incr ver

Bug fixes in the downloader

.github/ISSUE_TEMPLATE/bug_report.md

@@ -10,10 +10,10 @@ PLEASE FILL OUT THE FOLLOWING. Bug reports with limited information or lacking a
 
 ___
 
-**Describe the bug**  
+## Describe the bug  
 A clear and concise description of what the bug is.
 
-**To Reproduce**  
+## To Reproduce  
 Steps to reproduce the behavior:
 
 1. Go to '...'
@@ -21,14 +21,23 @@ Steps to reproduce the behavior:
 3. Scroll down to '....'
 4. See error
 
-**Expected behavior**  
+## Expected behavior  
 A clear and concise description of what you expected to happen.
 
-**Screenshots**  
+## Screenshots  
 If applicable, add screenshots to help explain your problem.
 
-**Platform**  
+## Platform  
 [e.g. Windows 10, Windows 11, Mac, Linux (State distribution)]
 
-**Log Files**  
-Attach your Libation log file here. Logs are typically in your `[user]\Libation` folder. (For example, on windows: `C:\my_username\Libation`) Also within Libation, on the first tab in Settings you can click the button 'Open log folder'. If your user folder contains the file "LibationCrash.log", attach that also.
+## Log Files
+Attach your Libation log file here. If your user folder contains the file "LibationCrash.log", attach that also.
+
+**Default Log File Locations**
+|Platform|Folder|
+|-|-|
+|Windows|`%userprofile%\Libation`|
+|macOS|`~/Library/Application Support/Libation`|
+|Linux|`~/.local/share/Libation`|
+
+Alternative, you may open the log file folder from within Libation. Open Libation's settings, and on the first tab in Settings you can click the button 'Open log folder'. 

.github/workflows/build-linux.yml

@@ -6,63 +6,46 @@ name: build
 on:
   workflow_call:
     inputs:
-      version_override:
+      libation-version:
         type: string
-        description: "Version number override"
-        required: false
-      run_unit_tests:
+        required: true
+      dotnet-version:
+        type: string
+        required: true
+      run-unit-tests:
         type: boolean
-        description: "Skip running unit tests"
-        required: false
-        default: true
-      runs_on:
+      publish-r2r:
+        type: boolean
+      retention-days:
+        type: number
+      architecture:
         type: string
-        description: "The GitHub hosted runner to use"
+        description: "CPU architecture targeted by the build."
         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."
-        required: true
-
-env:
-  DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: "9.0.x"
-  RELEASE_NAME: "chardonnay"
 
 jobs:
   build:
     name: "${{ inputs.OS }}-${{ inputs.architecture }}"
-    runs-on: ${{ inputs.runs_on }}
+    runs-on: ubuntu-latest
+    env:
+      RUNTIME_ID: "linux-${{ inputs.architecture }}"
     steps:
-      - uses: actions/checkout@v5
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+      - uses: actions/checkout@v6
+      
+      - uses: actions/setup-dotnet@v5
         with:
-          dotnet-version: ${{ env.DOTNET_VERSION }}
-        env:
-          NUGET_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Get version
-        id: get_version
-        run: |
-          inputVersion="${{ inputs.version_override }}"
-          if [[ "${#inputVersion}" -gt 0 ]]
-          then
-            version="${inputVersion}"
-          else
-            version="$(grep -Eio -m 1 '<Version>.*</Version>' ./Source/AppScaffolding/AppScaffolding.csproj | sed -r 's/<\/?Version>//g')"
-          fi
-          echo "version=${version}" >> "${GITHUB_OUTPUT}"
+          dotnet-version: ${{ inputs.dotnet-version }}
+          dotnet-quality: "ga"
 
       - name: Unit test
-        if: ${{ inputs.run_unit_tests }}
+        if: ${{ inputs.run-unit-tests }}
         working-directory: ./Source
         run: dotnet test
 
@@ -70,63 +53,31 @@ jobs:
         id: publish
         working-directory: ./Source
         run: |
-          if [[ "${{ inputs.OS }}" == "MacOS" ]]
-          then
-            display_os="macOS"
-            RUNTIME_ID="osx-${{ inputs.architecture }}"
-          else
-            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 \
-              --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output $OUTPUT \
-              -p:PublishProfile=LibationAvalonia/Properties/PublishProfiles/${display_os}Profile.pubxml
-          dotnet publish \
-              LoadByOS/${display_os}ConfigApp/${display_os}ConfigApp.csproj \
-              --runtime $RUNTIME_ID \
-              --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output $OUTPUT \
-              -p:PublishProfile=LoadByOS/Properties/${display_os}ConfigApp/PublishProfiles/${display_os}Profile.pubxml
-          dotnet publish \
-              LibationCli/LibationCli.csproj \
-              --runtime $RUNTIME_ID \
-              --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output $OUTPUT \
-              -p:PublishProfile=LibationCli/Properties/PublishProfiles/${display_os}Profile.pubxml
-          dotnet publish \
-              HangoverAvalonia/HangoverAvalonia.csproj \
-              --runtime $RUNTIME_ID \
-              --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output $OUTPUT \
-              -p:PublishProfile=HangoverAvalonia/Properties/PublishProfiles/${display_os}Profile.pubxml
+          PUBLISH_ARGS=(
+            '--runtime' '${{ env.RUNTIME_ID }}'
+            '--configuration' 'Release'
+            '--output' '../bin'
+            '-p:PublishProtocol=FileSystem'
+            "-p:PublishReadyToRun=${{ inputs.publish-r2r }}"
+            '-p:SelfContained=true')
+            
+          dotnet publish LibationAvalonia/LibationAvalonia.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish LoadByOS/LinuxConfigApp/LinuxConfigApp.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish LibationCli/LibationCli.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish HangoverAvalonia/HangoverAvalonia.csproj "${PUBLISH_ARGS[@]}"
 
       - name: Build bundle
         id: bundle
-        working-directory: ./Source/bin/Publish/${{ steps.publish.outputs.display_os }}-${{ inputs.architecture }}-${{ env.RELEASE_NAME }}
         run: |
-          BUNDLE_DIR=$(pwd)
-          echo "Bundle dir: ${BUNDLE_DIR}"
-          cd ..
-          SCRIPT=../../../Scripts/Bundle_${{ inputs.OS }}.sh
+          SCRIPT=./Scripts/Bundle_${{ inputs.OS }}.sh
           chmod +rx ${SCRIPT}
-          ${SCRIPT} "${BUNDLE_DIR}" "${{ steps.get_version.outputs.version }}" "${{ inputs.architecture }}"
+          ${SCRIPT} ./bin "${{ inputs.libation-version }}" "${{ inputs.architecture }}"
           artifact=$(ls ./bundle)
           echo "artifact=${artifact}" >> "${GITHUB_OUTPUT}"
 
-      - name: Publish bundle
-        uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: ${{ steps.bundle.outputs.artifact }}
-          path: ./Source/bin/Publish/bundle/${{ steps.bundle.outputs.artifact }}
+          path: ./bundle/${{ steps.bundle.outputs.artifact }}
           if-no-files-found: error
-          retention-days: 7
+          retention-days: ${{ inputs.retention-days }}

.github/workflows/build-mac.yml

@@ -0,0 +1,104 @@
+# build-mac.yml
+# Reusable workflow that builds the MacOS (x64 and arm64) versions of Libation.
+---
+name: build
+
+on:
+  workflow_call:
+    inputs:
+      libation-version:
+        type: string
+        required: true
+      dotnet-version:
+        type: string
+        required: true
+      run-unit-tests:
+        type: boolean
+      publish-r2r:
+        type: boolean
+      retention-days:
+        type: number
+      sign-app:
+        type: boolean
+        description: "Wheather to sign an notorize the app bundle and dmg."
+      architecture:
+        type: string
+        description: "CPU architecture targeted by the build."
+        required: true
+
+jobs:
+  build:
+    name: "macOS-${{ inputs.architecture }}"
+    runs-on: macos-latest
+    env:
+      RUNTIME_ID: "osx-${{ inputs.architecture }}"
+      WAIT_FOR_NOTARIZE: ${{ vars.WAIT_FOR_NOTARIZE == 'true' }}
+    steps:    
+      - uses: apple-actions/import-codesign-certs@v5
+        if: ${{ inputs.sign-app }}
+        with: 
+          p12-file-base64: ${{ secrets.DISTRIBUTION_SIGNING_CERT }}
+          p12-password: ${{ secrets.DISTRIBUTION_SIGNING_CERT_PW }}       
+          
+      - uses: actions/checkout@v6
+      
+      - uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: ${{ inputs.dotnet-version }}
+          dotnet-quality: "ga"
+
+      - name: Unit test
+        if: ${{ inputs.run-unit-tests }}
+        working-directory: ./Source
+        run: dotnet test
+
+      - name: Publish
+        id: publish
+        working-directory: ./Source
+        run: |
+          PUBLISH_ARGS=(
+            '--runtime' '${{ env.RUNTIME_ID }}'
+            '--configuration' 'Release'
+            '--output' '../bin'
+            '-p:PublishProtocol=FileSystem'
+            "-p:PublishReadyToRun=${{ inputs.publish-r2r }}"
+            '-p:SelfContained=true')
+          
+          dotnet publish LibationAvalonia/LibationAvalonia.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish LoadByOS/MacOSConfigApp/MacOSConfigApp.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish LibationCli/LibationCli.csproj "${PUBLISH_ARGS[@]}"
+          dotnet publish HangoverAvalonia/HangoverAvalonia.csproj "${PUBLISH_ARGS[@]}"
+
+      - name: Build bundle
+        id: bundle
+        run: |
+          SCRIPT=./Scripts/Bundle_MacOS.sh
+          chmod +rx ${SCRIPT}
+          ${SCRIPT} ./bin "${{ inputs.libation-version }}" "${{ inputs.architecture }}" "${{ inputs.sign-app }}"
+          artifact=$(ls ./bundle)
+          echo "artifact=${artifact}" >> "${GITHUB_OUTPUT}"
+
+      - name: Notarize bundle
+        if: ${{ inputs.sign-app }}
+        run: |          
+          if [ ${{ vars.WAIT_FOR_NOTARIZE == 'true' }} ]; then
+            WAIT="--wait"
+          fi
+          echo "::debug::Submitting the disk image for notarization"
+          RESPONSE=$(xcrun notarytool submit ./bundle/${{ steps.bundle.outputs.artifact }} $WAIT --no-progress --apple-id ${{ vars.APPLE_DEV_EMAIL }} --password ${{ secrets.APPLE_DEV_PASSWORD }} --team-id ${{ secrets.APPLE_TEAM_ID }} 2>&1)
+          SUBMISSION_ID=$(echo "$RESPONSE" | awk '/id: / { print $2;exit; }')
+          
+          echo "$RESPONSE"
+          echo "::notice::Noraty Submission Id: $SUBMISSION_ID"
+          
+          if [ ${{ vars.WAIT_FOR_NOTARIZE == 'true' }} ]; then
+            echo "::debug::Stapling the notarization ticket to the disk image"
+            xcrun stapler staple "./bundle/${{ steps.bundle.outputs.artifact }}"
+          fi
+
+      - uses: actions/upload-artifact@v5
+        with:
+          name: ${{ steps.bundle.outputs.artifact }}
+          path: ./bundle/${{ steps.bundle.outputs.artifact }}
+          if-no-files-found: error
+          retention-days: ${{ inputs.retention-days }}

.github/workflows/build-windows.yml

@@ -6,113 +6,77 @@ name: build
 on:
   workflow_call:
     inputs:
-      version_override:
+      libation-version:
         type: string
-        description: "Version number override"
-        required: false
-      run_unit_tests:
-        type: boolean
-        description: "Skip running unit tests"
-        required: false
-        default: true
-      architecture:
-        type: string
-        description: "CPU architecture targeted by the build."
         required: true
-
-env:
-  DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: "9.0.x"
+      dotnet-version:
+        type: string
+        required: true
+      run-unit-tests:
+        type: boolean
+      publish-r2r:
+        type: boolean
+      retention-days:
+        type: number
 
 jobs:
   build:
-    name: "${{ matrix.os }}-${{ matrix.release_name }}-${{ inputs.architecture }}"
+    name: "Windows-${{ matrix.release_name }}-x64"
     runs-on: windows-latest
-    env:
-      OUTPUT_NAME: "${{ matrix.os }}-${{ matrix.release_name }}-${{ inputs.architecture }}"
-      RUNTIME_ID: "win-${{ inputs.architecture }}"
     strategy:
       matrix:
-        os: [Windows]
         ui: [Avalonia]
         release_name: [chardonnay]
         include:
-          - os: Windows
-            ui: WinForms
+          - ui: WinForms
             release_name: classic
             prefix: Classic-
     steps:
-      - uses: actions/checkout@v5
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+      - uses: actions/checkout@v6
+      
+      - uses: actions/setup-dotnet@v5
         with:
-          dotnet-version: ${{ env.DOTNET_VERSION }}
-        env:
-          NUGET_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Get version
-        id: get_version
-        run: |
-          if ("${{ inputs.version_override }}".length -gt 0) {
-            $version = "${{ inputs.version_override }}"
-          } else {
-            $version = (Select-Xml -Path "./Source/AppScaffolding/AppScaffolding.csproj" -XPath "/Project/PropertyGroup/Version").Node.InnerXML.Trim()
-          }
-          "version=$version" >> $env:GITHUB_OUTPUT
+          dotnet-version: ${{ inputs.dotnet-version }}
+          dotnet-quality: "ga"
 
       - name: Unit test
-        if: ${{ inputs.run_unit_tests }}
+        if: ${{ inputs.run-unit-tests }}
         working-directory: ./Source
         run: dotnet test
-
+        
       - name: Publish
         working-directory: ./Source
         run: |
-          dotnet publish `
-              Libation${{ matrix.ui }}/Libation${{ matrix.ui }}.csproj `
-              --runtime ${{ env.RUNTIME_ID }} `
-              --configuration ${{ env.DOTNET_CONFIGURATION }} `
-              --output bin/Publish/${{ env.OUTPUT_NAME }} `
-              -p:PublishProfile=Libation${{ matrix.ui }}/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
-          dotnet publish `
-              LoadByOS/${{ matrix.os }}ConfigApp/${{ matrix.os }}ConfigApp.csproj `
-              --runtime ${{ env.RUNTIME_ID }} `
-              --configuration ${{ env.DOTNET_CONFIGURATION }} `
-              --output bin/Publish/${{ env.OUTPUT_NAME }} `
-              -p:PublishProfile=LoadByOS/${{ matrix.os }}ConfigApp/PublishProfiles/${{ matrix.os }}Profile.pubxml
-          dotnet publish `
-              LibationCli/LibationCli.csproj `
-              --runtime ${{ env.RUNTIME_ID }} `
-              --configuration ${{ env.DOTNET_CONFIGURATION }} `
-              --output bin/Publish/${{ env.OUTPUT_NAME }} `
-              -p:DefineConstants="${{ matrix.release_name }}" `
-              -p:PublishProfile=LibationCli/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
-          dotnet publish `
-              Hangover${{ matrix.ui }}/Hangover${{ matrix.ui }}.csproj `
-              --runtime ${{ env.RUNTIME_ID }} `
-              --configuration ${{ env.DOTNET_CONFIGURATION }} `
-              --output bin/Publish/${{ env.OUTPUT_NAME }} `
-              -p:PublishProfile=Hangover${{ matrix.ui }}/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
+          $PUBLISH_ARGS=@(
+            "--runtime", "win-x64",
+            "--configuration", "Release",
+            "--output", "../bin",
+            "-p:PublishProtocol=FileSystem",
+            "-p:PublishReadyToRun=${{ inputs.publish-r2r }}",
+            "-p:SelfContained=true")            
+          
+          dotnet publish "Libation${{ matrix.ui }}/Libation${{ matrix.ui }}.csproj" $PUBLISH_ARGS
+          dotnet publish "LoadByOS/WindowsConfigApp/WindowsConfigApp.csproj" $PUBLISH_ARGS
+          dotnet publish "LibationCli/LibationCli.csproj" $PUBLISH_ARGS
+          dotnet publish "Hangover${{ matrix.ui }}/Hangover${{ matrix.ui }}.csproj" $PUBLISH_ARGS
 
       - name: Zip artifact
         id: zip
-        working-directory: ./Source/bin/Publish
+        working-directory: ./bin
         run: |
-          $bin_dir = "${{ env.OUTPUT_NAME }}\"
           $delfiles = @(
             "WindowsConfigApp.exe",
             "WindowsConfigApp.runtimeconfig.json",
-            "WindowsConfigApp.deps.json"
-            )
-          foreach ($file in $delfiles){ if (test-path $bin_dir$file){ Remove-Item $bin_dir$file } }
-          $artifact="${{ matrix.prefix }}Libation.${{ steps.get_version.outputs.version }}-" + "${{ matrix.os }}".ToLower() + "-${{ matrix.release_name }}-${{ inputs.architecture }}"
+            "WindowsConfigApp.deps.json")
+          
+          foreach ($file in $delfiles){ if (test-path $file){ Remove-Item $file } }
+          $artifact="${{ matrix.prefix }}Libation.${{ inputs.libation-version }}-windows-${{ matrix.release_name }}-x64.zip"
           "artifact=$artifact" >> $env:GITHUB_OUTPUT
-          Compress-Archive -Path "${bin_dir}*" -DestinationPath "$artifact.zip"
+          Compress-Archive -Path * -DestinationPath "$artifact"
 
-      - name: Publish artifact
-        uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
-          name: ${{ steps.zip.outputs.artifact }}.zip
-          path: ./Source/bin/Publish/${{ steps.zip.outputs.artifact }}.zip
+          name: ${{ steps.zip.outputs.artifact }}
+          path: ./bin/${{ steps.zip.outputs.artifact }}
           if-no-files-found: error
-          retention-days: 7
+          retention-days: ${{ inputs.retention-days }}

.github/workflows/build.yml

@@ -6,26 +6,51 @@ name: build
 on:
   workflow_call:
     inputs:
-      version_override:
+      libation-version:
         type: string
-        description: "Version number override"
-        required: false
-      run_unit_tests:
+        description: "Libation version number"
+        required: true
+      dotnet-version:
+        type: string
+        default: "10.x"
+        description: ".NET version to target"
+      run-unit-tests:
         type: boolean
-        description: "Skip running unit tests"
-        required: false
-        default: true
+        description: "Whether to run unit tests prior to publishing."
+      publish-r2r:
+        type: boolean
+        description: "Whether to publish assemblies as ReadyToRun."
+      release:
+        type: boolean
+        description: "Whether this workflow is being called as a release"
+      retention-days:
+        type: number
+        description: "Number of days the artifacts are to be retained."
 
-jobs:
+jobs:    
   windows:
-    strategy:
-      matrix:
-        architecture: [x64]
     uses: ./.github/workflows/build-windows.yml
     with:
-      version_override: ${{ inputs.version_override }}
-      run_unit_tests: ${{ inputs.run_unit_tests }}
+      libation-version: ${{ inputs.libation-version }}
+      dotnet-version: ${{ inputs.dotnet-version }}
+      run-unit-tests: ${{ inputs.run-unit-tests }}
+      publish-r2r: ${{ inputs.publish-r2r }}
+      retention-days: ${{ inputs.retention-days }}
+      
+  macOS:
+    strategy:
+      matrix:
+        architecture: [x64, arm64]
+    uses: ./.github/workflows/build-mac.yml
+    with:
+      libation-version: ${{ inputs.libation-version }}
+      dotnet-version: ${{ inputs.dotnet-version }}
+      run-unit-tests: ${{ inputs.run-unit-tests }}
+      publish-r2r: ${{ inputs.publish-r2r }}
+      retention-days: ${{ inputs.retention-days }}
       architecture: ${{ matrix.architecture }}
+      sign-app: ${{ inputs.release || vars.SIGN_MAC_APP_ON_VALIDATE == 'true' }}
+    secrets: inherit
 
   linux:
     strategy:
@@ -34,20 +59,11 @@ jobs:
         architecture: [x64, arm64]
     uses: ./.github/workflows/build-linux.yml
     with:
-      version_override: ${{ inputs.version_override }}
-      runs_on: ubuntu-latest
+      libation-version: ${{ inputs.libation-version }}
+      dotnet-version: ${{ inputs.dotnet-version }}
+      run-unit-tests: ${{ inputs.run-unit-tests }}
+      publish-r2r: ${{ inputs.publish-r2r }}
+      retention-days: ${{ inputs.retention-days }}
+      architecture: ${{ matrix.architecture }}
       OS: ${{ matrix.OS }}
-      architecture: ${{ matrix.architecture }}
-      run_unit_tests: ${{ inputs.run_unit_tests }}
 
-  macos:
-    strategy:
-      matrix:
-        architecture: [x64, arm64]
-    uses: ./.github/workflows/build-linux.yml
-    with:
-      version_override: ${{ inputs.version_override }}
-      runs_on: macos-latest
-      OS: MacOS
-      architecture: ${{ matrix.architecture }}
-      run_unit_tests: ${{ inputs.run_unit_tests }}

.github/workflows/docker.yml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

.github/workflows/release.yml

@@ -8,7 +8,7 @@ on:
       - "v*"
 jobs:
   prerelease:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       version: ${{ steps.get_version.outputs.version }}
     steps:
@@ -31,16 +31,18 @@ jobs:
   build:
     needs: [prerelease]
     uses: ./.github/workflows/build.yml
+    secrets: inherit
     with:
-      version_override: ${{ needs.prerelease.outputs.version }}
-      run_unit_tests: false
+      libation-version: ${{ needs.prerelease.outputs.version }}
+      publish-r2r: true
+      release: true
 
   release:
     needs: [prerelease, build]
     runs-on: ubuntu-latest
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: artifacts
           pattern: "*(Classic-)Libation.*"

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

@@ -17,6 +17,6 @@ jobs:
     container:
       image: ghcr.io/flathub/flatpak-builder-lint:latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Check the MetaInfo file
         run: flatpak-builder-lint appstream Source/LoadByOS/LinuxConfigApp/com.getlibation.Libation.metainfo.xml

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

@@ -15,7 +15,7 @@ jobs:
   validate-desktop-file:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - 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

@@ -10,12 +10,31 @@ on:
     branches: [master]
 
 jobs:
+  get_version:
+    runs-on: ubuntu-slim
+    outputs:
+      version: ${{ steps.get_version.outputs.version }}
+    steps:
+      - name: Get version
+        id: get_version
+        run: |
+          wget "https://raw.githubusercontent.com/${{ github.repository }}/${{ github.sha }}/Source/AppScaffolding/AppScaffolding.csproj"
+          version="$(grep -Eio -m 1 '<Version>.*</Version>' ./AppScaffolding.csproj | sed -r 's/<\/?Version>//g')"
+          echo "version=${version}" >> "${GITHUB_OUTPUT}"
   build:
+    needs: [get_version]
     uses: ./.github/workflows/build.yml
+    secrets: inherit
+    with:
+      libation-version: ${{ needs.get_version.outputs.version }}
+      retention-days: 14
+      run-unit-tests: true
+      
   docker:
+    needs: [get_version]
     uses: ./.github/workflows/docker.yml
     with:
-      version: ${GITHUB_SHA}
+      version: ${{ needs.get_version.outputs.version }}
       release: false
     secrets:
       docker_username: ${{ secrets.DOCKERHUB_USERNAME }}

.gitignore

@@ -370,4 +370,10 @@ FodyWeavers.xsd
 
 /__TODO.txt
 /DataLayer/LibationContext.db
-*/bin-Avalonia
+*/bin-Avalonia
+
+# macOS Directory Info
+.DS_Store
+
+# JetBrains Rider Settings
+**/.idea/

.releaseindex.json

@@ -3,8 +3,8 @@
   "WindowsAvalonia":         "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-win(?:dows)?-chardonnay-x64\\.zip",
   "LinuxAvalonia":           "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-linux-chardonnay-amd64\\.deb",
   "LinuxAvalonia_RPM":       "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-linux-chardonnay-amd64\\.rpm",
-  "MacOSAvalonia":           "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-macOS-chardonnay-x64\\.tgz",
+  "MacOSAvalonia":           "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-macOS-chardonnay-x64\\.dmg",
   "LinuxAvalonia_Arm64":     "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-linux-chardonnay-arm64\\.deb",
   "LinuxAvalonia_Arm64_RPM": "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-linux-chardonnay-arm64\\.rpm",
-  "MacOSAvalonia_Arm64":     "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-macOS-chardonnay-arm64\\.tgz"
+  "MacOSAvalonia_Arm64":     "Libation\\.\\d+\\.\\d+\\.\\d+(?:\\.\\d+)?-macOS-chardonnay-arm64\\.dmg"
 }

Dockerfile

@@ -1,16 +1,19 @@
 # Dockerfile
-FROM --platform=${BUILDPLATFORM} mcr.microsoft.com/dotnet/sdk:9.0 AS build
+FROM --platform=${BUILDPLATFORM} mcr.microsoft.com/dotnet/sdk:10.0 AS build
 ARG TARGETARCH
 
 COPY Source /Source
 RUN dotnet publish \
     /Source/LibationCli/LibationCli.csproj \
+    --os linux \
     --arch ${TARGETARCH} \
     --configuration Release \
     --output /Source/bin/Publish/Linux-chardonnay \
-    -p:PublishProfile=/Source/LibationCli/Properties/PublishProfiles/LinuxProfile.pubxml
+    -p:PublishProtocol=FileSystem \
+    -p:PublishReadyToRun=true \
+    -p:SelfContained=true
 
-FROM mcr.microsoft.com/dotnet/runtime:9.0
+FROM mcr.microsoft.com/dotnet/runtime:10.0
 ARG USER_UID=1001
 ARG USER_GID=1001
 

Documentation/Advanced.md

@@ -10,12 +10,10 @@
 - [Files and folders](#files-and-folders)
 - [Settings](#settings)
 - [Custom File Naming](NamingTemplates.md)
-- [Command Line Interface](#command-line-interface)
 - [Custom Theme Colors](#custom-theme-colors) (Chardonnay Only)
+- [Command Line Interface](#command-line-interface)
 - [Audio Formats (Dolby Atmos, Widevine, Spacial Audio)](AudioFileFormats.md)
 
-
-
 ### Files and folders
 
 To make upgrades and reinstalls easier, Libation separates all of its responsibilities to a few different folders. If you don't want to mess with this stuff: ignore it. Read on if you like a little more control over your files.
@@ -39,55 +37,6 @@ In addition to the options that are enabled if you allow Libation to "fix up" th
 * 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.
-
-Warnings about relying solely on on the CLI:
-* CLI will not perform any upgrades.
-* It will show that there is an upgrade, but that will likely scroll by too fast to notice.
-* It will not perform all post-upgrade migrations. Some migrations are only be possible by launching GUI.
-
-```
-help
-  libationcli --help
-  
-verb-specific help
-  libationcli scan --help
-  
-scan all libraries
-  libationcli scan
-scan only libraries for specific accounts
-  libationcli scan nickname1 nickname2
-  
-convert all m4b files to mp3
-  libationcli convert
-  
-liberate all books and pdfs
-  libationcli liberate
-liberate pdfs only
-  libationcli liberate --pdf
-  libationcli liberate -p
-  
-export library to file
-  libationcli export --path "C:\foo\bar\my.json" --json
-  libationcli export -p "C:\foo\bar\my.json" -j
-  libationcli export -p "C:\foo\bar\my.csv" --csv
-  libationcli export -p "C:\foo\bar\my.csv" -c
-  libationcli export -p "C:\foo\bar\my.xlsx" --xlsx
-  libationcli export -p "C:\foo\bar\my.xlsx" -x
-
-Set download statuses throughout library based on whether each book's audio file can be found.   
-Must include at least one flag: --downloaded , --not-downloaded.  
-Downloaded: If the audio file can be found, set download status to 'Downloaded'.  
-Not Downloaded: If the audio file cannot be found, set download status to 'Not Downloaded'  
-UI: Visible Books \> Set 'Downloaded' status automatically. Visible books. Prompts before saving changes  
-CLI: Full library. No prompt
-
-  libationcli set-status -d
-  libationcli set-status -n
-  libationcli set-status -d -n
-```
 ### Custom Theme Colors
 
 In Libation Chardonnay (not Classic), you may adjust the app colors using the built-in theme editor. Open the Settings window (from the menu bar: Settings > Settings). On the "Important" settings tab, click "Edit Theme Colors".
@@ -109,4 +58,107 @@ The below video demonstrates using the theme editor to make changes to the Dark
 
 [](https://github.com/user-attachments/assets/05c0cb7f-578f-4465-9691-77d694111349)
 
+### Command Line Interface
 
+Libationcli.exe allows limited access to Libation's functionalities as a CLI.
+
+Warnings about relying solely on on the CLI:
+* CLI will not perform any upgrades.
+* It will show that there is an upgrade, but that will likely scroll by too fast to notice.
+* It will not perform all post-upgrade migrations. Some migrations are only be possible by launching GUI.
+
+#### Help
+```console
+libationcli --help
+```
+#### Verb-Specific Help
+```console
+libationcli scan --help
+```
+#### Scan All Libraries
+```console
+libationcli scan
+```
+#### Scan Only Libraries for Specific Accounts
+```console
+libationcli scan nickname1 nickname2
+```
+#### Convert All m4b Files to mp3
+```console
+libationcli convert
+```
+#### Liberate All Books and Pdfs
+```console
+libationcli liberate
+```
+#### Liberate Pdfs Only
+```console
+libationcli liberate --pdf
+libationcli liberate -p
+```
+#### Force Book(s) to Re-Liberate
+```console
+libationcli liberate --force
+libationcli liberate -f
+```
+#### Liberate using a license file from the `get-license` command
+```console
+libationcli liberate --license /path/to/license.lic
+libationcli liberate --license - < /path/to/license.lic
+```
+#### List Libation Settings
+```console
+libationcli get-setting
+libationcli get-setting -b
+libationcli get-setting FileDownloadQuality
+```
+#### Override Libation Settings for the Command
+```console
+libationcli liberate B017V4IM1G -override FileDownloadQuality=Normal
+libationcli liberate B017V4IM1G -o FileDownloadQuality=normal -o UseWidevine=true Request_xHE_AAC=true -f
+```
+#### Copy the Local SQLite Database to Postgres
+```console
+libationcli copydb --connectionString "my postgres connection string"
+libationcli copydb -c "my postgres connection string"
+```
+#### Export Library to File
+```console
+libationcli export --path "C:\foo\bar\my.json" --json
+libationcli export -p "C:\foo\bar\my.json" -j
+libationcli export -p "C:\foo\bar\my.csv" --csv
+libationcli export -p "C:\foo\bar\my.csv" -c
+libationcli export -p "C:\foo\bar\my.xlsx" --xlsx
+libationcli export -p "C:\foo\bar\my.xlsx" -x
+```
+#### Set Download Status
+Set download statuses throughout library based on whether each book's audio file can be found.   
+Must include at least one flag: --downloaded , --not-downloaded.  
+Downloaded: If the audio file can be found, set download status to 'Downloaded'.  
+Not Downloaded: If the audio file cannot be found, set download status to 'Not Downloaded'  
+UI: Visible Books \> Set 'Downloaded' status automatically. Visible books. Prompts before saving changes  
+CLI: Full library. No prompt
+
+```console
+libationcli set-status -d
+libationcli set-status -n
+libationcli set-status -d -n
+```
+#### Get a Content License Without Downloading
+```console
+libationcli get-license B017V4IM1G
+```
+#### Example Powershell Script to Download Four Differenf Versions f the Same Book
+```powershell
+$asin="B017V4IM1G"
+
+$xHE_AAC=@('true', 'false')
+$Qualities=@('Normal', 'High')
+foreach($q in $Qualities){
+  foreach($x in $xHE_AAC){
+	$license = ./libationcli get-license $asin --override FileDownloadQuality=$q --override Request_xHE_AAC=$x
+	echo $($license | ConvertFrom-Json).ContentMetadata.content_reference
+	echo $license | ./libationcli liberate --force --license -
+  }
+}
+```

Documentation/AudioFileFormats.md

@@ -58,6 +58,11 @@ This is a proprietary codec created by the [Fraunhofer Institute for Integrated
 
 xHE-AAC boasts significantly higher quality audio at low bitrates. Though it has existed since at least 2016, playback support is still quite limited. FFmpeg has recently added partial decoder support for the USAC profiles, but it is insufficient to decode the xHE-AAC audio files acquired from Audible (due to FFmpeg's lack of support for MPEG Surround for Mono to Stereo Upmixing; ISO 23003-3:2012 §7.11)
 
+Note that the xHE-AAC files authored by Audible have some USAC conformance errors including:
+- Number of samples per frame not matching the UsacConfig coreCoderFrameLength value.
+- Disagreement between stts and UsacFrame usacIndependencyFlag value.
+- Stts indicating a frame is an immediate play-out frame, but USAC AudioPreRoll is absent.
+
 ## Dolby Atmos
 Atmos is a surround sound technology that expands on existing surround sound systems by adding height channels as well as free-moving sound objects. Audible delivers Dolby Atmos in two formats: E-AC-3 and AC-4.
 

Documentation/NamingTemplates.md

@@ -81,17 +81,39 @@ Anything between the opening tag (`<tagname->`) and closing tag (`<-tagname>`) w
 |\<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|
+|\<has PROPERTY-\>...\<-has\>|Only include if the PROPERTY has a value (i.e. not null or empty)|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.
+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.
 
-You can invert the condition (instead of displaying the text when the condition is true, display the text when it is false) by playing a '!' symbol before the opening tag name.
+You can invert the condition (instead of displaying the text when the condition is true, display the text when it is false) by playing a `!` symbol before the opening tag name. 
+
+|Inverted Tag|Description|Type|
+|-|-|-|
+|\<!if series-\>...\<-if series\>|Only include if *not* part of a book series or podcast|Conditional|
+|\<!if podcast-\>...\<-if podcast\>|Only include if *not* part of a podcast|Conditional|
+|\<!if bookseries-\>...\<-if bookseries\>|Only include if *not* part of a book series|Conditional|
+|\<!if podcastparent-\>...\<-if podcastparent\>**†**|Only include if item is *not* a podcast series parent|Conditional|
+|\<!has PROPERTY-\>...\<-has\>|Only include if the PROPERTY *does not* have a value (i.e. is null or empty)|Conditional|
+
+**†** Only affects the podcast series folder naming if "Save all podcast episodes to the series parent folder" option is checked.
 
 As an example, this folder template will place all Liberated podcasts into a "Podcasts" folder and all liberated books (not podcasts) into a "Books" folder.
 
-\<if podcast-\>Podcasts<-if podcast\>\<!if podcast-\>Books\<-if podcast\>\\\<title\>
+`<if podcast->Podcasts<-if podcast><!if podcast->Books<-if podcast>\<title>`
 
+This example will add a number if the `<series#\>` tag has a value:
+
+`<has series#><series#><-has>`
+
+This example will put non-series books in a "Standalones" folder:
+
+`<!if series->Standalones/<-if series>`
+
+And this example will customize the title based on whether the book has a subtitle:
+
+`<audible title><has audible subtitle->-<audible subtitle><-has>`
 
 # Tag Formatters
 **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.

Scripts/Bundle_Debian.sh

@@ -28,14 +28,6 @@ then
   exit
 fi
 
-contains() { case "$1" in *"$2"*) true ;; *) false ;; esac }
-
-if ! contains "$BIN_DIR" "$ARCH"
-then
-  echo "This script must be called with a Libation binaries for ${ARCH}."
-  exit
-fi
-
 ARCH=$(echo $ARCH | sed 's/x64/amd64/')
 
 DEB_DIR=./deb
@@ -113,6 +105,7 @@ Essential: no
 Priority: optional
 Maintainer: github.com/rmcrackan
 Description: liberate your audiobooks
+Recommends: libgtk-3-0, libwebkit2gtk-4.1-0
 " >> $FOLDER_DEBIAN/control
 
 echo "Changing permissions for pre- and post-install files..."

Scripts/Bundle_MacOS.sh

@@ -3,6 +3,7 @@
 BIN_DIR=$1; shift
 VERSION=$1; shift
 ARCH=$1; shift
+SIGN_WITH_KEY=$1; shift
 
 if [ -z "$BIN_DIR" ]
 then
@@ -28,12 +29,9 @@ then
   exit
 fi
 
-contains() { case "$1" in *"$2"*) true ;; *) false ;; esac }
-
-if ! contains "$BIN_DIR" $ARCH
+if [ "$SIGN_WITH_KEY" != "true" ]
 then
-  echo "This script must be called with a Libation binaries for ${ARCH}."
-  exit
+  echo "::warning:: App will fail Gatekeeper verification without valid Apple Team information."
 fi
 
 BUNDLE=./Libation.app
@@ -74,6 +72,15 @@ mv $BUNDLE_MACOS/libation.icns $BUNDLE_RESOURCES/libation.icns
 echo "Moving Info.plist file..."
 mv $BUNDLE_MACOS/Info.plist $BUNDLE_CONTENTS/Info.plist
 
+echo "Moving Libation_DS_Store file..."
+mv $BUNDLE_MACOS/Libation_DS_Store ./Libation_DS_Store
+
+echo "Moving background.png file..."
+mv $BUNDLE_MACOS/background.png ./background.png
+
+echo "Moving background.png file..."
+mv $BUNDLE_MACOS/Libation.entitlements ./Libation.entitlements
+
 PLIST_ARCH=$(echo $ARCH | sed 's/x64/x86_64/')
 echo "Set LSArchitecturePriority to $PLIST_ARCH"
 sed -i -e "s/ARCHITECTURE_STRING/$PLIST_ARCH/" $BUNDLE_CONTENTS/Info.plist
@@ -81,27 +88,45 @@ sed -i -e "s/ARCHITECTURE_STRING/$PLIST_ARCH/" $BUNDLE_CONTENTS/Info.plist
 echo "Set CFBundleVersion to $VERSION"
 sed -i -e "s/VERSION_STRING/$VERSION/" $BUNDLE_CONTENTS/Info.plist
 
-
 delfiles=('MacOSConfigApp' 'MacOSConfigApp.deps.json' 'MacOSConfigApp.runtimeconfig.json')
-
 for n in "${delfiles[@]}"
 do
   echo "Deleting $n"
   rm $BUNDLE_MACOS/$n
 done
 
-APP_FILE=Libation.${VERSION}-macOS-chardonnay-${ARCH}.tgz
+DMG_FILE="Libation.${VERSION}-macOS-chardonnay-${ARCH}.dmg"
 
-echo "Signing executables in: $BUNDLE"
-codesign --force --deep -s - $BUNDLE
+all_identities=$(security find-identity -v -p codesigning)
+identity=$(echo ${all_identities} | sed -n 's/.*"\(.*\)".*/\1/p')
 
-echo "Creating app bundle: $APP_FILE"
-tar -czvf $APP_FILE $BUNDLE
+if [ "$SIGN_WITH_KEY" == "true" ]; then
+  echo "Signing executables in: $BUNDLE"
+  codesign --force --deep --timestamp --options=runtime --entitlements "./Libation.entitlements" --sign "${identity}" "$BUNDLE"
+  codesign --verify --verbose "$BUNDLE"
+else
+  echo "Signing with empty key: $BUNDLE"
+  codesign --force --deep -s - $BUNDLE
+fi
 
-mkdir bundle
-echo "moving to ./bundle/$APP_FILE"
-mv $APP_FILE ./bundle/$APP_FILE
+echo "Creating app disk image: $DMG_FILE"
+mkdir Libation
+mv $BUNDLE ./Libation/$BUNDLE
+mv Libation_DS_Store Libation/.DS_Store
+mkdir Libation/.background
+mv background.png Libation/.background/
+ln -s /Applications "./Libation/ "
+mkdir ./bundle
+hdiutil create -srcFolder ./Libation -o "./bundle/$DMG_FILE"
+# Create a .DS_Store by:
+#  - mounting an existing image in shadow mode (hdiutil attach Libation.dmg -shadow junk.dmg)
+#  - Open the folder and edit it to your liking.
+#  - Copy the .DS_Store from the directory and save it to Libation_DS_Store
 
-rm -r $BUNDLE
+
+if [ "$SIGN_WITH_KEY" == "true" ]; then
+  echo "Signing $DMG_FILE"
+  codesign --deep --sign "${identity}" "./bundle/$DMG_FILE"
+fi
 
 echo "Done!"

Scripts/Bundle_Redhat.sh

@@ -28,14 +28,6 @@ then
   exit
 fi
 
-contains() { case "$1" in *"$2"*) true ;; *) false ;; esac }
-
-if ! contains "$BIN_DIR" "$ARCH"
-then
-  echo "This script must be called with a Libation binaries for ${ARCH}."
-  exit
-fi
-
 BASEDIR=$(pwd)
 
 delfiles=('LinuxConfigApp' 'LinuxConfigApp.deps.json' 'LinuxConfigApp.runtimeconfig.json')
@@ -62,7 +54,7 @@ License:        GPLv3+
 URL:            https://github.com/rmcrackan/Libation
 Source0:        https://github.com/rmcrackan/Libation   
 
-Requires:       bash
+Requires:       bash gtk3 webkit2gtk4.1
 
 
 %define __os_install_post %{nil}

Source/AaxDecrypter/AaxDecrypter.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -13,7 +13,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="AAXClean.Codecs" Version="2.0.2.2" />
+	  <PackageReference Include="AAXClean.Codecs" Version="2.1.0.1" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/AaxDecrypter/AudiobookDownloadBase.cs

@@ -26,7 +26,17 @@ namespace AaxDecrypter
 		protected string OutputDirectory { get; }
 		public IDownloadOptions DownloadOptions { get; }
 		protected NetworkFileStream InputFileStream => NfsPersister.NetworkFileStream;
-		protected virtual long InputFilePosition => InputFileStream.Position;
+		protected virtual long InputFilePosition
+		{
+			get
+			{
+				//Use try/catch instread of checking CanRead to avoid
+				//a race with the background download completing
+				//between the check and the Position call.
+				try { return InputFileStream.Position; }
+				catch { return InputFileStream.Length; }
+			}
+		}
 		private bool downloadFinished;
 
 		private NetworkFileStreamPersister? m_nfsPersister;

Source/AaxDecrypter/IDownloadOptions.cs

@@ -15,6 +15,7 @@ namespace AaxDecrypter
             KeyPart2 = keyPart2;
         }
 
+        [Newtonsoft.Json.JsonConstructor]
         public KeyData(string keyPart1, string? keyPart2 = null)
         {
             ArgumentNullException.ThrowIfNull(keyPart1, nameof(keyPart1));

Source/AaxDecrypter/NetworkFileStream.cs

@@ -209,6 +209,12 @@ namespace AaxDecrypter
 					}
 				}
 			}
+			catch (Exception ex)
+			{
+				//Don't throw from DownloadTask.
+				//This task gets awaited in Dispose() and we don't want to have an unhandled exception there.
+				Serilog.Log.Error(ex, "An error was encountered during the download process.");
+			}
 			finally
 			{
 				_writeFile.Dispose();
@@ -306,7 +312,7 @@ namespace AaxDecrypter
 				if (WritePosition > endPosition)
 					throw new WebException($"Downloaded size (0x{WritePosition:X10}) is greater than {nameof(ContentLength)} (0x{ContentLength:X10}).");
 			}
-			catch (TaskCanceledException)
+			catch (OperationCanceledException)
 			{
 				Serilog.Log.Information("Download was cancelled");
 			}
@@ -402,7 +408,7 @@ namespace AaxDecrypter
 		 */
 		protected override void Dispose(bool disposing)
 		{
-			if (disposing && !disposed)
+			if (disposing && !Interlocked.CompareExchange(ref disposed, true, false))
 			{
 				_cancellationSource.Cancel();
 				DownloadTask?.GetAwaiter().GetResult();
@@ -413,7 +419,6 @@ namespace AaxDecrypter
 				OnUpdate(waitForWrite: true);
 			}
 
-			disposed = true;
 			base.Dispose(disposing);
 		}
 

Source/AaxDecrypter/UnencryptedAudiobookDownloader.cs

@@ -1,6 +1,6 @@
 using FileManager;
 using System.Threading.Tasks;
-
+#nullable enable
 namespace AaxDecrypter
 {
 	public class UnencryptedAudiobookDownloader : AudiobookDownloadBase

Source/AppScaffolding/AppScaffolding.csproj

@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
-    <Version>12.5.2.1</Version>
+    <TargetFramework>net10.0</TargetFramework>
+    <Version>12.7.4.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Octokit" Version="14.0.0" />
     <!-- Do not remove unused Serilog.Sinks -->
     <!-- Only File 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.Console" Version="6.1.1" />
     <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
   </ItemGroup>
   <ItemGroup>

Source/AppScaffolding/LibationScaffolding.cs

@@ -79,8 +79,18 @@ namespace AppScaffolding
 		}
 
 		/// <summary>most migrations go in here</summary>
-		public static void RunPostConfigMigrations(Configuration config)
+		public static void RunPostConfigMigrations(Configuration config, bool ephemeralSettings = false)
 		{
+			if (ephemeralSettings)
+			{
+				var settings = JObject.Parse(File.ReadAllText(config.LibationFiles.SettingsFilePath));
+				config.LoadEphemeralSettings(settings);
+			}
+			else
+			{
+				config.LoadPersistentSettings(config.LibationFiles.SettingsFilePath);
+			}
+			DeleteOpenSqliteFiles(config);
 			AudibleApiStorage.EnsureAccountsSettingsFileExists();
 
 			//
@@ -93,6 +103,19 @@ namespace AppScaffolding
 			Migrations.migrate_to_v12_0_1(config);
 		}
 
+		/// <summary>
+		/// Delete shared memory and write-ahead log SQLite database files which may prevent access to the database.
+		/// </summary>
+		private static void DeleteOpenSqliteFiles(Configuration config)
+		{
+			var walFile = SqliteStorage.DatabasePath + "-wal";
+			var shmFile = SqliteStorage.DatabasePath + "-shm";
+			if (File.Exists(walFile))
+				FileManager.FileUtility.SaferDelete(walFile);
+			if (File.Exists(shmFile))
+				FileManager.FileUtility.SaferDelete(shmFile);
+		}
+
 		/// <summary>Initialize logging. Wire-up events. Run after migration</summary>
 		public static void RunPostMigrationScaffolding(Variety variety, Configuration config)
 		{
@@ -150,7 +173,7 @@ namespace AppScaffolding
 								new JObject
 								{
 									// for this sink to work, a path must be provided. we override this below
-									{ "path", Path.Combine(config.LibationFiles, "Log.log") },
+									{ "path", Path.Combine(config.LibationFiles.Location, "Log.log") },
 									{ "rollingInterval", "Month" },
 									// Serilog template formatting examples
 									// - default:                    "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}{Exception}"
@@ -234,6 +257,7 @@ namespace AppScaffolding
             //Log.Logger.Here().Debug("Begin Libation. Debug with line numbers");
         }
 
+#nullable enable
 		private static void logStartupState(Configuration config)
 		{
 #if DEBUG
@@ -247,9 +271,11 @@ namespace AppScaffolding
 			// begin logging session with a form feed
 			Log.Logger.Information("\r\n\f");
 
-			static int fileCount(FileManager.LongPath longPath)
+			static int fileCount(FileManager.LongPath? longPath)
             {
-                try { return FileManager.FileUtility.SaferEnumerateFiles(longPath).Count(); }
+				if (longPath is null)
+					return -1;
+				try { return FileManager.FileUtility.SaferEnumerateFiles(longPath).Count(); }
                 catch { return -1; }
             }
 
@@ -289,8 +315,8 @@ namespace AppScaffolding
 			if (InteropFactory.InteropFunctionsType is null)
                 Serilog.Log.Logger.Warning("WARNING: OSInteropProxy.InteropFunctionsType is null");
         }
-
-        private static void wireUpSystemEvents(Configuration configuration)
+#nullable restore
+		private static void wireUpSystemEvents(Configuration configuration)
 		{
 			LibraryCommands.LibrarySizeChanged += (object _, List<DataLayer.LibraryBook> libraryBooks)
 				=> SearchEngineCommands.FullReIndex(libraryBooks);
@@ -433,8 +459,8 @@ namespace AppScaffolding
 			const string FILENAME_V1 = "FileLocations.json";
 			const string FILENAME_V2 = "FileLocationsV2.json";
 
-			var jsonFileV1 = Path.Combine(Configuration.Instance.LibationFiles, FILENAME_V1);
-			var jsonFileV2 = Path.Combine(Configuration.Instance.LibationFiles, FILENAME_V2);
+			var jsonFileV1 = Path.Combine(Configuration.Instance.LibationFiles.Location, FILENAME_V1);
+			var jsonFileV2 = Path.Combine(Configuration.Instance.LibationFiles.Location, FILENAME_V2);
 
 			if (!File.Exists(jsonFileV2) && File.Exists(jsonFileV1))
 			{

Source/AppScaffolding/UNSAFE_MigrationHelper.cs

@@ -7,6 +7,7 @@ using LibationFileManager;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
+#nullable enable
 namespace AppScaffolding
 {
 	/// <summary>
@@ -20,21 +21,21 @@ namespace AppScaffolding
 	/// </summary>
 	public static class UNSAFE_MigrationHelper
 	{
-		public static string SettingsDirectory
-			=> !APPSETTINGS_TryGet(LIBATION_FILES_KEY, out var value) || value is null
+		public static string? SettingsDirectory
+			=> !APPSETTINGS_TryGet(LibationFiles.LIBATION_FILES_KEY, out var value) || value is null
 			? null
 			: value;
 
 		#region appsettings.json
 
-		public static bool APPSETTINGS_TryGet(string key, out string value)
+		public static bool APPSETTINGS_TryGet(string key, out string? value)
 		{
 			bool success = false;
-			JToken val = null;
+			JToken? val = null;
 
 			process_APPSETTINGS_Json(jObj => success = jObj.TryGetValue(key, out val), false);
 
-			value = success ? val.Value<string>() : null;
+			value = success ? val?.Value<string>() : null;
 			return success;
 		}
 
@@ -59,7 +60,10 @@ namespace AppScaffolding
 		/// <param name="save">True: save if contents changed. False: no not attempt save</param>
 		private static void process_APPSETTINGS_Json(Action<JObject> action, bool save = true)
 		{
-			var startingContents = File.ReadAllText(Configuration.AppsettingsJsonFile);
+			if (Configuration.Instance.LibationFiles.AppsettingsJsonFile is not string appSettingsFile)
+				return;
+
+			var startingContents = File.ReadAllText(appSettingsFile);
 
 			JObject jObj;
 			try
@@ -82,40 +86,37 @@ namespace AppScaffolding
 			if (startingContents.EqualsInsensitive(endingContents_indented) || startingContents.EqualsInsensitive(endingContents_compact))
 				return;
 
-			File.WriteAllText(Configuration.AppsettingsJsonFile, endingContents_indented);
+			File.WriteAllText(Configuration.Instance.LibationFiles.AppsettingsJsonFile, endingContents_indented);
 			System.Threading.Thread.Sleep(100);
 		}
 		#endregion
 		#region Settings.json
-		public const string LIBATION_FILES_KEY = "LibationFiles";
-		private const string SETTINGS_JSON = "Settings.json";
 
-		public static string SettingsJsonPath => SettingsDirectory is null ? null : Path.Combine(SettingsDirectory, SETTINGS_JSON);
-		public static bool SettingsJson_Exists => SettingsJsonPath is not null && File.Exists(SettingsJsonPath);
+		public static string? SettingsJsonPath => SettingsDirectory is null ? null : Path.Combine(SettingsDirectory, LibationFiles.SETTINGS_JSON);
 
-		public static bool Settings_TryGet(string key, out string value)
+		public static bool Settings_TryGet(string key, out string? value)
 		{
 			bool success = false;
-			JToken val = null;
+			JToken? val = null;
 
 			process_SettingsJson(jObj => success = jObj.TryGetValue(key, out val), false);
 
-			value = success ? val.Value<string>() : null;
+			value = success ? val?.Value<string>() : null;
 			return success;
 		}
 
 		public static bool Settings_JsonPathIsType(string jsonPath, JTokenType jTokenType)
 		{
-			JToken val = null;
+			JToken? val = null;
 
 			process_SettingsJson(jObj => val = jObj.SelectToken(jsonPath), false);
 
 			return val?.Type == jTokenType;
 		}
 
-		public static bool Settings_TryGetFromJsonPath(string jsonPath, out string value)
+		public static bool Settings_TryGetFromJsonPath(string jsonPath, out string? value)
 		{
-			JToken val = null;
+			JToken? val = null;
 
 			process_SettingsJson(jObj => val = jObj.SelectToken(jsonPath), false);
 
@@ -157,10 +158,10 @@ namespace AppScaffolding
 			if (!Settings_JsonPathIsType(jsonPath, JTokenType.Array))
 				return false;
 
-			JArray array = null;
-			process_SettingsJson(jObj => array = (JArray)jObj.SelectToken(jsonPath));
+			JArray? array = null;
+			process_SettingsJson(jObj => array = jObj.SelectToken(jsonPath) as JArray);
 
-			length = array.Count;
+			length = array?.Count ?? 0;
 			return true;
 		}
 
@@ -171,8 +172,7 @@ namespace AppScaffolding
 
 			process_SettingsJson(jObj =>
 			{
-				var array = (JArray)jObj.SelectToken(jsonPath);
-				array.Add(newValue);
+				(jObj.SelectToken(jsonPath) as JArray)?.Add(newValue);
 			});
 		}
 
@@ -200,8 +200,7 @@ namespace AppScaffolding
 
 			process_SettingsJson(jObj =>
 			{
-				var array = (JArray)jObj.SelectToken(jsonPath);
-				if (position < array.Count)
+				if (jObj.SelectToken(jsonPath) is JArray array && position < array.Count)
 					array.RemoveAt(position);
 			});
 		}
@@ -228,7 +227,7 @@ namespace AppScaffolding
 		private static void process_SettingsJson(Action<JObject> action, bool save = true)
 		{
 			// only insert if not exists
-			if (!SettingsJson_Exists)
+			if (!File.Exists(SettingsJsonPath))
 				return;
 
 			var startingContents = File.ReadAllText(SettingsJsonPath);
@@ -260,7 +259,7 @@ namespace AppScaffolding
 		#endregion
 		#region LibationContext.db
 		public const string LIBATION_CONTEXT = "LibationContext.db";
-		public static string DatabaseFile => SettingsDirectory is null ? null : Path.Combine(SettingsDirectory, LIBATION_CONTEXT);
+		public static string? DatabaseFile => SettingsDirectory is null ? null : Path.Combine(SettingsDirectory, LIBATION_CONTEXT);
 		public static bool DatabaseFile_Exists => DatabaseFile is not null && File.Exists(DatabaseFile);
 		#endregion
 	}

Source/ApplicationServices/ApplicationServices.csproj

@@ -1,17 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="CsvHelper" Version="33.1.0" />
-    <PackageReference Include="NPOI" Version="2.7.4" />
+	<PackageReference Include="ClosedXML" Version="0.105.0" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\DtoImporterService\DtoImporterService.csproj" />
     <ProjectReference Include="..\LibationSearchEngine\LibationSearchEngine.csproj" />
+    <ProjectReference Include="..\DataLayer.Postgres\DataLayer.Postgres.csproj" />
+    <ProjectReference Include="..\DataLayer.Sqlite\DataLayer.Sqlite.csproj" />
   </ItemGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">

Source/ApplicationServices/BulkSetDownloadStatus.cs

@@ -69,10 +69,10 @@ namespace ApplicationServices
             return Count;
         }
 
-        public void Execute()
+        public async Task ExecuteAsync()
         {
             foreach (var a in actionSets)
-                a.LibraryBooks.UpdateBookStatus(a.newStatus);
+                await a.LibraryBooks.UpdateBookStatusAsync(a.newStatus);
         }
     }
 }

Source/ApplicationServices/DbContexts.cs

@@ -1,21 +1,40 @@
-using System;
-using System.Collections.Generic;
-using DataLayer;
+using DataLayer;
 using LibationFileManager;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
 
+#nullable enable
 namespace ApplicationServices
 {
-	public static class DbContexts
-	{
-		/// <summary>Use for fully functional context, incl. SaveChanges(). For query-only, use the other method</summary>
-		public static LibationContext GetContext()
-			=> LibationContext.Create(SqliteStorage.ConnectionString);
+    public static class DbContexts
+    {
+        /// <summary>Use for fully functional context, incl. SaveChanges(). For query-only, use the other method</summary>
+        public static LibationContext GetContext()
+        {
+            var context = !string.IsNullOrEmpty(Configuration.Instance.PostgresqlConnectionString)
+                ? LibationContextFactory.CreatePostgres(Configuration.Instance.PostgresqlConnectionString)
+                : LibationContextFactory.CreateSqlite(SqliteStorage.ConnectionString);
+            context.Database.Migrate();
+            return context;
+        }
 
-		/// <summary>Use for full library querying. No lazy loading</summary>
-		public static List<LibraryBook> GetLibrary_Flat_NoTracking(bool includeParents = false)
-		{
+        /// <summary>Use for full library querying. No lazy loading</summary>
+        public static List<LibraryBook> GetLibrary_Flat_NoTracking(bool includeParents = false)
+        {
+            using var context = GetContext();
+            return context.GetLibrary_Flat_NoTracking(includeParents);
+        }
+
+        public static List<LibraryBook> GetDeletedLibraryBooks()
+        {
+            using var context = GetContext();
+            return context.GetDeletedLibraryBooks();
+        }
+
+		public static LibraryBook? GetLibraryBook_Flat_NoTracking(string productId, bool caseSensative = true)
+        {
 			using var context = GetContext();
-			return context.GetLibrary_Flat_NoTracking(includeParents);
+			return context.GetLibraryBook_Flat_NoTracking(productId, caseSensative);
 		}
 	}
 }

Source/ApplicationServices/LibraryCommands.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using AudibleApi;
+using AudibleApi;
 using AudibleUtilities;
 using DataLayer;
 using Dinah.Core;
@@ -11,8 +6,14 @@ using Dinah.Core.Logging;
 using DtoImporterService;
 using FileManager;
 using LibationFileManager;
+using Microsoft.Extensions.DependencyModel;
 using Newtonsoft.Json.Linq;
 using Serilog;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
 using static DtoImporterService.PerfLogger;
 
 #nullable enable
@@ -70,7 +71,7 @@ namespace ApplicationServices
             }
             catch (AudibleApi.Authentication.LoginFailedException lfEx)
             {
-                lfEx.SaveFiles(Configuration.Instance.LibationFiles);
+                lfEx.SaveFiles(Configuration.Instance.LibationFiles.Location);
 
                 // nuget Serilog.Exceptions would automatically log custom properties
                 //   However, it comes with a scary warning when used with EntityFrameworkCore which I'm not yet ready to implement:
@@ -141,16 +142,16 @@ namespace ApplicationServices
                     return default;
 
                 Log.Logger.Information("Begin long-running import");
-                logTime($"pre {nameof(importIntoDbAsync)}");
-                newCount = await importIntoDbAsync(importItems);
-                logTime($"post {nameof(importIntoDbAsync)}");
+                logTime($"pre {nameof(ImportIntoDbAsync)}");
+                newCount = await Task.Run(() => ImportIntoDbAsync(importItems));
+                logTime($"post {nameof(ImportIntoDbAsync)}");
                 Log.Logger.Information($"Import complete. New count {newCount}");
 
                 return (totalCount, newCount);
             }
             catch (AudibleApi.Authentication.LoginFailedException lfEx)
             {
-                lfEx.SaveFiles(Configuration.Instance.LibationFiles);
+                lfEx.SaveFiles(Configuration.Instance.LibationFiles.Location);
 
                 // nuget Serilog.Exceptions would automatically log custom properties
                 //   However, it comes with a scary warning when used with EntityFrameworkCore which I'm not yet ready to implement:
@@ -180,7 +181,8 @@ namespace ApplicationServices
             }
         }
 
-        public static async Task<int> ImportSingleToDbAsync(AudibleApi.Common.Item item, string accountId, string localeName)
+        public static Task<int> ImportSingleToDbAsync(AudibleApi.Common.Item item, string accountId, string localeName) => Task.Run(() => importSingleToDb(item, accountId, localeName));
+		private static int importSingleToDb(AudibleApi.Common.Item item, string accountId, string localeName)
         {
             ArgumentValidator.EnsureNotNull(item, "item");
             ArgumentValidator.EnsureNotNull(accountId, "accountId");
@@ -203,35 +205,23 @@ namespace ApplicationServices
                 return 0;
             }
 
-            using var context = DbContexts.GetContext();
+			return DoDbSizeChangeOperation(ctx =>
+			{
+				var bookImporter = new BookImporter(ctx);
+				bookImporter.Import(importItems);
+				var book = ctx.LibraryBooks.FirstOrDefault(lb => lb.Book.AudibleProductId == importItem.DtoItem.ProductId);
 
-            var bookImporter = new BookImporter(context);
-            await Task.Run(() => bookImporter.Import(importItems));
-            var book = await Task.Run(() => context.LibraryBooks.FirstOrDefault(lb => lb.Book.AudibleProductId == importItem.DtoItem.ProductId));
-            
-            if (book is null)
-            {
-                book = new LibraryBook(bookImporter.Cache[importItem.DtoItem.ProductId], importItem.DtoItem.DateAdded, importItem.AccountId);
-                context.LibraryBooks.Add(book);
-            }
-            else
-            {
-                book.AbsentFromLastScan = false;
-            }
-
-            try
-            {
-                int qtyChanged = await Task.Run(() => SaveContext(context));
-                if (qtyChanged > 0)
-                    await Task.Run(() => finalizeLibrarySizeChange(context));
-                return qtyChanged;
-            }
-            catch (Exception ex)
-            {
-                Log.Logger.Error(ex, "Error adding single library book to DB. {@DebugInfo}", new { item, accountId, localeName });
-                return 0;
-            }
-        }
+				if (book is null)
+				{
+					book = new LibraryBook(bookImporter.Cache[importItem.DtoItem.ProductId], importItem.DtoItem.DateAdded, importItem.AccountId);
+					ctx.LibraryBooks.Add(book);
+				}
+				else
+				{
+					book.AbsentFromLastScan = false;
+				}
+			});
+		}
 
 		private static LogArchiver? openLogArchive(string? archivePath)
         {
@@ -268,7 +258,7 @@ namespace ApplicationServices
 
            await using LogArchiver? archiver
                 = Log.Logger.IsDebugEnabled()
-                ? openLogArchive(System.IO.Path.Combine(Configuration.Instance.LibationFiles, "LibraryScans.zip"))
+                ? openLogArchive(System.IO.Path.Combine(Configuration.Instance.LibationFiles.Location, "LibraryScans.zip"))
                 : default;
 
 			archiver?.DeleteAllButNewestN(20);
@@ -347,23 +337,21 @@ namespace ApplicationServices
 			}
         }
 
-        private static async Task<int> importIntoDbAsync(List<ImportItem> importItems)
+        private static async Task<int> ImportIntoDbAsync(List<ImportItem> importItems) => await Task.Run(() => importIntoDb(importItems));
+		private static int importIntoDb(List<ImportItem> importItems)
         {
-            logTime("importIntoDbAsync -- pre db");
-            using var context = DbContexts.GetContext();
-            var libraryBookImporter = new LibraryBookImporter(context);
-            var newCount = await Task.Run(() => libraryBookImporter.Import(importItems));
-            logTime("importIntoDbAsync -- post Import()");
-            int qtyChanges = SaveContext(context);
-            logTime("importIntoDbAsync -- post SaveChanges");
+			logTime("importIntoDbAsync -- pre db");
 
-            // this is any changes at all to the database, not just new books
-            if (qtyChanges > 0)
-                await Task.Run(() => finalizeLibrarySizeChange(context));
-            logTime("importIntoDbAsync -- post finalizeLibrarySizeChange");
+            int newCount = 0;
 
-            return newCount;
-        }
+            DoDbSizeChangeOperation(ctx =>
+			{
+				var libraryBookImporter = new LibraryBookImporter(ctx);
+				newCount = libraryBookImporter.Import(importItems);
+				logTime("importIntoDbAsync -- post Import()");
+			});
+			return newCount;
+		}
 
         public static int SaveContext(LibationContext context)
         {
@@ -389,57 +377,58 @@ namespace ApplicationServices
 
         #region remove/restore books
         public static Task<int> RemoveBooksAsync(this IEnumerable<LibraryBook> idsToRemove) => Task.Run(() => removeBooks(idsToRemove));
-        public static int RemoveBook(this LibraryBook idToRemove) => removeBooks(new[] { idToRemove });
         private static int removeBooks(IEnumerable<LibraryBook> removeLibraryBooks)
-        {
-            try
-            {
-                if (removeLibraryBooks is null || !removeLibraryBooks.Any())
-                    return 0;
-
-                using var context = DbContexts.GetContext();
+		{
+			if (removeLibraryBooks is null || !removeLibraryBooks.Any())
+				return 0;
 
+			return DoDbSizeChangeOperation(ctx =>
+			{
 				// Entry() NoTracking entities before SaveChanges()
 				foreach (var lb in removeLibraryBooks)
-                {
+				{
 					lb.IsDeleted = true;
-					context.Entry(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+					ctx.Entry(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
 				}
+			});			
+        }
 
-                var qtyChanges = context.SaveChanges();
-                if (qtyChanges > 0)
-                    finalizeLibrarySizeChange(context);
-
-                return qtyChanges;
-            }
+		public static Task<int> RestoreBooksAsync(this IEnumerable<LibraryBook> idsToRemove) => Task.Run(() => restoreBooks(idsToRemove));
+		private static int restoreBooks(this IEnumerable<LibraryBook> libraryBooks)
+		{
+			if (libraryBooks is null || !libraryBooks.Any())
+				return 0;
+			try
+            {
+				return DoDbSizeChangeOperation(ctx =>
+				{
+					// Entry() NoTracking entities before SaveChanges()
+					foreach (var lb in libraryBooks)
+					{
+						lb.IsDeleted = false;
+						ctx.Entry(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+					}
+				});
+			}
             catch (Exception ex)
             {
-                Log.Logger.Error(ex, "Error removing books");
+                Log.Logger.Error(ex, "Error restoring books");
                 throw;
             }
         }
 
-        public static int RestoreBooks(this IEnumerable<LibraryBook> libraryBooks)
-        {
-            try
+		public static Task<int> PermanentlyDeleteBooksAsync(this IEnumerable<LibraryBook> idsToRemove) => Task.Run(() => permanentlyDeleteBooks(idsToRemove));
+		private static int permanentlyDeleteBooks(this IEnumerable<LibraryBook> libraryBooks)
+		{
+			if (libraryBooks is null || !libraryBooks.Any())
+				return 0;
+			try
             {
-                if (libraryBooks is null || !libraryBooks.Any())
-                    return 0;
-
-                using var context = DbContexts.GetContext();
-
-				// Entry() NoTracking entities before SaveChanges()
-				foreach (var lb in libraryBooks)
-				{
-					lb.IsDeleted = false;
-					context.Entry(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
-				}
-
-                var qtyChanges = context.SaveChanges();
-                if (qtyChanges > 0)
-                    finalizeLibrarySizeChange(context);
-
-                return qtyChanges;
+				return DoDbSizeChangeOperation(ctx =>
+                {
+					ctx.LibraryBooks.RemoveRange(libraryBooks);
+					ctx.Books.RemoveRange(libraryBooks.Select(lb => lb.Book));
+				});
             }
             catch (Exception ex)
             {
@@ -448,36 +437,40 @@ namespace ApplicationServices
             }
         }
 
-        public static int PermanentlyDeleteBooks(this IEnumerable<LibraryBook> libraryBooks)
+        static int DoDbSizeChangeOperation(Action<LibationContext> action)
         {
-            try
-            {
-                if (libraryBooks is null || !libraryBooks.Any())
-                    return 0;
+			try
+			{
+				int qtyChanges;
+				List<LibraryBook>? library;
 
-                using var context = DbContexts.GetContext();
+				using (var context = DbContexts.GetContext())
+				{
+					action?.Invoke(context);
 
-				context.LibraryBooks.RemoveRange(libraryBooks);
-				context.Books.RemoveRange(libraryBooks.Select(lb => lb.Book));				
+					qtyChanges = SaveContext(context);
+					logTime("importIntoDbAsync -- post SaveChanges");
+					library = qtyChanges == 0 ? null : context.GetLibrary_Flat_NoTracking(includeParents: true);
+				}
 
-                var qtyChanges = context.SaveChanges();
-				if (qtyChanges > 0)
-					finalizeLibrarySizeChange(context);
+				if (library is not null)
+					finalizeLibrarySizeChange(library);
+				logTime("importIntoDbAsync -- post finalizeLibrarySizeChange");
 
 				return qtyChanges;
-            }
-            catch (Exception ex)
-            {
-                Log.Logger.Error(ex, "Error restoring books");
-                throw;
-            }
-        }
+			}
+			catch (Exception ex)
+			{
+				Log.Logger.Error(ex, "Error performing DB Size change operation");
+				throw;
+			}
+		}
+
         #endregion
 
         // call this whenever books are added or removed from library
-        private static void finalizeLibrarySizeChange(LibationContext context)
+        private static void finalizeLibrarySizeChange(List<LibraryBook> library)
         {
-            var library = context.GetLibrary_Flat_NoTracking(includeParents: true);
             LibrarySizeChanged?.Invoke(null, library);
         }
 
@@ -490,21 +483,21 @@ namespace ApplicationServices
         public static event EventHandler<IEnumerable<LibraryBook>>? BookUserDefinedItemCommitted;
 
         #region Update book details
-        public static int UpdateUserDefinedItem(
+        public static async Task<int> UpdateUserDefinedItemAsync(
             this LibraryBook lb,
             string? tags = null,
             LiberatedStatus? bookStatus = null,
             LiberatedStatus? pdfStatus = null,
             Rating? rating = null)
-            => new[] { lb }.UpdateUserDefinedItem(tags, bookStatus, pdfStatus, rating);
+            => await UpdateUserDefinedItemAsync([lb], tags, bookStatus, pdfStatus, rating);
 
-        public static int UpdateUserDefinedItem(
+        public static async Task<int> UpdateUserDefinedItemAsync(
             this IEnumerable<LibraryBook> lb,
             string? tags = null,
             LiberatedStatus? bookStatus = null,
             LiberatedStatus? pdfStatus = null,
             Rating? rating = null)
-            => updateUserDefinedItem(
+            => await UpdateUserDefinedItemAsync(
                 lb,
                 udi => {
                     // blank tags are expected. null tags are not
@@ -521,52 +514,54 @@ namespace ApplicationServices
                         udi.UpdateRating(rating.OverallRating, rating.PerformanceRating, rating.StoryRating);
 				});
 
-        public static int UpdateBookStatus(this LibraryBook lb, LiberatedStatus bookStatus, Version? libationVersion, AudioFormat audioFormat, string audioVersion)
-            => lb.UpdateUserDefinedItem(udi => { udi.BookStatus = bookStatus; udi.SetLastDownloaded(libationVersion, audioFormat, audioVersion); });
+        public static async Task<int> UpdateBookStatusAsync(this LibraryBook lb, LiberatedStatus bookStatus, Version? libationVersion, AudioFormat audioFormat, string audioVersion)
+            => await lb.UpdateUserDefinedItemAsync(udi => { udi.BookStatus = bookStatus; udi.SetLastDownloaded(libationVersion, audioFormat, audioVersion); });
 
-        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 async Task<int> UpdateBookStatusAsync(this LibraryBook libraryBook, LiberatedStatus bookStatus)
+            => await libraryBook.UpdateUserDefinedItemAsync(udi => udi.BookStatus = bookStatus);
+        public static async Task<int> UpdateBookStatusAsync(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus bookStatus)
+            => await libraryBooks.UpdateUserDefinedItemAsync(udi => udi.BookStatus = bookStatus);
 
-        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 async Task<int> UpdatePdfStatusAsync(this LibraryBook libraryBook, LiberatedStatus pdfStatus)
+            => await libraryBook.UpdateUserDefinedItemAsync(udi => udi.SetPdfStatus(pdfStatus));
+        public static async Task<int> UpdatePdfStatusAsync(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus pdfStatus)
+            => await libraryBooks.UpdateUserDefinedItemAsync(udi => udi.SetPdfStatus(pdfStatus));
 
-        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 async Task<int> UpdateTagsAsync(this LibraryBook libraryBook, string tags)
+            => await libraryBook.UpdateUserDefinedItemAsync(udi => udi.Tags = tags);
+        public static async Task<int> UpdateTagsAsync(this IEnumerable<LibraryBook> libraryBooks, string tags)
+            => await libraryBooks.UpdateUserDefinedItemAsync(udi => udi.Tags = tags);
 
-        public static int UpdateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action)
-            => libraryBook.updateUserDefinedItem(action);
-        public static int UpdateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
-            => libraryBooks.updateUserDefinedItem(action);
+		public static async Task<int> UpdateUserDefinedItemAsync(this LibraryBook libraryBook, Action<UserDefinedItem> action)
+            => await UpdateUserDefinedItemAsync([libraryBook], action);
 
-        private static int updateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action) => new[] { libraryBook }.updateUserDefinedItem(action);
-        private static int updateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
+		public static Task<int> UpdateUserDefinedItemAsync(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
+            => Task.Run(() => libraryBooks.updateUserDefinedItem(action));
+
+		private static int updateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
         {
             try
             {
                 if (libraryBooks is null || !libraryBooks.Any())
                     return 0;
 
-                using var context = DbContexts.GetContext();
-
-				// Entry() instead of Attach() due to possible stack overflow with large tables
-				foreach (var book in libraryBooks)
+                int qtyChanges;
+                using (var context = DbContexts.GetContext())
                 {
-					action?.Invoke(book.Book.UserDefinedItem);
+                    // Entry() instead of Attach() due to possible stack overflow with large tables
+                    foreach (var book in libraryBooks)
+                    {
+                        action?.Invoke(book.Book.UserDefinedItem);
 
-					var udiEntity = context.Entry(book.Book.UserDefinedItem);
+                        var udiEntity = context.Entry(book.Book.UserDefinedItem);
 
-					udiEntity.State = Microsoft.EntityFrameworkCore.EntityState.Modified;
-                    if (udiEntity.Reference(udi => udi.Rating).TargetEntry is Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<Rating> ratingEntry)
-                        ratingEntry.State = Microsoft.EntityFrameworkCore.EntityState.Modified;
-				}
+                        udiEntity.State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                        if (udiEntity.Reference(udi => udi.Rating).TargetEntry is Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<Rating> ratingEntry)
+                            ratingEntry.State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                    }
 
-                var qtyChanges = context.SaveChanges();
+                    qtyChanges = context.SaveChanges();
+                }
                 if (qtyChanges > 0)
                     BookUserDefinedItemCommitted?.Invoke(null, libraryBooks);
 
@@ -582,7 +577,7 @@ namespace ApplicationServices
 
         // must be here instead of in db layer due to AaxcExists
         public static LiberatedStatus Liberated_Status(Book book)
-            => book.Audio_Exists() ? book.UserDefinedItem.BookStatus
+            => book.AudioExists ? book.UserDefinedItem.BookStatus
             : AudibleFileStorage.AaxcExists(book.AudibleProductId) ? LiberatedStatus.PartialDownload
             : LiberatedStatus.NotLiberated;
 
@@ -591,7 +586,7 @@ namespace ApplicationServices
 
         // below are queries, not commands. maybe I should make a LibraryQueries. except there's already one of those...
 
-        public record LibraryStats(int booksFullyBackedUp, int booksDownloadedOnly, int booksNoProgress, int booksError, int booksUnavailable, int pdfsDownloaded, int pdfsNotDownloaded, int pdfsUnavailable)
+        public record LibraryStats(int booksFullyBackedUp, int booksDownloadedOnly, int booksNoProgress, int booksError, int booksUnavailable, int pdfsDownloaded, int pdfsNotDownloaded, int pdfsUnavailable, IEnumerable<LibraryBook> LibraryBooks)
         {
             public int PendingBooks => booksNoProgress + booksDownloadedOnly;
             public bool HasPendingBooks => PendingBooks > 0;
@@ -650,7 +645,7 @@ namespace ApplicationServices
 
             var pdfResults = libraryBooks
                 .AsParallel()
-                .Where(lb => lb.Book.HasPdf())
+                .Where(lb => lb.Book.HasPdf)
                 .Select(lb => new { absent = lb.AbsentFromLastScan, status = Pdf_Status(lb.Book) })
                 .ToList();
 
@@ -660,7 +655,7 @@ namespace ApplicationServices
 
 			Log.Logger.Information("PDF counts. {@DebugInfo}", new { total = pdfResults.Count, pdfsDownloaded, pdfsNotDownloaded, pdfsUnavailable });
 
-            return new(booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, booksUnavailable, pdfsDownloaded, pdfsNotDownloaded, pdfsUnavailable);
+            return new(booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, booksUnavailable, pdfsDownloaded, pdfsNotDownloaded, pdfsUnavailable, libraryBooks);
         }
     }
 }

Source/ApplicationServices/LibraryExporter.cs

@@ -1,11 +1,12 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+using ClosedXML.Excel;
 using CsvHelper;
 using CsvHelper.Configuration.Attributes;
 using DataLayer;
 using Newtonsoft.Json;
-using NPOI.XSSF.UserModel;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
 
 namespace ApplicationServices
 {
@@ -149,12 +150,12 @@ namespace ApplicationServices
 				Locale = a.Book.Locale,
 				Title = a.Book.Title,
 				Subtitle = a.Book.Subtitle,
-				AuthorNames = a.Book.AuthorNames(),
-				NarratorNames = a.Book.NarratorNames(),
+				AuthorNames = a.Book.AuthorNames,
+				NarratorNames = a.Book.NarratorNames,
 				LengthInMinutes = a.Book.LengthInMinutes,
 				Description = a.Book.Description,
 				Publisher = a.Book.Publisher,
-				HasPdf = a.Book.HasPdf(),
+				HasPdf = a.Book.HasPdf,
 				SeriesNames = a.Book.SeriesNames(),
 				SeriesOrder = a.Book.SeriesLink.Any() ? a.Book.SeriesLink?.Select(sl => $"{sl.Order} : {sl.Series.Name}").Aggregate((a, b) => $"{a}, {b}") : "",
 				CommunityRatingOverall = a.Book.Rating?.OverallRating.ZeroIsNull(),
@@ -208,19 +209,11 @@ namespace ApplicationServices
 		{
 			var dtos = DbContexts.GetLibrary_Flat_NoTracking().ToDtos();
 
-			var workbook = new XSSFWorkbook();
-			var sheet = workbook.CreateSheet("Library");
+			using var workbook = new XLWorkbook();
+			var sheet = workbook.AddWorksheet("Library");
 
-			var detailSubtotalFont = workbook.CreateFont();
-			detailSubtotalFont.IsBold = true;
-
-			var detailSubtotalCellStyle = workbook.CreateCellStyle();
-			detailSubtotalCellStyle.SetFont(detailSubtotalFont);
 
 			// headers
-			var rowIndex = 0;
-			var row = sheet.CreateRow(rowIndex);
-
 			var columns = new[] {
 				nameof(ExportDto.Account),
 				nameof(ExportDto.DateAdded),
@@ -261,81 +254,71 @@ namespace ApplicationServices
                 nameof(ExportDto.ChannelCount),
                 nameof(ExportDto.BitRate)
             };
-			var col = 0;
+
+			int rowIndex = 1, col = 1;
+			var headerRow = sheet.Row(rowIndex++);
 			foreach (var c in columns)
 			{
-				var cell = row.CreateCell(col++);
-				var name = ExportDto.GetName(c);
-				cell.SetCellValue(name);
-				cell.CellStyle = detailSubtotalCellStyle;
+				var headerCell = headerRow.Cell(col++);
+				headerCell.Value = ExportDto.GetName(c);
+				headerCell.Style.Font.Bold = true;
 			}
 
-			var dateFormat = workbook.CreateDataFormat();
-			var dateStyle = workbook.CreateCellStyle();
-			dateStyle.DataFormat = dateFormat.GetFormat("MM/dd/yyyy HH:mm:ss");
-
-			rowIndex++;
+			var dateFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern + " HH:mm:ss";
 
 			// Add data rows
 			foreach (var dto in dtos)
 			{
-				col = 0;
-				row = sheet.CreateRow(rowIndex++);
+				col = 1;
+				var row = sheet.Row(rowIndex++);
 
-				row.CreateCell(col++).SetCellValue(dto.Account);
-				row.CreateCell(col++).SetCellValue(dto.DateAdded).CellStyle = dateStyle;
-				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);
-				row.CreateCell(col++).SetCellValue(dto.Description);
-				row.CreateCell(col++).SetCellValue(dto.Publisher);
-				row.CreateCell(col++).SetCellValue(dto.HasPdf);
-				row.CreateCell(col++).SetCellValue(dto.SeriesNames);
-				row.CreateCell(col++).SetCellValue(dto.SeriesOrder);
-				row.CreateCell(col++).SetCellValue(dto.CommunityRatingOverall);
-				row.CreateCell(col++).SetCellValue(dto.CommunityRatingPerformance);
-				row.CreateCell(col++).SetCellValue(dto.CommunityRatingStory);
-				row.CreateCell(col++).SetCellValue(dto.PictureId);
-				row.CreateCell(col++).SetCellValue(dto.IsAbridged);
-				row.CreateCell(col++).SetCellValue(dto.DatePublished).CellStyle = dateStyle;
-				row.CreateCell(col++).SetCellValue(dto.CategoriesNames);
-				row.CreateCell(col++).SetCellValue(dto.MyRatingOverall);
-				row.CreateCell(col++).SetCellValue(dto.MyRatingPerformance);
-				row.CreateCell(col++).SetCellValue(dto.MyRatingStory);
-				row.CreateCell(col++).SetCellValue(dto.MyLibationTags);
-				row.CreateCell(col++).SetCellValue(dto.BookStatus);
-				row.CreateCell(col++).SetCellValue(dto.PdfStatus);
-				row.CreateCell(col++).SetCellValue(dto.ContentType);
-				row.CreateCell(col++).SetCellValue(dto.Language);
-				row.CreateCell(col++).SetCellValue(dto.LastDownloaded).CellStyle = dateStyle;
-				row.CreateCell(col++).SetCellValue(dto.LastDownloadedVersion);
-				row.CreateCell(col++).SetCellValue(dto.IsFinished);
-				row.CreateCell(col++).SetCellValue(dto.IsSpatial);
-				row.CreateCell(col++).SetCellValue(dto.LastDownloadedFileVersion);
-				row.CreateCell(col++).SetCellValue(dto.CodecString);
-				row.CreateCell(col++).SetCellValue(dto.SampleRate);
-				row.CreateCell(col++).SetCellValue(dto.ChannelCount);
-				row.CreateCell(col++).SetCellValue(dto.BitRate);
+				row.Cell(col++).Value = dto.Account;
+				row.Cell(col++).SetDate(dto.DateAdded, dateFormat);
+				row.Cell(col++).Value = dto.AudibleProductId;
+				row.Cell(col++).Value = dto.Locale;
+				row.Cell(col++).Value = dto.Title;
+				row.Cell(col++).Value = dto.Subtitle;
+				row.Cell(col++).Value = dto.AuthorNames;
+				row.Cell(col++).Value = dto.NarratorNames;
+				row.Cell(col++).Value = dto.LengthInMinutes;
+				row.Cell(col++).Value = dto.Description;
+				row.Cell(col++).Value = dto.Publisher;
+				row.Cell(col++).Value = dto.HasPdf;
+				row.Cell(col++).Value = dto.SeriesNames;
+				row.Cell(col++).Value = dto.SeriesOrder;
+				row.Cell(col++).Value = dto.CommunityRatingOverall;
+				row.Cell(col++).Value = dto.CommunityRatingPerformance;
+				row.Cell(col++).Value = dto.CommunityRatingStory;
+				row.Cell(col++).Value = dto.PictureId;
+				row.Cell(col++).Value = dto.IsAbridged;
+				row.Cell(col++).SetDate(dto.DatePublished, dateFormat);
+				row.Cell(col++).Value = dto.CategoriesNames;
+				row.Cell(col++).Value = dto.MyRatingOverall;
+				row.Cell(col++).Value = dto.MyRatingPerformance;
+				row.Cell(col++).Value = dto.MyRatingStory;
+				row.Cell(col++).Value = dto.MyLibationTags;
+				row.Cell(col++).Value = dto.BookStatus;
+				row.Cell(col++).Value = dto.PdfStatus;
+				row.Cell(col++).Value = dto.ContentType;
+				row.Cell(col++).Value = dto.Language;
+				row.Cell(col++).SetDate(dto.LastDownloaded, dateFormat);
+				row.Cell(col++).Value = dto.LastDownloadedVersion;
+				row.Cell(col++).Value = dto.IsFinished;
+				row.Cell(col++).Value = dto.IsSpatial;
+				row.Cell(col++).Value = dto.LastDownloadedFileVersion;
+				row.Cell(col++).Value = dto.CodecString;
+				row.Cell(col++).Value = dto.SampleRate;
+				row.Cell(col++).Value = dto.ChannelCount;
+				row.Cell(col++).Value = dto.BitRate;
 			}
 
-			using var fileData = new System.IO.FileStream(saveFilePath, System.IO.FileMode.Create);
-			workbook.Write(fileData);
+			workbook.SaveAs(saveFilePath);
 		}
 
-		private static NPOI.SS.UserModel.ICell SetCellValue(this NPOI.SS.UserModel.ICell cell, DateTime? nullableDate)
-			=> nullableDate.HasValue ? cell.SetCellValue(nullableDate.Value)
-			: cell.SetCellType(NPOI.SS.UserModel.CellType.Numeric);
-
-		private static NPOI.SS.UserModel.ICell SetCellValue(this NPOI.SS.UserModel.ICell cell, int? nullableInt)
-			=> nullableInt.HasValue ? cell.SetCellValue(nullableInt.Value)
-			: cell.SetCellType(NPOI.SS.UserModel.CellType.Numeric);
-
-		private static NPOI.SS.UserModel.ICell SetCellValue(this NPOI.SS.UserModel.ICell cell, float? nullableFloat)
-			=> nullableFloat.HasValue ? cell.SetCellValue(nullableFloat.Value)
-			: cell.SetCellType(NPOI.SS.UserModel.CellType.Numeric);
+		private static void SetDate(this IXLCell cell, DateTime? value, string dateFormat)
+		{
+			cell.Value = value;
+			cell.Style.DateFormat.Format = dateFormat;
+		}
 	}
 }

Source/ApplicationServices/RecordExporter.cs

@@ -1,10 +1,11 @@
 using AudibleApi.Common;
+using ClosedXML.Excel;
 using CsvHelper;
 using DataLayer;
 using Newtonsoft.Json.Linq;
-using NPOI.XSSF.UserModel;
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 
 namespace ApplicationServices
@@ -16,19 +17,10 @@ namespace ApplicationServices
 			if (!records.Any())
 				return;
 
-			using var workbook = new XSSFWorkbook();
-			var sheet = workbook.CreateSheet("Records");
-
-			var detailSubtotalFont = workbook.CreateFont();
-			detailSubtotalFont.IsBold = true;
-
-			var detailSubtotalCellStyle = workbook.CreateCellStyle();
-			detailSubtotalCellStyle.SetFont(detailSubtotalFont);
+			using var workbook = new XLWorkbook();
+			var worksheet = workbook.AddWorksheet("Records");
 
 			// headers
-			var rowIndex = 0;
-			var row = sheet.CreateRow(rowIndex);
-
 			var columns = new List<string>
 			{
 				nameof(Type.Name),
@@ -49,56 +41,52 @@ namespace ApplicationServices
 			if (records.OfType<Clip>().Any())
 				columns.Add(nameof(Clip.Title));
 
-			var col = 0;
+			int rowIndex = 1, col = 1;
+			var headerRow = worksheet.Row(rowIndex++);
 			foreach (var c in columns)
 			{
-				var cell = row.CreateCell(col++);
-				cell.SetCellValue(c);
-				cell.CellStyle = detailSubtotalCellStyle;
+				var headerCell = headerRow.Cell(col++);
+				headerCell.Value = c;
+				headerCell.Style.Font.Bold = true;
 			}
 
-			var dateFormat = workbook.CreateDataFormat();
-			var dateStyle = workbook.CreateCellStyle();
-			dateStyle.DataFormat = dateFormat.GetFormat("MM/dd/yyyy HH:mm:ss");
+			var dateFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern + " HH:mm:ss";
 
 			// Add data rows
 			foreach (var record in records)
 			{
-				col = 0;
+				col = 1;
+				var row = worksheet.Row(rowIndex++);
 
-				row = sheet.CreateRow(++rowIndex);
-
-				row.CreateCell(col++).SetCellValue(record.GetType().Name);
-
-				var dateCreatedCell = row.CreateCell(col++);
-				dateCreatedCell.CellStyle = dateStyle;
-				dateCreatedCell.SetCellValue(record.Created.DateTime);
-
-				row.CreateCell(col++).SetCellValue(record.Start.TotalMilliseconds);
+				row.Cell(col++).Value = record.GetType().Name;
+				row.Cell(col++).SetDate(record.Created.DateTime, dateFormat);
+				row.Cell(col++).Value = record.Start.TotalMilliseconds;
 
 				if (record is IAnnotation annotation)
 				{
-					row.CreateCell(col++).SetCellValue(annotation.AnnotationId);
 
-					var lastModifiedCell = row.CreateCell(col++);
-					lastModifiedCell.CellStyle = dateStyle;
-					lastModifiedCell.SetCellValue(annotation.LastModified.DateTime);
+					row.Cell(col++).Value = annotation.AnnotationId;
+					row.Cell(col++).SetDate(annotation.LastModified.DateTime, dateFormat);
 
 					if (annotation is IRangeAnnotation rangeAnnotation)
 					{
-						row.CreateCell(col++).SetCellValue(rangeAnnotation.End.TotalMilliseconds);
-						row.CreateCell(col++).SetCellValue(rangeAnnotation.Text);
+						row.Cell(col++).Value = rangeAnnotation.End.TotalMilliseconds;
+						row.Cell(col++).Value = rangeAnnotation.Text;
 
 						if (rangeAnnotation is Clip clip)
-							row.CreateCell(col++).SetCellValue(clip.Title);
+							row.Cell(col++).Value = clip.Title;
 					}
 				}
 			}
 
-			using var fileData = new System.IO.FileStream(saveFilePath, System.IO.FileMode.Create);
-			workbook.Write(fileData);
+			workbook.SaveAs(saveFilePath);
 		}
 
+		private static void SetDate(this IXLCell cell, DateTime? value, string dateFormat)
+		{
+			cell.Value = value;
+			cell.Style.DateFormat.Format = dateFormat;
+		}
 		public static void ToJson(string saveFilePath, LibraryBook libraryBook, IEnumerable<IRecord> records)
 		{
 			if (!records.Any())

Source/AudibleUtilities/Account.cs

@@ -18,68 +18,64 @@ namespace AudibleUtilities
 		public string AccountId { get; }
 
 		// user-friendly, non-canonical name. mutable
-		private string _accountName;
 		public string AccountName
 		{
-			get => _accountName;
+			get => field;
 			set
 			{
 				if (string.IsNullOrWhiteSpace(value))
 					return;
 				var v = value.Trim();
-				if (v == _accountName)
+				if (v == field)
 					return;
-				_accountName = v;
+				field = v;
 				update();
 			}
 		}
 
 		// whether to include this account when scanning libraries.
 		// technically this is an app setting; not an attribute of account. but since it's managed with accounts, it makes sense to put this exception-to-the-rule here
-		private bool _libraryScan = true;
 		public bool LibraryScan
 		{
-			get => _libraryScan;
+			get => field;
 			set
 			{
-				if (value == _libraryScan)
+				if (value == field)
 					return;
-				_libraryScan = value;
+				field = value;
 				update();
 			}
 		}
 
-		private string _decryptKey = "";
 		/// <summary>aka: activation bytes</summary>
 		public string DecryptKey
 		{
-			get => _decryptKey;
+			get => field ?? "";
 			set
 			{
 				var v = (value ?? "").Trim();
-				if (v == _decryptKey)
+				if (v == field)
 					return;
-				_decryptKey = v;
+				field = v;
 				update();
 			}
 		}
 
-		private Identity _identity;
 		public Identity IdentityTokens
 		{
-			get => _identity;
+			get => field;
 			set
 			{
-				if (_identity is null && value is null)
+				if (field is null && value is null)
 					return;
 
-				if (_identity is not null)
-					_identity.Updated -= update;
+				if (field is not null)
+					field.Updated -= update;
 
 				if (value is not null)
 					value.Updated += update;
 
-				_identity = value;
+				field = value;
 				update();
 			}
 		}

Source/AudibleUtilities/AccountsSettings.cs

@@ -6,6 +6,7 @@ using AudibleApi.Authorization;
 using Dinah.Core;
 using Newtonsoft.Json;
 
+#nullable enable
 namespace AudibleUtilities
 {
 	// 'AccountsSettings' is intentionally NOT IEnumerable<> so that properties can be added/extended
@@ -14,8 +15,8 @@ namespace AudibleUtilities
 	//   JSON :  Array (properties on the collection will not be serialized)
 	public class AccountsSettings : IUpdatable
 	{
-		public event EventHandler Updated;
-		private void update(object sender = null, EventArgs e = null)
+		public event EventHandler? Updated;
+		private void update(object? sender = null, EventArgs? e = null)
 		{
 			foreach (var account in Accounts)
 				validate(account);
@@ -48,9 +49,9 @@ namespace AudibleUtilities
 			}
 		}
 
-		private string _cdm;
+		private string? _cdm;
 		[JsonProperty]
-		public string Cdm
+		public string? Cdm
 		{
 			get => _cdm;
 			set
@@ -68,7 +69,7 @@ namespace AudibleUtilities
 		#endregion
 
 		#region de/serialize
-		public static AccountsSettings FromJson(string json)
+		public static AccountsSettings? FromJson(string json)
 			=> JsonConvert.DeserializeObject<AccountsSettings>(json, Identity.GetJsonSerializerSettings());
 
 		public string ToJson(Formatting formatting = Formatting.Indented)
@@ -107,7 +108,7 @@ namespace AudibleUtilities
 			account.Updated += update;
 		}
 
-		public Account GetAccount(string accountId, string locale)
+		public Account? GetAccount(string accountId, string? locale)
 		{
 			if (locale is null)
 				return null;

Source/AudibleUtilities/AudibleApiStorage.cs

@@ -25,7 +25,7 @@ namespace AudibleUtilities
 
 	public static class AudibleApiStorage
 	{
-		public static string AccountsSettingsFile => Path.Combine(Configuration.Instance.LibationFiles, "AccountsSettings.json");
+		public static string AccountsSettingsFile => Path.Combine(Configuration.Instance.LibationFiles.Location, "AccountsSettings.json");
 
 		public static event EventHandler<AccountSettingsLoadErrorEventArgs> LoadError;
 

Source/AudibleUtilities/AudibleApiValidators.cs

@@ -28,10 +28,11 @@ namespace AudibleUtilities
 
 			if (items.Any(i => string.IsNullOrWhiteSpace(i.ProductId)))
 				exceptions.Add(new ArgumentException($"Collection contains item(s) with null or blank {nameof(Item.ProductId)}", nameof(items)));
-			if (items.Any(i => i.DateAdded < new DateTime(1980, 1, 1)))
-				exceptions.Add(new ArgumentException($"Collection contains item(s) with invalid {nameof(Item.DateAdded)}", nameof(items)));
+            //// unfortunately, an actual user has a title with a beginning-of-time 'purchase_date'
+            //if (items.Any(i => i.DateAdded < new DateTime(1980, 1, 1)))
+            //	exceptions.Add(new ArgumentException($"Collection contains item(s) with invalid {nameof(Item.DateAdded)}", nameof(items)));
 
-			return exceptions;
+            return exceptions;
 		}
 	}
 	public class BookValidator : IValidator
@@ -91,7 +92,7 @@ namespace AudibleUtilities
 			if (distinct.Any(s => s.SeriesId is null))
 				exceptions.Add(new ArgumentException($"Collection contains {nameof(Item.Series)} with null {nameof(Series.SeriesId)}", nameof(items)));
 
-			//// unfortunately, a user has a series with no name
+			//// unfortunately, an actual 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)));
 

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AudibleApi" Version="9.4.4.1" />
-    <PackageReference Include="Google.Protobuf" Version="3.32.0" />
+    <PackageReference Include="AudibleApi" Version="10.1.0.1" />
+    <PackageReference Include="Google.Protobuf" Version="3.33.1" />
   </ItemGroup>
 
   <ItemGroup>

Source/DataLayer.Postgres/DataLayer.Postgres.csproj

@@ -0,0 +1,38 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
+    <OutputType>Library</OutputType>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+		<DebugType>embedded</DebugType>
+	</PropertyGroup>
+
+	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+		<DebugType>embedded</DebugType>
+	</PropertyGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\DataLayer\DataLayer.csproj" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <Folder Include="Migrations\" />
+	</ItemGroup>
+
+</Project>

Source/DataLayer.Postgres/Migrations/20251027224441_InitialPostgres.Designer.cs

@@ -0,0 +1,494 @@
+// <auto-generated />
+using System;
+using DataLayer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DataLayer.Postgres.Migrations
+{
+    [DbContext(typeof(LibationContext))]
+    [Migration("20251027224441_InitialPostgres")]
+    partial class InitialPostgres
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("BookId"));
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("text");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsSpatial")
+                        .HasColumnType("boolean");
+
+                    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.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("smallint");
+
+                    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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("CategoryId"));
+
+                    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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("CategoryLadderId"));
+
+                    b.HasKey("CategoryLadderId");
+
+                    b.ToTable("CategoryLadders");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("ContributorId"));
+
+                    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("boolean");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("IncludedUntil")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("SeriesId"));
+
+                    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");
+
+                            NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b1.Property<int>("SupplementId"));
+
+                            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("boolean");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("timestamp without time zone");
+
+                            b1.Property<string>("LastDownloadedFileVersion")
+                                .HasColumnType("text");
+
+                            b1.Property<long?>("LastDownloadedFormat")
+                                .HasColumnType("bigint");
+
+                            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.Postgres/Migrations/20251027224441_InitialPostgres.cs

@@ -0,0 +1,372 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DataLayer.Postgres.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialPostgres : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Books",
+                columns: table => new
+                {
+                    BookId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    AudibleProductId = table.Column<string>(type: "text", nullable: true),
+                    Title = table.Column<string>(type: "text", nullable: true),
+                    Subtitle = table.Column<string>(type: "text", nullable: true),
+                    Description = table.Column<string>(type: "text", nullable: true),
+                    LengthInMinutes = table.Column<int>(type: "integer", nullable: false),
+                    ContentType = table.Column<int>(type: "integer", nullable: false),
+                    Locale = table.Column<string>(type: "text", nullable: true),
+                    PictureId = table.Column<string>(type: "text", nullable: true),
+                    PictureLarge = table.Column<string>(type: "text", nullable: true),
+                    IsAbridged = table.Column<bool>(type: "boolean", nullable: false),
+                    IsSpatial = table.Column<bool>(type: "boolean", nullable: false),
+                    DatePublished = table.Column<DateTime>(type: "timestamp without time zone", nullable: true),
+                    Language = table.Column<string>(type: "text", nullable: true),
+                    Rating_OverallRating = table.Column<float>(type: "real", nullable: true),
+                    Rating_PerformanceRating = table.Column<float>(type: "real", nullable: true),
+                    Rating_StoryRating = table.Column<float>(type: "real", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Books", x => x.BookId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Categories",
+                columns: table => new
+                {
+                    CategoryId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    AudibleCategoryId = table.Column<string>(type: "text", nullable: true),
+                    Name = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Categories", x => x.CategoryId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "CategoryLadders",
+                columns: table => new
+                {
+                    CategoryLadderId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_CategoryLadders", x => x.CategoryLadderId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Contributors",
+                columns: table => new
+                {
+                    ContributorId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: true),
+                    AudibleContributorId = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Contributors", x => x.ContributorId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Series",
+                columns: table => new
+                {
+                    SeriesId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    AudibleSeriesId = table.Column<string>(type: "text", nullable: true),
+                    Name = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Series", x => x.SeriesId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "LibraryBooks",
+                columns: table => new
+                {
+                    BookId = table.Column<int>(type: "integer", nullable: false),
+                    DateAdded = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    Account = table.Column<string>(type: "text", nullable: true),
+                    IsDeleted = table.Column<bool>(type: "boolean", nullable: false),
+                    AbsentFromLastScan = table.Column<bool>(type: "boolean", nullable: false),
+                    IncludedUntil = table.Column<DateTime>(type: "timestamp without time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_LibraryBooks", x => x.BookId);
+                    table.ForeignKey(
+                        name: "FK_LibraryBooks_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Supplement",
+                columns: table => new
+                {
+                    SupplementId = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    BookId = table.Column<int>(type: "integer", nullable: false),
+                    Url = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Supplement", x => x.SupplementId);
+                    table.ForeignKey(
+                        name: "FK_Supplement_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserDefinedItem",
+                columns: table => new
+                {
+                    BookId = table.Column<int>(type: "integer", nullable: false),
+                    LastDownloaded = table.Column<DateTime>(type: "timestamp without time zone", nullable: true),
+                    LastDownloadedVersion = table.Column<string>(type: "text", nullable: true),
+                    LastDownloadedFormat = table.Column<long>(type: "bigint", nullable: true),
+                    LastDownloadedFileVersion = table.Column<string>(type: "text", nullable: true),
+                    Tags = table.Column<string>(type: "text", nullable: true),
+                    Rating_OverallRating = table.Column<float>(type: "real", nullable: true),
+                    Rating_PerformanceRating = table.Column<float>(type: "real", nullable: true),
+                    Rating_StoryRating = table.Column<float>(type: "real", nullable: true),
+                    BookStatus = table.Column<int>(type: "integer", nullable: false),
+                    PdfStatus = table.Column<int>(type: "integer", nullable: true),
+                    IsFinished = table.Column<bool>(type: "boolean", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserDefinedItem", x => x.BookId);
+                    table.ForeignKey(
+                        name: "FK_UserDefinedItem_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            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__categoryLaddersCate~",
+                        column: x => x._categoryLaddersCategoryLadderId,
+                        principalTable: "CategoryLadders",
+                        principalColumn: "CategoryLadderId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BookContributor",
+                columns: table => new
+                {
+                    BookId = table.Column<int>(type: "integer", nullable: false),
+                    ContributorId = table.Column<int>(type: "integer", nullable: false),
+                    Role = table.Column<int>(type: "integer", nullable: false),
+                    Order = table.Column<byte>(type: "smallint", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BookContributor", x => new { x.BookId, x.ContributorId, x.Role });
+                    table.ForeignKey(
+                        name: "FK_BookContributor_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_BookContributor_Contributors_ContributorId",
+                        column: x => x.ContributorId,
+                        principalTable: "Contributors",
+                        principalColumn: "ContributorId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SeriesBook",
+                columns: table => new
+                {
+                    SeriesId = table.Column<int>(type: "integer", nullable: false),
+                    BookId = table.Column<int>(type: "integer", nullable: false),
+                    Order = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SeriesBook", x => new { x.SeriesId, x.BookId });
+                    table.ForeignKey(
+                        name: "FK_SeriesBook_Books_BookId",
+                        column: x => x.BookId,
+                        principalTable: "Books",
+                        principalColumn: "BookId",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_SeriesBook_Series_SeriesId",
+                        column: x => x.SeriesId,
+                        principalTable: "Series",
+                        principalColumn: "SeriesId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.InsertData(
+                table: "Contributors",
+                columns: new[] { "ContributorId", "AudibleContributorId", "Name" },
+                values: new object[] { -1, null, "" });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookCategory_BookId",
+                table: "BookCategory",
+                column: "BookId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookCategory_CategoryLadderId",
+                table: "BookCategory",
+                column: "CategoryLadderId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookContributor_BookId",
+                table: "BookContributor",
+                column: "BookId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BookContributor_ContributorId",
+                table: "BookContributor",
+                column: "ContributorId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Books_AudibleProductId",
+                table: "Books",
+                column: "AudibleProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Categories_AudibleCategoryId",
+                table: "Categories",
+                column: "AudibleCategoryId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_CategoryCategoryLadder__categoryLaddersCategoryLadderId",
+                table: "CategoryCategoryLadder",
+                column: "_categoryLaddersCategoryLadderId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Contributors_Name",
+                table: "Contributors",
+                column: "Name");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Series_AudibleSeriesId",
+                table: "Series",
+                column: "AudibleSeriesId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SeriesBook_BookId",
+                table: "SeriesBook",
+                column: "BookId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SeriesBook_SeriesId",
+                table: "SeriesBook",
+                column: "SeriesId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Supplement_BookId",
+                table: "Supplement",
+                column: "BookId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "BookCategory");
+
+            migrationBuilder.DropTable(
+                name: "BookContributor");
+
+            migrationBuilder.DropTable(
+                name: "CategoryCategoryLadder");
+
+            migrationBuilder.DropTable(
+                name: "LibraryBooks");
+
+            migrationBuilder.DropTable(
+                name: "SeriesBook");
+
+            migrationBuilder.DropTable(
+                name: "Supplement");
+
+            migrationBuilder.DropTable(
+                name: "UserDefinedItem");
+
+            migrationBuilder.DropTable(
+                name: "Contributors");
+
+            migrationBuilder.DropTable(
+                name: "Categories");
+
+            migrationBuilder.DropTable(
+                name: "CategoryLadders");
+
+            migrationBuilder.DropTable(
+                name: "Series");
+
+            migrationBuilder.DropTable(
+                name: "Books");
+        }
+    }
+}

Source/DataLayer.Postgres/Migrations/LibationContextModelSnapshot.cs

@@ -0,0 +1,491 @@
+// <auto-generated />
+using System;
+using DataLayer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DataLayer.Postgres.Migrations
+{
+    [DbContext(typeof(LibationContext))]
+    partial class LibationContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("BookId"));
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("text");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsSpatial")
+                        .HasColumnType("boolean");
+
+                    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.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("smallint");
+
+                    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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("CategoryId"));
+
+                    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");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("CategoryLadderId"));
+
+                    b.HasKey("CategoryLadderId");
+
+                    b.ToTable("CategoryLadders");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("ContributorId"));
+
+                    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("boolean");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("IncludedUntil")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("SeriesId"));
+
+                    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");
+
+                            NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b1.Property<int>("SupplementId"));
+
+                            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("boolean");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("timestamp without time zone");
+
+                            b1.Property<string>("LastDownloadedFileVersion")
+                                .HasColumnType("text");
+
+                            b1.Property<long?>("LastDownloadedFormat")
+                                .HasColumnType("bigint");
+
+                            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.Postgres/PostgresContextFactory.cs

@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace DataLayer.Postgres
+{
+    public class PostgresContextFactory : IDesignTimeDbContextFactory<LibationContext>
+    {
+        public LibationContext CreateDbContext(string[] args)
+        {
+            return LibationContextFactory.CreatePostgres(string.Empty);
+        }
+    }
+}

Source/DataLayer.Sqlite/DataLayer.Sqlite.csproj

@@ -0,0 +1,34 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
+    <OutputType>Library</OutputType>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+		<DebugType>embedded</DebugType>
+	</PropertyGroup>
+
+	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+		<DebugType>embedded</DebugType>
+	</PropertyGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\DataLayer\DataLayer.csproj" />
+	</ItemGroup>
+
+</Project>

Source/DataLayer.Sqlite/Migrations/20251020175053_AddIncludedUntil.Designer.cs

@@ -0,0 +1,477 @@
+// <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("20251020175053_AddIncludedUntil")]
+    partial class AddIncludedUntil
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.8");
+
+            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<bool>("IsSpatial")
+                        .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.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<DateTime?>("IncludedUntil")
+                        .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>("LastDownloadedFileVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<long?>("LastDownloadedFormat")
+                                .HasColumnType("INTEGER");
+
+                            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.Sqlite/Migrations/20251020175053_AddIncludedUntil.cs

@@ -0,0 +1,29 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddIncludedUntil : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "IncludedUntil",
+                table: "LibraryBooks",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IncludedUntil",
+                table: "LibraryBooks");
+        }
+    }
+}

Source/DataLayer.Sqlite/Migrations/LibationContextModelSnapshot.cs

@@ -15,7 +15,7 @@ namespace DataLayer.Migrations
         protected override void BuildModel(ModelBuilder modelBuilder)
         {
 #pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "9.0.7");
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.8");
 
             modelBuilder.Entity("CategoryCategoryLadder", b =>
                 {
@@ -194,6 +194,9 @@ namespace DataLayer.Migrations
                     b.Property<DateTime>("DateAdded")
                         .HasColumnType("TEXT");
 
+                    b.Property<DateTime?>("IncludedUntil")
+                        .HasColumnType("TEXT");
+
                     b.Property<bool>("IsDeleted")
                         .HasColumnType("INTEGER");
 

Source/DataLayer.Sqlite/SqliteContextFactory.cs

@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace DataLayer.Sqlite
+{
+    public class SqliteContextFactory : IDesignTimeDbContextFactory<LibationContext>
+    {
+        public LibationContext CreateDbContext(string[] args)
+        {
+            return LibationContextFactory.CreateSqlite(string.Empty);
+        }
+    }
+}

Source/DataLayer/DataLayer.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -10,18 +10,25 @@
   </PropertyGroup>
   
   <ItemGroup>
-    <PackageReference Include="Dinah.Core" Version="9.0.2.1" />
-    <PackageReference Include="Dinah.EntityFrameworkCore" Version="9.0.0.1" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.8">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.8" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.8">
+    <PackageReference Include="Dinah.Core" Version="10.0.0.1" />
+    <PackageReference Include="Dinah.EntityFrameworkCore" Version="10.0.0.1" />
+	<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
   </ItemGroup>
+  
+  <ItemGroup>
+    <None Update="migrate.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
 		<DebugType>embedded</DebugType>
@@ -30,11 +37,5 @@
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
 		<DebugType>embedded</DebugType>
 	</PropertyGroup>
-  
-  <ItemGroup>
-    <None Update="migrate.json">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
-  </ItemGroup>
 
 </Project>

Source/DataLayer/EfClasses/Book.cs

@@ -73,7 +73,8 @@ namespace DataLayer
             ContentType contentType,
             IEnumerable<Contributor> authors,
             IEnumerable<Contributor> narrators,
-            string localeName)
+            string localeName
+            )
         {
             // validate
             ArgumentValidator.EnsureNotNull(audibleProductId, nameof(audibleProductId));

Source/DataLayer/EfClasses/Contributor.cs

@@ -45,5 +45,7 @@ namespace DataLayer
 		public override string ToString() => Name;
 		public void SetAudibleContributorId(string audibleContributorId)
 			=> AudibleContributorId = audibleContributorId;
-	}
+
+        public bool IsEmpty => ContributorId == -1;
+    }
 }

Source/DataLayer/EfClasses/LibraryBook.cs

@@ -13,7 +13,8 @@ namespace DataLayer
 
         public bool IsDeleted { get; set; }
         public bool AbsentFromLastScan { get; set; }
-
+        
+        public DateTime? IncludedUntil { get; private set; }
         private LibraryBook() { }
         public LibraryBook(Book book, DateTime dateAdded, string account)
         {
@@ -26,7 +27,7 @@ namespace DataLayer
         }
 
         public void SetAccount(string account) => Account = account;
-
-		public override string ToString() => $"{DateAdded:d} {Book}";
-	}
-}
+        public void SetIncludedUntil(DateTime? includedUntil) => IncludedUntil = includedUntil;
+        public override string ToString() => $"{DateAdded:d} {Book}";
+    }
+}

Source/DataLayer/EntityExtensions.cs

@@ -13,69 +13,74 @@ namespace DataLayer
 				.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));
+		extension(Book book)
+		{
+			public string SeriesSortable() => Formatters.GetSortName(book.SeriesNames(true));
+			public string TitleSortable() => Formatters.GetSortName(book.Title + book.Subtitle);
 
-        /// <summary>True if IsLiberated or Error. False if NotLiberated</summary>
-        public static bool Audio_Exists(this Book book) => book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated;
-        /// <summary>True if exists and IsLiberated. Else false</summary>
-        public static bool PDF_Exists(this Book book) => book.UserDefinedItem.PdfStatus == LiberatedStatus.Liberated;
+			public string AuthorNames => string.Join(", ", book.Authors.Select(a => a.Name));
+			public string NarratorNames => string.Join(", ", book.Narrators.Select(n => n.Name));
+			/// <summary>True if IsLiberated or Error. False if NotLiberated</summary>
+			public bool AudioExists => book.UserDefinedItem.BookStatus is LiberatedStatus.Liberated or LiberatedStatus.Error;
+			/// <summary>True if exists and IsLiberated. Else false</summary>
+			public bool PdfExists => book.UserDefinedItem.PdfStatus == LiberatedStatus.NotLiberated;
+			/// <summary> Whether the book has any supplements </summary>
+			public bool HasPdf => book.Supplements.Any();
 
-        public static string SeriesSortable(this Book book) => Formatters.GetSortName(book.SeriesNames(true));
-		public static bool HasPdf(this Book book) => book.Supplements.Any();
-        public static string SeriesNames(this Book book, bool includeIndex = false)
-        {
-            if (book.SeriesLink is null)
-                return "";
+			public string SeriesNames(bool includeIndex = false)
+			{
+				if (book.SeriesLink is null)
+					return "";
 
-            // first: alphabetical by name
-            var withNames = book.SeriesLink
-                .Where(s => !string.IsNullOrWhiteSpace(s.Series.Name))
-                .Select(getSeriesNameString)
-                .OrderBy(a => a)
-                .ToList();
-            // then un-named are alpha by series id
-            var nullNames = book.SeriesLink
-                .Where(s => string.IsNullOrWhiteSpace(s.Series.Name))
-                .Select(s => s.Series.AudibleSeriesId)
-                .OrderBy(a => a)
-                .ToList();
+				// first: alphabetical by name
+				var withNames = book.SeriesLink
+					.Where(s => !string.IsNullOrWhiteSpace(s.Series.Name))
+					.Select(getSeriesNameString)
+					.OrderBy(a => a)
+					.ToList();
+				// then un-named are alpha by series id
+				var nullNames = book.SeriesLink
+					.Where(s => string.IsNullOrWhiteSpace(s.Series.Name))
+					.Select(s => s.Series.AudibleSeriesId)
+					.OrderBy(a => a)
+					.ToList();
 
-            var all = withNames.Union(nullNames).ToList();
-            return string.Join(", ", all);
+				var all = withNames.Union(nullNames).ToList();
+				return string.Join(", ", all);
 
-            string getSeriesNameString(SeriesBook sb)
-                => includeIndex && !string.IsNullOrWhiteSpace(sb.Order) && sb.Order != "-1"
-                ? $"{sb.Series.Name} (#{sb.Order})"
-                : sb.Series.Name;
+				string getSeriesNameString(SeriesBook sb)
+					=> includeIndex && !string.IsNullOrWhiteSpace(sb.Order) && sb.Order != "-1"
+					? $"{sb.Series.Name} (#{sb.Order})"
+					: sb.Series.Name;
+			}
+
+			public string[] LowestCategoryNames()
+				=> book.CategoriesLink?.Any() is not true ? Array.Empty<string>()
+				: book
+					.CategoriesLink
+					.Select(cl => cl.CategoryLadder.Categories.LastOrDefault()?.Name)
+					.Where(c => c is not null)
+					.Distinct()
+					.ToArray();
+
+			public string[] AllCategoryNames()
+				=> book.CategoriesLink?.Any() is not true ? Array.Empty<string>()
+				: book
+					.CategoriesLink
+					.SelectMany(cl => cl.CategoryLadder.Categories)
+					.Select(c => c.Name)
+					.ToArray();
+
+			public string[] AllCategoryIds()
+				=> book.CategoriesLink?.Any() is not true ? null
+				: book
+					.CategoriesLink
+					.SelectMany(cl => cl.CategoryLadder.Categories)
+					.Select(c => c.AudibleCategoryId)
+					.ToArray();
 		}
 
-        public static string[] LowestCategoryNames(this Book book)
-            => book.CategoriesLink?.Any() is not true ? Array.Empty<string>()
-			: book
-                .CategoriesLink
-                .Select(cl => cl.CategoryLadder.Categories.LastOrDefault()?.Name)
-                .Where(c => c is not null)
-                .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)
 		{
@@ -93,7 +98,7 @@ namespace DataLayer
 			return titlesAgg;
 		}
 
-        public static float FirstScore(this Rating rating)
+		public static float FirstScore(this Rating rating)
             => rating.OverallRating > 0 ? rating.OverallRating
             : rating.PerformanceRating > 0 ? rating.PerformanceRating
             : rating.StoryRating;

Source/DataLayer/InstanceQueue.cs

@@ -0,0 +1,103 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+
+#nullable enable
+namespace DataLayer;
+
+/// <summary> Notifies clients that the object is being disposed. </summary>
+public interface INotifyDisposed : IDisposable
+{
+	/// <summary> Event raised when the object is disposed. </summary>
+	event EventHandler? ObjectDisposed;	
+}
+
+/// <summary> Creates a single instance of <typeparamref name="TDisposable"/> at a time, blocking subsequent creations until the previous creations are disposed. </summary>
+public static class InstanceQueue<TDisposable> where TDisposable : INotifyDisposed
+{
+	/// <summary> Synchronization object for access to <see cref="LastInLine"/>"/> </summary>
+	private static Lock Locker { get; } = new();
+	/// <summary> Ticket holder for the last instance creator in line. </summary>
+	private static Ticket? LastInLine { get; set; }
+
+	/// <summary> Waits for all previously created instances of <typeparamref name="TDisposable"/> to be disposed, then creates and returns a new instance of <typeparamref name="TDisposable"/> using the provided <paramref name="creator"/> factory. </summary>
+	public static TDisposable WaitToCreateInstance(Func<TDisposable> creator)
+	{
+		Ticket ticket;
+		lock (Locker)
+		{
+			ticket = LastInLine = new Ticket(creator, LastInLine);
+		}
+
+		return ticket.Fulfill();
+	}
+
+	/// <summary> A queue ticket for an instance creator. </summary>
+	/// <param name="creator">Factory to create a new instance of <typeparamref name="TDisposable"/></param>
+	/// <param name="inFront">The ticket immediately in preceding this new ticket. This new ticket must wait for <paramref name="inFront"/> to signal its instance has been disposed before creating a new instance of <typeparamref name="TDisposable"/></param>
+	private class Ticket(Func<TDisposable> creator, Ticket? inFront) : IDisposable
+	{
+		/// <summary> Factory to create a new instance of <typeparamref name="TDisposable"/> </summary>
+		private Func<TDisposable> Creator { get; } = creator;
+		/// <summary> Ticket immediately in front of this one. This instance must wait for <see cref="InFront"/> to signal its instance has been disposed before creating a new instance of <typeparamref name="TDisposable"/></summary>
+		private Ticket? InFront { get; } = inFront;
+		/// <summary> Wait handle to signal when this ticket's created instance is disposed </summary>
+		private EventWaitHandle WaitHandle { get; } = new(false, EventResetMode.ManualReset);
+		/// <summary> This ticket's created instance of <typeparamref name="TDisposable"/> </summary>
+		private TDisposable? CreatedInstance { get; set; }
+
+		/// <summary> Disposes of this ticket and every ticket queued in front of it. </summary>
+		public void Dispose()
+		{
+			WaitHandle.Dispose();
+			InFront?.Dispose();
+		}
+
+		/// <summary>
+		/// Waits for the <see cref="InFront"/> ticket's instance to be disposed, then creates and returns a new instance of <typeparamref name="TDisposable"/> using the <see cref="Creator"/> factory.
+		/// </summary>
+		public TDisposable Fulfill()
+		{
+#if DEBUG
+			var sw = Stopwatch.StartNew();
+#endif
+			//Wait for the previous ticket's instance to be disposed, then dispose of the previous ticket.
+			InFront?.WaitHandle.WaitOne(Timeout.Infinite);
+			InFront?.Dispose();
+#if DEBUG
+			sw.Stop();
+			Debug.WriteLine($"Waited {sw.ElapsedMilliseconds}ms to create instance of {typeof(TDisposable).Name}");
+#endif
+			CreatedInstance = Creator();
+			CreatedInstance.ObjectDisposed += CreatedInstance_ObjectDisposed;
+			return CreatedInstance;
+		}
+
+		private void CreatedInstance_ObjectDisposed(object? sender, EventArgs e)
+		{
+			Debug.WriteLine($"{typeof(TDisposable).Name} Disposed");
+			if (CreatedInstance is not null)
+			{
+				CreatedInstance.ObjectDisposed -= CreatedInstance_ObjectDisposed;
+				CreatedInstance = default;
+			}
+
+			lock (Locker)
+			{
+				if (this == LastInLine)
+				{
+					//There are no ticket holders waiting after this one.
+					//This ticket is fulfilled and will never be waited on.
+					LastInLine = null;
+					Dispose();
+				}
+				else
+				{
+					//Signal the that this ticket has been fulfilled so that
+					//the next ticket in line may proceed.
+					WaitHandle.Set();
+				}
+			}
+		}
+	}
+}

Source/DataLayer/LibationContext.cs

@@ -1,9 +1,11 @@
 using DataLayer.Configurations;
 using Microsoft.EntityFrameworkCore;
+using System;
+using System.Threading.Tasks;
 
 namespace DataLayer
 {
-    public class LibationContext : DbContext
+    public class LibationContext : DbContext, INotifyDisposed
     {
         // IMPORTANT: USING DbSet<>
         // ========================
@@ -25,15 +27,20 @@ namespace DataLayer
         public DbSet<Category> Categories { get; private set; }
         public DbSet<CategoryLadder> CategoryLadders { get; private set; }
 
-        public static LibationContext Create(string connectionString)
+        public event EventHandler ObjectDisposed;
+        public override void Dispose()
         {
-            var factory = new LibationContextFactory();
-            var context = factory.Create(connectionString);
-            return context;
+            base.Dispose();
+            ObjectDisposed?.Invoke(this, EventArgs.Empty);
+        }
+        public override async ValueTask DisposeAsync()
+        {
+            await base.DisposeAsync();
+            ObjectDisposed?.Invoke(this, EventArgs.Empty);
         }
 
         // see DesignTimeDbContextFactoryBase for info about ctors and connection strings/OnConfiguring()
-        internal LibationContext(DbContextOptions options) : base(options) { }
+        public LibationContext(DbContextOptions options) : base(options) { }
 
         // typically only called once per execution; NOT once per instantiation
         protected override void OnModelCreating(ModelBuilder modelBuilder)

Source/DataLayer/LibationContextFactory.cs

@@ -1,14 +1,41 @@
-using Dinah.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Diagnostics;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Infrastructure;
+using System;
 
 namespace DataLayer
 {
-    public class LibationContextFactory : DesignTimeDbContextFactoryBase<LibationContext>
+    public class LibationContextFactory
     {
-        protected override LibationContext CreateNewInstance(DbContextOptions<LibationContext> options) => new LibationContext(options);
-        protected override void UseDatabaseEngine(DbContextOptionsBuilder optionsBuilder, string connectionString)
-            => optionsBuilder.ConfigureWarnings(w => w.Ignore(RelationalEventId.PendingModelChangesWarning))
-            .UseSqlite(connectionString, ob => ob.UseQuerySplittingBehavior(QuerySplittingBehavior.SplitQuery));
+        public static void ConfigureOptions(NpgsqlDbContextOptionsBuilder options)
+        {
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            options.MigrationsAssembly("DataLayer.Postgres");
+            options.UseQuerySplittingBehavior(QuerySplittingBehavior.SplitQuery);
+        }
+
+        public static LibationContext CreatePostgres(string connectionString)
+        {
+            var options = new DbContextOptionsBuilder<LibationContext>();
+
+            options.UseNpgsql(connectionString, ConfigureOptions);
+
+            return new LibationContext(options.Options);
+        }
+
+        public static LibationContext CreateSqlite(string connectionString)
+        {
+            var options = new DbContextOptionsBuilder<LibationContext>();
+
+            options
+                .ConfigureWarnings(w => w.Ignore(RelationalEventId.PendingModelChangesWarning))
+                .UseSqlite(connectionString, options =>
+                {
+                    options.MigrationsAssembly("DataLayer.Sqlite");
+                    options.UseQuerySplittingBehavior(QuerySplittingBehavior.SplitQuery);
+                });
+
+            return new LibationContext(options.Options);
+        }
     }
 }

Source/DataLayer/MockLibraryBook.cs

@@ -0,0 +1,116 @@
+using System;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+
+#nullable enable
+namespace DataLayer;
+public class MockLibraryBook : LibraryBook
+{
+	protected MockLibraryBook(Book book, DateTime dateAdded, string account, DateTime? includedUntil)
+		: base(book, dateAdded, account)
+	{
+		SetIncludedUntil(includedUntil);
+	}
+
+	public MockLibraryBook AddSeries(string seriesName, int order)
+	{
+		var series = new Series(new AudibleSeriesId(CalculateAsin(seriesName)), seriesName);
+		Book.UpsertSeries(series, order.ToString());
+		return this;
+	}
+
+	public MockLibraryBook AddCategoryLadder(params string[] ladder)
+	{
+		var newLadder = new CategoryLadder(ladder.Select(c => new Category(new AudibleCategoryId(CalculateAsin(c)), c)).ToList());
+		Book.SetCategoryLadders(Book.Categories.Select(c => c.CategoryLadder).Append(newLadder));
+		return this;
+	}
+
+	public MockLibraryBook AddNarrator(string name)
+	{
+		var newNarrator = new Contributor(name, CalculateAsin(name));
+		Book.ReplaceNarrators(Book.Narrators.Append(newNarrator));
+		return this;
+	}
+
+	public MockLibraryBook AddAuthor(string name)
+	{
+		var newAuthor = new Contributor(name, CalculateAsin(name));
+		Book.ReplaceAuthors(Book.Authors.Append(newAuthor));
+		return this;
+	}
+
+	public MockLibraryBook WithBookStatus(LiberatedStatus liberatedStatus)
+	{
+		//Set the backing field directly to preserve LiberatedStatus.PartialDownload
+		typeof(UserDefinedItem)
+			.GetField("_bookStatus", BindingFlags.NonPublic | BindingFlags.Instance)
+			?.SetValue(Book.UserDefinedItem, liberatedStatus);
+		return this;
+	}
+
+	public MockLibraryBook WithPdfStatus(LiberatedStatus liberatedStatus)
+	{
+		Book.UserDefinedItem.PdfStatus = liberatedStatus;
+		return this;
+	}
+
+	public MockLibraryBook WithLastDownloaded(Version? lastVersion = null, AudioFormat? format = null, string audioVersion = "1")
+	{
+		lastVersion ??= new Version(10, 0, 0, 0);
+		format ??= AudioFormat.Default;
+		Book.UserDefinedItem.SetLastDownloaded(lastVersion, format, audioVersion);
+		return this;
+	}
+
+	public MockLibraryBook WithMyRating(float overallRating = 4, float performanceRating = 4.5f, float storyRating = 5)
+	{
+		Book.UserDefinedItem.UpdateRating(overallRating, performanceRating, storyRating);
+		return this;
+	}
+
+	public static MockLibraryBook CreateBook(
+		string account = "someone@email.co",
+		bool absetFromLastScan = false,
+		DateTime? dateAdded = null,
+		DateTime? datePublished = null,
+		DateTime? includedUntil = null,
+		string title = "Mock Book Title",
+		string subtitle = "Mock Book Subtitle",
+		string description = "This is a mock book description.",
+		int lengthInMinutes = 1400,
+		ContentType contentType = ContentType.Product,
+		string firstAuthor = "Author One",
+		string firstNarrator = "Narrator One",
+		string localeName = "us",
+		bool isAbridged = false,
+		bool isSpatial = false,
+		string language = "English")
+	{
+		var book = new Book(
+			new AudibleProductId(CalculateAsin(title + subtitle)),
+			title,
+			subtitle,
+			description,
+			lengthInMinutes,
+			contentType,
+			[new Contributor(firstAuthor, CalculateAsin(firstAuthor))],
+			[new Contributor(firstNarrator, CalculateAsin(firstNarrator))],
+			localeName);
+
+		book.UpdateBookDetails(isAbridged, isSpatial, datePublished ?? DateTime.Now, language);
+
+		return new MockLibraryBook(
+			book,
+			dateAdded ?? DateTime.Now,
+			account,
+			includedUntil)
+		{
+			AbsentFromLastScan = absetFromLastScan
+		};
+	}
+
+	private static string CalculateAsin(string name) 
+		=> Convert.ToHexString(System.Security.Cryptography.MD5.HashData(Encoding.UTF8.GetBytes(name))).Substring(0, 10);
+}

Source/DataLayer/QueryObjects/LibraryBookQueries.cs

@@ -25,16 +25,17 @@ namespace DataLayer
 				.Where(c => !c.Book.IsEpisodeParent() || includeParents)
 				.ToList();
 
-        public static LibraryBook? GetLibraryBook_Flat_NoTracking(this LibationContext context, string productId)
-            => context
+        public static LibraryBook? GetLibraryBook_Flat_NoTracking(this LibationContext context, string productId, bool caseSensative = true)
+        {
+            var libraryQuery
+                = context
                 .LibraryBooks
                 .AsNoTrackingWithIdentityResolution()
-                .GetLibraryBook(productId);
+                .GetLibrary();
 
-        public static LibraryBook? GetLibraryBook(this IQueryable<LibraryBook> library, string productId)
-            => library
-                .GetLibrary()
-                .SingleOrDefault(lb => lb.Book.AudibleProductId == productId);
+            return caseSensative ? libraryQuery.SingleOrDefault(lb => lb.Book.AudibleProductId == productId)
+                : libraryQuery.SingleOrDefault(lb => EF.Functions.Collate(lb.Book.AudibleProductId, "NOCASE") == productId);
+		}
 
         /// <summary>This is still IQueryable. YOU MUST CALL ToList() YOURSELF</summary>
         public static IQueryable<LibraryBook> GetLibrary(this IQueryable<LibraryBook> library)

Source/DtoImporterService/BookImporter.cs

@@ -48,9 +48,21 @@ namespace DtoImporterService
 				.Distinct()
 				.ToHashSet();
 
-			Cache = DbContext.Books
-				.GetBooks(b => productIds.Contains(b.AudibleProductId))
-				.ToDictionarySafe(b => b.AudibleProductId);
+			if (productIds.Count > 100)
+			{
+				//For large imports, it is faster to get the whole library and filter in memory.
+				Cache = DbContext.Books
+					.GetBooks()
+					.ToArray()
+					.Where(b => productIds.Contains(b.AudibleProductId))
+					.ToDictionarySafe(b => b.AudibleProductId);
+			}
+			else
+			{
+				Cache = DbContext.Books
+					.GetBooks(b => productIds.Contains(b.AudibleProductId))
+					.ToDictionarySafe(b => b.AudibleProductId);
+			}
 		}
 
 		private int upsertBooks(IEnumerable<ImportItem> importItems)
@@ -111,7 +123,8 @@ namespace DtoImporterService
 					contentType,
 					authors,
 					narrators,
-					importItem.LocaleName)
+					importItem.LocaleName
+					)
 					).Entity;
 				Cache.Add(book.AudibleProductId, book);
 			}

Source/DtoImporterService/DtoImporterService.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">

Source/DtoImporterService/LibraryBookImporter.cs

@@ -8,121 +8,136 @@ using Dinah.Core.Collections.Generic;
 
 namespace DtoImporterService
 {
-	public class LibraryBookImporter : ItemsImporterBase
-	{
-		protected override IValidator Validator => new LibraryValidator();
+    public class LibraryBookImporter : ItemsImporterBase
+    {
+  	  protected override IValidator Validator => new LibraryValidator();
 
-		private BookImporter bookImporter { get; }
+  	  private BookImporter bookImporter { get; }
 
-		public LibraryBookImporter(LibationContext context) : base(context)
-		{
-			bookImporter = new BookImporter(DbContext);
-		}
+  	  public LibraryBookImporter(LibationContext context) : base(context)
+  	  {
+  		  bookImporter = new BookImporter(DbContext);
+  	  }
 
-		protected override int DoImport(IEnumerable<ImportItem> importItems)
-		{
-			bookImporter.Import(importItems);
+  	  protected override int DoImport(IEnumerable<ImportItem> importItems)
+  	  {
+  		  bookImporter.Import(importItems);
 
-			var qtyNew = upsertLibraryBooks(importItems);
-			return qtyNew;
-		}
+  		  var qtyNew = upsertLibraryBooks(importItems);
+  		  return qtyNew;
+  	  }
 
-		private int upsertLibraryBooks(IEnumerable<ImportItem> importItems)
-		{
-			// technically, we should be able to have duplicate books from separate accounts.
-			// this would violate the current pk and would be difficult to deal with elsewhere:
-			// - what to show in the grid
-			// - which to consider liberated
-			//
-			// sqlite cannot alter pk. the work around is an extensive headache
-			// - update: now possible in .net5/efcore5
-			//
-			// currently, inserting LibraryBook will throw error if the same book is in multiple accounts for the same region.
-			//
-			// CURRENT SOLUTION: don't re-insert
+  	  private int upsertLibraryBooks(IEnumerable<ImportItem> importItems)
+  	  {
+  		  // technically, we should be able to have duplicate books from separate accounts.
+  		  // this would violate the current pk and would be difficult to deal with elsewhere:
+  		  // - what to show in the grid
+  		  // - which to consider liberated
+  		  //
+  		  // sqlite cannot alter pk. the work around is an extensive headache
+  		  // - update: now possible in .net5/efcore5
+  		  //
+  		  // currently, inserting LibraryBook will throw error if the same book is in multiple accounts for the same region.
+  		  //
+  		  // CURRENT SOLUTION: don't re-insert
 
 
-			//When Books are upserted during the BookImporter run, they are linked to their LibraryBook in the DbContext
-			//instance. If a LibraryBook has a null book here, that means it's Book was not imported during by BookImporter.
-			//There should never be duplicates, but this is defensive.
-			var existingEntries = DbContext.LibraryBooks.AsEnumerable().Where(l => l.Book is not null).ToDictionarySafe(l => l.Book.AudibleProductId);
+  		  //When Books are upserted during the BookImporter run, they are linked to their LibraryBook in the DbContext
+  		  //instance. If a LibraryBook has a null book here, that means it's Book was not imported during by BookImporter.
+  		  //There should never be duplicates, but this is defensive.
+  		  var existingEntries = DbContext.LibraryBooks.AsEnumerable().Where(l => l.Book is not null).ToDictionarySafe(l => l.Book.AudibleProductId);
 
-			//If importItems are contains duplicates by asin, keep the Item that's "available"
-			var uniqueImportItems = ToDictionarySafe(importItems, dto => dto.DtoItem.ProductId, tieBreak);
+  		  //If importItems are contains duplicates by asin, keep the Item that's "available"
+  		  var uniqueImportItems = ToDictionarySafe(importItems, dto => dto.DtoItem.ProductId, tieBreak);
 
-			int qtyNew = 0;
+  		  int qtyNew = 0;			
 
-			foreach (var item in uniqueImportItems.Values)
-			{
-				if (existingEntries.TryGetValue(item.DtoItem.ProductId, out LibraryBook existing))
-				{
-					if (existing.Account != item.AccountId)
-					{
-						//Book is absent from the existing LibraryBook's account. Use the alternate account.
-						existing.SetAccount(item.AccountId);
-					}
+  		  foreach (var item in uniqueImportItems.Values)
+  		  {
+  			  if (existingEntries.TryGetValue(item.DtoItem.ProductId, out LibraryBook existing))
+  			  {
+  				  if (existing.Account != item.AccountId)
+  				  {
+  					  //Book is absent from the existing LibraryBook's account. Use the alternate account.
+  					  existing.SetAccount(item.AccountId);
+  				  }
 
-					existing.AbsentFromLastScan = isUnavailable(item);
-				}
-				else
-				{
-					var libraryBook = new LibraryBook(
-						bookImporter.Cache[item.DtoItem.ProductId],
-						item.DtoItem.DateAdded,
-						item.AccountId)
-						{
-							AbsentFromLastScan = isUnavailable(item)
-						};
+  				  existing.AbsentFromLastScan = isUnavailable(item);
+  			  }
+  			  else
+  			  {
+  				  existing = new LibraryBook(
+  					  bookImporter.Cache[item.DtoItem.ProductId],
+  					  item.DtoItem.DateAdded,
+  					  item.AccountId)
+  					  {
+  						  AbsentFromLastScan = isUnavailable(item)
+  					  };
 
-					try
-					{
-						DbContext.LibraryBooks.Add(libraryBook);
-						qtyNew++;
-					}
-					catch (Exception ex)
-					{
-						Serilog.Log.Logger.Error(ex, "Error adding library book. {@DebugInfo}", new { libraryBook.Book, libraryBook.Account });
-					}
-				}
-			}
+  				  try
+  				  {
+  					  DbContext.LibraryBooks.Add(existing);
+  					  qtyNew++;
+  				  }
+  				  catch (Exception ex)
+  				  {
+  					  Serilog.Log.Logger.Error(ex, "Error adding library book. {@DebugInfo}", new { existing.Book, existing.Account });
+  				  }
+  			  }
+  			  
+  			  existing.SetIncludedUntil(GetExpirationDate(item));
+  		  }
 
-			var scannedAccounts = importItems.Select(i => i.AccountId).Distinct().ToList();
+  		  var scannedAccounts = importItems.Select(i => i.AccountId).Distinct().ToList();
 
-			//If an existing Book wasn't found in the import, the owning LibraryBook's Book will be null.
-			//Only change AbsentFromLastScan for LibraryBooks of accounts that were scanned.
-			foreach (var nullBook in DbContext.LibraryBooks.AsEnumerable().Where(lb => lb.Book is null && lb.Account.In(scannedAccounts)))
-				nullBook.AbsentFromLastScan = true;
+  		  //If an existing Book wasn't found in the import, the owning LibraryBook's Book will be null.
+  		  //Only change AbsentFromLastScan for LibraryBooks of accounts that were scanned.
+  		  foreach (var nullBook in DbContext.LibraryBooks.AsEnumerable().Where(lb => lb.Book is null && lb.Account.In(scannedAccounts)))
+  			  nullBook.AbsentFromLastScan = true;
 
-			return qtyNew;
-		}		
+  		  return qtyNew;
+  	  }		
 
-		private static Dictionary<TKey, TSource> ToDictionarySafe<TKey, TSource>(IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TSource, TSource> tieBreaker)
-		{
-			var dictionary = new Dictionary<TKey, TSource>();
+  	  private static Dictionary<TKey, TSource> ToDictionarySafe<TKey, TSource>(IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TSource, TSource> tieBreaker)
+  	  {
+  		  var dictionary = new Dictionary<TKey, TSource>();
 
-			foreach (TSource newItem in source)
-			{
-				TKey key = keySelector(newItem);
+  		  foreach (TSource newItem in source)
+  		  {
+  			  TKey key = keySelector(newItem);
 
-				dictionary[key]
-					= dictionary.TryGetValue(key, out TSource existingItem)
-					? tieBreaker(existingItem, newItem)
-					: newItem;
-			}
-			return dictionary;
-		}
+  			  dictionary[key]
+  				  = dictionary.TryGetValue(key, out TSource existingItem)
+  				  ? tieBreaker(existingItem, newItem)
+  				  : newItem;
+  		  }
+  		  return dictionary;
+  	  }
 
-		private static ImportItem tieBreak(ImportItem item1, ImportItem item2)
-			=> isUnavailable(item1) && !isUnavailable(item2) ? item2 : item1;
+  	  private static ImportItem tieBreak(ImportItem item1, ImportItem item2)
+  		  => isUnavailable(item1) && !isUnavailable(item2) ? item2 : item1;
 
-		private static bool isUnavailable(ImportItem item)
-			=> isFutureRelease(item) || isPlusTitleUnavailable(item);
+  	  private static bool isUnavailable(ImportItem item)
+  		  => isFutureRelease(item) || isPlusTitleUnavailable(item);
 
         private static bool isFutureRelease(ImportItem item)
-			=> item.DtoItem.IssueDate is DateTimeOffset dt && dt > DateTimeOffset.UtcNow;
+  		  => item.DtoItem.IssueDate is DateTimeOffset dt && dt > DateTimeOffset.UtcNow;
 
-		private static bool isPlusTitleUnavailable(ImportItem item)
-			=> item.DtoItem.ContentType is null
-			|| (item.DtoItem.IsAyce is true && item.DtoItem.Plans?.Any(p => p.IsAyce) is not true);
-	}
-}
+  	  private static bool isPlusTitleUnavailable(ImportItem item)
+  		  => item.DtoItem.ContentType is null
+  		  || (item.DtoItem.IsAyce is true && item.DtoItem.Plans?.Any(p => p.IsAyce) is not true);
+
+  	  /// <summary>
+  	  /// Determines when your audible plus or free book will expire from your library  
+  	  /// plan.IsAyce from underlying AudibleApi project determines the plans to look at, first plan found is used.
+  	  /// In some cases current date is later than end date so exclude.
+  	  /// </summary>
+  	  /// <returns>The DateTime that this title will become unavailable, otherwise null</returns>
+  	  private static DateTime? GetExpirationDate(ImportItem item)
+  		  => item.DtoItem.Plans
+  		  ?.Where(p => p.IsAyce)
+  		  .Select(p => p.EndDate)
+  		  .FirstOrDefault(end => end.HasValue && end.Value.Year is not (2099 or 9999) && end.Value.LocalDateTime >= DateTime.Now) 
+  		  ?.DateTime;
+    }
+}

Source/FileLiberator/AudioFileStorageExt.cs

@@ -23,9 +23,7 @@ namespace FileLiberator
 				var series = libraryBook.Book.SeriesLink.SingleOrDefault();
 				if (series is not null)
 				{
-					using var context = ApplicationServices.DbContexts.GetContext();
-					var seriesParent = context.GetLibraryBook_Flat_NoTracking(series.Series.AudibleSeriesId);
-
+					LibraryBook seriesParent = ApplicationServices.DbContexts.GetLibraryBook_Flat_NoTracking(series.Series.AudibleSeriesId);					
 					if (seriesParent is not null)
 					{
 						return Templates.Folder.GetFilename(seriesParent.ToDto(), AudibleFileStorage.BooksDirectory, "");