Libation/Source/LibationWinForms/Form1.Liberate.cs

using ApplicationServices;
using DataLayer;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LibationWinForms
{
    public partial class Form1
	{
		private void Configure_Liberate() { }

		//GetLibrary_Flat_NoTracking() may take a long time on a hugh library. so run in new thread 
		private async void beginBookBackupsToolStripMenuItem_Click(object _ = null, EventArgs __ = null)
		{
			var library = await Task.Run(() => DbContexts.GetLibrary_Flat_NoTracking());
			BackupAllBooks(library);
		}

		private void BackupAllBooks(IEnumerable<LibraryBook> books)
		{
			try
			{
				var unliberated = books.UnLiberated().ToArray();
				Invoke(() =>
				{
					if (processBookQueue1.ViewModel.QueueDownloadDecrypt(unliberated))
						SetQueueCollapseState(false);
				});
			}
			catch (Exception ex)
			{
				Serilog.Log.Logger.Error(ex, "An error occurred while backing up all library books");
			}
		}

		private async void beginPdfBackupsToolStripMenuItem_Click(object sender, EventArgs e)
		{
			if (processBookQueue1.ViewModel.QueueDownloadPdf(await Task.Run(() => ApplicationServices.DbContexts.GetLibrary_Flat_NoTracking())))
				SetQueueCollapseState(false);
		}

		private async void convertAllM4bToMp3ToolStripMenuItem_Click(object sender, EventArgs e)
		{
			var result = MessageBox.Show(
				"This converts all m4b titles in your library to mp3 files. Original files are not deleted."
				+ "\r\nFor large libraries this will take a long time and will take up more disk space."
				+ "\r\n\r\nContinue?"
				+ "\r\n\r\n(To always download titles as mp3 instead of m4b, go to Settings: Download my books as .MP3 files)",
				"Convert all M4b => Mp3?",
				MessageBoxButtons.YesNo,
				MessageBoxIcon.Warning);
			if (result == DialogResult.Yes && processBookQueue1.ViewModel.QueueConvertToMp3(await Task.Run(() => ApplicationServices.DbContexts.GetLibrary_Flat_NoTracking())))
				SetQueueCollapseState(false);
		}
	}
}