feat: now playing chapter track

ios/App/Shared/player/AudioPlayer.swift

@@ -224,6 +224,8 @@ class AudioPlayer: NSObject {
                     // Update the UI
                     NotificationCenter.default.post(name: NSNotification.Name(PlayerEvents.sleepSet.rawValue), object: nil)
                 }
+                // Update the now playing and chapter info
+                self.updateNowPlaying()
             }
         }
     }
@@ -443,6 +445,10 @@ class AudioPlayer: NSObject {
         }
     }
     
+    public func setChapterTrack() {
+        self.updateNowPlaying()
+    }
+
     public func getCurrentTime() -> Double? {
         guard let playbackSession = self.getPlaybackSession() else { return nil }
         let currentTrackTime = self.audioPlayer.currentTime().seconds
@@ -657,7 +663,16 @@ class AudioPlayer: NSObject {
     }
     private func updateNowPlaying() {
         NotificationCenter.default.post(name: NSNotification.Name(PlayerEvents.update.rawValue), object: nil)
-        if let duration = self.getDuration(), let currentTime = self.getCurrentTime() {
+        if let session = self.getPlaybackSession(), let currentChapter = session.getCurrentChapter(), PlayerSettings.main().chapterTrack {
+                    NowPlayingInfo.shared.update(
+                        duration: currentChapter.getRelativeChapterEndTime(),
+                        currentTime: currentChapter.getRelativeChapterCurrentTime(sessionCurrentTime: session.currentTime),
+                        rate: rate,
+                        chapterName: currentChapter.title,
+                        chapterNumber: (session.chapters.firstIndex(of: currentChapter) ?? 0) + 1,
+                        chapterCount: session.chapters.count
+                    )
+            } else if let duration = self.getDuration(), let currentTime = self.getCurrentTime() {
             NowPlayingInfo.shared.update(duration: duration, currentTime: currentTime, rate: rate)
         }
     }

ios/App/Shared/player/PlayerHandler.swift

@@ -61,6 +61,10 @@ class PlayerHandler {
         self.player?.setPlaybackRate(speed)
     }
     
+    public static func setChapterTrack() {
+        self.player?.setChapterTrack()
+    }
+
     public static func getSleepTimeRemaining() -> Double? {
         return self.player?.getSleepTimeRemaining()
     }