incr ver

Change assembly loadig

Source/AppScaffolding/AppScaffolding.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-    <Version>8.4.1.1</Version>
+    <Version>8.4.3.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Octokit" Version="2.0.0" />

Source/DtoImporterService/BookImporter.cs

@@ -84,7 +84,8 @@ namespace DtoImporterService
 			// nested logic is required so order of names is retained. else, contributors may appear in the order they were inserted into the db
 			var authors = item
 				.Authors
-				.Select(a => contributorImporter.Cache[a.Name])
+                .DistinctBy(a => a.Name)
+                .Select(a => contributorImporter.Cache[a.Name])
 				.ToList();
 
 			var narrators
@@ -94,7 +95,8 @@ namespace DtoImporterService
 				// nested logic is required so order of names is retained. else, contributors may appear in the order they were inserted into the db
 				: item
 					.Narrators
-					.Select(n => contributorImporter.Cache[n.Name])
+					.DistinctBy(a => a.Name)
+                    .Select(n => contributorImporter.Cache[n.Name])
 					.ToList();
 
 			// categories are laid out for a breadcrumb. category is 1st, subcategory is 2nd

Source/FileLiberator/DownloadDecryptBook.cs

@@ -14,188 +14,188 @@ using LibationFileManager;
 
 namespace FileLiberator
 {
-	public class DownloadDecryptBook : AudioDecodable
-	{
-		public override string Name => "Download & Decrypt";
-		private AudiobookDownloadBase abDownloader;
+    public class DownloadDecryptBook : AudioDecodable
+    {
+        public override string Name => "Download & Decrypt";
+        private AudiobookDownloadBase abDownloader;
 
-		public override bool Validate(LibraryBook libraryBook) => !libraryBook.Book.Audio_Exists();
+        public override bool Validate(LibraryBook libraryBook) => !libraryBook.Book.Audio_Exists();
 
-		public override Task CancelAsync() => abDownloader?.CancelAsync() ?? Task.CompletedTask;
+        public override Task CancelAsync() => abDownloader?.CancelAsync() ?? Task.CompletedTask;
 
-		public override async Task<StatusHandler> ProcessAsync(LibraryBook libraryBook)
-		{
-			var entries = new List<FilePathCache.CacheEntry>();
-			// these only work so minimally b/c CacheEntry is a record.
-			// in case of parallel decrypts, only capture the ones for this book id.
-			// if user somehow starts multiple decrypts of the same book in parallel: on their own head be it
-			void FilePathCache_Inserted(object sender, FilePathCache.CacheEntry e)
-			{
-				if (e.Id.EqualsInsensitive(libraryBook.Book.AudibleProductId))
-					entries.Add(e);
-			}
-			void FilePathCache_Removed(object sender, FilePathCache.CacheEntry e)
-			{
-				if (e.Id.EqualsInsensitive(libraryBook.Book.AudibleProductId))
-					entries.Remove(e);
-			}
+        public override async Task<StatusHandler> ProcessAsync(LibraryBook libraryBook)
+        {
+            var entries = new List<FilePathCache.CacheEntry>();
+            // these only work so minimally b/c CacheEntry is a record.
+            // in case of parallel decrypts, only capture the ones for this book id.
+            // if user somehow starts multiple decrypts of the same book in parallel: on their own head be it
+            void FilePathCache_Inserted(object sender, FilePathCache.CacheEntry e)
+            {
+                if (e.Id.EqualsInsensitive(libraryBook.Book.AudibleProductId))
+                    entries.Add(e);
+            }
+            void FilePathCache_Removed(object sender, FilePathCache.CacheEntry e)
+            {
+                if (e.Id.EqualsInsensitive(libraryBook.Book.AudibleProductId))
+                    entries.Remove(e);
+            }
 
-			OnBegin(libraryBook);
+            OnBegin(libraryBook);
 
-			try
-			{
-				if (libraryBook.Book.Audio_Exists())
-					return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
+            try
+            {
+                if (libraryBook.Book.Audio_Exists())
+                    return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
 
-				bool success = false;
-				try
-				{
-					FilePathCache.Inserted += FilePathCache_Inserted;
-					FilePathCache.Removed += FilePathCache_Removed;
+                bool success = false;
+                try
+                {
+                    FilePathCache.Inserted += FilePathCache_Inserted;
+                    FilePathCache.Removed += FilePathCache_Removed;
 
-					success = await downloadAudiobookAsync(libraryBook);
-				}
-				finally
-				{
-					FilePathCache.Inserted -= FilePathCache_Inserted;
-					FilePathCache.Removed -= FilePathCache_Removed;
-				}
+                    success = await downloadAudiobookAsync(libraryBook);
+                }
+                finally
+                {
+                    FilePathCache.Inserted -= FilePathCache_Inserted;
+                    FilePathCache.Removed -= FilePathCache_Removed;
+                }
 
-				// decrypt failed
-				if (!success)
-				{
-					foreach (var tmpFile in entries.Where(f => f.FileType != FileType.AAXC))
-						FileUtility.SaferDelete(tmpFile.Path);
+                // decrypt failed
+                if (!success)
+                {
+                    foreach (var tmpFile in entries.Where(f => f.FileType != FileType.AAXC))
+                        FileUtility.SaferDelete(tmpFile.Path);
 
-					return abDownloader?.IsCanceled == true ?
-						new StatusHandler { "Cancelled" } : 
-						new StatusHandler { "Decrypt failed" };
-				}
+                    return abDownloader?.IsCanceled == 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));
+                // 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));
 
-				// decrypt failed
-				if (finalStorageDir is null)
-					return new StatusHandler { "Cannot find final audio file after decryption" };
+                // decrypt failed
+                if (finalStorageDir is null)
+                    return new StatusHandler { "Cannot find final audio file after decryption" };
 
-				if (Configuration.Instance.DownloadCoverArt)
-					downloadCoverArt(libraryBook);
+                if (Configuration.Instance.DownloadCoverArt)
+                    downloadCoverArt(libraryBook);
 
-				// contains logic to check for config setting and OS
-				WindowsDirectory.SetCoverAsFolderIcon(pictureId: libraryBook.Book.PictureId, directory: finalStorageDir);
+                // contains logic to check for config setting and OS
+                WindowsDirectory.SetCoverAsFolderIcon(pictureId: libraryBook.Book.PictureId, directory: finalStorageDir);
 
                 libraryBook.Book.UpdateBookStatus(LiberatedStatus.Liberated);
 
-				return new StatusHandler();
-			}
-			finally
-			{
-				OnCompleted(libraryBook);
-			}
-		}
+                return new StatusHandler();
+            }
+            finally
+            {
+                OnCompleted(libraryBook);
+            }
+        }
 
-		private async Task<bool> downloadAudiobookAsync(LibraryBook libraryBook)
-		{
-			var config = Configuration.Instance;
+        private async Task<bool> downloadAudiobookAsync(LibraryBook libraryBook)
+        {
+            var config = Configuration.Instance;
 
-			downloadValidation(libraryBook);
+            downloadValidation(libraryBook);
 
-			var api = await libraryBook.GetApiAsync();
-			var contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId);
-			var dlOptions = BuildDownloadOptions(libraryBook, config, contentLic);
+            var api = await libraryBook.GetApiAsync();
+            var contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId);
+            var dlOptions = BuildDownloadOptions(libraryBook, config, contentLic);
 
-			var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(libraryBook, dlOptions.OutputFormat.ToString().ToLower());
-			var cacheDir = AudibleFileStorage.DownloadsInProgressDirectory;
+            var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(libraryBook, dlOptions.OutputFormat.ToString().ToLower());
+            var cacheDir = AudibleFileStorage.DownloadsInProgressDirectory;
 
-			if (contentLic.DrmType != AudibleApi.Common.DrmType.Adrm)
-				abDownloader = new UnencryptedAudiobookDownloader(outFileName, cacheDir, dlOptions);
-			else
-			{
-				AaxcDownloadConvertBase converter
-					= config.SplitFilesByChapter ? 
-					new AaxcDownloadMultiConverter(outFileName, cacheDir, dlOptions) :
-					new AaxcDownloadSingleConverter(outFileName, cacheDir, dlOptions);
+            if (contentLic.DrmType != AudibleApi.Common.DrmType.Adrm)
+                abDownloader = new UnencryptedAudiobookDownloader(outFileName, cacheDir, dlOptions);
+            else
+            {
+                AaxcDownloadConvertBase converter
+                    = config.SplitFilesByChapter ?
+                    new AaxcDownloadMultiConverter(outFileName, cacheDir, dlOptions) :
+                    new AaxcDownloadSingleConverter(outFileName, cacheDir, dlOptions);
 
-				if (config.AllowLibationFixup)
-					converter.RetrievedMetadata += (_, tags) => tags.Generes = string.Join(", ", libraryBook.Book.CategoriesNames());
+                if (config.AllowLibationFixup)
+                    converter.RetrievedMetadata += (_, tags) => tags.Generes = string.Join(", ", libraryBook.Book.CategoriesNames());
 
-				abDownloader = converter;
-			}
+                abDownloader = converter;
+            }
 
-			abDownloader.DecryptProgressUpdate += OnStreamingProgressChanged;
-			abDownloader.DecryptTimeRemaining += OnStreamingTimeRemaining;
-			abDownloader.RetrievedTitle += OnTitleDiscovered;
-			abDownloader.RetrievedAuthors += OnAuthorsDiscovered;
-			abDownloader.RetrievedNarrators += OnNarratorsDiscovered;
-			abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
-			abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
+            abDownloader.DecryptProgressUpdate += OnStreamingProgressChanged;
+            abDownloader.DecryptTimeRemaining += OnStreamingTimeRemaining;
+            abDownloader.RetrievedTitle += OnTitleDiscovered;
+            abDownloader.RetrievedAuthors += OnAuthorsDiscovered;
+            abDownloader.RetrievedNarrators += OnNarratorsDiscovered;
+            abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
+            abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
 
-			// REAL WORK DONE HERE
-			var success = await abDownloader.RunAsync();
+            // REAL WORK DONE HERE
+            var success = await abDownloader.RunAsync();
 
-			return success;
-		}
+            return success;
+        }
 
-		private DownloadOptions BuildDownloadOptions(LibraryBook libraryBook, Configuration config, AudibleApi.Common.ContentLicense contentLic)
-		{
-			//I assume if ContentFormat == "MPEG" that the delivered file is an unencrypted mp3.
-			//I also assume that if DrmType != Adrm, the file will be an mp3.
-			//These assumptions may be wrong, and only time and bug reports will tell.
+        private DownloadOptions BuildDownloadOptions(LibraryBook libraryBook, Configuration config, AudibleApi.Common.ContentLicense contentLic)
+        {
+            //I assume if ContentFormat == "MPEG" that the delivered file is an unencrypted mp3.
+            //I also assume that if DrmType != Adrm, the file will be an mp3.
+            //These assumptions may be wrong, and only time and bug reports will tell.
 
-			bool encrypted = contentLic.DrmType == AudibleApi.Common.DrmType.Adrm;
+            bool encrypted = contentLic.DrmType == AudibleApi.Common.DrmType.Adrm;
 
-			var outputFormat = !encrypted || (config.AllowLibationFixup && config.DecryptToLossy) ?
-					 OutputFormat.Mp3 : OutputFormat.M4b;
+            var outputFormat = !encrypted || (config.AllowLibationFixup && config.DecryptToLossy) ?
+                     OutputFormat.Mp3 : OutputFormat.M4b;
 
-			long chapterStartMs = config.StripAudibleBrandAudio ?
-				contentLic.ContentMetadata.ChapterInfo.BrandIntroDurationMs : 0;
+            long chapterStartMs = config.StripAudibleBrandAudio ?
+                contentLic.ContentMetadata.ChapterInfo.BrandIntroDurationMs : 0;
 
-			var dlOptions = new DownloadOptions
-				 (
-					libraryBook,
-					contentLic?.ContentMetadata?.ContentUrl?.OfflineUrl,
-					Resources.USER_AGENT
-				 )
-			{
-				AudibleKey = contentLic?.Voucher?.Key,
-				AudibleIV = contentLic?.Voucher?.Iv,
-				OutputFormat = outputFormat,
-				TrimOutputToChapterLength = config.AllowLibationFixup && config.StripAudibleBrandAudio,
-				RetainEncryptedFile = config.RetainAaxFile && encrypted,
-				StripUnabridged = config.AllowLibationFixup && config.StripUnabridged,
-				Downsample = config.AllowLibationFixup && config.LameDownsampleMono,
-				MatchSourceBitrate = config.AllowLibationFixup && config.LameMatchSourceBR && config.LameTargetBitrate,
-				CreateCueSheet = config.CreateCueSheet,
-				LameConfig = GetLameOptions(config),
-				ChapterInfo = new AAXClean.ChapterInfo(TimeSpan.FromMilliseconds(chapterStartMs)),
-				FixupFile = config.AllowLibationFixup
-			};
+            var dlOptions = new DownloadOptions
+                 (
+                    libraryBook,
+                    contentLic?.ContentMetadata?.ContentUrl?.OfflineUrl,
+                    Resources.USER_AGENT
+                 )
+            {
+                AudibleKey = contentLic?.Voucher?.Key,
+                AudibleIV = contentLic?.Voucher?.Iv,
+                OutputFormat = outputFormat,
+                TrimOutputToChapterLength = config.AllowLibationFixup && config.StripAudibleBrandAudio,
+                RetainEncryptedFile = config.RetainAaxFile && encrypted,
+                StripUnabridged = config.AllowLibationFixup && config.StripUnabridged,
+                Downsample = config.AllowLibationFixup && config.LameDownsampleMono,
+                MatchSourceBitrate = config.AllowLibationFixup && config.LameMatchSourceBR && config.LameTargetBitrate,
+                CreateCueSheet = config.CreateCueSheet,
+                LameConfig = GetLameOptions(config),
+                ChapterInfo = new AAXClean.ChapterInfo(TimeSpan.FromMilliseconds(chapterStartMs)),
+                FixupFile = config.AllowLibationFixup
+            };
 
-			var chapters = flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters).OrderBy(c => c.StartOffsetMs).ToList();
+            var chapters = flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters).OrderBy(c => c.StartOffsetMs).ToList();
 
-			if (config.MergeOpeningAndEndCredits)
-				combineCredits(chapters);
+            if (config.MergeOpeningAndEndCredits)
+                combineCredits(chapters);
 
-			for (int i = 0; i < chapters.Count; i++)
-			{
-				var chapter = chapters[i];
-				long chapLenMs = chapter.LengthMs;
+            for (int i = 0; i < chapters.Count; i++)
+            {
+                var chapter = chapters[i];
+                long chapLenMs = chapter.LengthMs;
 
-				if (i == 0)
-					chapLenMs -= chapterStartMs;
+                if (i == 0)
+                    chapLenMs -= chapterStartMs;
 
-				if (config.StripAudibleBrandAudio && i == chapters.Count - 1)
-					chapLenMs -= contentLic.ContentMetadata.ChapterInfo.BrandOutroDurationMs;
+                if (config.StripAudibleBrandAudio && i == chapters.Count - 1)
+                    chapLenMs -= contentLic.ContentMetadata.ChapterInfo.BrandOutroDurationMs;
 
-				dlOptions.ChapterInfo.AddChapter(chapter.Title, TimeSpan.FromMilliseconds(chapLenMs));
-			}
+                dlOptions.ChapterInfo.AddChapter(chapter.Title, TimeSpan.FromMilliseconds(chapLenMs));
+            }
 
-			return dlOptions;
-		}
+            return dlOptions;
+        }
 
-		/*
+        /*
 
 		Flatten Audible's new hierarchical chapters, combining children into parents.
 
@@ -270,138 +270,138 @@ namespace FileLiberator
 
 		*/
 
-		public static List<AudibleApi.Common.Chapter> flattenChapters(IList<AudibleApi.Common.Chapter> chapters, string titleConcat = ": ")
-		{
-			List<AudibleApi.Common.Chapter> chaps = new();
+        public static List<AudibleApi.Common.Chapter> flattenChapters(IList<AudibleApi.Common.Chapter> chapters, string titleConcat = ": ")
+        {
+            List<AudibleApi.Common.Chapter> chaps = new();
 
-			foreach (var c in chapters)
-			{
-				if (c.Chapters is not null)
-				{
-					if (c.LengthMs < 10000)
-					{
-						c.Chapters[0].StartOffsetMs = c.StartOffsetMs;
-						c.Chapters[0].StartOffsetSec = c.StartOffsetSec;
-						c.Chapters[0].LengthMs += c.LengthMs;
-					}
-					else
-						chaps.Add(c);
+            foreach (var c in chapters)
+            {
+                if (c.Chapters is not null)
+                {
+                    if (c.LengthMs < 10000)
+                    {
+                        c.Chapters[0].StartOffsetMs = c.StartOffsetMs;
+                        c.Chapters[0].StartOffsetSec = c.StartOffsetSec;
+                        c.Chapters[0].LengthMs += c.LengthMs;
+                    }
+                    else
+                        chaps.Add(c);
 
-					var children = flattenChapters(c.Chapters);
+                    var children = flattenChapters(c.Chapters);
 
-					foreach (var child in children)
-						child.Title = $"{c.Title}{titleConcat}{child.Title}";
+                    foreach (var child in children)
+                        child.Title = $"{c.Title}{titleConcat}{child.Title}";
 
-					chaps.AddRange(children);
-					c.Chapters = null;
-				}
-				else
-					chaps.Add(c);
-			}
-			return chaps;
-		}
-
-		public static void combineCredits(IList<AudibleApi.Common.Chapter> chapters)
-		{
-			if (chapters.Count > 1 && chapters[0].Title == "Opening Credits")
-			{
-				chapters[1].StartOffsetMs = chapters[0].StartOffsetMs;
-				chapters[1].StartOffsetSec = chapters[0].StartOffsetSec;
-				chapters[1].LengthMs += chapters[0].LengthMs;
-				chapters.RemoveAt(0);
-			}
-			if (chapters.Count > 1 && chapters[^1].Title == "End Credits")
-			{
-				chapters[^2].LengthMs += chapters[^1].LengthMs;
-				chapters.Remove(chapters[^1]);
-			}
-		}		
-
-		private static void downloadValidation(LibraryBook libraryBook)
-		{
-			string errorString(string field)
-				=> $"{errorTitle()}\r\nCannot download book. {field} is not known. Try re-importing the account which owns this book.";
-
-			string errorTitle()
-			{
-				var title
-					= (libraryBook.Book.Title.Length > 53)
-					? $"{libraryBook.Book.Title.Truncate(50)}..."
-					: libraryBook.Book.Title;
-				var errorBookTitle = $"{title} [{libraryBook.Book.AudibleProductId}]";
-				return errorBookTitle;
-			};
-
-			if (string.IsNullOrWhiteSpace(libraryBook.Account))
-				throw new Exception(errorString("Account"));
-
-			if (string.IsNullOrWhiteSpace(libraryBook.Book.Locale))
-				throw new Exception(errorString("Locale"));
-		}
-
-		private void AaxcDownloader_RetrievedCoverArt(object _, byte[] e)
-		{
-			if (e is not null)
-				OnCoverImageDiscovered(e);
-			else if (Configuration.Instance.AllowLibationFixup)
-				abDownloader.SetCoverArt(OnRequestCoverArt());
-		}
-
-		/// <summary>Move new files to 'Books' directory</summary>
-		/// <returns>Return directory if audiobook file(s) were successfully created and can be located on disk. Else null.</returns>
-		private static string moveFilesToBooksDir(LibraryBook libraryBook, List<FilePathCache.CacheEntry> entries)
-		{
-			// create final directory. move each file into it
-			var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
-			Directory.CreateDirectory(destinationDir);
-
-			FilePathCache.CacheEntry getFirstAudio() => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
-
-			if (getFirstAudio() == default)
-				return null;
-
-			for (var i = 0; i < entries.Count; i++)
-			{
-				var entry = entries[i];
-
-				var realDest = FileUtility.SaferMoveToValidPath(entry.Path, Path.Combine(destinationDir, Path.GetFileName(entry.Path)), Configuration.Instance.ReplacementCharacters);
-				FilePathCache.Insert(libraryBook.Book.AudibleProductId, realDest);
-
-				// propagate corrected path. Must update cache with corrected path. Also want updated path for cue file (after this for-loop)
-				entries[i] = entry with { Path = realDest };
-			}
-
-			var cue = entries.FirstOrDefault(f => f.FileType == FileType.Cue);
-			if (cue != default)
-				Cue.UpdateFileName(cue.Path, getFirstAudio().Path);
-
-			AudibleFileStorage.Audio.Refresh();
-
-			return destinationDir;
-		}
-
-		private static void downloadCoverArt(LibraryBook libraryBook)
-		{
-			var coverPath = "[null]";
-
-			try
-			{
-				var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
-				coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(libraryBook, ".jpg");
-				coverPath = Path.Combine(destinationDir, Path.GetFileName(coverPath));
-
-				if (File.Exists(coverPath)) 
-					FileUtility.SaferDelete(coverPath);
-
-				var picBytes = PictureStorage.GetPictureSynchronously(new(libraryBook.Book.PictureLarge ?? libraryBook.Book.PictureId, PictureSize.Native));
-				if (picBytes.Length > 0)
-					File.WriteAllBytes(coverPath, picBytes);
-			}
-			catch (Exception ex)
-			{
-				//Failure to download cover art should not be considered a failure to download the book
-				Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {libraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
-			}
+                    chaps.AddRange(children);
+                    c.Chapters = null;
+                }
+                else
+                    chaps.Add(c);
+            }
+            return chaps;
         }
-	}
+
+        public static void combineCredits(IList<AudibleApi.Common.Chapter> chapters)
+        {
+            if (chapters.Count > 1 && chapters[0].Title == "Opening Credits")
+            {
+                chapters[1].StartOffsetMs = chapters[0].StartOffsetMs;
+                chapters[1].StartOffsetSec = chapters[0].StartOffsetSec;
+                chapters[1].LengthMs += chapters[0].LengthMs;
+                chapters.RemoveAt(0);
+            }
+            if (chapters.Count > 1 && chapters[^1].Title == "End Credits")
+            {
+                chapters[^2].LengthMs += chapters[^1].LengthMs;
+                chapters.Remove(chapters[^1]);
+            }
+        }
+
+        private static void downloadValidation(LibraryBook libraryBook)
+        {
+            string errorString(string field)
+                => $"{errorTitle()}\r\nCannot download book. {field} is not known. Try re-importing the account which owns this book.";
+
+            string errorTitle()
+            {
+                var title
+                    = (libraryBook.Book.Title.Length > 53)
+                    ? $"{libraryBook.Book.Title.Truncate(50)}..."
+                    : libraryBook.Book.Title;
+                var errorBookTitle = $"{title} [{libraryBook.Book.AudibleProductId}]";
+                return errorBookTitle;
+            };
+
+            if (string.IsNullOrWhiteSpace(libraryBook.Account))
+                throw new Exception(errorString("Account"));
+
+            if (string.IsNullOrWhiteSpace(libraryBook.Book.Locale))
+                throw new Exception(errorString("Locale"));
+        }
+
+        private void AaxcDownloader_RetrievedCoverArt(object _, byte[] e)
+        {
+            if (e is not null)
+                OnCoverImageDiscovered(e);
+            else if (Configuration.Instance.AllowLibationFixup)
+                abDownloader.SetCoverArt(OnRequestCoverArt());
+        }
+
+        /// <summary>Move new files to 'Books' directory</summary>
+        /// <returns>Return directory if audiobook file(s) were successfully created and can be located on disk. Else null.</returns>
+        private static string moveFilesToBooksDir(LibraryBook libraryBook, List<FilePathCache.CacheEntry> entries)
+        {
+            // create final directory. move each file into it
+            var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
+            Directory.CreateDirectory(destinationDir);
+
+            FilePathCache.CacheEntry getFirstAudio() => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
+
+            if (getFirstAudio() == default)
+                return null;
+
+            for (var i = 0; i < entries.Count; i++)
+            {
+                var entry = entries[i];
+
+                var realDest = FileUtility.SaferMoveToValidPath(entry.Path, Path.Combine(destinationDir, Path.GetFileName(entry.Path)), Configuration.Instance.ReplacementCharacters);
+                FilePathCache.Insert(libraryBook.Book.AudibleProductId, realDest);
+
+                // propagate corrected path. Must update cache with corrected path. Also want updated path for cue file (after this for-loop)
+                entries[i] = entry with { Path = realDest };
+            }
+
+            var cue = entries.FirstOrDefault(f => f.FileType == FileType.Cue);
+            if (cue != default)
+                Cue.UpdateFileName(cue.Path, getFirstAudio().Path);
+
+            AudibleFileStorage.Audio.Refresh();
+
+            return destinationDir;
+        }
+
+        private static void downloadCoverArt(LibraryBook libraryBook)
+        {
+            var coverPath = "[null]";
+
+            try
+            {
+                var destinationDir = AudibleFileStorage.Audio.GetDestinationDirectory(libraryBook);
+                coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(libraryBook, ".jpg");
+                coverPath = Path.Combine(destinationDir, Path.GetFileName(coverPath));
+
+                if (File.Exists(coverPath))
+                    FileUtility.SaferDelete(coverPath);
+
+                var picBytes = PictureStorage.GetPictureSynchronously(new(libraryBook.Book.PictureLarge ?? libraryBook.Book.PictureId, PictureSize.Native));
+                if (picBytes.Length > 0)
+                    File.WriteAllBytes(coverPath, picBytes);
+            }
+            catch (Exception ex)
+            {
+                //Failure to download cover art should not be considered a failure to download the book
+                Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {libraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
+            }
+        }
+    }
 }

Source/FileLiberator/DownloadOptions.cs

@@ -9,7 +9,6 @@ namespace FileLiberator
 {
     public class DownloadOptions : IDownloadOptions
     {
-        public LibraryBook LibraryBook { get; }
         public LibraryBookDto LibraryBookDto { get; }
         public string DownloadUrl { get; }
         public string UserAgent { get; }
@@ -35,12 +34,12 @@ namespace FileLiberator
 
         public DownloadOptions(LibraryBook libraryBook, string downloadUrl, string userAgent)
         {
-            LibraryBook = ArgumentValidator.EnsureNotNull(libraryBook, nameof(libraryBook));
+            LibraryBookDto = ArgumentValidator
+                .EnsureNotNull(libraryBook, nameof(libraryBook))
+                .ToDto();
             DownloadUrl = ArgumentValidator.EnsureNotNullOrEmpty(downloadUrl, nameof(downloadUrl));
             UserAgent = ArgumentValidator.EnsureNotNullOrEmpty(userAgent, nameof(userAgent));
 
-            LibraryBookDto = LibraryBook.ToDto();
-
             // no null/empty check for key/iv. unencrypted files do not have them
         }
     }

Source/LibationCli/Options/LiberateOptions.cs

@@ -25,9 +25,10 @@ namespace LibationCli
 			var downloadPdf = CreateProcessable<DownloadPdf>();
 
 			//Chain pdf download on DownloadDecryptBook.Completed
-			async void onDownloadDecryptBookCompleted(object sender, LibraryBook e)
+			void onDownloadDecryptBookCompleted(object sender, LibraryBook e)
 			{
-				await downloadPdf.TryProcessAsync(e);
+				// this is fast anyway. run as sync for easy exception catching
+				downloadPdf.TryProcessAsync(e).GetAwaiter().GetResult();
 			}
 
 			var downloadDecryptBook = CreateProcessable<DownloadDecryptBook>(onDownloadDecryptBookCompleted);

Source/LibationCli/Options/_ProcessableOptionsBase.cs

@@ -19,7 +19,17 @@ namespace LibationCli
 			strProc.Begin += (o, e) => Console.WriteLine($"{typeof(TProcessable).Name} Begin: {e}");
 			strProc.Completed += (o, e) => Console.WriteLine($"{typeof(TProcessable).Name} Completed: {e}");
 
-			strProc.Completed += completedAction;
+			strProc.Completed += (s, e) =>
+			{
+				try
+				{
+					completedAction?.Invoke(s, e);
+				}
+				catch (Exception ex)
+				{
+					Serilog.Log.Logger.Error(ex, "CLI error");
+				}
+			};
 
 			return strProc;
 		}

Source/LibationFileManager/InteropFactory.cs

@@ -21,7 +21,7 @@ namespace LibationFileManager
 
         private static IInteropFunctions _create(params object[] values)
             => InteropFunctionsType is null ? new NullInteropFunctions()
-//: values is null || values.Length == 0 ? Activator.CreateInstance(InteropFunctionsType) as IInteropFunctions
+            //: values is null || values.Length == 0 ? Activator.CreateInstance(InteropFunctionsType) as IInteropFunctions
             : Activator.CreateInstance(InteropFunctionsType, values) as IInteropFunctions;
 
         #region load types
@@ -32,7 +32,7 @@ namespace LibationFileManager
             : Configuration.IsMacOs ? a => Path.GetFileName(a).StartsWithInsensitive("mac") || Path.GetFileName(a).StartsWithInsensitive("osx")
             : _ => false;
 
-        private const string CONFIG_APP_ENDING = "ConfigApp.exe";
+        private const string CONFIG_APP_ENDING = "ConfigApp.dll";
         private static List<ProcessModule> ModuleList { get; } = new();
         static InteropFactory()
         {
@@ -41,16 +41,26 @@ namespace LibationFileManager
 
             // nothing to load
             if (configApp is null)
+            {
+                Serilog.Log.Logger.Error($"Unable to locate *{CONFIG_APP_ENDING}");
                 return;
+            }
 
-            // runs the exe and gets the exe's loaded modules
-            ModuleList = LoadModuleList(Path.GetFileNameWithoutExtension(configApp))
-                .OrderBy(x => x.ModuleName)
-                .ToList();
+            /*
+            * Commented code used to locate assemblies from the *ConfigApp.exe's module list.
+            * Use this method to locate dependencies when they are not in Libation's program files directory.
+#if DEBUG
+
+           // runs the exe and gets the exe's loaded modules
+           ModuleList = LoadModuleList(Path.GetFileNameWithoutExtension(configApp))
+               .OrderBy(x => x.ModuleName)
+               .ToList();
+#endif
+            */
 
             AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
 
-            var configAppAssembly = Assembly.LoadFrom(Path.ChangeExtension(configApp, "dll"));
+            var configAppAssembly = Assembly.LoadFrom(configApp);
             var type = typeof(IInteropFunctions);
             InteropFunctionsType = configAppAssembly
                 .GetTypes()
@@ -60,21 +70,19 @@ namespace LibationFileManager
         {
             var here = Path.GetDirectoryName(Environment.ProcessPath);
 
-            // find '*ConfigApp.exe' files
-            var exes =
+            // find '*ConfigApp.dll' files
+            var appName =
                 Directory.EnumerateFiles(here, $"*{CONFIG_APP_ENDING}", SearchOption.TopDirectoryOnly)
                 // sanity check. shouldn't ever be true
                 .Except(new[] { Environment.ProcessPath })
-                .Where(exe =>
-                    // has a corresponding dll
-                    File.Exists(Path.ChangeExtension(exe, "dll"))
-                    && MatchesOS(exe)
-                )
-                .ToList();
-            var exeName = exes.FirstOrDefault();
-            return exeName;
+                .FirstOrDefault(exe => MatchesOS(exe));
+
+            return appName;
         }
 
+       /*
+        * Use this method to locate dependencies when they are not in Libation's program files directory.
+        * 
         private static List<ProcessModule> LoadModuleList(string exeName)
         {
             var proc = new Process
@@ -111,16 +119,38 @@ namespace LibationFileManager
 
             return modules;
         }
+        */
 
         private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
         {
             // e.g. "System.Windows.Forms, Version=6.0.2.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
-            var asmName = args.Name.Split(',')[0];
+            var asmName = args.Name.Split(',')[0] + ".dll";
 
-            // `First` instead of `FirstOrDefault`. If it's not present we're going to fail anyway. May as well be here
-            var module = ModuleList.First(m => m.ModuleName.StartsWith(asmName));
 
-            return Assembly.LoadFrom(module.FileName);
+            /*
+             * Commented code used to locate assemblies from the *ConfigApp.exe's module list.
+             * Use this method to locate dependencies when they are not in Libation's program files directory.
+ #if DEBUG
+
+            var modulePath = ModuleList.SingleOrDefault(m => m.ModuleName.EqualsInsensitive(asmName))?.FileName;
+ #else
+            */
+            var here = Path.GetDirectoryName(Environment.ProcessPath);
+
+            // find the requested assembly in the program files directory
+            var modulePath =
+                Directory.EnumerateFiles(here, asmName, SearchOption.TopDirectoryOnly)
+                .SingleOrDefault();
+
+            //#endif
+            if (modulePath is null)
+            {
+                //Let the runtime handle any dll not found exceptions.
+                Serilog.Log.Logger.Error($"Unable to load module {args.Name}");
+                return null;
+            }
+
+            return Assembly.LoadFrom(modulePath);
         }
 
         #endregion