watafak

LightlessSync/Services/TextureCompression/TextureDownscaleService.cs

@@ -104,6 +104,37 @@ public sealed class TextureDownscaleService
         return originalPath;
     }
 
+    public Task WaitForPendingJobsAsync(IEnumerable<string>? hashes, CancellationToken token)
+    {
+        if (hashes is null)
+        {
+            return Task.CompletedTask;
+        }
+
+        var pending = new List<Task>();
+        var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+        foreach (var hash in hashes)
+        {
+            if (string.IsNullOrEmpty(hash) || !seen.Add(hash))
+            {
+                continue;
+            }
+
+            if (_activeJobs.TryGetValue(hash, out var job))
+            {
+                pending.Add(job);
+            }
+        }
+
+        if (pending.Count == 0)
+        {
+            return Task.CompletedTask;
+        }
+
+        return Task.WhenAll(pending).WaitAsync(token);
+    }
+
     private async Task DownscaleInternalAsync(string hash, string sourcePath, TextureMapKind mapKind)
     {
         TexHeaderInfo? headerInfo = null;