feature: add Copy Report button to GUI protect tab (#65)

The protect tab now wraps the logger and progress reporter with a
DiagnosticCollector during each run. A 'Copy Report' button (enabled once a run
completes, success or failure) copies the markdown diagnostic report to the
clipboard for pasting into a bug report. Clipboard failures are swallowed so a
transient lock cannot crash the app.

Author: RandomCrocodile

ConfuserEx/ViewModel/UI/ProtectTabVM.cs

@@ -7,6 +7,7 @@
 using System.Windows.Media;
 using CommunityToolkit.Mvvm.Input;
 using Confuser.Core;
+using Confuser.Core.Diagnostics;
 using Confuser.Core.Project;
 using Microsoft.Extensions.Logging;
 using Serilog;
@@ -15,6 +16,7 @@ namespace ConfuserEx.ViewModel {
 	internal class ProtectTabVM : TabViewModel, IProgressReporter {
 		readonly Paragraph documentContent;
 		CancellationTokenSource cancelSrc;
+		DiagnosticCollector collector;
 		double? progress = 0;
 		bool? result;
 
@@ -33,6 +35,10 @@ public ICommand CancelCmd {
 			get { return new RelayCommand(DoCancel, () => App.NavigationDisabled); }
 		}
 
+		public ICommand CopyReportCmd {
+			get { return new RelayCommand(DoCopyReport, () => Result != null && collector != null); }
+		}
+
 		public double? Progress {
 			get { return progress; }
 			set { SetProperty(ref progress, value, "Progress"); }
@@ -65,8 +71,12 @@ void DoProtect() {
 				builder.AddSerilog(serilogLogger, dispose: true));
 			var melLogger = loggerFactory.CreateLogger("ConfuserEx");
 
-			parameters.Logger = melLogger;
-			parameters.ProgressReporter = this;
+			// The collector wraps the logger and this progress reporter so a diagnostic report —
+			// covering both successful and failed runs — can be copied afterwards. It captures the
+			// full transcript regardless of the display level and forwards everything through.
+			collector = new DiagnosticCollector(melLogger, this) { Project = parameters.Project };
+			parameters.Logger = collector;
+			parameters.ProgressReporter = collector;
 
 			cancelSrc = new CancellationTokenSource();
 			Result = null;
@@ -89,6 +99,19 @@ void DoCancel() {
 			cancelSrc.Cancel();
 		}
 
+		void DoCopyReport() {
+			if (collector == null)
+				return;
+
+			try {
+				Clipboard.SetText(collector.GenerateReport());
+			}
+			catch {
+				// The clipboard can be transiently locked by another process; a failed copy
+				// should never crash the app. The user can simply retry.
+			}
+		}
+
 		#region IProgressReporter
 
 		DateTime begin;

ConfuserEx/Views/ProtectTabView.xaml

@@ -10,15 +10,19 @@
             </Grid.RowDefinitions>
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="110px" />
                 <ColumnDefinition Width="100px" />
                 <ColumnDefinition Width="100px" />
             </Grid.ColumnDefinitions>
 
             <ProgressBar x:Name="progress" Grid.Row="0" Grid.Column="0" Margin="5"
                          Value="{Binding Progress}" Minimum="0" Maximum="1" />
-            <Button Grid.Row="0" Grid.Column="1" Margin="5" Content="Protect!" Command="{Binding ProtectCmd}" />
-            <Button Grid.Row="0" Grid.Column="2" Margin="5" Content="Cancel" Command="{Binding CancelCmd}" />
-            <RichTextBox x:Name="log" Grid.Row="1" Grid.ColumnSpan="3" Margin="5" FontFamily="Consolas"
+            <Button Grid.Row="0" Grid.Column="1" Margin="5" Content="Copy Report"
+                    ToolTip="Copy a diagnostic report (system, configuration and log) to the clipboard for bug reports."
+                    Command="{Binding CopyReportCmd}" />
+            <Button Grid.Row="0" Grid.Column="2" Margin="5" Content="Protect!" Command="{Binding ProtectCmd}" />
+            <Button Grid.Row="0" Grid.Column="3" Margin="5" Content="Cancel" Command="{Binding CancelCmd}" />
+            <RichTextBox x:Name="log" Grid.Row="1" Grid.ColumnSpan="4" Margin="5" FontFamily="Consolas"
                          IsReadOnly="True" IsReadOnlyCaretVisible="True" local:Skin.RTBDocument="{Binding LogDocument}"
                          VerticalScrollBarVisibility="Visible" />
         </Grid>