잠금화면 플레이어 재생시간 동기화

SodaLive/Sources/Content/Player/ContentPlayerPlayManager.swift

@@ -46,11 +46,21 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
     
     override init() {
         self.player = AVPlayer()
+        
+        do {
+            let audioSession = AVAudioSession.sharedInstance()
+            try audioSession.setCategory(.playback, mode: .moviePlayback)
+            try audioSession.setActive(true)
+        } catch {
+            DEBUG_LOG("Audio Session 설정 실패: \(error.localizedDescription)")
+        }
+        
         super.init()
     }
     
     func setPlaylist(playlist: [AudioContentPlaylistContent]) {
         resetPlayer()
+        self.registerRemoteControlEvents()
         self.playlist = playlist
         playlistManager = AudioContentPlaylistManager(playlist: playlist)
         playNextContent()
@@ -70,7 +80,6 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
             .sink { [weak self] currentTime in
                 if !(self?.isEditing ?? false) {
                     self?.currentTime = CMTimeGetSeconds(currentTime)
-                    MPNowPlayingInfoCenter.default().nowPlayingInfo?[MPNowPlayingInfoPropertyElapsedPlaybackTime] = self?.currentTime
                 }
             }
             .store(in: &cancellables)
@@ -110,16 +119,7 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
             }
             .store(in: &cancellables)
         
-        do {
-            let audioSession = AVAudioSession.sharedInstance()
-            try audioSession.setCategory(.playback, mode: .moviePlayback)
-            try audioSession.setActive(true)
-            
-            self.fetchAlbumArtAndUpdateNowPlayingInfo()
-            self.registerRemoteControlEvents()
-        } catch {
-            DEBUG_LOG("Audio Session 설정 실패: \(error.localizedDescription)")
-        }
+        self.fetchAlbumArtAndUpdateNowPlayingInfo()
     }
     
     private func checkPlaybackStart(bufferedTime: Double, isLikelyToKeepUp: Bool) {
@@ -138,6 +138,7 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
                 DEBUG_LOG("재생 중단: 버퍼링 부족 (\(bufferedTime)초)")
             }
         }
+        updateNowPlayingInfo()
     }
     
     private func handlePlaybackEnded() {
@@ -283,10 +284,24 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
         }
     }
     
+    private func updateNowPlayingInfo() {
+        guard var nowPlayingInfo = MPNowPlayingInfoCenter.default().nowPlayingInfo else { return }
+
+        nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player?.currentTime().seconds
+        nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = isPlaying ? 1.0 : 0.0
+
+        let duration = CMTimeGetSeconds(player?.currentItem?.duration ?? CMTime.zero)
+        if duration.isFinite {
+            nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = duration
+        }
+
+        MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
+    }
+    
     private func registerNowPlayingInfoCenter(with albumArtImage: UIImage?) {
-        let center = MPNowPlayingInfoCenter.default()
-        var nowPlayingInfo = [String: Any]()
+        guard let currentItem = player?.currentItem else { return }
         
+        var nowPlayingInfo = [String: Any]()
         nowPlayingInfo[MPMediaItemPropertyTitle] = title
         nowPlayingInfo[MPMediaItemPropertyArtist] = nickname
         
@@ -296,33 +311,51 @@ final class ContentPlayerPlayManager: NSObject, ObservableObject {
         }
         
         if let player = player {
-            nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = player.currentItem?.duration.seconds
             nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = player.rate
+            nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player.currentTime().seconds
+            
+            // CMTimeGetSeconds를 사용해 duration을 가져옴
+            let duration = CMTimeGetSeconds(currentItem.duration)
+            if duration.isFinite {
+                nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = duration
+            }
         }
         
-        center.nowPlayingInfo = nowPlayingInfo
+        MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
     }
     
     private func registerRemoteControlEvents() {
         let center = MPRemoteCommandCenter.shared()
         
-        center.playCommand.isEnabled = true
         center.playCommand.addTarget { [unowned self] (commandEvent) -> MPRemoteCommandHandlerStatus in
             self.playOrPause()
             return .success
         }
         
-        center.pauseCommand.isEnabled = true
         center.pauseCommand.addTarget { [unowned self] (commandEvent) -> MPRemoteCommandHandlerStatus in
             self.playOrPause()
             return .success
         }
+        
+        center.nextTrackCommand.isEnabled = true
+        center.nextTrackCommand.addTarget { [unowned self] (commandEvent) -> MPRemoteCommandHandlerStatus in
+            self.playNextContent()
+            return .success
+        }
+        
+        center.previousTrackCommand.isEnabled = true
+        center.previousTrackCommand.addTarget { [unowned self] (commandEvent) -> MPRemoteCommandHandlerStatus in
+            self.playPreviousContent()
+            return .success
+        }
     }
     
     private func unRegisterRemoteControlEvents() {
         let center = MPRemoteCommandCenter.shared()
         center.playCommand.removeTarget(nil)
         center.pauseCommand.removeTarget(nil)
+        center.nextTrackCommand.removeTarget(nil)
+        center.previousTrackCommand.removeTarget(nil)
         UIApplication.shared.endReceivingRemoteControlEvents()
     }
 }