651 lines
21 KiB
Dart
651 lines
21 KiB
Dart
import 'dart:async';
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import 'package:disk_space/disk_space.dart';
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import 'package:filesize/filesize.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import 'package:freezer/api/deezer.dart';
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import 'package:freezer/api/definitions.dart';
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import 'package:freezer/settings.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:path/path.dart' as p;
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import 'package:permission_handler/permission_handler.dart';
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import 'package:freezer/translations.i18n.dart';
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import 'dart:io';
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import 'package:sqflite/sqflite.dart';
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import 'package:sqflite/sql.dart';
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DownloadManager downloadManager = DownloadManager();
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class DownloadManager {
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//Platform channels
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static MethodChannel platform = MethodChannel('f.f.freezer/native');
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static EventChannel eventChannel = EventChannel('f.f.freezer/downloads');
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bool running = false;
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int queueSize = 0;
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StreamController serviceEvents = StreamController.broadcast();
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String offlinePath;
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Database db;
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//Start/Resume downloads
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Future start() async {
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await updateServiceSettings();
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await platform.invokeMethod('start');
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}
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//Stop/Pause downloads
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Future stop() async {
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await platform.invokeMethod('stop');
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}
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Future init() async {
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//Remove old DB
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File oldDbFile = File(p.join((await getDatabasesPath()), 'offline.db'));
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if (await oldDbFile.exists()) {
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await oldDbFile.delete();
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}
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String dbPath = p.join((await getDatabasesPath()), 'offline2.db');
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//Open db
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db = await openDatabase(
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dbPath,
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version: 1,
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onCreate: (Database db, int version) async {
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Batch b = db.batch();
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//Create tables, if doesn't exit
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b.execute("""CREATE TABLE Tracks (
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id TEXT PRIMARY KEY, title TEXT, album TEXT, artists TEXT, duration INTEGER, albumArt TEXT, trackNumber INTEGER, offline INTEGER, lyrics TEXT, favorite INTEGER, diskNumber INTEGER, explicit INTEGER)""");
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b.execute("""CREATE TABLE Albums (
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id TEXT PRIMARY KEY, title TEXT, artists TEXT, tracks TEXT, art TEXT, fans INTEGER, offline INTEGER, library INTEGER, type INTEGER, releaseDate TEXT)""");
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b.execute("""CREATE TABLE Artists (
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id TEXT PRIMARY KEY, name TEXT, albums TEXT, topTracks TEXT, picture TEXT, fans INTEGER, albumCount INTEGER, offline INTEGER, library INTEGER, radio INTEGER)""");
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b.execute("""CREATE TABLE Playlists (
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id TEXT PRIMARY KEY, title TEXT, tracks TEXT, image TEXT, duration INTEGER, userId TEXT, userName TEXT, fans INTEGER, library INTEGER, description TEXT)""");
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await b.commit();
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}
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);
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//Create offline directory
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offlinePath = p.join((await getExternalStorageDirectory()).path, 'offline/');
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await Directory(offlinePath).create(recursive: true);
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//Update settings
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await updateServiceSettings();
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//Listen to state change event
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eventChannel.receiveBroadcastStream().listen((e) {
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if (e['action'] == 'onStateChange') {
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running = e['running'];
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queueSize = e['queueSize'];
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}
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//Forward
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serviceEvents.add(e);
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});
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await platform.invokeMethod('loadDownloads');
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}
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//Get all downloads from db
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Future<List<Download>> getDownloads() async {
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List raw = await platform.invokeMethod('getDownloads');
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return raw.map((d) => Download.fromJson(d)).toList();
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}
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//Insert track and metadata to DB
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Future _addTrackToDB(Batch batch, Track track, bool overwriteTrack) async {
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batch.insert('Tracks', track.toSQL(off: true), conflictAlgorithm: overwriteTrack?ConflictAlgorithm.replace:ConflictAlgorithm.ignore);
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batch.insert('Albums', track.album.toSQL(off: false), conflictAlgorithm: ConflictAlgorithm.ignore);
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//Artists
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for (Artist a in track.artists) {
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batch.insert('Artists', a.toSQL(off: false), conflictAlgorithm: ConflictAlgorithm.ignore);
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}
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return batch;
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}
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//Quality selector for custom quality
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Future qualitySelect(BuildContext context) async {
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AudioQuality quality;
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await showModalBottomSheet(
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context: context,
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builder: (context) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Padding(
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padding: EdgeInsets.fromLTRB(0, 12, 0, 2),
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child: Text(
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'Quality'.i18n,
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style: TextStyle(
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fontWeight: FontWeight.bold,
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fontSize: 20.0
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),
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),
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),
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ListTile(
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title: Text('MP3 128kbps'),
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onTap: () {
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quality = AudioQuality.MP3_128;
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Navigator.of(context).pop();
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},
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),
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ListTile(
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title: Text('MP3 320kbps'),
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onTap: () {
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quality = AudioQuality.MP3_320;
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Navigator.of(context).pop();
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},
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),
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ListTile(
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title: Text('FLAC'),
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onTap: () {
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quality = AudioQuality.FLAC;
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Navigator.of(context).pop();
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},
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)
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],
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);
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}
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);
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return quality;
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}
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Future<bool> addOfflineTrack(Track track, {private = true, BuildContext context}) async {
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//Permission
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if (!private && !(await checkPermission())) return false;
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//Ask for quality
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AudioQuality quality;
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if (!private && settings.downloadQuality == AudioQuality.ASK) {
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quality = await qualitySelect(context);
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if (quality == null) return false;
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}
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//Add to DB
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if (private) {
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Batch b = db.batch();
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b = await _addTrackToDB(b, track, true);
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await b.commit();
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//Cache art
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DefaultCacheManager().getSingleFile(track.albumArt.thumb);
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DefaultCacheManager().getSingleFile(track.albumArt.full);
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}
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//Get path
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String path = _generatePath(track, private);
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await platform.invokeMethod('addDownloads', [await Download.jsonFromTrack(track, path, private: private, quality: quality)]);
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await start();
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}
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Future addOfflineAlbum(Album album, {private = true, BuildContext context}) async {
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//Permission
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if (!private && !(await checkPermission())) return;
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//Ask for quality
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AudioQuality quality;
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if (!private && settings.downloadQuality == AudioQuality.ASK) {
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quality = await qualitySelect(context);
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if (quality == null) return false;
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}
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//Get from API if no tracks
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if (album.tracks == null || album.tracks.length == 0) {
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album = await deezerAPI.album(album.id);
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}
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//Add to DB
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if (private) {
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//Cache art
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DefaultCacheManager().getSingleFile(album.art.thumb);
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DefaultCacheManager().getSingleFile(album.art.full);
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Batch b = db.batch();
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b.insert('Albums', album.toSQL(off: true), conflictAlgorithm: ConflictAlgorithm.replace);
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for (Track t in album.tracks) {
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b = await _addTrackToDB(b, t, false);
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}
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await b.commit();
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}
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//Create downloads
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List<Map> out = [];
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for (Track t in album.tracks) {
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out.add(await Download.jsonFromTrack(t, _generatePath(t, private), private: private, quality: quality));
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}
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await platform.invokeMethod('addDownloads', out);
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await start();
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}
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Future addOfflinePlaylist(Playlist playlist, {private = true, BuildContext context, AudioQuality quality}) async {
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//Permission
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if (!private && !(await checkPermission())) return;
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//Ask for quality
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if (!private && settings.downloadQuality == AudioQuality.ASK && quality == null) {
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quality = await qualitySelect(context);
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if (quality == null) return false;
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}
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//Get tracks if missing
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if (playlist.tracks == null || playlist.tracks.length < playlist.trackCount) {
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playlist = await deezerAPI.fullPlaylist(playlist.id);
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}
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//Add to DB
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if (private) {
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Batch b = db.batch();
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b.insert('Playlists', playlist.toSQL(), conflictAlgorithm: ConflictAlgorithm.replace);
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for (Track t in playlist.tracks) {
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b = await _addTrackToDB(b, t, false);
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//Cache art
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DefaultCacheManager().getSingleFile(t.albumArt.thumb);
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DefaultCacheManager().getSingleFile(t.albumArt.full);
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}
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await b.commit();
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}
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//Generate downloads
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List<Map> out = [];
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for (int i=0; i<playlist.tracks.length; i++) {
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Track t = playlist.tracks[i];
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out.add(await Download.jsonFromTrack(t, _generatePath(
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t,
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private,
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playlistName: playlist.title,
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playlistTrackNumber: i,
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), private: private, quality: quality));
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}
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await platform.invokeMethod('addDownloads', out);
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await start();
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}
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//Get track and meta from offline DB
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Future<Track> getOfflineTrack(String id, {Album album, List<Artist> artists}) async {
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List tracks = await db.query('Tracks', where: 'id == ?', whereArgs: [id]);
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if (tracks.length == 0) return null;
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Track track = Track.fromSQL(tracks[0]);
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//Get album
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if (album == null) {
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List rawAlbums = await db.query('Albums', where: 'id == ?', whereArgs: [track.album.id]);
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if (rawAlbums.length > 0)
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track.album = Album.fromSQL(rawAlbums[0]);
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} else {
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track.album = album;
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}
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//Get artists
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if (artists == null) {
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List<Artist> newArtists = [];
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for (Artist artist in track.artists) {
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List rawArtist = await db.query('Artists', where: 'id == ?', whereArgs: [artist.id]);
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if (rawArtist.length > 0)
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newArtists.add(Artist.fromSQL(rawArtist[0]));
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}
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if (newArtists.length > 0)
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track.artists = newArtists;
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} else {
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track.artists = artists;
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}
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return track;
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}
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//Get offline library tracks
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Future<List<Track>> getOfflineTracks() async {
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List rawTracks = await db.query('Tracks', where: 'library == 1 AND offline == 1', columns: ['id']);
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List<Track> out = [];
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//Load track meta individually
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for (Map rawTrack in rawTracks) {
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out.add(await getOfflineTrack(rawTrack['id']));
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}
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return out;
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}
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//Get all offline available tracks
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Future<List<Track>> allOfflineTracks() async {
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List rawTracks = await db.query('Tracks', where: 'offline == 1', columns: ['id']);
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List<Track> out = [];
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//Load track meta individually
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for (Map rawTrack in rawTracks) {
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out.add(await getOfflineTrack(rawTrack['id']));
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}
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return out;
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}
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//Get all offline albums
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Future<List<Album>> getOfflineAlbums() async {
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List rawAlbums = await db.query('Albums', where: 'offline == 1', columns: ['id']);
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List<Album> out = [];
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//Load each album
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for (Map rawAlbum in rawAlbums) {
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out.add(await getOfflineAlbum(rawAlbum['id']));
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}
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return out;
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}
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//Get offline album with meta
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Future<Album> getOfflineAlbum(String id) async {
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List rawAlbums = await db.query('Albums', where: 'id == ?', whereArgs: [id]);
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if (rawAlbums.length == 0) return null;
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Album album = Album.fromSQL(rawAlbums[0]);
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List<Track> tracks = [];
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//Load tracks
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for (int i=0; i<album.tracks.length; i++) {
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tracks.add(await getOfflineTrack(album.tracks[i].id, album: album));
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}
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album.tracks = tracks;
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//Load artists
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List<Artist> artists = [];
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for (int i=0; i<album.artists.length; i++) {
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artists.add((await getOfflineArtist(album.artists[i].id))??album.artists[i]);
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}
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album.artists = artists;
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return album;
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}
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//Get offline artist METADATA, not tracks
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Future<Artist> getOfflineArtist(String id) async {
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List rawArtists = await db.query("Artists", where: 'id == ?', whereArgs: [id]);
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if (rawArtists.length == 0) return null;
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return Artist.fromSQL(rawArtists[0]);
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}
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//Get all offline playlists
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Future<List<Playlist>> getOfflinePlaylists() async {
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List rawPlaylists = await db.query('Playlists', columns: ['id']);
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List<Playlist> out = [];
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for (Map rawPlaylist in rawPlaylists) {
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out.add(await getPlaylist(rawPlaylist['id']));
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}
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return out;
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}
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//Get offline playlist
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Future<Playlist> getPlaylist(String id) async {
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List rawPlaylists = await db.query('Playlists', where: 'id == ?', whereArgs: [id]);
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if (rawPlaylists.length == 0) return null;
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Playlist playlist = Playlist.fromSQL(rawPlaylists[0]);
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//Load tracks
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List<Track> tracks = [];
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for (Track t in playlist.tracks) {
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tracks.add(await getOfflineTrack(t.id));
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}
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playlist.tracks = tracks;
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return playlist;
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}
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Future removeOfflineTracks(List<Track> tracks) async {
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for (Track t in tracks) {
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//Check if library
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List rawTrack = await db.query('Tracks', where: 'id == ?', whereArgs: [t.id], columns: ['favorite']);
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if (rawTrack.length > 0 && rawTrack[0]['favorite'] == 0) {
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//Count occurrences in playlists and albums
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List albums = await db.rawQuery('SELECT (id) FROM Albums WHERE tracks LIKE "%${t.id}%"');
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List playlists = await db.rawQuery('SELECT (id) FROM Playlists WHERE tracks LIKE "%${t.id}%"');
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if (albums.length + playlists.length == 0) {
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//Safe to remove
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await db.delete('Tracks', where: 'id == ?', whereArgs: [t.id]);
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//Remove file
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try {
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File(p.join(offlinePath, t.id)).delete();
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} catch (e) {
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print(e);
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}
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}
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}
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}
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}
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Future removeOfflineAlbum(String id) async {
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//Get album
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List rawAlbums = await db.query('Albums', where: 'id == ?', whereArgs: [id]);
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if (rawAlbums.length == 0) return;
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Album album = Album.fromSQL(rawAlbums[0]);
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//Remove album
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await db.delete('Albums', where: 'id == ?', whereArgs: [id]);
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//Remove tracks
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await removeOfflineTracks(album.tracks);
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}
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Future removeOfflinePlaylist(String id) async {
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//Fetch playlist
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List rawPlaylists = await db.query('Playlists', where: 'id == ?', whereArgs: [id]);
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if (rawPlaylists.length == 0) return;
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Playlist playlist = Playlist.fromSQL(rawPlaylists[0]);
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//Remove playlist
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await db.delete('Playlists', where: 'id == ?', whereArgs: [id]);
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await removeOfflineTracks(playlist.tracks);
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}
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//Check if album, track or playlist is offline
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Future<bool> checkOffline({Album album, Track track, Playlist playlist}) async {
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//Track
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if (track != null) {
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List res = await db.query('Tracks', where: 'id == ? AND offline == 1', whereArgs: [track.id]);
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if (res.length == 0) return false;
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return true;
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}
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//Album
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if (album != null) {
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List res = await db.query('Albums', where: 'id == ? AND offline == 1', whereArgs: [album.id]);
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if (res.length == 0) return false;
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return true;
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}
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//Playlist
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if (playlist != null && playlist.id != null) {
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List res = await db.query('Playlists', where: 'id == ?', whereArgs: [playlist.id]);
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if (res.length == 0) return false;
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return true;
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}
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return false;
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}
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//Offline search
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Future<SearchResults> search(String query) async {
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SearchResults results = SearchResults(tracks: [], albums: [], artists: [], playlists: []);
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//Tracks
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List tracksData = await db.rawQuery('SELECT * FROM Tracks WHERE offline == 1 AND title like "%$query%"');
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for (Map trackData in tracksData) {
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results.tracks.add(await getOfflineTrack(trackData['id']));
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}
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//Albums
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List albumsData = await db.rawQuery('SELECT (id) FROM Albums WHERE offline == 1 AND title like "%$query%"');
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for (Map rawAlbum in albumsData) {
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results.albums.add(await getOfflineAlbum(rawAlbum['id']));
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}
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//Playlists
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List playlists = await db.rawQuery('SELECT * FROM Playlists WHERE title like "%$query%"');
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for (Map playlist in playlists) {
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results.playlists.add(await getPlaylist(playlist['id']));
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}
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return results;
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}
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//Sanitize filename
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String sanitize(String input) {
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RegExp sanitize = RegExp(r'[\/\\\?\%\*\:\|\"\<\>]');
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return input.replaceAll(sanitize, '');
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}
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//Generate track download path
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String _generatePath(Track track, bool private, {String playlistName, int playlistTrackNumber}) {
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String path;
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if (private) {
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path = p.join(offlinePath, track.id);
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} else {
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//Download path
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path = settings.downloadPath;
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if (settings.playlistFolder && playlistName != null)
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path = p.join(path, sanitize(playlistName));
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if (settings.artistFolder)
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path = p.join(path, '%artist%');
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//Album folder / with disk number
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if (settings.albumFolder) {
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if (settings.albumDiscFolder) {
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path = p.join(path, '%album%' + ' - Disk ' + (track.diskNumber??1).toString());
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} else {
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path = p.join(path, '%album%');
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}
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}
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//Final path
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path = p.join(path, settings.downloadFilename);
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//Playlist track number variable (not accessible in service)
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if (playlistTrackNumber != null) {
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path = path.replaceAll('%playlistTrackNumber%', playlistTrackNumber.toString());
|
|
path = path.replaceAll('%0playlistTrackNumber%', playlistTrackNumber.toString().padLeft(2, '0'));
|
|
} else {
|
|
path = path.replaceAll('%playlistTrackNumber%', '');
|
|
path = path.replaceAll('%0playlistTrackNumber%', '');
|
|
}
|
|
}
|
|
return path;
|
|
}
|
|
|
|
//Get stats for library screen
|
|
Future<List<String>> getStats() async {
|
|
//Get offline counts
|
|
int trackCount = (await db.rawQuery('SELECT COUNT(*) FROM Tracks WHERE offline == 1'))[0]['COUNT(*)'];
|
|
int albumCount = (await db.rawQuery('SELECT COUNT(*) FROM Albums WHERE offline == 1'))[0]['COUNT(*)'];
|
|
int playlistCount = (await db.rawQuery('SELECT COUNT(*) FROM Playlists'))[0]['COUNT(*)'];
|
|
//Free space
|
|
double diskSpace = await DiskSpace.getFreeDiskSpace;
|
|
//Used space
|
|
List<FileSystemEntity> offlineStat = await Directory(offlinePath).list().toList();
|
|
int offlineSize = 0;
|
|
for (var fs in offlineStat) {
|
|
offlineSize += (await fs.stat()).size;
|
|
}
|
|
//Return in list, //TODO: Make into class in future
|
|
return ([
|
|
trackCount.toString(),
|
|
albumCount.toString(),
|
|
playlistCount.toString(),
|
|
filesize(offlineSize),
|
|
filesize((diskSpace * 1000000).floor())
|
|
]);
|
|
}
|
|
|
|
//Send settings to download service
|
|
Future updateServiceSettings() async {
|
|
await platform.invokeMethod('updateSettings', settings.getServiceSettings());
|
|
}
|
|
|
|
//Check storage permission
|
|
Future<bool> checkPermission() async {
|
|
if (await Permission.storage.request().isGranted) {
|
|
return true;
|
|
} else {
|
|
Fluttertoast.showToast(
|
|
msg: 'Storage permission denied!'.i18n,
|
|
toastLength: Toast.LENGTH_SHORT,
|
|
gravity: ToastGravity.BOTTOM
|
|
);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//Remove download from queue/finished
|
|
Future removeDownload(int id) async {
|
|
await platform.invokeMethod('removeDownload', {'id': id});
|
|
}
|
|
|
|
//Restart failed downloads
|
|
Future retryDownloads() async {
|
|
await platform.invokeMethod('retryDownloads');
|
|
}
|
|
|
|
//Delete downloads by state
|
|
Future removeDownloads(DownloadState state) async {
|
|
await platform.invokeMethod('removeDownloads', {'state': DownloadState.values.indexOf(state)});
|
|
}
|
|
|
|
}
|
|
|
|
class Download {
|
|
int id;
|
|
String path;
|
|
bool private;
|
|
String trackId;
|
|
String md5origin;
|
|
String mediaVersion;
|
|
String title;
|
|
String image;
|
|
int quality;
|
|
//Dynamic
|
|
DownloadState state;
|
|
int received;
|
|
int filesize;
|
|
|
|
Download({this.id, this.path, this.private, this.trackId, this.md5origin, this.mediaVersion,
|
|
this.title, this.image, this.state, this.received, this.filesize, this.quality});
|
|
|
|
//Get progress between 0 - 1
|
|
double get progress {
|
|
return ((received.toDouble()??0.0)/(filesize.toDouble()??1.0)).toDouble();
|
|
}
|
|
|
|
factory Download.fromJson(Map<dynamic, dynamic> data) {
|
|
return Download(
|
|
path: data['path'],
|
|
image: data['image'],
|
|
private: data['private'],
|
|
trackId: data['trackId'],
|
|
id: data['id'],
|
|
state: DownloadState.values[data['state']],
|
|
title: data['title'],
|
|
quality: data['quality']
|
|
);
|
|
}
|
|
|
|
//Change values from "update json"
|
|
void updateFromJson(Map<dynamic, dynamic> data) {
|
|
this.quality = data['quality'];
|
|
this.received = data['received']??0;
|
|
this.state = DownloadState.values[data['state']];
|
|
//Prevent null division later
|
|
this.filesize = ((data['filesize']??0) <= 0) ? 1 : (data['filesize']??1);
|
|
}
|
|
|
|
//Track to download JSON for service
|
|
static Future<Map> jsonFromTrack(Track t, String path, {private = true, AudioQuality quality}) async {
|
|
//Get download info
|
|
if (t.playbackDetails == null || t.playbackDetails == []) {
|
|
t = await deezerAPI.track(t.id);
|
|
}
|
|
return {
|
|
"private": private,
|
|
"trackId": t.id,
|
|
"md5origin": t.playbackDetails[0],
|
|
"mediaVersion": t.playbackDetails[1],
|
|
"quality": private
|
|
? settings.getQualityInt(settings.offlineQuality)
|
|
: settings.getQualityInt((quality??settings.downloadQuality)),
|
|
"title": t.title,
|
|
"path": path,
|
|
"image": t.albumArt.thumb
|
|
};
|
|
}
|
|
}
|
|
|
|
//Has to be same order as in java
|
|
enum DownloadState {
|
|
NONE,
|
|
DOWNLOADING,
|
|
POST,
|
|
DONE,
|
|
DEEZER_ERROR,
|
|
ERROR
|
|
} |