Add start of downloading library item on iOS

ios/App/App/plugins/AbsDownloader.swift

@@ -13,11 +13,59 @@ public class AbsDownloader: CAPPlugin {
     @objc func downloadLibraryItem(_ call: CAPPluginCall) {
         let libraryItemId = call.getString("libraryItemId")
         let episodeId = call.getString("episodeId")
-        let localFolderId = call.getString("localFolderId")
         
-        // TODO: Implement download
+        NSLog("Download library item \(libraryItemId ?? "N/A") episode \(episodeId ?? "")")
-        NSLog("Download library item \(libraryItemId ?? "N/A") episode \(episodeId ?? "") to folder \(localFolderId ?? "N/A")")
         
-        call.resolve()
+        ApiClient.getLibraryItemWithProgress(libraryItemId: libraryItemId!, episodeId: episodeId) { libraryItem in
+            if (libraryItem == nil) {
+                NSLog("Library item not found")
+                call.resolve()
+            } else {
+                NSLog("Got library item \(libraryItem!)")
+                
+                // TODO: break out in seperate functions
+                libraryItem!.media.tracks?.forEach { track in
+                    NSLog("TRACK \(track.contentUrl!)")
+                    // filename needs to be encoded otherwise would just use contentUrl
+                    let filename = track.metadata?.filename ?? ""
+                    let filenameEncoded = filename.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)
+                    let urlstr = "\(Store.serverConfig!.address)/s/item/\(libraryItemId!)/\(filenameEncoded ?? "")?token=\(Store.serverConfig!.token)"
+                    let url = URL(string: urlstr)!
+                    
+                    
+                    let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
+                    let itemDirectory = documentsDirectory.appendingPathComponent("\(libraryItemId!)")
+                    NSLog("ITEM DIR \(itemDirectory)")
+                    
+                    // Create library item directory
+                    do {
+                        try FileManager.default.createDirectory(at: itemDirectory, withIntermediateDirectories: false)
+                    } catch {
+                        NSLog("Failed to CREATE LI DIRECTORY \(error)")
+                    }
+               
+                    // Output filename
+                    let trackFilename = itemDirectory.appendingPathComponent("\(filename)")
+                    
+                    let downloadTask = URLSession.shared.downloadTask(with: url) { urlOrNil, responseOrNil, errorOrNil in
+ 
+                        guard let fileURL = urlOrNil else { return }
+                        
+                        do {
+                            NSLog("Download TMP file URL \(fileURL)")
+                            let imageData = try Data(contentsOf:fileURL)
+                            try imageData.write(to: trackFilename)
+                            NSLog("Download written to \(trackFilename)")
+                        } catch {
+                            NSLog("FILE ERROR: \(error)")
+                        }
+                    }
+                    downloadTask.resume()
+                }
+            
+                
+                call.resolve()
+            }
+        }
     }
 }

ios/App/Shared/models/DataClasses.swift

@@ -15,6 +15,7 @@ struct LibraryItem: Codable {
     var folderId: String
     var path: String
     var relPath: String
+    var isFile: Bool
     var mtimeMs: Int64
     var ctimeMs: Int64
     var birthtimeMs: Int64
@@ -27,6 +28,7 @@ struct LibraryItem: Codable {
     var mediaType: String
     var media: MediaType
     var libraryFiles: [LibraryFile]
+    var userMediaProgress:MediaProgress?
 }
 struct MediaType: Codable {
     var libraryItemId: String?
@@ -125,3 +127,15 @@ struct LibraryFile: Codable {
     var ino: String
     var metadata: FileMetadata
 }
+struct MediaProgress:Codable {
+    var id:String
+    var libraryItemId:String
+    var episodeId:String?
+    var duration:Double
+    var progress:Double
+    var currentTime:Double
+    var isFinished:Bool
+    var lastUpdate:Int64
+    var startedAt:Int64
+    var finishedAt:Int64?
+}

ios/App/Shared/util/ApiClient.swift

@@ -60,6 +60,27 @@ class ApiClient {
             }
         }
     }
+    public static func getResource<T: Decodable>(endpoint: String, decodable: T.Type = T.self, callback: ((_ param: T?) -> Void)?) {
+        if (Store.serverConfig == nil) {
+            NSLog("Server config not set")
+            callback?(nil)
+            return
+        }
+        
+        let headers: HTTPHeaders = [
+            "Authorization": "Bearer \(Store.serverConfig!.token)"
+        ]
+        
+        AF.request("\(Store.serverConfig!.address)/\(endpoint)", method: .get, encoding: JSONEncoding.default, headers: headers).responseDecodable(of: decodable) { response in
+            switch response.result {
+                case .success(let obj):
+                    callback?(obj)
+                case .failure(let error):
+                    NSLog("api request to \(endpoint) failed")
+                    print(error)
+            }
+        }
+    }
     
     public static func startPlaybackSession(libraryItemId: String, episodeId: String?, forceTranscode:Bool, callback: @escaping (_ param: PlaybackSession) -> Void) {
         var endpoint = "api/items/\(libraryItemId)/play"
@@ -83,4 +104,14 @@ class ApiClient {
     public static func reportPlaybackProgress(report: PlaybackReport, sessionId: String) {
         try? postResource(endpoint: "api/session/\(sessionId)/sync", parameters: report.asDictionary().mapValues({ value in "\(value)" }), callback: nil)
     }
+    public static func getLibraryItemWithProgress(libraryItemId:String, episodeId:String?, callback: @escaping (_ param: LibraryItem?) -> Void) {
+        var endpoint = "api/items/\(libraryItemId)?expanded=1&include=progress"
+        if episodeId != nil {
+            endpoint += "&episodeId=\(episodeId!)"
+        }
+        
+        ApiClient.getResource(endpoint: endpoint, decodable: LibraryItem.self) { obj in
+                callback(obj)
+        }
+    }
 }