file change handling

src/SharpIDE.Application/Features/FileWatching/IdeFileSavedToDiskHandler.cs

@@ -0,0 +1,43 @@
+using SharpIDE.Application.Features.Analysis;
+using SharpIDE.Application.Features.Evaluation;
+using SharpIDE.Application.Features.Events;
+using SharpIDE.Application.Features.SolutionDiscovery;
+using SharpIDE.Application.Features.SolutionDiscovery.VsPersistence;
+
+namespace SharpIDE.Application.Features.FileWatching;
+
+public class IdeFileSavedToDiskHandler
+{
+	public SharpIdeSolutionModel SolutionModel { get; set; } = null!;
+
+	public IdeFileSavedToDiskHandler()
+	{
+		GlobalEvents.Instance.IdeFileSavedToDisk.Subscribe(HandleIdeFileChanged);
+	}
+
+	private async Task HandleIdeFileChanged(SharpIdeFile file)
+	{
+		if (file.IsCsprojFile)
+		{
+			await HandleCsprojChanged(file);
+		}
+		else if (file.IsRoslynWorkspaceFile)
+		{
+			await HandleWorkspaceFileChanged(file);
+		}
+	}
+
+	private async Task HandleCsprojChanged(SharpIdeFile file)
+	{
+		var project = SolutionModel.AllProjects.SingleOrDefault(p => p.FilePath == file.Path);
+		if (project is null) return;
+		await ProjectEvaluation.ReloadProject(file.Path);
+		await RoslynAnalysis.ReloadProject(project);
+		await RoslynAnalysis.UpdateSolutionDiagnostics();
+	}
+
+	private async Task HandleWorkspaceFileChanged(SharpIdeFile file)
+	{
+		await RoslynAnalysis.UpdateSolutionDiagnostics();
+	}
+}