Begin handling playback of local media

ios/App/App/plugins/AbsAudioPlayer.swift

@@ -36,16 +36,21 @@ public class AbsAudioPlayer: CAPPlugin {
             NSLog("provide library item id")
             return call.resolve()
         }
-        if libraryItemId!.starts(with: "local") {
-            NSLog("local items are not implemnted")
-            return call.resolve()
-        }
         
         initialPlayWhenReady = playWhenReady
         initialPlaybackRate = playbackRate
         
         PlayerHandler.stopPlayback()
         
+        let isLocalItem = libraryItemId?.starts(with: "local_") ?? false
+        if (isLocalItem) {
+            let item = Database.shared.getLocalLibraryItem(localLibraryItem: libraryItemId!)
+            // TODO: Logic required for podcasts here
+            let playbackSession = item?.getPlaybackSession(episode: nil)
+            PlayerHandler.startPlayback(session: playbackSession!, playWhenReady: playWhenReady, playbackRate: playbackRate)
+            self.sendMetadata()
+            call.resolve()
+        } else { // Playing from the server
             sendPrepareMetadataEvent(itemId: libraryItemId!, playWhenReady: playWhenReady)
             ApiClient.startPlaybackSession(libraryItemId: libraryItemId!, episodeId: episodeId, forceTranscode: false) { session in
                 do {
@@ -62,6 +67,7 @@ public class AbsAudioPlayer: CAPPlugin {
                 self.sendMetadata()
             }
         }
+    }
     @objc func closePlayback(_ call: CAPPluginCall) {
         NSLog("Close playback")
         

ios/App/Shared/models/LocalLibrary.swift

@@ -125,7 +125,7 @@ class LocalFile: Object, Encodable {
 }
 
 class LocalMediaProgress: Object, Encodable {
-    @Persisted var id: String = UUID().uuidString
+    @Persisted(primaryKey: true) var id: String = UUID().uuidString
     @Persisted var localLibraryItemId: String
     @Persisted var localEpisodeId: String? = ""
     @Persisted var duration: Double

ios/App/Shared/models/LocalLibraryExtensions.swift

@@ -58,6 +58,53 @@ extension LocalLibraryItem {
         self.serverAddress = server.address
         self.serverUserId = server.userId
     }
+    
+    func getDuration() -> Double {
+        var total = 0.0
+        self.media?.tracks.forEach { track in total += track.duration }
+        return total
+    }
+    
+    func getPlaybackSession(episode: LocalPodcastEpisode?) -> PlaybackSession {
+        let localEpisodeId = episode?.id
+        let sessionId = "play_local_\(UUID().uuidString)"
+        
+        // Get current progress from local media
+        let mediaProgressId = (localEpisodeId != nil) ? "\(self.id)-\(localEpisodeId!)" : self.id
+        let mediaProgress = Database.shared.getLocalMediaProgress(localMediaProgressId: mediaProgressId)
+        
+        // TODO: Clean up add mediaType methods for displayTitle and displayAuthor
+        let mediaMetadata = self.media?.metadata
+        let audioTracks = self.media?.tracks
+        let authorName = mediaMetadata?.authorName
+        
+        if let episode = episode {
+            // TODO: Implement podcast
+        }
+        
+        let dateNow = Date().timeIntervalSince1970
+        return PlaybackSession(
+            id: sessionId,
+            userId: self.serverUserId,
+            libraryItemId: self.libraryItemId,
+            episodeId: episode?.serverEpisodeId,
+            mediaType: self.mediaType,
+            chapters: [],
+            displayTitle: mediaMetadata?.title,
+            displayAuthor: authorName,
+            coverPath: nil,
+            duration: self.getDuration(),
+            playMethod: 3,
+            startedAt: dateNow,
+            updatedAt: 0,
+            timeListening: 0.0,
+            audioTracks: [],
+            currentTime: mediaProgress?.currentTime ?? 0.0,
+            libraryItem: nil,
+            serverConnectionConfigId: self.serverConnectionConfigId,
+            serverAddress: self.serverAddress
+        )
+    }
 }
 
 extension LocalMediaType {

ios/App/Shared/models/PlaybackSession.swift

@@ -25,8 +25,8 @@ struct PlaybackSession: Decodable, Encodable {
     var timeListening: Double
     var audioTracks: [AudioTrack]
     var currentTime: Double
-    var libraryItem: LibraryItem
-    // var localLibraryItem: LocalLibraryItem?
+    var libraryItem: LibraryItem?
+    //var localLibraryItem: LocalLibraryItem?
     var serverConnectionConfigId: String?
     var serverAddress: String?
 }

ios/App/Shared/util/Database.swift

@@ -229,4 +229,26 @@ class Database {
             }
         }
     }
+    
+    public func saveLocalMediaProgress(_ mediaProgress: LocalMediaProgress) {
+        Database.realmQueue.sync {
+            try! instance.write { instance.add(mediaProgress) }
+        }
+    }
+    
+    // For books this will just be the localLibraryItemId for podcast episodes this will be "{localLibraryItemId}-{episodeId}"
+    public func getLocalMediaProgress(localMediaProgressId: String) -> LocalMediaProgress? {
+        Database.realmQueue.sync {
+            instance.object(ofType: LocalMediaProgress.self, forPrimaryKey: localMediaProgressId)
+        }
+    }
+    
+    public func removeLocalMediaProgress(localMediaProgressId: String) {
+        Database.realmQueue.sync {
+            try! instance.write {
+                let progress = instance.object(ofType: LocalMediaProgress.self, forPrimaryKey: localMediaProgressId)
+                instance.delete(progress!)
+            }
+        }
+    }
 }