add text graphics element to playback troubleshooting (#2282)

* refactor graphics engine; async frame generation * add text graphics element to playback troubleshooting
2025-08-08 19:18:15 +00:00
parent 9f3db05c17
commit 76a589b538
44 changed files with 13408 additions and 220 deletions
@@ -0,0 +1,3 @@
+namespace ErsatzTV.Application.Graphics;
+
+public record RefreshGraphicsElements : IRequest, IBackgroundServiceRequest;
@@ -0,0 +1,53 @@
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Metadata;
+using ErsatzTV.Infrastructure.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace ErsatzTV.Application.Graphics;
+
+public class RefreshGraphicsElementsHandler(
+    IDbContextFactory<TvContext> dbContextFactory,
+    ILocalFileSystem localFileSystem,
+    ILogger<RefreshGraphicsElementsHandler> logger)
+    : IRequestHandler<RefreshGraphicsElements>
+{
+    public async Task Handle(RefreshGraphicsElements request, CancellationToken cancellationToken)
+    {
+        await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
+
+        // cleanup existing elements
+        var allExisting = await dbContext.GraphicsElements
+            .ToListAsync(cancellationToken);
+
+        foreach (var existing in allExisting.Where(e => !localFileSystem.FileExists(e.Path)))
+        {
+            logger.LogWarning(
+                "Removing graphics element that references non-existing file {File}",
+                existing.Path);
+
+            dbContext.GraphicsElements.Remove(existing);
+        }
+
+        // add new elements
+        var newPaths = localFileSystem.ListFiles(FileSystemLayout.GraphicsElementsTextTemplatesFolder)
+            .Where(f => allExisting.All(e => e.Path != f))
+            .ToList();
+
+        foreach (var path in newPaths)
+        {
+            logger.LogDebug("Adding new graphics element from file {File}", path);
+
+            var graphicsElement = new GraphicsElement
+            {
+                Path = path,
+                Kind = GraphicsElementKind.Text
+            };
+
+            await dbContext.AddAsync(graphicsElement, cancellationToken);
+        }
+
+        await dbContext.SaveChangesAsync(cancellationToken);
+    }
+}