feat: logging

src/SiteMonitor/Program.cs

@@ -1,16 +1,37 @@
 using System;
+using System.IO;
 
 using Avalonia;
 using Avalonia.ReactiveUI;
 
+using log4net;
+using log4net.Config;
+
 namespace SiteMonitor;
 
 internal sealed class Program {
+  /// <summary>
+  ///   The logger.
+  /// </summary>
+  private static readonly ILog LOG = LogManager.GetLogger(typeof(Program));
+
   // Initialization code. Don't use any Avalonia, third-party APIs or any
   // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
   // yet and stuff might break.
   [STAThread]
   public static void Main(string[] args) {
+#if DEBUG
+    XmlConfigurator.Configure(new FileInfo("log4net.debug.config"));
+#else
+      XmlConfigurator.Configure(new FileInfo("log4net.config"));
+#endif
+
+    LOG.Info("Started application");
+
+    AppDomain.CurrentDomain.UnhandledException += (_, exceptArgs) => {
+      LOG.Fatal("Unhandled exception", exceptArgs.ExceptionObject as Exception);
+    };
+
     BuildAvaloniaApp()
       .StartWithClassicDesktopLifetime(args);
   }

src/SiteMonitor/log4net.config

@@ -0,0 +1,24 @@
+<log4net>
+    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
+        <layout type="log4net.Layout.PatternLayout">
+            <conversionPattern value="%date [%thread] %-5level %logger - %message%newline"/>
+        </layout>
+    </appender>
+    <appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
+        <file type="log4net.Util.PatternString" value="${AppData}\\nullinside\\twitch-streaming-tools\\log.txt"/>
+        <appendToFile value="true"/>
+        <rollingStyle value="Size"/>
+        <maxSizeRollBackups value="5"/>
+        <maximumFileSize value="10MB"/>
+        <staticLogFileName value="true"/>
+        <layout type="log4net.Layout.PatternLayout">
+            <conversionPattern value="%date [%thread] %-5level %logger - %message%newline"/>
+        </layout>
+    </appender>
+
+    <root>
+        <level value="INFO"/>
+        <appender-ref ref="ConsoleAppender"/>
+        <appender-ref ref="FileAppender"/>
+    </root>
+</log4net>

src/SiteMonitor/log4net.debug.config

@@ -0,0 +1,12 @@
+<log4net>
+    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
+        <layout type="log4net.Layout.PatternLayout">
+            <conversionPattern value="%date [%thread] %-5level %logger - %message%newline"/>
+        </layout>
+    </appender>
+
+    <root>
+        <level value="DEBUG"/>
+        <appender-ref ref="ConsoleAppender"/>
+    </root>
+</log4net>