726 lines
24 KiB
Dart
726 lines
24 KiB
Dart
import 'package:sqflite/sqflite.dart';
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import 'package:disk_space_plus/disk_space_plus.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 'dart:async';
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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 = const MethodChannel('f.f.freezer/native');
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static EventChannel eventChannel =
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const 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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late String offlinePath;
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late Database db;
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//Start/Resume downloads
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Future start() async {
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//Returns whether service is bound or not, the delay is really shitty/hacky way, until i find a real solution
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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(dbPath, 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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//Create offline directory
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offlinePath =
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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<Batch> _addTrackToDB(
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Batch batch, Track track, bool overwriteTrack) async {
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batch.insert('Tracks', track.toSQL(off: true),
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conflictAlgorithm: overwriteTrack
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? ConflictAlgorithm.replace
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: ConflictAlgorithm.ignore);
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batch.insert('Albums', track.album!.toSQL(off: false),
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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),
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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(fontWeight: FontWeight.bold, fontSize: 20.0),
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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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return quality;
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}
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Future<bool> addOfflineTrack(Track track,
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{private = true, BuildContext? context, isSingleton = false}) 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!) as FutureOr<AudioQuality?>);
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if (quality == null) return false;
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}
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//Fetch track if missing meta
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if (track.artists == null || track.artists!.isEmpty || track.album == null)
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track = await deezerAPI.track(track.id);
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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, isSingleton: isSingleton);
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await platform.invokeMethod('addDownloads', [
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await Download.jsonFromTrack(track, path,
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private: private, quality: quality)
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]);
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await start();
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return true;
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}
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Future addOfflineAlbum(Album? album,
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{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!) as FutureOr<AudioQuality?>);
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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!.isEmpty) {
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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),
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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),
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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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Future addOfflinePlaylist(Playlist? playlist,
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{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 &&
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settings.downloadQuality == AudioQuality.ASK &&
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quality == null) {
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quality = await (qualitySelect(context!) as FutureOr<AudioQuality?>);
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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 ||
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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(),
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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(
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t,
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_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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),
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private: private,
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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,
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{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.isEmpty) 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
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.query('Albums', where: 'id == ?', whereArgs: [track.album?.id]);
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if (rawAlbums.length > 0) 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 =
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await db.query('Artists', where: 'id == ?', whereArgs: [artist.id]);
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if (rawArtist.length > 0) newArtists.add(Artist.fromSQL(rawArtist[0]));
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}
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if (newArtists.length > 0) 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',
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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 as Iterable<Map<dynamic, dynamic>>) {
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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 =
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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 as Iterable<Map<dynamic, dynamic>>) {
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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 =
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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 as Iterable<Map<dynamic, dynamic>>) {
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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 =
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await db.query('Albums', where: 'id == ?', whereArgs: [id]);
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if (rawAlbums.isEmpty) throw Exception();
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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(
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(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 =
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await db.query("Artists", where: 'id == ?', whereArgs: [id]);
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if (rawArtists.isEmpty) 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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final rawPlaylists = await db.query('Playlists', columns: ['id']);
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final out = <Playlist>[];
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for (final rawPlaylist in rawPlaylists) {
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out.add(await getPlaylist(rawPlaylist));
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}
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return out;
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}
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Future<Playlist?> getPlaylistFromId(String id) async {
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final rawPlaylists =
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await db.query('Playlists', where: 'id == ?', whereArgs: [id]);
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if (rawPlaylists.isEmpty) return null;
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return await getPlaylist(rawPlaylists[0]);
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}
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//Get offline playlist
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Future<Playlist> getPlaylist(Map<String, Object?> rawPlaylist) async {
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// List rawPlaylists =
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// await db.query('Playlists', where: 'id == ?', whereArgs: [id]);
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Playlist playlist = Playlist.fromSQL(rawPlaylist);
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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',
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where: 'id == ?', whereArgs: [t.id], columns: ['favorite']);
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if (rawTrack.length > 0) {
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//Count occurrences in playlists and albums
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List albums = await db
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.rawQuery('SELECT (id) FROM Albums WHERE tracks LIKE "%${t.id}%"');
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List playlists = await db.rawQuery(
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'SELECT (id) FROM Playlists WHERE tracks LIKE "%${t.id}%"');
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if (albums.isEmpty &&
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playlists.isEmpty &&
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rawTrack[0]['favorite'] == 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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} else {
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await db.update('Tracks', {'offline': 0},
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where: 'id == ?', whereArgs: [t.id]);
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}
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}
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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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Future removeOfflineAlbum(String? id) async {
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//Get album
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List rawAlbums =
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await db.query('Albums', where: 'id == ?', whereArgs: [id]);
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if (rawAlbums.isEmpty) 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 =
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await db.query('Playlists', where: 'id == ?', whereArgs: [id]);
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if (rawPlaylists.isEmpty) 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(
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{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',
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where: 'id == ? AND offline == 1', whereArgs: [track.id]);
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if (res.isEmpty) 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',
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where: 'id == ? AND offline == 1', whereArgs: [album.id]);
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if (res.isEmpty) return false;
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return true;
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}
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//Playlist
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if (playlist != null) {
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List res = await db
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.query('Playlists', where: 'id == ?', whereArgs: [playlist.id]);
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if (res.isEmpty) 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 =
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SearchResults(tracks: [], albums: [], artists: [], playlists: []);
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//Tracks
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List tracksData = await db.rawQuery(
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'SELECT * FROM Tracks WHERE offline == 1 AND title like "%$query%"');
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for (Map trackData in tracksData as Iterable<Map<dynamic, dynamic>>) {
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results.tracks!.add((await getOfflineTrack(trackData['id']))!);
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}
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//Albums
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List albumsData = await db.rawQuery(
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'SELECT (id) FROM Albums WHERE offline == 1 AND title like "%$query%"');
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for (Map rawAlbum in albumsData as Iterable<Map<dynamic, dynamic>>) {
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results.albums!.add((await getOfflineAlbum(rawAlbum['id'])));
|
|
}
|
|
//Playlists
|
|
|
|
List playlists = await db.query("Playlists", where: "title like %$query%");
|
|
for (Map playlist in playlists as Iterable<Map<dynamic, dynamic>>) {
|
|
results.playlists!.add((await getPlaylist(playlist['id'])));
|
|
}
|
|
return results;
|
|
}
|
|
|
|
//Sanitize filename
|
|
String sanitize(String input) {
|
|
RegExp sanitize = RegExp(r'[\/\\\?\%\*\:\|\"\<\>]');
|
|
return input.replaceAll(sanitize, '');
|
|
}
|
|
|
|
//Generate track download path
|
|
String? _generatePath(Track? track, bool private,
|
|
{String? playlistName,
|
|
int? playlistTrackNumber,
|
|
bool isSingleton = false}) {
|
|
String? path;
|
|
if (private) {
|
|
path = p.join(offlinePath, track!.id);
|
|
} else {
|
|
//Download path
|
|
path = settings.downloadPath;
|
|
|
|
if (settings.playlistFolder && playlistName != null)
|
|
path = p.join(path!, sanitize(playlistName));
|
|
|
|
if (settings.artistFolder) path = p.join(path!, '%albumArtist%');
|
|
|
|
//Album folder / with disk number
|
|
if (settings.albumFolder) {
|
|
if (settings.albumDiscFolder) {
|
|
path = p.join(path!,
|
|
'%album%' + ' - Disk ' + (track!.diskNumber ?? 1).toString());
|
|
} else {
|
|
path = p.join(path!, '%album%');
|
|
}
|
|
}
|
|
//Final path
|
|
path = p.join(path!,
|
|
isSingleton ? settings.singletonFilename : settings.downloadFilename);
|
|
//Playlist track number variable (not accessible in service)
|
|
if (playlistTrackNumber != null) {
|
|
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(*)'] as int?;
|
|
int? albumCount =
|
|
(await db.rawQuery('SELECT COUNT(*) FROM Albums WHERE offline == 1'))[0]
|
|
['COUNT(*)'] as int?;
|
|
int? playlistCount = (await db
|
|
.rawQuery('SELECT COUNT(*) FROM Playlists'))[0]['COUNT(*)'] as int?;
|
|
//Free space
|
|
double diskSpace =
|
|
await DiskSpacePlus.getFreeDiskSpace.then((value) => value ?? 0.0);
|
|
//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)});
|
|
}
|
|
|
|
static Future<String?> getDirectory(String title) =>
|
|
platform.invokeMethod('getDirectory', <String, String>{'title': title});
|
|
}
|
|
|
|
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 }
|