Remain classes and fix adding row to EditTagsDialog

Source/LibationWinForms/AvaloniaUI/ViewModels/LiberateButtonStatus.cs

@@ -0,0 +1,123 @@
+using Avalonia.Media.Imaging;
+using DataLayer;
+using ReactiveUI;
+using System;
+using System.Collections.Generic;
+
+namespace LibationWinForms.AvaloniaUI.ViewModels
+{
+	public class LiberateButtonStatus : ViewModelBase, IComparable
+	{
+		public LiberateButtonStatus(bool isSeries)
+		{
+			IsSeries = isSeries;
+		}
+		public LiberatedStatus BookStatus { get; set; }
+		public LiberatedStatus? PdfStatus { get; set; }
+
+		private bool _expanded;
+		public bool Expanded
+		{
+			get => _expanded;
+			set
+			{
+				this.RaiseAndSetIfChanged(ref _expanded, value);
+				this.RaisePropertyChanged(nameof(Image));
+				this.RaisePropertyChanged(nameof(ToolTip));
+			}
+		}
+		private bool IsSeries { get; }
+		public Bitmap Image => GetLiberateIcon();
+		public string ToolTip => GetTooltip();
+
+		static Dictionary<string, Bitmap> iconCache = new();
+
+		/// <summary> Defines the Liberate column's sorting behavior </summary>
+		public int CompareTo(object obj)
+		{
+			if (obj is not LiberateButtonStatus second) return -1;
+
+			if (IsSeries && !second.IsSeries) return -1;
+			else if (!IsSeries && second.IsSeries) return 1;
+			else if (IsSeries && second.IsSeries) return 0;
+			else if (BookStatus == LiberatedStatus.Liberated && second.BookStatus != LiberatedStatus.Liberated) return -1;
+			else if (BookStatus != LiberatedStatus.Liberated && second.BookStatus == LiberatedStatus.Liberated) return 1;
+			else return BookStatus.CompareTo(second.BookStatus);
+		}
+
+		private Bitmap GetLiberateIcon()
+		{
+			if (IsSeries)
+				return Expanded ? GetFromResources("minus") : GetFromResources("plus");
+
+			if (BookStatus == LiberatedStatus.Error)
+				return GetFromResources("error");
+
+			string image_lib = BookStatus switch
+			{
+				LiberatedStatus.Liberated => "green",
+				LiberatedStatus.PartialDownload => "yellow",
+				LiberatedStatus.NotLiberated => "red",
+				_ => throw new Exception("Unexpected liberation state")
+			};
+
+			string image_pdf = PdfStatus switch
+			{
+				LiberatedStatus.Liberated => "_pdf_yes",
+				LiberatedStatus.NotLiberated => "_pdf_no",
+				LiberatedStatus.Error => "_pdf_no",
+				null => "",
+				_ => throw new Exception("Unexpected PDF state")
+			};
+
+			return GetFromResources($"liberate_{image_lib}{image_pdf}");
+		}
+		private string GetTooltip()
+		{
+			if (IsSeries)
+				return Expanded ? "Click to Collpase" : "Click to Expand";
+
+			if (BookStatus == LiberatedStatus.Error)
+				return "Book downloaded ERROR";
+
+			string libState = BookStatus switch
+			{
+				LiberatedStatus.Liberated => "Liberated",
+				LiberatedStatus.PartialDownload => "File has been at least\r\npartially downloaded",
+				LiberatedStatus.NotLiberated => "Book NOT downloaded",
+				_ => throw new Exception("Unexpected liberation state")
+			};
+
+			string pdfState = PdfStatus switch
+			{
+				LiberatedStatus.Liberated => "\r\nPDF downloaded",
+				LiberatedStatus.NotLiberated => "\r\nPDF NOT downloaded",
+				LiberatedStatus.Error => "\r\nPDF downloaded ERROR",
+				null => "",
+				_ => throw new Exception("Unexpected PDF state")
+			};
+
+
+			var mouseoverText = libState + pdfState;
+
+			if (BookStatus == LiberatedStatus.NotLiberated ||
+				BookStatus == LiberatedStatus.PartialDownload ||
+				PdfStatus == LiberatedStatus.NotLiberated)
+				mouseoverText += "\r\nClick to complete";
+
+			return mouseoverText;
+		}
+
+		private static Bitmap GetFromResources(string rescName)
+		{
+			if (iconCache.ContainsKey(rescName)) return iconCache[rescName];
+
+			var memoryStream = new System.IO.MemoryStream();
+
+			((System.Drawing.Bitmap)Properties.Resources.ResourceManager.GetObject(rescName)).Save(memoryStream, System.Drawing.Imaging.ImageFormat.Png);
+			memoryStream.Position = 0;
+			iconCache[rescName] = new Bitmap(memoryStream);
+			return iconCache[rescName];
+		}
+	}
+}