Upgrade avalonia

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.github/workflows/build-linux.yml

@@ -8,42 +8,42 @@ on:
     inputs:
       version_override:
         type: string
-        description: 'Version number override'
+        description: "Version number override"
         required: false
       run_unit_tests:
         type: boolean
-        description: 'Skip running unit tests'
+        description: "Skip running unit tests"
         required: false
         default: true
       runs_on:
         type: string
-        description: 'The GitHub hosted runner to use'
+        description: "The GitHub hosted runner to use"
         required: true
       OS:
         type: string
         description: >
           The operating system targeted by the build.
-          
+
           There must be a corresponding Bundle_$OS.sh script file in ./Scripts
         required: true
       architecture:
         type: string
-        description: 'CPU architecture targeted by the build.'
+        description: "CPU architecture targeted by the build."
         required: true
 
 env:
-  DOTNET_CONFIGURATION: 'Release'
+  DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: '7.0.x'
+  DOTNET_VERSION: "9.0.x"
-  RELEASE_NAME: 'chardonnay'
+  RELEASE_NAME: "chardonnay"
 
 jobs:
   build:
-    name: '${{ inputs.OS }}-${{ inputs.architecture }}'
+    name: "${{ inputs.OS }}-${{ inputs.architecture }}"
     runs-on: ${{ inputs.runs_on }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup .NET
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: ${{ env.DOTNET_VERSION }}
         env:
@@ -60,7 +60,7 @@ jobs:
             version="$(grep -Eio -m 1 '<Version>.*</Version>' ./Source/AppScaffolding/AppScaffolding.csproj | sed -r 's/<\/?Version>//g')"
           fi
           echo "version=${version}" >> "${GITHUB_OUTPUT}"
-          
+
       - name: Unit test
         if: ${{ inputs.run_unit_tests }}
         working-directory: ./Source
@@ -69,7 +69,7 @@ jobs:
       - name: Publish
         id: publish
         working-directory: ./Source
-        run: |          
+        run: |
           if [[ "${{ inputs.OS }}" == "MacOS" ]]
           then
             display_os="macOS"
@@ -78,13 +78,13 @@ jobs:
             display_os="Linux"
             RUNTIME_ID="linux-${{ inputs.architecture }}"
           fi
-          
+
           OUTPUT="bin/Publish/${display_os}-${{ inputs.architecture }}-${{ env.RELEASE_NAME }}"
-          
+
           echo "display_os=${display_os}" >> $GITHUB_OUTPUT
           echo "Runtime Identifier: $RUNTIME_ID"
           echo "Output Directory: $OUTPUT"
-          
+
           dotnet publish \
               LibationAvalonia/LibationAvalonia.csproj \
               --runtime $RUNTIME_ID \
@@ -122,9 +122,9 @@ jobs:
           ${SCRIPT} "${BUNDLE_DIR}" "${{ steps.get_version.outputs.version }}" "${{ inputs.architecture }}"
           artifact=$(ls ./bundle)
           echo "artifact=${artifact}" >> "${GITHUB_OUTPUT}"
-          
+
       - name: Publish bundle
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ steps.bundle.outputs.artifact }}
           path: ./Source/bin/Publish/bundle/${{ steps.bundle.outputs.artifact }}

.github/workflows/build-windows.yml

@@ -8,21 +8,21 @@ on:
     inputs:
       version_override:
         type: string
-        description: 'Version number override'
+        description: "Version number override"
         required: false
       run_unit_tests:
         type: boolean
-        description: 'Skip running unit tests'
+        description: "Skip running unit tests"
         required: false
         default: true
 
 env:
-  DOTNET_CONFIGURATION: 'Release'
+  DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: '7.0.x'
+  DOTNET_VERSION: "9.0.x"
 
 jobs:
   build:
-    name: '${{ matrix.os }}-${{ matrix.release_name }}'
+    name: "${{ matrix.os }}-${{ matrix.release_name }}"
     runs-on: windows-latest
     strategy:
       matrix:
@@ -35,9 +35,9 @@ jobs:
             release_name: classic
             prefix: Classic-
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup .NET
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: ${{ env.DOTNET_VERSION }}
         env:
@@ -75,6 +75,7 @@ jobs:
               LibationCli/LibationCli.csproj `
               --configuration ${{ env.DOTNET_CONFIGURATION }} `
               --output bin/Publish/${{ matrix.os }}-${{ matrix.release_name }} `
+              -p:DefineConstants="${{ matrix.release_name }}" `
               -p:PublishProfile=LibationCli/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
           dotnet publish `
               Hangover${{ matrix.ui }}/Hangover${{ matrix.ui }}.csproj `
@@ -106,9 +107,9 @@ jobs:
           Compress-Archive -Path "${bin_dir}*" -DestinationPath "$artifact.zip"
 
       - name: Publish artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ steps.zip.outputs.artifact }}.zip
           path: ./Source/bin/Publish/${{ steps.zip.outputs.artifact }}.zip
           if-no-files-found: error
-          retention-days: 7          
+          retention-days: 7

.github/workflows/build.yml

@@ -8,22 +8,21 @@ on:
     inputs:
       version_override:
         type: string
-        description: 'Version number override'
+        description: "Version number override"
         required: false
       run_unit_tests:
         type: boolean
-        description: 'Skip running unit tests'
+        description: "Skip running unit tests"
         required: false
-        default: true        
+        default: true
 
 jobs:
-
   windows:
     uses: ./.github/workflows/build-windows.yml
     with:
       version_override: ${{ inputs.version_override }}
       run_unit_tests: ${{ inputs.run_unit_tests }}
-      
+
   linux:
     strategy:
       matrix:
@@ -36,7 +35,7 @@ jobs:
       OS: ${{ matrix.OS }}
       architecture: ${{ matrix.architecture }}
       run_unit_tests: ${{ inputs.run_unit_tests }}
-      
+
   macos:
     strategy:
       matrix:
@@ -47,4 +46,4 @@ jobs:
       runs_on: macos-latest
       OS: MacOS
       architecture: ${{ matrix.architecture }}
-      run_unit_tests: ${{ inputs.run_unit_tests }}     
+      run_unit_tests: ${{ inputs.run_unit_tests }}

.github/workflows/docker.yml

@@ -8,7 +8,11 @@ on:
     inputs:
       version:
         type: string
-        description: 'Version number'
+        description: "Version number"
+        required: true
+      release:
+        type: boolean
+        description: "Is this a release build?"
         required: true
     secrets:
       docker_username:
@@ -16,31 +20,44 @@ on:
       docker_token:
         required: true
 
-env:
-  DOCKER_IMAGE: ${{ secrets.docker_username }}/libation
-
 jobs:
-  docker:
+  build_and_push:
     runs-on: ubuntu-latest
+
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        if: ${{ inputs.release }}
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.docker_username }}
           password: ${{ secrets.docker_token }}
 
-      - name: Build and push
+      - name: Generate docker image tags
-        uses: docker/build-push-action@v4
+        id: metadata
+        uses: docker/metadata-action@v5
         with:
-          push: true
+          flavor: |
-          build-args: 'FOLDER_NAME=Linux-chardonnay'
+            latest=true
-          tags: ${{ env.DOCKER_IMAGE }}:latest,${{ env.DOCKER_IMAGE }}:${{ inputs.version }}
+          images: |
+            name=${{ secrets.docker_username }}/libation
+          tags: |
+            type=raw,value=${{ inputs.version }},enable=${{ inputs.release }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: ${{ steps.metadata.outputs.tags != ''}}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: ${{ steps.metadata.outputs.tags }}
+          labels: ${{ steps.metadata.outputs.labels }}

.github/workflows/release.yml

@@ -5,7 +5,7 @@ name: release
 on:
   push:
     tags:
-      - 'v*'
+      - "v*"
 jobs:
   prerelease:
     runs-on: ubuntu-latest
@@ -15,7 +15,7 @@ jobs:
       - name: Get tag version
         id: get_version
         run: |
-          export TAG='${{ github.ref_name }}'
+          export TAG="${{ github.ref_name }}"
           echo "version=${TAG#v}" >> "${GITHUB_OUTPUT}"
 
   docker:
@@ -23,6 +23,7 @@ jobs:
     uses: ./.github/workflows/docker.yml
     with:
       version: ${{ needs.prerelease.outputs.version }}
+      release: true
     secrets:
       docker_username: ${{ secrets.DOCKERHUB_USERNAME }}
       docker_token: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -33,29 +34,30 @@ jobs:
     with:
       version_override: ${{ needs.prerelease.outputs.version }}
       run_unit_tests: false
-      
+
   release:
-    needs: [prerelease,build]
+    needs: [prerelease, build]
     runs-on: ubuntu-latest
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: artifacts
+          pattern: "*(Classic-)Libation.*"
 
       - name: Release
         id: release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
-          name: Libation v${{ needs.prerelease.outputs.version }}
+          name: Libation ${{ needs.prerelease.outputs.version }}
           body: <Put a body here>
           draft: true
           prerelease: false
 
       - name: Upload release assets
-        uses: dwenegar/upload-release-assets@v1
+        uses: dwenegar/upload-release-assets@v2
         env:
-          GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
         with:
-          release_id: '${{ steps.release.outputs.id }}'
+          release_id: "${{ steps.release.outputs.id }}"
           assets_path: ./artifacts

.github/workflows/validate-appstream-metainfo.yaml

@@ -0,0 +1,22 @@
+name: Validate MetaInfo
+"on":
+  pull_request:
+    branches: ["master"]
+    paths:
+      - .github/workflows/validate-appstream-metainfo.yml
+      - Source/LoadByOS/LinuxConfigApp/com.getlibation.Libation.metainfo.xml
+  push:
+    branches: ["master"]
+    paths:
+      - .github/workflows/validate-appstream-metainfo.yml
+      - Source/LoadByOS/LinuxConfigApp/com.getlibation.Libation.metainfo.xml
+
+jobs:
+  validate-appstream-metainfo:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/flathub/flatpak-builder-lint:latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check the MetaInfo file
+        run: flatpak-builder-lint appstream Source/LoadByOS/LinuxConfigApp/com.getlibation.Libation.metainfo.xml

.github/workflows/validate-desktop-file.yaml

@@ -0,0 +1,21 @@
+name: Check desktop file
+"on":
+  pull_request:
+    branches: ["master"]
+    paths:
+      - .github/workflows/validate-desktop-file.yml
+      - Source/LoadByOS/LinuxConfigApp/Libation.desktop
+  push:
+    branches: ["master"]
+    paths:
+      - .github/workflows/validate-desktop-file.yml
+      - Source/LoadByOS/LinuxConfigApp/Libation.desktop
+
+jobs:
+  validate-desktop-file:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: sudo apt --yes install desktop-file-utils
+      - name: Check the desktop file
+        run: desktop-file-validate Source/LoadByOS/LinuxConfigApp/Libation.desktop

.github/workflows/validate.yml

@@ -1,5 +1,5 @@
 # validate.yml
-# Validates that Libation will build on a pull request or push to master. 
+# Validates that Libation will build on a pull request or push to master.
 ---
 name: validate
 
@@ -12,3 +12,11 @@ on:
 jobs:
   build:
     uses: ./.github/workflows/build.yml
+  docker:
+    uses: ./.github/workflows/docker.yml
+    with:
+      version: ${GITHUB_SHA}
+      release: false
+    secrets:
+      docker_username: ${{ secrets.DOCKERHUB_USERNAME }}
+      docker_token: ${{ secrets.DOCKERHUB_TOKEN }}

Docker/appsettings.json

@@ -0,0 +1,3 @@
+{
+  "LibationFiles": "/config-internal"
+}

Docker/liberate.sh

@@ -1,68 +1,174 @@
 #!/bin/bash
 
-# Rewire echo to print date time
+error() {
-echo() {
+  log "ERROR" "$1"
-    if [[ -n $1  ]]; then
-        printf "$(date '+%F %T'): %s\n" "$1"
-    fi
 }
 
-# ################################
+warn() {
-# Setup
+  log "WARNING" "$1"
-# ################################
+}
-echo "Starting"
-if [[ -z "${SLEEP_TIME}" ]]; then
-  echo "No sleep time passed in. Will run once and exit."
-else
-  echo "Sleep time is set to ${SLEEP_TIME}"
-fi
 
-echo ""
+info() {
+  log "info" "$1"
+}
 
-# Check if the config directory is passed in, and there is no link to it then create the link.
+debug() {
-if [ -d "/config" ] && [ ! -d "/root/Libation" ]; then
+  if [ "${LOG_LEVEL}" = "debug" ]; then
-    echo "Linking config directory to the Libation config directory"
+    log "debug" "$1"
-    ln -s /config/ /root/Libation
+  fi
-fi
+}
 
-# If no config error and exit
+log() {
-if [ ! -d "/config" ]; then
+  LEVEL=$1
-    echo "ERROR: No /config directory. You must pass in a volume containing your config mapped to /config"
+  MESSAGE=$2
+  printf "$(date '+%F %T') %s: %s\n" "${LEVEL}" "${MESSAGE}"
+}
+
+init_config_file() {
+  FILE=$1
+  FULLPATH=${LIBATION_CONFIG_DIR}/${FILE}
+  if [ -f ${FULLPATH} ]; then
+    info "loading ${FILE}"
+    cp ${FULLPATH} ${LIBATION_CONFIG_INTERNAL}/
+    return 0
+  else
+    warn "${FULLPATH} not found, creating empty file"
+    echo "{}" > ${LIBATION_CONFIG_INTERNAL}/${FILE}
+    return 1
+  fi
+}
+
+update_settings() {
+  FILE=$1
+  KEY=$2
+  VALUE=$3
+  info "setting ${KEY} to ${VALUE}"
+  echo $(jq --arg k "${KEY}" --arg v "${VALUE}" '.[$k] = $v' ${LIBATION_CONFIG_INTERNAL}/${FILE}) > ${LIBATION_CONFIG_INTERNAL}/${FILE}.tmp
+  mv ${LIBATION_CONFIG_INTERNAL}/${FILE}.tmp ${LIBATION_CONFIG_INTERNAL}/${FILE}
+}
+
+is_mounted() {
+  DIR=$1
+  if grep -qs "${DIR} " /proc/mounts;
+  then
+    return 0
+  else
+    return 1
+  fi
+}
+
+create_db() {
+  DBFILE=$1
+  if [ -f "${DBFILE}" ]; then
+    warn "prexisting database found when creating"
+    return 0
+  else
+    if ! touch "${DBFILE}"; then
+      error "unable to create database, check permissions on host"
+      exit 1
+    fi
+    return 1
+  fi
+}
+
+setup_db() {
+  DBPATH=$1
+  dbpattern="*.db"
+
+  debug "using database directory ${DBPATH}"
+
+  # Figure out the right databse file
+  if [[ -z "${LIBATION_DB_FILE}" ]];
+  then
+    dbCount=$(find "${DBPATH}" -maxdepth 1 -type f -name "${dbpattern}" | wc -l)
+    if [ "${dbCount}" -gt 1 ];
+    then
+      error "too many database files found, set LIBATION_DB_FILE to the filename you wish to use"
+      exit 1
+    elif [ "${dbCount}" -eq 1 ];
+    then
+      files=( ${DBPATH}/${dbpattern} )
+      FILE=${files[0]}
+    else
+      FILE="${DBPATH}/LibationContext.db"
+    fi
+  else
+    FILE="${DBPATH}/${LIBATION_DB_FILE}"
+  fi
+
+  debug "planning to use database ${FILE}"
+
+  if [ -f "${FILE}" ]; then
+    info "database found at ${FILE}"
+  elif [ ${LIBATION_CREATE_DB} = "true" ];
+  then
+    warn "database not found, creating one at ${FILE}"
+    create_db ${FILE}
+  else
+    error "database not found and creation is disabled"
     exit 1
-fi
+  fi
+  ln -s "${FILE}" "${LIBATION_CONFIG_INTERNAL}/LibationContext.db"
+}
 
-# If user passes in db from a /db/ folder and a db does not already exist / is not already linked
+run() {
-FILE=/db/LibationContext.db
+  info "scanning accounts"
-if [ -f "${FILE}" ] && [ ! -f "/config/LibationContext.db" ]; then
+  /libation/LibationCli scan
-    echo "Linking passed in Libation database from /db/ to the Libation config directory"
+  info "liberating books"
-    ln -s $FILE /config/LibationContext.db
+  /libation/LibationCli liberate
-fi
+}
 
-# Confirm we have a db in the config direcotry.
+main() {
-if [ ! -f "/config/LibationContext.db" ]; then
+  info "initializing libation"
-    echo "ERROR: No Libation database detected, exiting."
+  init_config_file AccountsSettings.json
-    exit 1
+  init_config_file Settings.json
-fi
+  
+  info "loading settings"
+  update_settings Settings.json Books /data
+  update_settings Settings.json InProgress /tmp
 
-# ################################
+  info "loading database"
-# Loop and liberate
+  # If user provides a separate database mount, use that
-# ################################
+  if is_mounted "${LIBATION_DB_DIR}";
-while true
+  then
-do
+    DB_LOCATION=${LIBATION_DB_DIR}
-    echo ""
+  # Otherwise, use the config directory
-    echo "Scanning accounts"
+  else
-    /libation/LibationCli scan
+    DB_LOCATION=${LIBATION_CONFIG_DIR}
-    echo "Liberating books"
+  fi
-    /libation/LibationCli liberate
+  setup_db ${DB_LOCATION}
-    echo ""
+
+  # Try to warn if books dir wasn't mounted in
+  if ! is_mounted "${LIBATION_BOOKS_DIR}";
+  then
+    warn "${LIBATION_BOOKS_DIR} does not appear to be mounted, books will not be saved"
+  fi
+
+  # Let the user know what the run type will be
+  if [[ -z "${SLEEP_TIME}" ]]; then
+    SLEEP_TIME=-1
+  fi
+
+  if [ "${SLEEP_TIME}" == -1 ]; then
+    info "running once"
+  else
+    info "running every ${SLEEP_TIME}"
+  fi
+
+  # loop
+  while true
+  do
+    run
     
     # Liberate only once if SLEEP_TIME was set to -1
-    if [ "${SLEEP_TIME}" = -1 ]; then
+    if [ "${SLEEP_TIME}" == -1 ]; then
       break  
     fi
 
-    echo "Sleeping for ${SLEEP_TIME}"
     sleep "${SLEEP_TIME}"
-done
+  done
 
-echo "Exiting"
+  info "exiting"
+}
+
+main

Dockerfile

@@ -1,22 +1,39 @@
 # Dockerfile
-FROM mcr.microsoft.com/dotnet/sdk:7.0 as build-env
+FROM --platform=${BUILDPLATFORM} mcr.microsoft.com/dotnet/sdk:9.0 AS build
+ARG TARGETARCH
 
 COPY Source /Source
-RUN dotnet publish -c Release -o /Source/bin/Publish/Linux-chardonnay /Source/LibationCli/LibationCli.csproj -p:PublishProfile=/Source/LibationCli/Properties/PublishProfiles/LinuxProfile.pubxml
+RUN dotnet publish \
-COPY Docker/liberate.sh /Source/bin/Publish/Linux-chardonnay
+    /Source/LibationCli/LibationCli.csproj \
+    --arch ${TARGETARCH} \
+    --configuration Release \
+    --output /Source/bin/Publish/Linux-chardonnay \
+    -p:PublishProfile=/Source/LibationCli/Properties/PublishProfiles/LinuxProfile.pubxml
+
+FROM mcr.microsoft.com/dotnet/runtime:9.0
+ARG USER_UID=1001
+ARG USER_GID=1001
+
+# Set the character set that will be used for folder and filenames when liberating
+ENV LANG=C.UTF-8
+ENV LC_ALL=C.UTF-8
+
+ENV SLEEP_TIME=-1
+ENV LIBATION_CONFIG_INTERNAL=/config-internal
+ENV LIBATION_CONFIG_DIR=/config
+ENV LIBATION_DB_DIR=/db
+ENV LIBATION_DB_FILE=
+ENV LIBATION_CREATE_DB=true
+ENV LIBATION_BOOKS_DIR=/data
 
 
-FROM mcr.microsoft.com/dotnet/runtime:7.0
+RUN apt-get update && apt-get -y upgrade && \
+    apt-get install -y jq && \
+    mkdir -m777 ${LIBATION_CONFIG_INTERNAL} ${LIBATION_BOOKS_DIR}
 
-ENV SLEEP_TIME "30m"
+COPY --from=build /Source/bin/Publish/Linux-chardonnay /libation
+COPY Docker/* /libation
 
-# Sets the character set that will be used for folder and filenames when liberating
+USER ${USER_UID}:${USER_GID}
-ENV LANG C.UTF-8
-ENV LC_ALL C.UTF-8
 
-RUN mkdir /db /config /data
+CMD ["/libation/liberate.sh"]
-
-COPY --from=build-env /Source/bin/Publish/Linux-chardonnay /libation
-
-
-CMD ["./libation/liberate.sh"]

Documentation/Advanced.md

@@ -1,6 +1,6 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 
@@ -28,6 +28,15 @@ To make upgrades and reinstalls easier, Libation separates all of its responsibi
 
 * Allow Libation to fix up audiobook metadata. After decrypting a title, Libation attempts to fix details like chapters and cover art. Some power users and/or control freaks prefer to manage this themselves. By unchecking this setting, Libation will only decrypt the book and will leave metadata as-is, warts and all.
 
+In addition to the options that are enabled if you allow Libation to "fix up" the audiobook, it does the following:
+
+* Adds the `TCOM` (`@wrt` in M4B files) metadata tag for the narrators.
+* Sets the `©gen` metadata tag for the genres.
+* Unescapes the copyright symbol (replace `©` with `©`)
+* Replaces the recording copyright `(P)` string with `℗`
+* Replaces the chapter markers embedded in the aax file with the chapter markers retrieved from Audible's API.
+* Sets the embedded cover art image with the 500x500 px cover art retrieved from Audible
+
 ### Command Line Interface
 
 Libationcli.exe allows limited access to Libation's functionalities as a CLI.

Documentation/Docker.md

@@ -1,31 +1,32 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
+> [!WARNING]
+> ## Breaking Changes
+> * The docker image now runs as user 1001 and group 1001. Make sure that the permissions on your volumes allow user 1001 to read and write to them.
+> * `SLEEP_TIME` is now set to `-1` by default. This means the image will run once and exit. If you were relying on the previous default, you'll need to explicitly set the `SLEEP_TIME` environment variable to `30m` to replicate the previous behavior.
+> * The docker image now ignores the values in `Settings.json` for `Books` and `InProgress`. You can now change the folder that books are saved to by using the `LIBATION_BOOKS_DIR` environment variable.
 
-### Disclaimer
+# Disclaimer
 The docker image is provided as-is. We hope it can be useful to you but it is not officially supported.
 
-### Setup
+### Configuration
-In order to use the docker image, you'll need to provide it with a copy of the `AccountsSettings.json`, `Settings.json`, and `LibationContext.db` files. These files can usually be found in the Libation folder in your user's home directory. If you haven't run Libation yet, you'll need to launch it to generate these files and setup your accounts. Once you have them, copy these files to a new location, such as `/opt/libation/config`. Before using them we'll need to make a couple edits so that the filepaths referenced are correct when running from the docker image.
+Configuration in Libation is handled by two files, `AccountsSettings.json` and `Settings.json`. These files can usually be found in the Libation folder in your user's home directory. The easiest way to configure these is to run the desktop version of Libation and then copy them into a folder, such as `/opt/libation/config`, that you'll volume mount into the image. `Settings.json` is technically optional, and, if not provided, Libation will run using the default settings. Additionally, the `Books` and `InProgress` settings in `Settings.json` will be ignored and the image will instead substitute it's own values.
-
-In Settings.json, make the following changes:
-* Change `Books` to `/data`
-* Change `InProgress` to `/tmp`
 
 ### Running
-Once the configuration files are copied and edited, the docker image can be run with the following command.
+Once the configuration files are copied, the docker image can be run with the following command.
 ```
 sudo docker run -d \
   -v /opt/libation/config:/config \
   -v /opt/libation/books:/data \
   --name libation \
   --restart=always \
-  rmcrackan/libation
+  rmcrackan/libation:latest
 ```
 
-By default the container will scan for new books every 30 minutes and download any new ones. This is configurable by passing in a value for the `SLEEP_TIME` environment variable. Additionally, if you pass in `-1` it will scan and download books once and then exit.
+By default the container will scan for new books once and download any new ones. This is configurable by passing in a value for the `SLEEP_TIME` environment variable. For example, if you pass in `10m` it will keep running, scan for new books, and download them every 10 minutes.
 
 ```
 sudo docker run -d \
@@ -34,6 +35,33 @@ sudo docker run -d \
   -e SLEEP_TIME='10m' \
   --name libation \
   --restart=always \
-  rmcrackan/libation
+  rmcrackan/libation:latest
 ```
 
+### Environment Variables
+| Env Var  | Default | Description |
+| -------- | ------- | ----------- |
+| SLEEP_TIME  | -1 | Length of time to sleep before doing another scan/download. Set to -1 to run one. |
+| LIBATION_BOOKS_DIR | /data | Folder where books will be saved |
+| LIBATION_CONFIG_DIR | /config | Folder to read configuration from. |
+| LIBATION_DB_DIR    | /db | Optional folder to load database from. If not mounted, will load database from `LIBATION_CONFIG_DIR`. |
+| LIBATION_DB_FILE | | Name of database file to load. By default it will look for all `.db` files and load one if there is only one present. |
+| LIBATION_CREATE_DB | true | Whether or not the image should create a database file if none are found. |
+
+### User
+This docker image runs as user `1001`. In order for the image to function properly, user `1001` must be able to read and write the volumes that are mounted in. If they are not, you will see errors 
+
+If you want to change the user the image runs as, you can specify `-u <uid>:<gid>`. For example, to run it as user `2000` and group `3000`, you could do the following:
+
+```
+sudo docker run -d \
+  -u 2000:3000 \
+  -v /opt/libation/config:/config \
+  -v /opt/libation/books:/data \
+  --name libation \
+  --restart=always \
+  rmcrackan/libation:latest
+```
+
+### Advanced Database Options
+The docker image supports an optional database mount location defined by `LIBATION_DB_DIR`. This allows the database to be mounted as read/write, while allowing the rest of the configuration files to be mounted as read only. This is specifically useful if running in Kubernetes where you can use Configmaps and Secrets to define the configuration. If the `LIBATION_DB_DIR` is mounted, it will be used, otherwise it will look for the database in `LIBATION_CONFIG_DIR`. If it does not find the database in the expected location, it will attempt to make an empty database there.

Documentation/FrequentlyAskedQuestions.md

@@ -0,0 +1,38 @@
+## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
+
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
+...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
+
+
+
+# Frequently Asked Questions
+
+## Q: What's the difference between 'Classic' and 'Chardonnay'?
+
+**A:** First and most importantly: Classic and Chardonnay have the exact same features.
+
+* **Classic** is Windows only. Its older 'grey boxes' look has a compact design which allows for more information on the screen. Notably, Classic was written using an older, more mature technology which has built-in support for screenreaders.
+
+* **Chardonnay** is available for Windows, Mac, and Linux. Its modern design has a more open look and feel.
+
+## Q: Now that I've downloaded my books, how can I listen to them?
+
+**A:** You can use any app which plays m4b files (or mp3 files if you used that setting). Here are just a few ideas. Disclaimer: I have no affiliation with any of these companies:
+
+* iOS: [BookPlayer](https://apps.apple.com/us/app/bookplayer/id1138219998)
+* iOS: [Bound](https://apps.apple.com/us/app/bound-audiobook-player/id1041727137)
+* Android: [Smart AudioBook Player](https://play.google.com/store/apps/details?id=ak.alizandro.smartaudiobookplayer&hl=en_US&gl=US)
+* Android: [Listen](https://play.google.com/store/apps/details?id=ru.litres.android.audio&hl=en_US&gl=US)
+* Desktop: [VLC](https://www.videolan.org/)
+* Windows Desktop: [Audibly](https://github.com/rstewa/Audibly) -- a desktop player build specifically for audiobooks
+
+Self-hosting online:
+
+* [audiobookshelf](https://www.audiobookshelf.org). On [reddit](https://www.reddit.com/r/audiobookshelf/)
+* [plex](https://www.plex.tv/). Listen with [Prologue](https://prologue.audio/) (iOS)
+
+## Q: How do I use Libation with a South Africa account?
+
+**A:** Like many countries, amazon gives South Africa it's own amazon site. [Unlike many other regions](https://www.audible.com/ep/country-selector) there is not South Africa specific audible site. Use `US` for your region -- ie: audible.com.
+
+(Not exactly a *frequently* asked question but it's come up more than once)

Documentation/GettingStarted.md

@@ -1,6 +1,6 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 

Documentation/InstallOnLinux.md

@@ -1,27 +1,59 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 
-### Install and Run Libation on Ubuntu
+## Packaging status
 
-New Libation releases are automatically packed into .deb and .rpm package and are available from the Libation repository's releases page.
+[![Packaging status](https://repology.org/badge/vertical-allrepos/libation.svg)](https://repology.org/project/libation/versions)
 
+New Libation releases are automatically packed into `.deb` and `.rpm` package and are available from the Libation repository's releases page.
 
-Run this command in your terminal to dowbnload and install Libation, replacing the url with the latest Libation package url:
+Run this command in your terminal to download and install Libation, replacing the url with the latest Libation package url:
 
-- Debian
+### Debian
   ```Console
   wget -O libation.deb https://github.com/rmcrackan/Libation/releases/download/vX.X.X/Libation.X.X.X-linux-chardonnay.deb &&
   sudo apt install ./libation.deb
   ```
-- Redhat and CentOS
+### Redhat and CentOS
   ```Console
   wget -O libation.rpm https://github.com/rmcrackan/Libation/releases/download/vX.X.X/Libation.X.X.X-linux-chardonnay.rpm &&
   sudo yum install ./libation.rpm
   ```
+---
+### Arch Linux
+  ```Console
+  yay -S libation
+  ```
+  This package is available on [Arch User Repository](https://aur.archlinux.org/packages/libation), install via your choice of [AUR helpers](https://wiki.archlinux.org/title/AUR_helpers).
+  
+  Thanks to [mhdi](https://aur.archlinux.org/account/mhdi) for taking care of AUR package maintenance.
+### NixOS
+  - Install via `nix-shell`
+    ```Console
+    nix-shell -p libation
+    ```
+    A `nix-shell` will temporarily modify your $PATH environment variable. This can be used to try a piece of software before deciding to permanently install it.
+  - Install via NixOS configuration
+    ```Console
+    environment.systemPackages = [
+      pkgs.libation
+    ];
+    ```
+    Add the following Nix code to your NixOS Configuration, usually located in `/etc/nixos/configuration.nix`
+  - On NixOS via via `nix-env`
+    ```Console
+    nix-env -iA nixos.libation
+    ```
+  - On Non NixOS via `nix-env`
+    ```Console
+    nix-env -iA nixpkgs.libation
+    ```
+    Warning: Using `nix-env` permanently modifies a local profile of installed packages. This must be updated and maintained by the user in the same way as with a traditional package manager.
 
+    Thanks to [TomaSajt](https://github.com/tomasajt) for taking care of Nix package maintenance.
 
 If your desktop uses gtk, you should now see Libation among your applications.
 

Documentation/InstallOnMac.md

@@ -1,9 +1,10 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 
+
 # Run Libation on MacOS
 This walkthrough should get you up and running with Libation on your Mac.
 
@@ -15,13 +16,40 @@ This walkthrough should get you up and running with Libation on your Mac.
   - Apple Silicon (M1, M2, ...): `Libation.9.4.2-macOS-chardonnay-`**arm64**`.tgz`
   - Intel: `Libation.x.x.x-macOS-chardonnay-`**x64**`.tgz`
 - Move the extracted Libation app bundle to your applications folder.
-- Open a terminal (Go > Utilities > Terminal)
+- Right-click on Libation and then click on open
-- Copy/paste/run the following command (you'll be prompted to enter your password)
+- The first time, it will not immediately show you an option to open it. Just dismiss the dialog and do the same thing again (right-click -> open) then you will get an option to run the unsigned application. This takes about 10 seconds.
-  
+
+## If this doesn't work
+
+You can add Libation as a safe app without touching Gatekeeper.
+
+- Copy/paste/run the following command. Adjust the file path to the Libation.app on your computer if necessary.
+
+  ```Console
+  xattr -r -d com.apple.quarantine ~/Downloads/Libation.app
+  ```
+- Close the terminal and use Libation!
+
+## If this still doesn't work
+
+- Copy/paste/run the following command (you'll be prompted to enter your Mac password)
+
   ```Console
   sudo spctl --master-disable && sudo spctl --add --label "Libation" /Applications/Libation.app && open /Applications/Libation.app && sudo spctl --master-enable
-  ```  
+  ```
-- Close the terminal and use Libation!
+
+* Close the terminal and use Libation!
+
+## Troubleshooting
+
+If Libation fails to start after completing the above steps, try the following:
+
+1. Right-click the Libation app in your applications folder and select _Show Package Contents_
+2. Open the `Contents` folder and then the `MacOS` folder.
+3. Find the file named `Libation`, right-click it, and then select _Open_.
+
+Libation _should_ launch, and you should now be able to open Libation by just double-clicking the app bundle in your applications folder.
+
 
 ## Running Hangover
 
@@ -30,7 +58,7 @@ Libation comes with a recovery app called Hangover. You can start it by running
 open /Applications/Libation.app --args hangover
 ```
 
-## Runnign LibationCli
+## Running LibationCli
 
 Libation comes with a command-line interface. Unfortunately, due to the way apps are sandboxed on mac, its use is somewhat limited. To open a new sandboxed terminal in LibationCli's directory, run the following command:
 ```Console

Documentation/NamingTemplates.md

@@ -1,3 +1,10 @@
+## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
+
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
+...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
+
+
+
 # Naming Templates
 File and Folder names can be customized using Libation's built-in tag template naming engine. To edit how folder and file names are created, go to Settings \> Download/Decrypt and edit the naming templates. If you're splitting your audiobook into multiple files by chapter, you can also use a custom template to set each chapter's title metadata tag by editing the template in Settings \> Audio File Options.
 
@@ -11,7 +18,7 @@ These templates apply to both GUI and CLI.
 - [Tag Formatters](#tag-formatters)
   - [Text Formatters](#text-formatters)
   - [Name List Formatters](#name-list-formatters)
-  - [Integer Formatters](#integer-formatters)
+  - [Number Formatters](#number-formatters)
   - [Date Formatters](#date-formatters)
 
 
@@ -25,29 +32,32 @@ These tags will be replaced in the template with the audiobook's values.
 |Tag|Description|Type|
 |-|-|-|
 |\<id\> **†**|Audible book ID (ASIN)|Text|
-|\<title\>|Full title|Text|
+|\<title\>|Full title with subtitle|Text|
 |\<title short\>|Title. Stop at first colon|Text|
+|\<audible title\>|Audible's title (does not include subtitle)|Text|
+|\<audible subtitle\>|Audible's subtitle|Text|
 |\<author\>|Author(s)|Name List|
 |\<first author\>|First author|Text|
 |\<narrator\>|Narrator(s)|Name List|
 |\<first narrator\>|First narrator|Text|
 |\<series\>|Name of series|Text|
-|\<series#\>|Number order in series|Text|
+|\<series#\>|Number order in series|Number|
-|\<bitrate\>|File's original bitrate (Kbps)|Integer|
+|\<bitrate\>|File's original bitrate (Kbps)|Number|
-|\<samplerate\>|File's original audio sample rate|Integer|
+|\<samplerate\>|File's original audio sample rate|Number|
-|\<channels\>|Number of audio channels|Integer|
+|\<channels\>|Number of audio channels|Number|
 |\<account\>|Audible account of this book|Text|
+|\<account nickname\>|Audible account nickname of this book|Text|
 |\<locale\>|Region/country|Text|
-|\<year\>|Year published|Integer|
+|\<year\>|Year published|Number|
 |\<language\>|Book's language|Text|
 |\<language short\> **†**|Book's language abbreviated. Eg: ENG|Text|
 |\<file date\>|File creation date/time.|DateTime|
 |\<pub date\>|Audiobook publication date|DateTime|
 |\<date added\>|Date the book added to your Audible account|DateTime|
-|\<ch count\> **‡**|Number of chapters|Integer|
+|\<ch count\> **‡**|Number of chapters|Number|
 |\<ch title\> **‡**|Chapter title|Text|
-|\<ch#\> **‡**|Chapter number|Integer|
+|\<ch#\> **‡**|Chapter number|Number|
-|\<ch# 0\> **‡**|Chapter number with leading zeros|Integer|
+|\<ch# 0\> **‡**|Chapter number with leading zeros|Number|
 
 **†** Does not support custom formatting
 
@@ -63,6 +73,9 @@ Anything between the opening tag (`<tagname->`) and closing tag (`<-tagname>`) w
 |\<if series-\>...\<-if series\>|Only include if part of a book series or podcast|Conditional|
 |\<if podcast-\>...\<-if podcast\>|Only include if part of a podcast|Conditional|
 |\<if bookseries-\>...\<-if bookseries\>|Only include if part of a book series|Conditional|
+|\<if podcastparent-\>...\<-if podcastparent\>**†**|Only include if item is a podcast series parent|Conditional|
+
+**†** Only affects the podcast series folder naming if "Save all podcast episodes to the series parent folder" option is checked.
 
 For example, <if podcast-\>\<series\>\<-if podcast\> will evaluate to the podcast's series name if the file is a podcast. For audiobooks that are not podcasts, that tag will be blank.
 
@@ -74,7 +87,7 @@ As an example, this folder template will place all Liberated podcasts into a "Po
 
 
 # Tag Formatters
-**Text**, **Name List**, **Integer**, and **DateTime** tags can be optionally formatted using format text in square brackets after the tag name. Below is a list of supported formatters for each tag type.
+**Text**, **Name List**, **Number**, and **DateTime** tags can be optionally formatted using format text in square brackets after the tag name. Below is a list of supported formatters for each tag type.
 
 ## Text Formatters
 |Formatter|Description|Example Usage|Example Result|
@@ -85,15 +98,18 @@ As an example, this folder template will place all Liberated podcasts into a "Po
 ## Name List Formatters
 |Formatter|Description|Example Usage|Example Result|
 |-|-|-|-|
-|separator()|Speficy the text used to join multiple people's names.<br><br>Default is ", "|`<author[separator(; )]>`|Arthur Conan Doyle; Stephen Fry|
+|separator()|Speficy the text used to join<br>multiple people's names.<br><br>Default is ", "|`<author[separator(; )]>`|Arthur Conan Doyle; Stephen Fry|
-|format(\{T \| F \| M \| L \| S\})|Formats the human name using the name part tags.<br>\{T\} = Title (e.g. "Dr.")<br>\{F\} = First name<br>\{M\} = Middle name<br>\{L\} = Last Name<br>\{S\} = Suffix (e.g. "PhD")<br><br>Default is \{P\} \{F\} \{M\} \{L\} \{S\} |`<author[format({L}, {F}) separator(; )]>`|Doyle, Arthur; Fry, Stephen|
+|format(\{T \| F \| M \| L \| S\})|Formats the human name using<br>the name part tags.<br>\{T\} = Title (e.g. "Dr.")<br>\{F\} = First name<br>\{M\} = Middle name<br>\{L\} = Last Name<br>\{S\} = Suffix (e.g. "PhD")<br><br>Default is \{P\} \{F\} \{M\} \{L\} \{S\}|`<author[format({L}, {F})`<br>`separator(; )]>`|Doyle, Arthur; Fry, Stephen|
-|sort(F \| M \| L)|Sorts the names by first, middle, or last name<br><br>Default is unsorted|`<author[sort(M)]>`|Stephen Fry, Arthur Conan Doyle|
+|sort(F \| M \| L)|Sorts the names by first, middle,<br>or last name<br><br>Default is unsorted|`<author[sort(M)]>`|Stephen Fry, Arthur Conan Doyle|
 |max(#)|Only use the first # of names<br><br>Default is all names|`<author[max(1)]>`|Arthur Conan Doyle|
 
-## Integer Formatters
+## Number Formatters
+For more custom formatters and examples, [see this guide from Microsoft](https://learn.microsoft.com/en-us/dotnet/standard/base-types/custom-numeric-format-strings).
 |Formatter|Description|Example Usage|Example Result|
 |-|-|-|-|
-|# (a number)|Zero-pads the number|\<bitrate\[4\]\><br>\<series#\[3\]\><br>\<samplerate\[6\]\>|0128<br>001<br>044100|
+|\[integer\]|Zero-pads the number|\<bitrate\[4\]\><br>\<series#\[3\]\><br>\<samplerate\[6\]\>|0128<br>001<br>044100|
+|0|Replaces the zero with the corresponding digit if one<br>is present; otherwise, zero appears in the result string.|\<series#\[000.0\]\>|001.0|
+|#|Replaces the "#" symbol with the corresponding digit if one<br> is present; otherwise, no digit appears in the result string|\<series#\[00.##\]\>|01|
 
 ## Date Formatters
 Form more standard formatters, [see this guide from Microsoft](https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-date-and-time-format-strings).

Documentation/SearchingAndFiltering.md

@@ -1,6 +1,6 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 

Images/libation_glass.svg

@@ -1,28 +1,39 @@
-<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 512 512" enable-background="new 0 0 512 512">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 524 524" enable-background="new 0 0 524 524">
-<path id="glass" d=
+	<defs>
-"M139,2
+		<g id="glass">
-	A 192,200 0 0 0 103,84
+			<path fill-rule="evenodd" d=
-	A 222,334 41 0 0 241,320
+				"M262,8
-	V478
+					h-117
-	H160
+					a 192,200 0 0 0 -36,82
-	A 16,16 0 0 0 160,510
+					a 222,334 41 0 0 138,236
-	H352
+					v158
-	A16 16 0 0 0 352,478
+					h-81
-	H271
+					a 16,16 0 0 0 0,32
-	V320
+					h192
-	A 222,334 -41 0 0 409,84
+					a 16 16 0 0 0 0,-32
-	A 192,200 0 0 0 373,2
+					h-81
-M355,32
+					v-158
-	A 192,200 0 0 1 381,127
+					a 222,334 -41 0 0 138,-236
-	A 187.5,334 -35 0 1 256,286
+					a 192,200 0 0 0 -36,-82
-	A 187.5,334 35 0 1 131,127
+					h-117
-	A 192,200 0 0 1 157,32
+				m-99,30
-	H355
+					a 192,200 0 0 0 -26,95
-z" />
+					a 187.5,334 35 0 0 125,159
-
+					a 187.5,334 -35 0 0 125,-159
-<path id="wine-level" d=
+					a 192,200 0 0 0 -26,-95
-"M146,128
+					h-198
-	A 168,300 35 0 0 256,270
+				z"/>
-	A 168,300 -35 0 0 366,128
+		</g>
-z"/>
+		<g id="wine-level">
+			<path d=
+				"M158,136
+					a 168,305 35 0 0 104,136
+					a 168,305 -35 0 0 104,-136
+				z"/>
+		</g>
+	</defs>	
+	<use href="#glass" stroke="#ffffffa0" stroke-width="16" fill="Transparent" />
+	<use href="#wine-level" stroke="#ffffffa0" stroke-width="16" fill="Transparent" />
+	<use href="#glass" fill="Black" />
+	<use href="#wine-level" fill="Black" />
 </svg>

README.md

@@ -2,9 +2,11 @@
 
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/MBucari?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
+
+
 # Table of Contents
 
 - [Audible audiobook manager](#audible-audiobook-manager)
@@ -31,6 +33,7 @@
     - [Custom File Naming](Documentation/NamingTemplates.md)
     - [Command Line Interface](Documentation/Advanced.md#command-line-interface)
 - [Docker](Documentation/Docker.md)
+- [Frequently Asked Questions](Documentation/FrequentlyAskedQuestions.md)
 
 ## Getting started
 
@@ -49,12 +52,12 @@
 * Customizable saved filters for common searches
 * Open source
 * Supports most regions: US, UK, Canada, Germany, France, Australia, Japan, India, and Spain
+* Fully supported in Windows, Mac, and Linux
 
 <a name="theBad"/>
 
 ### The bad
 
-* Only fully supported in Windows. (Mac and Linux are in beta)
 * Large file size
 * Made by a programmer, not a designer so the goals are function rather than beauty. And it shows
 

Scripts/Bundle_Debian.sh

@@ -109,9 +109,6 @@ ln -s /usr/lib/libation/LibationCli /usr/bin/libationcli
 if ! grep -q 'fs.inotify.max_user_instances=524288' /etc/sysctl.conf; then
   echo fs.inotify.max_user_instances=524288 | tee -a /etc/sysctl.conf && sysctl -p
 fi
-# workaround until this file is moved to the user's home directory
-touch /usr/lib/libation/appsettings.json
-chmod 666 /usr/lib/libation/appsettings.json
 " >> $FOLDER_DEBIAN/postinst
 
 echo "Creating control file..."

Scripts/Bundle_MacOS.sh

@@ -86,8 +86,12 @@ delfiles=( 'libmp3lame.arm64.so' 'libmp3lame.x64.so' 'libmp3lame.x64.dll' 'libmp
 if [[ "$ARCH" == "arm64" ]]
 then
   delfiles+=('libmp3lame.x64.dylib' 'ffmpegaac.x64.dylib')
+  mv $BUNDLE_MACOS/ffmpegaac.arm64.dylib  $BUNDLE_MACOS/ffmpegaac.dylib
+  mv $BUNDLE_MACOS/libmp3lame.arm64.dylib  $BUNDLE_MACOS/libmp3lame.dylib
 else
   delfiles+=('libmp3lame.arm64.dylib' 'ffmpegaac.arm64.dylib')
+  mv $BUNDLE_MACOS/ffmpegaac.x64.dylib  $BUNDLE_MACOS/ffmpegaac.dylib
+  mv $BUNDLE_MACOS/libmp3lame.x64.dylib  $BUNDLE_MACOS/libmp3lame.dylib
 fi
 
 
@@ -111,4 +115,4 @@ mv $APP_FILE ./bundle/$APP_FILE
 
 rm -r $BUNDLE
 
-echo "Done!"
+echo "Done!"

Scripts/Bundle_Redhat.sh

@@ -81,8 +81,6 @@ if test -f 'libcoreclrtraceptprovider.so'; then
     rm 'libcoreclrtraceptprovider.so'
 fi
 
-touch appsettings.json
-chmod 666 appsettings.json
 
 install -m 666 libation_glass.svg %{buildroot}%{_datadir}/icons/hicolor/scalable/apps/libation.svg
 install -m 666 Libation.desktop %{buildroot}%{_datadir}/applications/Libation.desktop
@@ -94,26 +92,31 @@ install * %{buildroot}%{_libdir}/%{name}/
 
 %post
 
-ln -s %{_libdir}/%{name}/Libation %{_bindir}/libation
+if [ \$1 -eq 1 ] ; then
-ln -s %{_libdir}/%{name}/Hangover %{_bindir}/hangover
+  # Initial installation
-ln -s %{_libdir}/%{name}/LibationCli %{_bindir}/libationcli
+  
+  ln -s %{_libdir}/%{name}/Libation %{_bindir}/libation
+  ln -s %{_libdir}/%{name}/Hangover %{_bindir}/hangover
+  ln -s %{_libdir}/%{name}/LibationCli %{_bindir}/libationcli
 
-gtk-update-icon-cache -f %{_datadir}/icons/hicolor/
+  gtk-update-icon-cache -f %{_datadir}/icons/hicolor/
+    
+  if ! grep -q 'fs.inotify.max_user_instances=524288' /etc/sysctl.conf; then
+    echo fs.inotify.max_user_instances=524288 | tee -a /etc/sysctl.conf && sysctl -p
+  fi
+fi
 
 %postun
-
+if [ \$1 -eq 0 ] ; then
-rm %{_bindir}/libation
+  # Uninstall
-rm %{_bindir}/hangover
+  rm %{_bindir}/libation
-rm %{_bindir}/libationcli
+  rm %{_bindir}/hangover
-
+  rm %{_bindir}/libationcli
-if ! grep -q 'fs.inotify.max_user_instances=524288' /etc/sysctl.conf; then
-  echo fs.inotify.max_user_instances=524288 | tee -a /etc/sysctl.conf && sysctl -p
 fi
 
 %files
 %{_datadir}/icons/hicolor/scalable/apps/libation.svg
-%{_datadir}/applications/Libation.desktop
+%{_datadir}/applications/Libation.desktop" >> ~/rpmbuild/SPECS/libation.spec
-%{_libdir}/%{name}/appsettings.json" >> ~/rpmbuild/SPECS/libation.spec
 
 
 cd "$BIN_DIR"

Source/AaxDecrypter/AaxDecrypter.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -13,7 +13,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="AAXClean.Codecs" Version="1.0.3" />
+	  <PackageReference Include="AAXClean.Codecs" Version="1.1.3" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/AaxDecrypter/AaxcDownloadConvertBase.cs

@@ -47,20 +47,41 @@ namespace AaxDecrypter
 			if (DownloadOptions.FixupFile)
 			{
 				if (!string.IsNullOrWhiteSpace(AaxFile.AppleTags.Narrator))
-					AaxFile.AppleTags.AppleListBox.EditOrAddTag("TCOM", AaxFile.AppleTags.Narrator);
+					AaxFile.AppleTags.AppleListBox.EditOrAddTag("©wrt", AaxFile.AppleTags.Narrator);
 
 				if (!string.IsNullOrWhiteSpace(AaxFile.AppleTags.Copyright))
 					AaxFile.AppleTags.Copyright = AaxFile.AppleTags.Copyright.Replace("(P)", "℗").Replace("©", "©");
+
+				//Add audiobook shelf tags
+				//https://github.com/advplyr/audiobookshelf/issues/1794#issuecomment-1565050213
+				const string tagDomain = "com.pilabor.tone";
+
+				AaxFile.AppleTags.Title = DownloadOptions.Title;
+
+				if (DownloadOptions.Subtitle is string subtitle)
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "SUBTITLE", subtitle);
+
+				if (DownloadOptions.Publisher is string publisher)
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "PUBLISHER", publisher);
+
+				if (DownloadOptions.Language is string language)
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "LANGUAGE", language);
+
+				if (DownloadOptions.AudibleProductId is string asin)
+				{
+					AaxFile.AppleTags.Asin = asin;
+					AaxFile.AppleTags.AppleListBox.EditOrAddTag("asin", asin);
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "AUDIBLE_ASIN", asin);
+				}
+
+				if (DownloadOptions.SeriesName is string series)
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "SERIES", series);
+
+				if (DownloadOptions.SeriesNumber is float part)
+					AaxFile.AppleTags.AppleListBox.EditOrAddFreeformTag(tagDomain, "PART", part.ToString());
 			}
 
-			//Finishing configuring lame encoder.
+			OnInitialized();
-			if (DownloadOptions.OutputFormat == OutputFormat.Mp3)
-				MpegUtil.ConfigureLameOptions(
-					AaxFile,
-					DownloadOptions.LameConfig,
-					DownloadOptions.Downsample,
-					DownloadOptions.MatchSourceBitrate);
-
 			OnRetrievedTitle(AaxFile.AppleTags.TitleSansUnabridged);
 			OnRetrievedAuthors(AaxFile.AppleTags.FirstAuthor ?? "[unknown]");
 			OnRetrievedNarrators(AaxFile.AppleTags.Narrator ?? "[unknown]");
@@ -70,5 +91,7 @@ namespace AaxDecrypter
 
 			return !IsCanceled;
 		}
+
+		protected virtual void OnInitialized() { }
 	}
 }

Source/AaxDecrypter/AaxcDownloadMultiConverter.cs

@@ -21,6 +21,18 @@ namespace AaxDecrypter
 			AsyncSteps["Step 3: Download Clips and Bookmarks"] = Step_DownloadClipsBookmarksAsync;
 		}
 
+		protected override void OnInitialized()
+		{
+			//Finishing configuring lame encoder.
+			if (DownloadOptions.OutputFormat == OutputFormat.Mp3)
+				MpegUtil.ConfigureLameOptions(
+					AaxFile,
+					DownloadOptions.LameConfig,
+					DownloadOptions.Downsample,
+					DownloadOptions.MatchSourceBitrate,
+					chapters: null);
+		}
+
 		/*
 https://github.com/rmcrackan/Libation/pull/127#issuecomment-939088489
 

Source/AaxDecrypter/AaxcDownloadSingleConverter.cs

@@ -3,7 +3,6 @@ using AAXClean.Codecs;
 using Dinah.Core.Net.Http;
 using FileManager;
 using System;
-using System.Diagnostics;
 using System.IO;
 using System.Threading.Tasks;
 
@@ -26,6 +25,18 @@ namespace AaxDecrypter
 			AsyncSteps[$"Step {step++}: Create Cue"] = Step_CreateCueAsync;
 		}
 
+		protected override void OnInitialized()
+		{
+			//Finishing configuring lame encoder.
+			if (DownloadOptions.OutputFormat == OutputFormat.Mp3)
+				MpegUtil.ConfigureLameOptions(
+					AaxFile,
+					DownloadOptions.LameConfig,
+					DownloadOptions.Downsample,
+					DownloadOptions.MatchSourceBitrate,
+					DownloadOptions.ChapterInfo);
+		}
+
 		protected async override Task<bool> Step_DownloadAndDecryptAudiobookAsync()
 		{
 			FileUtility.SaferDelete(OutputFileName);

Source/AaxDecrypter/AudiobookDownloadBase.cs

@@ -118,11 +118,7 @@ namespace AaxDecrypter
 		public abstract Task CancelAsync();
 		protected abstract Task<bool> Step_DownloadAndDecryptAudiobookAsync();
 
-		public virtual void SetCoverArt(byte[] coverArt)
+		public virtual void SetCoverArt(byte[] coverArt) { }
-		{
-			if (coverArt is not null)
-				OnRetrievedCoverArt(coverArt);
-		}
 
 		protected void OnRetrievedTitle(string title)
 			=> RetrievedTitle?.Invoke(this, title);
@@ -190,7 +186,11 @@ namespace AaxDecrypter
 				//Write aax decryption key
 				string keyPath = Path.ChangeExtension(aaxPath, ".key");
 				FileUtility.SaferDelete(keyPath);
-				await File.WriteAllTextAsync(keyPath, $"Key={DownloadOptions.AudibleKey}{Environment.NewLine}IV={DownloadOptions.AudibleIV}");
+
+				if (string.IsNullOrEmpty(DownloadOptions.AudibleIV))
+					await File.WriteAllTextAsync(keyPath, $"ActivationBytes={DownloadOptions.AudibleKey}");
+				else
+					await File.WriteAllTextAsync(keyPath, $"Key={DownloadOptions.AudibleKey}{Environment.NewLine}IV={DownloadOptions.AudibleIV}");
 
 				OnFileCreated(aaxPath);
 				OnFileCreated(keyPath);

Source/AaxDecrypter/IDownloadOptions.cs

@@ -21,7 +21,14 @@ namespace AaxDecrypter
         long DownloadSpeedBps { get; }
         ChapterInfo ChapterInfo { get; }
         bool FixupFile { get; }
-        NAudio.Lame.LameConfig LameConfig { get; }
+		string AudibleProductId { get; }
+		string Title { get; }
+		string Subtitle { get; }
+		string Publisher { get; }
+		string Language { get; }
+		string SeriesName { get; }
+		float? SeriesNumber { get; }
+		NAudio.Lame.LameConfig LameConfig { get; }
         bool Downsample { get; }
         bool MatchSourceBitrate { get; }
         bool MoveMoovToBeginning { get; }

Source/AaxDecrypter/MpegUtil.cs

@@ -1,4 +1,5 @@
 using AAXClean;
+using AAXClean.Codecs;
 using NAudio.Lame;
 using System;
 
@@ -6,7 +7,13 @@ namespace AaxDecrypter
 {
 	public static class MpegUtil
 	{
-		public static void ConfigureLameOptions(Mp4File mp4File, LameConfig lameConfig, bool downsample, bool matchSourceBitrate)
+		private const string TagDomain = "com.pilabor.tone";
+		public static void ConfigureLameOptions(
+			Mp4File mp4File,
+			LameConfig lameConfig,
+			bool downsample,
+			bool matchSourceBitrate,
+			ChapterInfo chapters)
 		{
 			double bitrateMultiple = 1;
 
@@ -36,6 +43,27 @@ namespace AaxDecrypter
 				else if (lameConfig.VBR == VBRMode.ABR)
 					lameConfig.ABRRateKbps = kbps;
 			}
+
+			//Setup metadata tags
+			lameConfig.ID3 = mp4File.AppleTags.ToIDTags();
+
+			if (mp4File.AppleTags.AppleListBox.GetFreeformTagString(TagDomain, "SUBTITLE") is string subtitle)
+				lameConfig.ID3.Subtitle = subtitle;
+
+			if (mp4File.AppleTags.AppleListBox.GetFreeformTagString(TagDomain, "LANGUAGE") is string lang)
+				lameConfig.ID3.UserDefinedText.Add("LANGUAGE", lang);
+
+			if (mp4File.AppleTags.AppleListBox.GetFreeformTagString(TagDomain, "SERIES") is string series)
+				lameConfig.ID3.UserDefinedText.Add("SERIES", series);
+
+			if (mp4File.AppleTags.AppleListBox.GetFreeformTagString(TagDomain, "PART") is string part)
+				lameConfig.ID3.UserDefinedText.Add("PART", part);
+
+			if (chapters?.Count > 0)
+			{
+				var cue = Cue.CreateContents(lameConfig.ID3.Title + ".mp3", chapters);
+				lameConfig.ID3.UserDefinedText.Add("CUESHEET", cue);
+			}
 		}
 	}
 }

Source/AaxDecrypter/NetworkFileStream.cs

@@ -14,7 +14,6 @@ namespace AaxDecrypter
 	public class NetworkFileStream : Stream, IUpdatable
 	{
 		public event EventHandler Updated;
-		public event EventHandler DownloadCompleted;
 
 		#region Public Properties
 
@@ -41,6 +40,9 @@ namespace AaxDecrypter
 		[JsonIgnore]
 		public bool IsCancelled => _cancellationSource.IsCancellationRequested;
 
+		[JsonIgnore]
+		public Task DownloadTask { get; private set; }
+
 		private long _speedLimit = 0;
 		/// <summary>bytes per second</summary>
 		public long SpeedLimit { get => _speedLimit; set => _speedLimit = value <= 0 ? 0 : Math.Max(value, MIN_BYTES_PER_SECOND); }
@@ -52,7 +54,6 @@ namespace AaxDecrypter
 		private FileStream _readFile { get; }
 		private CancellationTokenSource _cancellationSource { get; } = new();
 		private EventWaitHandle _downloadedPiece { get; set; }
-		private Task _backgroundDownloadTask { get; set; }
 
 		#endregion
 
@@ -126,9 +127,11 @@ namespace AaxDecrypter
 		{
 			ArgumentValidator.EnsureNotNullOrWhiteSpace(uriToSameFile?.AbsoluteUri, nameof(uriToSameFile));
 
+			if (Path.GetFileName(uriToSameFile.LocalPath) != Path.GetFileName(Uri.LocalPath))
+				throw new ArgumentException($"New uri to the same file must have the same file name.");
 			if (uriToSameFile.Host != Uri.Host)
 				throw new ArgumentException($"New uri to the same file must have the same host.\r\n Old Host :{Uri.Host}\r\nNew Host: {uriToSameFile.Host}");
-			if (_backgroundDownloadTask is not null)
+			if (DownloadTask is not null)
 				throw new InvalidOperationException("Cannot change Uri after download has started.");
 
 			Uri = uriToSameFile;
@@ -141,7 +144,7 @@ namespace AaxDecrypter
 		{
 			if (ContentLength != 0 && WritePosition == ContentLength)
 			{
-				_backgroundDownloadTask = Task.CompletedTask;
+				DownloadTask = Task.CompletedTask;
 				return;
 			}
 
@@ -167,7 +170,8 @@ namespace AaxDecrypter
 			_downloadedPiece = new EventWaitHandle(false, EventResetMode.AutoReset);
 
 			//Download the file in the background.
-			_backgroundDownloadTask = Task.Run(() => DownloadFile(networkStream), _cancellationSource.Token);
+
+			DownloadTask = Task.Run(() => DownloadFile(networkStream), _cancellationSource.Token);
 		}
 
 		/// <summary> Download <see cref="Uri"/> to <see cref="SaveFilePath"/>.</summary>
@@ -234,7 +238,6 @@ namespace AaxDecrypter
 				_writeFile.Close();
 				_downloadedPiece.Set();
 				OnUpdate();
-				DownloadCompleted?.Invoke(this, null);
 			}
 		}
 
@@ -256,7 +259,7 @@ namespace AaxDecrypter
 		{
 			get
 			{
-				if (_backgroundDownloadTask is null)
+				if (DownloadTask is null)
 					throw new InvalidOperationException($"Background downloader must first be started by calling {nameof(BeginDownloadingAsync)}");
 				return ContentLength;
 			}
@@ -280,7 +283,7 @@ namespace AaxDecrypter
 
 		public override int Read(byte[] buffer, int offset, int count)
 		{
-			if (_backgroundDownloadTask is null)
+			if (DownloadTask is null)
 				throw new InvalidOperationException($"Background downloader must first be started by calling {nameof(BeginDownloadingAsync)}");
 
 			var toRead = Math.Min(count, Length - Position);
@@ -306,7 +309,7 @@ namespace AaxDecrypter
 		private void WaitToPosition(long requiredPosition)
 		{
 			while (WritePosition < requiredPosition
-				&& _backgroundDownloadTask?.IsCompleted is false
+				&& DownloadTask?.IsCompleted is false
 				&& !IsCancelled)
 			{
 				_downloadedPiece.WaitOne(50);
@@ -326,7 +329,7 @@ namespace AaxDecrypter
 			if (disposing && !disposed)
 			{
 				_cancellationSource.Cancel();
-				_backgroundDownloadTask?.GetAwaiter().GetResult();
+				DownloadTask?.GetAwaiter().GetResult();
 				_downloadedPiece?.Dispose();
 				_cancellationSource?.Dispose();
 				_readFile.Dispose();

Source/AaxDecrypter/UnencryptedAudiobookDownloader.cs

@@ -26,11 +26,7 @@ namespace AaxDecrypter
 
 		protected override async Task<bool> Step_DownloadAndDecryptAudiobookAsync()
 		{
-			TaskCompletionSource completionSource = new();
+			await InputFileStream.DownloadTask;
-
-			InputFileStream.DownloadCompleted += (_, _) => completionSource.SetResult();
-
-			await completionSource.Task;
 
 			if (IsCanceled)
 				return false;

Source/AppScaffolding/AppScaffolding.csproj

@@ -1,12 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
-    <Version>10.3.1.1</Version>
+    <Version>11.6.4.1</Version>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Octokit" Version="6.0.0" />
+    <PackageReference Include="Octokit" Version="13.0.1" />
-    <PackageReference Include="Serilog.Sinks.ZipFile" Version="1.0.1" />
+    <!-- Do not remove unused Serilog.Sinks -->
+    <!-- Only ZipFile sink is currently used. By user request (June 2024) others packages are included for experimental use. -->
+    <PackageReference Include="Serilog.Sinks.Console" Version="6.0.0" />
+    <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
+    <PackageReference Include="Serilog.Sinks.ZipFile" Version="3.1.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ApplicationServices\ApplicationServices.csproj" />
@@ -19,4 +23,4 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <DebugType>embedded</DebugType>
   </PropertyGroup>
-</Project>
+</Project>

Source/AppScaffolding/LibationScaffolding.cs

@@ -1,21 +1,22 @@
-using System;
+using ApplicationServices;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using ApplicationServices;
 using AudibleUtilities;
-using Dinah.Core;
 using Dinah.Core.IO;
 using Dinah.Core.Logging;
 using LibationFileManager;
-using System.Runtime.InteropServices;
+using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Serilog;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
 
 namespace AppScaffolding
 {
-	public enum ReleaseIdentifier
+    public enum ReleaseIdentifier
 	{
 		None,
 		WindowsClassic = OS.Windows | Variety.Classic | Architecture.X64,
@@ -43,21 +44,6 @@ namespace AppScaffolding
 		public static ReleaseIdentifier ReleaseIdentifier { get; private set; }
 		public static Variety Variety { get; private set; }
 
-		public static void SetReleaseIdentifier(Variety varietyType)
-		{
-			Variety = Enum.IsDefined(varietyType) ? varietyType : Variety.None;
-
-			var releaseID = (ReleaseIdentifier)((int)varietyType | (int)Configuration.OS | (int)RuntimeInformation.ProcessArchitecture);
-
-			if (Enum.IsDefined(releaseID))
-				ReleaseIdentifier = releaseID;
-			else
-			{
-				ReleaseIdentifier = ReleaseIdentifier.None;
-				Serilog.Log.Logger.Warning("Unknown release identifier @{DebugInfo}", new { Variety = varietyType, Configuration.OS, RuntimeInformation.ProcessArchitecture });
-			}
-		}
-
 		// AppScaffolding
 		private static Assembly _executingAssembly;
 		private static Assembly ExecutingAssembly
@@ -102,11 +88,18 @@ namespace AppScaffolding
 			//
 
 			Migrations.migrate_to_v6_6_9(config);
-		}
+            Migrations.migrate_to_v11_5_0(config);
+        }
 
 		/// <summary>Initialize logging. Wire-up events. Run after migration</summary>
-		public static void RunPostMigrationScaffolding(Configuration config)
+		public static void RunPostMigrationScaffolding(Variety variety, Configuration config)
 		{
+			Variety = Enum.IsDefined(variety) ? variety : Variety.None;
+
+			var releaseID = (ReleaseIdentifier)((int)variety | (int)Configuration.OS | (int)RuntimeInformation.ProcessArchitecture);
+
+			ReleaseIdentifier = Enum.IsDefined(releaseID) ? releaseID : ReleaseIdentifier.None;
+
 			ensureSerilogConfig(config);
 			configureLogging(config);
 			logStartupState(config);
@@ -133,6 +126,9 @@ namespace AppScaffolding
 				{ "MinimumLevel", "Information" },
 				{ "WriteTo", new JArray
 					{
+						// ABOUT SINKS
+						// Only ZipFile sink is currently used. By user request (June 2024) others packages are included for experimental use.
+
 						// new JObject { {"Name", "Console" } }, // this has caused more problems than it's solved
 						new JObject
 						{
@@ -236,12 +232,20 @@ namespace AppScaffolding
 
 			// begin logging session with a form feed
 			Log.Logger.Information("\r\n\f");
-			Log.Logger.Information("Begin. {@DebugInfo}", new
+
+			static int fileCount(FileManager.LongPath longPath)
+            {
+                try { return FileManager.FileUtility.SaferEnumerateFiles(longPath).Count(); }
+                catch { return -1; }
+            }
+
+            Log.Logger.Information("Begin. {@DebugInfo}", new
 			{
 				AppName = EntryAssembly.GetName().Name,
 				Version = BuildVersion.ToString(),
 				ReleaseIdentifier,
 				Configuration.OS,
+                Environment.OSVersion,
                 InteropFactory.InteropFunctionsType,
                 Mode = mode,
 				LogLevel_Verbose_Enabled = Log.Logger.IsVerboseEnabled(),
@@ -251,6 +255,7 @@ namespace AppScaffolding
 				LogLevel_Error_Enabled = Log.Logger.IsErrorEnabled(),
 				LogLevel_Fatal_Enabled = Log.Logger.IsFatalEnabled(),
 
+                config.AutoScan,
                 config.BetaOptIn,
                 config.UseCoverAsFolderIcon,
                 config.LibationFiles,
@@ -259,10 +264,12 @@ namespace AppScaffolding
 				config.InProgress,
 
 				AudibleFileStorage.DownloadsInProgressDirectory,
-				DownloadsInProgressFiles = FileManager.FileUtility.SaferEnumerateFiles(AudibleFileStorage.DownloadsInProgressDirectory).Count(),
+				DownloadsInProgressFiles = fileCount(AudibleFileStorage.DownloadsInProgressDirectory),
 
 				AudibleFileStorage.DecryptInProgressDirectory,
-				DecryptInProgressFiles = FileManager.FileUtility.SaferEnumerateFiles(AudibleFileStorage.DecryptInProgressDirectory).Count(),
+				DecryptInProgressFiles = fileCount(AudibleFileStorage.DecryptInProgressDirectory),
+
+                disableIPv6 = AppContext.TryGetSwitch("System.Net.DisableIPv6", out bool disableIPv6Value),
 			});
 
             if (InteropFactory.InteropFunctionsType is null)
@@ -399,5 +406,55 @@ namespace AppScaffolding
 				UNSAFE_MigrationHelper.Settings_AddUniqueToArray("Serilog.Enrich", "WithExceptionDetails");
 			}
 		}
-	}
+
+        class FilterState_6_6_9
+        {
+            public bool UseDefault { get; set; }
+            public List<string> Filters { get; set; } = new();
+        }
+
+        public static void migrate_to_v11_5_0(Configuration config)
+        {
+            // Read file, but convert old format to new (with Name field) as necessary.
+            if (!File.Exists(QuickFilters.JsonFile))
+            {
+                QuickFilters.InMemoryState = new();
+                return;
+            }
+
+            try
+            {
+                if (JsonConvert.DeserializeObject<QuickFilters.FilterState>(File.ReadAllText(QuickFilters.JsonFile))
+                    is QuickFilters.FilterState inMemState)
+                {
+                    QuickFilters.InMemoryState = inMemState;
+                    return;
+                }
+            }
+            catch
+            {
+                // Eat
+            }
+
+            try
+            {
+                if (JsonConvert.DeserializeObject<FilterState_6_6_9>(File.ReadAllText(QuickFilters.JsonFile))
+                    is FilterState_6_6_9 inMemState)
+                {
+                    // Copy old structure to new.
+                    QuickFilters.InMemoryState = new();
+                    QuickFilters.InMemoryState.UseDefault = inMemState.UseDefault;
+                    foreach (var oldFilter in inMemState.Filters)
+                        QuickFilters.InMemoryState.Filters.Add(new QuickFilters.NamedFilter(oldFilter, null));
+
+                    return;
+                }
+                Debug.Assert(false, "Should not get here, QuickFilters.json deserialization issue");
+            }
+            catch
+            {
+				// Eat
+            }
+        }
+    }
 }

Source/ApplicationServices/ApplicationServices.csproj

@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="CsvHelper" Version="30.0.1" />
+    <PackageReference Include="CsvHelper" Version="33.0.1" />
-    <PackageReference Include="NPOI" Version="2.6.0" />
+    <PackageReference Include="NPOI" Version="2.7.2" />
   </ItemGroup>
 
   <ItemGroup>

Source/ApplicationServices/BulkSetDownloadStatus.cs

@@ -10,7 +10,7 @@ namespace ApplicationServices
 {
     public class BulkSetDownloadStatus
     {
-        private List<(string message, LiberatedStatus newStatus, IEnumerable<Book> Books)> actionSets { get; } = new();
+        private List<(string message, LiberatedStatus newStatus, IEnumerable<LibraryBook> LibraryBooks)> actionSets { get; } = new();
 
         public int Count => actionSets.Count;
 
@@ -33,7 +33,7 @@ namespace ApplicationServices
             var bookExistsList = _libraryBooks
                 .Select(libraryBook => new
                 {
-                    libraryBook.Book,
+					LibraryBook = libraryBook,
                     FileExists = AudibleFileStorage.Audio.GetPath(libraryBook.Book.AudibleProductId) is not null
                 })
                 .ToList();
@@ -41,8 +41,8 @@ namespace ApplicationServices
             if (_setDownloaded)
             {
                 var books2change = bookExistsList
-                    .Where(a => a.FileExists && a.Book.UserDefinedItem.BookStatus != LiberatedStatus.Liberated)
+                    .Where(a => a.FileExists && a.LibraryBook.Book.UserDefinedItem.BookStatus != LiberatedStatus.Liberated)
-                    .Select(a => a.Book)
+                    .Select(a => a.LibraryBook)
                     .ToList();
 
                 if (books2change.Any())
@@ -55,8 +55,8 @@ namespace ApplicationServices
             if (_setNotDownloaded)
             {
                 var books2change = bookExistsList
-                    .Where(a => !a.FileExists && a.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated)
+                    .Where(a => !a.FileExists && a.LibraryBook.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated)
-                    .Select(a => a.Book)
+                    .Select(a => a.LibraryBook)
                     .ToList();
 
                 if (books2change.Any())
@@ -72,7 +72,7 @@ namespace ApplicationServices
         public void Execute()
         {
             foreach (var a in actionSets)
-                a.Books.UpdateBookStatus(a.newStatus);
+                a.LibraryBooks.UpdateBookStatus(a.newStatus);
         }
     }
 }

Source/ApplicationServices/LibraryCommands.cs

@@ -119,9 +119,16 @@ namespace ApplicationServices
 
                 logTime($"pre {nameof(scanAccountsAsync)} all");
                 var libraryOptions = new LibraryOptions
-                {
+				{
-                    ResponseGroups = LibraryOptions.ResponseGroupOptions.ALL_OPTIONS,
+					ResponseGroups
-                    ImageSizes = LibraryOptions.ImageSizeOptions._500 | LibraryOptions.ImageSizeOptions._1215
+					    = LibraryOptions.ResponseGroupOptions.Rating | LibraryOptions.ResponseGroupOptions.Media
+					    | LibraryOptions.ResponseGroupOptions.Relationships | LibraryOptions.ResponseGroupOptions.ProductDesc
+					    | LibraryOptions.ResponseGroupOptions.Contributors | LibraryOptions.ResponseGroupOptions.ProvidedReview
+					    | LibraryOptions.ResponseGroupOptions.ProductPlans | LibraryOptions.ResponseGroupOptions.Series
+					    | LibraryOptions.ResponseGroupOptions.CategoryLadders | LibraryOptions.ResponseGroupOptions.ProductExtendedAttrs
+					    | LibraryOptions.ResponseGroupOptions.PdfUrl | LibraryOptions.ResponseGroupOptions.OriginAsin
+                        | LibraryOptions.ResponseGroupOptions.IsFinished,
+					ImageSizes = LibraryOptions.ImageSizeOptions._500 | LibraryOptions.ImageSizeOptions._1215
                 };
                 var importItems = await scanAccountsAsync(apiExtendedfunc, accounts, libraryOptions);
                 logTime($"post {nameof(scanAccountsAsync)} all");
@@ -446,25 +453,25 @@ namespace ApplicationServices
         /// <summary>
         /// Occurs when the size of the library does not change but book(s) details do. Especially when <see cref="UserDefinedItem.Tags"/>, <see cref="UserDefinedItem.BookStatus"/>, or <see cref="UserDefinedItem.PdfStatus"/> changed values are successfully persisted.
         /// </summary>
-        public static event EventHandler<IEnumerable<Book>> BookUserDefinedItemCommitted;
+        public static event EventHandler<IEnumerable<LibraryBook>> BookUserDefinedItemCommitted;
 
         #region Update book details
         public static int UpdateUserDefinedItem(
-            this Book book,
+            this LibraryBook lb,
             string tags = null,
             LiberatedStatus? bookStatus = null,
             LiberatedStatus? pdfStatus = null,
             Rating rating = null)
-            => new[] { book }.UpdateUserDefinedItem(tags, bookStatus, pdfStatus, rating);
+            => new[] { lb }.UpdateUserDefinedItem(tags, bookStatus, pdfStatus, rating);
 
         public static int UpdateUserDefinedItem(
-            this IEnumerable<Book> books,
+            this IEnumerable<LibraryBook> lb,
             string tags = null,
             LiberatedStatus? bookStatus = null,
             LiberatedStatus? pdfStatus = null,
             Rating rating = null)
             => updateUserDefinedItem(
-                books,
+                lb,
                 udi => {
                     // blank tags are expected. null tags are not
                     if (tags is not null)
@@ -480,66 +487,52 @@ namespace ApplicationServices
                         udi.UpdateRating(rating.OverallRating, rating.PerformanceRating, rating.StoryRating);
 				});
 
-        public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus, Version libationVersion)
+        public static int UpdateBookStatus(this LibraryBook lb, LiberatedStatus bookStatus, Version libationVersion)
-            => book.UpdateUserDefinedItem(udi => { udi.BookStatus = bookStatus; udi.SetLastDownloaded(libationVersion); });
+            => lb.UpdateUserDefinedItem(udi => { udi.BookStatus = bookStatus; udi.SetLastDownloaded(libationVersion); });
-        public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus)
+
-            => book.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
-        public static int UpdateBookStatus(this IEnumerable<Book> books, LiberatedStatus bookStatus)
-            => books.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
         public static int UpdateBookStatus(this LibraryBook libraryBook, LiberatedStatus bookStatus)
             => libraryBook.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
         public static int UpdateBookStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus bookStatus)
             => libraryBooks.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
 
-        public static int UpdatePdfStatus(this Book book, LiberatedStatus pdfStatus)
-            => book.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
-        public static int UpdatePdfStatus(this IEnumerable<Book> books, LiberatedStatus pdfStatus)
-            => books.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
         public static int UpdatePdfStatus(this LibraryBook libraryBook, LiberatedStatus pdfStatus)
             => libraryBook.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
         public static int UpdatePdfStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus pdfStatus)
             => libraryBooks.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
 
-        public static int UpdateTags(this Book book, string tags)
-            => book.UpdateUserDefinedItem(udi => udi.Tags = tags);
-        public static int UpdateTags(this IEnumerable<Book> books, string tags)
-            => books.UpdateUserDefinedItem(udi => udi.Tags = tags);
         public static int UpdateTags(this LibraryBook libraryBook, string tags)
             => libraryBook.UpdateUserDefinedItem(udi => udi.Tags = tags);
         public static int UpdateTags(this IEnumerable<LibraryBook> libraryBooks, string tags)
             => libraryBooks.UpdateUserDefinedItem(udi => udi.Tags = tags);
 
         public static int UpdateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action)
-            => libraryBook.Book.updateUserDefinedItem(action);
+            => libraryBook.updateUserDefinedItem(action);
         public static int UpdateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
-            => libraryBooks.Select(lb => lb.Book).updateUserDefinedItem(action);
+            => libraryBooks.updateUserDefinedItem(action);
 
-        public static int UpdateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => book.updateUserDefinedItem(action);
+        private static int updateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action) => new[] { libraryBook }.updateUserDefinedItem(action);
-        public static int UpdateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action) => books.updateUserDefinedItem(action);
+        private static int updateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
-
-        private static int updateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => new[] { book }.updateUserDefinedItem(action);
-        private static int updateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action)
         {
             try
             {
-                if (books is null || !books.Any())
+                if (libraryBooks is null || !libraryBooks.Any())
                     return 0;
 
-                foreach (var book in books)
+                foreach (var book in libraryBooks)
-                    action?.Invoke(book.UserDefinedItem);
+                    action?.Invoke(book.Book.UserDefinedItem);
 
                 using var context = DbContexts.GetContext();
 
                 // Attach() NoTracking entities before SaveChanges()
-                foreach (var book in books)
+                foreach (var book in libraryBooks)
                 {
-                    context.Attach(book.UserDefinedItem).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                    context.Attach(book.Book.UserDefinedItem).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
-                    context.Attach(book.UserDefinedItem.Rating).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                    context.Attach(book.Book.UserDefinedItem.Rating).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
                 }
 
                 var qtyChanges = context.SaveChanges();
                 if (qtyChanges > 0)
-                    BookUserDefinedItemCommitted?.Invoke(null, books);
+                    BookUserDefinedItemCommitted?.Invoke(null, libraryBooks);
 
                 return qtyChanges;
             }

Source/ApplicationServices/LibraryExporter.cs

@@ -35,6 +35,9 @@ namespace ApplicationServices
 		[Name("Title")]
 		public string Title { get; set; }
 
+		[Name("Subtitle")]
+		public string Subtitle { get; set; }
+
 		[Name("Authors")]
 		public string AuthorNames { get; set; }
 
@@ -112,6 +115,9 @@ namespace ApplicationServices
 
 		[Name("LastDownloadedVersion")]
         public string LastDownloadedVersion { get; set; }
+
+		[Name("IsFinished")]
+        public bool IsFinished { get; set; }
     }
 	public static class LibToDtos
 	{
@@ -123,6 +129,7 @@ namespace ApplicationServices
 				AudibleProductId = a.Book.AudibleProductId,
 				Locale = a.Book.Locale,
 				Title = a.Book.Title,
+				Subtitle = a.Book.Subtitle,
 				AuthorNames = a.Book.AuthorNames(),
 				NarratorNames = a.Book.NarratorNames(),
 				LengthInMinutes = a.Book.LengthInMinutes,
@@ -137,7 +144,7 @@ namespace ApplicationServices
 				PictureId = a.Book.PictureId,
 				IsAbridged = a.Book.IsAbridged,
 				DatePublished = a.Book.DatePublished,
-				CategoriesNames = a.Book.CategoriesNames().Any() ? a.Book.CategoriesNames().Aggregate((a, b) => $"{a}, {b}") : "",
+				CategoriesNames = a.Book.LowestCategoryNames().Any() ? a.Book.LowestCategoryNames().Aggregate((a, b) => $"{a}, {b}") : "",
 				MyRatingOverall = a.Book.UserDefinedItem.Rating.OverallRating,
 				MyRatingPerformance = a.Book.UserDefinedItem.Rating.PerformanceRating,
 				MyRatingStory = a.Book.UserDefinedItem.Rating.StoryRating,
@@ -149,8 +156,8 @@ namespace ApplicationServices
 				Language = a.Book.Language,
 				LastDownloaded = a.Book.UserDefinedItem.LastDownloaded,
 				LastDownloadedVersion = a.Book.UserDefinedItem.LastDownloadedVersion?.ToString() ?? "",
-
+                IsFinished = a.Book.UserDefinedItem.IsFinished
-			}).ToList();
+            }).ToList();
 	}
 	public static class LibraryExporter
 	{
@@ -198,6 +205,7 @@ namespace ApplicationServices
 				nameof(ExportDto.AudibleProductId),
 				nameof(ExportDto.Locale),
 				nameof(ExportDto.Title),
+				nameof(ExportDto.Subtitle),
 				nameof(ExportDto.AuthorNames),
 				nameof(ExportDto.NarratorNames),
 				nameof(ExportDto.LengthInMinutes),
@@ -224,6 +232,7 @@ namespace ApplicationServices
                 nameof(ExportDto.Language),
                 nameof(ExportDto.LastDownloaded),
                 nameof(ExportDto.LastDownloadedVersion),
+                nameof(ExportDto.IsFinished)
             };
 			var col = 0;
 			foreach (var c in columns)
@@ -256,6 +265,7 @@ namespace ApplicationServices
 				row.CreateCell(col++).SetCellValue(dto.AudibleProductId);
 				row.CreateCell(col++).SetCellValue(dto.Locale);
 				row.CreateCell(col++).SetCellValue(dto.Title);
+				row.CreateCell(col++).SetCellValue(dto.Subtitle);
 				row.CreateCell(col++).SetCellValue(dto.AuthorNames);
 				row.CreateCell(col++).SetCellValue(dto.NarratorNames);
 				row.CreateCell(col++).SetCellValue(dto.LengthInMinutes);
@@ -300,6 +310,7 @@ namespace ApplicationServices
 				}
 
                 row.CreateCell(++col).SetCellValue(dto.LastDownloadedVersion);
+                row.CreateCell(++col).SetCellValue(dto.IsFinished);
 
                 rowIndex++;
 			}

Source/ApplicationServices/RecordExporter.cs

@@ -108,7 +108,7 @@ namespace ApplicationServices
 
 			var recordsObj = new JObject
 			{
-				{ "title", libraryBook.Book.Title},
+				{ "title", libraryBook.Book.TitleWithSubtitle},
 				{ "asin", libraryBook.Book.AudibleProductId},
 				{ "exportTime", DateTime.Now},
 				{ "records", JArray.FromObject(recordsEx) }

Source/ApplicationServices/SearchEngineCommands.cs

@@ -34,7 +34,7 @@ namespace ApplicationServices
 		#region Update
 		private static bool isUpdating;
 
-		public static void UpdateBooks(IEnumerable<Book> books)
+		public static void UpdateBooks(IEnumerable<LibraryBook> books)
 		{
 			// Semi-arbitrary. At some point it's more worth it to do a full re-index than to do one offs.
 			// I did not benchmark before choosing the number here
@@ -49,10 +49,10 @@ namespace ApplicationServices
 
 		public static void FullReIndex() => performSafeCommand(fullReIndex);
 
-		internal static void UpdateUserDefinedItems(Book book) => performSafeCommand(e =>
+		internal static void UpdateUserDefinedItems(LibraryBook book) => performSafeCommand(e =>
 			{
 				e.UpdateLiberatedStatus(book);
-				e.UpdateTags(book.AudibleProductId, book.UserDefinedItem.Tags);
+				e.UpdateTags(book.Book.AudibleProductId, book.Book.UserDefinedItem.Tags);
 				e.UpdateUserRatings(book);
 			}
 		);

Source/AudibleUtilities/ApiExtended.cs

@@ -207,7 +207,11 @@ namespace AudibleUtilities
 			try
 			{
 				var sw = Stopwatch.StartNew();
-				var items = await Api.GetCatalogProductsAsync(asins, CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
+				var items = await Api.GetCatalogProductsAsync(asins, CatalogOptions.ResponseGroupOptions.Rating | CatalogOptions.ResponseGroupOptions.Media
+					| CatalogOptions.ResponseGroupOptions.Relationships | CatalogOptions.ResponseGroupOptions.ProductDesc
+					| CatalogOptions.ResponseGroupOptions.Contributors | CatalogOptions.ResponseGroupOptions.ProvidedReview
+					| CatalogOptions.ResponseGroupOptions.ProductPlans | CatalogOptions.ResponseGroupOptions.Series
+					| CatalogOptions.ResponseGroupOptions.CategoryLadders | CatalogOptions.ResponseGroupOptions.ProductExtendedAttrs);
 				sw.Stop();
 
 				Serilog.Log.Logger.Debug($"Batch {batchNum} End: Retrieved {items.Count} items in {sw.ElapsedMilliseconds} ms");

Source/AudibleUtilities/AudibleApiValidators.cs

@@ -90,8 +90,10 @@ namespace AudibleUtilities
 			var distinct = items.GetSeriesDistinct();
 			if (distinct.Any(s => s.SeriesId is null))
 				exceptions.Add(new ArgumentException($"Collection contains {nameof(Item.Series)} with null {nameof(Series.SeriesId)}", nameof(items)));
-			if (distinct.Any(s => s.SeriesName is null))
+
-				exceptions.Add(new ArgumentException($"Collection contains {nameof(Item.Series)} with null {nameof(Series.SeriesName)}", nameof(items)));
+			//// unfortunately, a user has a series with no name
+			//if (distinct.Any(s => s.SeriesName is null))
+			//    exceptions.Add(new ArgumentException($"Collection contains {nameof(Item.Series)} with null {nameof(Series.SeriesName)}", nameof(items)));
 
 			return exceptions;
 		}

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AudibleApi" Version="8.4.1.1" />
+    <PackageReference Include="AudibleApi" Version="9.3.0.1" />
   </ItemGroup>
 
   <ItemGroup>

Source/AudibleUtilities/Mkb79Auth.cs

@@ -43,6 +43,9 @@ namespace AudibleUtilities
 		[JsonProperty("locale_code")]
 		public string LocaleCode { get; private set; }
 
+		[JsonProperty("with_username")]
+		public bool WithUsername { get; private set; }
+
 		[JsonProperty("activation_bytes")]
 		public string ActivationBytes { get; private set; }
 
@@ -68,7 +71,8 @@ namespace AudibleUtilities
 		}
 
 		[JsonIgnore] public ISystemDateTime SystemDateTime { get; } = new SystemDateTime();
-		[JsonIgnore] public Locale Locale => Localization.Get(LocaleCode);
+		[JsonIgnore]
+		public Locale Locale => Localization.Locales.Where(l => l.WithUsername == WithUsername).Single(l => l.CountryCode == LocaleCode);
 		[JsonIgnore] public string DeviceSerialNumber => DeviceInfo.DeviceSerialNumber;
 		[JsonIgnore] public string DeviceType => DeviceInfo.DeviceType;
 		[JsonIgnore] public string AmazonAccountId => CustomerInfo.UserId;
@@ -177,6 +181,7 @@ namespace AudibleUtilities
 				DevicePrivateKey = account.IdentityTokens.PrivateKey,
 				AccessTokenExpires = account.IdentityTokens.ExistingAccessToken.Expires,
 				LocaleCode = account.Locale.CountryCode,
+				WithUsername = account.Locale.WithUsername,
 				RefreshToken = account.IdentityTokens.RefreshToken.Value,				
 				StoreAuthenticationCookie = account.IdentityTokens.StoreAuthenticationCookie,
 				WebsiteCookies = new(account.IdentityTokens.Cookies),

Source/DataLayer/Configurations/BookCategoryConfig.cs

@@ -0,0 +1,26 @@
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Microsoft.EntityFrameworkCore;
+
+namespace DataLayer.Configurations
+{
+	internal class BookCategoryConfig : IEntityTypeConfiguration<BookCategory>
+	{
+		public void Configure(EntityTypeBuilder<BookCategory> entity)
+		{
+			entity.HasKey(bc => new { bc.BookId, bc.CategoryLadderId });
+
+			entity.HasIndex(bc => bc.BookId);
+			entity.HasIndex(bc => bc.CategoryLadderId);
+
+			entity
+				.HasOne(bc => bc.Book)
+				.WithMany(b => b.CategoriesLink)
+				.HasForeignKey(bc => bc.BookId);
+
+			entity
+				.HasOne(bc => bc.CategoryLadder)
+				.WithMany(c => c.BooksLink)
+				.HasForeignKey(bc => bc.CategoryLadderId);
+		}
+	}
+}

Source/DataLayer/Configurations/BookConfig.cs

@@ -20,10 +20,8 @@ namespace DataLayer.Configurations
             entity.Ignore(nameof(Book.Authors));
             entity.Ignore(nameof(Book.Narrators));
             entity.Ignore(nameof(Book.AudioFormat));
-            //// these don't seem to matter
+            entity.Ignore(nameof(Book.TitleWithSubtitle));
-            //entity.Ignore(nameof(Book.AuthorNames));
+            entity.Ignore(b => b.Categories);
-            //entity.Ignore(nameof(Book.NarratorNames));
-            //entity.Ignore(nameof(Book.HasPdfs));
 
             // OwnsMany: "Can only ever appear on navigation properties of other entity types.
             //  Are automatically loaded, and can only be tracked by a DbContext alongside their owner."
@@ -57,23 +55,6 @@ namespace DataLayer.Configurations
                     // owns it 1:1, store in same table
                     b_udi.OwnsOne(udi => udi.Rating);
                 });
-
-            entity
-                .Metadata
-                .FindNavigation(nameof(Book.ContributorsLink))
-                // PropertyAccessMode.Field : Contributions is a get-only property, not a field, so use its backing field
-                .SetPropertyAccessMode(PropertyAccessMode.Field);
-
-            entity
-                .Metadata
-                .FindNavigation(nameof(Book.SeriesLink))
-                // PropertyAccessMode.Field : Series is a get-only property, not a field, so use its backing field
-                .SetPropertyAccessMode(PropertyAccessMode.Field);
-
-            entity
-                .HasOne(b => b.Category)
-                .WithMany()
-                .HasForeignKey(b => b.CategoryId);
         }
     }
 }

Source/DataLayer/Configurations/CategoryConfig.cs

@@ -10,8 +10,11 @@ namespace DataLayer.Configurations
             entity.HasKey(c => c.CategoryId);
             entity.HasIndex(c => c.AudibleCategoryId);
 
-            // seeds go here. examples in Dinah.EntityFrameworkCore.Tests\DbContextFactoryExample.cs
+            entity.Ignore(c => c.CategoryLadders);
-            entity.HasData(Category.GetEmpty());
+
+            entity
+                .HasMany(e => e._categoryLadders)
+                .WithMany(e => e._categories);
         }
     }
 }

Source/DataLayer/Configurations/CategoryLadderConfig.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Microsoft.EntityFrameworkCore;
+
+namespace DataLayer.Configurations
+{
+	internal class CategoryLadderConfig : IEntityTypeConfiguration<CategoryLadder>
+	{
+		public void Configure(EntityTypeBuilder<CategoryLadder> entity)
+		{
+			entity.HasKey(cl => cl.CategoryLadderId);
+
+			entity.Ignore(cl => cl.Categories);
+
+			entity
+				.HasMany(cl => cl._categories)
+				.WithMany(c => c._categoryLadders);
+
+			entity
+				.Metadata
+				.FindNavigation(nameof(CategoryLadder.BooksLink))
+				.SetPropertyAccessMode(PropertyAccessMode.Field);
+		}
+	}
+}

Source/DataLayer/DataLayer.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -10,14 +10,14 @@
   </PropertyGroup>
   
   <ItemGroup>
-    <PackageReference Include="Dinah.Core" Version="7.2.2.1" />
+    <PackageReference Include="Dinah.Core" Version="9.0.0.1" />
-    <PackageReference Include="Dinah.EntityFrameworkCore" Version="7.1.1.1" />
+    <PackageReference Include="Dinah.EntityFrameworkCore" Version="9.0.0.1" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.5">
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="7.0.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.5">
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>

Source/DataLayer/EfClasses/AudioFormat.cs

@@ -13,7 +13,11 @@ namespace DataLayer
         LC_64_22050_stereo = (64L << 18) | (22050 << 2) | 2,
         LC_64_44100_stereo = (64L << 18) | (44100 << 2) | 2,
         LC_128_44100_stereo = (128L << 18) | (44100 << 2) | 2,
-    }
+		AAX_22_32 = LC_32_22050_stereo,
+		AAX_22_64 = LC_64_22050_stereo,
+		AAX_44_64 = LC_64_44100_stereo,
+		AAX_44_128 = LC_128_44100_stereo
+	}
 
     public class AudioFormat : IComparable<AudioFormat>, IComparable
     {

Source/DataLayer/EfClasses/Book.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using Dinah.Core;
 using Microsoft.EntityFrameworkCore;
@@ -34,6 +35,9 @@ namespace DataLayer
         // immutable
         public string AudibleProductId { get; private set; }
         public string Title { get; private set; }
+        public string Subtitle { get; private set; }
+        private string _titleWithSubtitle;
+        public string TitleWithSubtitle => _titleWithSubtitle ??= string.IsNullOrEmpty(Subtitle) ? Title : $"{Title}: {Subtitle}";
         public string Description { get; private set; }
         public int LengthInMinutes { get; private set; }
         public ContentType ContentType { get; private set; }
@@ -52,10 +56,6 @@ namespace DataLayer
         public DateTime? DatePublished { get; private set; }
         public string Language { get; private set; }
 
-        // non-null. use "empty pattern"
-        internal int CategoryId { get; private set; }
-        public Category Category { get; private set; }
-
         // is owned, not optional 1:1
         public UserDefinedItem UserDefinedItem { get; private set; }
 
@@ -70,12 +70,12 @@ namespace DataLayer
         public Book(
             AudibleProductId audibleProductId,
             string title,
+            string subtitle,
             string description,
             int lengthInMinutes,
             ContentType contentType,
-			IEnumerable<Contributor> authors,
+            IEnumerable<Contributor> authors,
-			IEnumerable<Contributor> narrators,
+            IEnumerable<Contributor> narrators,
-			Category category,
             string localeName)
         {
             // validate
@@ -83,7 +83,7 @@ namespace DataLayer
             var productId = audibleProductId.Id;
             ArgumentValidator.EnsureNotNullOrWhiteSpace(productId, nameof(productId));
 
-			// assign as soon as possible. stuff below relies on this
+            // assign as soon as possible. stuff below relies on this
             AudibleProductId = productId;
             Locale = localeName;
 
@@ -91,14 +91,13 @@ namespace DataLayer
 
             // non-ef-ctor init.s
             UserDefinedItem = new UserDefinedItem(this);
-            _contributorsLink = new HashSet<BookContributor>();
+            ContributorsLink = new HashSet<BookContributor>();
+            CategoriesLink = new HashSet<BookCategory>();
             _seriesLink = new HashSet<SeriesBook>();
             _supplements = new HashSet<Supplement>();
 
-			Category = category;
-
             // simple assigns
-            Title = title.Trim() ?? "";
+            UpdateTitle(title, subtitle);
             Description = description?.Trim() ?? "";
             LengthInMinutes = lengthInMinutes;
             ContentType = contentType;
@@ -106,22 +105,24 @@ namespace DataLayer
             // assigns with biz logic
             ReplaceAuthors(authors);
             ReplaceNarrators(narrators);
-		}
+        }
 
-        #region contributors, authors, narrators
+        public void UpdateTitle(string title, string subtitle)
-        // use uninitialised backing fields - this means we can detect if the collection was loaded
+        {
-        private HashSet<BookContributor> _contributorsLink;
+            Title = title?.Trim() ?? "";
-        // i'd like this to be internal but migration throws this exception when i try:
+            Subtitle = subtitle?.Trim() ?? "";
-        //   Value cannot be null.
+            _titleWithSubtitle = null;
-        //   Parameter name: property
+        }
-        public IEnumerable<BookContributor> ContributorsLink
-            => _contributorsLink?
-                .OrderBy(bc => bc.Order)
-                .ToList();
 
-        public IEnumerable<Contributor> Authors => getContributions(Role.Author).Select(bc => bc.Contributor).ToList();
+        public void UpdateLengthInMinutes(int lengthInMinutes)
-        public IEnumerable<Contributor> Narrators => getContributions(Role.Narrator).Select(bc => bc.Contributor).ToList();
+            => LengthInMinutes = lengthInMinutes;
-        public string Publisher => getContributions(Role.Publisher).SingleOrDefault()?.Contributor.Name;
+
+		#region contributors, authors, narrators
+		internal HashSet<BookContributor> ContributorsLink { get; private set; }
+
+        public IEnumerable<Contributor> Authors => ContributorsLink.ByRole(Role.Author).Select(bc => bc.Contributor).ToList();
+        public IEnumerable<Contributor> Narrators => ContributorsLink.ByRole(Role.Narrator).Select(bc => bc.Contributor).ToList();
+        public string Publisher => ContributorsLink.ByRole(Role.Publisher).SingleOrDefault()?.Contributor.Name;
 
         public void ReplaceAuthors(IEnumerable<Contributor> authors, DbContext context = null)
             => replaceContributors(authors, Role.Author, context);
@@ -134,47 +135,70 @@ namespace DataLayer
             ArgumentValidator.EnsureEnumerableNotNullOrEmpty(newContributors, nameof(newContributors));
 
             // the edge cases of doing local-loaded vs remote-only got weird. just load it
-            if (_contributorsLink is null)
+            if (ContributorsLink is null)
-				getEntry(context).Collection(s => s.ContributorsLink).Load();
+                getEntry(context).Collection(s => s.ContributorsLink).Load();
+
+            var isIdentical
+                = ContributorsLink
+                .ByRole(role)
+                .Select(c => c.Contributor)
+                .SequenceEqual(newContributors);
 
-			var roleContributions = getContributions(role);
-            var isIdentical = roleContributions.Select(c => c.Contributor).SequenceEqual(newContributors);
             if (isIdentical)
                 return;
 
-            _contributorsLink.RemoveWhere(bc => bc.Role == role);
+            ContributorsLink.RemoveWhere(bc => bc.Role == role);
             addNewContributors(newContributors, role);
         }
 
-		private void addNewContributors(IEnumerable<Contributor> newContributors, Role role)
+        private void addNewContributors(IEnumerable<Contributor> newContributors, Role role)
         {
             byte order = 0;
             var newContributionsEnum = newContributors.Select(c => new BookContributor(this, c, role, order++));
             var newContributions = new HashSet<BookContributor>(newContributionsEnum);
-            _contributorsLink.UnionWith(newContributions);
+            ContributorsLink.UnionWith(newContributions);
         }
 
-        private List<BookContributor> getContributions(Role role)
-            => ContributorsLink
-                .Where(a => a.Role == role)
-                .OrderBy(a => a.Order)
-                .ToList();
         #endregion
 
-		private Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<Book> getEntry(DbContext context)
+        private Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<Book> getEntry(DbContext context)
+        {
+            ArgumentValidator.EnsureNotNull(context, nameof(context));
+
+            var entry = context.Entry(this);
+
+            if (!entry.IsKeySet)
+                throw new InvalidOperationException("Could not load a valid Book from database");
+
+            return entry;
+        }
+
+        #region categories
+        internal HashSet<BookCategory> CategoriesLink { get; private set; }
+
+        private ReadOnlyCollection<BookCategory> _categoriesReadOnly;
+        public ReadOnlyCollection<BookCategory> Categories
+        {
+            get
+            {
+                if (_categoriesReadOnly?.SequenceEqual(CategoriesLink) is not true)
+                    _categoriesReadOnly = CategoriesLink.ToList().AsReadOnly();
+                return _categoriesReadOnly;
+            }
+        }
+		public void SetCategoryLadders(IEnumerable<CategoryLadder> ladders)
 		{
-			ArgumentValidator.EnsureNotNull(context, nameof(context));
+			ArgumentValidator.EnsureNotNull(ladders, nameof(ladders));
 
-			var entry = context.Entry(this);
+			//Replace all existing category ladders.
-
+            //Some books make have duplicate ladders
-			if (!entry.IsKeySet)
+			CategoriesLink.Clear();
-				throw new InvalidOperationException("Could not load a valid Book from database");
+            CategoriesLink.UnionWith(ladders.Distinct().Select(l => new BookCategory(this, l)));
-
-			return entry;
 		}
+		#endregion
 
-        #region series
+		#region series
-        private HashSet<SeriesBook> _seriesLink;
+		private HashSet<SeriesBook> _seriesLink;
         public IEnumerable<SeriesBook> SeriesLink => _seriesLink?.ToList();
 
         public void UpsertSeries(Series series, string order, DbContext context = null)
@@ -224,15 +248,6 @@ namespace DataLayer
             Language = language?.FirstCharToUpper() ?? Language;
         }
 
-        public void UpdateCategory(Category category, DbContext context = null)
+        public override string ToString() => $"[{AudibleProductId}] {TitleWithSubtitle}";
-		{
-			// since category is never null, nullity means it hasn't been loaded
-			if (Category is null)
-				getEntry(context).Reference(s => s.Category).Load();
-
-			Category = category;
-        }
-
-        public override string ToString() => $"[{AudibleProductId}] {Title}";
 	}
 }

Source/DataLayer/EfClasses/BookCategory.cs

@@ -0,0 +1,20 @@
+using Dinah.Core;
+
+namespace DataLayer
+{
+	public class BookCategory
+	{
+		internal int BookId { get; private set; }
+		internal int CategoryLadderId { get; private set; }
+
+		public Book Book { get; private set; }
+		public CategoryLadder CategoryLadder { get; private set; }
+		private BookCategory() { }
+
+		internal BookCategory(Book book, CategoryLadder categoriesList)
+		{
+			Book = ArgumentValidator.EnsureNotNull(book, nameof(book));
+			CategoryLadder = ArgumentValidator.EnsureNotNull(categoriesList, nameof(categoriesList));
+		}
+	}
+}

Source/DataLayer/EfClasses/Category.cs

@@ -1,9 +1,9 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using Dinah.Core;
-using Microsoft.EntityFrameworkCore;
 
+#nullable enable
 namespace DataLayer
 {
     public class AudibleCategoryId
@@ -15,20 +15,29 @@ namespace DataLayer
             Id = id;
         }
     }
+
     public class Category
     {
-        // Empty is a special case. use private ctor w/o validation
-        public static Category GetEmpty() => new() { CategoryId = -1, AudibleCategoryId = "", Name = "" };
-
         internal int CategoryId { get; private set; }
-        public string AudibleCategoryId { get; private set; }
+        public string? AudibleCategoryId { get; private set; }
 
-        public string Name { get; private set; }
+        public string? Name { get; internal set; }
-        public Category ParentCategory { get; private set; }
 
-        private Category() { }
+        internal List<CategoryLadder> _categoryLadders = new();
+        private ReadOnlyCollection<CategoryLadder>? _categoryLaddersReadOnly;
+        public ReadOnlyCollection<CategoryLadder> CategoryLadders
+		{
+			get
+			{
+				if (_categoryLaddersReadOnly?.SequenceEqual(_categoryLadders) is not true)
+					_categoryLaddersReadOnly = _categoryLadders.AsReadOnly();
+				return _categoryLaddersReadOnly;
+			}
+		}
+
+		private Category() { }
         /// <summary>special id class b/c it's too easy to get string order mixed up</summary>
-        public Category(AudibleCategoryId audibleSeriesId, string name, Category parentCategory = null)
+        public Category(AudibleCategoryId audibleSeriesId, string name)
         {
             ArgumentValidator.EnsureNotNull(audibleSeriesId, nameof(audibleSeriesId));
             var id = audibleSeriesId.Id;
@@ -37,15 +46,6 @@ namespace DataLayer
 
             AudibleCategoryId = id;
             Name = name;
-
-            UpdateParentCategory(parentCategory);
-        }
-
-        public void UpdateParentCategory(Category parentCategory)
-        {
-            // don't overwrite with null but not an error
-            if (parentCategory is not null)
-                ParentCategory = parentCategory;
         }
 
 		public override string ToString() => $"[{AudibleCategoryId}] {Name}";

Source/DataLayer/EfClasses/CategoryLadder.cs

@@ -0,0 +1,58 @@
+using Dinah.Core;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+
+#nullable enable
+namespace DataLayer
+{
+	public class CategoryLadder : IEquatable<CategoryLadder>
+	{
+		internal int CategoryLadderId { get; private set; }
+
+		internal List<Category> _categories;
+		private ReadOnlyCollection<Category>? _categoriesReadOnly;
+		public ReadOnlyCollection<Category> Categories
+		{
+			get
+			{
+				if (_categoriesReadOnly?.SequenceEqual(_categories) is not true)
+					_categoriesReadOnly = _categories.AsReadOnly();
+				return _categoriesReadOnly;
+			}
+		}
+
+		private HashSet<BookCategory>? _booksLink;
+		public IEnumerable<BookCategory>? BooksLink => _booksLink?.ToList();
+		private CategoryLadder() { _categories = new(); }
+		public CategoryLadder(List<Category> categories)
+		{
+			ArgumentValidator.EnsureNotNull(categories, nameof(categories));
+			ArgumentValidator.EnsureGreaterThan(categories.Count, nameof(categories), 0);
+			_booksLink = new HashSet<BookCategory>();
+			_categories = categories;
+		}
+
+		public override int GetHashCode()
+		{
+			HashCode hashCode = default;
+			foreach (var category in _categories)
+				hashCode.Add(category.AudibleCategoryId);
+			return hashCode.ToHashCode();
+		}
+
+		public bool Equals(CategoryLadder? other)
+			=> other?._categories is not null
+			&& Equals(other._categories.Select(c => c.AudibleCategoryId));
+
+		public bool Equals(IEnumerable<string?>? categoryIds)
+			=> categoryIds is not null
+			&& _categories.Select(c => c.AudibleCategoryId).SequenceEqual(categoryIds);
+
+		public override bool Equals(object? obj)
+			=> obj is CategoryLadder other && Equals(other);
+
+		public override string ToString() => string.Join(" > ", _categories.Select(c => c.Name));
+	}
+}

Source/DataLayer/EfClasses/UserDefinedItem.cs

@@ -195,7 +195,23 @@ namespace DataLayer
                 }
             }
         }
-		#endregion
+        #endregion
+
+        #region IsFinished
+        private bool _isFinished;
+        public bool IsFinished
+        {
+            get => _isFinished;
+            set
+            {
+                if (value != _isFinished)
+                {
+                    _isFinished = value;
+                    OnItemChanged(nameof(IsFinished));
+                }
+            }
+        }
+        #endregion
 
         public override string ToString() => $"{Book} {Rating} {Tags}";
 	}

Source/DataLayer/EntityExtensions.cs

@@ -7,8 +7,13 @@ using System.Threading.Tasks;
 namespace DataLayer
 {
     public static class EntityExtensions
-    {
+	{
-        public static string TitleSortable(this Book book) => Formatters.GetSortName(book.Title);
+		public static IEnumerable<BookContributor> ByRole(this IEnumerable<BookContributor> contributors, Role role)
+			=> contributors
+				.Where(a => a.Role == role)
+				.OrderBy(a => a.Order);
+
+		public static string TitleSortable(this Book book) => Formatters.GetSortName(book.Title + book.Subtitle);
 
         public static string AuthorNames(this Book book) => string.Join(", ", book.Authors.Select(a => a.Name));
         public static string NarratorNames(this Book book) => string.Join(", ", book.Narrators.Select(n => n.Name));
@@ -46,14 +51,31 @@ namespace DataLayer
                 ? $"{sb.Series.Name} (#{sb.Order})"
                 : sb.Series.Name;
 		}
-        public static string[] CategoriesNames(this Book book)
+
-            => book.Category is null ? new string[0]
+        public static string[] LowestCategoryNames(this Book book)
-            : book.Category.ParentCategory is null ? new[] { book.Category.Name }
+            => book.CategoriesLink?.Any() is not true ? Array.Empty<string>()
-            : new[] { book.Category.ParentCategory.Name, book.Category.Name };
+			: book
-        public static string[] CategoriesIds(this Book book)
+                .CategoriesLink
-            => book.Category is null ? null
+                .Select(cl => cl.CategoryLadder.Categories.LastOrDefault()?.Name)
-            : book.Category.ParentCategory is null ? new[] { book.Category.AudibleCategoryId }
+                .Where(c => c is not null)
-            : new[] { book.Category.ParentCategory.AudibleCategoryId, book.Category.AudibleCategoryId };
+                .Distinct()
+                .ToArray();
+
+        public static string[] AllCategoryNames(this Book book)
+            => book.CategoriesLink?.Any() is not true ? Array.Empty<string>()
+            : book
+                .CategoriesLink
+                .SelectMany(cl => cl.CategoryLadder.Categories)
+                .Select(c => c.Name)
+                .ToArray();
+
+		public static string[] AllCategoryIds(this Book book)
+            => book.CategoriesLink?.Any() is not true ? null
+            : book
+                .CategoriesLink
+                .SelectMany(cl => cl.CategoryLadder.Categories)
+                .Select(c => c.AudibleCategoryId)
+                .ToArray();
 
         public static string AggregateTitles(this IEnumerable<LibraryBook> libraryBooks, int max = 5)
 		{
@@ -62,7 +84,7 @@ namespace DataLayer
 
 			max = Math.Max(max, 1);
 
-			var titles = libraryBooks.Select(lb => "- " + lb.Book.Title).ToList();
+			var titles = libraryBooks.Select(lb => "- " + lb.Book.TitleWithSubtitle).ToList();
 			var titlesAgg = titles.Take(max).Aggregate((a, b) => $"{a}\r\n{b}");
 			if (titles.Count == max + 1)
 				titlesAgg += $"\r\n\r\nand 1 other";

Source/DataLayer/LibationContext.cs

@@ -23,6 +23,7 @@ namespace DataLayer
         public DbSet<Contributor> Contributors { get; private set; }
         public DbSet<Series> Series { get; private set; }
         public DbSet<Category> Categories { get; private set; }
+        public DbSet<CategoryLadder> CategoryLadders { get; private set; }
 
         public static LibationContext Create(string connectionString)
         {
@@ -39,13 +40,15 @@ namespace DataLayer
         {
             base.OnModelCreating(modelBuilder);
 
-            modelBuilder.ApplyConfiguration(new BookConfig());
+			modelBuilder.ApplyConfiguration(new BookConfig());
             modelBuilder.ApplyConfiguration(new ContributorConfig());
             modelBuilder.ApplyConfiguration(new BookContributorConfig());
             modelBuilder.ApplyConfiguration(new LibraryBookConfig());
             modelBuilder.ApplyConfiguration(new SeriesConfig());
             modelBuilder.ApplyConfiguration(new SeriesBookConfig());
             modelBuilder.ApplyConfiguration(new CategoryConfig());
+			modelBuilder.ApplyConfiguration(new CategoryLadderConfig());
+			modelBuilder.ApplyConfiguration(new BookCategoryConfig());
 
 			// views are now supported via "keyless entity types" (instead of "entity types" or the prev "query types"):
 			// https://docs.microsoft.com/en-us/ef/core/modeling/keyless-entity-types

Source/DataLayer/Migrations/20230626171442_AddBookSubtitle.Designer.cs

@@ -0,0 +1,416 @@
+// <auto-generated />
+using System;
+using DataLayer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    [DbContext(typeof(LibationContext))]
+    [Migration("20230626171442_AddBookSubtitle")]
+    partial class AddBookSubtitle
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.5");
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Property<int>("BookId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("CategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Language")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("LengthInMinutes")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Locale")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureLarge")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Subtitle")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("_audioFormat")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.HasIndex("AudibleProductId");
+
+                    b.HasIndex("CategoryId");
+
+                    b.ToTable("Books");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContributorId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<byte>("Order")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "ContributorId", "Role");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("ContributorId");
+
+                    b.ToTable("BookContributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.Property<int>("CategoryId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleCategoryId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("ParentCategoryCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("CategoryId");
+
+                    b.HasIndex("AudibleCategoryId");
+
+                    b.HasIndex("ParentCategoryCategoryId");
+
+                    b.ToTable("Categories");
+
+                    b.HasData(
+                        new
+                        {
+                            CategoryId = -1,
+                            AudibleCategoryId = "",
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleContributorId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ContributorId");
+
+                    b.HasIndex("Name");
+
+                    b.ToTable("Contributors");
+
+                    b.HasData(
+                        new
+                        {
+                            ContributorId = -1,
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("AbsentFromLastScan")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleSeriesId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId");
+
+                    b.HasIndex("AudibleSeriesId");
+
+                    b.ToTable("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Order")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId", "BookId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("SeriesId");
+
+                    b.ToTable("SeriesBook");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.HasOne("DataLayer.Category", "Category")
+                        .WithMany()
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<float>("OverallRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("PerformanceRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("StoryRating")
+                                .HasColumnType("REAL");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("Books");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BookId");
+                        });
+
+                    b.OwnsMany("DataLayer.Supplement", "Supplements", b1 =>
+                        {
+                            b1.Property<int>("SupplementId")
+                                .ValueGeneratedOnAdd()
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Url")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("SupplementId");
+
+                            b1.HasIndex("BookId");
+
+                            b1.ToTable("Supplement");
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.Navigation("Book");
+                        });
+
+                    b.OwnsOne("DataLayer.UserDefinedItem", "UserDefinedItem", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<int?>("PdfStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Tags")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("UserDefinedItem", (string)null);
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.OwnsOne("DataLayer.Rating", "Rating", b2 =>
+                                {
+                                    b2.Property<int>("UserDefinedItemBookId")
+                                        .HasColumnType("INTEGER");
+
+                                    b2.Property<float>("OverallRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("PerformanceRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("StoryRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.HasKey("UserDefinedItemBookId");
+
+                                    b2.ToTable("UserDefinedItem");
+
+                                    b2.WithOwner()
+                                        .HasForeignKey("UserDefinedItemBookId");
+                                });
+
+                            b1.Navigation("Book");
+
+                            b1.Navigation("Rating");
+                        });
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Rating");
+
+                    b.Navigation("Supplements");
+
+                    b.Navigation("UserDefinedItem");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("ContributorsLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Contributor", "Contributor")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("ContributorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Contributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.HasOne("DataLayer.Category", "ParentCategory")
+                        .WithMany()
+                        .HasForeignKey("ParentCategoryCategoryId");
+
+                    b.Navigation("ParentCategory");
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithOne()
+                        .HasForeignKey("DataLayer.LibraryBook", "BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("SeriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Series", "Series")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("SeriesId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Navigation("ContributorsLink");
+
+                    b.Navigation("SeriesLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Source/DataLayer/Migrations/20230626171442_AddBookSubtitle.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddBookSubtitle : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "Subtitle",
+                table: "Books",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Subtitle",
+                table: "Books");
+        }
+    }
+}

Source/DataLayer/Migrations/20230718214617_AddCategoryLadder.Designer.cs

@@ -0,0 +1,465 @@
+// <auto-generated />
+using System;
+using DataLayer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    [DbContext(typeof(LibationContext))]
+    [Migration("20230718214617_AddCategoryLadder")]
+    partial class AddCategoryLadder
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.5");
+
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
+                {
+                    b.Property<int>("_categoriesCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("_categoryLaddersCategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("_categoriesCategoryId", "_categoryLaddersCategoryLadderId");
+
+                    b.HasIndex("_categoryLaddersCategoryLadderId");
+
+                    b.ToTable("CategoryCategoryLadder");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Property<int>("BookId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Language")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("LengthInMinutes")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Locale")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureLarge")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Subtitle")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("_audioFormat")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.HasIndex("AudibleProductId");
+
+                    b.ToTable("Books");
+                });
+
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "CategoryLadderId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("CategoryLadderId");
+
+                    b.ToTable("BookCategory");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContributorId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<byte>("Order")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "ContributorId", "Role");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("ContributorId");
+
+                    b.ToTable("BookContributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.Property<int>("CategoryId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleCategoryId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("CategoryId");
+
+                    b.HasIndex("AudibleCategoryId");
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
+                {
+                    b.Property<int>("CategoryLadderId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("CategoryLadderId");
+
+                    b.ToTable("CategoryLadders");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleContributorId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ContributorId");
+
+                    b.HasIndex("Name");
+
+                    b.ToTable("Contributors");
+
+                    b.HasData(
+                        new
+                        {
+                            ContributorId = -1,
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("AbsentFromLastScan")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleSeriesId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId");
+
+                    b.HasIndex("AudibleSeriesId");
+
+                    b.ToTable("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Order")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId", "BookId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("SeriesId");
+
+                    b.ToTable("SeriesBook");
+                });
+
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
+                {
+                    b.HasOne("DataLayer.Category", null)
+                        .WithMany()
+                        .HasForeignKey("_categoriesCategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.CategoryLadder", null)
+                        .WithMany()
+                        .HasForeignKey("_categoryLaddersCategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<float>("OverallRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("PerformanceRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("StoryRating")
+                                .HasColumnType("REAL");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("Books");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BookId");
+                        });
+
+                    b.OwnsMany("DataLayer.Supplement", "Supplements", b1 =>
+                        {
+                            b1.Property<int>("SupplementId")
+                                .ValueGeneratedOnAdd()
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Url")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("SupplementId");
+
+                            b1.HasIndex("BookId");
+
+                            b1.ToTable("Supplement");
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.Navigation("Book");
+                        });
+
+                    b.OwnsOne("DataLayer.UserDefinedItem", "UserDefinedItem", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<int?>("PdfStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Tags")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("UserDefinedItem", (string)null);
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.OwnsOne("DataLayer.Rating", "Rating", b2 =>
+                                {
+                                    b2.Property<int>("UserDefinedItemBookId")
+                                        .HasColumnType("INTEGER");
+
+                                    b2.Property<float>("OverallRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("PerformanceRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("StoryRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.HasKey("UserDefinedItemBookId");
+
+                                    b2.ToTable("UserDefinedItem");
+
+                                    b2.WithOwner()
+                                        .HasForeignKey("UserDefinedItemBookId");
+                                });
+
+                            b1.Navigation("Book");
+
+                            b1.Navigation("Rating");
+                        });
+
+                    b.Navigation("Rating");
+
+                    b.Navigation("Supplements");
+
+                    b.Navigation("UserDefinedItem");
+                });
+
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("CategoriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.CategoryLadder", "CategoryLadder")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("CategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("CategoryLadder");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("ContributorsLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Contributor", "Contributor")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("ContributorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Contributor");
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithOne()
+                        .HasForeignKey("DataLayer.LibraryBook", "BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("SeriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Series", "Series")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("SeriesId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Navigation("CategoriesLink");
+
+                    b.Navigation("ContributorsLink");
+
+                    b.Navigation("SeriesLink");
+                });
+
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Source/DataLayer/Migrations/20230718214617_AddCategoryLadder.cs

@@ -0,0 +1,174 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddCategoryLadder : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Books_Categories_CategoryId",
+                table: "Books");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Categories_Categories_ParentCategoryCategoryId",
+                table: "Categories");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Categories_ParentCategoryCategoryId",
+                table: "Categories");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Books_CategoryId",
+                table: "Books");
+
+            migrationBuilder.DeleteData(
+                table: "Categories",
+                keyColumn: "CategoryId",
+                keyValue: -1);
+
+            migrationBuilder.DropColumn(
+                name: "ParentCategoryCategoryId",
+                table: "Categories");
+
+            migrationBuilder.DropColumn(
+                name: "CategoryId",
+                table: "Books");
+
+            migrationBuilder.CreateTable(
+                name: "CategoryLadders",
+                columns: table => new
+                {
+                    CategoryLadderId = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_CategoryLadders", x => x.CategoryLadderId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BookCategory",
+                columns: table => new
+                {
+                    BookId = table.Column<int>(type: "INTEGER", nullable: false),
+                    CategoryLadderId = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BookCategory", x => new { x.BookId, x.CategoryLadderId });
+                    table.ForeignKey(
+                        name: "FK_BookCategory_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_BookCategory_CategoryLadders_CategoryLadderId",
+                        column: x => x.CategoryLadderId,
+                        principalTable: "CategoryLadders",
+                        principalColumn: "CategoryLadderId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "CategoryCategoryLadder",
+                columns: table => new
+                {
+                    _categoriesCategoryId = table.Column<int>(type: "INTEGER", nullable: false),
+                    _categoryLaddersCategoryLadderId = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_CategoryCategoryLadder", x => new { x._categoriesCategoryId, x._categoryLaddersCategoryLadderId });
+                    table.ForeignKey(
+                        name: "FK_CategoryCategoryLadder_Categories__categoriesCategoryId",
+                        column: x => x._categoriesCategoryId,
+                        principalTable: "Categories",
+                        principalColumn: "CategoryId",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_CategoryCategoryLadder_CategoryLadders__categoryLaddersCategoryLadderId",
+                        column: x => x._categoryLaddersCategoryLadderId,
+                        principalTable: "CategoryLadders",
+                        principalColumn: "CategoryLadderId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookCategory_BookId",
+                table: "BookCategory",
+                column: "BookId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookCategory_CategoryLadderId",
+                table: "BookCategory",
+                column: "CategoryLadderId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_CategoryCategoryLadder__categoryLaddersCategoryLadderId",
+                table: "CategoryCategoryLadder",
+                column: "_categoryLaddersCategoryLadderId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "BookCategory");
+
+            migrationBuilder.DropTable(
+                name: "CategoryCategoryLadder");
+
+            migrationBuilder.DropTable(
+                name: "CategoryLadders");
+
+            migrationBuilder.AddColumn<int>(
+                name: "ParentCategoryCategoryId",
+                table: "Categories",
+                type: "INTEGER",
+                nullable: true);
+
+            migrationBuilder.AddColumn<int>(
+                name: "CategoryId",
+                table: "Books",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.InsertData(
+                table: "Categories",
+                columns: new[] { "CategoryId", "AudibleCategoryId", "Name", "ParentCategoryCategoryId" },
+                values: new object[] { -1, "", "", null });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Categories_ParentCategoryCategoryId",
+                table: "Categories",
+                column: "ParentCategoryCategoryId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Books_CategoryId",
+                table: "Books",
+                column: "CategoryId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Books_Categories_CategoryId",
+                table: "Books",
+                column: "CategoryId",
+                principalTable: "Categories",
+                principalColumn: "CategoryId",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Categories_Categories_ParentCategoryCategoryId",
+                table: "Categories",
+                column: "ParentCategoryCategoryId",
+                principalTable: "Categories",
+                principalColumn: "CategoryId");
+        }
+    }
+}

Source/DataLayer/Migrations/20240911114741_MyComment.Designer.cs

@@ -0,0 +1,468 @@
+// <auto-generated />
+using System;
+using DataLayer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    [DbContext(typeof(LibationContext))]
+    [Migration("20240911114741_MyComment")]
+    partial class MyComment
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.5");
+
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
+                {
+                    b.Property<int>("_categoriesCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("_categoryLaddersCategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("_categoriesCategoryId", "_categoryLaddersCategoryLadderId");
+
+                    b.HasIndex("_categoryLaddersCategoryLadderId");
+
+                    b.ToTable("CategoryCategoryLadder");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Property<int>("BookId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Language")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("LengthInMinutes")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Locale")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureLarge")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Subtitle")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("_audioFormat")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.HasIndex("AudibleProductId");
+
+                    b.ToTable("Books");
+                });
+
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "CategoryLadderId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("CategoryLadderId");
+
+                    b.ToTable("BookCategory");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContributorId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<byte>("Order")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "ContributorId", "Role");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("ContributorId");
+
+                    b.ToTable("BookContributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.Property<int>("CategoryId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleCategoryId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("CategoryId");
+
+                    b.HasIndex("AudibleCategoryId");
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
+                {
+                    b.Property<int>("CategoryLadderId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("CategoryLadderId");
+
+                    b.ToTable("CategoryLadders");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleContributorId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ContributorId");
+
+                    b.HasIndex("Name");
+
+                    b.ToTable("Contributors");
+
+                    b.HasData(
+                        new
+                        {
+                            ContributorId = -1,
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("AbsentFromLastScan")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleSeriesId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId");
+
+                    b.HasIndex("AudibleSeriesId");
+
+                    b.ToTable("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Order")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId", "BookId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("SeriesId");
+
+                    b.ToTable("SeriesBook");
+                });
+
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
+                {
+                    b.HasOne("DataLayer.Category", null)
+                        .WithMany()
+                        .HasForeignKey("_categoriesCategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.CategoryLadder", null)
+                        .WithMany()
+                        .HasForeignKey("_categoryLaddersCategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<float>("OverallRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("PerformanceRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("StoryRating")
+                                .HasColumnType("REAL");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("Books");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BookId");
+                        });
+
+                    b.OwnsMany("DataLayer.Supplement", "Supplements", b1 =>
+                        {
+                            b1.Property<int>("SupplementId")
+                                .ValueGeneratedOnAdd()
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Url")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("SupplementId");
+
+                            b1.HasIndex("BookId");
+
+                            b1.ToTable("Supplement");
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.Navigation("Book");
+                        });
+
+                    b.OwnsOne("DataLayer.UserDefinedItem", "UserDefinedItem", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<bool>("IsFinished")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<int?>("PdfStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Tags")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("UserDefinedItem", (string)null);
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.OwnsOne("DataLayer.Rating", "Rating", b2 =>
+                                {
+                                    b2.Property<int>("UserDefinedItemBookId")
+                                        .HasColumnType("INTEGER");
+
+                                    b2.Property<float>("OverallRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("PerformanceRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("StoryRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.HasKey("UserDefinedItemBookId");
+
+                                    b2.ToTable("UserDefinedItem");
+
+                                    b2.WithOwner()
+                                        .HasForeignKey("UserDefinedItemBookId");
+                                });
+
+                            b1.Navigation("Book");
+
+                            b1.Navigation("Rating");
+                        });
+
+                    b.Navigation("Rating");
+
+                    b.Navigation("Supplements");
+
+                    b.Navigation("UserDefinedItem");
+                });
+
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("CategoriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.CategoryLadder", "CategoryLadder")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("CategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("CategoryLadder");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("ContributorsLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Contributor", "Contributor")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("ContributorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Contributor");
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithOne()
+                        .HasForeignKey("DataLayer.LibraryBook", "BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("SeriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Series", "Series")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("SeriesId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Navigation("CategoriesLink");
+
+                    b.Navigation("ContributorsLink");
+
+                    b.Navigation("SeriesLink");
+                });
+
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Source/DataLayer/Migrations/20240911114741_MyComment.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    /// <inheritdoc />
+    public partial class MyComment : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsFinished",
+                table: "UserDefinedItem",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: false);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsFinished",
+                table: "UserDefinedItem");
+        }
+    }
+}

Source/DataLayer/Migrations/LibationContextModelSnapshot.cs

@@ -15,7 +15,22 @@ namespace DataLayer.Migrations
         protected override void BuildModel(ModelBuilder modelBuilder)
         {
 #pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "7.0.3");
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.5");
+
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
+                {
+                    b.Property<int>("_categoriesCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("_categoryLaddersCategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("_categoriesCategoryId", "_categoryLaddersCategoryLadderId");
+
+                    b.HasIndex("_categoryLaddersCategoryLadderId");
+
+                    b.ToTable("CategoryCategoryLadder");
+                });
 
             modelBuilder.Entity("DataLayer.Book", b =>
                 {
@@ -26,9 +41,6 @@ namespace DataLayer.Migrations
                     b.Property<string>("AudibleProductId")
                         .HasColumnType("TEXT");
 
-                    b.Property<int>("CategoryId")
-                        .HasColumnType("INTEGER");
-
                     b.Property<int>("ContentType")
                         .HasColumnType("INTEGER");
 
@@ -56,6 +68,9 @@ namespace DataLayer.Migrations
                     b.Property<string>("PictureLarge")
                         .HasColumnType("TEXT");
 
+                    b.Property<string>("Subtitle")
+                        .HasColumnType("TEXT");
+
                     b.Property<string>("Title")
                         .HasColumnType("TEXT");
 
@@ -66,11 +81,26 @@ namespace DataLayer.Migrations
 
                     b.HasIndex("AudibleProductId");
 
-                    b.HasIndex("CategoryId");
-
                     b.ToTable("Books");
                 });
 
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CategoryLadderId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "CategoryLadderId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("CategoryLadderId");
+
+                    b.ToTable("BookCategory");
+                });
+
             modelBuilder.Entity("DataLayer.BookContributor", b =>
                 {
                     b.Property<int>("BookId")
@@ -106,24 +136,22 @@ namespace DataLayer.Migrations
                     b.Property<string>("Name")
                         .HasColumnType("TEXT");
 
-                    b.Property<int?>("ParentCategoryCategoryId")
-                        .HasColumnType("INTEGER");
-
                     b.HasKey("CategoryId");
 
                     b.HasIndex("AudibleCategoryId");
 
-                    b.HasIndex("ParentCategoryCategoryId");
-
                     b.ToTable("Categories");
+                });
 
-                    b.HasData(
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
-                        new
+                {
-                        {
+                    b.Property<int>("CategoryLadderId")
-                            CategoryId = -1,
+                        .ValueGeneratedOnAdd()
-                            AudibleCategoryId = "",
+                        .HasColumnType("INTEGER");
-                            Name = ""
+
-                        });
+                    b.HasKey("CategoryLadderId");
+
+                    b.ToTable("CategoryLadders");
                 });
 
             modelBuilder.Entity("DataLayer.Contributor", b =>
@@ -213,14 +241,23 @@ namespace DataLayer.Migrations
                     b.ToTable("SeriesBook");
                 });
 
-            modelBuilder.Entity("DataLayer.Book", b =>
+            modelBuilder.Entity("CategoryCategoryLadder", b =>
                 {
-                    b.HasOne("DataLayer.Category", "Category")
+                    b.HasOne("DataLayer.Category", null)
                         .WithMany()
-                        .HasForeignKey("CategoryId")
+                        .HasForeignKey("_categoriesCategoryId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
 
+                    b.HasOne("DataLayer.CategoryLadder", null)
+                        .WithMany()
+                        .HasForeignKey("_categoryLaddersCategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
                     b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
                         {
                             b1.Property<int>("BookId")
@@ -275,6 +312,9 @@ namespace DataLayer.Migrations
                             b1.Property<int>("BookStatus")
                                 .HasColumnType("INTEGER");
 
+                            b1.Property<bool>("IsFinished")
+                                .HasColumnType("INTEGER");
+
                             b1.Property<DateTime?>("LastDownloaded")
                                 .HasColumnType("TEXT");
 
@@ -321,8 +361,6 @@ namespace DataLayer.Migrations
                             b1.Navigation("Rating");
                         });
 
-                    b.Navigation("Category");
-
                     b.Navigation("Rating");
 
                     b.Navigation("Supplements");
@@ -330,6 +368,25 @@ namespace DataLayer.Migrations
                     b.Navigation("UserDefinedItem");
                 });
 
+            modelBuilder.Entity("DataLayer.BookCategory", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("CategoriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.CategoryLadder", "CategoryLadder")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("CategoryLadderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("CategoryLadder");
+                });
+
             modelBuilder.Entity("DataLayer.BookContributor", b =>
                 {
                     b.HasOne("DataLayer.Book", "Book")
@@ -349,15 +406,6 @@ namespace DataLayer.Migrations
                     b.Navigation("Contributor");
                 });
 
-            modelBuilder.Entity("DataLayer.Category", b =>
-                {
-                    b.HasOne("DataLayer.Category", "ParentCategory")
-                        .WithMany()
-                        .HasForeignKey("ParentCategoryCategoryId");
-
-                    b.Navigation("ParentCategory");
-                });
-
             modelBuilder.Entity("DataLayer.LibraryBook", b =>
                 {
                     b.HasOne("DataLayer.Book", "Book")
@@ -390,11 +438,18 @@ namespace DataLayer.Migrations
 
             modelBuilder.Entity("DataLayer.Book", b =>
                 {
+                    b.Navigation("CategoriesLink");
+
                     b.Navigation("ContributorsLink");
 
                     b.Navigation("SeriesLink");
                 });
 
+            modelBuilder.Entity("DataLayer.CategoryLadder", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
             modelBuilder.Entity("DataLayer.Contributor", b =>
                 {
                     b.Navigation("BooksLink");

Source/DataLayer/QueryObjects/BookQueries.cs

@@ -34,7 +34,7 @@ namespace DataLayer
                 // owned items are always loaded. eg: book.UserDefinedItem, book.Supplements
                 .Include(b => b.SeriesLink).ThenInclude(sb => sb.Series)
                 .Include(b => b.ContributorsLink).ThenInclude(c => c.Contributor)
-                .Include(b => b.Category).ThenInclude(c => c.ParentCategory);
+                .Include(b => b.CategoriesLink).ThenInclude(c => c.CategoryLadder).ThenInclude(c => c._categories);
 
         public static bool IsProduct(this Book book)
             => book.ContentType is not ContentType.Episode and not ContentType.Parent;

Source/DataLayer/QueryObjects/CategoryQueries.cs

@@ -0,0 +1,11 @@
+using Microsoft.EntityFrameworkCore;
+using System.Linq;
+
+namespace DataLayer
+{
+	public static class CategoryQueries
+	{
+		public static IQueryable<CategoryLadder> GetCategoryLadders(this LibationContext context)
+			=> context.CategoryLadders.Include(c => c._categories);
+	}
+}

Source/DataLayer/QueryObjects/LibraryBookQueries.cs

@@ -55,7 +55,7 @@ namespace DataLayer
                 // owned items are always loaded. eg: book.UserDefinedItem, book.Supplements
                 .Include(le => le.Book).ThenInclude(b => b.SeriesLink).ThenInclude(sb => sb.Series)
                 .Include(le => le.Book).ThenInclude(b => b.ContributorsLink).ThenInclude(c => c.Contributor)
-                .Include(le => le.Book).ThenInclude(b => b.Category).ThenInclude(c => c.ParentCategory);
+                .Include(le => le.Book).ThenInclude(b => b.CategoriesLink).ThenInclude(c => c.CategoryLadder).ThenInclude(c => c._categories);
 
         public static IEnumerable<LibraryBook> ParentedEpisodes(this IEnumerable<LibraryBook> libraryBooks)
             => libraryBooks.Where(lb => lb.Book.IsEpisodeParent()).SelectMany(libraryBooks.FindChildren);

Source/DtoImporterService/BookImporter.cs

@@ -99,32 +99,18 @@ namespace DtoImporterService
                     .Select(n => contributorImporter.Cache[n.Name])
 					.ToList();
 
-			// categories are laid out for a breadcrumb. category is 1st, subcategory is 2nd
-			// absence of categories is also possible
-
-			// CATEGORY HACK: only use the 1st 2 categories
-			// after we support full arbitrary-depth category trees and multiple categories per book, the real impl will be something like this
-			//   var lastCategory = item.Categories.LastOrDefault()?.CategoryId ?? "";
-			var lastCategory
-				= item.Categories.Length == 0 ? ""
-				: item.Categories.Length == 1 ? item.Categories[0].CategoryId
-				// 2+
-				: item.Categories[1].CategoryId;
-
-			var category = categoryImporter.Cache[lastCategory];
-
 			Book book;
 			try
 			{
 				book = DbContext.Books.Add(new Book(
 					new AudibleProductId(item.ProductId),
-					item.TitleWithSubtitle,
+					item.Title,
+					item.Subtitle,
 					item.Description,
 					item.LengthInMinutes,
 					contentType,
 					authors,
 					narrators,
-					category,
 					importItem.LocaleName)
 					).Entity;
 				Cache.Add(book.AudibleProductId, book);
@@ -139,7 +125,6 @@ namespace DtoImporterService
 					contentType,
 					QtyAuthors = authors?.Count,
 					QtyNarrators = narrators?.Count,
-					Category = category?.Name,
 					importItem.LocaleName
 				});
 				throw;
@@ -164,6 +149,11 @@ namespace DtoImporterService
 		{
 			var item = importItem.DtoItem;
 
+			book.UpdateLengthInMinutes(item.LengthInMinutes);
+
+			// Update the book titles, since formatting can change
+			book.UpdateTitle(item.Title, item.Subtitle);
+
 			var codec = item.AvailableCodecs?.Max(f => AudioFormat.FromString(f.EnhancedCodec)) ?? new AudioFormat();
 			book.AudioFormat = codec;
 
@@ -174,6 +164,9 @@ namespace DtoImporterService
 			if (item.PictureLarge is not null)
 				book.PictureLarge = item.PictureLarge;
 
+			if (item.IsFinished is not null)
+                book.UserDefinedItem.IsFinished = item.IsFinished.Value;
+
             // 2023-02-01
             // updateBook must update language on books which were imported before the migration which added language.
             // Can eventually delete this
@@ -197,6 +190,19 @@ namespace DtoImporterService
 					book.UpsertSeries(series, seriesEntry.Sequence);
 				}
 			}
+
+			if (item.CategoryLadders is not null)
+			{
+				var ladders = new List<DataLayer.CategoryLadder>();
+				foreach (var ladder in item.CategoryLadders.Select(cl => cl.Ladder).Where(l => l?.Length > 0))
+				{
+					var categoryIds = ladder.Select(l => l.CategoryId).ToList();
+					ladders.Add(categoryImporter.LadderCache.Single(c => c.Equals(categoryIds)));
+				}
+				//Set all ladders at once so ladders that have been
+				//removed by audible can be removed from the DB
+				book.SetCategoryLadders(ladders);
+			}
 		}
 
 		private static DataLayer.ContentType GetContentType(Item item)

Source/DtoImporterService/CategoryImporter.cs

@@ -12,76 +12,86 @@ namespace DtoImporterService
 	{
 		protected override IValidator Validator => new CategoryValidator();
 
-		public Dictionary<string, Category> Cache { get; private set; } = new();
+		private Dictionary<string, Category> CategoryCache { get; set; } = new();
+		public HashSet<DataLayer.CategoryLadder> LadderCache { get; private set; } = new();
 
 		public CategoryImporter(LibationContext context) : base(context) { }
 
 		protected override int DoImport(IEnumerable<ImportItem> importItems)
 		{
-			// get distinct
-			var categoryIds = importItems
-				.Select(i => i.DtoItem)
-				.GetCategoriesDistinct()
-				.Select(c => c.CategoryId)
-				.Distinct()
-				.ToList();
-
 			// load db existing => .Local
-			loadLocal_categories(categoryIds);
+			loadLocal_categories();
 
 			// upsert
-			var categoryPairs = importItems
+			//Import item may not have no (null) categories
-				.Select(i => i.DtoItem)
+			var categoryLadders = importItems
-				.GetCategoryPairsDistinct()
+				.Where(i => i.DtoItem.CategoryLadders is not null)
+				.SelectMany(i => i.DtoItem.CategoryLadders)
+				.Select(cl => cl?.Ladder)
+				.Where(l => l?.Length > 0)
 				.ToList();
-			var qtyNew = upsertCategories(categoryPairs);
+
+			var qtyNew = upsertCategories(categoryLadders);
 			return qtyNew;
 		}
 
-		private void loadLocal_categories(List<string> categoryIds)
+		private void loadLocal_categories()
 		{
-			// must include default/empty/missing
-			categoryIds.Add(Category.GetEmpty().AudibleCategoryId);
-
 			// load existing => local
-			Cache = DbContext.Categories
+			LadderCache = DbContext.GetCategoryLadders().ToHashSet();
-				.Where(c => categoryIds.Contains(c.AudibleCategoryId))
+			CategoryCache = LadderCache.SelectMany(cl => cl.Categories).ToDictionarySafe(c => c.AudibleCategoryId);
-				.ToDictionarySafe(c => c.AudibleCategoryId);
 		}
 
 		// only use after loading contributors => local
-		private int upsertCategories(List<Ladder[]> categoryPairs)
+		private int upsertCategories(List<Ladder[]> ladders)
 		{
 			var qtyNew = 0;
 
-			foreach (var pair in categoryPairs)
+			foreach (var ladder in ladders)
 			{
-				for (var i = 0; i < pair.Length; i++)
+				var categories = new List<Category>(ladder.Length);
+
+				for (var i = 0; i < ladder.Length; i++)
 				{
-					// CATEGORY HACK: not yet supported: depth beyond 0 and 1
+					var id = ladder[i].CategoryId;
-					if (i > 1)
+					var name = ladder[i].CategoryName;
-						break;
 
-					var id = pair[i].CategoryId;
+					if (!CategoryCache.TryGetValue(id, out var category))
-					var name = pair[i].CategoryName;
-
-					Category parentCategory = null;
-					if (i == 1)
-						Cache.TryGetValue(pair[0].CategoryId, out parentCategory);
-
-					if (!Cache.TryGetValue(id, out var category))
 					{
 						category = addCategory(id, name);
-						qtyNew++;
 					}
 
-					category.UpdateParentCategory(parentCategory);
+					categories.Add(category);
+				}
+
+				var categoryLadder = new DataLayer.CategoryLadder(categories);
+				if (!LadderCache.Contains(categoryLadder))
+				{
+					addCategoryLadder(categoryLadder);
+					qtyNew++;
 				}
 			}
 
 			return qtyNew;
 		}
 
+		private DataLayer.CategoryLadder addCategoryLadder(DataLayer.CategoryLadder categoryList)
+		{
+			try
+			{
+				var entityEntry = DbContext.CategoryLadders.Add(categoryList);
+				var entity = entityEntry.Entity;
+
+				LadderCache.Add(entity);
+				return entity;
+			}
+			catch (Exception ex)
+			{
+				Serilog.Log.Logger.Error(ex, "Error adding category ladder. {@DebugInfo}", categoryList);
+				throw;
+			}
+		}
+
 		private Category addCategory(string id, string name)
 		{
 			try
@@ -91,7 +101,7 @@ namespace DtoImporterService
 				var entityEntry = DbContext.Categories.Add(category);
 				var entity = entityEntry.Entity;
 
-				Cache.Add(entity.AudibleCategoryId, entity);
+				CategoryCache.Add(entity.AudibleCategoryId, entity);
 				return entity;
 			}
 			catch (Exception ex)

Source/DtoImporterService/DtoImporterService.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">

Source/FileLiberator/AudioFileStorageExt.cs

@@ -21,12 +21,12 @@ namespace FileLiberator
 				var series = libraryBook.Book.SeriesLink.SingleOrDefault();
 				if (series is not null)
 				{
-					var seriesParent = ApplicationServices.DbContexts.GetContext().GetLibraryBook_Flat_NoTracking(series.Series.AudibleSeriesId);
+					using var context = ApplicationServices.DbContexts.GetContext();
+					var seriesParent = context.GetLibraryBook_Flat_NoTracking(series.Series.AudibleSeriesId);
 
 					if (seriesParent is not null)
 					{
-						var baseDir = Templates.Folder.GetFilename(seriesParent.ToDto(), AudibleFileStorage.BooksDirectory, "");
+						return Templates.Folder.GetFilename(seriesParent.ToDto(), AudibleFileStorage.BooksDirectory, "");
-						return Templates.Folder.GetFilename(libraryBook.ToDto(), baseDir, "");
 					}
 				}
 			}

Source/FileLiberator/ConvertToMp3.cs

@@ -51,18 +51,24 @@ namespace FileLiberator
 
 					var config = Configuration.Instance;
 					var lameConfig = GetLameOptions(config);
-
+					var chapters = m4bBook.GetChaptersFromMetadata();
 					//Finishing configuring lame encoder.
 					AaxDecrypter.MpegUtil.ConfigureLameOptions(
 						m4bBook,
 						lameConfig,
 						config.LameDownsampleMono,
-						config.LameMatchSourceBR);
+						config.LameMatchSourceBR,
+						chapters);
 
-					using var mp3File = File.OpenWrite(Path.GetTempFileName());
+					if (m4bBook.AppleTags.Tracks is (int trackNum, int trackCount))
+					{
+						lameConfig.ID3.Track = trackCount > 0 ? $"{trackNum}/{trackCount}" : trackNum.ToString();
+					}
+
+					using var mp3File = File.Open(Path.GetTempFileName(), FileMode.OpenOrCreate, FileAccess.ReadWrite);
 					try
 					{
-						Mp4Operation = m4bBook.ConvertToMp3Async(mp3File, lameConfig);
+						Mp4Operation = m4bBook.ConvertToMp3Async(mp3File, lameConfig, chapters);
 						Mp4Operation.ConversionProgressUpdate += M4bBook_ConversionProgressUpdate;
 						await Mp4Operation;
 
@@ -73,7 +79,17 @@ namespace FileLiberator
 						}
 						else
 						{
-							var realMp3Path = FileUtility.SaferMoveToValidPath(mp3File.Name, proposedMp3Path, Configuration.Instance.ReplacementCharacters, "mp3");
+							var realMp3Path
+								= FileUtility.SaferMoveToValidPath(
+									mp3File.Name,
+									proposedMp3Path,
+									Configuration.Instance.ReplacementCharacters,
+									extension: "mp3",
+									Configuration.Instance.OverwriteExisting);
+
+							SetFileTime(libraryBook, realMp3Path);
+							SetDirectoryTime(libraryBook, Path.GetDirectoryName(realMp3Path));
+
 							OnFileCreated(libraryBook, realMp3Path);
 						}
 					}

Source/FileLiberator/DownloadDecryptBook.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using AaxDecrypter;
 using ApplicationServices;
+using AudibleApi.Common;
 using DataLayer;
 using Dinah.Core;
 using Dinah.Core.ErrorHandling;
@@ -41,7 +42,7 @@ namespace FileLiberator
 
             OnBegin(libraryBook);
 
-			try
+            try
             {
                 if (libraryBook.Book.Audio_Exists())
                     return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
@@ -76,17 +77,38 @@ namespace FileLiberator
 
                 var finalStorageDir = getDestinationDirectory(libraryBook);
 
-				Task[] finalTasks = new[]
+                var moveFilesTask = Task.Run(() => moveFilesToBooksDir(libraryBook, entries));
+                Task[] finalTasks = new[]
                 {
-					Task.Run(() => downloadCoverArt(libraryBook)),
+                    Task.Run(() => downloadCoverArt(libraryBook)),
-					Task.Run(() => moveFilesToBooksDir(libraryBook, entries)),
+                    moveFilesTask,
-					Task.Run(() => libraryBook.Book.UpdateBookStatus(LiberatedStatus.Liberated, Configuration.LibationVersion)),
+                    Task.Run(() => WindowsDirectory.SetCoverAsFolderIcon(libraryBook.Book.PictureId, finalStorageDir))
-					Task.Run(() => WindowsDirectory.SetCoverAsFolderIcon(libraryBook.Book.PictureId, finalStorageDir))
+                };
-				};
 
-				await Task.WhenAll(finalTasks);
+				try
+                {
+                    await Task.WhenAll(finalTasks);
+                }
+                catch
+                {
+					//Swallow downloadCoverArt and SetCoverAsFolderIcon exceptions.
+                    //Only fail if the downloaded audio files failed to move to Books directory
+					if (moveFilesTask.IsFaulted)
+                    {
+                        throw;
+                    }
+                }
+                finally
+                {
+                    if (moveFilesTask.IsCompletedSuccessfully)
+                    {
+                        await Task.Run(() => libraryBook.UpdateBookStatus(LiberatedStatus.Liberated, Configuration.LibationVersion));
 
-                return new StatusHandler();
+						SetDirectoryTime(libraryBook, finalStorageDir);
+					}
+				}
+
+				return new StatusHandler();
             }
             finally
             {
@@ -100,14 +122,15 @@ namespace FileLiberator
 
             downloadValidation(libraryBook);
 
+            var quality = (AudibleApi.DownloadQuality)config.FileDownloadQuality;
             var api = await libraryBook.GetApiAsync();
-            var contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId);
+            var contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, quality);
-            using var dlOptions = BuildDownloadOptions(libraryBook, config, contentLic);
+			using var dlOptions = BuildDownloadOptions(libraryBook, config, contentLic);
 
             var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(libraryBook, dlOptions.OutputFormat.ToString().ToLower());
             var cacheDir = AudibleFileStorage.DownloadsInProgressDirectory;
 
-            if (contentLic.DrmType != AudibleApi.Common.DrmType.Adrm)
+            if (contentLic.DrmType != DrmType.Adrm)
                 abDownloader = new UnencryptedAudiobookDownloader(outFileName, cacheDir, dlOptions);
             else
             {
@@ -117,7 +140,7 @@ namespace FileLiberator
                     new AaxcDownloadSingleConverter(outFileName, cacheDir, dlOptions);
 
                 if (config.AllowLibationFixup)
-                    converter.RetrievedMetadata += (_, tags) => tags.Generes = string.Join(", ", libraryBook.Book.CategoriesNames());
+                    converter.RetrievedMetadata += (_, tags) => tags.Generes = string.Join(", ", libraryBook.Book.LowestCategoryNames());
 
                 abDownloader = converter;
             }
@@ -130,16 +153,29 @@ namespace FileLiberator
             abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
             abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
 
-			// REAL WORK DONE HERE
+            // REAL WORK DONE HERE
-			return await abDownloader.RunAsync();
+            var success = await abDownloader.RunAsync();
+
+			if (success && config.SaveMetadataToFile)
+            {
+                var metadataFile = Templates.File.GetFilename(dlOptions.LibraryBookDto, Path.GetDirectoryName(outFileName), ".metadata.json");
+
+                var item = await api.GetCatalogProductAsync(libraryBook.Book.AudibleProductId, AudibleApi.CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
+				item.SourceJson.Add(nameof(ContentMetadata.ChapterInfo), Newtonsoft.Json.Linq.JObject.FromObject(contentLic.ContentMetadata.ChapterInfo));
+				item.SourceJson.Add(nameof(ContentMetadata.ContentReference), Newtonsoft.Json.Linq.JObject.FromObject(contentLic.ContentMetadata.ContentReference));
+
+				File.WriteAllText(metadataFile, item.SourceJson.ToString());
+				OnFileCreated(libraryBook, metadataFile);
+			}            
+			return success;
         }
 
-        private DownloadOptions BuildDownloadOptions(LibraryBook libraryBook, Configuration config, AudibleApi.Common.ContentLicense contentLic)
+		private DownloadOptions BuildDownloadOptions(LibraryBook libraryBook, Configuration config, ContentLicense contentLic)
         {
 			//If DrmType != Adrm the delivered file is an unencrypted mp3.
 
             var outputFormat
-                = contentLic.DrmType != AudibleApi.Common.DrmType.Adrm || (config.AllowLibationFixup && config.DecryptToLossy)
+                = contentLic.DrmType != DrmType.Adrm || (config.AllowLibationFixup && config.DecryptToLossy)
                 ? OutputFormat.Mp3
                 : OutputFormat.M4b;
 
@@ -148,7 +184,10 @@ namespace FileLiberator
                 ? contentLic.ContentMetadata.ChapterInfo.BrandIntroDurationMs
                 : 0;
 
-            var dlOptions = new DownloadOptions(config, libraryBook, contentLic?.ContentMetadata?.ContentUrl?.OfflineUrl)
+            //Set the requested AudioFormat for use in file naming templates
+			libraryBook.Book.AudioFormat = AudioFormat.FromString(contentLic.ContentMetadata.ContentReference.ContentFormat);
+
+			var dlOptions = new DownloadOptions(config, libraryBook, contentLic?.ContentMetadata?.ContentUrl?.OfflineUrl)
             {
                 AudibleKey = contentLic?.Voucher?.Key,
                 AudibleIV = contentLic?.Voucher?.Iv,
@@ -158,7 +197,11 @@ namespace FileLiberator
 				RuntimeLength = TimeSpan.FromMilliseconds(contentLic?.ContentMetadata?.ChapterInfo?.RuntimeLengthMs ?? 0),
 			};
 
-            var chapters = flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters).OrderBy(c => c.StartOffsetMs).ToList();
+            var titleConcat = config.CombineNestedChapterTitles ? ": " : null;
+            var chapters
+                = flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters, titleConcat)
+                .OrderBy(c => c.StartOffsetMs)
+                .ToList();
 
             if (config.MergeOpeningAndEndCredits)
                 combineCredits(chapters);
@@ -255,14 +298,19 @@ namespace FileLiberator
 
 		*/
 
-        public static List<AudibleApi.Common.Chapter> flattenChapters(IList<AudibleApi.Common.Chapter> chapters, string titleConcat = ": ")
+        public static List<Chapter> flattenChapters(IList<Chapter> chapters, string titleConcat = ": ")
         {
-            List<AudibleApi.Common.Chapter> chaps = new();
+            List<Chapter> chaps = new();
 
             foreach (var c in chapters)
             {
                 if (c.Chapters is null)
 					chaps.Add(c);
+                else if (titleConcat is null)
+                {
+                    chaps.Add(c);
+					chaps.AddRange(flattenChapters(c.Chapters));
+                }
 				else
 				{
                     if (c.LengthMs < 10000)
@@ -280,13 +328,12 @@ namespace FileLiberator
                         child.Title = $"{c.Title}{titleConcat}{child.Title}";
 
                     chaps.AddRange(children);
-                    c.Chapters = null;
                 }
             }
             return chaps;
         }
 
-        public static void combineCredits(IList<AudibleApi.Common.Chapter> chapters)
+        public static void combineCredits(IList<Chapter> chapters)
         {
             if (chapters.Count > 1 && chapters[0].Title == "Opening Credits")
             {
@@ -310,9 +357,9 @@ namespace FileLiberator
             string errorTitle()
             {
                 var title
-                    = (libraryBook.Book.Title.Length > 53)
+                    = (libraryBook.Book.TitleWithSubtitle.Length > 53)
-                    ? $"{libraryBook.Book.Title.Truncate(50)}..."
+                    ? $"{libraryBook.Book.TitleWithSubtitle.Truncate(50)}..."
-                    : libraryBook.Book.Title;
+                    : libraryBook.Book.TitleWithSubtitle;
                 var errorBookTitle = $"{title} [{libraryBook.Book.AudibleProductId}]";
                 return errorBookTitle;
             };
@@ -326,11 +373,22 @@ namespace FileLiberator
 
         private void AaxcDownloader_RetrievedCoverArt(object _, byte[] e)
         {
+            if (Configuration.Instance.AllowLibationFixup)
+            {
+                try
+                {
+                    e = OnRequestCoverArt();
+                    abDownloader.SetCoverArt(e);
+                }
+                catch (Exception ex)
+                {
+                    Serilog.Log.Logger.Error(ex, "Failed to retrieve cover art from server.");
+                }
+            }
+            
             if (e is not null)
                 OnCoverImageDiscovered(e);
-            else if (Configuration.Instance.AllowLibationFixup)
+		}
-                abDownloader.SetCoverArt(OnRequestCoverArt());
-        }
 
         /// <summary>Move new files to 'Books' directory</summary>
         /// <returns>Return directory if audiobook file(s) were successfully created and can be located on disk. Else null.</returns>
@@ -343,8 +401,15 @@ namespace FileLiberator
             {
                 var entry = entries[i];
 
-                var realDest = FileUtility.SaferMoveToValidPath(entry.Path, Path.Combine(destinationDir, Path.GetFileName(entry.Path)), Configuration.Instance.ReplacementCharacters);
+                var realDest
-                FilePathCache.Insert(libraryBook.Book.AudibleProductId, realDest);
+                    = FileUtility.SaferMoveToValidPath(
+                        entry.Path,
+                        Path.Combine(destinationDir, Path.GetFileName(entry.Path)),
+                        Configuration.Instance.ReplacementCharacters,
+                        overwrite: Configuration.Instance.OverwriteExisting);
+
+                SetFileTime(libraryBook, realDest);
+				FilePathCache.Insert(libraryBook.Book.AudibleProductId, realDest);
 
                 // propagate corrected path. Must update cache with corrected path. Also want updated path for cue file (after this for-loop)
                 entries[i] = entry with { Path = realDest };
@@ -352,7 +417,10 @@ namespace FileLiberator
 
 			var cue = entries.FirstOrDefault(f => f.FileType == FileType.Cue);
             if (cue != default)
+            {
                 Cue.UpdateFileName(cue.Path, getFirstAudioFile(entries).Path);
+				SetFileTime(libraryBook, cue.Path);
+			}
 
             AudibleFileStorage.Audio.Refresh();
         }
@@ -370,7 +438,7 @@ namespace FileLiberator
 
 		private static void downloadCoverArt(LibraryBook libraryBook)
         {
-            if (!Configuration.Instance.DownloadCoverArt) return;
+			if (!Configuration.Instance.DownloadCoverArt) return;
 
             var coverPath = "[null]";
 
@@ -385,7 +453,10 @@ namespace FileLiberator
 
                 var picBytes = PictureStorage.GetPictureSynchronously(new(libraryBook.Book.PictureLarge ?? libraryBook.Book.PictureId, PictureSize.Native));
                 if (picBytes.Length > 0)
+                {
                     File.WriteAllBytes(coverPath, picBytes);
+                    SetFileTime(libraryBook, coverPath);
+                }
             }
             catch (Exception ex)
             {

Source/FileLiberator/DownloadOptions.cs

@@ -21,6 +21,13 @@ namespace FileLiberator
 		public TimeSpan RuntimeLength { get; init; }
 		public OutputFormat OutputFormat { get; init; }
 		public ChapterInfo ChapterInfo { get; init; }
+		public string Title => LibraryBook.Book.Title;
+		public string Subtitle => LibraryBook.Book.Subtitle;
+		public string Publisher => LibraryBook.Book.Publisher;
+		public string Language => LibraryBook.Book.Language;
+		public string AudibleProductId => LibraryBookDto.AudibleProductId;
+		public string SeriesName => LibraryBookDto.SeriesName;
+		public float? SeriesNumber => LibraryBookDto.SeriesNumber;
 		public NAudio.Lame.LameConfig LameConfig { get; init; }
 		public string UserAgent => AudibleApi.Resources.Download_User_Agent;
 		public bool TrimOutputToChapterLength => config.AllowLibationFixup && config.StripAudibleBrandAudio;

Source/FileLiberator/DownloadPdf.cs

@@ -30,7 +30,12 @@ namespace FileLiberator
 				var actualDownloadedFilePath = await downloadPdfAsync(libraryBook, proposedDownloadFilePath);
 				var result = verifyDownload(actualDownloadedFilePath);
 
-				libraryBook.Book.UpdatePdfStatus(result.IsSuccess ? LiberatedStatus.Liberated : LiberatedStatus.NotLiberated);
+				if (result.IsSuccess)
+				{
+					SetFileTime(libraryBook, actualDownloadedFilePath);
+					SetDirectoryTime(libraryBook, Path.GetDirectoryName(actualDownloadedFilePath));
+				}
+				libraryBook.UpdatePdfStatus(result.IsSuccess ? LiberatedStatus.Liberated : LiberatedStatus.NotLiberated);
 
                 return result;
             }

Source/FileLiberator/FileLiberator.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

Source/FileLiberator/Processable.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using DataLayer;
@@ -44,7 +45,7 @@ namespace FileLiberator
 
             Serilog.Log.Logger.Information("Begin " + nameof(ProcessSingleAsync) + " {@DebugInfo}", new
             {
-                libraryBook.Book.Title,
+                libraryBook.Book.TitleWithSubtitle,
                 libraryBook.Book.AudibleProductId,
                 libraryBook.Book.Locale,
                 Account = libraryBook.Account?.ToMask() ?? "[empty]"
@@ -98,5 +99,26 @@ namespace FileLiberator
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(Completed), Book = libraryBook.LogFriendly() });
             Completed?.Invoke(this, libraryBook);
         }
-    }
+
+		protected static void SetFileTime(LibraryBook libraryBook, string file)
+			=> setFileSystemTime(libraryBook, new FileInfo(file));
+		protected static void SetDirectoryTime(LibraryBook libraryBook, string file)
+			=> setFileSystemTime(libraryBook, new DirectoryInfo(file));
+
+		private static void setFileSystemTime(LibraryBook libraryBook, FileSystemInfo fileInfo)
+		{
+			if (!fileInfo.Exists) return;
+
+            fileInfo.CreationTimeUtc = getTimeValue(Configuration.Instance.CreationTime) ?? fileInfo.CreationTimeUtc;
+            fileInfo.LastWriteTimeUtc = getTimeValue(Configuration.Instance.LastWriteTime) ?? fileInfo.LastWriteTimeUtc;			
+
+			DateTime? getTimeValue(Configuration.DateTimeSource source) => source switch
+			{
+				Configuration.DateTimeSource.Added => libraryBook.DateAdded,
+				Configuration.DateTimeSource.Published => libraryBook.Book.DatePublished,
+				_ => null,
+			};
+		}
+
+	}
 }

Source/FileLiberator/UtilityExtensions.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using AudibleUtilities;
 using DataLayer;
 using Dinah.Core;
 using LibationFileManager;
@@ -13,40 +14,53 @@ namespace FileLiberator
 		public static (string id, string title, string locale, string account) LogFriendly(this LibraryBook libraryBook)
 			=> (
 			id: libraryBook.Book.AudibleProductId,
-			title: libraryBook.Book.Title,
+			title: libraryBook.Book.TitleWithSubtitle,
 			locale: libraryBook.Book.Locale,
 			account: libraryBook.Account.ToMask()
 			);
 
 		public static async Task<AudibleApi.Api> GetApiAsync(this LibraryBook libraryBook)
 		{
-			var apiExtended = await AudibleUtilities.ApiExtended.CreateAsync(libraryBook.Account, libraryBook.Book.Locale);
+			var apiExtended = await ApiExtended.CreateAsync(libraryBook.Account, libraryBook.Book.Locale);
 			return apiExtended.Api;
 		}
 
-		public static LibraryBookDto ToDto(this LibraryBook libraryBook) => new()
+		public static LibraryBookDto ToDto(this LibraryBook libraryBook)
 		{
-			Account = libraryBook.Account,
+			using var persister = AudibleApiStorage.GetAccountsSettingsPersister();
-			DateAdded = libraryBook.DateAdded,
+			var nickname
+				= persister.AccountsSettings.Accounts
+				.FirstOrDefault(a => a.AccountId == libraryBook.Account && a.Locale.Name == libraryBook.Book.Locale)
+				?.AccountName;
 
-			AudibleProductId = libraryBook.Book.AudibleProductId,
+			return new()
-			Title = libraryBook.Book.Title ?? "",
+			{
-			Locale = libraryBook.Book.Locale,
+				Account = libraryBook.Account,
-			YearPublished = libraryBook.Book.DatePublished?.Year,
+				AccountNickname = nickname,
-			DatePublished = libraryBook.Book.DatePublished,
+				DateAdded = libraryBook.DateAdded,
 
-			Authors = libraryBook.Book.Authors.Select(c => c.Name).ToList(),
+				AudibleProductId = libraryBook.Book.AudibleProductId,
+				Title = libraryBook.Book.Title,
+				Subtitle = libraryBook.Book.Subtitle,
+				TitleWithSubtitle = libraryBook.Book.TitleWithSubtitle,
+				Locale = libraryBook.Book.Locale,
+				YearPublished = libraryBook.Book.DatePublished?.Year,
+				DatePublished = libraryBook.Book.DatePublished,
 
-			Narrators = libraryBook.Book.Narrators.Select(c => c.Name).ToList(),
+				Authors = libraryBook.Book.Authors.Select(c => c.Name).ToList(),
 
-			SeriesName = libraryBook.Book.SeriesLink.FirstOrDefault()?.Series.Name,
+				Narrators = libraryBook.Book.Narrators.Select(c => c.Name).ToList(),
-			SeriesNumber = (int?)libraryBook.Book.SeriesLink.FirstOrDefault()?.Index,
-			IsPodcast = libraryBook.Book.IsEpisodeChild(),
 
-			BitRate = libraryBook.Book.AudioFormat.Bitrate,
+				SeriesName = libraryBook.Book.SeriesLink.FirstOrDefault()?.Series.Name,
-			SampleRate = libraryBook.Book.AudioFormat.SampleRate,
+				SeriesNumber = libraryBook.Book.SeriesLink.FirstOrDefault()?.Index,
-			Channels = libraryBook.Book.AudioFormat.Channels,
+				IsPodcastParent = libraryBook.Book.IsEpisodeParent(),
-			Language = libraryBook.Book.Language
+				IsPodcast = libraryBook.Book.IsEpisodeChild() || libraryBook.Book.IsEpisodeParent(),
-		};
+
+				BitRate = libraryBook.Book.AudioFormat.Bitrate,
+				SampleRate = libraryBook.Book.AudioFormat.SampleRate,
+				Channels = libraryBook.Book.AudioFormat.Channels,
+				Language = libraryBook.Book.Language
+			};
+		}
 	}
 }

Source/FileManager/BackgroundFileSystem.cs

@@ -5,6 +5,7 @@ using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 
+#nullable enable
 namespace FileManager
 {
     /// <summary>
@@ -16,9 +17,9 @@ namespace FileManager
         public string SearchPattern { get; private set; }
         public SearchOption SearchOption { get; private set; }
 
-        private FileSystemWatcher fileSystemWatcher { get; set; }
+        private FileSystemWatcher? fileSystemWatcher { get; set; }
-        private BlockingCollection<FileSystemEventArgs> directoryChangesEvents { get; set; }
+        private BlockingCollection<FileSystemEventArgs>? directoryChangesEvents { get; set; }
-        private Task backgroundScanner { get; set; }
+        private Task? backgroundScanner { get; set; }
 
         private object fsCacheLocker { get; } = new();
         private List<LongPath> fsCache { get; } = new();
@@ -32,7 +33,7 @@ namespace FileManager
             Init();
         }
 
-        public LongPath FindFile(System.Text.RegularExpressions.Regex regex)
+        public LongPath? FindFile(System.Text.RegularExpressions.Regex regex)
         {
             lock (fsCacheLocker)
                 return fsCache.FirstOrDefault(s => regex.IsMatch(s));
@@ -49,7 +50,7 @@ namespace FileManager
             lock (fsCacheLocker)
             {
                 fsCache.Clear();
-                fsCache.AddRange(FileUtility.SaferEnumerateFiles(RootDirectory, SearchPattern, SearchOption));
+                fsCache.AddRange(SafestEnumerateFiles(RootDirectory));
             }
         }
 
@@ -58,7 +59,7 @@ namespace FileManager
             Stop();
 
             lock (fsCacheLocker)
-                fsCache.AddRange(FileUtility.SaferEnumerateFiles(RootDirectory, SearchPattern, SearchOption));
+                fsCache.AddRange(SafestEnumerateFiles(RootDirectory));
 
             directoryChangesEvents = new BlockingCollection<FileSystemEventArgs>();
 			fileSystemWatcher = new FileSystemWatcher(RootDirectory)
@@ -105,13 +106,13 @@ namespace FileManager
 
         private void FileSystemWatcher_Changed(object sender, FileSystemEventArgs e)
         {
-            directoryChangesEvents.Add(e);
+            directoryChangesEvents?.Add(e);
         }
 
         #region Background Thread
         private void BackgroundScanner()
         {
-            while (directoryChangesEvents.TryTake(out FileSystemEventArgs change, -1))
+            while (directoryChangesEvents?.TryTake(out var change, -1) is true)
             {
                 lock (fsCacheLocker)
                     UpdateLocalCache(change);
@@ -151,11 +152,23 @@ namespace FileManager
             if (Path.GetFileName(path).Contains("LibationContext.db") || !File.Exists(path) && !Directory.Exists(path))
                 return;
             if (File.GetAttributes(path).HasFlag(FileAttributes.Directory))
-                AddUniqueFiles(FileUtility.SaferEnumerateFiles(path, SearchPattern, SearchOption));
+                AddUniqueFiles(SafestEnumerateFiles(path));
             else
                 AddUniqueFile(path);
         }
 
+        private IEnumerable<LongPath> SafestEnumerateFiles(string path)
+        {
+            try
+            {
+                return FileUtility.SaferEnumerateFiles(path, SearchPattern, SearchOption);
+            }
+            catch
+            {
+                return [];
+            }
+        }
+
         private void AddUniqueFiles(IEnumerable<LongPath> newFiles)
         {
             foreach (var file in newFiles)

Source/FileManager/FileManager.csproj

@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Dinah.Core" Version="7.2.2.1" />
+    <PackageReference Include="Dinah.Core" Version="9.0.0.1" />
-    <PackageReference Include="Polly" Version="7.2.3" />
+    <PackageReference Include="Polly" Version="8.5.0" />
   </ItemGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">

Source/FileManager/FileUtility.cs

@@ -1,27 +1,27 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
 using Dinah.Core;
 using Polly;
 using Polly.Retry;
-using Dinah.Core.Collections.Generic;
 
+#nullable enable
 namespace FileManager
 {
 	public static class FileUtility
 	{
-
-
 		/// <summary>
 		/// "txt" => ".txt"
 		/// <br />".txt" => ".txt"
 		/// <br />null or whitespace => ""
 		/// </summary>
-		public static string GetStandardizedExtension(string extension)
+		[return: NotNull]
+		public static string GetStandardizedExtension(string? extension)
 			=> string.IsNullOrWhiteSpace(extension)
-			? (extension ?? "")?.Trim()
+			? string.Empty
 			: '.' + extension.Trim().Trim('.');
 
 		/// <summary>
@@ -49,18 +49,18 @@ namespace FileManager
 		/// <br/>- ensure uniqueness
 		/// <br/>- enforce max file length
 		/// </summary>
-		public static LongPath GetValidFilename(LongPath path, ReplacementCharacters replacements, string fileExtension, bool returnFirstExisting = false)
+		public static LongPath GetValidFilename(LongPath path, ReplacementCharacters replacements, string? fileExtension, bool returnFirstExisting = false)
 		{
 			ArgumentValidator.EnsureNotNull(path, nameof(path));
-			ArgumentValidator.EnsureNotNull(fileExtension, nameof(fileExtension));
+			ArgumentValidator.EnsureNotNull(replacements, nameof(replacements));
+
 			fileExtension = GetStandardizedExtension(fileExtension);
 
 			// remove invalid chars
 			path = GetSafePath(path, replacements);
 
 			// ensure uniqueness and check lengths
-			var dir = Path.GetDirectoryName(path);
+			var dir = Path.GetDirectoryName(path)?.TruncateFilename(LongPath.MaxDirectoryLength) ?? string.Empty;
-			dir = dir?.TruncateFilename(LongPath.MaxDirectoryLength) ?? string.Empty;
 
 			var fileName = Path.GetFileName(path);
 			var extIndex = fileName.LastIndexOf(fileExtension, StringComparison.OrdinalIgnoreCase);
@@ -85,6 +85,7 @@ namespace FileManager
 		public static LongPath GetSafePath(LongPath path, ReplacementCharacters replacements)
 		{
 			ArgumentValidator.EnsureNotNull(path, nameof(path));
+			ArgumentValidator.EnsureNotNull(replacements, nameof(replacements));
 
 			var pathNoPrefix = path.PathWithoutPrefix;
 
@@ -147,14 +148,24 @@ namespace FileManager
 
 		/// <summary>
 		/// Move file.
-		/// <br/>- Ensure valid file name path: remove invalid chars, ensure uniqueness, enforce max file length
+		/// <br/>- Ensure valid file name path: remove invalid chars, enforce max file length
 		/// <br/>- Perform <see cref="SaferMove"/>
-		/// <br/>- Return valid path
 		/// </summary>
-		public static string SaferMoveToValidPath(LongPath source, LongPath destination, ReplacementCharacters replacements, string extension = null)
+		/// <param name="source">Name of the file to move</param>
+		/// <param name="destination">The new path and name for the file.</param>
+		/// <param name="replacements">Rules for replacing illegal file path characters</param>
+		/// <param name="extension">File extension override to use for <paramref name="destination"/></param>
+		/// <param name="overwrite">If <c>false</c> and <paramref name="destination"/> exists, append " (n)" to filename and try again.</param>
+		/// <returns>The actual destination filename</returns>
+		public static string SaferMoveToValidPath(
+			LongPath source,
+			LongPath destination,
+			ReplacementCharacters replacements,
+			string? extension = null,
+			bool overwrite = false)
 		{
-			extension = extension ?? Path.GetExtension(source);
+			extension ??= Path.GetExtension(source);
-			destination = GetValidFilename(destination, replacements, extension);
+			destination = GetValidFilename(destination, replacements, extension, overwrite);
 			SaferMove(source, destination);
 			return destination;
 		}
@@ -204,6 +215,9 @@ namespace FileManager
 					SaferDelete(destination);
 
 					var dir = Path.GetDirectoryName(destination);
+					if (dir is null)
+						throw new DirectoryNotFoundException();
+
 					Serilog.Log.Logger.Debug("Attempt to create directory: {@DebugText}", new { dir });
 					Directory.CreateDirectory(dir);
 

Source/FileManager/LogArchiver.cs

@@ -8,9 +8,10 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
+#nullable enable
 namespace FileManager
 {
-	public sealed class LogArchiver : IAsyncDisposable
+	public sealed class LogArchiver : IAsyncDisposable, IDisposable
 	{
 		public Encoding Encoding { get; set; }
 		public string FileName { get; }
@@ -39,28 +40,28 @@ namespace FileManager
 				e.Delete();
 		}
 
-		public async Task AddFileAsync(string name, JObject contents, string comment = null)
+		public async Task AddFileAsync(string name, JObject contents, string? comment = null)
 		{
 			ArgumentValidator.EnsureNotNull(contents, nameof(contents));
 			await AddFileAsync(name, Encoding.GetBytes(contents.ToString(Newtonsoft.Json.Formatting.Indented)), comment);
 		}
 
-		public async Task AddFileAsync(string name, string contents, string comment = null)
+		public async Task AddFileAsync(string name, string contents, string? comment = null)
 		{
 			ArgumentValidator.EnsureNotNull(contents, nameof(contents));
 			await AddFileAsync(name, Encoding.GetBytes(contents), comment);
 		}
 
-		public Task AddFileAsync(string name, ReadOnlyMemory<byte> contents, string comment = null)
+		public Task AddFileAsync(string name, ReadOnlyMemory<byte> contents, string? comment = null)
 		{
 			ArgumentValidator.EnsureNotNull(name, nameof(name));
 
 			name = ReplacementCharacters.Barebones.ReplaceFilenameChars(name);
-			return Task.Run(() => AddfileInternal(name, contents.Span, comment));			
+			return Task.Run(() => AddFileInternal(name, contents.Span, comment));			
 		}
 
 		private readonly object lockObj = new();
-		private void AddfileInternal(string name, ReadOnlySpan<byte> contents, string comment)
+		private void AddFileInternal(string name, ReadOnlySpan<byte> contents, string? comment)
 		{
 			lock (lockObj)
 			{
@@ -73,5 +74,7 @@ namespace FileManager
 		}
 
 		public async ValueTask DisposeAsync() => await Task.Run(archive.Dispose);
+
+		public void Dispose() => archive.Dispose();
 	}
 }

Source/FileManager/LongPath.cs

@@ -1,9 +1,11 @@
 using Newtonsoft.Json;
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
 
+#nullable enable
 namespace FileManager
 {
 	public class LongPath
@@ -15,9 +17,9 @@ namespace FileManager
 		public static readonly int MaxPathLength;
 		private const int WIN_MAX_PATH = 260;
 		private const string WIN_LONG_PATH_PREFIX = @"\\?\";
-		internal static readonly bool IsWindows = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
+		internal static readonly bool IsWindows = RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
-		internal static readonly bool IsLinux = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
+		internal static readonly bool IsLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
-		internal static readonly bool IsOSX = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
+		internal static readonly bool IsOSX = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
 	
 		public string Path { get; }
 
@@ -60,7 +62,8 @@ namespace FileManager
 			=> IsWindows ? filename.Length
 			: Encoding.UTF8.GetByteCount(filename);
 
-		public static implicit operator LongPath(string path)
+		[return: NotNullIfNotNull(nameof(path))]
+		public static implicit operator LongPath?(string? path)
 		{
 			if (path is null) return null;
 
@@ -93,7 +96,8 @@ namespace FileManager
 			}
 		}
 
-		public static implicit operator string(LongPath path) => path?.Path;
+		[return: NotNullIfNotNull(nameof(path))]
+		public static implicit operator string?(LongPath? path) => path?.Path;
 
 		[JsonIgnore]
 		public string ShortPathName
@@ -127,8 +131,6 @@ namespace FileManager
 				//for newly-created entries in ther file system. Existing entries made while
 				//8dot3 names were disabled will not be reachable by short paths.
 
-				if (Path is null) return null;
-
 				StringBuilder shortPathBuffer = new(MaxPathLength);
 				GetShortPathName(Path, shortPathBuffer, MaxPathLength);
 				return shortPathBuffer.ToString();
@@ -141,7 +143,6 @@ namespace FileManager
 			get
 			{
 				if (!IsWindows) return Path;
-				if (Path is null) return null;
 
 				StringBuilder longPathBuffer = new(MaxPathLength);
 				GetLongPathName(Path, longPathBuffer, MaxPathLength);
@@ -156,13 +157,19 @@ namespace FileManager
 			{
 				if (!IsWindows) return Path;
 				return
-					Path?.StartsWith(WIN_LONG_PATH_PREFIX) == true ? Path.Remove(0, WIN_LONG_PATH_PREFIX.Length)
+					Path.StartsWith(WIN_LONG_PATH_PREFIX)
-					:Path;
+					? Path.Remove(0, WIN_LONG_PATH_PREFIX.Length)
+					: Path;
 			}
 		}
 
 		public override string ToString() => Path;
 
+		public override int GetHashCode() => Path.GetHashCode();
+		public override bool Equals(object? obj) => obj is LongPath other && Path == other.Path;
+		public static bool operator ==(LongPath? path1, LongPath? path2) => path1?.Equals(path2) is true;
+		public static bool operator !=(LongPath? path1, LongPath? path2) => path1 is null || path2 is null || !path1.Equals(path2);
+
 
 		[DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
 		private static extern int GetShortPathName([MarshalAs(UnmanagedType.LPWStr)] string path, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder shortPath, int shortPathLength);

Source/FileManager/NamingTemplate/ConditionalTagCollection[TClass].cs

@@ -1,7 +1,9 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq.Expressions;
 using System.Text.RegularExpressions;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 internal interface IClosingPropertyTag : IPropertyTag
@@ -17,7 +19,7 @@ internal interface IClosingPropertyTag : IPropertyTag
 	/// <param name="exactName">The <paramref name="templateString"/> substring that was matched.</param>
 	/// <param name="propertyTag">The registered <see cref="IPropertyTag"/></param>
 	/// <returns>True if the <paramref name="templateString"/> starts with this tag.</returns>
-	bool StartsWithClosing(string templateString, out string exactName, out IClosingPropertyTag propertyTag);
+	bool StartsWithClosing(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IClosingPropertyTag? propertyTag);
 }
 
 public class ConditionalTagCollection<TClass> : TagCollection
@@ -37,6 +39,7 @@ public class ConditionalTagCollection<TClass> : TagCollection
 	
 	private class ConditionalTag : TagBase, IClosingPropertyTag
 	{
+		public override Regex NameMatcher { get; }
 		public Regex NameCloseMatcher { get; }
 
 		public ConditionalTag(ITemplateTag templateTag, RegexOptions options, Expression conditionExpression)
@@ -46,7 +49,7 @@ public class ConditionalTagCollection<TClass> : TagCollection
 			NameCloseMatcher = new Regex($"^<-{templateTag.TagName}>", options);
 		}
 
-		public bool StartsWithClosing(string templateString, out string exactName, out IClosingPropertyTag propertyTag)
+		public bool StartsWithClosing(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IClosingPropertyTag? propertyTag)
 		{
 			var match = NameCloseMatcher.Match(templateString);
 			if (match.Success)

Source/FileManager/NamingTemplate/NamingTemplate.cs

@@ -1,19 +1,21 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Linq.Expressions;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 public class NamingTemplate
 {
-	public string TemplateText { get; private set; }
+	public string TemplateText { get; private set; } = string.Empty;
 	public IEnumerable<ITemplateTag> TagsInUse => _tagsInUse;
 	public IEnumerable<ITemplateTag> TagsRegistered => TagCollections.SelectMany(t => t).DistinctBy(t => t.TagName);
 	public IEnumerable<string> Warnings => errors.Concat(warnings);
 	public IEnumerable<string> Errors => errors;
 
-	private Delegate templateToString;
+	private Delegate? templateToString;
 	private readonly List<string> warnings = new();
 	private readonly List<string> errors = new();
 	private readonly IEnumerable<TagCollection> TagCollections;
@@ -30,6 +32,9 @@ public class NamingTemplate
 	/// <param name="propertyClasses">Instances of the TClass used in <see cref="PropertyTagCollection{TClass}"/> and <see cref="ConditionalTagCollection{TClass}"/></param>
 	public TemplatePart Evaluate(params object[] propertyClasses)
 	{
+		if (templateToString is null)
+			throw new InvalidOperationException();
+
 		// Match propertyClasses to the arguments required by templateToString.DynamicInvoke(). 
 		// First parameter is "this", so ignore it.
 		var delegateArgTypes = templateToString.Method.GetParameters().Skip(1);
@@ -39,7 +44,7 @@ public class NamingTemplate
 		if (args.Length != delegateArgTypes.Count())
 			throw new ArgumentException($"This instance of {nameof(NamingTemplate)} requires the following arguments: {string.Join(", ", delegateArgTypes.Select(t => t.Name).Distinct())}");
 
-		return ((TemplatePart)templateToString.DynamicInvoke(args)).FirstPart;
+		return (templateToString.DynamicInvoke(args) as TemplatePart)!.FirstPart;
 	}
 
 	/// <summary>Parse a template string to a <see cref="NamingTemplate"/></summary>
@@ -69,7 +74,7 @@ public class NamingTemplate
 	}
 
 	/// <summary>Builds an <see cref="Expression"/> tree that will evaluate to a <see cref="TemplatePart"/></summary>
-	private static Expression GetExpressionTree(BinaryNode node)
+	private static Expression GetExpressionTree(BinaryNode? node)
 	{
 		if (node is null) return TemplatePart.Blank;
 		else if (node.IsValue) return node.Expression;
@@ -81,10 +86,10 @@ public class NamingTemplate
 	}
 
 	/// <summary>Parse a template string into a <see cref="BinaryNode"/> tree</summary>
-	private BinaryNode IntermediateParse(string templateString)
+	private BinaryNode IntermediateParse(string? templateString)
 	{
 		if (templateString is null)
-			throw new NullReferenceException(ERROR_NULL_IS_INVALID);
+			throw new ArgumentException(ERROR_NULL_IS_INVALID);
 		else if (string.IsNullOrEmpty(templateString))
 			warnings.Add(WARNING_EMPTY);
 		else if (string.IsNullOrWhiteSpace(templateString))
@@ -93,12 +98,12 @@ public class NamingTemplate
 		TemplateText = templateString;
 
 		BinaryNode topNode = BinaryNode.CreateRoot();
-		BinaryNode currentNode = topNode;
+		BinaryNode? currentNode = topNode;
 		List<char> literalChars = new();
 
 		while (templateString.Length > 0)
 		{
-			if (StartsWith(templateString, out string exactPropertyName, out var propertyTag, out var valueExpression))
+			if (StartsWith(templateString, out var exactPropertyName, out var propertyTag, out var valueExpression))
 			{
 				checkAndAddLiterals();
 
@@ -116,7 +121,7 @@ public class NamingTemplate
 			{
 				checkAndAddLiterals();
 
-				BinaryNode lastParenth = currentNode;
+				BinaryNode? lastParenth = currentNode;
 
 				while (lastParenth?.IsConditional is false)
 					lastParenth = lastParenth.Parent;
@@ -168,7 +173,7 @@ public class NamingTemplate
 		}
 	}
 
-	private bool StartsWith(string template, out string exactName, out IPropertyTag propertyTag, out Expression valueExpression)
+	private bool StartsWith(string template, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IPropertyTag? propertyTag, [NotNullWhen(true)] out Expression? valueExpression)
 	{
 		foreach (var pc in TagCollections)
 		{
@@ -182,7 +187,7 @@ public class NamingTemplate
 		return false;
 	}
 
-	private bool StartsWithClosing(string template, out string exactName, out IClosingPropertyTag closingPropertyTag)
+	private bool StartsWithClosing(string template, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IClosingPropertyTag? closingPropertyTag)
 	{
 		foreach (var pc in TagCollections)
 		{
@@ -198,36 +203,36 @@ public class NamingTemplate
 	private class BinaryNode
 	{
 		public string Name { get; }
-		public BinaryNode Parent { get; private set; }
+		public BinaryNode? Parent { get; private set; }
-		public BinaryNode RightChild { get; private set; }
+		public BinaryNode? RightChild { get; private set; }
-		public BinaryNode LeftChild { get; private set; }
+		public BinaryNode? LeftChild { get; private set; }
-		public Expression Expression { get; private init; }
+		public Expression Expression { get; }
 		public bool IsConditional { get; private init; } = false;
 		public bool IsValue { get; private init; } = false;
 
-		public static BinaryNode CreateRoot() => new("Root");
+		public static BinaryNode CreateRoot() => new("Root", Expression.Empty());
 
-		public static BinaryNode CreateValue(string literal) => new("Literal")
+		public static BinaryNode CreateValue(string literal)
-		{
+			=> new("Literal", TemplatePart.CreateLiteral(literal))
-			IsValue = true,
+			{
-			Expression = TemplatePart.CreateLiteral(literal)
+				IsValue = true
-		};
+			};
 
-		public static BinaryNode CreateValue(ITemplateTag templateTag, Expression property) => new(templateTag.TagName)
+		public static BinaryNode CreateValue(ITemplateTag templateTag, Expression property)
-		{
+			=> new(templateTag.TagName, TemplatePart.CreateProperty(templateTag, property))
-			IsValue = true,
+			{
-			Expression = TemplatePart.CreateProperty(templateTag, property)
+				IsValue = true
-		};
+			};
 
-		public static BinaryNode CreateConditional(ITemplateTag templateTag, Expression property) => new(templateTag.TagName)
+		public static BinaryNode CreateConditional(ITemplateTag templateTag, Expression property)
-		{
+			=> new(templateTag.TagName, property)
-			IsConditional = true,
+			{
-			Expression = property
+				IsConditional = true
-		};
+			};
 
 		private static BinaryNode CreateConcatenation(BinaryNode left, BinaryNode right)
 		{
-			var newNode = new BinaryNode("Concatenation")
+			var newNode = new BinaryNode("Concatenation", Expression.Empty())
 			{
 				LeftChild = left,
 				RightChild = right
@@ -237,7 +242,12 @@ public class NamingTemplate
 			return newNode;
 		}
 
-		private BinaryNode(string name) => Name = name;
+		private BinaryNode(string name, Expression expression)
+		{
+			Name = name;
+			Expression = expression;
+		}
+
 		public override string ToString() => Name;
 
 		public BinaryNode AddNewNode(BinaryNode newNode)

Source/FileManager/NamingTemplate/PropertyTagCollection[TClass].cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Linq.Expressions;
 using System.Text.RegularExpressions;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 public delegate string PropertyFormatter<T>(ITemplateTag templateTag, T value, string formatString);
@@ -37,7 +38,7 @@ public class PropertyTagCollection<TClass> : TagCollection
 	/// <param name="formatter">Optional formatting function that accepts the <typeparamref name="TProperty"/> property
 	/// and a formatting string and returnes the value the formatted string. If <see cref="null"/>, use the default
 	/// <typeparamref name="TProperty"/> formatter if present, or <see cref="object.ToString"/></param>
-	public void Add<TProperty>(ITemplateTag templateTag, Func<TClass, TProperty?> propertyGetter, PropertyFormatter<TProperty> formatter = null)
+	public void Add<TProperty>(ITemplateTag templateTag, Func<TClass, TProperty?> propertyGetter, PropertyFormatter<TProperty>? formatter = null)
 		where TProperty : struct
 		=> RegisterWithFormatter(templateTag, propertyGetter, formatter);
 
@@ -59,7 +60,7 @@ public class PropertyTagCollection<TClass> : TagCollection
 	/// <param name="formatter">Optional formatting function that accepts the <typeparamref name="TProperty"/> property
 	/// and a formatting string and returnes the value formatted to string. If <see cref="null"/>, use the default
 	/// <typeparamref name="TProperty"/> formatter if present, or <see cref="object.ToString"/></param>
-	public void Add<TProperty>(ITemplateTag templateTag, Func<TClass, TProperty> propertyGetter, PropertyFormatter<TProperty> formatter = null)
+	public void Add<TProperty>(ITemplateTag templateTag, Func<TClass, TProperty> propertyGetter, PropertyFormatter<TProperty>? formatter = null)
 		=> RegisterWithFormatter(templateTag, propertyGetter, formatter);
 
 	/// <summary>
@@ -72,14 +73,15 @@ public class PropertyTagCollection<TClass> : TagCollection
 		=> RegisterWithToString(templateTag, propertyGetter, toString);
 
 	private void RegisterWithFormatter<TProperty, TPropertyValue>
-		(ITemplateTag templateTag, Func<TClass, TProperty> propertyGetter, PropertyFormatter<TPropertyValue> formatter)
+		(ITemplateTag templateTag, Func<TClass, TProperty> propertyGetter, PropertyFormatter<TPropertyValue>? formatter)
 	{
 		ArgumentValidator.EnsureNotNull(templateTag, nameof(templateTag));
 		ArgumentValidator.EnsureNotNull(propertyGetter, nameof(propertyGetter));
 
 		var expr = Expression.Call(Expression.Constant(propertyGetter.Target), propertyGetter.Method, Parameter);
+		formatter ??= GetDefaultFormatter<TPropertyValue>();
 
-		if ((formatter ??= GetDefaultFormatter<TPropertyValue>()) is null)
+		if (formatter is null)
 			AddPropertyTag(new PropertyTag<TPropertyValue>(templateTag, Options, expr, ToStringFunc));
 		else
 			AddPropertyTag(new PropertyTag<TPropertyValue>(templateTag, Options, expr, formatter));
@@ -97,7 +99,7 @@ public class PropertyTagCollection<TClass> : TagCollection
 
 	private static string ToStringFunc<T>(T propertyValue) => propertyValue?.ToString() ?? "";
 
-	private PropertyFormatter<T> GetDefaultFormatter<T>()
+	private PropertyFormatter<T>? GetDefaultFormatter<T>()
 	{
 		try
 		{
@@ -109,6 +111,7 @@ public class PropertyTagCollection<TClass> : TagCollection
 
 	private class PropertyTag<TPropertyValue> : TagBase
 	{
+		public override Regex NameMatcher { get; }
 		private Func<Expression, string, Expression> CreateToStringExpression { get; }
 
 		public PropertyTag(ITemplateTag templateTag, RegexOptions options, Expression propertyGetter, PropertyFormatter<TPropertyValue> formatter)

Source/FileManager/NamingTemplate/TagBase.cs

@@ -1,7 +1,9 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq.Expressions;
 using System.Text.RegularExpressions;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 internal interface IPropertyTag
@@ -22,13 +24,13 @@ internal interface IPropertyTag
 	/// <param name="exactName">The <paramref name="templateString"/> substring that was matched.</param>
 	/// <param name="propertyValue">The <see cref="Expression"/> that returns the property's value</param>
 	/// <returns>True if the <paramref name="templateString"/> starts with this tag.</returns>
-	bool StartsWith(string templateString, out string exactName, out Expression propertyValue);
+	bool StartsWith(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out Expression? propertyValue);
 }
 
 internal abstract class TagBase : IPropertyTag
 {
 	public ITemplateTag TemplateTag { get; }
-	public Regex NameMatcher { get; protected init; }
+	public abstract Regex NameMatcher { get; }
 	public Type ReturnType => ValueExpression.Type;
 	protected Expression ValueExpression { get; }
 
@@ -43,7 +45,7 @@ internal abstract class TagBase : IPropertyTag
 	/// <param name="formatter">The optional format string in the match inside the square brackets</param>
 	protected abstract Expression GetTagExpression(string exactName, string formatter);
 
-	public bool StartsWith(string templateString, out string exactName, out Expression propertyValue)
+	public bool StartsWith(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out Expression? propertyValue)
 	{
 		var match = NameMatcher.Match(templateString);
 		if (match.Success)

Source/FileManager/NamingTemplate/TagCollection.cs

@@ -1,10 +1,12 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Linq.Expressions;
 using System.Text.RegularExpressions;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 /// <summary>A collection of <see cref="IPropertyTag"/>s registered to a single <see cref="Type"/>.</summary>
@@ -32,7 +34,7 @@ public abstract class TagCollection : IEnumerable<ITemplateTag>
 	/// <param name="exactName">The <paramref name="templateString"/> substring that was matched.</param>
 	/// <param name="propertyValue">The <see cref="Expression"/> that returns the <paramref name="propertyTag"/>'s value</param>
 	/// <returns>True if the <paramref name="templateString"/> starts with a tag registered in this class.</returns>
-	internal bool StartsWith(string templateString, out string exactName, out IPropertyTag propertyTag, out Expression propertyValue)
+	internal bool StartsWith(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IPropertyTag? propertyTag, [NotNullWhen(true)] out Expression? propertyValue)
 	{
 		foreach (var p in PropertyTags)
 		{
@@ -57,7 +59,7 @@ public abstract class TagCollection : IEnumerable<ITemplateTag>
 	/// <param name="exactName">The <paramref name="templateString"/> substring that was matched.</param>
 	/// <param name="closingPropertyTag">The registered <see cref="IClosingPropertyTag"/></param>
 	/// <returns>True if the <paramref name="templateString"/> starts with this tag.</returns>
-	internal bool StartsWithClosing(string templateString, out string exactName, out IClosingPropertyTag closingPropertyTag)
+	internal bool StartsWithClosing(string templateString, [NotNullWhen(true)] out string? exactName, [NotNullWhen(true)] out IClosingPropertyTag? closingPropertyTag)
 	{
 		foreach (var  cg in PropertyTags.OfType<IClosingPropertyTag>())
 		{

Source/FileManager/NamingTemplate/TemplatePart.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Linq.Expressions;
 using System.Reflection;
 
+#nullable enable
 namespace FileManager.NamingTemplate;
 
 /// <summary>Represents one part of an evaluated <see cref="NamingTemplate"/>.</summary>
@@ -15,13 +16,13 @@ public class TemplatePart : IEnumerable<TemplatePart>
 
 	/// <summary> The <see cref="IPropertyTag"/>'s <see cref="ITemplateTag"/> if <see cref="TemplatePart"/> is
 	/// a registered property, otherwise <see cref="null"/> for string literals. </summary>
-	public ITemplateTag TemplateTag { get; }
+	public ITemplateTag? TemplateTag { get; }
 
 	/// <summary>The evaluated string.</summary>
 	public string Value { get; }
 
-	private TemplatePart previous;
+	private TemplatePart? previous;
-	private TemplatePart next;
+	private TemplatePart? next;
 	private TemplatePart(string name, string value)
 	{
 		TagName = name;
@@ -53,14 +54,33 @@ public class TemplatePart : IEnumerable<TemplatePart>
 	private static Expression CreateExpression(string name, Expression value)
 		=> Expression.New(constructorInfo, Expression.Constant(name), value);
 
-	private static readonly ConstructorInfo constructorInfo
+	private static readonly ConstructorInfo constructorInfo;
-		= typeof(TemplatePart).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, new Type[] { typeof(string), typeof(string) });
+	private static readonly ConstructorInfo tagTemplateConstructorInfo;
+	private static readonly MethodInfo addMethodInfo;
+	static TemplatePart()
+	{
+		var type = typeof(TemplatePart);
 
-	private static readonly ConstructorInfo tagTemplateConstructorInfo
+		if (type.GetConstructor(
-		= typeof(TemplatePart).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, new Type[] { typeof(ITemplateTag), typeof(string)	});
+			BindingFlags.NonPublic | BindingFlags.Instance,
+			new Type[] { typeof(string), typeof(string) }) is not ConstructorInfo c1)
+			throw new MissingMethodException(nameof(TemplatePart));
 
-	private static readonly MethodInfo addMethodInfo
+		if (type.GetConstructor(
-		= typeof(TemplatePart).GetMethod(nameof(Concatenate), BindingFlags.NonPublic | BindingFlags.Static, new Type[] { typeof(TemplatePart), typeof(TemplatePart) });
+			BindingFlags.NonPublic | BindingFlags.Instance,
+			new Type[] { typeof(ITemplateTag), typeof(string) }) is not ConstructorInfo c2)
+			throw new MissingMethodException(nameof(TemplatePart));
+
+		if (type.GetMethod(
+			nameof(Concatenate),
+			BindingFlags.NonPublic | BindingFlags.Static,
+			new Type[] { typeof(TemplatePart), typeof(TemplatePart) }) is not MethodInfo m1)
+			throw new MissingMethodException(nameof(Concatenate));
+
+		constructorInfo = c1;
+		tagTemplateConstructorInfo = c2;
+		addMethodInfo = m1;
+	}
 
 	public IEnumerator<TemplatePart> GetEnumerator()
 	{

Source/FileManager/PersistentDictionary.cs

@@ -1,10 +1,12 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
+#nullable enable
 namespace FileManager
 {
     public class PersistentDictionary
@@ -13,19 +15,19 @@ namespace FileManager
         public bool IsReadOnly { get; }
 
         // optimize for strings. expectation is most settings will be strings and a rare exception will be something else
-        private Dictionary<string, string> stringCache { get; } = new Dictionary<string, string>();
+        private Dictionary<string, string?> stringCache { get; } = new();
-        private Dictionary<string, object> objectCache { get; } = new Dictionary<string, object>();
+        private Dictionary<string, object?> objectCache { get; } = new();
 
         public PersistentDictionary(string filepath, bool isReadOnly = false)
         {
             Filepath = filepath;
             IsReadOnly = isReadOnly;
 
-            if (File.Exists(Filepath))
+            if (File.Exists(Filepath) || Path.GetDirectoryName(Filepath) is not string dirName)
                 return;
 
             // will create any missing directories, incl subdirectories. if all already exist: no action
-            Directory.CreateDirectory(Path.GetDirectoryName(filepath));
+            Directory.CreateDirectory(dirName);
 
             if (IsReadOnly)
                 return;
@@ -33,13 +35,14 @@ namespace FileManager
             createNewFile();
         }
 
-        public string GetString(string propertyName, string defaultValue = null)
+		[return: NotNullIfNotNull(nameof(defaultValue))]
+		public string? GetString(string propertyName, string? defaultValue = null)
         {
             if (!stringCache.ContainsKey(propertyName))
             {
                 var jObject = readFile();
                 if (jObject.ContainsKey(propertyName))
-                    stringCache[propertyName] = jObject[propertyName].Value<string>();
+                    stringCache[propertyName] = jObject[propertyName]?.Value<string>();
                 else
                     stringCache[propertyName] = defaultValue;
             }
@@ -47,7 +50,8 @@ namespace FileManager
             return stringCache[propertyName];
         }
 
-        public T GetNonString<T>(string propertyName, T defaultValue = default)
+        [return: NotNullIfNotNull(nameof(defaultValue))]
+        public T? GetNonString<T>(string propertyName, T? defaultValue = default)
         {
             var obj = GetObject(propertyName);
 
@@ -72,21 +76,21 @@ namespace FileManager
             throw new InvalidCastException($"{obj.GetType()} is not convertible to {typeof(T)}");
         }
 
-        public object GetObject(string propertyName)
+        public object? GetObject(string propertyName)
         {
             if (!objectCache.ContainsKey(propertyName))
             {
                 var jObject = readFile();
                 if (!jObject.ContainsKey(propertyName))
                     return null;
-                objectCache[propertyName] = jObject[propertyName].Value<object>();
+                objectCache[propertyName] = jObject[propertyName]?.Value<object>();
             }
 
             return objectCache[propertyName];
         }
 
-        public string GetStringFromJsonPath(string jsonPath, string propertyName) => GetStringFromJsonPath($"{jsonPath}.{propertyName}");
+        public string? GetStringFromJsonPath(string jsonPath, string propertyName) => GetStringFromJsonPath($"{jsonPath}.{propertyName}");
-        public string GetStringFromJsonPath(string jsonPath)
+        public string? GetStringFromJsonPath(string jsonPath)
         {
             if (!stringCache.ContainsKey(jsonPath))
             {
@@ -96,7 +100,7 @@ namespace FileManager
                     var token = jObject.SelectToken(jsonPath);
                     if (token is null)
                         return null;
-                    stringCache[jsonPath] = (string)token;
+                    stringCache[jsonPath] = token.Value<string>();
                 }
                 catch
                 {
@@ -110,7 +114,7 @@ namespace FileManager
         public bool Exists(string propertyName) => readFile().ContainsKey(propertyName);
 
         private object locker { get; } = new object();
-        public void SetString(string propertyName, string newValue)
+        public void SetString(string propertyName, string? newValue)
         {
             // only do this check in string cache, NOT object cache
             if (stringCache.ContainsKey(propertyName) && stringCache[propertyName] == newValue)
@@ -122,7 +126,7 @@ namespace FileManager
             writeFile(propertyName, newValue);
         }
 
-        public void SetNonString(string propertyName, object newValue)
+        public void SetNonString(string propertyName, object? newValue)
         {
             // set cache
             objectCache[propertyName] = newValue;
@@ -131,7 +135,36 @@ namespace FileManager
             writeFile(propertyName, parsedNewValue);
         }
 
-        private void writeFile(string propertyName, JToken newValue)
+        public bool RemoveProperty(string propertyName)
+        {
+            if (IsReadOnly)
+                return false;
+
+            var success = false;
+            try
+            {
+                lock (locker)
+                {
+                    var jObject = readFile();
+
+                    if (!jObject.ContainsKey(propertyName))
+                        return false;
+
+                    jObject.Remove(propertyName);
+
+                    var endContents = JsonConvert.SerializeObject(jObject, Formatting.Indented);
+
+                    File.WriteAllText(Filepath, endContents);
+                    success = true;
+                }
+                Serilog.Log.Logger.Information("Removed property. {@DebugInfo}", propertyName);
+            }
+            catch { }
+
+			return success;
+		}
+
+        private void writeFile(string propertyName, JToken? newValue)
         {
             if (IsReadOnly)
                 return;
@@ -161,7 +194,7 @@ namespace FileManager
 
         /// <summary>WILL ONLY set if already present. WILL NOT create new</summary>
         /// <returns>Value was changed</returns>
-        public bool SetWithJsonPath(string jsonPath, string propertyName, string newValue, bool suppressLogging = false)
+        public bool SetWithJsonPath(string jsonPath, string propertyName, string? newValue, bool suppressLogging = false)
         {
             if (IsReadOnly)
                 return false;
@@ -213,7 +246,7 @@ namespace FileManager
             return true;
         }
 
-        private static string formatValueForLog(string value)
+        private static string formatValueForLog(string? value)
             => value is null ? "[null]"
             : string.IsNullOrEmpty(value) ? "[empty]"
             : string.IsNullOrWhiteSpace(value) ? $"[whitespace. Length={value.Length}]"
@@ -254,7 +287,6 @@ namespace FileManager
         private void createNewFile()
         {
             File.WriteAllText(Filepath, "{}");
-            System.Threading.Thread.Sleep(100);
         }
     }
 }

Source/FileManager/ReplacementCharacters.cs

@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 
+#nullable enable
 namespace FileManager
 {
 	public record Replacement
@@ -59,7 +60,7 @@ namespace FileManager
 	[JsonConverter(typeof(ReplacementCharactersConverter))]
 	public class ReplacementCharacters
 	{
-		public override bool Equals(object obj)
+		public override bool Equals(object? obj)
 		{
 			if (obj is ReplacementCharacters second && Replacements.Count == second.Replacements.Count)
 			{
@@ -173,7 +174,7 @@ namespace FileManager
 				Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar
 			}).ToArray();
 
-		public IReadOnlyList<Replacement> Replacements { get; init; }
+		required public IReadOnlyList<Replacement> Replacements { get; init; }
 		private string DefaultReplacement => Replacements[0].ReplacementString;
 		private Replacement ForwardSlash => Replacements[1];
 		private Replacement BackSlash => Replacements[2];
@@ -298,12 +299,14 @@ namespace FileManager
 		public override bool CanConvert(Type objectType)
 			=> objectType == typeof(ReplacementCharacters);
 
-		public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+		public override object ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
 		{
 			var jObj = JObject.Load(reader);
 			var replaceArr = jObj[nameof(Replacement)];
-			IReadOnlyList<Replacement> dict = replaceArr
+			var dict
-				.ToObject<Replacement[]>().ToList();
+				= replaceArr?.ToObject<Replacement[]>()?.ToList()
+				?? ReplacementCharacters.Default.Replacements;
+
 
 			//Ensure that the first 6 replacements are for the expected chars and that all replacement strings are valid.
 			//If not, reset to default.
@@ -325,9 +328,10 @@ namespace FileManager
 			return new ReplacementCharacters { Replacements = dict };
 		}
 
-		public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+		public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
 		{
-			ReplacementCharacters replacements = (ReplacementCharacters)value;
+			if (value is not ReplacementCharacters replacements)
+				return;
 
 			var propertyNames = replacements.Replacements
 				.Select(JObject.FromObject).ToList();

Source/HangoverAvalonia/HangoverAvalonia.csproj

@@ -1,7 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<OutputType>WinExe</OutputType>
-		<TargetFramework>net7.0</TargetFramework>
+		<TargetFramework>net9.0</TargetFramework>
+		<RuntimeIdentifier>win-x64</RuntimeIdentifier>
 		<!--Avalonia doesen't support TrimMode=link currently,but we are working on that https://github.com/AvaloniaUI/Avalonia/issues/6892 -->
 		<TrimMode>copyused</TrimMode>
 		<BuiltInComInteropSupport>true</BuiltInComInteropSupport>
@@ -20,9 +21,13 @@
 		<ApplicationIcon>hangover.ico</ApplicationIcon>
 	</PropertyGroup>
 
-  <PropertyGroup>
+	<ItemGroup>
-    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+		<RuntimeHostConfigurationOption Include="System.Net.DisableIPv6" Value="true" />
-  </PropertyGroup>
+	</ItemGroup>
+
+	<PropertyGroup>
+		<SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+	</PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
 		<OutputPath>..\bin\Avalonia\Debug</OutputPath>
@@ -66,13 +71,13 @@
 	</ItemGroup>
 	<ItemGroup>
 
-		<PackageReference Include="Avalonia" Version="11.0.0-preview8" />
+		<PackageReference Include="Avalonia" Version="11.2.3" />
-		<PackageReference Include="Avalonia.Desktop" Version="11.0.0-preview8" />
+		<PackageReference Include="Avalonia.Desktop" Version="11.2.3" />
 		<!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
-		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.0.0-preview8" />
+		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.2.3" />
-		<PackageReference Include="Avalonia.ReactiveUI" Version="11.0.0-preview8" />
+		<PackageReference Include="Avalonia.ReactiveUI" Version="11.2.3" />
-		<PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.0.0-preview8" />
+		<PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.1.5" />
-		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.0-preview8" />
+		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.3" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\HangoverBase\HangoverBase.csproj" />

Source/HangoverAvalonia/Properties/PublishProfiles/LinuxProfile.pubxml

@@ -8,7 +8,7 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <Platform>Any CPU</Platform>
     <PublishDir>..\bin\Publish\Linux-chardonnay</PublishDir>
     <PublishProtocol>FileSystem</PublishProtocol>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RuntimeIdentifier>linux-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
     <PublishSingleFile>false</PublishSingleFile>

Source/HangoverAvalonia/Properties/PublishProfiles/MacOSProfile.pubxml

@@ -8,7 +8,7 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <Platform>Any CPU</Platform>
     <PublishDir>..\bin\Publish\MacOS-chardonnay</PublishDir>
     <PublishProtocol>FileSystem</PublishProtocol>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RuntimeIdentifier>osx-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
     <PublishSingleFile>false</PublishSingleFile>

Source/HangoverAvalonia/Properties/PublishProfiles/WindowsProfile.pubxml

@@ -8,7 +8,7 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <Platform>Any CPU</Platform>
     <PublishDir>..\bin\Publish\Windows-chardonnay</PublishDir>
     <PublishProtocol>FileSystem</PublishProtocol>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
     <PublishSingleFile>false</PublishSingleFile>

Source/HangoverAvalonia/Views/MainWindow.axaml.cs

@@ -13,7 +13,7 @@ namespace HangoverAvalonia.Views
 
 			var config = LibationScaffolding.RunPreConfigMigrations();
 			LibationScaffolding.RunPostConfigMigrations(config);
-			LibationScaffolding.RunPostMigrationScaffolding(config);
+			LibationScaffolding.RunPostMigrationScaffolding(Variety.Chardonnay, config);
 		}
 
 		public void OnLoad()

Source/HangoverBase/HangoverBase.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 

Source/HangoverWinForms/Form1.Designer.cs

@@ -219,8 +219,8 @@
             // 
             // Form1
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
             this.ClientSize = new System.Drawing.Size(800, 450);
             this.Controls.Add(this.tabControl1);
             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));

Source/HangoverWinForms/Form1.cs

@@ -10,7 +10,7 @@ namespace HangoverWinForms
 
             var config = LibationScaffolding.RunPreConfigMigrations();
             LibationScaffolding.RunPostConfigMigrations(config);
-            LibationScaffolding.RunPostMigrationScaffolding(config);
+            LibationScaffolding.RunPostMigrationScaffolding(Variety.Classic, config);
 
             databaseTab.VisibleChanged += databaseTab_VisibleChanged;
             cliTab.VisibleChanged += cliTab_VisibleChanged;