Control PC playback through interactive Live Activity intents

MusicBridge/LiveActivityManager.swift

@@ -32,18 +32,21 @@ final class LiveActivityManager: ObservableObject {
               duration: max(0, state.endSeconds - state.startSeconds), updatedAt: now, connected: true)
     }
 
-    func start(_ state: MediaState) {
+    func start(_ state: MediaState, connection: Connection) {
         guard !running, state.hasSession, UIApplication.shared.applicationState == .active else { return }
         guard ActivityAuthorizationInfo().areActivitiesEnabled else {
             error = "Разрешите Live Activities в настройках MusicBridge на iPhone."
             return
         }
         do {
+            // Migrate existing pairing so an explicit lock-screen action can read it after first unlock.
+            try KeychainStore.save(connection)
             let value = Self.content(state)
             let new = try Activity.request(attributes: MusicActivityAttributes(),
                                            content: ActivityContent(state: value, staleDate: Date().addingTimeInterval(15)),
                                            pushType: nil)
             activity = new
+            UserDefaults.standard.set(connection.fingerprint, forKey: LiveActivityCommands.bindingKey + new.id)
             last = value
             running = true
             error = nil
@@ -72,6 +75,7 @@ final class LiveActivityManager: ObservableObject {
 
     func end() {
         guard let activity else { return }
+        UserDefaults.standard.removeObject(forKey: LiveActivityCommands.bindingKey + activity.id)
         self.activity = nil
         running = false
         last = nil