Port Form1 to Avalonia

Source/LibationWinForms/AvaloniaUI/Views/MainWindow/MainWindow.BackupCounts.axaml.cs

@@ -0,0 +1,121 @@
+using ApplicationServices;
+using Avalonia.Controls;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Avalonia.Threading;
+using Dinah.Core;
+
+namespace LibationWinForms.AvaloniaUI.Views
+{
+	public partial class MainWindow
+	{
+		private System.ComponentModel.BackgroundWorker updateCountsBw = new();
+		private void Configure_BackupCounts()
+		{
+			// init formattable
+			beginBookBackupsToolStripMenuItem.Format(0);
+			beginPdfBackupsToolStripMenuItem.Format(0);
+			pdfsCountsLbl.Text = "|  [Calculating backed up PDFs]";
+
+			Opened += setBackupCounts;
+			LibraryCommands.LibrarySizeChanged += setBackupCounts;
+			LibraryCommands.BookUserDefinedItemCommitted += setBackupCounts;
+
+			updateCountsBw.DoWork += UpdateCountsBw_DoWork;
+			updateCountsBw.RunWorkerCompleted += exportMenuEnable;
+			updateCountsBw.RunWorkerCompleted += updateBottomBookNumbers;
+			updateCountsBw.RunWorkerCompleted += update_BeginBookBackups_menuItem;
+			updateCountsBw.RunWorkerCompleted += updateBottomPdfNumbersAsync;
+			updateCountsBw.RunWorkerCompleted += udpate_BeginPdfOnlyBackups_menuItem;
+		}
+		private bool runBackupCountsAgain;
+		private void setBackupCounts(object _, object __)
+		{
+			runBackupCountsAgain = true;
+
+			if (!updateCountsBw.IsBusy)
+				updateCountsBw.RunWorkerAsync();
+		}
+		private void UpdateCountsBw_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
+		{
+			while (runBackupCountsAgain)
+			{
+				runBackupCountsAgain = false;
+				e.Result = LibraryCommands.GetCounts();
+			}
+		}
+
+		private void exportMenuEnable(object _, System.ComponentModel.RunWorkerCompletedEventArgs e)
+		{
+			var libraryStats = e.Result as LibraryCommands.LibraryStats;
+			Dispatcher.UIThread.Post(() => exportLibraryToolStripMenuItem.IsEnabled = libraryStats.HasBookResults);
+		}
+
+		// this cannot be cleanly be FormattableToolStripMenuItem because of the optional "Errors" text
+		private const string backupsCountsLbl_Format = "BACKUPS: No progress: {0}  In process: {1}  Fully backed up: {2}";
+
+		private void updateBottomBookNumbers(object _, System.ComponentModel.RunWorkerCompletedEventArgs e)
+		{
+			var libraryStats = e.Result as LibraryCommands.LibraryStats;
+
+			var formatString
+				= !libraryStats.HasBookResults ? "No books. Begin by importing your library"
+				: libraryStats.booksError > 0 ? backupsCountsLbl_Format + "  Errors: {3}"
+				: libraryStats.HasPendingBooks ? backupsCountsLbl_Format
+				: $"All {"book".PluralizeWithCount(libraryStats.booksFullyBackedUp)} backed up";
+			var statusStripText = string.Format(formatString,
+				libraryStats.booksNoProgress,
+				libraryStats.booksDownloadedOnly,
+				libraryStats.booksFullyBackedUp,
+				libraryStats.booksError);
+			Dispatcher.UIThread.InvokeAsync(() => backupsCountsLbl.Text = statusStripText);
+		}
+
+		// update 'begin book backups' menu item
+		private void update_BeginBookBackups_menuItem(object _, System.ComponentModel.RunWorkerCompletedEventArgs e)
+		{
+			var libraryStats = e.Result as LibraryCommands.LibraryStats;
+
+			var menuItemText
+				= libraryStats.HasPendingBooks
+				? $"{libraryStats.PendingBooks} remaining"
+				: "All books have been liberated";
+			Dispatcher.UIThread.InvokeAsync(() =>
+			{
+				beginBookBackupsToolStripMenuItem.Format(menuItemText);
+				beginBookBackupsToolStripMenuItem.IsEnabled = libraryStats.HasPendingBooks;
+			});
+		}
+
+		private async void updateBottomPdfNumbersAsync(object _, System.ComponentModel.RunWorkerCompletedEventArgs e)
+		{
+			var libraryStats = e.Result as LibraryCommands.LibraryStats;
+
+			// don't need to assign the output of Format(). It just makes this logic cleaner
+			var statusStripText
+				= !libraryStats.HasPdfResults ? ""
+				: libraryStats.pdfsNotDownloaded > 0 ? await Dispatcher.UIThread.InvokeAsync(()=> pdfsCountsLbl.Format(libraryStats.pdfsNotDownloaded, libraryStats.pdfsDownloaded))
+				: $"  |  All {libraryStats.pdfsDownloaded} PDFs downloaded";
+			await Dispatcher.UIThread.InvokeAsync(() => pdfsCountsLbl.Text = statusStripText);
+		}
+
+		// update 'begin pdf only backups' menu item
+		private void udpate_BeginPdfOnlyBackups_menuItem(object _, System.ComponentModel.RunWorkerCompletedEventArgs e)
+		{
+			var libraryStats = e.Result as LibraryCommands.LibraryStats;
+
+			var menuItemText
+				= libraryStats.pdfsNotDownloaded > 0
+				? $"{libraryStats.pdfsNotDownloaded} remaining"
+				: "All PDFs have been downloaded";
+			Dispatcher.UIThread.InvokeAsync(() =>
+			{
+				beginPdfBackupsToolStripMenuItem.Format(menuItemText);
+				beginPdfBackupsToolStripMenuItem.IsEnabled = libraryStats.pdfsNotDownloaded > 0;
+			});
+		}
+	}
+}