Yattee v2 rewrite

Yattee/Views/Player/ExpandedPlayerSheet+Debug.swift

@@ -0,0 +1,36 @@
+//
+//  ExpandedPlayerSheet+Debug.swift
+//  Yattee
+//
+//  Debug timer functionality for the expanded player sheet.
+//
+
+import SwiftUI
+
+#if os(iOS) || os(macOS)
+
+extension ExpandedPlayerSheet {
+    // MARK: - Debug Timer
+
+    /// Starts periodic updates of debug statistics from MPV backend.
+    func startDebugUpdates() {
+        stopDebugUpdates()
+        guard let backend = playerService?.currentBackend as? MPVBackend else { return }
+        debugStats = backend.getDebugStats()
+
+        debugUpdateTimer = Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true) { _ in
+            Task { @MainActor in
+                guard let backend = self.playerService?.currentBackend as? MPVBackend else { return }
+                self.debugStats = backend.getDebugStats()
+            }
+        }
+    }
+
+    /// Stops the debug statistics update timer.
+    func stopDebugUpdates() {
+        debugUpdateTimer?.invalidate()
+        debugUpdateTimer = nil
+    }
+}
+
+#endif