Functions to update local progress

ios/App/Shared/models/LocalLibrary.swift

@@ -151,6 +151,8 @@ struct LocalMediaProgress: Realmable, Codable {
     var libraryItemId: String?
     var episodeId: String?
     
+    var progressPercent: Int { Int(self.progress * 100) }
+    
     static func primaryKey() -> String? {
         return "id"
     }

ios/App/Shared/models/LocalLibraryExtensions.swift

@@ -152,4 +152,32 @@ extension LocalMediaProgress {
         self.startedAt = progress.startedAt
         self.finishedAt = progress.finishedAt
     }
+    
+    mutating func updateIsFinished(_ finished: Bool) {
+        if self.isFinished != finished {
+            self.progress = finished ? 1.0 : 0.0
+        }
+        
+        self.isFinished = finished
+        self.lastUpdate = Int(Date().timeIntervalSince1970)
+        self.finishedAt = finished ? lastUpdate : nil
+    }
+    
+    mutating func updateFromPlaybackSession(_ playbackSession: PlaybackSession) {
+        self.currentTime = playbackSession.currentTime
+        self.progress = playbackSession.progress
+        self.lastUpdate = Int(Date().timeIntervalSince1970)
+        self.isFinished = playbackSession.progress >= 100.0
+        self.finishedAt = self.isFinished ? self.lastUpdate : nil
+    }
+    
+    mutating func updateFromServerMediaProgress(_ serverMediaProgress: MediaProgress) {
+        self.isFinished = serverMediaProgress.isFinished
+        self.progress = serverMediaProgress.progress
+        self.currentTime = serverMediaProgress.currentTime
+        self.duration = serverMediaProgress.duration
+        self.lastUpdate = serverMediaProgress.lastUpdate
+        self.finishedAt = serverMediaProgress.finishedAt
+        self.startedAt = serverMediaProgress.startedAt
+    }
 }

ios/App/Shared/models/PlaybackSession.swift

@@ -29,4 +29,11 @@ struct PlaybackSession: Decodable, Encodable {
     var localLibraryItem: LocalLibraryItem?
     var serverConnectionConfigId: String?
     var serverAddress: String?
+    
+    var totalDuration: Double {
+        var total = 0.0
+        self.audioTracks.forEach { total += $0.duration }
+        return total
+    }
+    var progress: Double { self.currentTime / self.totalDuration }
 }

ios/App/Shared/util/NowPlayingInfo.swift

@@ -65,6 +65,7 @@ class NowPlayingInfo {
             
         MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
     }
+    
     public func reset() {
         nowPlayingInfo = [:]
         MPNowPlayingInfoCenter.default().nowPlayingInfo = nil
@@ -89,6 +90,7 @@ class NowPlayingInfo {
         nowPlayingInfo[MPMediaItemPropertyArtist] = metadata!.author ?? "unknown"
         nowPlayingInfo[MPMediaItemPropertyAlbumTitle] = metadata!.series
     }
+    
     private func shouldFetchCover(id: String) -> Bool {
         nowPlayingInfo[MPNowPlayingInfoPropertyExternalContentIdentifier] as? String != id || nowPlayingInfo[MPMediaItemPropertyArtwork] == nil
     }