Bug fix #532 : Possible rull ref exception for pre-amazon germany

Bug fixes and performance improvements

.github/workflows/build-linux.yml

@@ -23,10 +23,10 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [Linux, MacOS]
+        os: [ubuntu-latest, macos-latest]
         arch: [x64, arm64]
     steps:
       - uses: actions/checkout@v3
@@ -45,62 +45,63 @@ jobs:
           then
             version="${inputVersion}"
           else
-            version="$(grep -oP '(?<=<Version>).*(?=</Version)' ./Source/AppScaffolding/AppScaffolding.csproj)"
+            version="$(grep -Eio -m 1 '<Version>.*</Version>' ./Source/AppScaffolding/AppScaffolding.csproj | sed -r 's/<\/?Version>//g')"
           fi
           echo "version=${version}" >> "${GITHUB_OUTPUT}"
-
       - name: Unit test
         if: ${{ inputs.run_unit_tests }}
         working-directory: ./Source
         run: dotnet test
 
       - name: Publish
+        id: publish
         working-directory: ./Source
         run: |
           os=${{ matrix.os }}
-          RUNTIME_IDENTIFIER="$(echo ${os,} | sed 's/macOS/osx/')-${{ matrix.arch }}"
+          target_os="$(echo ${os/-latest/} | sed 's/ubuntu/linux/')"
+          display_os="$(echo ${target_os/macos/macOS} | sed 's/linux/Linux/')"
+          echo "display_os=${display_os}" >> $GITHUB_OUTPUT
+          RUNTIME_IDENTIFIER="$(echo ${target_os/macos/osx})-${{ matrix.arch }}"
           echo "$RUNTIME_IDENTIFIER"
           dotnet publish \
               LibationAvalonia/LibationAvalonia.csproj \
               --runtime "$RUNTIME_IDENTIFIER" \
               --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output bin/Publish/${{ matrix.os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
-              -p:PublishProfile=LibationAvalonia/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
+              --output bin/Publish/${display_os}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
+              -p:PublishProfile=LibationAvalonia/Properties/PublishProfiles/${display_os}Profile.pubxml
           dotnet publish \
-              LoadByOS/${{ matrix.os }}ConfigApp/${{ matrix.os }}ConfigApp.csproj \
+              LoadByOS/${display_os}ConfigApp/${display_os}ConfigApp.csproj \
               --runtime "$RUNTIME_IDENTIFIER" \
               --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output bin/Publish/${{ matrix.os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
-              -p:PublishProfile=LoadByOS/Properties/${{ matrix.os }}ConfigApp/PublishProfiles/${{ matrix.os }}Profile.pubxml
+              --output bin/Publish/${display_os}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
+              -p:PublishProfile=LoadByOS/Properties/${display_os}ConfigApp/PublishProfiles/${display_os}Profile.pubxml
           dotnet publish \
               LibationCli/LibationCli.csproj \
               --runtime "$RUNTIME_IDENTIFIER" \
               --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output bin/Publish/${{ matrix.os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
-              -p:PublishProfile=LibationCli/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
+              --output bin/Publish/${display_os}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
+              -p:PublishProfile=LibationCli/Properties/PublishProfiles/${display_os}Profile.pubxml
           dotnet publish \
               HangoverAvalonia/HangoverAvalonia.csproj \
               --runtime "$RUNTIME_IDENTIFIER" \
               --configuration ${{ env.DOTNET_CONFIGURATION }} \
-              --output bin/Publish/${{ matrix.os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
-              -p:PublishProfile=HangoverAvalonia/Properties/PublishProfiles/${{ matrix.os }}Profile.pubxml
-          
+              --output bin/Publish/${display_os}-${{ matrix.arch }}-${{ env.RELEASE_NAME }} \
+              -p:PublishProfile=HangoverAvalonia/Properties/PublishProfiles/${display_os}Profile.pubxml
       - name: Build bundle
         id: bundle
-        working-directory: ./Source/bin/Publish/${{ matrix.os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }}
+        working-directory: ./Source/bin/Publish/${{ steps.publish.outputs.display_os }}-${{ matrix.arch }}-${{ env.RELEASE_NAME }}
         run: |
           BUNDLE_DIR=$(pwd)
           echo "Bundle dir: ${BUNDLE_DIR}"
           cd ..
-          SCRIPT=../../../Scripts/Bundle_${{ matrix.os }}.sh
+          SCRIPT=../../../Scripts/Bundle_${{ steps.publish.outputs.display_os }}.sh
           chmod +rx ${SCRIPT}
           ${SCRIPT} "${BUNDLE_DIR}" "${{ steps.get_version.outputs.version }}" "${{ matrix.arch }}"
           artifact=$(ls ./bundle)
           echo "artifact=${artifact}" >> "${GITHUB_OUTPUT}"
-          
       - name: Publish bundle
         uses: actions/upload-artifact@v3
         with:
           name: ${{ steps.bundle.outputs.artifact }}
           path: ./Source/bin/Publish/bundle/${{ steps.bundle.outputs.artifact }}
-          if-no-files-found: error
+          if-no-files-found: error

.vscode/launch.json

@@ -0,0 +1,21 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+
+        {
+            "name": ".NET Core Launch (console)",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build",
+            "program": "${workspaceFolder}/Source/bin/Avalonia/Debug/Libation.dll",
+            "args": [],
+            "cwd": "${workspaceFolder}",
+            "stopAtEntry": false,
+            "console": "internalConsole"
+        }
+
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,42 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "build",
+            "dependsOn": [
+                "build_libation",
+                "build_linuxconfigapp"
+            ]
+        },
+        {
+            "label": "build_libation",
+            "type": "shell",
+            "command": "dotnet",
+            "args": [
+                "build",
+                "${workspaceFolder}/Source/LibationAvalonia/LibationAvalonia.csproj"
+            ],
+            "group": "build",
+            "presentation": {
+                //"reveal": "silent"
+            },
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "build_linuxconfigapp",
+            "type": "shell",
+            "command": "dotnet",
+            "args": [
+                "build",
+                "${workspaceFolder}/Source/LoadByOS/LinuxConfigApp/LinuxConfigApp.csproj"
+            ],
+            "group": "build",
+            "presentation": {
+                //"reveal": "silent"
+            },
+            "problemMatcher": "$msCompile"
+        }
+    ]
+}

Documentation/Advanced.md

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

Documentation/Docker.md

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

Documentation/GettingStarted.md

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

Documentation/InstallOnLinux.md

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

Documentation/InstallOnMac.md

@@ -1,6 +1,6 @@
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PalPal.me](https://paypal.me/mcrackan?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 
@@ -9,13 +9,16 @@ This walkthrough should get you up and running with Libation on your Mac.
 
 ## Install Libation
 
-- Download the `Libation.app-macOS-x64-x.x.x.tgz` file from the latest release and extract it. 
+- Download the file from the latest release and extract it.
+  - Apple Silicon (M1, M2, ...): `Libation.9.4.2-macOS-chardonnay-`**arm64**`.tgz`
+  - Intel: `Libation.x.x.x-macOS-chardonnay-`**x64**`.tgz`
 - Move the extracted Libation app bundle to your applications folder.
 - Open a terminal (Go > Utilities > Terminal)
 - Copy/paste/run the following command (you'll be prompted to enter your password)
+  
   ```Console
   sudo spctl --master-disable && sudo spctl --add --label "Libation" /Applications/Libation.app && open /Applications/Libation.app && sudo spctl --master-enable
-  ```
+  ```  
 - Close the terminal and use Libation!
 
 ## Running Hangover

Documentation/SearchingAndFiltering.md

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

README.md

@@ -2,7 +2,7 @@
 
 ## [Download Libation](https://github.com/rmcrackan/Libation/releases/latest)
 
-### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PalPal.me](https://paypal.me/mcrackan?locale.x=en_us)
+### If you found this useful, tell a friend. If you found this REALLY useful, you can click here to [PayPal.me](https://paypal.me/mcrackan?locale.x=en_us)
 ...or just tell more friends. As long as I'm maintaining this software, it will remain **free** and **open source**.
 
 # Table of Contents

Scripts/Bundle_Linux.sh

@@ -88,38 +88,27 @@ cp $FOLDER_EXEC/Libation.desktop $FOLDER_DESKTOP/Libation.desktop
 
 echo "Creating pre-install file..."
 echo "#!/bin/bash
-
 # Pre-install script, removes previous installation program files and sym links
-
 echo \"Removing previously created symlinks...\"
-
 rm /usr/bin/libation
 rm /usr/bin/hangover
 rm /usr/bin/libationcli
-
 echo \"Removing previously installed Libation files...\"
-
 rm -r /usr/lib/libation
-
 # making sure it won't stop installation
 exit 0
 " >> $FOLDER_DEBIAN/preinst
 
 echo "Creating post-install file..."
 echo "#!/bin/bash
-
 gtk-update-icon-cache -f /usr/share/icons/hicolor/
-
 ln -s /usr/lib/libation/Libation /usr/bin/libation
 ln -s /usr/lib/libation/Hangover /usr/bin/hangover
 ln -s /usr/lib/libation/LibationCli /usr/bin/libationcli
-
 # Increase the maximum number of inotify instances
-
-if ! grep -q 'fs.inotify.max_user_instances=524288' /etc/sysctl.conf; then  
+if ! grep -q 'fs.inotify.max_user_instances=524288' /etc/sysctl.conf; then
   echo fs.inotify.max_user_instances=524288 | tee -a /etc/sysctl.conf && sysctl -p
 fi
-
 # workaround until this file is moved to the user's home directory
 touch /usr/lib/libation/appsettings.json
 chmod 666 /usr/lib/libation/appsettings.json
@@ -139,6 +128,11 @@ echo "Changing permissions for pre- and post-install files..."
 chmod +x "$FOLDER_DEBIAN/preinst"
 chmod +x "$FOLDER_DEBIAN/postinst"
 
+if [ "$(uname -s)" == "Darwin" ]; then
+  echo "macOS detected, installing dpkg"
+  brew install dpkg
+fi
+
 DEB_FILE=Libation.${VERSION}-linux-chardonnay-${ARCH}.deb
 echo "Creating $DEB_FILE"
 dpkg-deb -Zxz --build $DEB_DIR ./$DEB_FILE
@@ -149,4 +143,4 @@ mv $DEB_FILE ./bundle/$DEB_FILE
 
 rm -r "$BIN_DIR"
 
-echo "Done!"
+echo "Done!"

Scripts/Bundle_MacOS.sh

@@ -65,6 +65,9 @@ if [ $? -ne 0 ]
  exit
 fi
 
+echo "Make fileicon executable..."
+chmod +x $BUNDLE_MACOS/fileicon
+
 echo "Moving icon..."
 mv $BUNDLE_MACOS/libation.icns $BUNDLE_RESOURCES/libation.icns
 
@@ -96,6 +99,9 @@ done
 
 APP_FILE=Libation.${VERSION}-macOS-chardonnay-${ARCH}.tgz
 
+echo "Signing executables in: $BUNDLE"
+codesign --force --deep -s - $BUNDLE
+
 echo "Creating app bundle: $APP_FILE"
 tar -czvf $APP_FILE $BUNDLE
 
@@ -105,4 +111,4 @@ mv $APP_FILE ./bundle/$APP_FILE
 
 rm -r $BUNDLE
 
-echo "Done!"
+echo "Done!"

Source/AaxDecrypter/AaxDecrypter.csproj

@@ -13,7 +13,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="AAXClean.Codecs" Version="0.5.16" />
+	  <PackageReference Include="AAXClean.Codecs" Version="1.0.0" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/AaxDecrypter/AaxcDownloadConvertBase.cs

@@ -40,8 +40,14 @@ namespace AaxDecrypter
 				AaxFile.AppleTags.Album = AaxFile.AppleTags.Album?.Replace(" (Unabridged)", "");
 			}
 
-			if (DownloadOptions.FixupFile && !string.IsNullOrWhiteSpace(AaxFile.AppleTags.Narrator))
-				AaxFile.AppleTags.AppleListBox.EditOrAddTag("TCOM", AaxFile.AppleTags.Narrator);
+			if (DownloadOptions.FixupFile)
+			{
+				if (!string.IsNullOrWhiteSpace(AaxFile.AppleTags.Narrator))
+					AaxFile.AppleTags.AppleListBox.EditOrAddTag("TCOM", AaxFile.AppleTags.Narrator);
+
+				if (!string.IsNullOrWhiteSpace(AaxFile.AppleTags.Copyright))
+					AaxFile.AppleTags.Copyright = AaxFile.AppleTags.Copyright.Replace("(P)", "℗").Replace("©", "©");
+			}
 
 			//Finishing configuring lame encoder.
 			if (DownloadOptions.OutputFormat == OutputFormat.Mp3)

Source/AaxDecrypter/AaxcDownloadMultiConverter.cs

@@ -93,15 +93,13 @@ That naming may not be desirable for everyone, but it's an easy change to instea
 				? AaxFile.ConvertToMultiMp4aAsync
 				(
 					splitChapters,
-					newSplitCallback => newSplit(++chapterCount, splitChapters, newSplitCallback),
-					DownloadOptions.TrimOutputToChapterLength
+					newSplitCallback => newSplit(++chapterCount, splitChapters, newSplitCallback)
 				)
 				: AaxFile.ConvertToMultiMp3Async
 				(
 					splitChapters,
 					newSplitCallback => newSplit(++chapterCount, splitChapters, newSplitCallback),
-					DownloadOptions.LameConfig,
-					DownloadOptions.TrimOutputToChapterLength
+					DownloadOptions.LameConfig
 				);
 
 			void newSplit(int currentChapter, ChapterInfo splitChapters, NewSplitCallback newSplitCallback)

Source/AaxDecrypter/AaxcDownloadSingleConverter.cs

@@ -3,6 +3,7 @@ using AAXClean.Codecs;
 using Dinah.Core.Net.Http;
 using FileManager;
 using System;
+using System.Diagnostics;
 using System.IO;
 using System.Threading.Tasks;
 
@@ -14,12 +15,15 @@ namespace AaxDecrypter
 		public AaxcDownloadSingleConverter(string outFileName, string cacheDirectory, IDownloadOptions dlOptions)
 			: base(outFileName, cacheDirectory, dlOptions)
 		{
+			var step = 1;
 
 			AsyncSteps.Name = $"Download and Convert Aaxc To {DownloadOptions.OutputFormat}";
-			AsyncSteps["Step 1: Get Aaxc Metadata"] = () => Task.Run(Step_GetMetadata);
-			AsyncSteps["Step 2: Download Decrypted Audiobook"] = Step_DownloadAndDecryptAudiobookAsync;
-			AsyncSteps["Step 3: Download Clips and Bookmarks"] = Step_DownloadClipsBookmarksAsync;
-			AsyncSteps["Step 4: Create Cue"] = Step_CreateCueAsync;
+			AsyncSteps[$"Step {step++}: Get Aaxc Metadata"] = () => Task.Run(Step_GetMetadata);
+			AsyncSteps[$"Step {step++}: Download Decrypted Audiobook"] = Step_DownloadAndDecryptAudiobookAsync;
+			if (DownloadOptions.MoveMoovToBeginning && DownloadOptions.OutputFormat is OutputFormat.M4b)
+				AsyncSteps[$"Step {step++}: Move moov atom to beginning"] = Step_MoveMoov;
+			AsyncSteps[$"Step {step++}: Download Clips and Bookmarks"] = Step_DownloadClipsBookmarksAsync;
+			AsyncSteps[$"Step {step++}: Create Cue"] = Step_CreateCueAsync;
 		}
 
 		protected async override Task<bool> Step_DownloadAndDecryptAudiobookAsync()
@@ -31,18 +35,7 @@ namespace AaxDecrypter
 
 			try
 			{
-				await (AaxConversion = decryptAsync(outputFile));
-
-				if (AaxConversion.IsCompletedSuccessfully
-					&& DownloadOptions.MoveMoovToBeginning
-					&& DownloadOptions.OutputFormat is OutputFormat.M4b)
-				{
-					outputFile.Close();
-					AaxConversion = Mp4File.RelocateMoovAsync(OutputFileName);
-					AaxConversion.ConversionProgressUpdate += AaxConversion_MoovProgressUpdate;
-					await AaxConversion;
-					AaxConversion.ConversionProgressUpdate -= AaxConversion_MoovProgressUpdate;
-				}
+				await (AaxConversion = decryptAsync(outputFile));				
 
 				return AaxConversion.IsCompletedSuccessfully;
 			}
@@ -52,23 +45,30 @@ namespace AaxDecrypter
 			}
 		}
 
+		private async Task<bool> Step_MoveMoov()
+		{
+			AaxConversion = Mp4File.RelocateMoovAsync(OutputFileName);
+			AaxConversion.ConversionProgressUpdate += AaxConversion_MoovProgressUpdate;
+			await AaxConversion;
+			AaxConversion.ConversionProgressUpdate -= AaxConversion_MoovProgressUpdate;
+			return AaxConversion.IsCompletedSuccessfully;
+		}
+
 		private void AaxConversion_MoovProgressUpdate(object sender, ConversionProgressEventArgs e)
 		{
 			averageSpeed.AddPosition(e.ProcessPosition.TotalSeconds);
 
-			var remainingTimeToProcess = (e.TotalDuration - e.ProcessPosition).TotalSeconds;
+			var remainingTimeToProcess = (e.EndTime - e.ProcessPosition).TotalSeconds;
 			var estTimeRemaining = remainingTimeToProcess / averageSpeed.Average;
 
 			if (double.IsNormal(estTimeRemaining))
 				OnDecryptTimeRemaining(TimeSpan.FromSeconds(estTimeRemaining));
 
-			var progressPercent = 100d * (1 - remainingTimeToProcess / e.TotalDuration.TotalSeconds);
-
 			OnDecryptProgressUpdate(
 				new DownloadProgress
 				{
-					ProgressPercentage = progressPercent,
-					BytesReceived = (long)(InputFileStream.Length * progressPercent),
+					ProgressPercentage = 100 * e.FractionCompleted,
+					BytesReceived = (long)(InputFileStream.Length * e.FractionCompleted),
 					TotalBytesToReceive = InputFileStream.Length
 				});
 		}
@@ -79,15 +79,13 @@ namespace AaxDecrypter
 			(
 				outputFile,
 				DownloadOptions.LameConfig,
-				DownloadOptions.ChapterInfo,
-				DownloadOptions.TrimOutputToChapterLength
+				DownloadOptions.ChapterInfo
 			)
 			: DownloadOptions.FixupFile
 			? AaxFile.ConvertToMp4aAsync
 			(
 				outputFile,
-				DownloadOptions.ChapterInfo,
-				DownloadOptions.TrimOutputToChapterLength
+				DownloadOptions.ChapterInfo
 			)
 			: AaxFile.ConvertToMp4aAsync(outputFile);
 	}

Source/AaxDecrypter/AudiobookDownloadBase.cs

@@ -3,7 +3,6 @@ using Dinah.Core.Net.Http;
 using Dinah.Core.StepRunner;
 using FileManager;
 using System;
-using System.Diagnostics;
 using System.IO;
 using System.Threading.Tasks;
 
@@ -27,6 +26,7 @@ namespace AaxDecrypter
 		protected IDownloadOptions DownloadOptions { get; }
 		protected NetworkFileStream InputFileStream => nfsPersister.NetworkFileStream;
 		protected virtual long InputFilePosition => InputFileStream.Position;
+		private bool downloadFinished;
 
 		private readonly NetworkFileStreamPersister nfsPersister;
 		private readonly DownloadProgress zeroProgress;
@@ -84,7 +84,11 @@ namespace AaxDecrypter
 			{
 				AverageSpeed averageSpeed = new();
 
-				while (InputFileStream.CanRead && InputFileStream.Length > InputFilePosition && !InputFileStream.IsCancelled)
+				while (
+					InputFileStream.CanRead
+					&& InputFileStream.Length > InputFilePosition
+					&& !InputFileStream.IsCancelled
+					&& !downloadFinished)
 				{
 					averageSpeed.AddPosition(InputFilePosition);
 
@@ -138,8 +142,7 @@ namespace AaxDecrypter
 		protected virtual void FinalizeDownload()
 		{
 			nfsPersister?.Dispose();
-			OnDecryptTimeRemaining(TimeSpan.Zero);
-			OnDecryptProgressUpdate(zeroProgress);
+			downloadFinished = true;
 		}
 
 		protected async Task<bool> Step_DownloadClipsBookmarksAsync()
@@ -221,6 +224,7 @@ namespace AaxDecrypter
 			}
 			finally
 			{
+				nfsp.NetworkFileStream.RequestHeaders["User-Agent"] = DownloadOptions.UserAgent;
 				nfsp.NetworkFileStream.SpeedLimit = DownloadOptions.DownloadSpeedBps;
 			}
 

Source/AaxDecrypter/MpegUtil.cs

@@ -1,5 +1,6 @@
 using AAXClean;
 using NAudio.Lame;
+using System;
 
 namespace AaxDecrypter
 {
@@ -9,17 +10,26 @@ namespace AaxDecrypter
 		{
 			double bitrateMultiple = 1;
 
+			if (mp4File.TimeScale < lameConfig.OutputSampleRate)
+			{
+				lameConfig.OutputSampleRate = mp4File.TimeScale;
+			}
+			else if (mp4File.TimeScale > lameConfig.OutputSampleRate)
+			{
+				bitrateMultiple *= (double)lameConfig.OutputSampleRate / mp4File.TimeScale;
+			}
+
 			if (mp4File.AudioChannels == 2)
 			{
 				if (downsample)
-					bitrateMultiple = 0.5;
+					bitrateMultiple /= 2;
 				else
 					lameConfig.Mode = MPEGMode.Stereo;
 			}
 
 			if (matchSourceBitrate)
 			{
-				int kbps = (int)(mp4File.AverageBitrate * bitrateMultiple / 1024);
+				int kbps = (int)Math.Round(mp4File.AverageBitrate * bitrateMultiple / 1024);
 
 				if (lameConfig.VBR is null)
 					lameConfig.BitRate = kbps;

Source/AaxDecrypter/NetworkFileStream.cs

@@ -14,6 +14,7 @@ namespace AaxDecrypter
 	public class NetworkFileStream : Stream, IUpdatable
 	{
 		public event EventHandler Updated;
+		public event EventHandler DownloadCompleted;
 
 		#region Public Properties
 
@@ -139,7 +140,10 @@ namespace AaxDecrypter
 		public async Task BeginDownloadingAsync()
 		{
 			if (ContentLength != 0 && WritePosition == ContentLength)
+			{
+				_backgroundDownloadTask = Task.CompletedTask;
 				return;
+			}
 
 			if (ContentLength != 0 && WritePosition > ContentLength)
 				throw new WebException($"Specified write position (0x{WritePosition:X10}) is larger than  {nameof(ContentLength)} (0x{ContentLength:X10}).");
@@ -230,6 +234,7 @@ namespace AaxDecrypter
 				_writeFile.Close();
 				_downloadedPiece.Set();
 				OnUpdate();
+				DownloadCompleted?.Invoke(this, null);
 			}
 		}
 

Source/AaxDecrypter/UnencryptedAudiobookDownloader.cs

@@ -26,8 +26,11 @@ namespace AaxDecrypter
 
 		protected override async Task<bool> Step_DownloadAndDecryptAudiobookAsync()
 		{
-			while (InputFilePosition < InputFileStream.Length && !InputFileStream.IsCancelled)
-				await Task.Delay(200);
+			TaskCompletionSource completionSource = new();
+
+			InputFileStream.DownloadCompleted += (_, _) => completionSource.SetResult();
+
+			await completionSource.Task;
 
 			if (IsCanceled)
 				return false;

Source/AppScaffolding/AppScaffolding.csproj

@@ -2,10 +2,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
-    <Version>9.3.3.1</Version>
+    <Version>9.4.6.1</Version>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Octokit" Version="5.0.0" />
+    <PackageReference Include="Octokit" Version="5.0.2" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ApplicationServices\ApplicationServices.csproj" />

Source/AppScaffolding/LibationScaffolding.cs

@@ -75,13 +75,15 @@ namespace AppScaffolding
 			??= new[] { ExecutingAssembly.GetName(), EntryAssembly.GetName() }
 			.Max(a => a.Version);
 
-        /// <summary>Run migrations before loading Configuration for the first time. Then load and return Configuration</summary>
-        public static Configuration RunPreConfigMigrations()
+		/// <summary>Run migrations before loading Configuration for the first time. Then load and return Configuration</summary>
+		public static Configuration RunPreConfigMigrations()
 		{
 			// must occur before access to Configuration instance
 			// // outdated. kept here as an example of what belongs in this area
 			// // Migrations.migrate_to_v5_2_0__pre_config();
 
+			Configuration.SetLibationVersion(BuildVersion);
+
 			//***********************************************//
 			//                                               //
 			//   do not use Configuration before this line   //

Source/ApplicationServices/LibraryCommands.cs

@@ -1,13 +1,17 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text;
 using System.Threading.Tasks;
 using AudibleApi;
 using AudibleUtilities;
 using DataLayer;
 using Dinah.Core;
+using Dinah.Core.Logging;
 using DtoImporterService;
+using FileManager;
 using LibationFileManager;
+using Newtonsoft.Json.Linq;
 using Serilog;
 using static DtoImporterService.PerfLogger;
 
@@ -91,7 +95,8 @@ namespace ApplicationServices
                 stop();
                 var putBreakPointHere = logOutput;
                 ScanEnd?.Invoke(null, null);
-            }
+				GC.Collect(GC.MaxGeneration, GCCollectionMode.Aggressive, true, true);
+			}
         }
 
         #region FULL LIBRARY scan and import
@@ -162,19 +167,28 @@ namespace ApplicationServices
                 stop();
                 var putBreakPointHere = logOutput;
                 ScanEnd?.Invoke(null, null);
+                GC.Collect(GC.MaxGeneration, GCCollectionMode.Aggressive, true, true);
             }
         }
 
         private static async Task<List<ImportItem>> scanAccountsAsync(Func<Account, Task<ApiExtended>> apiExtendedfunc, Account[] accounts, LibraryOptions libraryOptions)
         {
             var tasks = new List<Task<List<ImportItem>>>();
-            foreach (var account in accounts)
+
+            await using LogArchiver archiver
+                = Log.Logger.IsDebugEnabled()
+                ? new LogArchiver(System.IO.Path.Combine(Configuration.Instance.LibationFiles, "LibraryScans.zip"))
+                : default;
+
+			archiver?.DeleteAllButNewestN(20);
+
+			foreach (var account in accounts)
             {
                 // get APIs in serial b/c of logins. do NOT move inside of parallel (Task.WhenAll)
                 var apiExtended = await apiExtendedfunc(account);
 
                 // add scanAccountAsync as a TASK: do not await
-                tasks.Add(scanAccountAsync(apiExtended, account, libraryOptions));
+                tasks.Add(scanAccountAsync(apiExtended, account, libraryOptions, archiver));
             }
 
             // import library in parallel
@@ -183,7 +197,7 @@ namespace ApplicationServices
             return importItems;
         }
 
-        private static async Task<List<ImportItem>> scanAccountAsync(ApiExtended apiExtended, Account account, LibraryOptions libraryOptions)
+        private static async Task<List<ImportItem>> scanAccountAsync(ApiExtended apiExtended, Account account, LibraryOptions libraryOptions, LogArchiver archiver)
         {
             ArgumentValidator.EnsureNotNull(account, nameof(account));
 
@@ -196,6 +210,21 @@ namespace ApplicationServices
 
             var dtoItems = await apiExtended.GetLibraryValidatedAsync(libraryOptions, Configuration.Instance.ImportEpisodes);
 
+            if (archiver is not null)
+            {
+                var fileName = $"{DateTime.Now:u} {account.MaskedLogEntry}.json";
+                var items = await Task.Run(() => JArray.FromObject(dtoItems.Select(i => i.SourceJson)));
+
+				var scanFile = new JObject
+                {
+                    { "Account", account.MaskedLogEntry },
+                    { "ScannedDateTime", DateTime.Now.ToString("u") },
+                    { "Items",  items}
+                };
+
+				await archiver.AddFileAsync(fileName, scanFile);
+			}
+
             logTime($"post scanAccountAsync {account.AccountName} qty: {dtoItems.Count}");
 
             return dtoItems.Select(d => new ImportItem { DtoItem = d, AccountId = account.AccountId, LocaleName = account.Locale?.Name }).ToList();
@@ -242,18 +271,16 @@ namespace ApplicationServices
         #endregion
 
         #region remove/restore books
-        public static Task<int> RemoveBooksAsync(List<string> idsToRemove) => Task.Run(() => removeBooks(idsToRemove));
-        public static int RemoveBook(string idToRemove) => removeBooks(new() { idToRemove });
-        private static int removeBooks(List<string> idsToRemove)
+        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 (idsToRemove is null || !idsToRemove.Any())
+                if (removeLibraryBooks is null || !removeLibraryBooks.Any())
                     return 0;
 
                 using var context = DbContexts.GetContext();
-                var libBooks = context.GetLibrary_Flat_NoTracking();
-                var removeLibraryBooks = libBooks.Where(lb => idsToRemove.Contains(lb.Book.AudibleProductId)).ToList();
 
                 // Attach() NoTracking entities before SaveChanges()
                 foreach (var lb in removeLibraryBooks)
@@ -275,7 +302,7 @@ namespace ApplicationServices
             }
         }
 
-        public static int RestoreBooks(this List<LibraryBook> libraryBooks)
+        public static int RestoreBooks(this IEnumerable<LibraryBook> libraryBooks)
         {
             try
             {
@@ -303,6 +330,31 @@ namespace ApplicationServices
                 throw;
             }
         }
+
+        public static int PermanentlyDeleteBooks(this IEnumerable<LibraryBook> libraryBooks)
+        {
+            try
+            {
+                if (libraryBooks is null || !libraryBooks.Any())
+                    return 0;
+
+                using var context = DbContexts.GetContext();
+
+				context.LibraryBooks.RemoveRange(libraryBooks);
+				context.Books.RemoveRange(libraryBooks.Select(lb => lb.Book));				
+
+                var qtyChanges = context.SaveChanges();
+				if (qtyChanges > 0)
+					finalizeLibrarySizeChange();
+
+				return qtyChanges;
+            }
+            catch (Exception ex)
+            {
+                Log.Logger.Error(ex, "Error restoring books");
+                throw;
+            }
+        }
         #endregion
 
         // call this whenever books are added or removed from library
@@ -346,8 +398,10 @@ namespace ApplicationServices
 
                     if (rating is not null)
                         udi.UpdateRating(rating.OverallRating, rating.PerformanceRating, rating.StoryRating);
-                });
+				});
 
+        public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus, Version libationVersion)
+            => book.UpdateUserDefinedItem(udi => { udi.BookStatus = bookStatus; udi.SetLastDownloaded(libationVersion); });
         public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus)
             => book.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
         public static int UpdateBookStatus(this IEnumerable<Book> books, LiberatedStatus bookStatus)
@@ -428,40 +482,74 @@ 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 pdfsDownloaded, int pdfsNotDownloaded)
+        public record LibraryStats(int booksFullyBackedUp, int booksDownloadedOnly, int booksNoProgress, int booksError, int booksUnavailable, int pdfsDownloaded, int pdfsNotDownloaded, int pdfsUnavailable)
         {
             public int PendingBooks => booksNoProgress + booksDownloadedOnly;
             public bool HasPendingBooks => PendingBooks > 0;
 
-            public bool HasBookResults => 0 < (booksFullyBackedUp + booksDownloadedOnly + booksNoProgress + booksError);
-            public bool HasPdfResults => 0 < (pdfsNotDownloaded + pdfsDownloaded);
-        }
-        public static LibraryStats GetCounts()
+            public bool HasBookResults => 0 < (booksFullyBackedUp + booksDownloadedOnly + booksNoProgress + booksError + booksUnavailable);
+            public bool HasPdfResults => 0 < (pdfsNotDownloaded + pdfsDownloaded + pdfsUnavailable);
+
+			public string StatusString => HasPdfResults ? $"{toBookStatusString()}  |  {toPdfStatusString()}" : toBookStatusString();
+
+			private string toBookStatusString()
+			{
+                if (!HasBookResults) return "No books. Begin by importing your library";
+
+                if (!HasPendingBooks && booksError + booksUnavailable == 0) return $"All {"book".PluralizeWithCount(booksFullyBackedUp)} backed up";
+
+				var sb = new StringBuilder($"BACKUPS: No progress: {booksNoProgress}  In process: {booksDownloadedOnly}  Fully backed up: {booksFullyBackedUp}");
+
+                if (booksError > 0)
+                    sb.Append($"  Errors: {booksError}");
+                if (booksUnavailable > 0)
+					sb.Append($"  Unavailable: {booksUnavailable}");
+
+				return sb.ToString();
+			}
+
+			private string toPdfStatusString()
+            {
+                if (pdfsNotDownloaded + pdfsUnavailable == 0) return $"All {pdfsDownloaded} PDFs downloaded";
+
+                var sb = new StringBuilder($"PDFs: NOT d/l'ed: {pdfsNotDownloaded}  Downloaded: {pdfsDownloaded}");
+
+                if (pdfsUnavailable > 0)
+					sb.Append($"  Unavailable: {pdfsUnavailable}");
+
+                return sb.ToString();
+			}
+		}
+        public static LibraryStats GetCounts(IEnumerable<LibraryBook> libraryBooks = null)
         {
-            var libraryBooks = DbContexts.GetLibrary_Flat_NoTracking();
+            libraryBooks ??= DbContexts.GetLibrary_Flat_NoTracking();
 
             var results = libraryBooks
                 .AsParallel()
-                .Select(lb => Liberated_Status(lb.Book))
+                .Select(lb => new { absent = lb.AbsentFromLastScan, status = Liberated_Status(lb.Book) })
                 .ToList();
-            var booksFullyBackedUp = results.Count(r => r == LiberatedStatus.Liberated);
-            var booksDownloadedOnly = results.Count(r => r == LiberatedStatus.PartialDownload);
-            var booksNoProgress = results.Count(r => r == LiberatedStatus.NotLiberated);
-            var booksError = results.Count(r => r == LiberatedStatus.Error);
 
-            Log.Logger.Information("Book counts. {@DebugInfo}", new { total = results.Count, booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError });
+            var booksFullyBackedUp = results.Count(r => r.status == LiberatedStatus.Liberated);
+            var booksDownloadedOnly = results.Count(r => !r.absent && r.status == LiberatedStatus.PartialDownload);
+            var booksNoProgress = results.Count(r => !r.absent && r.status == LiberatedStatus.NotLiberated);
+            var booksError = results.Count(r => r.status == LiberatedStatus.Error);
+            var booksUnavailable = results.Count(r => r.absent && r.status is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload);
 
-            var boolResults = libraryBooks
+			Log.Logger.Information("Book counts. {@DebugInfo}", new { total = results.Count, booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, booksUnavailable });
+
+            var pdfResults = libraryBooks
                 .AsParallel()
                 .Where(lb => lb.Book.HasPdf())
-                .Select(lb => Pdf_Status(lb.Book))
+                .Select(lb => new { absent = lb.AbsentFromLastScan, status = Pdf_Status(lb.Book) })
                 .ToList();
-            var pdfsDownloaded = boolResults.Count(r => r == LiberatedStatus.Liberated);
-            var pdfsNotDownloaded = boolResults.Count(r => r == LiberatedStatus.NotLiberated);
 
-            Log.Logger.Information("PDF counts. {@DebugInfo}", new { total = boolResults.Count, pdfsDownloaded, pdfsNotDownloaded });
+            var pdfsDownloaded = pdfResults.Count(r => r.status == LiberatedStatus.Liberated);
+            var pdfsNotDownloaded = pdfResults.Count(r => !r.absent && r.status == LiberatedStatus.NotLiberated);
+            var pdfsUnavailable = pdfResults.Count(r => r.absent && r.status == LiberatedStatus.NotLiberated);
 
-            return new(booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, pdfsDownloaded, pdfsNotDownloaded);
+			Log.Logger.Information("PDF counts. {@DebugInfo}", new { total = pdfResults.Count, pdfsDownloaded, pdfsNotDownloaded, pdfsUnavailable });
+
+            return new(booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, booksUnavailable, pdfsDownloaded, pdfsNotDownloaded, pdfsUnavailable);
         }
     }
 }

Source/ApplicationServices/LibraryExporter.cs

@@ -106,6 +106,12 @@ namespace ApplicationServices
 
 		[Name("Language")]
         public string Language { get; set; }
+
+		[Name("LastDownloaded")]
+		public DateTime? LastDownloaded { get; set; }
+
+		[Name("LastDownloadedVersion")]
+        public string LastDownloadedVersion { get; set; }
     }
 	public static class LibToDtos
 	{
@@ -140,7 +146,10 @@ namespace ApplicationServices
 				PdfStatus = a.Book.UserDefinedItem.PdfStatus.ToString(),
 				ContentType = a.Book.ContentType.ToString(),
 				AudioFormat = a.Book.AudioFormat.ToString(),
-				Language = a.Book.Language
+				Language = a.Book.Language,
+				LastDownloaded = a.Book.UserDefinedItem.LastDownloaded,
+				LastDownloadedVersion = a.Book.UserDefinedItem.LastDownloadedVersion?.ToString() ?? "",
+
 			}).ToList();
 	}
 	public static class LibraryExporter
@@ -212,7 +221,9 @@ namespace ApplicationServices
 				nameof(ExportDto.PdfStatus),
 				nameof(ExportDto.ContentType),
 				nameof(ExportDto.AudioFormat),
-                nameof(ExportDto.Language)
+                nameof(ExportDto.Language),
+                nameof(ExportDto.LastDownloaded),
+                nameof(ExportDto.LastDownloadedVersion),
             };
 			var col = 0;
 			foreach (var c in columns)
@@ -238,9 +249,9 @@ namespace ApplicationServices
 
 				row.CreateCell(col++).SetCellValue(dto.Account);
 
-				var dateAddedCell = row.CreateCell(col++);
-				dateAddedCell.CellStyle = dateStyle;
-				dateAddedCell.SetCellValue(dto.DateAdded);
+				var dateCell = row.CreateCell(col++);
+				dateCell.CellStyle = dateStyle;
+				dateCell.SetCellValue(dto.DateAdded);
 
 				row.CreateCell(col++).SetCellValue(dto.AudibleProductId);
 				row.CreateCell(col++).SetCellValue(dto.Locale);
@@ -281,6 +292,15 @@ namespace ApplicationServices
                 row.CreateCell(col++).SetCellValue(dto.AudioFormat);
                 row.CreateCell(col++).SetCellValue(dto.Language);
 
+				if (dto.LastDownloaded.HasValue)
+				{
+					dateCell = row.CreateCell(col);
+					dateCell.CellStyle = dateStyle;
+					dateCell.SetCellValue(dto.LastDownloaded.Value);
+				}
+
+                row.CreateCell(++col).SetCellValue(dto.LastDownloadedVersion);
+
                 rowIndex++;
 			}
 

Source/AudibleUtilities/ApiExtended.cs

@@ -1,16 +1,15 @@
 using System;
 using System.Collections.Generic;
-using System.Globalization;
 using System.Linq;
-using System.Threading;
+using System.Threading.Channels;
 using System.Threading.Tasks;
+using System.Diagnostics;
 using AudibleApi;
 using AudibleApi.Common;
 using Dinah.Core;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
 using Polly;
 using Polly.Retry;
+using System.Threading;
 
 namespace AudibleUtilities
 {
@@ -19,6 +18,9 @@ namespace AudibleUtilities
 	{
 		public Api Api { get; private set; }
 
+		private const int MaxConcurrency = 10;
+		private const int BatchSize = 50;
+
 		private ApiExtended(Api api) => Api = api;
 
 		/// <summary>Get api from existing tokens else login with 'eager' choice. External browser url is provided. Response can be external browser login or continuing with native api callbacks.</summary>
@@ -39,42 +41,6 @@ namespace AudibleUtilities
 			return new ApiExtended(api);
 		}
 
-		/// <summary>Get api from existing tokens else login with native api callbacks.</summary>
-		public static async Task<ApiExtended> CreateAsync(Account account, ILoginCallback loginCallback)
-		{
-			Serilog.Log.Logger.Information("{@DebugInfo}", new
-			{
-				LoginType = nameof(ILoginCallback),
-				Account = account?.MaskedLogEntry ?? "[null]",
-				LocaleName = account?.Locale?.Name
-			});
-
-			var api = await EzApiCreator.GetApiAsync(
-				loginCallback,
-				account.Locale,
-				AudibleApiStorage.AccountsSettingsFile,
-				account.GetIdentityTokensJsonPath());
-			return new ApiExtended(api);
-		}
-
-		/// <summary>Get api from existing tokens else login with external browser</summary>
-		public static async Task<ApiExtended> CreateAsync(Account account, ILoginExternal loginExternal)
-		{
-			Serilog.Log.Logger.Information("{@DebugInfo}", new
-			{
-				LoginType = nameof(ILoginExternal),
-				Account = account?.MaskedLogEntry ?? "[null]",
-				LocaleName = account?.Locale?.Name
-			});
-
-			var api = await EzApiCreator.GetApiAsync(
-				loginExternal,
-				account.Locale,
-				AudibleApiStorage.AccountsSettingsFile,
-				account.GetIdentityTokensJsonPath());
-			return new ApiExtended(api);
-		}
-
 		/// <summary>Get api from existing tokens. Assumes you have valid login tokens. Else exception</summary>
 		public static async Task<ApiExtended> CreateAsync(Account account)
 		{
@@ -121,44 +87,76 @@ namespace AudibleUtilities
 
 		private async Task<List<Item>> getItemsAsync(LibraryOptions libraryOptions, bool importEpisodes)
 		{
-			var items = new List<Item>();
-
 			Serilog.Log.Logger.Debug("Beginning library scan.");
 
-			List<Task<List<Item>>> getChildEpisodesTasks = new();
+			List<Item> items = new();
+			var sw = Stopwatch.StartNew();
+			var totalTime = TimeSpan.Zero;
+			using var semaphore = new SemaphoreSlim(MaxConcurrency);
 
-			int count = 0, maxConcurrentEpisodeScans = 5;
-			using SemaphoreSlim concurrencySemaphore = new(maxConcurrentEpisodeScans);
+			var episodeChannel = Channel.CreateUnbounded<string>(new UnboundedChannelOptions { SingleReader = true, SingleWriter = true });
+			var batchReaderTask = readAllAsinsAsync(episodeChannel.Reader, semaphore);
 
-			await foreach (var item in Api.GetLibraryItemAsyncEnumerable(libraryOptions))
+			//Scan the library for all added books.
+			//Get relationship asins from episode-type items and write them to episodeChannel where they will be batched and queried.
+			await foreach (var item in Api.GetLibraryItemsPagesAsync(libraryOptions, BatchSize, semaphore))
 			{
-				if ((item.IsEpisodes || item.IsSeriesParent) && importEpisodes)
+				if (importEpisodes)
 				{
-					//Get child episodes asynchronously and await all at the end
-					getChildEpisodesTasks.Add(getChildEpisodesAsync(concurrencySemaphore, item));
-				}
-				else if (!item.IsEpisodes && !item.IsSeriesParent)
-					items.Add(item);
+					var episodes = item.Where(i => i.IsEpisodes).ToList();
+					var series = item.Where(i => i.IsSeriesParent).ToList();
 
-				count++;
+					var parentAsins = episodes
+						.SelectMany(i => i.Relationships)
+						.Where(r => r.RelationshipToProduct == RelationshipToProduct.Parent)
+						.Select(r => r.Asin);
+
+					var episodeAsins = series
+						.SelectMany(i => i.Relationships)
+						.Where(r => r.RelationshipToProduct == RelationshipToProduct.Child && r.RelationshipType == RelationshipType.Episode)
+						.Select(r => r.Asin);
+
+					foreach (var asin in parentAsins.Concat(episodeAsins))
+						episodeChannel.Writer.TryWrite(asin);
+
+					items.AddRange(episodes);
+					items.AddRange(series);
+				}
+
+				items.AddRange(item.Where(i => !i.IsSeriesParent && !i.IsEpisodes));
 			}
 
-			Serilog.Log.Logger.Debug("Library scan complete. Found {count} books and series. Waiting on {getChildEpisodesTasksCount} series episode scans to complete.", count, getChildEpisodesTasks.Count);
+			sw.Stop();
+			totalTime += sw.Elapsed;
+			Serilog.Log.Logger.Debug("Library scan complete after {elappsed_ms} ms. Found {count} books and series. Waiting on series episode scans to complete.", sw.ElapsedMilliseconds, items.Count);
+			sw.Restart();
 
-			//await and add all episodes from all parents
-			foreach (var epList in await Task.WhenAll(getChildEpisodesTasks))
-				items.AddRange(epList);
+			//Signal that we're done adding asins
+			episodeChannel.Writer.Complete();
 
-			Serilog.Log.Logger.Debug("Completed library scan.");
+			//Wait for all episodes/parents to be retrived
+			var allEps = await batchReaderTask;
+
+			sw.Stop();
+			totalTime += sw.Elapsed;
+			Serilog.Log.Logger.Debug("Episode scan complete after {elappsed_ms} ms. Found {count} episodes and series .", sw.ElapsedMilliseconds, allEps.Count);
+			sw.Restart();
+
+			Serilog.Log.Logger.Debug("Begin indexing series episodes");
+			items.AddRange(allEps);
+
+			//Set the Item.Series info for episodes and parents.
+			foreach (var parent in items.Where(i => i.IsSeriesParent))
+			{
+				var children = items.Where(i => i.IsEpisodes && i.Relationships.Any(r => r.Asin == parent.Asin));
+				setSeries(parent, children);
+			}
+
+			sw.Stop();
+			totalTime += sw.Elapsed;
+			Serilog.Log.Logger.Information("Completed indexing series episodes after {elappsed_ms} ms.", sw.ElapsedMilliseconds);
+			Serilog.Log.Logger.Information($"Completed library scan in {totalTime.TotalMilliseconds:F0} ms.");
 
-#if DEBUG
-			//// this will not work for multi accounts
-			//var library_json = "library.json";
-			//library_json = System.IO.Path.GetFullPath(library_json);
-			//if (System.IO.File.Exists(library_json))
-			//    items = AudibleApi.Common.Converter.FromJson<List<Item>>(System.IO.File.ReadAllText(library_json));
-			//System.IO.File.WriteAllText(library_json, AudibleApi.Common.Converter.ToJson(items));
-#endif
 			var validators = new List<IValidator>();
 			validators.AddRange(getValidators());
 			foreach (var v in validators)
@@ -182,166 +180,91 @@ namespace AudibleUtilities
 
 		#region episodes and podcasts
 
-		private async Task<List<Item>> getChildEpisodesAsync(SemaphoreSlim concurrencySemaphore, Item parent)
+		/// <summary>
+		/// Read asins from the channel and request catalog item info in batches of <see cref="BatchSize"/>. Blocks until <paramref name="channelReader"/> is closed.
+		/// </summary>
+		/// <param name="channelReader">Input asins to batch</param>
+		/// <param name="semaphore">Shared semaphore to limit concurrency</param>
+		/// <returns>All <see cref="Item"/>s of asins written to the channel.</returns>
+		private async Task<List<Item>> readAllAsinsAsync(ChannelReader<string> channelReader, SemaphoreSlim semaphore)
 		{
-			await concurrencySemaphore.WaitAsync();
+			int batchNum = 1;
+			List<Task<List<Item>>> getTasks = new();
 
+			while (await channelReader.WaitToReadAsync())
+			{
+				List<string> asins = new();
+
+				while (asins.Count < BatchSize && await channelReader.WaitToReadAsync())
+				{
+					var asin = await channelReader.ReadAsync();
+
+					if (!asins.Contains(asin))
+						asins.Add(asin);
+				}
+				await semaphore.WaitAsync();
+				getTasks.Add(getProductsAsync(batchNum++, asins, semaphore));
+			}
+
+			var completed = await Task.WhenAll(getTasks);
+			//We only want Series parents and Series episodes. Explude other relationship types (e.g. 'season')
+			return completed.SelectMany(l => l).Where(i => i.IsSeriesParent || i.IsEpisodes).ToList();
+		}
+
+		private async Task<List<Item>> getProductsAsync(int batchNum, List<string> asins, SemaphoreSlim semaphore)
+		{
+			Serilog.Log.Logger.Debug($"Batch {batchNum} Begin: Fetching {asins.Count} asins");
 			try
 			{
-				Serilog.Log.Logger.Debug("Beginning episode scan for {parent}", parent);
+				var sw = Stopwatch.StartNew();
+				var items = await Api.GetCatalogProductsAsync(asins, CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
+				sw.Stop();
 
-				List<Item> children;
+				Serilog.Log.Logger.Debug($"Batch {batchNum} End: Retrieved {items.Count} items in {sw.ElapsedMilliseconds} ms");
 
-				if (parent.IsEpisodes)
+				return items;
+			}
+			catch (Exception ex)
+			{
+				Serilog.Log.Logger.Error(ex, "Error fetching batch of episodes. {@DebugInfo}", new { asins });
+				throw;
+			}
+			finally { semaphore.Release(); }
+		}
+
+		private static void setSeries(Item parent, IEnumerable<Item> children)
+		{
+			//A series parent will always have exactly 1 Series
+			parent.Series = new[]
+			{
+				new Series
 				{
-					//The 'parent' is a single episode that was added to the library.
-					//Get the episode's parent and add it to the database.
-
-					Serilog.Log.Logger.Debug("Supplied Parent is an episode. Beginning parent scan for {parent}", parent);
-
-					children = new() { parent };
-
-					var parentAsins = parent.Relationships
-						.Where(r => r.RelationshipToProduct == RelationshipToProduct.Parent)
-						.Select(p => p.Asin);
-
-					var seriesParents = await Api.GetCatalogProductsAsync(parentAsins, CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
-
-					int numSeriesParents = seriesParents.Count(p => p.IsSeriesParent);
-					if (numSeriesParents != 1)
-					{
-						//There should only ever be 1 top-level parent per episode. If not, log
-						//so we can figure out what to do about those special cases, and don't
-						//import the episode.
-						JsonSerializerSettings Settings = new()
-						{
-							MetadataPropertyHandling = MetadataPropertyHandling.Ignore,
-							DateParseHandling = DateParseHandling.None,
-							Converters =
-							{
-								new IsoDateTimeConverter { DateTimeStyles = DateTimeStyles.AssumeUniversal }
-							},
-						};
-						Serilog.Log.Logger.Error($"Found {numSeriesParents} parents for {parent.Asin}\r\nEpisode Product:\r\n{JsonConvert.SerializeObject(parent, Formatting.None, Settings)}");
-						return new List<Item>();
-					}
-
-					var realParent = seriesParents.Single(p => p.IsSeriesParent);
-					realParent.PurchaseDate = parent.PurchaseDate;
-
-					Serilog.Log.Logger.Debug("Completed parent scan for {parent}", parent); 
-					parent = realParent;
-				}
-				else
-				{
-					children = await getEpisodeChildrenAsync(parent);
-					if (!children.Any())
-						return new();
+					Asin = parent.Asin,
+					Sequence = "-1",
+					Title = parent.TitleWithSubtitle
 				}
+			};
 
-				//A series parent will always have exactly 1 Series
-				parent.Series = new Series[]
+			if (parent.PurchaseDate == default)
+				parent.PurchaseDate = children.Select(c => c.PurchaseDate).Order().First();
+
+			foreach (var child in children)
+			{
+				// use parent's 'DateAdded'. DateAdded is just a convenience prop for: PurchaseDate.UtcDateTime
+				child.PurchaseDate = parent.PurchaseDate;
+				// parent is essentially a series
+				child.Series = new[]
 				{
 					new Series
 					{
 						Asin = parent.Asin,
-						Sequence = "-1",
+						// This should properly be Single() not FirstOrDefault(), but FirstOrDefault is defensive for malformed data from audible
+						Sequence = parent.Relationships.FirstOrDefault(r => r.Asin == child.Asin)?.Sort?.ToString() ?? "0",
 						Title = parent.TitleWithSubtitle
 					}
 				};
-
-				foreach (var child in children)
-				{
-					// use parent's 'DateAdded'. DateAdded is just a convenience prop for: PurchaseDate.UtcDateTime
-					child.PurchaseDate = parent.PurchaseDate;
-					// parent is essentially a series
-					child.Series = new Series[]
-					{
-						new Series
-						{
-							Asin = parent.Asin,
-							// This should properly be Single() not FirstOrDefault(), but FirstOrDefault is defensive for malformed data from audible
-							Sequence = parent.Relationships.FirstOrDefault(r => r.Asin == child.Asin)?.Sort?.ToString() ?? "0",
-							Title = parent.TitleWithSubtitle
-						}
-					};
-				}
-
-				children.Add(parent);
-
-				Serilog.Log.Logger.Debug("Completed episode scan for {parent}", parent);
-
-				return children;
 			}
-			finally
-			{
-				concurrencySemaphore.Release();
-			}
-		}
-
-		private async Task<List<Item>> getEpisodeChildrenAsync(Item parent)
-		{
-			var childrenIds = parent.Relationships
-				.Where(r => r.RelationshipToProduct == RelationshipToProduct.Child && r.RelationshipType == RelationshipType.Episode)
-				.Select(r => r.Asin)
-				.ToList();
-
-			// fetch children in batches
-			const int batchSize = 20;
-
-			var results = new List<Item>();
-
-			for (var i = 1; ; i++)
-			{
-				var idBatch = childrenIds.Skip((i - 1) * batchSize).Take(batchSize).ToList();
-				if (!idBatch.Any())
-					break;
-
-				List<Item> childrenBatch;
-				try
-				{
-					childrenBatch = await Api.GetCatalogProductsAsync(idBatch, CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
-#if DEBUG
-					//var childrenBatchDebug = childrenBatch.Select(i => i.ToJson()).Aggregate((a, b) => $"{a}\r\n\r\n{b}");
-					//System.IO.File.WriteAllText($"children of {parent.Asin}.json", childrenBatchDebug);
-#endif
-				}
-				catch (Exception ex)
-				{
-					Serilog.Log.Logger.Error(ex, "Error fetching batch of episodes. {@DebugInfo}", new
-					{
-						ParentId = parent.Asin,
-						ParentTitle = parent.Title,
-						BatchNumber = i,
-						ChildIdBatch = idBatch
-					});
-					throw;
-				}
-
-				Serilog.Log.Logger.Debug($"Batch {i}: {childrenBatch.Count} results\t({{parent}})", parent);
-				// the service returned no results. probably indicates an error. stop running batches
-				if (!childrenBatch.Any())
-					break;
-
-				results.AddRange(childrenBatch);
-			}
-
-			Serilog.Log.Logger.Debug("Parent episodes/podcasts series. Children found. {@DebugInfo}", new
-			{
-				ParentId = parent.Asin,
-				ParentTitle = parent.Title,
-				ChildCount = childrenIds.Count
-			});
-
-			if (childrenIds.Count != results.Count)
-			{
-				var ex = new ApplicationException($"Mis-match: Children defined by parent={childrenIds.Count}. Children returned by batches={results.Count}");
-				Serilog.Log.Logger.Error(ex, "{parent} - Quantity of series episodes defined by parent does not match quantity returned by batch fetching.", parent);
-				throw ex;
-			}
-
-			return results;
 		}
 		#endregion
 	}
-}
+}

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AudibleApi" Version="7.3.3.1" />
+    <PackageReference Include="AudibleApi" Version="8.2.2.1" />
   </ItemGroup>
 
   <ItemGroup>

Source/AudibleUtilities/Mkb79Auth.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using AudibleApi;
 using AudibleApi.Authorization;
+using AudibleApi.Cryptography;
 using Dinah.Core;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
@@ -178,7 +179,7 @@ namespace AudibleUtilities
 				LocaleCode = account.Locale.CountryCode,
 				RefreshToken = account.IdentityTokens.RefreshToken.Value,				
 				StoreAuthenticationCookie = account.IdentityTokens.StoreAuthenticationCookie,
-				WebsiteCookies = new(account.IdentityTokens.Cookies.ToKeyValuePair()),
+				WebsiteCookies = new(account.IdentityTokens.Cookies),
 			};
 	}
 

Source/DataLayer/Configurations/BookConfig.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using System;
 
 namespace DataLayer.Configurations
 {
@@ -19,40 +20,45 @@ namespace DataLayer.Configurations
             entity.Ignore(nameof(Book.Authors));
             entity.Ignore(nameof(Book.Narrators));
             entity.Ignore(nameof(Book.AudioFormat));
-			//// these don't seem to matter
-			//entity.Ignore(nameof(Book.AuthorNames));
-			//entity.Ignore(nameof(Book.NarratorNames));
-			//entity.Ignore(nameof(Book.HasPdfs));
+            //// these don't seem to matter
+            //entity.Ignore(nameof(Book.AuthorNames));
+            //entity.Ignore(nameof(Book.NarratorNames));
+            //entity.Ignore(nameof(Book.HasPdfs));
 
-			// OwnsMany: "Can only ever appear on navigation properties of other entity types.
-			//  Are automatically loaded, and can only be tracked by a DbContext alongside their owner."
-			entity
-				.OwnsMany(b => b.Supplements, b_s =>
-				{
-					b_s.WithOwner(s => s.Book)
-						.HasForeignKey(s => s.BookId);
-					b_s.HasKey(s => s.SupplementId);
-				});
+            // OwnsMany: "Can only ever appear on navigation properties of other entity types.
+            //  Are automatically loaded, and can only be tracked by a DbContext alongside their owner."
+            entity
+                .OwnsMany(b => b.Supplements, b_s =>
+                {
+                    b_s.WithOwner(s => s.Book)
+                        .HasForeignKey(s => s.BookId);
+                    b_s.HasKey(s => s.SupplementId);
+                });
             // even though it's owned, we need to map its backing field
             entity
                 .Metadata
                 .FindNavigation(nameof(Book.Supplements))
                 .SetPropertyAccessMode(PropertyAccessMode.Field);
 
-			// owns it 1:1, store in separate table
-			entity
-				.OwnsOne(b => b.UserDefinedItem, b_udi =>
-				{
-					b_udi.WithOwner(udi => udi.Book)
-						.HasForeignKey(udi => udi.BookId);
-					b_udi.Property(udi => udi.BookId).ValueGeneratedNever();
-					b_udi.ToTable(nameof(Book.UserDefinedItem));
+            // owns it 1:1, store in separate table
+            entity
+                .OwnsOne(b => b.UserDefinedItem, b_udi =>
+                {
+                    b_udi.WithOwner(udi => udi.Book)
+                        .HasForeignKey(udi => udi.BookId);
+                    b_udi.Property(udi => udi.BookId).ValueGeneratedNever();
+                    b_udi.ToTable(nameof(Book.UserDefinedItem));
 
-					// owns it 1:1, store in same table
-					b_udi.OwnsOne(udi => udi.Rating);
-				});
+                    b_udi.Property(udi => udi.LastDownloaded);
+                    b_udi
+                        .Property(udi => udi.LastDownloadedVersion)
+                        .HasConversion(ver => ver.ToString(), str => Version.Parse(str));
 
-			entity
+                    // owns it 1:1, store in same table
+                    b_udi.OwnsOne(udi => udi.Rating);
+                });
+
+            entity
                 .Metadata
                 .FindNavigation(nameof(Book.ContributorsLink))
                 // PropertyAccessMode.Field : Contributions is a get-only property, not a field, so use its backing field
@@ -68,6 +74,6 @@ namespace DataLayer.Configurations
                 .HasOne(b => b.Category)
                 .WithMany()
                 .HasForeignKey(b => b.CategoryId);
-		}
+        }
     }
 }

Source/DataLayer/EfClasses/LibraryBook.cs

@@ -12,6 +12,7 @@ namespace DataLayer
         public string Account { get; private set; }
 
         public bool IsDeleted { get; set; }
+        public bool AbsentFromLastScan { get; set; }
 
         private LibraryBook() { }
         public LibraryBook(Book book, DateTime dateAdded, string account)

Source/DataLayer/EfClasses/Rating.cs

@@ -5,7 +5,7 @@ using Dinah.Core;
 namespace DataLayer
 {
     /// <summary>Parameterless ctor and setters should be used by EF only. Everything else should treat it as immutable</summary>
-    public class Rating : ValueObject_Static<Rating>
+    public class Rating : ValueObject_Static<Rating>, IComparable<Rating>, IComparable
     {
         public float OverallRating { get; private set; }
         public float PerformanceRating { get; private set; }
@@ -38,6 +38,16 @@ namespace DataLayer
             yield return StoryRating;
         }
 
-		public override string ToString() => $"Overall={OverallRating} Perf={PerformanceRating} Story={StoryRating}";
-	}
+        public override string ToString() => $"Overall={OverallRating} Perf={PerformanceRating} Story={StoryRating}";
+
+        public int CompareTo(Rating other)
+        {
+            var compare = OverallRating.CompareTo(other.OverallRating);
+            if (compare != 0) return compare;
+            compare = PerformanceRating.CompareTo(other.PerformanceRating);
+            if (compare != 0) return compare;
+            return StoryRating.CompareTo(other.StoryRating);
+        }
+        public int CompareTo(object obj) => obj is Rating second ? CompareTo(second) : -1;
+    }
 }

Source/DataLayer/EfClasses/UserDefinedItem.cs

@@ -24,8 +24,27 @@ namespace DataLayer
     {
         internal int BookId { get; private set; }
         public Book Book { get; private set; }
+        public DateTime? LastDownloaded { get; private set; }
+        public Version LastDownloadedVersion { get; private set; }
 
-        private UserDefinedItem() { }
+        public void SetLastDownloaded(Version version)
+        {
+            if (LastDownloadedVersion != version)
+            {
+                LastDownloadedVersion = version;
+				OnItemChanged(nameof(LastDownloadedVersion));
+			}
+
+            if (version is null)
+                LastDownloaded = null;
+            else
+            {
+				LastDownloaded = DateTime.Now;
+                OnItemChanged(nameof(LastDownloaded));
+			}
+		}
+
+		private UserDefinedItem() { }
         internal UserDefinedItem(Book book)
 		{
 			ArgumentValidator.EnsureNotNull(book, nameof(book));
@@ -103,7 +122,11 @@ namespace DataLayer
         public Rating Rating { get; private set; } = new Rating(0, 0, 0);
 
         public void UpdateRating(float overallRating, float performanceRating, float storyRating)
-            => Rating.Update(overallRating, performanceRating, storyRating);
+        {
+            var changed = Rating.OverallRating != overallRating || Rating.PerformanceRating != performanceRating || Rating.StoryRating != storyRating;
+			Rating.Update(overallRating, performanceRating, storyRating);
+            if (changed) OnItemChanged(nameof(Rating));
+		}
         #endregion
 
         #region LiberatedStatuses

Source/DataLayer/Migrations/20230302220539_AddLastDownloadedInfo.Designer.cs

@@ -0,0 +1,410 @@
+// <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("20230302220539_AddLastDownloadedInfo")]
+    partial class AddLastDownloadedInfo
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.3");
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Property<int>("BookId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("CategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Language")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("LengthInMinutes")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Locale")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureLarge")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("_audioFormat")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.HasIndex("AudibleProductId");
+
+                    b.HasIndex("CategoryId");
+
+                    b.ToTable("Books");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContributorId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<byte>("Order")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "ContributorId", "Role");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("ContributorId");
+
+                    b.ToTable("BookContributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.Property<int>("CategoryId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleCategoryId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("ParentCategoryCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("CategoryId");
+
+                    b.HasIndex("AudibleCategoryId");
+
+                    b.HasIndex("ParentCategoryCategoryId");
+
+                    b.ToTable("Categories");
+
+                    b.HasData(
+                        new
+                        {
+                            CategoryId = -1,
+                            AudibleCategoryId = "",
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleContributorId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ContributorId");
+
+                    b.HasIndex("Name");
+
+                    b.ToTable("Contributors");
+
+                    b.HasData(
+                        new
+                        {
+                            ContributorId = -1,
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleSeriesId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId");
+
+                    b.HasIndex("AudibleSeriesId");
+
+                    b.ToTable("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Order")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId", "BookId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("SeriesId");
+
+                    b.ToTable("SeriesBook");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.HasOne("DataLayer.Category", "Category")
+                        .WithMany()
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<float>("OverallRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("PerformanceRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("StoryRating")
+                                .HasColumnType("REAL");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("Books");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BookId");
+                        });
+
+                    b.OwnsMany("DataLayer.Supplement", "Supplements", b1 =>
+                        {
+                            b1.Property<int>("SupplementId")
+                                .ValueGeneratedOnAdd()
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Url")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("SupplementId");
+
+                            b1.HasIndex("BookId");
+
+                            b1.ToTable("Supplement");
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.Navigation("Book");
+                        });
+
+                    b.OwnsOne("DataLayer.UserDefinedItem", "UserDefinedItem", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<int?>("PdfStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Tags")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("UserDefinedItem", (string)null);
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.OwnsOne("DataLayer.Rating", "Rating", b2 =>
+                                {
+                                    b2.Property<int>("UserDefinedItemBookId")
+                                        .HasColumnType("INTEGER");
+
+                                    b2.Property<float>("OverallRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("PerformanceRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("StoryRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.HasKey("UserDefinedItemBookId");
+
+                                    b2.ToTable("UserDefinedItem");
+
+                                    b2.WithOwner()
+                                        .HasForeignKey("UserDefinedItemBookId");
+                                });
+
+                            b1.Navigation("Book");
+
+                            b1.Navigation("Rating");
+                        });
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Rating");
+
+                    b.Navigation("Supplements");
+
+                    b.Navigation("UserDefinedItem");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("ContributorsLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Contributor", "Contributor")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("ContributorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Contributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.HasOne("DataLayer.Category", "ParentCategory")
+                        .WithMany()
+                        .HasForeignKey("ParentCategoryCategoryId");
+
+                    b.Navigation("ParentCategory");
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithOne()
+                        .HasForeignKey("DataLayer.LibraryBook", "BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("SeriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Series", "Series")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("SeriesId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Navigation("ContributorsLink");
+
+                    b.Navigation("SeriesLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Source/DataLayer/Migrations/20230302220539_AddLastDownloadedInfo.cs

@@ -0,0 +1,39 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DataLayer.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddLastDownloadedInfo : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "LastDownloaded",
+                table: "UserDefinedItem",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.AddColumn<string>(
+                name: "LastDownloadedVersion",
+                table: "UserDefinedItem",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "LastDownloaded",
+                table: "UserDefinedItem");
+
+            migrationBuilder.DropColumn(
+                name: "LastDownloadedVersion",
+                table: "UserDefinedItem");
+        }
+    }
+}

Source/DataLayer/Migrations/20230308013410_AddAbsentFromLastScan.Designer.cs

@@ -0,0 +1,413 @@
+// <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("20230308013410_AddAbsentFromLastScan")]
+    partial class AddAbsentFromLastScan
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.3");
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Property<int>("BookId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleProductId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("CategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContentType")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("DatePublished")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsAbridged")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Language")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("LengthInMinutes")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Locale")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PictureLarge")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("_audioFormat")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.HasIndex("AudibleProductId");
+
+                    b.HasIndex("CategoryId");
+
+                    b.ToTable("Books");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("ContributorId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<byte>("Order")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId", "ContributorId", "Role");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("ContributorId");
+
+                    b.ToTable("BookContributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.Property<int>("CategoryId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleCategoryId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("ParentCategoryCategoryId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("CategoryId");
+
+                    b.HasIndex("AudibleCategoryId");
+
+                    b.HasIndex("ParentCategoryCategoryId");
+
+                    b.ToTable("Categories");
+
+                    b.HasData(
+                        new
+                        {
+                            CategoryId = -1,
+                            AudibleCategoryId = "",
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Property<int>("ContributorId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleContributorId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ContributorId");
+
+                    b.HasIndex("Name");
+
+                    b.ToTable("Contributors");
+
+                    b.HasData(
+                        new
+                        {
+                            ContributorId = -1,
+                            Name = ""
+                        });
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("AbsentFromLastScan")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Account")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DateAdded")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("BookId");
+
+                    b.ToTable("LibraryBooks");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("AudibleSeriesId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId");
+
+                    b.HasIndex("AudibleSeriesId");
+
+                    b.ToTable("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.Property<int>("SeriesId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("BookId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Order")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("SeriesId", "BookId");
+
+                    b.HasIndex("BookId");
+
+                    b.HasIndex("SeriesId");
+
+                    b.ToTable("SeriesBook");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.HasOne("DataLayer.Category", "Category")
+                        .WithMany()
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.OwnsOne("DataLayer.Rating", "Rating", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<float>("OverallRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("PerformanceRating")
+                                .HasColumnType("REAL");
+
+                            b1.Property<float>("StoryRating")
+                                .HasColumnType("REAL");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("Books");
+
+                            b1.WithOwner()
+                                .HasForeignKey("BookId");
+                        });
+
+                    b.OwnsMany("DataLayer.Supplement", "Supplements", b1 =>
+                        {
+                            b1.Property<int>("SupplementId")
+                                .ValueGeneratedOnAdd()
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Url")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("SupplementId");
+
+                            b1.HasIndex("BookId");
+
+                            b1.ToTable("Supplement");
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.Navigation("Book");
+                        });
+
+                    b.OwnsOne("DataLayer.UserDefinedItem", "UserDefinedItem", b1 =>
+                        {
+                            b1.Property<int>("BookId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<int>("BookStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<int?>("PdfStatus")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<string>("Tags")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("BookId");
+
+                            b1.ToTable("UserDefinedItem", (string)null);
+
+                            b1.WithOwner("Book")
+                                .HasForeignKey("BookId");
+
+                            b1.OwnsOne("DataLayer.Rating", "Rating", b2 =>
+                                {
+                                    b2.Property<int>("UserDefinedItemBookId")
+                                        .HasColumnType("INTEGER");
+
+                                    b2.Property<float>("OverallRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("PerformanceRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.Property<float>("StoryRating")
+                                        .HasColumnType("REAL");
+
+                                    b2.HasKey("UserDefinedItemBookId");
+
+                                    b2.ToTable("UserDefinedItem");
+
+                                    b2.WithOwner()
+                                        .HasForeignKey("UserDefinedItemBookId");
+                                });
+
+                            b1.Navigation("Book");
+
+                            b1.Navigation("Rating");
+                        });
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Rating");
+
+                    b.Navigation("Supplements");
+
+                    b.Navigation("UserDefinedItem");
+                });
+
+            modelBuilder.Entity("DataLayer.BookContributor", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("ContributorsLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Contributor", "Contributor")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("ContributorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Contributor");
+                });
+
+            modelBuilder.Entity("DataLayer.Category", b =>
+                {
+                    b.HasOne("DataLayer.Category", "ParentCategory")
+                        .WithMany()
+                        .HasForeignKey("ParentCategoryCategoryId");
+
+                    b.Navigation("ParentCategory");
+                });
+
+            modelBuilder.Entity("DataLayer.LibraryBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithOne()
+                        .HasForeignKey("DataLayer.LibraryBook", "BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+                });
+
+            modelBuilder.Entity("DataLayer.SeriesBook", b =>
+                {
+                    b.HasOne("DataLayer.Book", "Book")
+                        .WithMany("SeriesLink")
+                        .HasForeignKey("BookId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DataLayer.Series", "Series")
+                        .WithMany("BooksLink")
+                        .HasForeignKey("SeriesId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Book");
+
+                    b.Navigation("Series");
+                });
+
+            modelBuilder.Entity("DataLayer.Book", b =>
+                {
+                    b.Navigation("ContributorsLink");
+
+                    b.Navigation("SeriesLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Contributor", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+
+            modelBuilder.Entity("DataLayer.Series", b =>
+                {
+                    b.Navigation("BooksLink");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Source/DataLayer/Migrations/20230308013410_AddAbsentFromLastScan.cs

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

Source/DataLayer/Migrations/LibationContextModelSnapshot.cs

@@ -15,7 +15,7 @@ namespace DataLayer.Migrations
         protected override void BuildModel(ModelBuilder modelBuilder)
         {
 #pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "7.0.2");
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.3");
 
             modelBuilder.Entity("DataLayer.Book", b =>
                 {
@@ -157,6 +157,9 @@ namespace DataLayer.Migrations
                     b.Property<int>("BookId")
                         .HasColumnType("INTEGER");
 
+                    b.Property<bool>("AbsentFromLastScan")
+                        .HasColumnType("INTEGER");
+
                     b.Property<string>("Account")
                         .HasColumnType("TEXT");
 
@@ -272,6 +275,12 @@ namespace DataLayer.Migrations
                             b1.Property<int>("BookStatus")
                                 .HasColumnType("INTEGER");
 
+                            b1.Property<DateTime?>("LastDownloaded")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("LastDownloadedVersion")
+                                .HasColumnType("TEXT");
+
                             b1.Property<int?>("PdfStatus")
                                 .HasColumnType("INTEGER");
 

Source/DataLayer/QueryObjects/LibraryBookQueries.cs

@@ -107,8 +107,9 @@ namespace DataLayer
             => bookList
                 .Where(
                     lb =>
-                        lb.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
-                        || lb.Book.UserDefinedItem.PdfStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
+                        !lb.AbsentFromLastScan &&
+                        (lb.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
+                        || lb.Book.UserDefinedItem.PdfStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload)
                     );
     }
 }

Source/DtoImporterService/ImportItem.cs

@@ -8,5 +8,7 @@ namespace DtoImporterService
 		public Item DtoItem { get; set; }
 		public string AccountId { get; set; }
 		public string LocaleName { get; set; }
+		public override string ToString()
+			=> DtoItem is null ? base.ToString() : $"[{DtoItem.ProductId}] {DtoItem.Title}";
 	}
 }

Source/DtoImporterService/LibraryBookImporter.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using AudibleUtilities;
 using DataLayer;
+using Dinah.Core;
 using Dinah.Core.Collections.Generic;
 
 namespace DtoImporterService
@@ -40,9 +41,8 @@ namespace DtoImporterService
 			//
 			// CURRENT SOLUTION: don't re-insert
 
-			var currentLibraryProductIds = DbContext.LibraryBooks.Select(l => l.Book.AudibleProductId).ToList();
 			var newItems = importItems
-				.Where(dto => !currentLibraryProductIds.Contains(dto.DtoItem.ProductId))
+				.ExceptBy(DbContext.LibraryBooks.Select(lb => lb.Book.AudibleProductId), imp => imp.DtoItem.ProductId)
 				.ToList();
 
 			// if 2 accounts try to import the same book in the same transaction: error since we're only tracking and pulling by asin.
@@ -55,7 +55,11 @@ namespace DtoImporterService
 				var libraryBook = new LibraryBook(
 					bookImporter.Cache[newItem.DtoItem.ProductId],
 					newItem.DtoItem.DateAdded,
-					newItem.AccountId);
+					newItem.AccountId)
+				{
+					AbsentFromLastScan = isPlusTitleUnavailable(newItem)
+				};
+
 				try
 				{
 					DbContext.LibraryBooks.Add(libraryBook);
@@ -66,8 +70,29 @@ namespace DtoImporterService
 				}
 			}
 
+			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;
+
+			//Join importItems on LibraryBooks before iterating over LibraryBooks to avoid
+			//quadratic complexity caused by searching all of importItems for each LibraryBook.
+			//Join uses hashing, so complexity should approach O(N) instead of O(N^2).
+			var items_lbs
+			   = importItems
+			   .Join(DbContext.LibraryBooks, o => (o.AccountId, o.DtoItem.ProductId), i => (i.Account, i.Book?.AudibleProductId), (o, i) => (o, i));
+
+			foreach ((ImportItem item, LibraryBook lb) in items_lbs)
+				lb.AbsentFromLastScan = isPlusTitleUnavailable(item);
+
 			var qtyNew = hash.Count;
 			return qtyNew;
 		}
+
+		private static bool isPlusTitleUnavailable(ImportItem item)
+			=> item.DtoItem.IsAyce is true
+			&& item.DtoItem.Plans?.Any(p => p.IsAyce) is not true;
 	}
 }

Source/FileLiberator/AudioDecodable.cs

@@ -17,10 +17,14 @@ namespace FileLiberator
 
         protected LameConfig GetLameOptions(Configuration config)
         {
-            LameConfig lameConfig = new();
-            lameConfig.Mode = MPEGMode.Mono;
+			LameConfig lameConfig = new()
+			{
+				Mode = MPEGMode.Mono,
+				Quality = config.LameEncoderQuality,
+                OutputSampleRate = (int)config.MaxSampleRate
+			};
 
-            if (config.LameTargetBitrate)
+			if (config.LameTargetBitrate)
             {
                 if (config.LameConstantBitrate)
                     lameConfig.BitRate = config.LameBitrate;

Source/FileLiberator/ConvertToMp3.cs

@@ -103,20 +103,20 @@ namespace FileLiberator
 		{
 			averageSpeed.AddPosition(e.ProcessPosition.TotalSeconds);
 
-			var remainingTimeToProcess = (e.TotalDuration - e.ProcessPosition).TotalSeconds;
+			var remainingTimeToProcess = (e.EndTime - e.ProcessPosition).TotalSeconds;
 			var estTimeRemaining = remainingTimeToProcess / averageSpeed.Average;
 
 			if (double.IsNormal(estTimeRemaining))
 				OnStreamingTimeRemaining(TimeSpan.FromSeconds(estTimeRemaining));
 
-			double progressPercent = 100 * e.ProcessPosition.TotalSeconds / e.TotalDuration.TotalSeconds;
+			double progressPercent = 100 * e.FractionCompleted;
 
 			OnStreamingProgressChanged(
 				new DownloadProgress
 				{
 					ProgressPercentage = progressPercent,
-					BytesReceived = (long)e.ProcessPosition.TotalSeconds,
-					TotalBytesToReceive = (long)e.TotalDuration.TotalSeconds
+					BytesReceived = (long)(e.ProcessPosition - e.StartTime).TotalSeconds,
+					TotalBytesToReceive = (long)(e.EndTime - e.StartTime).TotalSeconds
 				});
 		}
 	}

Source/FileLiberator/DownloadDecryptBook.cs

@@ -41,7 +41,7 @@ namespace FileLiberator
 
             OnBegin(libraryBook);
 
-            try
+			try
             {
                 if (libraryBook.Book.Audio_Exists())
                     return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
@@ -61,31 +61,30 @@ namespace FileLiberator
                 }
 
                 // decrypt failed
-                if (!success)
+                if (!success || getFirstAudioFile(entries) == default)
                 {
-                    foreach (var tmpFile in entries.Where(f => f.FileType != FileType.AAXC))
-                        FileUtility.SaferDelete(tmpFile.Path);
+                    await Task.WhenAll(
+                        entries
+                        .Where(f => f.FileType != FileType.AAXC)
+                        .Select(f => Task.Run(() => FileUtility.SaferDelete(f.Path))));
 
-                    return abDownloader?.IsCanceled == true ?
-                        new StatusHandler { "Cancelled" } :
-                        new StatusHandler { "Decrypt failed" };
+                    return
+                        abDownloader?.IsCanceled is true
+                        ? new StatusHandler { "Cancelled" }
+                        : new StatusHandler { "Decrypt failed" };
                 }
 
-                // moves new files from temp dir to final dest.
-                // This could take a few seconds if moving hundreds of files.
-                var finalStorageDir = await Task.Run(() => moveFilesToBooksDir(libraryBook, entries));
+                var finalStorageDir = getDestinationDirectory(libraryBook);
 
-                // decrypt failed
-                if (finalStorageDir is null)
-                    return new StatusHandler { "Cannot find final audio file after decryption" };
+				Task[] finalTasks = new[]
+                {
+					Task.Run(() => downloadCoverArt(libraryBook)),
+					Task.Run(() => moveFilesToBooksDir(libraryBook, entries)),
+					Task.Run(() => libraryBook.Book.UpdateBookStatus(LiberatedStatus.Liberated, Configuration.LibationVersion)),
+					Task.Run(() => WindowsDirectory.SetCoverAsFolderIcon(libraryBook.Book.PictureId, finalStorageDir))
+				};
 
-                if (Configuration.Instance.DownloadCoverArt)
-                    downloadCoverArt(libraryBook);
-
-                // contains logic to check for config setting and OS
-                WindowsDirectory.SetCoverAsFolderIcon(pictureId: libraryBook.Book.PictureId, directory: finalStorageDir);
-
-                libraryBook.Book.UpdateBookStatus(LiberatedStatus.Liberated);
+				await Task.WhenAll(finalTasks);
 
                 return new StatusHandler();
             }
@@ -131,8 +130,8 @@ namespace FileLiberator
             abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
             abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
 
-            // REAL WORK DONE HERE
-            return await abDownloader.RunAsync();
+			// REAL WORK DONE HERE
+			return await abDownloader.RunAsync();
         }
 
         private DownloadOptions BuildDownloadOptions(LibraryBook libraryBook, Configuration config, AudibleApi.Common.ContentLicense contentLic)
@@ -335,18 +334,12 @@ namespace FileLiberator
 
         /// <summary>Move new files to 'Books' directory</summary>
         /// <returns>Return directory if audiobook file(s) were successfully created and can be located on disk. Else null.</returns>
-        private static string moveFilesToBooksDir(LibraryBook libraryBook, List<FilePathCache.CacheEntry> entries)
+        private static void moveFilesToBooksDir(LibraryBook libraryBook, List<FilePathCache.CacheEntry> entries)
         {
             // create final directory. move each file into it
-            var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
-            Directory.CreateDirectory(destinationDir);
+            var destinationDir = getDestinationDirectory(libraryBook);
 
-            FilePathCache.CacheEntry getFirstAudio() => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
-
-            if (getFirstAudio() == default)
-                return null;
-
-            for (var i = 0; i < entries.Count; i++)
+			for (var i = 0; i < entries.Count; i++)
             {
                 var entry = entries[i];
 
@@ -357,22 +350,33 @@ namespace FileLiberator
                 entries[i] = entry with { Path = realDest };
             }
 
-            var cue = entries.FirstOrDefault(f => f.FileType == FileType.Cue);
+			var cue = entries.FirstOrDefault(f => f.FileType == FileType.Cue);
             if (cue != default)
-                Cue.UpdateFileName(cue.Path, getFirstAudio().Path);
+                Cue.UpdateFileName(cue.Path, getFirstAudioFile(entries).Path);
 
             AudibleFileStorage.Audio.Refresh();
-
-            return destinationDir;
         }
 
-        private static void downloadCoverArt(LibraryBook libraryBook)
+        private static string getDestinationDirectory(LibraryBook libraryBook)
         {
+			var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
+            if (!Directory.Exists(destinationDir))
+                Directory.CreateDirectory(destinationDir);
+            return destinationDir;
+		}
+
+		private static FilePathCache.CacheEntry getFirstAudioFile(IEnumerable<FilePathCache.CacheEntry> entries)
+            => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
+
+		private static void downloadCoverArt(LibraryBook libraryBook)
+        {
+            if (!Configuration.Instance.DownloadCoverArt) return;
+
             var coverPath = "[null]";
 
             try
             {
-                var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
+                var destinationDir = getDestinationDirectory(libraryBook);
                 coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(libraryBook, ".jpg");
                 coverPath = Path.Combine(destinationDir, Path.GetFileName(coverPath));
 

Source/FileLiberator/DownloadOptions.cs

@@ -22,7 +22,7 @@ namespace FileLiberator
 		public OutputFormat OutputFormat { get; init; }
 		public ChapterInfo ChapterInfo { get; init; }
 		public NAudio.Lame.LameConfig LameConfig { get; init; }
-		public string UserAgent => AudibleApi.Resources.USER_AGENT;
+		public string UserAgent => AudibleApi.Resources.Download_User_Agent;
 		public bool TrimOutputToChapterLength => config.AllowLibationFixup && config.StripAudibleBrandAudio;
 		public bool StripUnabridged => config.AllowLibationFixup && config.StripUnabridged;
 		public bool CreateCueSheet => config.CreateCueSheet;

Source/FileManager/LogArchiver.cs

@@ -0,0 +1,77 @@
+using Dinah.Core;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FileManager
+{
+	public sealed class LogArchiver : IAsyncDisposable
+	{
+		public Encoding Encoding { get; set; }
+		public string FileName { get; }
+		private readonly ZipArchive archive;
+
+		public LogArchiver(string filename) : this(filename, Encoding.UTF8) { }
+		public LogArchiver(string filename, Encoding encoding)
+		{
+			FileName = ArgumentValidator.EnsureNotNull(filename, nameof(filename));
+			Encoding = ArgumentValidator.EnsureNotNull(encoding, nameof(encoding));
+			archive = new ZipArchive(File.Open(FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite), ZipArchiveMode.Update, false, Encoding);
+		}
+
+		public void DeleteOlderThan(DateTime cutoffDate)
+			=> DeleteEntries(archive.Entries.Where(e => e.LastWriteTime < cutoffDate).ToList());
+
+		public void DeleteOldestN(int quantity)
+			=> DeleteEntries(archive.Entries.OrderBy(e => e.LastWriteTime).Take(quantity).ToList());
+		
+		public void DeleteAllButNewestN(int quantity)
+			=> DeleteEntries(archive.Entries.OrderByDescending(e => e.LastWriteTime).Skip(quantity).ToList());
+		
+		private void DeleteEntries(List<ZipArchiveEntry> entries)
+		{
+			foreach (var e in entries)
+				e.Delete();
+		}
+
+		public async Task AddFileAsync(string name, JObject contents, string comment = null)
+		{
+			ArgumentValidator.EnsureNotNull(contents, nameof(contents));
+			await AddFileAsync(name, Encoding.GetBytes(contents.ToString(Newtonsoft.Json.Formatting.Indented)), comment);
+		}
+
+		public async Task AddFileAsync(string name, string contents, string comment = null)
+		{
+			ArgumentValidator.EnsureNotNull(contents, nameof(contents));
+			await AddFileAsync(name, Encoding.GetBytes(contents), comment);
+		}
+
+		public Task AddFileAsync(string name, ReadOnlyMemory<byte> contents, string comment = null)
+		{
+			ArgumentValidator.EnsureNotNull(name, nameof(name));
+
+			name = ReplacementCharacters.Barebones.ReplaceFilenameChars(name);
+			return Task.Run(() => AddfileInternal(name, contents.Span, comment));			
+		}
+
+		private readonly object lockObj = new();
+		private void AddfileInternal(string name, ReadOnlySpan<byte> contents, string comment)
+		{
+			lock (lockObj)
+			{
+				var entry = archive.CreateEntry(name, CompressionLevel.SmallestSize);
+
+				entry.Comment = comment;
+				using var entryStream = entry.Open();
+				entryStream.Write(contents);
+			}
+		}
+
+		public async ValueTask DisposeAsync() => await Task.Run(archive.Dispose);
+	}
+}

Source/HangoverAvalonia/HangoverAvalonia.csproj

@@ -21,13 +21,7 @@
 	</PropertyGroup>
 
   <PropertyGroup>
-    <!--
-    HACK FOR COMPILER BUG  2021-09-14. Hopefully will be fixed in future versions
-    - Not using SatelliteResourceLanguages will load all language packs: works
-    - Specifying 'en' semicolon 1 more should load 1 language pack: works
-    - Specifying only 'en' should load no language packs: broken, still loads all
-    -->
-    <SatelliteResourceLanguages>en;es</SatelliteResourceLanguages>
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -78,7 +72,7 @@
 		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.0.0-preview4" />
 		<PackageReference Include="Avalonia.ReactiveUI" Version="11.0.0-preview4" />
 		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.0-preview4" />
-		<PackageReference Include="XamlNameReferenceGenerator" Version="1.5.1" />
+		<PackageReference Include="XamlNameReferenceGenerator" Version="1.6.1" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\HangoverBase\HangoverBase.csproj" />

Source/HangoverWinForms/HangoverWinForms.csproj

@@ -16,13 +16,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <!--
-    HACK FOR COMPILER BUG  2021-09-14. Hopefully will be fixed in future versions
-    - Not using SatelliteResourceLanguages will load all language packs: works
-    - Specifying 'en' semicolon 1 more should load 1 language pack: works
-    - Specifying only 'en' should load no language packs: broken, still loads all
-    -->
-    <SatelliteResourceLanguages>en;es</SatelliteResourceLanguages>
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>
 
   <!--

Source/LibationAvalonia/App.axaml.cs

@@ -11,11 +11,13 @@ using System.Threading.Tasks;
 using System.Collections.Generic;
 using System.IO;
 using ApplicationServices;
+using Avalonia.Controls;
 
 namespace LibationAvalonia
 {
 	public class App : Application
 	{
+		public static Window MainWindow { get;private set; }
 		public static IBrush ProcessQueueBookFailedBrush { get; private set; }
 		public static IBrush ProcessQueueBookCompletedBrush { get; private set; }
 		public static IBrush ProcessQueueBookCancelledBrush { get; private set; }
@@ -213,7 +215,7 @@ namespace LibationAvalonia
 		private static void ShowMainWindow(IClassicDesktopStyleApplicationLifetime desktop)
 		{
 			var mainWindow = new MainWindow();
-			desktop.MainWindow = mainWindow;
+			desktop.MainWindow = MainWindow = mainWindow;
 			mainWindow.RestoreSizeAndLocation(Configuration.Instance);
 			mainWindow.OnLoad();
 			mainWindow.OnLibraryLoaded(LibraryTask.GetAwaiter().GetResult());

Source/LibationAvalonia/Assets/LibationStyles.xaml

@@ -8,6 +8,8 @@
 		<SolidColorBrush x:Key="ProcessQueueBookCancelledBrush" Color="Khaki" />
 		<SolidColorBrush x:Key="ProcessQueueBookDefaultBrush" Color="{StaticResource SystemAltHighColor}" />
 		<SolidColorBrush x:Key="ProcessQueueBookBorderBrush" Color="Gray" />
+		<SolidColorBrush x:Key="DisabledGrayBrush" Color="#60D3D3D3" />
+		
 	</Styles.Resources>
 	<Style Selector="TextBox[IsReadOnly=true]">
 		<Setter Property="Background" Value="LightGray" />

Source/LibationAvalonia/AvaloniaUtils.cs

@@ -1,8 +1,8 @@
 using Avalonia.Controls;
 using Avalonia.Media;
-using Avalonia.Threading;
-using System;
-using System.Threading;
+using Avalonia.Media.Imaging;
+using LibationAvalonia.Dialogs;
+using LibationFileManager;
 using System.Threading.Tasks;
 
 namespace LibationAvalonia
@@ -18,6 +18,25 @@ namespace LibationAvalonia
 			return defaultBrush;
 		}
 
+		public static Task<DialogResult> ShowDialogAsync(this DialogWindow dialogWindow, Window owner = null)
+			=> dialogWindow.ShowDialog<DialogResult>(owner ?? App.MainWindow);
+
 		public static Window GetParentWindow(this IControl control) => control.VisualRoot as Window;
+
+
+		private static Bitmap defaultImage;
+		public static Bitmap TryLoadImageOrDefault(byte[] picture, PictureSize defaultSize = PictureSize.Native)
+		{
+			try
+			{
+				using var ms = new System.IO.MemoryStream(picture);
+				return new Bitmap(ms);
+			}
+			catch
+			{
+				using var ms = new System.IO.MemoryStream(PictureStorage.GetDefaultImage(defaultSize));
+				return defaultImage ??= new Bitmap(ms);
+			}
+		}
 	}
 }

Source/LibationAvalonia/Controls/CheckedListBox.axaml

@@ -0,0 +1,30 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+			 mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="LibationAvalonia.Controls.CheckedListBox">
+	
+	<UserControl.Resources>
+		<RecyclePool x:Key="RecyclePool" />
+		<DataTemplate x:Key="queuedBook">
+			<CheckBox HorizontalAlignment="Stretch" Margin="10,0,0,0" Content="{Binding Item}" IsChecked="{Binding IsChecked, Mode=TwoWay}" />
+		</DataTemplate>
+		<RecyclingElementFactory x:Key="elementFactory" RecyclePool="{StaticResource RecyclePool}">
+			<RecyclingElementFactory.Templates>
+				<StaticResource x:Key="queuedBook" ResourceKey="queuedBook" />
+			</RecyclingElementFactory.Templates>
+		</RecyclingElementFactory>
+	</UserControl.Resources>
+
+	<ScrollViewer
+		Name="scroller"
+		HorizontalScrollBarVisibility="Disabled"
+		VerticalScrollBarVisibility="Auto">
+		<ItemsRepeater IsVisible="True"
+			VerticalCacheLength="1.2"
+			HorizontalCacheLength="1"
+			Items="{Binding CheckboxItems}"
+			ItemTemplate="{StaticResource elementFactory}" />
+	</ScrollViewer>
+</UserControl>

Source/LibationAvalonia/Controls/CheckedListBox.axaml.cs

@@ -0,0 +1,46 @@
+using Avalonia;
+using Avalonia.Collections;
+using Avalonia.Controls;
+using LibationAvalonia.ViewModels;
+using ReactiveUI;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace LibationAvalonia.Controls
+{
+	public partial class CheckedListBox : UserControl
+	{
+		public static readonly StyledProperty<AvaloniaList<CheckBoxViewModel>> ItemsProperty =
+		AvaloniaProperty.Register<CheckedListBox, AvaloniaList<CheckBoxViewModel>>(nameof(Items));
+
+		public AvaloniaList<CheckBoxViewModel> Items { get => GetValue(ItemsProperty); set => SetValue(ItemsProperty, value); }
+		private CheckedListBoxViewModel _viewModel = new();	
+
+		public CheckedListBox()
+		{
+			InitializeComponent();
+			scroller.DataContext = _viewModel;
+		}
+		protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
+		{
+			if (change.Property.Name == nameof(Items) && Items != null)
+				_viewModel.CheckboxItems = Items;
+			base.OnPropertyChanged(change);
+		}
+
+		private class CheckedListBoxViewModel : ViewModelBase
+		{
+			private AvaloniaList<CheckBoxViewModel> _checkboxItems;
+			public AvaloniaList<CheckBoxViewModel> CheckboxItems { get => _checkboxItems; set => this.RaiseAndSetIfChanged(ref _checkboxItems, value); }
+		}
+	}
+
+	public class CheckBoxViewModel : ViewModelBase
+	{
+		private bool _isChecked;
+		public bool IsChecked { get => _isChecked; set => this.RaiseAndSetIfChanged(ref _isChecked, value); }
+		private object _bookText;
+		public object Item { get => _bookText; set => this.RaiseAndSetIfChanged(ref _bookText, value); }
+	}
+}

Source/LibationAvalonia/Controls/DataGridCheckBoxColumnExt.cs

@@ -1,17 +1,15 @@
 using Avalonia.Controls;
-using LibationAvalonia.ViewModels;
-using System;
-using System.Linq;
+using LibationUiBase.GridView;
 
 namespace LibationAvalonia.Controls
 {
-	public class DataGridCheckBoxColumnExt : DataGridCheckBoxColumn
+    public class DataGridCheckBoxColumnExt : DataGridCheckBoxColumn
 	{
 		protected override IControl GenerateEditingElementDirect(DataGridCell cell, object dataItem)
 		{
 			//Only SeriesEntry types have three-state checks, individual LibraryEntry books are binary.
 			var ele = base.GenerateEditingElementDirect(cell, dataItem) as CheckBox;
-			ele.IsThreeState = dataItem is SeriesEntry;
+			ele.IsThreeState = dataItem is ISeriesEntry;
 			return ele;
 		}
 	}

Source/LibationAvalonia/Controls/DataGridContextMenus.cs

@@ -1,6 +1,6 @@
 using Avalonia.Collections;
 using Avalonia.Controls;
-using LibationAvalonia.ViewModels;
+using LibationUiBase.GridView;
 using System;
 using System.Reflection;
 
@@ -30,7 +30,7 @@ namespace LibationAvalonia.Controls
 
 		private static void Cell_ContextRequested(object sender, ContextRequestedEventArgs e)
 		{
-			if (sender is DataGridCell cell && cell.DataContext is GridEntry entry)
+			if (sender is DataGridCell cell && cell.DataContext is IGridEntry entry)
 			{
 				var args = new DataGridCellContextMenuStripNeededEventArgs
 				{
@@ -63,7 +63,7 @@ namespace LibationAvalonia.Controls
 
 		public string CellClipboardContents => GetCellValue(Column, GridEntry);
 		public DataGridColumn Column { get; init; }
-		public GridEntry GridEntry { get; init; }
+		public IGridEntry GridEntry { get; init; }
 		public ContextMenu ContextMenu { get; init; }
 		public AvaloniaList<Control> ContextMenuItems
 			=> ContextMenu.Items as AvaloniaList<Control>;

Source/LibationAvalonia/Controls/DataGridMyRatingColumn.cs

@@ -1,5 +1,6 @@
 using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Data;
 using Avalonia.Interactivity;
 using DataLayer;
 using ReactiveUI;
@@ -7,19 +8,10 @@ using System;
 
 namespace LibationAvalonia.Controls
 {
-	public class StarStringConverter : Avalonia.Data.Converters.IValueConverter
-	{
-		public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
-			=> value is Rating rating ? rating.ToStarString() : string.Empty;
-
-		public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
-			=> throw new NotImplementedException();
-	}
-
 	public class DataGridMyRatingColumn : DataGridBoundColumn
 	{
-		[Avalonia.Data.AssignBinding]
-		public Avalonia.Data.IBinding BackgroundBinding { get; set; }
+		[AssignBinding] public IBinding BackgroundBinding { get; set; }
+		[AssignBinding] public IBinding OpacityBinding { get; set; }
 		private static Rating DefaultRating => new Rating(0, 0, 0);
 		public DataGridMyRatingColumn()
 		{
@@ -40,13 +32,11 @@ namespace LibationAvalonia.Controls
 				ToolTip.SetTip(myRatingElement, "Click to change ratings");
 
 			if (Binding != null)
-			{
 				myRatingElement.Bind(BindingTarget, Binding);
-			}
 			if (BackgroundBinding != null)
-			{
 				myRatingElement.Bind(MyRatingCellEditor.BackgroundProperty, BackgroundBinding);
-			}
+			if (OpacityBinding != null)
+				myRatingElement.Bind(MyRatingCellEditor.OpacityProperty, OpacityBinding);
 
 			return myRatingElement;
 		}
@@ -58,10 +48,11 @@ namespace LibationAvalonia.Controls
 				Name = "CellMyRatingEditor",
 				IsEditingMode = true
 			};
+
 			if (BackgroundBinding != null)
-			{
 				myRatingElement.Bind(MyRatingCellEditor.BackgroundProperty, BackgroundBinding);
-			}
+			if (OpacityBinding != null)
+				myRatingElement.Bind(MyRatingCellEditor.OpacityProperty, OpacityBinding);
 
 			return myRatingElement;
 		}

Source/LibationAvalonia/Dialogs/AccountsDialog.axaml

@@ -36,6 +36,7 @@
 								Width="60"
 								Height="30"
 								Content="X"
+								HorizontalContentAlignment="Center"
 								IsEnabled="{Binding !IsDefault}"
 								Click="DeleteButton_Clicked" />
 

Source/LibationAvalonia/Dialogs/BookDetailsDialog.axaml.cs

@@ -1,5 +1,4 @@
 using ApplicationServices;
-using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 using Avalonia.Media.Imaging;
@@ -10,7 +9,6 @@ using LibationAvalonia.ViewModels;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
-using System;
 
 namespace LibationAvalonia.Dialogs
 {
@@ -112,8 +110,7 @@ namespace LibationAvalonia.Dialogs
 
 				//init cover image
 				var picture = PictureStorage.GetPictureSynchronously(new PictureDefinition(libraryBook.Book.PictureId, PictureSize._80x80));
-				using var ms = new System.IO.MemoryStream(picture);
-				Cover = new Bitmap(ms);
+				Cover = AvaloniaUtils.TryLoadImageOrDefault(picture, PictureSize._80x80);
 
 				//init book details
 				DetailsText = @$"

Source/LibationAvalonia/Dialogs/ImageDisplayDialog.axaml.cs

@@ -1,11 +1,7 @@
-using Avalonia;
-using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 using Avalonia.Media.Imaging;
-using Avalonia.Platform;
 using System;
 using System.ComponentModel;
-using System.IO;
 using ReactiveUI;
 using Avalonia.Platform.Storage;
 
@@ -16,23 +12,8 @@ namespace LibationAvalonia.Dialogs
 		public string PictureFileName { get; set; }
 		public string BookSaveDirectory { get; set; }
 
-		private byte[] _coverBytes;
-		public byte[] CoverBytes
-		{
-			get => _coverBytes;
-			set
-			{
-				_coverBytes = value;
-				var ms = new MemoryStream(_coverBytes);
-				ms.Position = 0;
-				_bitmapHolder.CoverImage = new Bitmap(ms);
-			}
-		}
-
-
 		private readonly BitmapHolder _bitmapHolder = new BitmapHolder();
 
-
 		public ImageDisplayDialog()
 		{
 			InitializeComponent();
@@ -45,6 +26,11 @@ namespace LibationAvalonia.Dialogs
 			AvaloniaXamlLoader.Load(this);
 		}
 
+		public void SetCoverBytes(byte[] cover)
+		{
+			_bitmapHolder.CoverImage = AvaloniaUtils.TryLoadImageOrDefault(cover);
+		}
+
 		public async void SaveImage_Clicked(object sender, Avalonia.Interactivity.RoutedEventArgs e)
 		{
 			var options = new FilePickerSaveOptions
@@ -70,7 +56,7 @@ namespace LibationAvalonia.Dialogs
 
 			try
 			{
-				File.WriteAllBytes(uri.LocalPath, CoverBytes);
+				_bitmapHolder.CoverImage.Save(uri.LocalPath);
 			}
 			catch (Exception ex)
 			{

Source/LibationAvalonia/Dialogs/Login/AvaloniaLoginBase.cs

@@ -1,22 +0,0 @@
-using Avalonia;
-using Avalonia.Controls.ApplicationLifetimes;
-using System;
-using System.Threading.Tasks;
-
-namespace LibationAvalonia.Dialogs.Login
-{
-	public abstract class AvaloniaLoginBase
-	{
-
-		/// <returns>True if ShowDialog's DialogResult == OK</returns>
-		protected static async Task<bool> ShowDialog(DialogWindow dialog)
-		{
-			if (Application.Current.ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime desktop)
-				return false;
-
-			var result = await dialog.ShowDialog<DialogResult>(desktop.MainWindow);
-			Serilog.Log.Logger.Debug("{@DebugInfo}", new { DialogResult = result });
-			return result == DialogResult.OK;
-		}
-	}
-}

Source/LibationAvalonia/Dialogs/Login/AvaloniaLoginCallback.cs

@@ -5,36 +5,38 @@ using AudibleUtilities;
 
 namespace LibationAvalonia.Dialogs.Login
 {
-	public class AvaloniaLoginCallback : AvaloniaLoginBase, ILoginCallback
+	public class AvaloniaLoginCallback : ILoginCallback
 	{
 		private Account _account { get; }
 
+		public string DeviceName { get; } = "Libation";
+
 		public AvaloniaLoginCallback(Account account)
 		{
 			_account = Dinah.Core.ArgumentValidator.EnsureNotNull(account, nameof(account));
 		}
 
-		public async Task<string> Get2faCodeAsync()
+		public async Task<string> Get2faCodeAsync(string prompt)
 		{
-			var dialog = new _2faCodeDialog();
-			if (await ShowDialog(dialog))
+			var dialog = new _2faCodeDialog(prompt);
+			if (await dialog.ShowDialogAsync() is DialogResult.OK)
 				return dialog.Code;
 
 			return null;
 		}
 
-		public async Task<string> GetCaptchaAnswerAsync(byte[] captchaImage)
+		public async Task<(string password, string guess)> GetCaptchaAnswerAsync(string password, byte[] captchaImage)
 		{
-			var dialog = new CaptchaDialog(captchaImage);
-			if (await ShowDialog(dialog))
-				return dialog.Answer;
-			return null;
+			var dialog = new CaptchaDialog(password, captchaImage);
+			if (await dialog.ShowDialogAsync() is DialogResult.OK)
+				return (dialog.Password, dialog.Answer);
+			return (null, null);
 		}
 
 		public async Task<(string name, string value)> GetMfaChoiceAsync(MfaConfig mfaConfig)
 		{
 			var dialog = new MfaDialog(mfaConfig);
-			if (await ShowDialog(dialog))
+			if (await dialog.ShowDialogAsync() is DialogResult.OK)
 				return (dialog.SelectedName, dialog.SelectedValue);
 			return (null, null);
 		}
@@ -42,7 +44,7 @@ namespace LibationAvalonia.Dialogs.Login
 		public async Task<(string email, string password)> GetLoginAsync()
 		{
 			var dialog = new LoginCallbackDialog(_account);
-			if (await ShowDialog(dialog))
+			if (await dialog.ShowDialogAsync() is DialogResult.OK)
 				return (_account.AccountId, dialog.Password);
 			return (null, null);
 		}
@@ -50,7 +52,7 @@ namespace LibationAvalonia.Dialogs.Login
 		public async Task ShowApprovalNeededAsync()
 		{
 			var dialog = new ApprovalNeededDialog();
-			await ShowDialog(dialog);
+			await dialog.ShowDialogAsync();
 		}
 	}
 }

Source/LibationAvalonia/Dialogs/Login/AvaloniaLoginChoiceEager.cs

@@ -5,14 +5,15 @@ using AudibleUtilities;
 
 namespace LibationAvalonia.Dialogs.Login
 {
-	public class AvaloniaLoginChoiceEager : AvaloniaLoginBase, ILoginChoiceEager
+	public class AvaloniaLoginChoiceEager : ILoginChoiceEager
 	{
 		/// <summary>Convenience method. Recommended when wiring up Winforms to <see cref="ApplicationServices.LibraryCommands.ImportAccountAsync"/></summary>
-		public static async Task<ApiExtended> ApiExtendedFunc(Account account) => await ApiExtended.CreateAsync(account, new AvaloniaLoginChoiceEager(account));
+		public static async Task<ApiExtended> ApiExtendedFunc(Account account)
+			=> await ApiExtended.CreateAsync(account, new AvaloniaLoginChoiceEager(account));
 
-		public ILoginCallback LoginCallback { get; private set; }
+		public ILoginCallback LoginCallback { get; }
 
-		private Account _account { get; }
+		private readonly Account _account;
 
 		public AvaloniaLoginChoiceEager(Account account)
 		{
@@ -24,10 +25,9 @@ namespace LibationAvalonia.Dialogs.Login
 		{
 			var dialog = new LoginChoiceEagerDialog(_account);
 
-			if (!await ShowDialog(dialog))
+			if (await dialog.ShowDialogAsync() is not DialogResult.OK)
 				return null;
 
-
 			switch (dialog.LoginMethod)
 			{
 				case LoginMethod.Api:
@@ -35,7 +35,7 @@ namespace LibationAvalonia.Dialogs.Login
 				case LoginMethod.External:
 					{
 						var externalDialog = new LoginExternalDialog(_account, choiceIn.LoginUrl);
-						return await ShowDialog(externalDialog)
+						return await externalDialog.ShowDialogAsync() is DialogResult.OK
 							? ChoiceOut.External(externalDialog.ResponseUrl)
 							: null;
 					}

Source/LibationAvalonia/Dialogs/Login/CaptchaDialog.axaml

@@ -2,22 +2,22 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" d:DesignWidth="220" d:DesignHeight="180"
-		MinWidth="220" MinHeight="180"
-		MaxWidth="220" MaxHeight="180"
+        mc:Ignorable="d" d:DesignWidth="220" d:DesignHeight="250"
+		MinWidth="220" MinHeight="250"
+		MaxWidth="220" MaxHeight="250"
         x:Class="LibationAvalonia.Dialogs.Login.CaptchaDialog"
         Title="CAPTCHA"
 		Icon="/Assets/libation.ico">
 
 	<Grid
-		RowDefinitions="Auto,Auto,*"
-		ColumnDefinitions="Auto,*">
+		RowDefinitions="Auto,Auto,Auto,Auto,*"
+		ColumnDefinitions="Auto,*" 
+			Margin="10">
 		
 		<Panel
 			Grid.Row="0"
 			Grid.Column="0"
 			Grid.ColumnSpan="2"
-			Margin="10"
 			MinWidth="200"
 			MinHeight="70"
 			Background="LightGray">
@@ -30,23 +30,40 @@
 		
 		<TextBlock
 			Grid.Row="1"
+			Margin="0,10,0,0"
+			VerticalAlignment="Center"
+			Text="Password:" />
+
+		<TextBox
+			Name="passwordBox"
+			Grid.Row="2"
 			Grid.Column="0"
-			Margin="10,0,10,0"
+			Grid.ColumnSpan="2"
+			Margin="0,10,0,0"
+			PasswordChar="*"
+			Text="{Binding Password, Mode=TwoWay}" />
+		
+		<TextBlock
+			Grid.Row="3"
+			Grid.Column="0"
+			Margin="0,10,10,0"
 			VerticalAlignment="Center"
 			Text="CAPTCHA&#xa;answer:" />
 		
 		<TextBox
-			Grid.Row="1"
+			Name="captchaBox"
+			Grid.Row="3"
 			Grid.Column="1"
-			Margin="10,0,10,0" Text="{Binding Answer}" />
+			Margin="0,10,0,0"
+			Text="{Binding Answer, Mode=TwoWay}" />
 		
 		<Button
-			Grid.Row="2"
+			Grid.Row="4"
 			Grid.Column="1"
-			Margin="10"
 			Padding="0,5,0,5"
 			VerticalAlignment="Bottom"
 			HorizontalAlignment="Stretch"
+			HorizontalContentAlignment="Center"
 			Content="Submit"
 			Click="Submit_Click" />
 		

Source/LibationAvalonia/Dialogs/Login/CaptchaDialog.axaml.cs

@@ -1,5 +1,8 @@
+using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 using Avalonia.Media.Imaging;
+using LibationAvalonia.ViewModels;
+using ReactiveUI;
 using System.IO;
 using System.Threading.Tasks;
 
@@ -7,18 +10,43 @@ namespace LibationAvalonia.Dialogs.Login
 {
 	public partial class CaptchaDialog : DialogWindow
 	{
-		public string Answer { get; set; }
-		public Bitmap CaptchaImage { get; }
+		public string Password => _viewModel.Password;
+		public string Answer => _viewModel.Answer;
+
+		private readonly CaptchaDialogViewModel _viewModel;
 		public CaptchaDialog()
 		{
 			InitializeComponent();
+			passwordBox = this.FindControl<TextBox>(nameof(passwordBox));
+			captchaBox = this.FindControl<TextBox>(nameof(captchaBox));
 		}
 
-		public CaptchaDialog(byte[] captchaImage) :this()
+		public CaptchaDialog(string password, byte[] captchaImage) :this()
 		{
-			using var ms = new MemoryStream(captchaImage);
-			CaptchaImage = new Bitmap(ms);
-			DataContext = this;
+			//Avalonia doesn't support animated gifs.
+			//Deconstruct gifs into frames and manually switch them.
+			using var gif = SixLabors.ImageSharp.Image.Load(captchaImage);
+			var gifEncoder = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
+			var gifFrames = new Bitmap[gif.Frames.Count];
+			var frameDelayMs = new int[gif.Frames.Count];
+
+			for (int i = 0; i < gif.Frames.Count; i++)
+			{
+				var frameMetadata = gif.Frames[i].Metadata.GetFormatMetadata(SixLabors.ImageSharp.Formats.Gif.GifFormat.Instance);
+
+                using var clonedFrame = gif.Frames.CloneFrame(i);
+				using var framems = new MemoryStream();
+
+				clonedFrame.Save(framems, gifEncoder);
+				framems.Position = 0;
+
+				gifFrames[i] = new Bitmap(framems);
+				frameDelayMs[i] = frameMetadata.FrameDelay * 10;
+			}
+
+			DataContext = _viewModel = new(password, gifFrames, frameDelayMs);
+
+			Opened += (_, _) => (string.IsNullOrEmpty(password) ? passwordBox : captchaBox).Focus();
 		}
 
 		private void InitializeComponent()
@@ -26,15 +54,73 @@ namespace LibationAvalonia.Dialogs.Login
 			AvaloniaXamlLoader.Load(this);
 		}
 
-
-		protected override Task SaveAndCloseAsync()
+		protected override async Task SaveAndCloseAsync()
 		{
-			Serilog.Log.Logger.Information("Submit button clicked: {@DebugInfo}", new { Answer });
+			if (string.IsNullOrWhiteSpace(_viewModel.Password))
+			{
+				await MessageBox.Show(this, "Please re-enter your password");
+				return;
+			}
 
-			return base.SaveAndCloseAsync();
+			Serilog.Log.Logger.Information("Submit button clicked: {@DebugInfo}", new { _viewModel.Answer });
+
+			await _viewModel.StopAsync();
+			await base.SaveAndCloseAsync();
+		}
+
+		protected override async Task CancelAndCloseAsync()
+		{
+			await _viewModel.StopAsync();
+			await base.CancelAndCloseAsync();	
 		}
 
 		public async void Submit_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
 			=> await SaveAndCloseAsync();
 	}
+
+	public class CaptchaDialogViewModel : ViewModelBase
+	{
+		public string Answer { get; set; }
+		public string Password { get; set; }
+		public Bitmap CaptchaImage { get => _captchaImage; private set => this.RaiseAndSetIfChanged(ref _captchaImage, value); }
+
+		private Bitmap _captchaImage;
+		private bool keepSwitching = true;
+		private readonly Task FrameSwitch;
+
+		public CaptchaDialogViewModel(string password, Bitmap[] gifFrames, int[] frameDelayMs)
+		{
+			Password = password;
+			if (gifFrames.Length == 1)
+			{
+				FrameSwitch = Task.CompletedTask;
+				CaptchaImage = gifFrames[0];
+			}
+			else
+			{
+				FrameSwitch = SwitchFramesAsync(gifFrames, frameDelayMs);
+			}
+		}
+
+		public async Task StopAsync()
+		{
+			keepSwitching = false;
+			await FrameSwitch;
+		}
+
+		private async Task SwitchFramesAsync(Bitmap[] gifFrames, int[] frameDelayMs)
+		{
+			int index = 0;
+			while(keepSwitching)
+			{
+				CaptchaImage = gifFrames[index];
+				await Task.Delay(frameDelayMs[index++]);
+
+				index %= gifFrames.Length;
+			}
+
+			foreach (var frame in gifFrames)
+				frame.Dispose();
+		}
+	}
 }

Source/LibationAvalonia/Dialogs/Login/LoginExternalDialog.axaml.cs

@@ -1,4 +1,3 @@
-using AudibleApi;
 using AudibleUtilities;
 using Avalonia;
 using Avalonia.Controls;
@@ -49,7 +48,7 @@ namespace LibationAvalonia.Dialogs.Login
 		protected override async Task SaveAndCloseAsync()
 		{
 			Serilog.Log.Logger.Information("Submit button clicked: {@DebugInfo}", new { ResponseUrl });
-			if (!Uri.TryCreate(ResponseUrl, UriKind.Absolute, out var result))
+			if (!Uri.TryCreate(ResponseUrl, UriKind.Absolute, out _))
 			{
 				await MessageBox.Show("Invalid response URL");
 				return;

Source/LibationAvalonia/Dialogs/Login/MfaDialog.axaml

@@ -2,9 +2,9 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="160"
-		MinWidth="400" MinHeight="160"
-		MaxWidth="400" MaxHeight="160"
+        mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="200"
+		MinWidth="400" MinHeight="200"
+		MaxWidth="400" MaxHeight="200"
         x:Class="LibationAvalonia.Dialogs.Login.MfaDialog"
         Title="Two-Step Verification"
 		Icon="/Assets/libation.ico">

Source/LibationAvalonia/Dialogs/Login/_2faCodeDialog.axaml

@@ -2,30 +2,41 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" d:DesignWidth="140" d:DesignHeight="100"
-		MinWidth="140" MinHeight="100"
-		MaxWidth="140" MaxHeight="100"
+        mc:Ignorable="d" d:DesignWidth="200" d:DesignHeight="200"
+		MinWidth="200" MinHeight="200"
+		MaxWidth="200" MaxHeight="200"
         x:Class="LibationAvalonia.Dialogs.Login._2faCodeDialog"
         Title="2FA Code"
 		Icon="/Assets/libation.ico">
 	
-	<Grid RowDefinitions="Auto,Auto,*">
+	<Grid
+		VerticalAlignment="Stretch"
+		ColumnDefinitions="*" Margin="5"
+		RowDefinitions="*,Auto,Auto,Auto">
+		
+		<TextBlock
+			TextAlignment="Center"
+			TextWrapping="Wrap"
+			Text="{Binding Prompt}" />
 		
 		<TextBlock
 			Margin="5"
+			Grid.Row="1"
 			TextAlignment="Center"
 			Text="Enter 2FA Code" />
-		
+
 		<TextBox
+			Name="_2FABox"
 			Margin="5,0,5,0"
-			Grid.Row="1"
+			Grid.Row="2"
+			HorizontalContentAlignment="Center"
 			Text="{Binding Code, Mode=TwoWay}" />
 		
 		<Button
 			Margin="5"
-			Grid.Row="2"
-			VerticalAlignment="Bottom"
+			Grid.Row="3"
 			HorizontalAlignment="Stretch"
+			HorizontalContentAlignment="Center"
 			Content="Submit"
 			Click="Submit_Click" />
 	</Grid>

Source/LibationAvalonia/Dialogs/Login/_2faCodeDialog.axaml.cs

@@ -1,4 +1,3 @@
-using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 using System.Threading.Tasks;
@@ -8,16 +7,20 @@ namespace LibationAvalonia.Dialogs.Login
 	public partial class _2faCodeDialog : DialogWindow
 	{
 		public string Code { get; set; }
+		public string Prompt { get; } = "For added security, please enter the One Time Password (OTP) generated by your Authenticator App";
+
 
 		public _2faCodeDialog()
 		{
-			InitializeComponent();
-			DataContext = this;
+			AvaloniaXamlLoader.Load(this);
+			_2FABox = this.FindControl<TextBox>(nameof(_2FABox));
 		}
 
-		private void InitializeComponent()
+		public _2faCodeDialog(string prompt) : this()
 		{
-			AvaloniaXamlLoader.Load(this);
+			Prompt = prompt;
+			DataContext = this;
+			Opened += (_, _) => _2FABox.Focus();
 		}
 
 		protected override Task SaveAndCloseAsync()

Source/LibationAvalonia/Dialogs/SettingsDialog.axaml

@@ -2,8 +2,8 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" d:DesignWidth="850" d:DesignHeight="620"
-		MinWidth="800" MinHeight="620"
+        mc:Ignorable="d" d:DesignWidth="900" d:DesignHeight="750"
+		MinWidth="900" MinHeight="700"
         x:Class="LibationAvalonia.Dialogs.SettingsDialog"
         xmlns:controls="clr-namespace:LibationAvalonia.Controls"
         Title="Edit Settings"
@@ -376,7 +376,7 @@
 							Grid.Row="3"
 							Margin="5"
 							VerticalAlignment="Top"
-							IsVisible="{Binding IsWindows}"
+							IsVisible="{Binding !IsLinux}"
 							IsChecked="{Binding DownloadDecryptSettings.UseCoverAsFolderIcon, Mode=TwoWay}">
 
 							<TextBlock
@@ -603,6 +603,25 @@
 										</CheckBox>
 									</Grid>
 
+									<Grid Margin="5,5,5,0" RowDefinitions="Auto,Auto" ColumnDefinitions="Auto,*,Auto">
+
+										<TextBlock Margin="0,0,0,5" Text="Max audio sample rate:" />
+										<controls:WheelComboBox
+											Grid.Row="1"
+											HorizontalAlignment="Stretch"
+											Items="{Binding AudioSettings.SampleRates}"
+											SelectedItem="{Binding AudioSettings.SelectedSampleRate, Mode=TwoWay}"/>
+										
+										<TextBlock Margin="0,0,0,5" Grid.Column="2" Text="Encoder Quality:" />
+										
+										<controls:WheelComboBox
+											Grid.Column="2"
+											Grid.Row="1"
+											HorizontalAlignment="Stretch"
+											Items="{Binding AudioSettings.EncoderQualities}"
+											SelectedItem="{Binding AudioSettings.SelectedEncoderQuality, Mode=TwoWay}"/>
+									</Grid>
+
 									<controls:GroupBox
 										Margin="5,5,5,0"
 										BorderWidth="1"

Source/LibationAvalonia/Dialogs/SettingsDialog.axaml.cs

@@ -11,6 +11,7 @@ using System.Linq;
 using FileManager;
 using System.IO;
 using Avalonia.Collections;
+using LibationUiBase;
 
 namespace LibationAvalonia.Dialogs
 {
@@ -107,7 +108,8 @@ namespace LibationAvalonia.Dialogs
 			LoadSettings(config);
 		}
 
-		public bool IsWindows => AppScaffolding.LibationScaffolding.ReleaseIdentifier is AppScaffolding.ReleaseIdentifier.WindowsAvalonia;
+		public bool IsLinux => Configuration.IsLinux;
+		public bool IsWindows => Configuration.IsWindows;
 		public ImportantSettings ImportantSettings { get; private set; }
 		public ImportSettings ImportSettings { get; private set; }
 		public DownloadDecryptSettings DownloadDecryptSettings { get; private set; }
@@ -372,6 +374,31 @@ namespace LibationAvalonia.Dialogs
 		private int _lameBitrate;
 		private int _lameVBRQuality;
 		private string _chapterTitleTemplate;
+		public SampleRateSelection SelectedSampleRate { get; set; }
+		public NAudio.Lame.EncoderQuality SelectedEncoderQuality { get; set; }
+
+		public AvaloniaList<SampleRateSelection> SampleRates { get; }
+			= new(
+				new []
+				{
+					AAXClean.SampleRate.Hz_44100,
+					AAXClean.SampleRate.Hz_32000,
+					AAXClean.SampleRate.Hz_24000,
+					AAXClean.SampleRate.Hz_22050,
+					AAXClean.SampleRate.Hz_16000,
+					AAXClean.SampleRate.Hz_12000,
+				}
+				.Select(s => new SampleRateSelection(s)));
+
+		public AvaloniaList<NAudio.Lame.EncoderQuality> EncoderQualities { get; }
+		= new(
+			new[]
+			{
+				NAudio.Lame.EncoderQuality.High,
+				NAudio.Lame.EncoderQuality.Standard,
+				NAudio.Lame.EncoderQuality.Fast,
+			});
+
 
 		public AudioSettings(Configuration config)
 		{
@@ -398,6 +425,9 @@ namespace LibationAvalonia.Dialogs
 			LameMatchSource = config.LameMatchSourceBR;
 			LameBitrate = config.LameBitrate;
 			LameVBRQuality = config.LameVBRQuality;
+
+			SelectedSampleRate = SampleRates.FirstOrDefault(s => s.SampleRate == config.MaxSampleRate);
+			SelectedEncoderQuality = config.LameEncoderQuality;
 		}
 
 		public Task<bool> SaveSettingsAsync(Configuration config)
@@ -422,6 +452,9 @@ namespace LibationAvalonia.Dialogs
 			config.LameBitrate = LameBitrate;
 			config.LameVBRQuality = LameVBRQuality;
 
+			config.LameEncoderQuality = SelectedEncoderQuality;
+			config.MaxSampleRate = SelectedSampleRate?.SampleRate ?? config.MaxSampleRate;
+
 			return Task.FromResult(true);
 		}
 

Source/LibationAvalonia/Dialogs/TrashBinDialog.axaml

@@ -0,0 +1,66 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="630" d:DesignHeight="480"
+        x:Class="LibationAvalonia.Dialogs.TrashBinDialog"
+		xmlns:controls="clr-namespace:LibationAvalonia.Controls"
+		MinWidth="630" MinHeight="480" 
+        Title="Trash Bin"
+		WindowStartupLocation="CenterOwner"
+		Icon="/Assets/libation.ico">
+	
+	<Grid
+		RowDefinitions="Auto,*,Auto">
+		
+		<TextBlock
+			Grid.Row="0"
+			Margin="5"
+			Text="Check books you want to permanently delete from or restore to Libation" />
+
+		<controls:CheckedListBox
+			Grid.Row="1"
+			Margin="5,0,5,0"
+			BorderThickness="1"
+			BorderBrush="Gray"
+			IsEnabled="{Binding	ControlsEnabled}"
+			Items="{Binding DeletedBooks}" />
+
+		<Grid
+			Grid.Row="2"
+			Margin="5"
+			ColumnDefinitions="Auto,Auto,*,Auto">
+
+			<CheckBox
+				IsEnabled="{Binding	ControlsEnabled}"
+				IsThreeState="True"
+				Margin="0,0,20,0"
+				IsChecked="{Binding EverythingChecked}"
+				Content="Everything" />
+			
+			<TextBlock
+				Grid.Column="1"
+				VerticalAlignment="Center"
+				Text="{Binding CheckedCountText}" />
+			
+			<Button
+				IsEnabled="{Binding	ControlsEnabled}"
+				Grid.Column="2"
+				Margin="0,0,20,0"
+				HorizontalAlignment="Right"
+				VerticalAlignment="Stretch"
+				VerticalContentAlignment="Center"
+				Content="Restore"
+				Click="Restore_Click" />
+			
+			<Button
+				IsEnabled="{Binding	ControlsEnabled}"
+				Grid.Column="3"
+				Click="EmptyTrash_Click" >
+				<TextBlock
+					TextAlignment="Center"
+					Text="Permanently Delete&#xa;from Libation" />
+			</Button>
+		</Grid>
+	</Grid>
+</Window>

Source/LibationAvalonia/Dialogs/TrashBinDialog.axaml.cs

@@ -0,0 +1,145 @@
+using ApplicationServices;
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Threading;
+using DataLayer;
+using LibationAvalonia.Controls;
+using LibationAvalonia.ViewModels;
+using LibationFileManager;
+using ReactiveUI;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace LibationAvalonia.Dialogs
+{
+	public partial class TrashBinDialog : Window
+	{
+		TrashBinViewModel _viewModel;
+
+		public TrashBinDialog()
+		{
+			InitializeComponent();
+			this.RestoreSizeAndLocation(Configuration.Instance);
+			DataContext = _viewModel = new();
+
+			this.Closing += (_,_) => this.SaveSizeAndLocation(Configuration.Instance);
+		}
+
+		public async void EmptyTrash_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
+			=> await _viewModel.PermanentlyDeleteCheckedAsync();
+		public async void Restore_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
+			=> await _viewModel.RestoreCheckedAsync();
+	}
+
+	public class TrashBinViewModel : ViewModelBase, IDisposable
+	{
+		public AvaloniaList<CheckBoxViewModel> DeletedBooks { get; }
+		public string CheckedCountText => $"Checked : {_checkedBooksCount} of {_totalBooksCount}";
+
+		private bool _controlsEnabled = true;
+		public bool ControlsEnabled { get => _controlsEnabled; set=> this.RaiseAndSetIfChanged(ref _controlsEnabled, value); }
+
+		private bool? everythingChecked = false;
+		public bool? EverythingChecked
+		{
+			get => everythingChecked;
+			set
+			{
+				everythingChecked = value ?? false;
+
+				if (everythingChecked is true)
+					CheckAll();
+				else if (everythingChecked is false)
+					UncheckAll();
+			}
+		}
+
+		private int _totalBooksCount = 0;
+		private int _checkedBooksCount = -1;
+		public int CheckedBooksCount
+		{
+			get => _checkedBooksCount;
+			set
+			{
+				if (_checkedBooksCount != value)
+				{
+					_checkedBooksCount = value;
+					this.RaisePropertyChanged(nameof(CheckedCountText));
+				}
+
+				everythingChecked
+					= _checkedBooksCount == 0 || _totalBooksCount == 0 ? false
+					: _checkedBooksCount == _totalBooksCount ? true
+					: null;
+
+				this.RaisePropertyChanged(nameof(EverythingChecked));
+			}
+		}
+
+		public IEnumerable<LibraryBook> CheckedBooks => DeletedBooks.Where(i => i.IsChecked).Select(i => i.Item).Cast<LibraryBook>();
+
+		public TrashBinViewModel()
+		{
+			DeletedBooks = new()
+			{
+				ResetBehavior = ResetBehavior.Remove
+			};
+
+			tracker = DeletedBooks.TrackItemPropertyChanged(CheckboxPropertyChanged);
+			Reload();
+		}
+
+		public void CheckAll()
+		{
+			foreach (var item in DeletedBooks)
+				item.IsChecked = true;
+		}		
+
+		public void UncheckAll()
+		{
+			foreach (var item in DeletedBooks)
+				item.IsChecked = false;
+		}
+
+		public async Task RestoreCheckedAsync()
+		{
+			ControlsEnabled = false;
+			var qtyChanges = await Task.Run(CheckedBooks.RestoreBooks);
+			if (qtyChanges > 0)
+				Reload();
+			ControlsEnabled = true;
+		}
+
+		public async Task PermanentlyDeleteCheckedAsync()
+		{
+			ControlsEnabled = false;
+			var qtyChanges = await Task.Run(CheckedBooks.PermanentlyDeleteBooks);
+			if (qtyChanges > 0)
+				Reload();
+			ControlsEnabled = true;
+		}
+
+		private void Reload()
+		{
+			var deletedBooks = DbContexts.GetContext().GetDeletedLibraryBooks();
+
+			DeletedBooks.Clear();
+			DeletedBooks.AddRange(deletedBooks.Select(lb => new CheckBoxViewModel { Item = lb }));
+
+			_totalBooksCount = DeletedBooks.Count;
+			CheckedBooksCount = 0;
+		}
+
+		private IDisposable tracker;
+		private void CheckboxPropertyChanged(Tuple<object, PropertyChangedEventArgs> e)
+		{
+			if (e.Item2.PropertyName == nameof(CheckBoxViewModel.IsChecked))
+				CheckedBooksCount = DeletedBooks.Count(b => b.IsChecked);
+		}
+
+		public void Dispose() => tracker?.Dispose();
+	}
+}

Source/LibationAvalonia/LibationAvalonia.csproj

@@ -4,8 +4,6 @@
 	<PropertyGroup>
 		<OutputType>WinExe</OutputType>
 		<TargetFramework>net7.0</TargetFramework>
-		<!--Avalonia doesen't support TrimMode=link currently,but we are working on that https://github.com/AvaloniaUI/Avalonia/issues/6892 -->
-		<TrimMode>copyused</TrimMode>
 		<BuiltInComInteropSupport>true</BuiltInComInteropSupport>
 		<ApplicationIcon>libation.ico</ApplicationIcon>
 		<AssemblyName>Libation</AssemblyName>
@@ -17,13 +15,7 @@
 	</PropertyGroup>
 
 	<PropertyGroup>
-		<!--
-    HACK FOR COMPILER BUG  2021-09-14. Hopefully will be fixed in future versions
-    - Not using SatelliteResourceLanguages will load all language packs: works
-    - Specifying 'en' semicolon 1 more should load 1 language pack: works
-    - Specifying only 'en' should load no language packs: broken, still loads all
-    -->
-		<SatelliteResourceLanguages>en;es</SatelliteResourceLanguages>
+		<SatelliteResourceLanguages>en</SatelliteResourceLanguages>
 	</PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -39,6 +31,8 @@
 	<ItemGroup>
 		<AvaloniaResource Include="Assets\**" />
 		<None Remove=".gitignore" />
+		<None Remove="Assets\Arrows_left.png" />
+		<None Remove="Assets\Arrows_right.png" />
 		<None Remove="Assets\Asterisk.png" />
 		<None Remove="Assets\cancel.png" />
 		<None Remove="Assets\completed.png" />
@@ -109,7 +103,7 @@
 		<PackageReference Include="Avalonia.Diagnostics" Version="11.0.0-preview4 " />
 		<PackageReference Include="Avalonia.ReactiveUI" Version="11.0.0-preview4" />
 		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.0-preview4" />
-		<PackageReference Include="XamlNameReferenceGenerator" Version="1.5.1" />
+		<PackageReference Include="XamlNameReferenceGenerator" Version="1.6.1" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/LibationAvalonia/ViewModels/AvaloniaEntryStatus.cs

@@ -0,0 +1,26 @@
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using DataLayer;
+using LibationUiBase.GridView;
+using System;
+
+namespace LibationAvalonia.ViewModels
+{
+    public class AvaloniaEntryStatus : EntryStatus, IEntryStatus, IComparable
+	{
+		public override IBrush BackgroundBrush => IsEpisode ? App.SeriesEntryGridBackgroundBrush : Brushes.Transparent;
+
+		private AvaloniaEntryStatus(LibraryBook libraryBook) : base(libraryBook) { }
+		public static EntryStatus Create(LibraryBook libraryBook) => new AvaloniaEntryStatus(libraryBook);
+
+		protected override Bitmap LoadImage(byte[] picture)
+			=> AvaloniaUtils.TryLoadImageOrDefault(picture, LibationFileManager.PictureSize._80x80);
+
+		protected override Bitmap GetResourceImage(string rescName)
+		{
+			//These images are assest, so assume they will never corrupt.
+			using var stream = App.OpenAsset(rescName + ".png");
+			return new Bitmap(stream);
+		}
+	}
+}

Source/LibationAvalonia/ViewModels/BookTags.cs

@@ -1,9 +0,0 @@
-namespace LibationAvalonia.ViewModels
-{
-	public class BookTags
-	{
-		private string _tags;
-		public string Tags { get => _tags; init { _tags = value; HasTags = !string.IsNullOrEmpty(_tags); } }
-		public bool HasTags { get; init; }
-	}
-}

Source/LibationAvalonia/ViewModels/GridEntry.cs

@@ -1,209 +0,0 @@
-using ApplicationServices;
-using Avalonia.Media;
-using DataLayer;
-using Dinah.Core;
-using FileLiberator;
-using LibationFileManager;
-using LibationUiBase;
-using ReactiveUI;
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-using System.Threading.Tasks;
-
-namespace LibationAvalonia.ViewModels
-{
-	public enum RemoveStatus
-	{
-		NotRemoved,
-		Removed,
-		SomeRemoved
-	}
-	/// <summary>The View Model base for the DataGridView</summary>
-	public abstract class GridEntry : ViewModelBase
-	{
-		[Browsable(false)] public string AudibleProductId => Book.AudibleProductId;
-		[Browsable(false)] public LibraryBook LibraryBook { get; protected set; }
-		[Browsable(false)] public float SeriesIndex { get; protected set; }
-		[Browsable(false)] public string LongDescription { get; protected set; }
-		[Browsable(false)] public abstract DateTime DateAdded { get; }
-		[Browsable(false)] public int ListIndex { get; set; }
-		[Browsable(false)] public Book Book => LibraryBook.Book;
-
-		#region Model properties exposed to the view
-
-		private Avalonia.Media.Imaging.Bitmap _cover;
-		public Avalonia.Media.Imaging.Bitmap Cover { get => _cover; protected set { this.RaiseAndSetIfChanged(ref _cover, value); } }
-		public string PurchaseDate { get; protected set; }
-		public string Series { get; protected set; }
-		public string Title { get; protected set; }
-		public string Length { get; protected set; }
-		public string Authors { get; protected set; }
-		public string Narrators { get; protected set; }
-		public string Category { get; protected set; }
-		public string Misc { get; protected set; }
-		public string Description { get; protected set; }
-		public Rating ProductRating { get; protected set; }
-		protected Rating _myRating;
-		public Rating MyRating
-		{
-			get => _myRating;
-			set
-			{
-				if (_myRating != value
-					&& value.OverallRating != 0
-					&& updateReviewTask?.IsCompleted is not false)
-				{
-					updateReviewTask = UpdateRating(value);
-				}
-			}
-		}
-
-		protected bool? _remove = false;
-		public abstract bool? Remove { get; set; }
-		public abstract LiberateButtonStatus Liberate { get; }
-		public abstract BookTags BookTags { get; }
-		public abstract bool IsSeries { get; }
-		public abstract bool IsEpisode { get; }
-		public abstract bool IsBook { get; }
-		public IBrush BackgroundBrush => IsEpisode ? App.SeriesEntryGridBackgroundBrush : Brushes.Transparent;
-
-		#endregion
-
-		#region User rating
-
-		private Task updateReviewTask;
-		private async Task UpdateRating(Rating rating)
-		{
-			var api = await LibraryBook.GetApiAsync();
-
-			if (await api.ReviewAsync(Book.AudibleProductId, (int)rating.OverallRating, (int)rating.PerformanceRating, (int)rating.StoryRating))
-			{
-				_myRating = rating;
-				LibraryBook.Book.UpdateUserDefinedItem(Book.UserDefinedItem.Tags, Book.UserDefinedItem.BookStatus, Book.UserDefinedItem.PdfStatus, rating);
-			}
-
-			this.RaisePropertyChanged(nameof(MyRating));
-		}
-
-		#endregion
-
-		#region Sorting
-
-		public GridEntry() => _memberValues = CreateMemberValueDictionary();
-
-		// These methods are implementation of Dinah.Core.DataBinding.IMemberComparable
-		// Used by GridEntryBindingList for all sorting
-		public virtual object GetMemberValue(string memberName) => _memberValues[memberName]();
-		public IComparer GetMemberComparer(Type memberType) => _memberTypeComparers[memberType];
-		protected abstract Dictionary<string, Func<object>> CreateMemberValueDictionary();
-		private Dictionary<string, Func<object>> _memberValues { get; set; }
-
-		// Instantiate comparers for every exposed member object type.
-		private static readonly Dictionary<Type, IComparer> _memberTypeComparers = new()
-		{
-			{ typeof(RemoveStatus), new ObjectComparer<RemoveStatus>() },
-			{ typeof(string), new ObjectComparer<string>() },
-			{ typeof(int), new ObjectComparer<int>() },
-			{ typeof(float), new ObjectComparer<float>() },
-			{ typeof(bool), new ObjectComparer<bool>() },
-			{ typeof(DateTime), new ObjectComparer<DateTime>() },
-			{ typeof(LiberateButtonStatus), new ObjectComparer<LiberateButtonStatus>() },
-		};
-
-		#endregion
-
-		#region Cover Art
-
-		protected void LoadCover()
-		{
-			// Get cover art. If it's default, subscribe to PictureCached
-			(bool isDefault, byte[] picture) = PictureStorage.GetPicture(new PictureDefinition(Book.PictureId, PictureSize._80x80));
-
-			if (isDefault)
-				PictureStorage.PictureCached += PictureStorage_PictureCached;
-
-			// Mutable property. Set the field so PropertyChanged isn't fired.
-			using var ms = new System.IO.MemoryStream(picture);
-			_cover = new Avalonia.Media.Imaging.Bitmap(ms);
-		}
-
-		private void PictureStorage_PictureCached(object sender, PictureCachedEventArgs e)
-        {
-            // state validation
-            if (e is null ||
-                e.Definition.PictureId is null ||
-                Book?.PictureId is null ||
-                e.Picture is null ||
-                e.Picture.Length == 0)
-                return;
-
-            // logic validation
-            if (e.Definition.PictureId == Book.PictureId)
-			{
-				using var ms = new System.IO.MemoryStream(e.Picture);
-				Cover = new Avalonia.Media.Imaging.Bitmap(ms);
-				PictureStorage.PictureCached -= PictureStorage_PictureCached;
-			}
-		}
-
-		#endregion
-
-		#region Static library display functions		
-
-		/// <summary>This information should not change during <see cref="GridEntry"/> lifetime, so call only once.</summary>
-		protected static string GetDescriptionDisplay(Book book)
-		{
-			var doc = new HtmlAgilityPack.HtmlDocument();
-			doc.LoadHtml(book?.Description?.Replace("</p> ", "\r\n\r\n</p>") ?? "");
-			return doc.DocumentNode.InnerText.Trim();
-		}
-
-		protected static string TrimTextToWord(string text, int maxLength)
-		{
-			return
-				text.Length <= maxLength ?
-				text :
-				text.Substring(0, maxLength - 3) + "...";
-		}
-
-
-		/// <summary>
-		/// This information should not change during <see cref="GridEntry"/> lifetime, so call only once.
-		/// Maximum of 5 text rows will fit in 80-pixel row height.
-		/// </summary>
-		protected static string GetMiscDisplay(LibraryBook libraryBook)
-		{
-			var details = new List<string>();
-
-			var locale = libraryBook.Book.Locale.DefaultIfNullOrWhiteSpace("[unknown]");
-			var acct = libraryBook.Account.DefaultIfNullOrWhiteSpace("[unknown]");
-
-			details.Add($"Account: {locale} - {acct}");
-
-			if (libraryBook.Book.HasPdf())
-				details.Add("Has PDF");
-			if (libraryBook.Book.IsAbridged)
-				details.Add("Abridged");
-			if (libraryBook.Book.DatePublished.HasValue)
-				details.Add($"Date pub'd: {libraryBook.Book.DatePublished.Value:MM/dd/yyyy}");
-			// this goes last since it's most likely to have a line-break
-			if (!string.IsNullOrWhiteSpace(libraryBook.Book.Publisher))
-				details.Add($"Pub: {libraryBook.Book.Publisher.Trim()}");
-
-			if (!details.Any())
-				return "[details not imported]";
-
-			return string.Join("\r\n", details);
-		}
-
-		#endregion
-
-		~GridEntry()
-		{
-			PictureStorage.PictureCached -= PictureStorage_PictureCached;
-		}
-	}
-}

Source/LibationAvalonia/ViewModels/LiberateButtonStatus.cs

@@ -1,119 +0,0 @@
-using Avalonia.Media.Imaging;
-using DataLayer;
-using ReactiveUI;
-using System;
-using System.Collections.Generic;
-
-namespace LibationAvalonia.ViewModels
-{
-	public class LiberateButtonStatus : ViewModelBase, IComparable
-	{
-		public LiberateButtonStatus(bool isSeries)
-		{
-			IsSeries = isSeries;
-		}
-		public LiberatedStatus BookStatus { get; set; }
-		public LiberatedStatus? PdfStatus { get; set; }
-
-		private bool _expanded;
-		public bool Expanded
-		{
-			get => _expanded;
-			set
-			{
-				this.RaiseAndSetIfChanged(ref _expanded, value);
-				this.RaisePropertyChanged(nameof(Image));
-				this.RaisePropertyChanged(nameof(ToolTip));
-			}
-		}
-		private bool IsSeries { get; }
-		public Bitmap Image => GetLiberateIcon();
-		public string ToolTip => GetTooltip();
-
-		static Dictionary<string, Bitmap> iconCache = new();
-
-		/// <summary> Defines the Liberate column's sorting behavior </summary>
-		public int CompareTo(object obj)
-		{
-			if (obj is not LiberateButtonStatus second) return -1;
-
-			if (IsSeries && !second.IsSeries) return -1;
-			else if (!IsSeries && second.IsSeries) return 1;
-			else if (IsSeries && second.IsSeries) return 0;
-			else if (BookStatus == LiberatedStatus.Liberated && second.BookStatus != LiberatedStatus.Liberated) return -1;
-			else if (BookStatus != LiberatedStatus.Liberated && second.BookStatus == LiberatedStatus.Liberated) return 1;
-			else return BookStatus.CompareTo(second.BookStatus);
-		}
-
-		private Bitmap GetLiberateIcon()
-		{
-			if (IsSeries)
-				return Expanded ? GetFromResources("minus") : GetFromResources("plus");
-
-			if (BookStatus == LiberatedStatus.Error)
-				return GetFromResources("error");
-
-			string image_lib = BookStatus switch
-			{
-				LiberatedStatus.Liberated => "green",
-				LiberatedStatus.PartialDownload => "yellow",
-				LiberatedStatus.NotLiberated => "red",
-				_ => throw new Exception("Unexpected liberation state")
-			};
-
-			string image_pdf = PdfStatus switch
-			{
-				LiberatedStatus.Liberated => "_pdf_yes",
-				LiberatedStatus.NotLiberated => "_pdf_no",
-				LiberatedStatus.Error => "_pdf_no",
-				null => "",
-				_ => throw new Exception("Unexpected PDF state")
-			};
-
-			return GetFromResources($"liberate_{image_lib}{image_pdf}");
-		}
-		private string GetTooltip()
-		{
-			if (IsSeries)
-				return Expanded ? "Click to Collpase" : "Click to Expand";
-
-			if (BookStatus == LiberatedStatus.Error)
-				return "Book downloaded ERROR";
-
-			string libState = BookStatus switch
-			{
-				LiberatedStatus.Liberated => "Liberated",
-				LiberatedStatus.PartialDownload => "File has been at least\r\npartially downloaded",
-				LiberatedStatus.NotLiberated => "Book NOT downloaded",
-				_ => throw new Exception("Unexpected liberation state")
-			};
-
-			string pdfState = PdfStatus switch
-			{
-				LiberatedStatus.Liberated => "\r\nPDF downloaded",
-				LiberatedStatus.NotLiberated => "\r\nPDF NOT downloaded",
-				LiberatedStatus.Error => "\r\nPDF downloaded ERROR",
-				null => "",
-				_ => throw new Exception("Unexpected PDF state")
-			};
-
-
-			var mouseoverText = libState + pdfState;
-
-			if (BookStatus == LiberatedStatus.NotLiberated ||
-				BookStatus == LiberatedStatus.PartialDownload ||
-				PdfStatus == LiberatedStatus.NotLiberated)
-				mouseoverText += "\r\nClick to complete";
-
-			return mouseoverText;
-		}
-
-		private static Bitmap GetFromResources(string rescName)
-		{
-			if (iconCache.ContainsKey(rescName)) return iconCache[rescName];
-
-			iconCache[rescName] = new Bitmap(App.OpenAsset(rescName + ".png"));
-			return iconCache[rescName];
-		}
-	}
-}

Source/LibationAvalonia/ViewModels/LibraryBookEntry.cs

@@ -1,149 +0,0 @@
-using ApplicationServices;
-using DataLayer;
-using Dinah.Core;
-using ReactiveUI;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-
-namespace LibationAvalonia.ViewModels
-{
-	/// <summary>The View Model for a LibraryBook that is ContentType.Product or ContentType.Episode</summary>
-	public class LibraryBookEntry : GridEntry
-	{
-		[Browsable(false)] public override DateTime DateAdded => LibraryBook.DateAdded;
-		[Browsable(false)] public SeriesEntry Parent { get; init; }
-
-		#region Model properties exposed to the view
-
-		private DateTime lastStatusUpdate = default;
-		private LiberatedStatus _bookStatus;
-		private LiberatedStatus? _pdfStatus;
-
-		public override bool? Remove
-		{
-			get => _remove;
-			set
-			{
-				_remove = value ?? false;
-
-				Parent?.ChildRemoveUpdate();
-				this.RaisePropertyChanged(nameof(Remove));
-			}
-		}
-
-		public override LiberateButtonStatus Liberate
-		{
-			get
-			{
-				//Cache these statuses for faster sorting.
-				if ((DateTime.Now - lastStatusUpdate).TotalSeconds > 2)
-				{
-					_bookStatus = LibraryCommands.Liberated_Status(LibraryBook.Book);
-					_pdfStatus = LibraryCommands.Pdf_Status(LibraryBook.Book);
-					lastStatusUpdate = DateTime.Now;
-				}
-				return new LiberateButtonStatus(IsSeries) { BookStatus = _bookStatus, PdfStatus = _pdfStatus };
-			}
-		}
-
-		public override BookTags BookTags => new() { Tags = string.Join("\r\n", Book.UserDefinedItem.TagsEnumerated) };
-
-		public override bool IsSeries => false;
-		public override bool IsEpisode => Parent is not null;
-		public override bool IsBook => Parent is null;
-
-		#endregion
-
-		public LibraryBookEntry(LibraryBook libraryBook)
-		{
-			LibraryBook = libraryBook;
-			LoadCover();
-
-			Title = Book.Title;
-			Series = Book.SeriesNames();
-			Length = Book.LengthInMinutes == 0 ? "" : $"{Book.LengthInMinutes / 60} hr {Book.LengthInMinutes % 60} min";
-			//Ratings are changed using Update(), which is a problem for Avalonia data bindings because
-			//the reference doesn't change. Clone the rating so that it updates within Avalonia properly.
-			_myRating = new Rating(Book.UserDefinedItem.Rating.OverallRating, Book.UserDefinedItem.Rating.PerformanceRating, Book.UserDefinedItem.Rating.StoryRating);
-			PurchaseDate = libraryBook.DateAdded.ToString("d");
-			ProductRating = Book.Rating ?? new Rating(0, 0, 0);
-			Authors = Book.AuthorNames();
-			Narrators = Book.NarratorNames();
-			Category = string.Join(" > ", Book.CategoriesNames());
-			Misc = GetMiscDisplay(libraryBook);
-			LongDescription = GetDescriptionDisplay(Book);
-			Description = TrimTextToWord(LongDescription, 62);
-			SeriesIndex = Book.SeriesLink.FirstOrDefault()?.Index ?? 0;
-
-			UserDefinedItem.ItemChanged += UserDefinedItem_ItemChanged;
-		}
-
-		#region detect changes to the model, update the view.
-
-		/// <summary>
-		/// This event handler receives notifications from the model that it has changed.
-		/// Notify the view that it's changed.
-		/// </summary>
-		private void UserDefinedItem_ItemChanged(object sender, string itemName)
-		{
-			var udi = sender as UserDefinedItem;
-
-			if (udi.Book.AudibleProductId != Book.AudibleProductId)
-				return;
-
-			// UDI changed, possibly in a different context/view. Update this viewmodel. Call NotifyPropertyChanged to notify view.
-			// - This method responds to tons of incidental changes. Do not persist to db from here. Committing to db must be a volitional action by the caller, not incidental. Otherwise batch changes would be impossible; we would only have slow one-offs
-			// - Don't restrict notifying view to 'only if property changed'. This same book instance can get passed to a different view, then changed there. When the chain of events makes its way back here, the property is unchanged (because it's the same instance), but this view is out of sync. NotifyPropertyChanged will then update this view.
-			switch (itemName)
-			{
-				case nameof(udi.Tags):
-					Book.UserDefinedItem.Tags = udi.Tags; 
-					this.RaisePropertyChanged(nameof(BookTags));
-					break;
-				case nameof(udi.BookStatus):
-					Book.UserDefinedItem.BookStatus = udi.BookStatus;
-					_bookStatus = udi.BookStatus;
-					this.RaisePropertyChanged(nameof(Liberate));
-					break;
-				case nameof(udi.PdfStatus):
-					Book.UserDefinedItem.SetPdfStatus(udi.PdfStatus);
-					_pdfStatus = udi.PdfStatus;
-					this.RaisePropertyChanged(nameof(Liberate));
-					break;
-			}
-		}
-
-		#endregion
-
-		#region Data Sorting
-
-		/// <summary>Create getters for all member object values by name </summary>
-		protected override Dictionary<string, Func<object>> CreateMemberValueDictionary() => new()
-		{
-			{ nameof(Remove), () => Remove.HasValue ? Remove.Value ? RemoveStatus.Removed : RemoveStatus.NotRemoved : RemoveStatus.SomeRemoved },
-			{ nameof(Title), () => Book.TitleSortable() },
-			{ nameof(Series), () => Book.SeriesSortable() },
-			{ nameof(Length), () => Book.LengthInMinutes },
-			{ nameof(MyRating), () => Book.UserDefinedItem.Rating.FirstScore() },
-			{ nameof(PurchaseDate), () => LibraryBook.DateAdded },
-			{ nameof(ProductRating), () => Book.Rating.FirstScore() },
-			{ nameof(Authors), () => Authors },
-			{ nameof(Narrators), () => Narrators },
-			{ nameof(Description), () => Description },
-			{ nameof(Category), () => Category },
-			{ nameof(Misc), () => Misc },
-			{ nameof(BookTags), () => BookTags?.Tags ?? string.Empty },
-			{ nameof(Liberate), () => Liberate },
-			{ nameof(DateAdded), () => DateAdded },
-		};
-
-		#endregion
-
-		~LibraryBookEntry()
-		{
-			UserDefinedItem.ItemChanged -= UserDefinedItem_ItemChanged;
-		}
-	}
-}

Source/LibationAvalonia/ViewModels/MainWindowViewModel.cs

@@ -1,5 +1,4 @@
 using ApplicationServices;
-using Dinah.Core;
 using LibationFileManager;
 using ReactiveUI;
 
@@ -25,6 +24,9 @@ namespace LibationAvalonia.ViewModels
 		public ProcessQueueViewModel ProcessQueue { get; } = new ProcessQueueViewModel();
 		public ProductsDisplayViewModel ProductsDisplay { get; } = new ProductsDisplayViewModel();
 
+		private double? _downloadProgress = null;
+		public double? DownloadProgress { get => _downloadProgress; set => this.RaiseAndSetIfChanged(ref _downloadProgress, value); }
+
 
 		/// <summary> Library filterting query </summary>
 		public string FilterString { get => _filterString; set => this.RaiseAndSetIfChanged(ref _filterString, value); }
@@ -132,15 +134,9 @@ namespace LibationAvalonia.ViewModels
 			set
 			{
 				this.RaiseAndSetIfChanged(ref _queueOpen, value);
-				QueueHideButtonText = _queueOpen? "❱❱❱" : "❰❰❰";
-				this.RaisePropertyChanged(nameof(QueueHideButtonText));
 			}
 		}
 
-		/// <summary> The Process Queue's Expand/Collapse button display text </summary>
-		public string QueueHideButtonText { get; private set; }
-
-
 
 		/// <summary> The number of books visible in the Product Display </summary>
 		public int VisibleCount
@@ -169,18 +165,6 @@ namespace LibationAvalonia.ViewModels
 			{
 				this.RaiseAndSetIfChanged(ref _libraryStats, value);
 
-				var backupsCountText
-					= !LibraryStats.HasBookResults ? "No books. Begin by importing your library"
-					: !LibraryStats.HasPendingBooks ? $"All {"book".PluralizeWithCount(LibraryStats.booksFullyBackedUp)} backed up"
-					: $"BACKUPS: No progress: {LibraryStats.booksNoProgress}  In process: {LibraryStats.booksDownloadedOnly}  Fully backed up: {LibraryStats.booksFullyBackedUp} {(LibraryStats.booksError > 0 ? $"  Errors : {LibraryStats.booksError}" : "")}";
-
-				var pdfCountText
-					= !LibraryStats.HasPdfResults ? ""
-					: LibraryStats.pdfsNotDownloaded == 0 ? $"  |  All {LibraryStats.pdfsDownloaded} PDFs downloaded"
-					: $"  |  PDFs: NOT d/l'ed: {LibraryStats.pdfsNotDownloaded} Downloaded: {LibraryStats.pdfsDownloaded}";
-
-				StatusCountText = backupsCountText + pdfCountText;
-
 				BookBackupsToolStripText
 					= LibraryStats.HasPendingBooks
 					? $"Begin _Book and PDF Backups: {LibraryStats.PendingBooks} remaining"
@@ -191,21 +175,17 @@ namespace LibationAvalonia.ViewModels
 					? $"Begin _PDF Only Backups: {LibraryStats.pdfsNotDownloaded} remaining"
 					: "All PDFs have been downloaded";
 
-				this.RaisePropertyChanged(nameof(StatusCountText));
 				this.RaisePropertyChanged(nameof(BookBackupsToolStripText));
 				this.RaisePropertyChanged(nameof(PdfBackupsToolStripText));
 			}
 		}
 
-		/// <summary> Bottom-left library statistics display text </summary>
-		public string StatusCountText { get; private set; } = "[Calculating backed up book quantities]  |  [Calculating backed up PDFs]";
 		/// <summary> The "Begin Book and PDF Backup" menu item header text </summary>
 		public string BookBackupsToolStripText { get; private set; } = "Begin _Book and PDF Backups: 0";
 		/// <summary> The "Begin PDF Only Backup" menu item header text </summary>
 		public string PdfBackupsToolStripText { get; private set; } = "Begin _PDF Only Backups: 0";
 
 
-
 		/// <summary> The number of books visible in the Products Display that have not yet been liberated </summary>
 		public int VisibleNotLiberated
 		{

Source/LibationAvalonia/ViewModels/ProcessBookViewModel.cs

@@ -115,16 +115,14 @@ namespace LibationAvalonia.ViewModels
 				PictureStorage.PictureCached += PictureStorage_PictureCached;
 
 			// Mutable property. Set the field so PropertyChanged isn't fired.
-			using var ms = new System.IO.MemoryStream(picture);
-			_cover = new Bitmap(ms);
+			_cover = AvaloniaUtils.TryLoadImageOrDefault(picture, PictureSize._80x80);
 		}
 
 		private void PictureStorage_PictureCached(object sender, PictureCachedEventArgs e)
 		{
 			if (e.Definition.PictureId == LibraryBook.Book.PictureId)
 			{
-				using var ms = new System.IO.MemoryStream(e.Picture);
-				Cover = new Bitmap(ms);
+				Cover = AvaloniaUtils.TryLoadImageOrDefault(e.Picture, PictureSize._80x80);
 				PictureStorage.PictureCached -= PictureStorage_PictureCached;
 			}
 		}

Source/LibationAvalonia/ViewModels/ProcessQueueViewModel.cs

@@ -1,4 +1,5 @@
 using ApplicationServices;
+using Avalonia.Collections;
 using Avalonia.Controls;
 using Avalonia.Threading;
 using DataLayer;
@@ -16,9 +17,8 @@ namespace LibationAvalonia.ViewModels
 	public class ProcessQueueViewModel : ViewModelBase, ILogForm
 	{
 		public ObservableCollection<LogEntry> LogEntries { get; } = new();
-		public TrackedQueue<ProcessBookViewModel> Items { get; } = new();
-
-		private TrackedQueue<ProcessBookViewModel> Queue => Items;
+		public AvaloniaList<ProcessBookViewModel> Items { get; } = new();
+		public TrackedQueue<ProcessBookViewModel> Queue { get; }
 		public ProcessBookViewModel SelectedItem { get; set; }
 		public Task QueueRunner { get; private set; }
 		public bool Running => !QueueRunner?.IsCompleted ?? false;
@@ -28,6 +28,7 @@ namespace LibationAvalonia.ViewModels
 		public ProcessQueueViewModel()
 		{
 			Logger = LogMe.RegisterForm(this);
+			Queue = new(Items);
 			Queue.QueuededCountChanged += Queue_QueuededCountChanged;
 			Queue.CompletedCountChanged += Queue_CompletedCountChanged;
 
@@ -88,19 +89,19 @@ namespace LibationAvalonia.ViewModels
 
 		public decimal SpeedLimitIncrement { get; private set; }
 
-		private void Queue_CompletedCountChanged(object sender, int e)
+		private async void Queue_CompletedCountChanged(object sender, int e)
 		{
 			int errCount = Queue.Completed.Count(p => p.Result is ProcessBookResult.FailedAbort or ProcessBookResult.FailedSkip or ProcessBookResult.FailedRetry or ProcessBookResult.ValidationFail);
 			int completeCount = Queue.Completed.Count(p => p.Result is ProcessBookResult.Success);
 
 			ErrorCount = errCount;
 			CompletedCount = completeCount;
-			Dispatcher.UIThread.Post(() => this.RaisePropertyChanged(nameof(Progress)));
+			await Dispatcher.UIThread.InvokeAsync(() => this.RaisePropertyChanged(nameof(Progress)));
 		}
-		private void Queue_QueuededCountChanged(object sender, int cueCount)
+		private async void Queue_QueuededCountChanged(object sender, int cueCount)
 		{
 			QueuedCount = cueCount;
-			Dispatcher.UIThread.Post(() => this.RaisePropertyChanged(nameof(Progress)));
+			await Dispatcher.UIThread.InvokeAsync(() => this.RaisePropertyChanged(nameof(Progress)));
 		}
 
 		public void WriteLine(string text)

Source/LibationAvalonia/ViewModels/ProductsDisplayViewModel.cs

@@ -1,15 +1,16 @@
+using ApplicationServices;
+using AudibleUtilities;
+using Avalonia.Collections;
+using Avalonia.Threading;
 using DataLayer;
+using LibationAvalonia.Dialogs.Login;
+using LibationUiBase.GridView;
+using ReactiveUI;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
 using System.Threading.Tasks;
-using ReactiveUI;
-using Avalonia.Threading;
-using ApplicationServices;
-using AudibleUtilities;
-using LibationAvalonia.Dialogs.Login;
-using Avalonia.Collections;
 
 namespace LibationAvalonia.ViewModels
 {
@@ -20,69 +21,232 @@ namespace LibationAvalonia.ViewModels
 		public event EventHandler<int> RemovableCountChanged;
 
 		/// <summary>Backing list of all grid entries</summary>
-		private readonly List<GridEntry> SOURCE = new();
+		private readonly AvaloniaList<IGridEntry> SOURCE = new();
 		/// <summary>Grid entries included in the filter set. If null, all grid entries are shown</summary>
-		private List<GridEntry> FilteredInGridEntries;
+		private List<IGridEntry> FilteredInGridEntries;
 		public string FilterString { get; private set; }
-		public DataGridCollectionView GridEntries { get; }
+		public DataGridCollectionView GridEntries { get; private set; }
 
 		private bool _removeColumnVisivle;
 		public bool RemoveColumnVisivle { get => _removeColumnVisivle; private set => this.RaiseAndSetIfChanged(ref _removeColumnVisivle, value); }
 
 		public List<LibraryBook> GetVisibleBookEntries()
 			=> GridEntries
-			.OfType<LibraryBookEntry>()
+			.OfType<ILibraryBookEntry>()
 			.Select(lbe => lbe.LibraryBook)
 			.ToList();
 
-		private IEnumerable<LibraryBookEntry> GetAllBookEntries()
+		private IEnumerable<ILibraryBookEntry> GetAllBookEntries()
 			=> SOURCE
 			.BookEntries();
 
 		public ProductsDisplayViewModel()
 		{
 			SearchEngineCommands.SearchEngineUpdated += SearchEngineCommands_SearchEngineUpdated;
-			GridEntries = new(SOURCE);
-			GridEntries.Filter = CollectionFilter;
+			VisibleCountChanged?.Invoke(this, 0);
+		}
 
-			GridEntries.CollectionChanged += (s, e)
-				=> VisibleCountChanged?.Invoke(this, GridEntries.OfType<LibraryBookEntry>().Count());
+		private static readonly System.Reflection.MethodInfo SetFlagsMethod;
+
+		/// <summary>
+		/// Tells the <see cref="DataGridCollectionView"/> whether it should process changes to the underlying collection
+		/// </summary>
+		/// <remarks> DataGridCollectionView.CollectionViewFlags.ShouldProcessCollectionChanged = 4</remarks>
+		private void SetShouldProcessCollectionChanged(bool flagSet)
+			=> SetFlagsMethod.Invoke(GridEntries, new object[] { 4, flagSet });
+
+		static ProductsDisplayViewModel()
+		{
+			/*
+			 * When a book is removed from the library, SearchEngineUpdated is fired before LibrarySizeChanged, so
+			 * the book is removed from the filtered set and the grid is refreshed before RemoveBooks() is ever
+			 * called.
+			 * 
+			 * To remove an item from DataGridCollectionView, it must be be in the current filtered view. If it's
+			 * not and you try to remove the book from the source list, the source will fire NotifyCollectionChanged
+			 * on an invalid item and the DataGridCollectionView will throw an exception. There are two ways to
+			 * remove an item that is filtered out of the DataGridCollectionView:
+			 * 
+			 * (1)  Re-add the item to the filtered-in list and refresh the grid so DataGridCollectionView knows
+			 *		that the item is present. This causes the whole grid to flicker to refresh twice in rapid
+			 *		succession, which is undesirable.
+			 *		
+			 * (2)  Remove it from the underlying collection and suppress NotifyCollectionChanged. This is the
+			 *		method used. Steps to complete a removal using this method:
+			 *		
+			 *		(a)	Set DataGridCollectionView.CollectionViewFlags.ShouldProcessCollectionChanged to false.
+			 *		(b) Remove the item from the source list. The source will fire NotifyCollectionChanged, but the
+			 *			DataGridCollectionView will ignore it.
+			 *		(c) Reset the flag to true.
+			 */
+
+			SetFlagsMethod =
+				typeof(DataGridCollectionView)
+				.GetMethod("SetFlag", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
 		}
 
 		#region Display Functions
 
+		internal void BindToGrid(List<LibraryBook> dbBooks)
+		{
+			GridEntries = new(SOURCE) { Filter = CollectionFilter };
+
+			var geList = dbBooks
+				.Where(lb => lb.Book.IsProduct())
+				.Select(b => new LibraryBookEntry<AvaloniaEntryStatus>(b))
+				.ToList<IGridEntry>();
+
+			var episodes = dbBooks.Where(lb => lb.Book.IsEpisodeChild()).ToList();
+
+			var seriesBooks = dbBooks.Where(lb => lb.Book.IsEpisodeParent()).ToList();
+
+			foreach (var parent in seriesBooks)
+			{
+				var seriesEpisodes = episodes.FindChildren(parent);
+
+				if (!seriesEpisodes.Any()) continue;
+
+				var seriesEntry = new SeriesEntry<AvaloniaEntryStatus>(parent, seriesEpisodes);
+				seriesEntry.Liberate.Expanded = false;
+
+				geList.Add(seriesEntry);
+				geList.AddRange(seriesEntry.Children);
+			}
+
+			//Create the filtered-in list before adding entries to avoid a refresh
+			FilteredInGridEntries = QueryResults(geList, FilterString);
+			SOURCE.AddRange(geList.OrderByDescending(e => e.DateAdded));
+			GridEntries.CollectionChanged += (_, _)
+				=> VisibleCountChanged?.Invoke(this, GridEntries.OfType<ILibraryBookEntry>().Count());
+
+			VisibleCountChanged?.Invoke(this, GridEntries.OfType<ILibraryBookEntry>().Count());
+		}
+
 		/// <summary>
 		/// Call when there's been a change to the library
 		/// </summary>
-		public async Task DisplayBooksAsync(List<LibraryBook> dbBooks)
+		internal async Task UpdateGridAsync(List<LibraryBook> dbBooks)
 		{
-			try
+			#region Add new or update existing grid entries
+
+			//Add absent entries to grid, or update existing entry
+			var allEntries = SOURCE.BookEntries().ToList();
+			var seriesEntries = SOURCE.SeriesEntries().ToList();
+			var parentedEpisodes = dbBooks.ParentedEpisodes().ToHashSet();
+
+			await Dispatcher.UIThread.InvokeAsync(() =>
 			{
-				var existingSeriesEntries = SOURCE.SeriesEntries().ToList();
-
-				FilteredInGridEntries?.Clear();
-				SOURCE.Clear();
-				SOURCE.AddRange(CreateGridEntries(dbBooks));
-
-				//If replacing the list, preserve user's existing collapse/expand
-				//state. When resetting a list, default state is cosed.
-				foreach (var series in existingSeriesEntries)
+				foreach (var libraryBook in dbBooks.OrderBy(e => e.DateAdded))
 				{
-					var sEntry = SOURCE.FirstOrDefault(ge => ge.AudibleProductId == series.AudibleProductId);
-					if (sEntry is SeriesEntry se)
-						se.Liberate.Expanded = series.Liberate.Expanded;
+					var existingEntry = allEntries.FindByAsin(libraryBook.Book.AudibleProductId);
+
+					if (libraryBook.Book.IsProduct())
+						UpsertBook(libraryBook, existingEntry);
+					else if (parentedEpisodes.Contains(libraryBook))
+						//Only try to add or update is this LibraryBook is a know child of a parent
+						UpsertEpisode(libraryBook, existingEntry, seriesEntries, dbBooks);
+				}
+			});
+
+			#endregion
+
+			#region Remove entries no longer in the library
+
+			//Rapid successive book removals will cause changes to SOURCE after the update has
+			//begun but before it has completed, so perform all updates on a copy of the list.
+			var sourceSnapshot = SOURCE.ToList();
+
+			// remove deleted from grid.
+			// note: actual deletion from db must still occur via the RemoveBook feature. deleting from audible will not trigger this
+			var removedBooks =
+				sourceSnapshot
+				.BookEntries()
+				.ExceptBy(dbBooks.Select(lb => lb.Book.AudibleProductId), ge => ge.AudibleProductId);
+
+			//Remove books in series from their parents' Children list
+			foreach (var removed in removedBooks.Where(b => b.Liberate.IsEpisode))
+				removed.Parent.RemoveChild(removed);
+
+			//Remove series that have no children
+			var removedSeries = sourceSnapshot.EmptySeries();
+
+			await Dispatcher.UIThread.InvokeAsync(() => RemoveBooks(removedBooks, removedSeries));
+
+			#endregion
+
+			await Filter(FilterString);
+			GC.Collect(GC.MaxGeneration, GCCollectionMode.Aggressive, true, true);
+		}
+
+		private void RemoveBooks(IEnumerable<ILibraryBookEntry> removedBooks, IEnumerable<ISeriesEntry> removedSeries)
+		{
+			foreach (var removed in removedBooks.Cast<IGridEntry>().Concat(removedSeries).Where(b => b is not null).ToList())
+			{
+				if (GridEntries.PassesFilter(removed))
+					GridEntries.Remove(removed);
+				else
+				{
+					SetShouldProcessCollectionChanged(false);
+					SOURCE.Remove(removed);
+					SetShouldProcessCollectionChanged(true);
+				}
+			}
+		}
+
+		private void UpsertBook(LibraryBook book, ILibraryBookEntry existingBookEntry)
+		{
+			if (existingBookEntry is null)
+				// Add the new product to top
+				SOURCE.Insert(0, new LibraryBookEntry<AvaloniaEntryStatus>(book));
+			else
+				// update existing
+				existingBookEntry.UpdateLibraryBook(book);
+		}
+
+		private void UpsertEpisode(LibraryBook episodeBook, ILibraryBookEntry existingEpisodeEntry, List<ISeriesEntry> seriesEntries, IEnumerable<LibraryBook> dbBooks)
+		{
+			if (existingEpisodeEntry is null)
+			{
+				ILibraryBookEntry episodeEntry;
+
+				var seriesEntry = seriesEntries.FindSeriesParent(episodeBook);
+
+				if (seriesEntry is null)
+				{
+					//Series doesn't exist yet, so create and add it
+					var seriesBook = dbBooks.FindSeriesParent(episodeBook);
+
+					if (seriesBook is null)
+					{
+						//This is only possible if the user's db  has some malformed
+						//entries from earlier Libation releases that could not be
+						//automatically fixed. Log, but don't throw.
+						Serilog.Log.Logger.Error("Episode={0}, Episode Series: {1}", episodeBook, episodeBook.Book.SeriesNames());
+						return;
+					}
+
+					seriesEntry = new SeriesEntry<AvaloniaEntryStatus>(seriesBook, episodeBook);
+					seriesEntries.Add(seriesEntry);
+
+					episodeEntry = seriesEntry.Children[0];
+					seriesEntry.Liberate.Expanded = true;
+					SOURCE.Insert(0, seriesEntry);
+				}
+				else
+				{
+					//Series exists. Create and add episode child then update the SeriesEntry
+					episodeEntry = new LibraryBookEntry<AvaloniaEntryStatus>(episodeBook, seriesEntry);
+					seriesEntry.Children.Add(episodeEntry);
+					var seriesBook = dbBooks.Single(lb => lb.Book.AudibleProductId == seriesEntry.LibraryBook.Book.AudibleProductId);
+					seriesEntry.UpdateLibraryBook(seriesBook);
 				}
 
-				//Run query on new list
-				FilteredInGridEntries = QueryResults(SOURCE, FilterString);
-
-				await refreshGrid();
-
-			}
-			catch (Exception ex)
-			{
-				Serilog.Log.Error(ex, "Error displaying library in {0}", nameof(ProductsDisplayViewModel));
+				//Add episode to the grid beneath the parent
+				int seriesIndex = SOURCE.IndexOf(seriesEntry);
+				SOURCE.Insert(seriesIndex + 1, episodeEntry);
 			}
+			else
+				existingEpisodeEntry.UpdateLibraryBook(episodeBook);
 		}
 
 		private async Task refreshGrid()
@@ -93,39 +257,7 @@ namespace LibationAvalonia.ViewModels
 			await Dispatcher.UIThread.InvokeAsync(GridEntries.Refresh);
 		}
 
-		private static List<GridEntry> CreateGridEntries(IEnumerable<LibraryBook> dbBooks)
-		{
-			var geList = dbBooks
-				.Where(lb => lb.Book.IsProduct())
-				.Select(b => new LibraryBookEntry(b))
-				.Cast<GridEntry>()
-				.ToList();
-
-			var episodes = dbBooks.Where(lb => lb.Book.IsEpisodeChild());
-
-			foreach (var parent in dbBooks.Where(lb => lb.Book.IsEpisodeParent()))
-			{
-				var seriesEpisodes = episodes.FindChildren(parent);
-
-				if (!seriesEpisodes.Any()) continue;
-
-				var seriesEntry = new SeriesEntry(parent, seriesEpisodes);
-
-				geList.Add(seriesEntry);
-				geList.AddRange(seriesEntry.Children);
-			}
-
-			var bookList =  geList.OrderByDescending(e => e.DateAdded).ToList();
-
-			//ListIndex is used by RowComparer to make column sort stable
-			int index = 0;
-			foreach (GridEntry di in bookList)
-				di.ListIndex = index++;
-
-			return bookList;
-		}
-
-		public async Task ToggleSeriesExpanded(SeriesEntry seriesEntry)
+		public async Task ToggleSeriesExpanded(ISeriesEntry seriesEntry)
 		{
 			seriesEntry.Liberate.Expanded = !seriesEntry.Liberate.Expanded;
 
@@ -138,9 +270,6 @@ namespace LibationAvalonia.ViewModels
 
 		public async Task Filter(string searchString)
 		{
-			if (searchString == FilterString)
-				return;
-
 			FilterString = searchString;
 
 			if (SOURCE.Count == 0)
@@ -153,8 +282,8 @@ namespace LibationAvalonia.ViewModels
 
 		private bool CollectionFilter(object item)
 		{
-			if (item is LibraryBookEntry lbe
-				&& lbe.IsEpisode
+			if (item is ILibraryBookEntry lbe
+				&& lbe.Liberate.IsEpisode
 				&& lbe.Parent?.Liberate?.Expanded != true)
 				return false;
 
@@ -163,13 +292,13 @@ namespace LibationAvalonia.ViewModels
 			return FilteredInGridEntries.Contains(item);
 		}
 
-		private static List<GridEntry> QueryResults(IEnumerable<GridEntry> entries, string searchString)
+		private static List<IGridEntry> QueryResults(IEnumerable<IGridEntry> entries, string searchString)
 		{
 			if (string.IsNullOrEmpty(searchString)) return null;
 
 			var searchResultSet = SearchEngineCommands.Search(searchString);
 
-			var booksFilteredIn = entries.BookEntries().Join(searchResultSet.Docs, lbe => lbe.AudibleProductId, d => d.ProductId, (lbe, d) => (GridEntry)lbe);
+			var booksFilteredIn = entries.BookEntries().Join(searchResultSet.Docs, lbe => lbe.AudibleProductId, d => d.ProductId, (lbe, d) => (IGridEntry)lbe);
 
 			//Find all series containing children that match the search criteria
 			var seriesFilteredIn = entries.SeriesEntries().Where(s => s.Children.Join(searchResultSet.Docs, lbe => lbe.AudibleProductId, d => d.ProductId, (lbe, d) => lbe).Any());
@@ -206,10 +335,10 @@ namespace LibationAvalonia.ViewModels
 			if (selectedBooks.Count == 0)
 				return;
 
-			var libraryBooks = selectedBooks.Select(rge => rge.LibraryBook).ToList();
+			var booksToRemove = selectedBooks.Select(rge => rge.LibraryBook).ToList();
 			var result = await MessageBox.ShowConfirmationDialog(
 				null,
-				libraryBooks,
+				booksToRemove,
 				// do not use `$` string interpolation. See impl.
 				"Are you sure you want to remove {0} from Libation's library?",
 				"Remove books from Libation?");
@@ -220,8 +349,6 @@ namespace LibationAvalonia.ViewModels
 			foreach (var book in selectedBooks)
 				book.PropertyChanged -= GridEntry_PropertyChanged;
 
-			var idsToRemove = libraryBooks.Select(lb => lb.Book.AudibleProductId).ToList();
-
 			void BindingList_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
 			{
 				if (e.Action != System.Collections.Specialized.NotifyCollectionChangedAction.Reset)
@@ -240,7 +367,7 @@ namespace LibationAvalonia.ViewModels
 
 			//The RemoveBooksAsync will fire LibrarySizeChanged, which calls ProductsDisplay2.Display(),
 			//so there's no need to remove books from the grid display here.
-			var removeLibraryBooks = await LibraryCommands.RemoveBooksAsync(idsToRemove);
+			await booksToRemove.RemoveBooksAsync();
 
 			RemovableCountChanged?.Invoke(this, 0);
 		}
@@ -286,7 +413,7 @@ namespace LibationAvalonia.ViewModels
 
 		private void GridEntry_PropertyChanged(object sender, PropertyChangedEventArgs e)
 		{
-			if (e.PropertyName == nameof(GridEntry.Remove) && sender is LibraryBookEntry lbEntry)
+			if (e.PropertyName == nameof(IGridEntry.Remove) && sender is ILibraryBookEntry)
 			{
 				int removeCount = GetAllBookEntries().Count(lbe => lbe.Remove is true);
 				RemovableCountChanged?.Invoke(this, removeCount);

Source/LibationAvalonia/ViewModels/QueryExtensions.cs

@@ -1,38 +0,0 @@
-using DataLayer;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace LibationAvalonia.ViewModels
-{
-#nullable enable
-	internal static class QueryExtensions
-	{
-		public static IEnumerable<LibraryBookEntry> BookEntries(this IEnumerable<GridEntry> gridEntries)
-			=> gridEntries.OfType<LibraryBookEntry>();
-
-		public static IEnumerable<SeriesEntry> SeriesEntries(this IEnumerable<GridEntry> gridEntries)
-			=> gridEntries.OfType<SeriesEntry>();
-
-		public static SeriesEntry? FindSeriesParent(this IEnumerable<GridEntry> gridEntries, LibraryBook seriesEpisode)
-		{
-			if (seriesEpisode.Book.SeriesLink is null) return null;
-
-			try
-			{
-				//Parent books will always have exactly 1 SeriesBook due to how
-				//they are imported in ApiExtended.getChildEpisodesAsync()
-				return gridEntries.SeriesEntries().FirstOrDefault(
-					lb =>
-					seriesEpisode.Book.SeriesLink.Any(
-						s => s.Series.AudibleSeriesId == lb.LibraryBook.Book.SeriesLink.Single().Series.AudibleSeriesId));
-			}
-			catch (Exception ex)
-			{
-				Serilog.Log.Error(ex, "Query error in {0}", nameof(FindSeriesParent));
-				return null;
-			}
-		}
-	}
-#nullable disable
-}

Source/LibationAvalonia/ViewModels/RowComparer.cs

@@ -1,5 +1,5 @@
 using Avalonia.Controls;
-using System;
+using LibationUiBase.GridView;
 using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -13,7 +13,7 @@ namespace LibationAvalonia.ViewModels
 	/// sorted by series index, ascending. Stable sorting is achieved by comparing the GridEntry.ListIndex
 	/// properties when 2 items compare equal.
 	/// </summary>
-	internal class RowComparer : IComparer, IComparer<GridEntry>, IComparer<object>
+	internal class RowComparer : IComparer, IComparer<IGridEntry>, IComparer<object>
 	{
 		private static readonly PropertyInfo HeaderCellPi = typeof(DataGridColumn).GetProperty("HeaderCell", BindingFlags.NonPublic | BindingFlags.Instance);
 		private static readonly PropertyInfo CurrentSortingStatePi = typeof(DataGridColumnHeader).GetProperty("CurrentSortingState", BindingFlags.NonPublic | BindingFlags.Instance);
@@ -33,22 +33,22 @@ namespace LibationAvalonia.ViewModels
 			if (x is not null && y is null) return 1;
 			if (x is null && y is null) return 0;
 
-			var geA = (GridEntry)x;
-			var geB = (GridEntry)y;
+			var geA = (IGridEntry)x;
+			var geB = (IGridEntry)y;
 
 			var sortDirection = GetSortOrder();
 
-			SeriesEntry parentA = null;
-			SeriesEntry parentB = null;
+			ISeriesEntry parentA = null;
+			ISeriesEntry parentB = null;
 
-			if (geA is LibraryBookEntry lbA && lbA.Parent is SeriesEntry seA)
+			if (geA is ILibraryBookEntry lbA && lbA.Parent is ISeriesEntry seA)
 				parentA = seA;
-			if (geB is LibraryBookEntry lbB && lbB.Parent is SeriesEntry seB)
+			if (geB is ILibraryBookEntry lbB && lbB.Parent is ISeriesEntry seB)
 				parentB = seB;
 
 			//both a and b are top-level grid entries
 			if (parentA is null && parentB is null)
-				return InternalCompare(geA, geB, sortDirection);
+				return InternalCompare(geA, geB);
 
 			//a is top-level, b is a child
 			if (parentA is null && parentB is not null)
@@ -57,7 +57,7 @@ namespace LibationAvalonia.ViewModels
 				if (parentB == geA)
 					return sortDirection is ListSortDirection.Ascending ? -1 : 1;
 				else
-					return InternalCompare(geA, parentB, sortDirection);
+					return InternalCompare(geA, parentB);
 			}
 
 			//a is a child, b is a top-level
@@ -67,7 +67,7 @@ namespace LibationAvalonia.ViewModels
 				if (parentA == geB)
 					return sortDirection is ListSortDirection.Ascending ? 1 : -1;
 				else
-					return InternalCompare(parentA, geB, sortDirection);
+					return InternalCompare(parentA, geB);
 			}
 
 			//both are children of the same series, always present in order of series index, ascending
@@ -75,29 +75,22 @@ namespace LibationAvalonia.ViewModels
 				return geA.SeriesIndex.CompareTo(geB.SeriesIndex) * (sortDirection is ListSortDirection.Ascending ? 1 : -1);
 
 			//a and b are children of different series.
-			return InternalCompare(parentA, parentB, sortDirection);
+			return InternalCompare(parentA, parentB);
 		}
 
 		//Avalonia doesn't expose the column's CurrentSortingState, so we must get it through reflection
 		private ListSortDirection? GetSortOrder()
 			=> CurrentSortingStatePi.GetValue(HeaderCellPi.GetValue(Column)) as ListSortDirection?;
 
-		private int InternalCompare(GridEntry x, GridEntry y, ListSortDirection? sortDirection)
+		private int InternalCompare(IGridEntry x, IGridEntry y)
 		{
 			var val1 = x.GetMemberValue(PropertyName);
 			var val2 = y.GetMemberValue(PropertyName);
 
-			var compareResult = x.GetMemberComparer(val1.GetType()).Compare(val1, val2);
-
-			//If items compare equal, compare them by their positions in the the list.
-			//This is how you achieve a stable sort.
-			if (compareResult == 0)
-				return x.ListIndex.CompareTo(y.ListIndex) * (sortDirection is ListSortDirection.Ascending ? 1 : -1);
-			else
-				return compareResult;
+			return x.GetMemberComparer(val1.GetType()).Compare(val1, val2); ;
 		}
 
-		public int Compare(GridEntry x, GridEntry y)
+		public int Compare(IGridEntry x, IGridEntry y)
 		{
 			return Compare((object)x, y);
 		}

Source/LibationAvalonia/ViewModels/SeriesEntry.cs

@@ -1,111 +0,0 @@
-using DataLayer;
-using Dinah.Core;
-using ReactiveUI;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-
-namespace LibationAvalonia.ViewModels
-{
-	/// <summary>The View Model for a LibraryBook that is ContentType.Parent</summary>
-	public class SeriesEntry : GridEntry
-	{
-		[Browsable(false)] public List<LibraryBookEntry> Children { get; }
-		[Browsable(false)] public override DateTime DateAdded => Children.Max(c => c.DateAdded);
-
-		private bool suspendCounting = false;
-		public void ChildRemoveUpdate()
-		{
-			if (suspendCounting) return;
-
-			var removeCount = Children.Count(c => c.Remove == true);
-
-			_remove = removeCount == 0 ? false : (removeCount == Children.Count ? true : null);
-			this.RaisePropertyChanged(nameof(Remove));
-		}
-
-		#region Model properties exposed to the view
-		public override bool? Remove
-		{
-			get => _remove;
-			set
-			{
-				_remove = value ?? false;
-
-				suspendCounting = true;
-
-				foreach (var item in Children)
-					item.Remove = value;
-
-				suspendCounting = false;
-				this.RaisePropertyChanged(nameof(Remove));
-			}
-		}
-
-		public override LiberateButtonStatus Liberate { get; }
-		public override BookTags BookTags { get; } = new();
-
-		public override bool IsSeries => true;
-		public override bool IsEpisode => false;
-		public override bool IsBook => false;
-
-		#endregion
-
-		public SeriesEntry(LibraryBook parent, IEnumerable<LibraryBook> children)
-		{
-			Liberate = new LiberateButtonStatus(IsSeries);
-			SeriesIndex = -1;
-			LibraryBook = parent;
-
-			LoadCover();
-
-			Children = children
-				.Select(c => new LibraryBookEntry(c) { Parent = this })
-				.OrderBy(c => c.SeriesIndex)
-				.ToList();
-
-			Title = Book.Title;
-			Series = Book.SeriesNames();
-			//Ratings are changed using Update(), which is a problem for Avalonia data bindings because
-			//the reference doesn't change. Clone the rating so that it updates within Avalonia properly.
-			_myRating = new Rating(Book.UserDefinedItem.Rating.OverallRating, Book.UserDefinedItem.Rating.PerformanceRating, Book.UserDefinedItem.Rating.StoryRating);
-			ProductRating = Book.Rating ?? new Rating(0, 0, 0);
-			Authors = Book.AuthorNames();
-			Narrators = Book.NarratorNames();
-			Category = string.Join(" > ", Book.CategoriesNames());
-			Misc = GetMiscDisplay(LibraryBook);
-			LongDescription = GetDescriptionDisplay(Book);
-			Description = TrimTextToWord(LongDescription, 62);
-
-			PurchaseDate = Children.Min(c => c.LibraryBook.DateAdded).ToString("d");
-			int bookLenMins = Children.Sum(c => c.LibraryBook.Book.LengthInMinutes);
-			Length = bookLenMins == 0 ? "" : $"{bookLenMins / 60} hr {bookLenMins % 60} min";
-		}
-
-
-		#region Data Sorting
-
-		/// <summary>Create getters for all member object values by name</summary>
-		protected override Dictionary<string, Func<object>> CreateMemberValueDictionary() => new()
-		{
-			{ nameof(Remove), () => Remove.HasValue ? Remove.Value ? RemoveStatus.Removed : RemoveStatus.NotRemoved : RemoveStatus.SomeRemoved },
-			{ nameof(Title), () => Book.TitleSortable() },
-			{ nameof(Series), () => Book.SeriesSortable() },
-			{ nameof(Length), () => Children.Sum(c => c.LibraryBook.Book.LengthInMinutes) },
-			{ nameof(MyRating), () => Book.UserDefinedItem.Rating.FirstScore() },
-			{ nameof(PurchaseDate), () => Children.Min(c => c.LibraryBook.DateAdded) },
-			{ nameof(ProductRating), () => Book.Rating.FirstScore() },
-			{ nameof(Authors), () => Authors },
-			{ nameof(Narrators), () => Narrators },
-			{ nameof(Description), () => Description },
-			{ nameof(Category), () => Category },
-			{ nameof(Misc), () => Misc },
-			{ nameof(BookTags), () => BookTags?.Tags ?? string.Empty },
-			{ nameof(Liberate), () => Liberate },
-			{ nameof(DateAdded), () => DateAdded },
-		};
-
-		#endregion
-	}
-}

Source/LibationAvalonia/Views/MainWindow.ProcessQueue.cs

@@ -47,6 +47,23 @@ namespace LibationAvalonia.Views
 				Serilog.Log.Logger.Error(ex, "An error occurred while handling the stop light button click for {libraryBook}", libraryBook);
 			}
 		}
+
+		public void ProductsDisplay_ConvertToMp3Clicked(object sender, LibraryBook libraryBook)
+		{
+			try
+			{
+				if (libraryBook.Book.UserDefinedItem.BookStatus is LiberatedStatus.Liberated)
+				{
+					Serilog.Log.Logger.Information("Begin single pdf backup of {libraryBook}", libraryBook);
+					SetQueueCollapseState(false);
+					_viewModel.ProcessQueue.AddConvertMp3(libraryBook);
+				}
+			}
+			catch (Exception ex)
+			{
+				Serilog.Log.Logger.Error(ex, "An error occurred while handling the stop light button click for {libraryBook}", libraryBook);
+			}
+		}
 		private void SetQueueCollapseState(bool collapsed)
 		{
 			_viewModel.QueueOpen = !collapsed;

Source/LibationAvalonia/Views/MainWindow.RemoveBooks.cs

@@ -1,4 +1,5 @@
 using AudibleUtilities;
+using LibationAvalonia.Dialogs;
 using System;
 using System.Linq;
 
@@ -15,6 +16,12 @@ namespace LibationAvalonia.Views
 			_viewModel.RemoveButtonsVisible = false;
 		}
 
+		public async void openTrashBinToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
+		{
+			var trash = new TrashBinDialog();
+			await trash.ShowDialog(this);
+		}
+
 		public void removeLibraryBooksToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
 		{
 			// if 0 accounts, this will not be visible

Source/LibationAvalonia/Views/MainWindow.ScanAuto.cs

@@ -9,7 +9,6 @@ using System.Linq;
 
 namespace LibationAvalonia.Views
 {
-	//DONE
 	public partial class MainWindow
 	{
 		private InterruptableTimer autoScanTimer;
@@ -17,11 +16,7 @@ namespace LibationAvalonia.Views
 		private void Configure_ScanAuto()
 		{
 			// creating InterruptableTimer inside 'Configure_' is a break from the pattern. As long as no one else needs to access or subscribe to it, this is ok
-			var hours = 0;
-			var minutes = 5;
-			var seconds = 0;
-			var _5_minutes = new TimeSpan(hours, minutes, seconds);
-			autoScanTimer = new InterruptableTimer(_5_minutes);
+			autoScanTimer = new InterruptableTimer(TimeSpan.FromMinutes(5));
 
 			// subscribe as async/non-blocking. I'd actually rather prefer blocking but real-world testing found that caused a deadlock in the AudibleAPI
 			autoScanTimer.Elapsed += async (_, __) =>
@@ -44,9 +39,9 @@ namespace LibationAvalonia.Views
 			};
 
 			_viewModel.AutoScanChecked = Configuration.Instance.AutoScan;
-
+			
 			// if enabled: begin on load
-			Load += startAutoScan;
+			Opened += startAutoScan;
 
 			// if new 'default' account is added, run autoscan
 			AccountsSettingsPersister.Saving += accountsPreSave;

Source/LibationAvalonia/Views/MainWindow.Update.cs

@@ -1,87 +0,0 @@
-using AppScaffolding;
-using LibationAvalonia.Dialogs;
-using LibationFileManager;
-using System;
-using System.IO;
-using System.Threading.Tasks;
-
-namespace LibationAvalonia.Views
-{
-    public partial class MainWindow
-    {
-		private void Configure_Update()
-		{
-			Opened += async (_, _) => await checkForUpdates();
-		}
-
-		private async Task checkForUpdates()
-		{
-			async Task<string> downloadUpdate(UpgradeProperties upgradeProperties)
-			{
-				if (upgradeProperties.ZipUrl is null)
-				{
-					Serilog.Log.Logger.Warning("Download link for new version not found");
-					return null;
-				}
-
-				//Silently download the update in the background, save it to a temp file.
-
-				var zipFile = Path.Combine(Path.GetTempPath(), Path.GetFileName(upgradeProperties.ZipUrl));
-
-				Serilog.Log.Logger.Information($"Downloading {zipFile}");
-
-				try
-				{
-					System.Net.Http.HttpClient cli = new();
-					using var fs = File.OpenWrite(zipFile);
-					using var dlStream = await cli.GetStreamAsync(new Uri(upgradeProperties.ZipUrl));
-					await dlStream.CopyToAsync(fs);
-				}
-				catch (Exception ex)
-				{
-					Serilog.Log.Logger.Error(ex, "Failed to download the update: {pdate}", upgradeProperties.ZipUrl);
-					return null;
-				}
-				return zipFile;
-			}
-
-			try
-			{
-				var upgradeProperties = await Task.Run(LibationScaffolding.GetLatestRelease);
-				if (upgradeProperties is null) return;
-
-				const string ignoreUpdate = "IgnoreUpdate";
-				var config = Configuration.Instance;
-
-				if (config.GetString(propertyName: ignoreUpdate) == upgradeProperties.LatestRelease.ToString())
-					return;
-
-				var interop = InteropFactory.Create();
-
-				if (!interop.CanUpdate)
-					Serilog.Log.Logger.Information("Can't perform update automatically");
-
-				var notificationResult = await new UpgradeNotificationDialog(upgradeProperties, interop.CanUpdate).ShowDialog<DialogResult>(this);
-
-				if (notificationResult == DialogResult.Ignore)
-					config.SetString(upgradeProperties.LatestRelease.ToString(), ignoreUpdate);
-
-				if (notificationResult != DialogResult.OK) return;
-
-				//Download the update file in the background,
-				string updateBundle = await downloadUpdate(upgradeProperties);
-
-				if (string.IsNullOrEmpty(updateBundle) || !File.Exists(updateBundle)) return;
-
-				//Install the update
-				Serilog.Log.Logger.Information($"Begin running auto-updater");
-				interop.InstallUpdate(updateBundle);
-				Serilog.Log.Logger.Information($"Completed running auto-updater");
-			}
-			catch (Exception ex)
-			{
-				Serilog.Log.Logger.Error(ex, "An error occured while checking for app updates.");
-			}
-		}
-    }
-}

Source/LibationAvalonia/Views/MainWindow.Upgrade.cs

@@ -0,0 +1,34 @@
+using Avalonia.Threading;
+using LibationAvalonia.Dialogs;
+using LibationUiBase;
+using System.Threading.Tasks;
+
+namespace LibationAvalonia.Views
+{
+    public partial class MainWindow
+    {
+		private void Configure_Upgrade()
+		{
+			setProgressVisible(false);
+#if !DEBUG
+			async Task upgradeAvailable(UpgradeEventArgs e)
+			{
+				var notificationResult = await new UpgradeNotificationDialog(e.UpgradeProperties, e.CapUpgrade).ShowDialogAsync(this);
+
+				e.Ignore = notificationResult == DialogResult.Ignore;
+				e.InstallUpgrade = notificationResult == DialogResult.OK;
+			}
+
+			var upgrader = new Upgrader();
+			upgrader.DownloadProgress += async (_, e) => await Dispatcher.UIThread.InvokeAsync(() => _viewModel.DownloadProgress = e.ProgressPercentage);
+			upgrader.DownloadBegin += async (_, _) => await Dispatcher.UIThread.InvokeAsync(() => setProgressVisible(true));
+			upgrader.DownloadCompleted += async (_, _) => await Dispatcher.UIThread.InvokeAsync(() => setProgressVisible(false));
+
+			Opened += async (_, _) => await upgrader.CheckForUpgradeAsync(upgradeAvailable);
+#endif
+		}
+
+		private void setProgressVisible(bool visible) => _viewModel.DownloadProgress = visible ? 0 : null;
+
+	}
+}

Source/LibationAvalonia/Views/MainWindow.VisibleBooks.cs

@@ -144,11 +144,8 @@ namespace LibationAvalonia.Views
 				"Remove books from Libation?",
 				MessageBoxDefaultButton.Button2);
 
-			if (confirmationResult != DialogResult.Yes)
-				return;
-
-			var visibleIds = visibleLibraryBooks.Select(lb => lb.Book.AudibleProductId).ToList();
-			await LibraryCommands.RemoveBooksAsync(visibleIds);
+			if (confirmationResult is DialogResult.Yes)
+				await visibleLibraryBooks.RemoveBooksAsync();
 		}
 		public async void ProductsDisplay_VisibleCountChanged(object sender, int qty)
 		{
@@ -157,9 +154,9 @@ namespace LibationAvalonia.Views
 			await Dispatcher.UIThread.InvokeAsync(setLiberatedVisibleMenuItem);
 		}
 		void setLiberatedVisibleMenuItem()
-			=> _viewModel.VisibleNotLiberated
-				= _viewModel.ProductsDisplay
-				.GetVisibleBookEntries()
-				.Count(lb => lb.Book.UserDefinedItem.BookStatus == LiberatedStatus.NotLiberated);
+		{
+			var libraryStats = LibraryCommands.GetCounts(_viewModel.ProductsDisplay.GetVisibleBookEntries());
+			_viewModel.VisibleNotLiberated = libraryStats.PendingBooks;
+		}
 	}
 }

Source/LibationAvalonia/Views/MainWindow.axaml

@@ -131,6 +131,7 @@
 						<MenuItem Click="accountsToolStripMenuItem_Click" Header="_Accounts..." />
 						<MenuItem Click="basicSettingsToolStripMenuItem_Click" Header="_Settings..." />
 						<Separator />
+						<MenuItem Click="openTrashBinToolStripMenuItem_Click" Header="Trash Bin" />
 						<MenuItem Click="launchHangoverToolStripMenuItem_Click" Header="Launch _Hangover" />
 						<Separator />
 						<MenuItem Click="aboutToolStripMenuItem_Click" Header="A_bout..." />
@@ -172,7 +173,12 @@
 
 				<StackPanel Grid.Column="2" Height="30" Orientation="Horizontal">
 					<Button Click="filterBtn_Click" Height="30" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Content="Filter"/>
-					<Button Padding="5,0,5,0" Click="ToggleQueueHideBtn_Click" Content="{Binding QueueHideButtonText}"/>
+					<Button Padding="5,0,5,0" Click="ToggleQueueHideBtn_Click">
+						<Panel>
+							<Image Stretch="None" IsVisible="{Binding !QueueOpen}" Source="/Assets/Arrows_left.png" />
+							<Image Stretch="None" IsVisible="{Binding QueueOpen}" Source="/Assets/Arrows_right.png" />
+						</Panel>
+					</Button>
 				</StackPanel>
 
 			</Grid>
@@ -188,14 +194,22 @@
 					<views:ProductsDisplay
 						Name="productsDisplay"
 						DataContext="{Binding ProductsDisplay}"						
-						LiberateClicked="ProductsDisplay_LiberateClicked"/>				
+						LiberateClicked="ProductsDisplay_LiberateClicked"
+						ConvertToMp3Clicked="ProductsDisplay_ConvertToMp3Clicked" />				
 				</SplitView>
 			</Border>
 
 			<!-- Bottom Status Strip -->
-			<Grid Grid.Row="3" Margin="0,10,0,0" VerticalAlignment="Bottom" ColumnDefinitions="*,Auto">
-				<TextBlock FontSize="14" Grid.Column="0" Text="{Binding VisibleCountText}" VerticalAlignment="Center" />
-				<TextBlock FontSize="14" Grid.Column="1" Text="{Binding StatusCountText}" VerticalAlignment="Center" HorizontalAlignment="Right" />		
+			<Grid Grid.Row="3" Margin="0,10,0,0" VerticalAlignment="Bottom" ColumnDefinitions="Auto,Auto,*,Auto">
+				<Grid.Styles>
+					<Style Selector="ProgressBar:horizontal">
+						<Setter Property="MinWidth" Value="100" />
+					</Style>
+				</Grid.Styles>
+				<TextBlock FontSize="14" Grid.Column="0" Text="Upgrading:" VerticalAlignment="Center" IsVisible="{Binding DownloadProgress, Converter={x:Static ObjectConverters.IsNotNull}}" />
+				<ProgressBar Grid.Column="1" Margin="5,0,10,0" VerticalAlignment="Stretch" Width="100" Value="{Binding DownloadProgress}" IsVisible="{Binding DownloadProgress, Converter={x:Static ObjectConverters.IsNotNull}}"/>
+				<TextBlock FontSize="14" Grid.Column="2" Text="{Binding VisibleCountText}" VerticalAlignment="Center" />
+				<TextBlock FontSize="14" Grid.Column="3" Text="{Binding LibraryStats.StatusString}" VerticalAlignment="Center" />		
 			</Grid>
 		</Grid>
 	</Border>

Source/LibationAvalonia/Views/MainWindow.axaml.cs

@@ -40,9 +40,7 @@ namespace LibationAvalonia.Views
 			Configure_Export();
 			Configure_Settings();
 			Configure_ProcessQueue();
-#if !DEBUG
-			Configure_Update();
-#endif
+			Configure_Upgrade();
 			Configure_Filter();
 			// misc which belongs in winforms app but doesn't have a UI element
 			Configure_NonUI();
@@ -53,7 +51,7 @@ namespace LibationAvalonia.Views
 			{
 				this.LibraryLoaded += MainWindow_LibraryLoaded;
 
-				LibraryCommands.LibrarySizeChanged += async (_, _) => await _viewModel.ProductsDisplay.DisplayBooksAsync(DbContexts.GetLibrary_Flat_NoTracking(includeParents: true));
+				LibraryCommands.LibrarySizeChanged += async (_, _) => await _viewModel.ProductsDisplay.UpdateGridAsync(DbContexts.GetLibrary_Flat_NoTracking(includeParents: true));
 				Closing += (_, _) => this.SaveSizeAndLocation(Configuration.Instance);
 			}
 			Closing += MainWindow_Closing;
@@ -69,7 +67,7 @@ namespace LibationAvalonia.Views
 			if (QuickFilters.UseDefault)
 				await performFilter(QuickFilters.Filters.FirstOrDefault());
 
-			await _viewModel.ProductsDisplay.DisplayBooksAsync(dbBooks);
+			_viewModel.ProductsDisplay.BindToGrid(dbBooks);
 		}
 
 		private void InitializeComponent()

Source/LibationAvalonia/Views/ProcessQueueControl.axaml.cs

@@ -15,7 +15,7 @@ namespace LibationAvalonia.Views
 {
 	public partial class ProcessQueueControl : UserControl
     {
-		private TrackedQueue<ProcessBookViewModel> Queue => _viewModel.Items;
+		private TrackedQueue<ProcessBookViewModel> Queue => _viewModel.Queue;
 		private ProcessQueueViewModel _viewModel => DataContext as ProcessQueueViewModel;
 
 		public ProcessQueueControl()
@@ -76,14 +76,14 @@ namespace LibationAvalonia.Views
 					},
 				};
 
-				vm.Items.Enqueue(testList);
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
-				vm.Items.MoveNext();
+				vm.Queue.Enqueue(testList);
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
+				vm.Queue.MoveNext();
 				return;
 			}
 			#endregion

Source/LibationAvalonia/Views/ProductsDisplay.axaml

@@ -32,11 +32,7 @@
 					<Setter Property="Padding" Value="4"/>
 				</Style>
 			</DataGrid.Styles>
-
-			<DataGrid.Resources>
-				<controls:StarStringConverter x:Key="starStringConverter" />
-			</DataGrid.Resources>
-
+			
 			<DataGrid.Columns>
 
 				<DataGridTemplateColumn
@@ -61,9 +57,13 @@
 				<controls:DataGridTemplateColumnExt CanUserSort="True" Width="75" Header="Liberate" SortMemberPath="Liberate" ClipboardContentBinding="{Binding Liberate.ToolTip}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Button Opacity="{Binding Opacity}" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" ToolTip.Tip="{Binding Liberate.ToolTip}">
-								<Image Source="{Binding Liberate.Image}" Stretch="None" />
-							</Button>
+							<Panel ToolTip.Tip="{Binding Liberate.ToolTip}">
+								<Button Opacity="{Binding Liberate.Opacity}" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" IsVisible="{Binding !Liberate.IsUnavailable}">
+									<Image Source="{Binding Liberate.ButtonImage}" Stretch="None" />
+								</Button>
+								<Image Source="{Binding Liberate.ButtonImage}" Stretch="None" IsVisible="{Binding Liberate.IsUnavailable}"/>
+								<Panel Background="{StaticResource DisabledGrayBrush}" IsVisible="{Binding Liberate.IsUnavailable}" />
+							</Panel>
 						</DataTemplate>
 					</DataGridTemplateColumn.CellTemplate>
 				</controls:DataGridTemplateColumnExt>
@@ -71,7 +71,7 @@
 				<DataGridTemplateColumn CanUserSort="False" Width="80" Header="Cover" SortMemberPath="Cover" ClipboardContentBinding="{Binding LibraryBook.Book.PictureLarge}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Image Opacity="{Binding Opacity}" Tapped="Cover_Click" Height="80" Source="{Binding Cover}" ToolTip.Tip="Click to see full size" />
+							<Image Opacity="{Binding Liberate.Opacity}" Tapped="Cover_Click" Height="80" Source="{Binding Cover}" ToolTip.Tip="Click to see full size" />
 						</DataTemplate>
 					</DataGridTemplateColumn.CellTemplate>
 				</DataGridTemplateColumn>
@@ -79,7 +79,7 @@
 				<controls:DataGridTemplateColumnExt MinWidth="150" Width="2*" Header="Title" CanUserSort="True" SortMemberPath="Title" ClipboardContentBinding="{Binding Title}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Title}" />
 							</Panel>
 						</DataTemplate>
@@ -89,7 +89,7 @@
 				<controls:DataGridTemplateColumnExt MinWidth="80" Width="1*" Header="Authors" CanUserSort="True" SortMemberPath="Authors" ClipboardContentBinding="{Binding Authors}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Authors}" />
 							</Panel>
 						</DataTemplate>
@@ -99,7 +99,7 @@
 				<controls:DataGridTemplateColumnExt MinWidth="80" Width="1*"  Header="Narrators" CanUserSort="True" SortMemberPath="Narrators" ClipboardContentBinding="{Binding Narrators}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Narrators}" />
 							</Panel>
 						</DataTemplate>
@@ -109,7 +109,7 @@
 				<controls:DataGridTemplateColumnExt Width="90"  Header="Length" CanUserSort="True" SortMemberPath="Length" ClipboardContentBinding="{Binding Length}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Length}" />
 							</Panel>
 						</DataTemplate>
@@ -119,7 +119,7 @@
 				<controls:DataGridTemplateColumnExt MinWidth="80" Width="1*" Header="Series" CanUserSort="True" SortMemberPath="Series" ClipboardContentBinding="{Binding Series}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Series}" />
 							</Panel>
 						</DataTemplate>
@@ -129,7 +129,7 @@
 				<controls:DataGridTemplateColumnExt MinWidth="100" Width="1*" Header="Description" CanUserSort="True" SortMemberPath="Description" ClipboardContentBinding="{Binding LongDescription}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}" Tapped="Description_Click" ToolTip.Tip="Click to see full description" >
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}" Tapped="Description_Click" ToolTip.Tip="Click to see full description" >
 								<TextBlock Text="{Binding Description}" FontSize="11" VerticalAlignment="Top" />
 							</Panel>
 						</DataTemplate>
@@ -139,7 +139,7 @@
 				<controls:DataGridTemplateColumnExt Width="100" Header="Category" CanUserSort="True" SortMemberPath="Category" ClipboardContentBinding="{Binding Category}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Category}" />
 							</Panel>
 						</DataTemplate>
@@ -151,14 +151,15 @@
 					IsReadOnly="true"
 					Width="115"
 					SortMemberPath="ProductRating" CanUserSort="True"
-					BackgroundBinding="{Binding BackgroundBrush}"
-					ClipboardContentBinding="{Binding ProductRating, Converter={StaticResource starStringConverter}}"
+					OpacityBinding="{Binding Liberate.Opacity}"
+					BackgroundBinding="{Binding Liberate.BackgroundBrush}"
+					ClipboardContentBinding="{Binding ProductRating}"
 					Binding="{Binding ProductRating}" />
 
 				<controls:DataGridTemplateColumnExt Width="90" Header="Purchase&#xA;Date" CanUserSort="True" SortMemberPath="PurchaseDate" ClipboardContentBinding="{Binding PurchaseDate}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding PurchaseDate}" />
 							</Panel>
 						</DataTemplate>
@@ -170,27 +171,38 @@
 					IsReadOnly="false"
 					Width="115"
 					SortMemberPath="MyRating" CanUserSort="True"
-					BackgroundBinding="{Binding BackgroundBrush}"
-					ClipboardContentBinding="{Binding MyRating, Converter={StaticResource starStringConverter}}"
+					OpacityBinding="{Binding Liberate.Opacity}"
+					BackgroundBinding="{Binding Liberate.BackgroundBrush}"
+					ClipboardContentBinding="{Binding MyRating}"					
 					Binding="{Binding MyRating, Mode=TwoWay}" />
 
 				<controls:DataGridTemplateColumnExt Width="135" Header="Misc" CanUserSort="True" SortMemberPath="Misc" ClipboardContentBinding="{Binding Misc}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Panel Background="{Binding BackgroundBrush}">
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}">
 								<TextBlock Text="{Binding Misc}" TextWrapping="WrapWithOverflow" FontSize="10" />
 							</Panel>
 						</DataTemplate>
 					</DataGridTemplateColumn.CellTemplate>
 				</controls:DataGridTemplateColumnExt>
-
-				<controls:DataGridTemplateColumnExt CanUserSort="True" Width="100" Header="Tags" SortMemberPath="BookTags" ClipboardContentBinding="{Binding BookTags.Tags}">
+				
+				<controls:DataGridTemplateColumnExt Width="102" Header="Last&#xA;Download" CanUserSort="True" SortMemberPath="LastDownload" ClipboardContentBinding="{Binding LastDownload}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Button IsVisible="{Binding !IsSeries}" Width="100" Height="80" Click="OnTagsButtonClick" ToolTip.Tip="Click to edit tags" >
-								<Panel>
-									<Image IsVisible="{Binding !BookTags.HasTags}" Stretch="None" Source="/Assets/edit_25x25.png" />
-									<TextBlock IsVisible="{Binding BookTags.HasTags}" FontSize="12" TextWrapping="WrapWithOverflow" Text="{Binding BookTags.Tags}"/>
+							<Panel Opacity="{Binding Liberate.Opacity}" Background="{Binding Liberate.BackgroundBrush}" ToolTip.Tip="{Binding LastDownload.ToolTipText}" DoubleTapped="Version_DoubleClick">
+								<TextBlock Text="{Binding LastDownload}" TextWrapping="WrapWithOverflow" FontSize="10" />
+							</Panel>
+						</DataTemplate>
+					</DataGridTemplateColumn.CellTemplate>
+				</controls:DataGridTemplateColumnExt>
+
+				<controls:DataGridTemplateColumnExt CanUserSort="True" Width="100" Header="Tags" SortMemberPath="BookTags" ClipboardContentBinding="{Binding BookTags}">
+					<DataGridTemplateColumn.CellTemplate>
+						<DataTemplate>
+							<Button IsVisible="{Binding !Liberate.IsSeries}" Width="100" Height="80" Click="OnTagsButtonClick" ToolTip.Tip="Click to edit tags" >
+								<Panel Opacity="{Binding Liberate.Opacity}">
+									<Image IsVisible="{Binding BookTags, Converter={x:Static StringConverters.IsNullOrEmpty}}" Stretch="None" Source="/Assets/edit_25x25.png" />
+									<TextBlock IsVisible="{Binding BookTags, Converter={x:Static StringConverters.IsNotNullOrEmpty}}" FontSize="12" TextWrapping="WrapWithOverflow" HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding BookTags}"/>
 								</Panel>
 							</Button>
 						</DataTemplate>

Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using ApplicationServices;
 using Avalonia;
 using Avalonia.Controls;
@@ -13,12 +9,18 @@ using LibationAvalonia.Controls;
 using LibationAvalonia.Dialogs;
 using LibationAvalonia.ViewModels;
 using LibationFileManager;
+using LibationUiBase.GridView;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
 
 namespace LibationAvalonia.Views
 {
 	public partial class ProductsDisplay : UserControl
 	{
 		public event EventHandler<LibraryBook> LiberateClicked;
+		public event EventHandler<LibraryBook> ConvertToMp3Clicked;
 
 		private ProductsDisplayViewModel _viewModel => DataContext as ProductsDisplayViewModel;
 		ImageDisplayDialog imageDisplayDialog;
@@ -30,20 +32,25 @@ namespace LibationAvalonia.Views
 			if (Design.IsDesignMode)
 			{
 				using var context = DbContexts.GetContext();
-				List<LibraryBook> sampleEntries = new()
+				List<LibraryBook> sampleEntries;
+				try
 				{
-					//context.GetLibraryBook_Flat_NoTracking("B00DCD0OXU"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4IM1G"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4IWVG"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4JA2Q"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4NUPO"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4NMX4"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4NOZ0"),
-					context.GetLibraryBook_Flat_NoTracking("B017WJ5ZK6")
-				};
+					sampleEntries = new()
+					{
+						//context.GetLibraryBook_Flat_NoTracking("B00DCD0OXU"),try{
+						context.GetLibraryBook_Flat_NoTracking("B017WJ5ZK6"),
+						context.GetLibraryBook_Flat_NoTracking("B017V4IWVG"),
+						context.GetLibraryBook_Flat_NoTracking("B017V4JA2Q"),
+						context.GetLibraryBook_Flat_NoTracking("B017V4NUPO"),
+						context.GetLibraryBook_Flat_NoTracking("B017V4NMX4"),
+						context.GetLibraryBook_Flat_NoTracking("B017V4NOZ0"),
+						context.GetLibraryBook_Flat_NoTracking("B017WJ5ZK6")
+					};
+				}
+				catch { sampleEntries = new(); }
 
 				var pdvm = new ProductsDisplayViewModel();
-				_ = pdvm.DisplayBooksAsync(sampleEntries);
+				pdvm.BindToGrid(sampleEntries);
 				DataContext = pdvm;
 
 				return;
@@ -55,7 +62,7 @@ namespace LibationAvalonia.Views
 			{
 				column.CustomSortComparer = new RowComparer(column);
 			}
-		}		
+		}
 
 		private void RemoveColumn_PropertyChanged(object sender, AvaloniaPropertyChangedEventArgs e)
 		{
@@ -77,37 +84,37 @@ namespace LibationAvalonia.Views
 		#region Cell Context Menu
 
 		public void ProductsGrid_CellContextMenuStripNeeded(object sender, DataGridCellContextMenuStripNeededEventArgs args)
-        {
-            // stop light
-            if (args.Column.SortMemberPath == "Liberate")
+		{
+			// stop light
+			if (args.Column.SortMemberPath == "Liberate")
 			{
 				var entry = args.GridEntry;
 
-                if (entry.IsSeries)
+				if (entry.Liberate.IsSeries)
 					return;
 
-                var setDownloadMenuItem = new MenuItem()
-                {
-                    Header = "Set Download status to '_Downloaded'",
-                    IsEnabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.Liberated
-                };
-                setDownloadMenuItem.Click += (_, __) => entry.Book.UpdateBookStatus(LiberatedStatus.Liberated);
+				var setDownloadMenuItem = new MenuItem()
+				{
+					Header = "Set Download status to '_Downloaded'",
+					IsEnabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.Liberated
+				};
+				setDownloadMenuItem.Click += (_, __) => entry.Book.UpdateBookStatus(LiberatedStatus.Liberated);
 
-                var setNotDownloadMenuItem = new MenuItem()
-                {
-                    Header = "Set Download status to '_Not Downloaded'",
-                    IsEnabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated
-                };
-                setNotDownloadMenuItem.Click += (_, __) => entry.Book.UpdateBookStatus(LiberatedStatus.NotLiberated);
+				var setNotDownloadMenuItem = new MenuItem()
+				{
+					Header = "Set Download status to '_Not Downloaded'",
+					IsEnabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated
+				};
+				setNotDownloadMenuItem.Click += (_, __) => entry.Book.UpdateBookStatus(LiberatedStatus.NotLiberated);
 
-                var removeMenuItem = new MenuItem() { Header = "_Remove from library" };
-				removeMenuItem.Click += async (_, __) => await Task.Run(() => LibraryCommands.RemoveBook(entry.AudibleProductId));
+				var removeMenuItem = new MenuItem() { Header = "_Remove from library" };
+				removeMenuItem.Click += async (_, __) => await Task.Run(entry.LibraryBook.RemoveBook);
 
 				var locateFileMenuItem = new MenuItem() { Header = "_Locate file..." };
-                locateFileMenuItem.Click += async (_, __) =>
-                {
-                    try
-                    {
+				locateFileMenuItem.Click += async (_, __) =>
+				{
+					try
+					{
 						var openFileDialogOptions = new FilePickerOpenOptions
 						{
 							Title = $"Locate the audio file for '{entry.Book.Title}'",
@@ -122,15 +129,21 @@ namespace LibationAvalonia.Views
 						var selectedFiles = await this.GetParentWindow().StorageProvider.OpenFilePickerAsync(openFileDialogOptions);
 						var selectedFile = selectedFiles.SingleOrDefault();
 
-                        if (selectedFile?.TryGetUri(out var uri) is true)
-                            FilePathCache.Insert(entry.AudibleProductId, uri.LocalPath);
-                    }
-                    catch (Exception ex)
-                    {
-                        var msg = "Error saving book's location";
-                        await MessageBox.ShowAdminAlert(null, msg, msg, ex);
-                    }
-                };
+						if (selectedFile?.TryGetUri(out var uri) is true)
+							FilePathCache.Insert(entry.AudibleProductId, uri.LocalPath);
+					}
+					catch (Exception ex)
+					{
+						var msg = "Error saving book's location";
+						await MessageBox.ShowAdminAlert(null, msg, msg, ex);
+					}
+				};
+				var convertToMp3MenuItem = new MenuItem
+				{
+					Header = "_Convert to Mp3",
+					IsEnabled = entry.Book.UserDefinedItem.BookStatus is LiberatedStatus.Liberated
+				};
+				convertToMp3MenuItem.Click += (_, _) => ConvertToMp3Clicked?.Invoke(this, entry.LibraryBook);
 
 				var bookRecordMenuItem = new MenuItem { Header = "View _Bookmarks/Clips" };
 				bookRecordMenuItem.Click += async (_, _) => await new BookRecordsDialog(entry.LibraryBook).ShowDialog(VisualRoot as Window);
@@ -141,10 +154,11 @@ namespace LibationAvalonia.Views
 					setNotDownloadMenuItem,
 					removeMenuItem,
 					locateFileMenuItem,
+					convertToMp3MenuItem,
 					new Separator(),
 					bookRecordMenuItem
 				});
-            }
+			}
 			else
 			{
 				// any non-stop light column
@@ -187,7 +201,7 @@ namespace LibationAvalonia.Views
 			{
 				var itemName = column.SortMemberPath;
 
-				if (itemName == nameof(GridEntry.Remove))
+				if (itemName == nameof(IGridEntry.Remove))
 					continue;
 
 				menuItems.Add
@@ -278,7 +292,7 @@ namespace LibationAvalonia.Views
 		{
 			var button = args.Source as Button;
 
-			if (button.DataContext is SeriesEntry sEntry)
+			if (button.DataContext is ISeriesEntry sEntry)
 			{
 				await _viewModel.ToggleSeriesExpanded(sEntry);
 
@@ -286,7 +300,7 @@ namespace LibationAvalonia.Views
 				//to the topright cell. Reset focus onto the clicked button's cell.
 				(sender as Button).Parent?.Focus();
 			}
-			else if (button.DataContext is LibraryBookEntry lbEntry)
+			else if (button.DataContext is ILibraryBookEntry lbEntry)
 			{
 				LiberateClicked?.Invoke(this, lbEntry.LibraryBook);
 			}
@@ -298,9 +312,15 @@ namespace LibationAvalonia.Views
 				imageDisplayDialog.Close();
 		}
 
+		public void Version_DoubleClick(object sender, Avalonia.Input.TappedEventArgs args)
+		{
+			if (sender is Control panel && panel.DataContext is ILibraryBookEntry lbe && lbe.LastDownload.IsValid)
+				lbe.LastDownload.OpenReleaseUrl();
+		}
+
 		public void Cover_Click(object sender, Avalonia.Input.TappedEventArgs args)
 		{
-			if (sender is not Image tblock || tblock.DataContext is not GridEntry gEntry)
+			if (sender is not Image tblock || tblock.DataContext is not IGridEntry gEntry)
 				return;
 
 			if (imageDisplayDialog is null || !imageDisplayDialog.IsVisible)
@@ -313,7 +333,7 @@ namespace LibationAvalonia.Views
 			void PictureCached(object sender, PictureCachedEventArgs e)
 			{
 				if (e.Definition.PictureId == picDef.PictureId)
-					imageDisplayDialog.CoverBytes = e.Picture;
+					imageDisplayDialog.SetCoverBytes(e.Picture);
 
 				PictureStorage.PictureCached -= PictureCached;
 			}
@@ -328,7 +348,7 @@ namespace LibationAvalonia.Views
 			imageDisplayDialog.BookSaveDirectory = AudibleFileStorage.Audio.GetDestinationDirectory(gEntry.LibraryBook);
 			imageDisplayDialog.PictureFileName = System.IO.Path.GetFileName(AudibleFileStorage.Audio.GetBooksDirectoryFilename(gEntry.LibraryBook, ".jpg"));
 			imageDisplayDialog.Title = windowTitle;
-			imageDisplayDialog.CoverBytes = initialImageBts;
+			imageDisplayDialog.SetCoverBytes(initialImageBts);
 
 			if (!isDefault)
 				PictureStorage.PictureCached -= PictureCached;
@@ -339,7 +359,7 @@ namespace LibationAvalonia.Views
 
 		public void Description_Click(object sender, Avalonia.Input.TappedEventArgs args)
 		{
-			if (sender is Control tblock && tblock.DataContext is GridEntry gEntry)
+			if (sender is Control tblock && tblock.DataContext is IGridEntry gEntry)
 			{
 				var pt = tblock.PointToScreen(tblock.Bounds.TopRight);
 				var displayWindow = new DescriptionDisplayDialog
@@ -368,7 +388,7 @@ namespace LibationAvalonia.Views
 		{
 			var button = args.Source as Button;
 
-			if (button.DataContext is LibraryBookEntry lbEntry && VisualRoot is Window window)
+			if (button.DataContext is ILibraryBookEntry lbEntry && VisualRoot is Window window)
 			{
 				if (bookDetailsForm is null || !bookDetailsForm.IsVisible)
 				{

Source/LibationCli/LibationCli.csproj

@@ -11,13 +11,7 @@
 	</PropertyGroup>
 
 	<PropertyGroup>
-		<!--
-    HACK FOR COMPILER BUG  2021-09-14. Hopefully will be fixed in future versions
-    - Not using SatelliteResourceLanguages will load all language packs: works
-    - Specifying 'en' semicolon 1 more should load 1 language pack: works
-    - Specifying only 'en' should load no language packs: broken, still loads all
-    -->
-		<SatelliteResourceLanguages>en;es</SatelliteResourceLanguages>
+		<SatelliteResourceLanguages>en</SatelliteResourceLanguages>
 	</PropertyGroup>
 
 	<!--

Source/LibationFileManager/Configuration.Environment.cs

@@ -20,6 +20,8 @@ namespace LibationFileManager
 		public static bool IsWindows { get; } = OperatingSystem.IsWindows();
         public static bool IsLinux { get; } = OperatingSystem.IsLinux();
         public static bool IsMacOs { get; } = OperatingSystem.IsMacOS();
+		public static Version LibationVersion { get; private set; }
+		public static void SetLibationVersion(Version version) => LibationVersion = version;
 
 		public static OS OS { get; }
 			= IsLinux ? OS.Linux

Source/LibationFileManager/Configuration.PersistentSettings.cs

@@ -73,7 +73,7 @@ namespace LibationFileManager
 
 		public bool Exists(string propertyName) => persistentDictionary.Exists(propertyName);
 
-		[Description("Set cover art as the folder's icon. (Windows only)")]
+		[Description("Set cover art as the folder's icon. (Windows and macOS only)")]
 		public bool UseCoverAsFolderIcon { get => GetNonString(defaultValue: false); set => SetNonString(value); }
 
 		[Description("Use the beta version of Libation\r\nNew and experimental features, but probably buggy.\r\n(requires restart to take effect)")]
@@ -121,6 +121,12 @@ namespace LibationFileManager
 		[Description("Lame encoder target. true = Bitrate, false = Quality")]
 		public bool LameTargetBitrate { get => GetNonString(defaultValue: false); set => SetNonString(value); }
 
+		[Description("Maximum audio sample rate")]
+		public AAXClean.SampleRate MaxSampleRate { get => GetNonString(defaultValue: AAXClean.SampleRate.Hz_44100); set => SetNonString(value); }
+
+		[Description("Lame encoder quality")]
+		public NAudio.Lame.EncoderQuality LameEncoderQuality { get => GetNonString(defaultValue: NAudio.Lame.EncoderQuality.High); set => SetNonString(value); }
+
 		[Description("Lame encoder downsamples to mono")]
 		public bool LameDownsampleMono {  get => GetNonString(defaultValue: true); set => SetNonString(value); }
 

Source/LibationFileManager/IInteropFunctions.cs

@@ -8,7 +8,7 @@ namespace LibationFileManager
         void SetFolderIcon(string image, string directory);
         void DeleteFolderIcon(string directory);
         Process RunAsRoot(string exe, string args);
-        void InstallUpdate(string updateBundle);
-        bool CanUpdate { get; }
+        void InstallUpgrade(string upgradeBundle);
+        bool CanUpgrade { get; }
     }
 }