From e756600b9755f6c3958c7f557ddec044c488fb55 Mon Sep 17 00:00:00 2001
From: Matt Parker <61717342+MattParkerDev@users.noreply.github.com>
Date: Fri, 1 Aug 2025 01:59:34 +1000
Subject: [PATCH] display logs

---
 .../Features/Build/BuildService.cs            |  4 ++-
 .../Components/TerminalOutputDisplay.razor    | 30 +++++++++++++++++--
 src/SharpIDE.Photino/wwwroot/index.html       |  1 +
 src/SharpIDE.Photino/wwwroot/scripts2.js      |  6 ++++
 4 files changed, 37 insertions(+), 4 deletions(-)
 create mode 100644 src/SharpIDE.Photino/wwwroot/scripts2.js

diff --git a/src/SharpIDE.Application/Features/Build/BuildService.cs b/src/SharpIDE.Application/Features/Build/BuildService.cs
index 1f2575b..f661c29 100644
--- a/src/SharpIDE.Application/Features/Build/BuildService.cs
+++ b/src/SharpIDE.Application/Features/Build/BuildService.cs
@@ -16,6 +16,7 @@ public enum BuildType
 }
 public class BuildService
 {
+	public event Func<Task> BuildStarted = () => Task.CompletedTask;
 	public Channel<string> BuildOutputChannel { get; } = Channel.CreateUnbounded<string>();
 	public async Task MsBuildSolutionAsync(string solutionFilePath, BuildType buildType = BuildType.Build)
 	{
@@ -24,7 +25,7 @@ public class BuildService
 			Loggers =
 			[
 				//new BinaryLogger { Parameters = "msbuild.binlog" },
-				new ConsoleLogger(LoggerVerbosity.Normal, message => BuildOutputChannel.Writer.TryWrite(message), s => { }, () => { }),
+				new ConsoleLogger(LoggerVerbosity.Minimal, message => BuildOutputChannel.Writer.TryWrite(message), s => { }, () => { }),
 				//new InMemoryLogger(LoggerVerbosity.Normal)
 			],
 		};
@@ -46,6 +47,7 @@ public class BuildService
 
 		await Task.Run(async () =>
 		{
+			await BuildStarted.Invoke();
 			var buildCompleteTcs = new TaskCompletionSource<BuildResult>();
 			BuildManager.DefaultBuildManager.BeginBuild(buildParameters);
 			var buildResult2 = BuildManager.DefaultBuildManager.PendBuildRequest(buildRequest);
diff --git a/src/SharpIDE.Photino/Components/TerminalOutputDisplay.razor b/src/SharpIDE.Photino/Components/TerminalOutputDisplay.razor
index 3e37b44..0c016c8 100644
--- a/src/SharpIDE.Photino/Components/TerminalOutputDisplay.razor
+++ b/src/SharpIDE.Photino/Components/TerminalOutputDisplay.razor
@@ -1,8 +1,12 @@
 @using SharpIDE.Application.Features.Build
-@inject BuildService BuildService
 
-<div style="height: 15rem; overflow-y: auto; padding: 1rem; background-color: #303030; border: 1px solid #ccc;">
-	@foreach(var line in _outputLines)
+@inject BuildService BuildService
+@inject IJSRuntime JsRuntime
+
+@implements IDisposable
+
+<div @ref="_logContainer" style="height: 15rem; overflow-y: auto; padding: 1rem; background-color: #303030; border: 1px solid #ccc;">
+	@foreach (var line in _outputLines)
 	{
 		<MudText Typo="Typo.body2">@line</MudText>
 	}
@@ -10,12 +14,32 @@
 
 @code {
 	private List<string> _outputLines = [];
+	private ElementReference _logContainer;
+
 	protected override async Task OnInitializedAsync()
 	{
+		BuildService.BuildStarted += ClearPreviousOutput;
 		await foreach (var logLine in BuildService.BuildOutputChannel.Reader.ReadAllAsync())
 		{
 			_outputLines.Add(logLine);
 			await InvokeAsync(StateHasChanged);
+			await ScrollToBottomAsync();
 		}
 	}
+
+	private async Task ClearPreviousOutput()
+	{
+		_outputLines.Clear();
+		await InvokeAsync(StateHasChanged);
+	}
+
+	private async Task ScrollToBottomAsync()
+	{
+		await JsRuntime.InvokeVoidAsync("scrollToBottom", _logContainer);
+	}
+
+	public void Dispose()
+	{
+		BuildService.BuildStarted -= ClearPreviousOutput;
+	}
 }
diff --git a/src/SharpIDE.Photino/wwwroot/index.html b/src/SharpIDE.Photino/wwwroot/index.html
index d4eb76d..aa06f56 100644
--- a/src/SharpIDE.Photino/wwwroot/index.html
+++ b/src/SharpIDE.Photino/wwwroot/index.html
@@ -18,6 +18,7 @@
         <a class="dismiss">🗙</a>
     </div>
 
+	<script src="scripts2.js"></script>
 	<script src="_content/BlazorMonaco/jsInterop.js"></script>
 	<script src="_content/BlazorMonaco/lib/monaco-editor/min/vs/loader.js"></script>
 	<script src="_content/BlazorMonaco/lib/monaco-editor/min/vs/editor/editor.main.js"></script>
diff --git a/src/SharpIDE.Photino/wwwroot/scripts2.js b/src/SharpIDE.Photino/wwwroot/scripts2.js
new file mode 100644
index 0000000..492b677
--- /dev/null
+++ b/src/SharpIDE.Photino/wwwroot/scripts2.js
@@ -0,0 +1,6 @@
+
+window.scrollToBottom = function(element) {
+	if (element) {
+		element.scrollTop = element.scrollHeight;
+	}
+}