feat(debug): add shared test-logging library, auto-start option, and …

NLogViewer.sln

@@ -1,4 +1,4 @@
-
+
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 18
 VisualStudioVersion = 18.0.11222.15
@@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sentinel.NLogViewer.Wpf.Mat
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sentinel.NLogViewer.App", "app\Sentinel.NLogViewer.App\Sentinel.NLogViewer.App.csproj", "{B2C3D4E5-F6A7-8901-BCDE-F123456789AB}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sentinel.NLogViewer.TestLogging", "app\Sentinel.NLogViewer.TestLogging\Sentinel.NLogViewer.TestLogging.csproj", "{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123}"
+EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sentinel.NLogViewer.App.TestApp", "testapp\Sentinel.NLogViewer.App.TestApp\Sentinel.NLogViewer.App.TestApp.csproj", "{C3D4E5F6-A7B8-9012-CDEF-123456789ABC}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sentinel.NLogViewer.App.Tests", "tests\Sentinel.NLogViewer.App.Tests\Sentinel.NLogViewer.App.Tests.csproj", "{D4E5F6A7-B8C9-0123-DEF1-23456789ABCD}"
@@ -58,6 +60,10 @@ Global
 		{B2C3D4E5-F6A7-8901-BCDE-F123456789AB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B2C3D4E5-F6A7-8901-BCDE-F123456789AB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B2C3D4E5-F6A7-8901-BCDE-F123456789AB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123}.Release|Any CPU.Build.0 = Release|Any CPU
 		{C3D4E5F6-A7B8-9012-CDEF-123456789ABC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{C3D4E5F6-A7B8-9012-CDEF-123456789ABC}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C3D4E5F6-A7B8-9012-CDEF-123456789ABC}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -76,6 +82,7 @@ Global
 		{A1B2C3D4-E5F6-7890-ABCD-EF1234567890} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
 		{D1CF3283-A165-477B-A08A-BEBFCD7A7712} = {9F4FA7B3-9ADD-4601-8EC7-8C9A7BD691C7}
 		{B2C3D4E5-F6A7-8901-BCDE-F123456789AB} = {A1B2C3D4-E5F6-7890-ABCD-EF1234567891}
+		{E5F6A7B8-C9D0-1234-EF56-789ABCDE0123} = {A1B2C3D4-E5F6-7890-ABCD-EF1234567891}
 		{C3D4E5F6-A7B8-9012-CDEF-123456789ABC} = {9F4FA7B3-9ADD-4601-8EC7-8C9A7BD691C7}
 		{D4E5F6A7-B8C9-0123-DEF1-23456789ABCD} = {1EBF655C-A427-41E1-8BFC-6A2429B7EF6E}
 	EndGlobalSection

app/Sentinel.NLogViewer.App/App.xaml.cs

@@ -16,16 +16,20 @@ public partial class App : Application
     {
         private IHost? _host;
 
+#if DEBUG
+        private TestLoggingService? _testLoggingService;
+#endif
+
         public App()
         {
             // Build the host with dependency injection
             var hostBuilder = Host.CreateApplicationBuilder();
-            
+
             // Register services
             ConfigureServices(hostBuilder.Services);
-            
+
             _host = hostBuilder.Build();
-            
+
             // Initialize localization service BEFORE XAML is loaded
             // This ensures the correct culture is set for resource loading
             var localizationService = _host.Services.GetRequiredService<LocalizationService>();
@@ -42,48 +46,88 @@ private void ConfigureServices(IServiceCollection services)
             services.AddSingleton<LocalizationService>();
             services.AddSingleton<TextFileFormatDetector>();
             services.AddSingleton<TextFileFormatConfigService>();
-            
+
             // Register services as scoped (one per window/view)
             services.AddScoped<UdpLogReceiverService>();
             services.AddScoped<LogFileParserService>();
-            
+
             // Register parsers as transient (new instance each time)
             services.AddTransient<Parsers.Log4JEventParser>();
             services.AddTransient<Parsers.PlainTextParser>();
             services.AddTransient<Parsers.JsonLogParser>();
-            
+
             // Register ViewModels as scoped
             services.AddScoped<MainViewModel>();
             services.AddScoped<SettingsViewModel>();
             services.AddScoped<LanguageSelectionViewModel>();
-            
+
             // Register Windows as transient (new window each time)
             services.AddTransient<MainWindow>();
             services.AddTransient<SettingsWindow>();
             services.AddTransient<LanguageSelectionWindow>();
+
+#if DEBUG
+            services.AddSingleton<TestLoggingService>();
+            services.AddTransient<TestLoggingViewModel>();
+            services.AddTransient<TestLoggingWindow>();
+#endif
         }
 
         protected override void OnStartup(StartupEventArgs e)
         {
             base.OnStartup(e);
-            
+
             // Create and show the main window using DI
             // Create a scope for the main window and its dependencies
             if (_host != null)
             {
                 var scope = _host.Services.CreateScope();
                 var mainWindow = scope.ServiceProvider.GetRequiredService<MainWindow>();
                 MainWindow = mainWindow;
-                
+
                 // Store the scope so it's disposed when the window closes
                 mainWindow.Closed += (s, args) => scope.Dispose();
-                
+
                 mainWindow.Show();
+
+#if DEBUG
+                _testLoggingService = _host.Services.GetRequiredService<TestLoggingService>();
+                if (ShouldAutoStartTestLogging())
+                {
+                    _testLoggingService.Start(new Sentinel.NLogViewer.TestLogging.TestLoggingOptions
+                    {
+                        TargetName = "chainsaw",
+                        UdpHost = "127.0.0.1",
+                        UdpPort = 4000,
+                        MessageIntervalMs = 1000,
+                        ExceptionProbability = 0.2
+                    });
+                }
+#endif
+            }
+        }
+
+#if DEBUG
+        private bool ShouldAutoStartTestLogging()
+        {
+            if (_host == null) return false;
+            try
+            {
+                var configService = _host.Services.GetRequiredService<ConfigurationService>();
+                return configService.LoadConfiguration().AutoStartTestLogging;
+            }
+            catch
+            {
+                return false;
             }
         }
+#endif
 
         protected override void OnExit(ExitEventArgs e)
         {
+#if DEBUG
+            _testLoggingService?.Stop();
+#endif
             // Dispose the host and all registered services
             _host?.Dispose();
             base.OnExit(e);

app/Sentinel.NLogViewer.App/MainWindow.xaml

@@ -32,7 +32,7 @@
         </Grid.RowDefinitions>
 
         <!-- Menu Bar -->
-        <Menu Grid.Row="0">
+        <Menu x:Name="MainMenu" Grid.Row="0">
             <MenuItem Header="{helpers:Resource Key=Menu_File, DefaultValue=_File}">
                 <MenuItem Header="{helpers:Resource Key=Menu_OpenFile, DefaultValue=_Open File...}" 
                           Command="{Binding OpenFileCommand}" 

app/Sentinel.NLogViewer.App/MainWindow.xaml.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Reflection;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Input;
 using Microsoft.Extensions.DependencyInjection;
 using Sentinel.NLogViewer.App.ViewModels;
@@ -19,16 +20,37 @@ public MainWindow(MainViewModel viewModel)
             _viewModel = viewModel ?? throw new ArgumentNullException(nameof(viewModel));
             InitializeComponent();
             DataContext = _viewModel;
-            
+
             // Set window title with version
             SetWindowTitleWithVersion();
-            
+
             // Setup keyboard shortcuts
-            this.InputBindings.Add(new KeyBinding(_viewModel.OpenFileCommand, 
+            this.InputBindings.Add(new KeyBinding(_viewModel.OpenFileCommand,
                 new KeyGesture(Key.O, ModifierKeys.Control)));
-            this.InputBindings.Add(new KeyBinding(_viewModel.OpenSettingsCommand, 
+            this.InputBindings.Add(new KeyBinding(_viewModel.OpenSettingsCommand,
                 new KeyGesture(Key.OemComma, ModifierKeys.Control)));
+
+#if DEBUG
+            AddDebugMenu();
+#endif
+        }
+
+#if DEBUG
+        private void AddDebugMenu()
+        {
+            var testLoggingItem = new MenuItem { Header = "_Test logging" };
+            testLoggingItem.Click += (s, _) =>
+            {
+                using var scope = App.ServiceProvider!.CreateScope();
+                var window = scope.ServiceProvider.GetRequiredService<TestLoggingWindow>();
+                window.Owner = this;
+                window.Show();
+            };
+            var debugMenu = new MenuItem { Header = "_Debug" };
+            debugMenu.Items.Add(testLoggingItem);
+            MainMenu.Items.Insert(MainMenu.Items.Count - 1, debugMenu);
         }
+#endif
 
         /// <summary>
         /// Sets the window title with the application version

app/Sentinel.NLogViewer.App/Sentinel.NLogViewer.App.csproj

@@ -34,14 +34,15 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
-    <PackageReference Include="NLog" Version="5.2.4" />
+    <PackageReference Include="NLog" Version="6.0.0" />
     <PackageReference Include="System.Reactive" Version="6.0.0" />
     <PackageReference Include="SharpVectors" Version="1.8.5" />
     <PackageReference Include="System.Text.Json" Version="9.0.0" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\..\ui\Sentinel.NLogViewer.Wpf\Sentinel.NLogViewer.Wpf.csproj" />
+    <ProjectReference Include="..\Sentinel.NLogViewer.TestLogging\Sentinel.NLogViewer.TestLogging.csproj" />
   </ItemGroup>
 
   <ItemGroup>

app/Sentinel.NLogViewer.App/Services/ConfigurationService.cs

@@ -52,7 +52,8 @@ public AppConfiguration LoadConfiguration()
                 Ports = new List<string> { "udp://0.0.0.0:4000" },
                 Language = string.Empty, // Empty means auto-detect on first start
                 MaxLogEntriesPerTab = 10000,
-                AutoStartListening = false
+                AutoStartListening = false,
+                AutoStartTestLogging = false
             };
         }
 
@@ -79,5 +80,8 @@ public class AppConfiguration
         public string Language { get; set; } = string.Empty; // Empty means auto-detect
         public int MaxLogEntriesPerTab { get; set; } = 10000;
         public bool AutoStartListening { get; set; } = false;
+
+        /// <summary>When true (Debug only), auto-start the test log generator on startup.</summary>
+        public bool AutoStartTestLogging { get; set; } = false;
     }
 }

app/Sentinel.NLogViewer.App/Services/TestLoggingService.cs

@@ -0,0 +1,61 @@
+using System.ComponentModel;
+using Sentinel.NLogViewer.TestLogging;
+
+namespace Sentinel.NLogViewer.App.Services;
+
+/// <summary>
+/// Holds and controls the test log generator runner for the debug panel and optional auto-start.
+/// </summary>
+public sealed class TestLoggingService : INotifyPropertyChanged
+{
+    private TestLogGeneratorRunner? _runner;
+
+    /// <summary>Whether the test log generator is currently running.</summary>
+    public bool IsRunning => _runner?.IsRunning ?? false;
+
+    /// <summary>Total normal messages generated (0 if not running).</summary>
+    public int MessageCount => _runner?.MessageCount ?? 0;
+
+    /// <summary>Total exception logs generated (0 if not running).</summary>
+    public int ExceptionCount => _runner?.ExceptionCount ?? 0;
+
+    /// <summary>
+    /// Starts the test log generator with the given options. Stops any existing runner first.
+    /// </summary>
+    public void Start(TestLoggingOptions options)
+    {
+        if (options == null)
+            throw new ArgumentNullException(nameof(options));
+
+        Stop();
+        _runner = new TestLogGeneratorRunner(options);
+        _runner.CountsChanged += OnCountsChanged;
+        _runner.Start();
+        OnPropertyChanged(nameof(IsRunning));
+        OnPropertyChanged(nameof(MessageCount));
+        OnPropertyChanged(nameof(ExceptionCount));
+    }
+
+    /// <summary>Stops and disposes the current runner.</summary>
+    public void Stop()
+    {
+        if (_runner == null) return;
+        _runner.CountsChanged -= OnCountsChanged;
+        _runner.Dispose();
+        _runner = null;
+        OnPropertyChanged(nameof(IsRunning));
+        OnPropertyChanged(nameof(MessageCount));
+        OnPropertyChanged(nameof(ExceptionCount));
+    }
+
+    private void OnCountsChanged(object? sender, EventArgs e)
+    {
+        OnPropertyChanged(nameof(MessageCount));
+        OnPropertyChanged(nameof(ExceptionCount));
+    }
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    private void OnPropertyChanged(string propertyName) =>
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+}

app/Sentinel.NLogViewer.App/TestLoggingWindow.xaml

@@ -0,0 +1,81 @@
+<Window x:Class="Sentinel.NLogViewer.App.TestLoggingWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        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"
+        xmlns:viewModels="clr-namespace:Sentinel.NLogViewer.App.ViewModels"
+        mc:Ignorable="d"
+        Title="Test Logging (Debug)"
+        Height="380"
+        Width="400"
+        WindowStartupLocation="CenterOwner"
+        ResizeMode="CanResize"
+        d:DataContext="{d:DesignInstance viewModels:TestLoggingViewModel}">
+    <Grid Margin="12">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <GroupBox Header="Parameters" Grid.Row="0" Margin="0,0,0,10">
+            <Grid Margin="8">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="Auto" />
+                    <ColumnDefinition Width="*" />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
+                </Grid.RowDefinitions>
+
+                <TextBlock Grid.Row="0" Grid.Column="0" Text="NLog target:" VerticalAlignment="Center" Margin="0,4" />
+                <ComboBox Grid.Row="0" Grid.Column="1" Margin="0,4"
+                          ItemsSource="{Binding TargetNames}"
+                          SelectedItem="{Binding TargetName, UpdateSourceTrigger=PropertyChanged}"
+                          IsEditable="True"
+                          MinWidth="120" />
+
+                <TextBlock Grid.Row="1" Grid.Column="0" Text="UDP host:" VerticalAlignment="Center" Margin="0,4" />
+                <TextBox Grid.Row="1" Grid.Column="1" Margin="0,4" Padding="4,2"
+                         Text="{Binding UdpHost, UpdateSourceTrigger=PropertyChanged}" />
+
+                <TextBlock Grid.Row="2" Grid.Column="0" Text="UDP port:" VerticalAlignment="Center" Margin="0,4" />
+                <TextBox Grid.Row="2" Grid.Column="1" Margin="0,4" Padding="4,2"
+                         Text="{Binding UdpPort, UpdateSourceTrigger=PropertyChanged}" />
+
+                <TextBlock Grid.Row="3" Grid.Column="0" Text="Interval (ms):" VerticalAlignment="Center" Margin="0,4" />
+                <TextBox Grid.Row="3" Grid.Column="1" Margin="0,4" Padding="4,2"
+                         Text="{Binding MessageIntervalMs, UpdateSourceTrigger=PropertyChanged}" />
+
+                <TextBlock Grid.Row="4" Grid.Column="0" Text="Exception % (0-100):" VerticalAlignment="Center" Margin="0,4" />
+                <TextBox Grid.Row="4" Grid.Column="1" Margin="0,4" Padding="4,2"
+                         Text="{Binding ExceptionProbabilityPercent, UpdateSourceTrigger=PropertyChanged}" />
+            </Grid>
+        </GroupBox>
+
+        <StackPanel Grid.Row="1" Orientation="Horizontal" Margin="0,0,0,10">
+            <Button Content="Start" Command="{Binding StartCommand}" Padding="12,6" Margin="0,0,8,0" />
+            <Button Content="Stop" Command="{Binding StopCommand}" Padding="12,6" />
+        </StackPanel>
+
+        <TextBlock Grid.Row="2" Margin="0,0,0,4">
+            <Run Text="Status: " FontWeight="SemiBold" />
+            <Run Text="{Binding StatusText, Mode=OneWay}" />
+        </TextBlock>
+        <TextBlock Grid.Row="3" Margin="0,0,0,4">
+            <Run Text="Messages: " />
+            <Run Text="{Binding MessageCount, Mode=OneWay}" FontWeight="SemiBold" />
+        </TextBlock>
+        <TextBlock Grid.Row="4" Margin="0,0,0,4">
+            <Run Text="Exceptions: " />
+            <Run Text="{Binding ExceptionCount, Mode=OneWay}" FontWeight="SemiBold" />
+        </TextBlock>
+    </Grid>
+</Window>