feat: Hook up the background play/pause buttons

Author: onato

PureTime/Sound/SoundManager.swift

@@ -28,10 +28,11 @@ class SoundManager: NSObject, SoundManagerProtocol {
         return player
     }()
 
-    override init() {
+    init(delegate: SoundManagerDelegate) {
         super.init()
         configureRemoteTransportControls()
         setupAudioSession()
+        self.delegate = delegate
     }
 
     func setupAudioSession() {

PureTime/ViewModel/TimerViewModel.swift

@@ -7,7 +7,9 @@ class TimerViewModel: NSObject, ObservableObject {
     @Published var isPlaying = false
     @Published var elapsedTime = 0
 
-    var soundManager: SoundManagerProtocol = SoundManager()
+    lazy var soundManager: SoundManagerProtocol = {
+        SoundManager(delegate: self)
+    }()
 
     var timer: Timer?
 
@@ -65,3 +67,13 @@ extension TimerViewModel {
         MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
     }
 }
+
+extension TimerViewModel: SoundManagerDelegate {
+    func didTapPlay() {
+        startTimer()
+    }
+    
+    func didTapPause() {
+        stopTimer()
+    }
+}