Add Locate Audiobooks function (#485)

Source/LibationAvalonia/Dialogs/LiberatedStatusBatchManualDialog.axaml

@@ -12,7 +12,7 @@
 		Icon="/Assets/libation.ico">
 
 	<Grid RowDefinitions="Auto,Auto,Auto">
-
+		
 		<TextBlock
 			Grid.Row="0"
 			Margin="10,10,10,0"

Source/LibationAvalonia/Dialogs/LocateAudiobooksDialog.axaml

@@ -0,0 +1,30 @@
+<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="600" d:DesignHeight="450"
+		Width="600" Height="450"
+		x:Class="LibationAvalonia.Dialogs.LocateAudiobooksDialog"
+        Title="Locate Audiobooks"
+		WindowStartupLocation="CenterOwner"
+		Icon="/Assets/libation.ico">
+
+	<Grid Margin="5" ColumnDefinitions="*,Auto" RowDefinitions="Auto,*">
+		<TextBlock Grid.Column="0" Text="Found Audiobooks" />
+		<StackPanel Grid.Column="1"  Orientation="Horizontal">
+
+			<TextBlock Text="IDs Found: " />
+			<TextBlock Text="{Binding FoundAsins}" />
+		</StackPanel>
+		<ListBox Margin="0,5,0,0" Grid.Row="1" Grid.ColumnSpan="2" Name="foundAudiobooksLB" Items="{Binding FoundFiles}" AutoScrollToSelectedItem="true">
+			<ListBox.ItemTemplate>
+				<DataTemplate>
+					<Grid ColumnDefinitions="Auto,*">
+						<TextBlock Grid.Column="0" Margin="0,0,10,0" Text="{Binding Item1}" />
+						<TextBlock Grid.Column="1" Text="{Binding Item2}" />
+					</Grid>
+				</DataTemplate>
+			</ListBox.ItemTemplate>
+		</ListBox>
+	</Grid>
+</Window>

Source/LibationAvalonia/Dialogs/LocateAudiobooksDialog.axaml.cs

@@ -0,0 +1,115 @@
+using ApplicationServices;
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Platform.Storage;
+using Avalonia.Platform.Storage.FileIO;
+using DataLayer;
+using LibationAvalonia.ViewModels;
+using LibationFileManager;
+using ReactiveUI;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace LibationAvalonia.Dialogs
+{
+	public partial class LocateAudiobooksDialog : DialogWindow
+	{
+		private event EventHandler<FilePathCache.CacheEntry> FileFound;
+		private readonly CancellationTokenSource tokenSource = new();
+		private readonly List<string> foundAsins = new();
+		private readonly LocatedAudiobooksViewModel _viewModel;
+		public LocateAudiobooksDialog()
+		{
+			InitializeComponent();
+
+			DataContext = _viewModel = new();
+			this.RestoreSizeAndLocation(Configuration.Instance);
+
+			if (Design.IsDesignMode)
+			{
+				_viewModel.FoundFiles.Add(new("[0000001]", "Filename 1.m4b"));
+				_viewModel.FoundFiles.Add(new("[0000002]", "Filename 2.m4b"));
+			}
+			else
+			{
+				Opened += LocateAudiobooksDialog_Opened;
+				FileFound += LocateAudiobooks_FileFound;
+				Closing += LocateAudiobooksDialog_Closing;
+			}
+		}
+
+		private void LocateAudiobooksDialog_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+		{
+			tokenSource.Cancel();
+			//If this dialog is closed before it's completed, Closing is fired
+			//once for the form clising and again for the MessageBox closing.
+			Closing -= LocateAudiobooksDialog_Closing;
+			this.SaveSizeAndLocation(Configuration.Instance);
+		}
+
+		private void LocateAudiobooks_FileFound(object sender, FilePathCache.CacheEntry e)
+		{
+			var newItem = new Tuple<string,string>($"[{e.Id}]", Path.GetFileName(e.Path));
+			_viewModel.FoundFiles.Add(newItem);
+			foundAudiobooksLB.SelectedItem = newItem;
+
+			if (!foundAsins.Any(asin => asin == e.Id))
+			{
+				foundAsins.Add(e.Id);
+				_viewModel.FoundAsins = foundAsins.Count;
+			}
+		}
+
+		private async void LocateAudiobooksDialog_Opened(object sender, EventArgs e)
+		{
+			var folderPicker = new FolderPickerOpenOptions
+			{
+				Title = "Select the folder to search for audiobooks",
+				AllowMultiple = false,
+				SuggestedStartLocation = new BclStorageFolder(Configuration.Instance.Books.PathWithoutPrefix) 
+			};
+
+			var selectedFolder = await StorageProvider.OpenFolderPickerAsync(folderPicker);
+
+			if (selectedFolder.FirstOrDefault().TryGetUri(out var uri) is not true || !Directory.Exists(uri.LocalPath))
+			{
+				await CancelAndCloseAsync();
+				return;
+			}
+
+			using var context = DbContexts.GetContext();
+
+			await foreach (var book in AudioFileLocator.FindAudiobooks(uri.LocalPath, tokenSource.Token))
+			{
+				try
+				{
+					FilePathCache.Insert(book);
+
+					var lb = context.GetLibraryBook_Flat_NoTracking(book.Id);
+					if (lb.Book.UserDefinedItem.BookStatus is not LiberatedStatus.Liberated)
+						await Task.Run(() => lb.UpdateBookStatus(LiberatedStatus.Liberated));
+
+					FileFound?.Invoke(this, book);
+				}
+				catch (Exception ex)
+				{
+					Serilog.Log.Error(ex, "Error adding found audiobook file to Libation. {@audioFile}", book);
+				}
+			}
+
+			await MessageBox.Show(this, $"Libation has found {foundAsins.Count} unique audiobooks and added them to its database. ", $"Found {foundAsins.Count} Audiobooks");
+			await SaveAndCloseAsync();
+		}
+	}
+
+	public class LocatedAudiobooksViewModel : ViewModelBase
+	{
+		private int _foundAsins = 0;
+		public AvaloniaList<Tuple<string, string>> FoundFiles { get; } = new();
+		public int FoundAsins { get => _foundAsins; set => this.RaiseAndSetIfChanged(ref _foundAsins, value); }
+	}
+}

Source/LibationAvalonia/Dialogs/MessageBoxWindow.axaml

@@ -35,13 +35,13 @@
 			</DockPanel.Styles>
 			<StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Margin="5" DockPanel.Dock="Bottom">
 				<Button Grid.Column="0" MinWidth="75" MinHeight="28" Name="Button1" Click="Button1_Click" Margin="5">
-					<TextBlock VerticalAlignment="Center" Text="{Binding Button1Text}"/>
+					<TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding Button1Text}"/>
 				</Button>
 				<Button Grid.Column="1" IsVisible="{Binding HasButton2}" MinWidth="75" MinHeight="28" Name="Button2" Click="Button2_Click" Margin="5">
-					<TextBlock VerticalAlignment="Center" Text="{Binding Button2Text}"/>
+					<TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding Button2Text}"/>
 				</Button>
 				<Button Grid.Column="2" IsVisible="{Binding HasButton3}" MinWidth="75" MinHeight="28" Name="Button3" Click="Button3_Click" Content="Cancel" Margin="5">
-					<TextBlock VerticalAlignment="Center" Text="{Binding Button3Text}"/>
+					<TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding Button3Text}"/>
 				</Button>
 			</StackPanel>
 		</DockPanel>