more consolidation

Jellyfin.Plugin.SRFPlay/Controllers/StreamProxyController.cs

@@ -52,6 +52,29 @@ public class StreamProxyController : ControllerBase
         Response.Headers["Access-Control-Max-Age"] = "86400"; // Cache preflight for 24 hours
     }
 
+    /// <summary>
+    /// Adds Cache-Control headers appropriate for the stream type.
+    /// Livestreams need frequent manifest refresh, VOD can be cached longer.
+    /// </summary>
+    /// <param name="itemId">The item ID to check.</param>
+    private void AddManifestCacheHeaders(string itemId)
+    {
+        var metadata = _proxyService.GetStreamMetadata(itemId);
+        var isLiveStream = metadata?.IsLiveStream ?? false;
+
+        if (isLiveStream)
+        {
+            // Livestreams need frequent manifest refresh (segments rotate every ~6-10s)
+            Response.Headers["Cache-Control"] = "max-age=2, must-revalidate";
+            _logger.LogDebug("Setting livestream cache headers for {ItemId}", itemId);
+        }
+        else
+        {
+            // VOD manifests are static, can cache longer
+            Response.Headers["Cache-Control"] = "max-age=3600";
+        }
+    }
+
     /// <summary>
     /// Handles CORS preflight OPTIONS requests for all proxy endpoints.
     /// </summary>
@@ -120,6 +143,9 @@ public class StreamProxyController : ControllerBase
                 return NotFound();
             }
 
+            // Set cache headers based on stream type (live vs VOD)
+            AddManifestCacheHeaders(actualItemId);
+
             _logger.LogDebug("Returning master manifest for item {ItemId} ({Length} bytes)", itemId, manifestContent.Length);
             return Content(manifestContent, "application/vnd.apple.mpegurl");
         }
@@ -170,6 +196,9 @@ public class StreamProxyController : ControllerBase
             var baseProxyUrl = $"{scheme}://{Request.Host}/Plugins/SRFPlay/Proxy/{itemId}";
             var rewrittenContent = RewriteSegmentUrls(manifestContent, baseProxyUrl);
 
+            // Set cache headers based on stream type (live vs VOD)
+            AddManifestCacheHeaders(actualItemId);
+
             _logger.LogDebug("Returning variant manifest for item {ItemId} ({Length} bytes)", itemId, rewrittenContent.Length);
             return Content(rewrittenContent, "application/vnd.apple.mpegurl");
         }