playing progress of feed audio

Yep/Realm/Models.swift

@@ -695,6 +695,18 @@ class FeedAudio: Object {
         return realm.objects(FeedAudio).filter(predicate).first
     }
 
+    var audioMetaInfo: (duration: Double, samples: [CGFloat])? {
+
+        if let metaDataInfo = decodeJSON(metadata) {
+            if let
+                duration = metaDataInfo[YepConfig.MetaData.audioDuration] as? Double,
+                samples = metaDataInfo[YepConfig.MetaData.audioSamples] as? [CGFloat] {
+                    return (duration, samples)
+            }
+        }
+
+        return nil
+    }
 }
 
 class Feed: Object {

Yep/ViewControllers/Conversation/ConversationViewController.swift

@@ -1691,9 +1691,9 @@ class ConversationViewController: BaseViewController {
         return width
     }
 
-    private var audioPlayedDurations = [String: Double]()
+    private var audioPlayedDurations = [String: NSTimeInterval]()
 
-    private func audioPlayedDurationOfMessage(message: Message) -> Double {
+    private func audioPlayedDurationOfMessage(message: Message) -> NSTimeInterval {
         let key = message.messageID
 
         if !key.isEmpty {
@@ -1705,7 +1705,7 @@ class ConversationViewController: BaseViewController {
         return 0
     }
 
-    private func setAudioPlayedDuration(audioPlayedDuration: Double, ofMessage message: Message) {
+    private func setAudioPlayedDuration(audioPlayedDuration: NSTimeInterval, ofMessage message: Message) {
         let key = message.messageID
         if !key.isEmpty {
             audioPlayedDurations[key] = audioPlayedDuration
@@ -2544,7 +2544,7 @@ class ConversationViewController: BaseViewController {
         }
 
         if let message = message {
-            let audioPlayedDuration = audioPlayedDurationOfMessage(message) as NSTimeInterval
+            let audioPlayedDuration = audioPlayedDurationOfMessage(message)
             YepAudioService.sharedManager.playAudioWithMessage(message, beginFromTime: audioPlayedDuration, delegate: self) {
                 let playbackTimer = NSTimer.scheduledTimerWithTimeInterval(0.02, target: self, selector: "updateAudioPlaybackProgress:", userInfo: nil, repeats: true)
                 YepAudioService.sharedManager.playbackTimer = playbackTimer

Yep/ViewControllers/Feeds/FeedsViewController.swift

@@ -103,6 +103,48 @@ class FeedsViewController: BaseViewController {
 
     var feeds = [DiscoveredFeed]()
 
+    private var audioPlayedDurations = [String: NSTimeInterval]()
+
+    private func audioPlayedDurationOfFeedAudio(feedAudio: FeedAudio) -> NSTimeInterval {
+        let key = feedAudio.feedID
+
+        if !key.isEmpty {
+            if let playedDuration = audioPlayedDurations[key] {
+                return playedDuration
+            }
+        }
+
+        return 0
+    }
+
+    private func setAudioPlayedDuration(audioPlayedDuration: NSTimeInterval, ofFeedAudio feedAudio: FeedAudio) {
+        let key = feedAudio.feedID
+        if !key.isEmpty {
+            audioPlayedDurations[key] = audioPlayedDuration
+        }
+
+//        // recover audio cells' UI
+//
+//        if audioPlayedDuration == 0 {
+//
+//            if let sender = message.fromFriend, index = messages.indexOf(message) {
+//
+//                let indexPath = NSIndexPath(forItem: index - displayedMessagesRange.location, inSection: 0)
+//
+//                if sender.friendState != UserFriendState.Me.rawValue { // from Friend
+//                    if let cell = conversationCollectionView.cellForItemAtIndexPath(indexPath) as? ChatLeftAudioCell {
+//                        cell.audioPlayedDuration = 0
+//                    }
+//
+//                } else {
+//                    if let cell = conversationCollectionView.cellForItemAtIndexPath(indexPath) as? ChatRightAudioCell {
+//                        cell.audioPlayedDuration = 0
+//                    }
+//                }
+//            }
+//        }
+    }
+
     private func updateFeedsTableViewOrInsertWithIndexPaths(indexPaths: [NSIndexPath]?) {
 
         // refresh skillUsers
@@ -427,6 +469,58 @@ class FeedsViewController: BaseViewController {
         }
     }
 
+    func updateAudioPlaybackProgress(timer: NSTimer) {
+
+        func updateCellOfFeedAudio(feedAudio: FeedAudio, withCurrentTime currentTime: NSTimeInterval) {
+
+            let feedID = feedAudio.feedID
+
+            for index in 0..<feeds.count {
+                let feed = feeds[index]
+                if feed.id == feedID {
+
+                    let indexPath = NSIndexPath(forRow: index, inSection: Section.Feed.rawValue)
+
+                    if let cell = feedsTableView.cellForRowAtIndexPath(indexPath) as? FeedSocialWorkCell {
+                        cell.audioPlayedDuration = currentTime
+                    }
+
+                    break
+                }
+            }
+
+//            if let messageIndex = messages.indexOf(message) {
+//
+//                let indexPath = NSIndexPath(forItem: messageIndex - displayedMessagesRange.location, inSection: 0)
+//
+//                if let sender = message.fromFriend {
+//                    if sender.friendState != UserFriendState.Me.rawValue {
+//                        if let cell = conversationCollectionView.cellForItemAtIndexPath(indexPath) as? ChatLeftAudioCell {
+//                            cell.audioPlayedDuration = currentTime
+//                        }
+//
+//                    } else {
+//                        if let cell = conversationCollectionView.cellForItemAtIndexPath(indexPath) as? ChatRightAudioCell {
+//                            cell.audioPlayedDuration = currentTime
+//                        }
+//                    }
+//                }
+//            }
+        }
+
+        if let audioPlayer = YepAudioService.sharedManager.audioPlayer {
+
+            if let playingFeedAudio = YepAudioService.sharedManager.playingFeedAudio {
+
+                let currentTime = audioPlayer.currentTime
+
+                setAudioPlayedDuration(currentTime, ofFeedAudio: playingFeedAudio )
+                
+                updateCellOfFeedAudio(playingFeedAudio, withCurrentTime: currentTime)
+            }
+        }
+    }
+
     // MARK: - Navigation
 
     override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
@@ -764,9 +858,13 @@ extension FeedsViewController: UITableViewDataSource, UITableViewDelegate {
                             cell.audioPlaying = false
 
                         } else {
-                            YepAudioService.sharedManager.playAudioWithFeedAudio(feedAudio, beginFromTime: 0, delegate: strongSelf, success: {
+                            let audioPlayedDuration = strongSelf.audioPlayedDurationOfFeedAudio(feedAudio)
+                            YepAudioService.sharedManager.playAudioWithFeedAudio(feedAudio, beginFromTime: audioPlayedDuration, delegate: strongSelf, success: {
                                 println("playAudioWithFeedAudio success!")
 
+                                let playbackTimer = NSTimer.scheduledTimerWithTimeInterval(0.02, target: strongSelf, selector: "updateAudioPlaybackProgress:", userInfo: nil, repeats: true)
+                                YepAudioService.sharedManager.playbackTimer = playbackTimer
+
                                 cell.audioPlaying = true
                             })
                         }

Yep/Views/Cells/ChatLeftAudio/ChatLeftAudioCell.swift

@@ -12,7 +12,7 @@ class ChatLeftAudioCell: ChatBaseCell {
 
     var message: Message?
 
-    var audioPlayedDuration: Double = 0 {
+    var audioPlayedDuration: NSTimeInterval = 0 {
         willSet {
             updateAudioInfoViews()
         }

Yep/Views/Cells/FeedSocialWork/FeedSocialWorkCell.swift

@@ -70,6 +70,23 @@ class FeedSocialWorkCell: FeedBasicCell {
         }
     }
     var playOrPauseAudioAction: (FeedSocialWorkCell -> Void)?
+    var audioPlayedDuration: NSTimeInterval = 0 {
+        willSet {
+            updateVoiceContainerView()
+        }
+    }
+    private func updateVoiceContainerView() {
+
+        guard let feed = feed, realm = try? Realm(), feedAudio = FeedAudio.feedAudioWithFeedID(feed.id, inRealm: realm) else {
+            return
+        }
+
+        if let (audioDuration, audioSamples) = feedAudio.audioMetaInfo {
+
+            voiceSampleView.samples = audioSamples
+            voiceSampleView.progress = CGFloat(audioPlayedDuration / audioDuration)
+        }
+    }
 
     static let messageTextViewMaxWidth: CGFloat = {
         let maxWidth = UIScreen.mainScreen().bounds.width - (15 + 40 + 10 + 15)