add log message broker sink

src/DotRecast.Recast.Demo/Logging/Sinks/LogMessageBrokerSink.cs

@@ -0,0 +1,26 @@
+using System;
+using System.IO;
+using Serilog.Core;
+using Serilog.Events;
+using Serilog.Formatting;
+
+namespace DotRecast.Recast.Demo.Logging.Sinks;
+
+public class LogMessageBrokerSink : ILogEventSink
+{
+    public static event Action<int, string> OnEmitted;
+
+    private readonly ITextFormatter _formatter;
+
+    public LogMessageBrokerSink(ITextFormatter formatter)
+    {
+        _formatter = formatter;
+    }
+
+    public void Emit(LogEvent logEvent)
+    {
+        using var writer = new StringWriter();
+        _formatter.Format(logEvent, writer);
+        OnEmitted?.Invoke((int)logEvent.Level, writer.ToString());
+    }
+}

src/DotRecast.Recast.Demo/Logging/Sinks/SerilogSinkExtensions.cs

@@ -0,0 +1,18 @@
+using Serilog;
+using Serilog.Configuration;
+using Serilog.Events;
+using Serilog.Formatting.Display;
+
+namespace DotRecast.Recast.Demo.Logging.Sinks;
+
+public static class SerilogSinkExtensions
+{
+    public static LoggerConfiguration LogMessageBroker(
+        this LoggerSinkConfiguration sinkConfiguration,
+        LogEventLevel restrictedToMinimumLevel = LogEventLevel.Verbose,
+        string outputTemplate = "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}")
+    {
+        var formatter = new MessageTemplateTextFormatter(outputTemplate);
+        return sinkConfiguration.Sink(new LogMessageBrokerSink(formatter));
+    }
+}

src/DotRecast.Recast.Demo/Program.cs

@@ -1,5 +1,6 @@
 using System.IO;
 using DotRecast.Core;
+using DotRecast.Recast.Demo.Logging.Sinks;
 using Serilog;
 using Serilog.Enrichers;
 
@@ -9,7 +10,6 @@ public static class Program
 {
     public static void Main(string[] args)
     {
-        
         var path = Loader.ToRPath("dungeon.obj");
         path = Path.GetDirectoryName(path);
         if (!string.IsNullOrEmpty(path))
@@ -25,6 +25,7 @@ public static class Program
             .Enrich.WithThreadId()
             .Enrich.WithThreadName()
             .Enrich.WithProperty(ThreadNameEnricher.ThreadNamePropertyName, "main")
+            .WriteTo.LogMessageBroker(outputTemplate: format)
             .WriteTo.Console(outputTemplate: format)
             .WriteTo.File(
                 "logs/log.log",

src/DotRecast.Recast.Demo/UI/RcLogView.cs

@@ -1,9 +1,12 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Linq;
 using System.Numerics;
 using System.Text;
+using DotRecast.Recast.Demo.Logging.Sinks;
 using DotRecast.Recast.Demo.Tools;
+using DotRecast.Recast.Demo.UI.ViewModels;
 using ImGuiNET;
 
 namespace DotRecast.Recast.Demo.UI;
@@ -13,29 +16,25 @@ public class RcLogView : IRcView
     private RecastDemoCanvas _canvas;
     private bool _mouseInside;
 
-    private List<string> _lines = new();
-    private readonly ConcurrentQueue<string> _output = new();
-    private readonly StringBuilder _outputStringBuilder = new();
-
-    private readonly ConcurrentQueue<string> _error = new();
-    private readonly StringBuilder _errorStringBuilder = new();
-
+    private readonly List<LogMessageItem> _lines;
+    private readonly ConcurrentQueue<LogMessageItem> _queues;
 
 
     public RcLogView()
     {
-        Console.SetOut(new ConsoleTextWriterHook(OnOut));
-        Console.SetError(new ConsoleTextWriterHook(OnError));
+        _lines = new();
+        _queues = new();
+
+        LogMessageBrokerSink.OnEmitted += OnOut;
     }
 
-    private void OnOut(string log)
+    private void OnOut(int level, string message)
     {
-        _output.Enqueue(log);
-    }
-
-    private void OnError(string log)
-    {
-        _error.Enqueue(log);
+        var lines = message
+            .Split(Environment.NewLine, StringSplitOptions.RemoveEmptyEntries)
+            .Select(x => new LogMessageItem { Level = level, Message = x });
+        
+        _lines.AddRange(lines);
     }
 
     public void Clear()
@@ -43,23 +42,6 @@ public class RcLogView : IRcView
         _lines.Clear();
     }
 
-    private void MergeLines(ConcurrentQueue<string> queue, StringBuilder builder)
-    {
-        while (queue.TryDequeue(out var s))
-        {
-            if (s != "\r\n")
-            {
-                builder.Append(s);
-            }
-            else
-            {
-                _lines.Add(builder.ToString());
-                builder.Clear();
-            }
-        }
-    }
-
-
     public void Bind(RecastDemoCanvas canvas)
     {
         _canvas = canvas;
@@ -67,16 +49,16 @@ public class RcLogView : IRcView
 
     public void Update(double dt)
     {
-        MergeLines(_output, _outputStringBuilder);
-        MergeLines(_error, _errorStringBuilder);
-        
+        while (_queues.TryDequeue(out var item))
+            _lines.Add(item);
+
         // buffer
         if (10240 < _lines.Count)
         {
             _lines.RemoveRange(0, _lines.Count - 8196);
         }
     }
-    
+
     public bool IsMouseInside() => _mouseInside;
 
     public void Draw(double dt)
@@ -97,7 +79,7 @@ public class RcLogView : IRcView
         if (ImGui.BeginChild("scrolling", Vector2.Zero, false, ImGuiWindowFlags.HorizontalScrollbar))
         {
             _mouseInside = ImGui.IsWindowHovered();
-            
+
             ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, Vector2.Zero);
 
             unsafe
@@ -108,7 +90,7 @@ public class RcLogView : IRcView
                 {
                     for (int lineNo = clipper.DisplayStart; lineNo < clipper.DisplayEnd; lineNo++)
                     {
-                        ImGui.TextUnformatted(_lines[lineNo]);
+                        ImGui.TextUnformatted(_lines[lineNo].Message);
                     }
                 }
 

src/DotRecast.Recast.Demo/UI/ViewModels/LogMessageItem.cs

@@ -0,0 +1,7 @@
+namespace DotRecast.Recast.Demo.UI.ViewModels;
+
+public class LogMessageItem
+{
+    public required int Level { get; init; }
+    public required string Message { get; init; }
+}