386 lines
12 KiB
C#
386 lines
12 KiB
C#
using DataLayer;
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using Dinah.Core;
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using FileLiberator;
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using LibationFileManager;
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using LibationWinForms.BookLiberation;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace LibationWinForms.ProcessQueue
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{
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public enum ProcessBookResult
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{
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None,
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Success,
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Cancelled,
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ValidationFail,
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FailedRetry,
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FailedSkip,
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FailedAbort
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}
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public enum ProcessBookStatus
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{
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Queued,
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Cancelled,
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Working,
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Completed,
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Failed
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}
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/// <summary>
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/// This is the viewmodel for queued processables
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/// </summary>
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public class ProcessBook : INotifyPropertyChanged
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{
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public event EventHandler Completed;
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public event PropertyChangedEventHandler PropertyChanged;
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private ProcessBookResult _result = ProcessBookResult.None;
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private ProcessBookStatus _status = ProcessBookStatus.Queued;
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private string _bookText;
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private int _progress;
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private TimeSpan _timeRemaining;
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private Image _cover;
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public ProcessBookResult Result { get => _result; private set { _result = value; NotifyPropertyChanged(); } }
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public ProcessBookStatus Status { get => _status; private set { _status = value; NotifyPropertyChanged(); } }
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public string BookText { get => _bookText; private set { _bookText = value; NotifyPropertyChanged(); } }
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public int Progress { get => _progress; private set { _progress = value; NotifyPropertyChanged(); } }
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public TimeSpan TimeRemaining { get => _timeRemaining; private set { _timeRemaining = value; NotifyPropertyChanged(); } }
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public Image Cover { get => _cover; private set { _cover = value; NotifyPropertyChanged(); } }
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public LibraryBook LibraryBook { get; private set; }
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private Processable CurrentProcessable => _currentProcessable ??= Processes.Dequeue().Invoke();
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private Processable NextProcessable() => _currentProcessable = null;
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private Processable _currentProcessable;
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private Func<byte[]> GetCoverArtDelegate;
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private readonly Queue<Func<Processable>> Processes = new();
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private readonly LogMe Logger;
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public void NotifyPropertyChanged([CallerMemberName] string propertyName = "")
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=> PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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public ProcessBook(LibraryBook libraryBook, LogMe logme)
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{
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LibraryBook = libraryBook;
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Logger = logme;
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title = LibraryBook.Book.Title;
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authorNames = LibraryBook.Book.AuthorNames();
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narratorNames = LibraryBook.Book.NarratorNames();
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_bookText = $"{title}\r\nBy {authorNames}\r\nNarrated by {narratorNames}";
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(bool isDefault, byte[] picture) = PictureStorage.GetPicture(new PictureDefinition(LibraryBook.Book.PictureId, PictureSize._80x80));
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if (isDefault)
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PictureStorage.PictureCached += PictureStorage_PictureCached;
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_cover = Dinah.Core.Drawing.ImageReader.ToImage(picture);
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}
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private void PictureStorage_PictureCached(object sender, PictureCachedEventArgs e)
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{
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if (e.Definition.PictureId == LibraryBook.Book.PictureId)
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{
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Cover = Dinah.Core.Drawing.ImageReader.ToImage(e.Picture);
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PictureStorage.PictureCached -= PictureStorage_PictureCached;
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}
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}
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public async Task<ProcessBookResult> ProcessOneAsync()
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{
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try
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{
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LinkProcessable(CurrentProcessable);
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var statusHandler = await CurrentProcessable.ProcessSingleAsync(LibraryBook, validate: true);
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if (statusHandler.IsSuccess)
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return Result = ProcessBookResult.Success;
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else if (statusHandler.Errors.Contains("Cancelled"))
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{
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Logger.Info($"Process was cancelled {LibraryBook.Book}");
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return Result = ProcessBookResult.Cancelled;
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}
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else if (statusHandler.Errors.Contains("Validation failed"))
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{
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Logger.Info($"Validation failed {LibraryBook.Book}");
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return Result = ProcessBookResult.ValidationFail;
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}
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foreach (var errorMessage in statusHandler.Errors)
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Logger.Error(errorMessage);
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}
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catch (Exception ex)
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{
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Logger.Error(ex);
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}
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finally
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{
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if (Result == ProcessBookResult.None)
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Result = showRetry(LibraryBook);
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Status = Result switch
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{
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ProcessBookResult.Success => ProcessBookStatus.Completed,
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ProcessBookResult.Cancelled => ProcessBookStatus.Cancelled,
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ProcessBookResult.FailedRetry => ProcessBookStatus.Queued,
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_ => ProcessBookStatus.Failed,
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};
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}
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return Result;
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}
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public async Task Cancel()
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{
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try
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{
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if (CurrentProcessable is AudioDecodable audioDecodable)
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{
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//There's some threadding bug that causes this to hang if executed synchronously.
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await Task.Run(audioDecodable.Cancel);
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}
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}
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catch (Exception ex)
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{
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Logger.Error(ex, "Error while cancelling");
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}
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}
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public void AddDownloadPdf() => AddProcessable<DownloadPdf>();
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public void AddDownloadDecryptBook() => AddProcessable<DownloadDecryptBook>();
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public void AddConvertToMp3() => AddProcessable<ConvertToMp3>();
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private void AddProcessable<T>() where T : Processable, new()
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{
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Processes.Enqueue(() => new T());
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}
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public override string ToString() => LibraryBook.ToString();
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#region Subscribers and Unsubscribers
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private void LinkProcessable(Processable processable)
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{
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processable.Begin += Processable_Begin;
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processable.Completed += Processable_Completed;
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processable.StreamingProgressChanged += Streamable_StreamingProgressChanged;
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processable.StreamingTimeRemaining += Streamable_StreamingTimeRemaining;
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if (processable is AudioDecodable audioDecodable)
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{
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audioDecodable.RequestCoverArt += AudioDecodable_RequestCoverArt;
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audioDecodable.TitleDiscovered += AudioDecodable_TitleDiscovered;
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audioDecodable.AuthorsDiscovered += AudioDecodable_AuthorsDiscovered;
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audioDecodable.NarratorsDiscovered += AudioDecodable_NarratorsDiscovered;
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audioDecodable.CoverImageDiscovered += AudioDecodable_CoverImageDiscovered;
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}
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}
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private void UnlinkProcessable(Processable processable)
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{
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processable.Begin -= Processable_Begin;
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processable.Completed -= Processable_Completed;
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processable.StreamingProgressChanged -= Streamable_StreamingProgressChanged;
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processable.StreamingTimeRemaining -= Streamable_StreamingTimeRemaining;
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if (processable is AudioDecodable audioDecodable)
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{
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audioDecodable.RequestCoverArt -= AudioDecodable_RequestCoverArt;
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audioDecodable.TitleDiscovered -= AudioDecodable_TitleDiscovered;
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audioDecodable.AuthorsDiscovered -= AudioDecodable_AuthorsDiscovered;
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audioDecodable.NarratorsDiscovered -= AudioDecodable_NarratorsDiscovered;
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audioDecodable.CoverImageDiscovered -= AudioDecodable_CoverImageDiscovered;
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}
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}
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#endregion
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#region AudioDecodable event handlers
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private string title;
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private string authorNames;
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private string narratorNames;
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private void AudioDecodable_TitleDiscovered(object sender, string title)
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{
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this.title = title;
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updateBookInfo();
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}
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private void AudioDecodable_AuthorsDiscovered(object sender, string authors)
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{
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authorNames = authors;
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updateBookInfo();
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}
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private void AudioDecodable_NarratorsDiscovered(object sender, string narrators)
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{
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narratorNames = narrators;
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updateBookInfo();
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}
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private void updateBookInfo()
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{
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BookText = $"{title}\r\nBy {authorNames}\r\nNarrated by {narratorNames}";
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}
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public void AudioDecodable_RequestCoverArt(object sender, Action<byte[]> setCoverArtDelegate)
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{
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byte[] coverData = GetCoverArtDelegate();
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setCoverArtDelegate(coverData);
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AudioDecodable_CoverImageDiscovered(this, coverData);
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}
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private void AudioDecodable_CoverImageDiscovered(object sender, byte[] coverArt)
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{
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Cover = Dinah.Core.Drawing.ImageReader.ToImage(coverArt);
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}
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#endregion
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#region Streamable event handlers
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private void Streamable_StreamingTimeRemaining(object sender, TimeSpan timeRemaining)
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{
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TimeRemaining = timeRemaining;
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}
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private void Streamable_StreamingProgressChanged(object sender, Dinah.Core.Net.Http.DownloadProgress downloadProgress)
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{
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if (!downloadProgress.ProgressPercentage.HasValue)
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return;
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if (downloadProgress.ProgressPercentage == 0)
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TimeRemaining = TimeSpan.Zero;
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else
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Progress = (int)downloadProgress.ProgressPercentage;
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}
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#endregion
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#region Processable event handlers
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private void Processable_Begin(object sender, LibraryBook libraryBook)
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{
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Status = ProcessBookStatus.Working;
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Logger.Info($"{Environment.NewLine}{((Processable)sender).Name} Step, Begin: {libraryBook.Book}");
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GetCoverArtDelegate = () => PictureStorage.GetPictureSynchronously(
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new PictureDefinition(
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libraryBook.Book.PictureId,
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PictureSize._500x500));
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title = libraryBook.Book.Title;
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authorNames = libraryBook.Book.AuthorNames();
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narratorNames = libraryBook.Book.NarratorNames();
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updateBookInfo();
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}
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private async void Processable_Completed(object sender, LibraryBook libraryBook)
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{
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Logger.Info($"{((Processable)sender).Name} Step, Completed: {libraryBook.Book}");
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UnlinkProcessable((Processable)sender);
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if (Processes.Count > 0)
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{
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NextProcessable();
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LinkProcessable(CurrentProcessable);
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var result = await CurrentProcessable.ProcessSingleAsync(libraryBook, validate: true);
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if (result.HasErrors)
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{
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foreach (var errorMessage in result.Errors.Where(e => e != "Validation failed"))
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Logger.Error(errorMessage);
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Completed?.Invoke(this, EventArgs.Empty);
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}
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}
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else
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{
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Completed?.Invoke(this, EventArgs.Empty);
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}
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}
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#endregion
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#region Failure Handler
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private ProcessBookResult showRetry(LibraryBook libraryBook)
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{
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Logger.Error("ERROR. All books have not been processed. Most recent book: processing failed");
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DialogResult? dialogResult = Configuration.Instance.BadBook switch
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{
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Configuration.BadBookAction.Abort => DialogResult.Abort,
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Configuration.BadBookAction.Retry => DialogResult.Retry,
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Configuration.BadBookAction.Ignore => DialogResult.Ignore,
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Configuration.BadBookAction.Ask => null,
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_ => null
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};
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string details;
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try
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{
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static string trunc(string str)
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=> string.IsNullOrWhiteSpace(str) ? "[empty]"
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: (str.Length > 50) ? $"{str.Truncate(47)}..."
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: str;
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details =
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$@" Title: {libraryBook.Book.Title}
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ID: {libraryBook.Book.AudibleProductId}
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Author: {trunc(libraryBook.Book.AuthorNames())}
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Narr: {trunc(libraryBook.Book.NarratorNames())}";
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}
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catch
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{
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details = "[Error retrieving details]";
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}
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// if null then ask user
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dialogResult ??= MessageBox.Show(string.Format(SkipDialogText + "\r\n\r\nSee Settings to avoid this box in the future.", details), "Skip importing this book?", SkipDialogButtons, MessageBoxIcon.Question, SkipDialogDefaultButton);
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if (dialogResult == DialogResult.Abort)
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return ProcessBookResult.FailedAbort;
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if (dialogResult == SkipResult)
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{
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libraryBook.Book.UserDefinedItem.BookStatus = LiberatedStatus.Error;
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ApplicationServices.LibraryCommands.UpdateUserDefinedItem(libraryBook.Book);
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Logger.Info($"Error. Skip: [{libraryBook.Book.AudibleProductId}] {libraryBook.Book.Title}");
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return ProcessBookResult.FailedSkip;
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}
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return ProcessBookResult.FailedRetry;
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}
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private string SkipDialogText => @"
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An error occurred while trying to process this book.
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{0}
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- ABORT: Stop processing books.
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- RETRY: retry this book later. Just skip it for now. Continue processing books. (Will try this book again later.)
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- IGNORE: Permanently ignore this book. Continue processing books. (Will not try this book again later.)
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".Trim();
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private MessageBoxButtons SkipDialogButtons => MessageBoxButtons.AbortRetryIgnore;
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private MessageBoxDefaultButton SkipDialogDefaultButton => MessageBoxDefaultButton.Button1;
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private DialogResult SkipResult => DialogResult.Ignore;
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}
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#endregion
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}
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