freezer/lib/ui/menu.dart

import 'dart:async';

import 'package:freezer/main.dart';
import 'package:wakelock_plus/wakelock_plus.dart';
import 'package:flutter/material.dart';
import 'package:freezer/api/cache.dart';
import 'package:freezer/api/deezer.dart';
import 'package:freezer/api/download.dart';
import 'package:freezer/api/player/audio_handler.dart';
import 'package:freezer/ui/details_screens.dart';
import 'package:freezer/ui/error.dart';
import 'package:freezer/translations.i18n.dart';
import 'package:freezer/api/definitions.dart';
import 'package:freezer/ui/cached_image.dart';
import 'package:numberpicker/numberpicker.dart';
import 'package:share_plus/share_plus.dart';
import 'package:url_launcher/url_launcher.dart';

class SliverTrackPersistentHeader extends SliverPersistentHeaderDelegate {
  final Track track;
  final double extent;
  const SliverTrackPersistentHeader(this.track, {required this.extent});

  @override
  bool shouldRebuild(oldDelegate) => false;

  @override
  double get maxExtent => extent;
  @override
  double get minExtent => extent;

  @override
  Widget build(
      BuildContext context, double shrinkOffset, bool overlapsContent) {
    return DecoratedBox(
      decoration: BoxDecoration(color: Theme.of(context).cardColor),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          const SizedBox(height: 16.0),
          Row(
            mainAxisSize: MainAxisSize.max,
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: <Widget>[
              Semantics(
                label: "Album art".i18n,
                image: true,
                child: CachedImage(
                  url: track.albumArt!.full,
                  height: 128,
                  width: 128,
                ),
              ),
              SizedBox(
                width: 240.0,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    Text(
                      track.title!,
                      maxLines: 1,
                      textAlign: TextAlign.center,
                      overflow: TextOverflow.ellipsis,
                      style: const TextStyle(
                          fontSize: 22.0, fontWeight: FontWeight.bold),
                    ),
                    Text(
                      track.artistString,
                      textAlign: TextAlign.center,
                      overflow: TextOverflow.ellipsis,
                      maxLines: 1,
                      style: const TextStyle(fontSize: 20.0),
                    ),
                    const SizedBox(height: 8.0),
                    Text(
                      track.album!.title!,
                      textAlign: TextAlign.center,
                      overflow: TextOverflow.ellipsis,
                      maxLines: 1,
                    ),
                    Text(track.durationString)
                  ],
                ),
              ),
            ],
          ),
          const SizedBox(height: 16.0),
        ],
      ),
    );
  }
}

class MenuSheetOption {
  final Widget label;
  final Widget? icon;
  final VoidCallback onTap;

  const MenuSheetOption(
    this.label, {
    required this.onTap,
    this.icon,
  });
}

class MenuSheet {
  final BuildContext context;
  final Function? navigateCallback;

  MenuSheet(this.context, {this.navigateCallback});

  void _showContextMenu(List<MenuSheetOption> options,
      {required TapUpDetails details}) {
    final overlay = Overlay.of(context).context.findRenderObject() as RenderBox;
    final actualPosition = overlay.globalToLocal(details.globalPosition);
    showMenu(
        clipBehavior: Clip.antiAlias,
        elevation: 4.0,
        context: context,
        constraints: const BoxConstraints(maxWidth: 300.0),
        position:
            RelativeRect.fromSize(actualPosition & Size.zero, overlay.size),
        shape: const RoundedRectangleBorder(
            borderRadius: BorderRadius.all(Radius.circular(28.0))),
        items: options
            .map((option) => PopupMenuItem(
                onTap: option.onTap,
                child: option.icon == null
                    ? option.label
                    : Row(mainAxisSize: MainAxisSize.min, children: [
                        option.icon!,
                        const SizedBox(width: 8.0),
                        Flexible(child: option.label),
                      ])))
            .toList(growable: false));
  }

  //===================
  // DEFAULT
  //===================

  void show(List<MenuSheetOption> options, {TapUpDetails? details}) {
    if (details != null) {
      _showContextMenu(options, details: details);
      return;
    }

    showModalBottomSheet(
        isScrollControlled: false, // true,
        context: context,
        builder: (BuildContext context) {
          return SafeArea(
            child: ConstrainedBox(
              constraints: BoxConstraints(
                maxHeight: (MediaQuery.of(context).orientation ==
                        Orientation.landscape)
                    ? 220
                    : 350,
              ),
              child: SingleChildScrollView(
                child: Column(
                    children: options
                        .map((option) => ListTile(
                              title: option.label,
                              leading: option.icon,
                              onTap: () {
                                option.onTap.call();
                                Navigator.pop(context);
                              },
                            ))
                        .toList(growable: false)),
              ),
            ),
          );
        });
  }

  //===================
  // TRACK
  //===================

  void showWithTrack(Track track, List<MenuSheetOption> options,
      {TapUpDetails? details}) {
    if (details != null) {
      _showContextMenu(options, details: details);
      return;
    }

    showModalBottomSheet(
        backgroundColor: Colors.transparent,
        context: context,
        isScrollControlled: true,
        enableDrag: false,
        showDragHandle: false,
        elevation: 0.0,
        builder: (BuildContext context) {
          return DraggableScrollableSheet(
            initialChildSize: 0.5,
            minChildSize: 0.45,
            maxChildSize: 0.75,
            builder: (context, scrollController) => SafeArea(
              child: Material(
                type: MaterialType.card,
                clipBehavior: Clip.antiAlias,
                borderRadius:
                    const BorderRadius.vertical(top: Radius.circular(20.0)),
                child: CustomScrollView(
                  controller: scrollController,
                  slivers: [
                    SliverPersistentHeader(
                        pinned: true,
                        delegate: SliverTrackPersistentHeader(track,
                            extent: 128.0 + 16.0 + 16.0)),
                    SliverList(
                        delegate: SliverChildListDelegate.fixed(options
                            .map((option) => ListTile(
                                  title: option.label,
                                  leading: option.icon,
                                  onTap: () {
                                    option.onTap.call();
                                    Navigator.pop(context);
                                  },
                                ))
                            .toList(growable: false))),
                  ],
                ),
              ),
            ),
          );
        });
  }

  //Default track options
  void defaultTrackMenu(
    Track track, {
    List<MenuSheetOption> options = const [],
    Function? onRemove,
    TapUpDetails? details,
  }) {
    showWithTrack(
        track,
        <MenuSheetOption>[
          addToQueueNext(track),
          addToQueue(track),
          (cache.checkTrackFavorite(track))
              ? removeFavoriteTrack(track, onUpdate: onRemove)
              : addTrackFavorite(track),
          addToPlaylist(track),
          downloadTrack(track),
          offlineTrack(track),
          shareTile('track', track.id),
          playMix(track),
          showAlbum(track.album!),
          ...List.generate(
              track.artists!.length, (i) => showArtist(track.artists![i])),
          ...options
        ],
        details: details);
  }

  //===================
  // TRACK OPTIONS
  //===================

  MenuSheetOption addToQueueNext(Track t) =>
      MenuSheetOption(Text('Play next'.i18n),
          icon: const Icon(Icons.playlist_play), onTap: () async {
        //-1 = next
        await audioHandler.insertQueueItem(-1, await t.toMediaItem());
      });

  MenuSheetOption addToQueue(Track t) =>
      MenuSheetOption(Text('Add to queue'.i18n),
          icon: const Icon(Icons.playlist_add), onTap: () async {
        await audioHandler.addQueueItem(await t.toMediaItem());
      });

  MenuSheetOption addTrackFavorite(Track t) =>
      MenuSheetOption(Text('Add track to favorites'.i18n),
          icon: const Icon(Icons.favorite), onTap: () async {
        await deezerAPI.addFavoriteTrack(t.id);
        //Make track offline, if favorites are offline
        Playlist p = Playlist(id: deezerAPI.favoritesPlaylistId!);
        if (await downloadManager.checkOffline(playlist: p)) {
          downloadManager.addOfflinePlaylist(p);
        }
        ScaffoldMessenger.of(context).snack('Added to library'.i18n);
        //Add to cache
        cache.libraryTracks.add(t.id);
      });

  MenuSheetOption downloadTrack(Track t) => MenuSheetOption(
        Text('Download'.i18n),
        icon: const Icon(Icons.file_download),
        onTap: () async {
          if (await downloadManager.addOfflineTrack(t,
                  private: false, context: context, isSingleton: true) !=
              false) showDownloadStartedToast();
        },
      );

  MenuSheetOption addToPlaylist(Track t) => MenuSheetOption(
        Text('Add to playlist'.i18n),
        icon: const Icon(Icons.playlist_add),
        onTap: () async {
          //Show dialog to pick playlist
          await showDialog(
              context: context,
              builder: (context) {
                return SelectPlaylistDialog(
                    track: t,
                    callback: (Playlist p) async {
                      await deezerAPI.addToPlaylist(t.id, p.id);
                      //Update the playlist if offline
                      if (await downloadManager.checkOffline(playlist: p)) {
                        downloadManager.addOfflinePlaylist(p);
                      }
                      ScaffoldMessenger.of(context)
                          .snack("${"Track added to".i18n} ${p.title}");
                    });
              });
        },
      );

  MenuSheetOption removeFromPlaylist(Track t, Playlist? p) => MenuSheetOption(
        Text('Remove from playlist'.i18n),
        icon: const Icon(Icons.delete),
        onTap: () async {
          await deezerAPI.removeFromPlaylist(t.id, p!.id);
          ScaffoldMessenger.of(context)
              .snack('${'Track removed from'.i18n} ${p.title}');
        },
      );

  MenuSheetOption removeFavoriteTrack(Track t, {onUpdate}) => MenuSheetOption(
        Text('Remove favorite'.i18n),
        icon: const Icon(Icons.delete),
        onTap: () async {
          await deezerAPI.removeFavorite(t.id);
          //Check if favorites playlist is offline, update it
          Playlist p = Playlist(id: deezerAPI.favoritesPlaylistId!);
          if (await downloadManager.checkOffline(playlist: p)) {
            await downloadManager.addOfflinePlaylist(p);
          }
          //Remove from cache
          cache.libraryTracks.removeWhere((i) => i == t.id);
          ScaffoldMessenger.of(context)
              .snack('Track removed from library'.i18n);
          if (onUpdate != null) onUpdate();
        },
      );

  //Redirect to artist page (ie from track)
  MenuSheetOption showArtist(Artist a) => MenuSheetOption(
        Text(
          '${'Go to'.i18n} ${a.name}',
          maxLines: 1,
          overflow: TextOverflow.ellipsis,
        ),
        icon: const Icon(Icons.recent_actors),
        onTap: () {
          navigatorKey.currentState!
              .push(MaterialPageRoute(builder: (context) => ArtistDetails(a)));

          if (navigateCallback != null) {
            navigateCallback!();
          }
        },
      );

  MenuSheetOption showAlbum(Album a) => MenuSheetOption(
        Text(
          '${'Go to'.i18n} ${a.title}',
          maxLines: 1,
          overflow: TextOverflow.ellipsis,
        ),
        icon: const Icon(Icons.album),
        onTap: () {
          navigatorKey.currentState!
              .push(MaterialPageRoute(builder: (context) => AlbumDetails(a)));

          if (navigateCallback != null) {
            navigateCallback!();
          }
        },
      );

  MenuSheetOption playMix(Track track) => MenuSheetOption(
        Text('Play mix'.i18n),
        icon: const Icon(Icons.online_prediction),
        onTap: () async {
          playerHelper.playMix(track.id, track.title!);
        },
      );

  MenuSheetOption offlineTrack(Track track) => MenuSheetOption(
          FutureBuilder(
              future: downloadManager.checkOffline(track: track),
              builder: (context, snapshot) {
                bool isOffline = snapshot.data ?? track.offline ?? false;
                return Text(isOffline ? 'Remove offline'.i18n : 'Offline'.i18n);
              }),
          icon: const Icon(Icons.offline_pin), onTap: () async {
        if (await downloadManager.checkOffline(track: track)) {
          await downloadManager.removeOfflineTracks([track]);
          ScaffoldMessenger.of(context)
              .snack("Track removed from offline!".i18n);
        } else {
          await downloadManager.addOfflineTrack(track,
              private: true, context: context);
        }
      });

  //===================
  // ALBUM
  //===================

  //Default album options
  void defaultAlbumMenu(Album album,
      {List<MenuSheetOption> options = const [],
      Function? onRemove,
      TapUpDetails? details}) {
    show([
      album.library!
          ? removeAlbum(album, onRemove: onRemove)
          : libraryAlbum(album),
      downloadAlbum(album),
      offlineAlbum(album),
      shareTile('album', album.id),
      ...options
    ]);
  }

  //===================
  // ALBUM OPTIONS
  //===================

  MenuSheetOption downloadAlbum(Album a) =>
      MenuSheetOption(Text('Download'.i18n),
          icon: const Icon(Icons.file_download), onTap: () async {
        if (await downloadManager.addOfflineAlbum(a,
                private: false, context: context) !=
            false) showDownloadStartedToast();
      });

  MenuSheetOption offlineAlbum(Album a) => MenuSheetOption(
        Text('Make offline'.i18n),
        icon: const Icon(Icons.offline_pin),
        onTap: () async {
          await deezerAPI.addFavoriteAlbum(a.id);
          await downloadManager.addOfflineAlbum(a, private: true);

          showDownloadStartedToast();
        },
      );

  MenuSheetOption libraryAlbum(Album a) => MenuSheetOption(
        Text('Add to library'.i18n),
        icon: const Icon(Icons.library_music),
        onTap: () async {
          await deezerAPI.addFavoriteAlbum(a.id);
          ScaffoldMessenger.of(context).snack('Added to library'.i18n);
        },
      );

  //Remove album from favorites
  MenuSheetOption removeAlbum(Album a, {Function? onRemove}) => MenuSheetOption(
        Text('Remove album'.i18n),
        icon: const Icon(Icons.delete),
        onTap: () async {
          await deezerAPI.removeAlbum(a.id);
          await downloadManager.removeOfflineAlbum(a.id);
          ScaffoldMessenger.of(context).snack('Album removed'.i18n);
          if (onRemove != null) onRemove();
        },
      );

  //===================
  // ARTIST
  //===================

  void defaultArtistMenu(Artist artist,
      {List<MenuSheetOption> options = const [],
      Function? onRemove,
      TapUpDetails? details}) {
    show(details: details, [
      artist.library!
          ? removeArtist(artist, onRemove: onRemove)
          : favoriteArtist(artist),
      shareTile('artist', artist.id),
      ...options
    ]);
  }

  //===================
  // ARTIST OPTIONS
  //===================

  MenuSheetOption removeArtist(Artist a, {Function? onRemove}) =>
      MenuSheetOption(
        Text('Remove from favorites'.i18n),
        icon: const Icon(Icons.delete),
        onTap: () async {
          await deezerAPI.removeArtist(a.id);
          ScaffoldMessenger.of(context)
              .snack('Artist removed from library'.i18n);
          if (onRemove != null) onRemove();
        },
      );

  MenuSheetOption favoriteArtist(Artist a) => MenuSheetOption(
        Text('Add to favorites'.i18n),
        icon: const Icon(Icons.favorite),
        onTap: () async {
          await deezerAPI.addFavoriteArtist(a.id);
          ScaffoldMessenger.of(context).snack('Added to library'.i18n);
        },
      );

  //===================
  // PLAYLIST
  //===================

  void defaultPlaylistMenu(Playlist playlist,
      {List<MenuSheetOption> options = const [],
      Function? onRemove,
      Function? onUpdate,
      TapUpDetails? details}) {
    show(details: details, [
      if (playlist.library != null)
        playlist.library!
            ? removePlaylistLibrary(playlist, onRemove: onRemove)
            : addPlaylistLibrary(playlist),
      addPlaylistOffline(playlist),
      downloadPlaylist(playlist),
      shareTile('playlist', playlist.id),
      if (playlist.user!.id == deezerAPI.userId)
        editPlaylist(playlist, onUpdate: onUpdate),
      ...options
    ]);
  }

  //===================
  // PLAYLIST OPTIONS
  //===================

  MenuSheetOption removePlaylistLibrary(Playlist p, {Function? onRemove}) =>
      MenuSheetOption(
        Text('Remove from library'.i18n),
        icon: const Icon(Icons.delete),
        onTap: () async {
          if (p.user!.id!.trim() == deezerAPI.userId) {
            //Delete playlist if own
            await deezerAPI.deletePlaylist(p.id);
          } else {
            //Just remove from library
            await deezerAPI.removePlaylist(p.id);
          }
          downloadManager.removeOfflinePlaylist(p.id);
          if (onRemove != null) onRemove();
        },
      );

  MenuSheetOption addPlaylistLibrary(Playlist p) => MenuSheetOption(
        Text('Add playlist to library'.i18n),
        icon: const Icon(Icons.favorite),
        onTap: () async {
          await deezerAPI.addPlaylist(p.id);
          ScaffoldMessenger.of(context).snack('Added playlist to library'.i18n);
        },
      );

  MenuSheetOption addPlaylistOffline(Playlist p) => MenuSheetOption(
        Text('Make playlist offline'.i18n),
        icon: const Icon(Icons.offline_pin),
        onTap: () async {
          //Add to library
          await deezerAPI.addPlaylist(p.id);
          downloadManager.addOfflinePlaylist(p, private: true);

          showDownloadStartedToast();
        },
      );

  MenuSheetOption downloadPlaylist(Playlist p) => MenuSheetOption(
        Text('Download playlist'.i18n),
        icon: const Icon(Icons.file_download),
        onTap: () async {
          if (await downloadManager.addOfflinePlaylist(p,
                  private: false, context: context) !=
              false) showDownloadStartedToast();
        },
      );

  MenuSheetOption editPlaylist(Playlist p, {Function? onUpdate}) =>
      MenuSheetOption(
        Text('Edit playlist'.i18n),
        icon: const Icon(Icons.edit),
        onTap: () async {
          await showDialog(
              context: context,
              builder: (context) => CreatePlaylistDialog(playlist: p));

          if (onUpdate != null) onUpdate();
        },
      );

  //===================
  // SHOW/EPISODE
  //===================

  defaultShowEpisodeMenu(Show s, ShowEpisode e,
      {List<MenuSheetOption> options = const [], TapUpDetails? details}) {
    show(details: details, [
      shareTile('episode', e.id),
      shareShow(s.id),
      downloadExternalEpisode(e),
      ...options
    ]);
  }

  MenuSheetOption shareShow(String? id) => MenuSheetOption(
        Text('Share show'.i18n),
        icon: const Icon(Icons.share),
        onTap: () async {
          Share.share('https://deezer.com/show/$id');
        },
      );

  //Open direct download link in browser
  MenuSheetOption downloadExternalEpisode(ShowEpisode e) => MenuSheetOption(
        Text('Download externally'.i18n),
        icon: const Icon(Icons.file_download),
        onTap: () async {
          launchUrl(Uri.parse(e.url!));
        },
      );

  //===================
  // OTHER
  //===================

  showDownloadStartedToast() {
    ScaffoldMessenger.of(context).snack('Downloads added!'.i18n);
  }

  //Create playlist
  Future createPlaylist() async {
    await showDialog(
        context: context,
        builder: (BuildContext context) {
          return const CreatePlaylistDialog();
        });
  }

  MenuSheetOption shareTile(String type, String? id) => MenuSheetOption(
        Text('Share'.i18n),
        icon: const Icon(Icons.share),
        onTap: () async {
          Share.share('https://deezer.com/$type/$id');
        },
      );

  MenuSheetOption sleepTimer() => MenuSheetOption(
        Text('Sleep timer'.i18n),
        icon: const Icon(Icons.access_time),
        onTap: () async {
          showDialog(
              context: context,
              builder: (context) {
                return const SleepTimerDialog();
              });
        },
      );

  MenuSheetOption wakelock() => MenuSheetOption(
        Text('Keep the screen on'.i18n),
        icon: const Icon(Icons.screen_lock_portrait),
        onTap: () async {
          //Enable
          if (!cache.wakelock) {
            WakelockPlus.enable();
            ScaffoldMessenger.of(context).snack('Wakelock enabled!'.i18n);
            cache.wakelock = true;
            return;
          }
          //Disable
          WakelockPlus.disable();
          ScaffoldMessenger.of(context).snack('Wakelock disabled!'.i18n);
          cache.wakelock = false;
        },
      );
}

class SleepTimerDialog extends StatefulWidget {
  const SleepTimerDialog({super.key});

  @override
  State<SleepTimerDialog> createState() => _SleepTimerDialogState();
}

class _SleepTimerDialogState extends State<SleepTimerDialog> {
  int hours = 0;
  int minutes = 30;

  String _endTime() {
    return '${cache.sleepTimerTime!.hour.toString().padLeft(2, '0')}:${cache.sleepTimerTime!.minute.toString().padLeft(2, '0')}';
  }

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      title: Text('Sleep timer'.i18n),
      content: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Text('Hours:'.i18n),
                  NumberPicker(
                    value: hours,
                    minValue: 0,
                    maxValue: 69,
                    onChanged: (v) => setState(() => hours = v),
                  ),
                ],
              ),
              Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Text('Minutes:'.i18n),
                  NumberPicker(
                    value: minutes,
                    minValue: 0,
                    maxValue: 60,
                    onChanged: (v) => setState(() => minutes = v),
                  ),
                ],
              ),
            ],
          ),
          Container(height: 4.0),
          if (cache.sleepTimerTime != null)
            Text(
              '${'Current timer ends at'.i18n}: ${_endTime()}',
              textAlign: TextAlign.center,
            )
        ],
      ),
      actions: [
        TextButton(
          child: Text('Dismiss'.i18n),
          onPressed: () {
            Navigator.of(context).pop();
          },
        ),
        if (cache.sleepTimer != null)
          TextButton(
            child: Text('Cancel current timer'.i18n),
            onPressed: () {
              cache.sleepTimer!.cancel();
              cache.sleepTimer = null;
              cache.sleepTimerTime = null;
              Navigator.of(context).pop();
            },
          ),
        TextButton(
          child: Text('Save'.i18n),
          onPressed: () {
            Duration duration = Duration(hours: hours, minutes: minutes);
            if (cache.sleepTimer != null) {
              cache.sleepTimer!.cancel();
            }
            //Create timer
            cache.sleepTimer =
                Stream.fromFuture(Future.delayed(duration)).listen((_) {
              audioHandler.pause();
              cache.sleepTimer!.cancel();
              cache.sleepTimerTime = null;
              cache.sleepTimer = null;
            });
            cache.sleepTimerTime = DateTime.now().add(duration);
            Navigator.of(context).pop();
          },
        ),
      ],
    );
  }
}

class SelectPlaylistDialog extends StatefulWidget {
  final Track? track;
  final Function? callback;
  const SelectPlaylistDialog({this.track, this.callback, Key? key})
      : super(key: key);

  @override
  State<SelectPlaylistDialog> createState() => _SelectPlaylistDialogState();
}

class _SelectPlaylistDialogState extends State<SelectPlaylistDialog> {
  bool createNew = false;

  @override
  Widget build(BuildContext context) {
    //Create new playlist
    if (createNew) {
      if (widget.track == null) {
        return const CreatePlaylistDialog();
      }
      return CreatePlaylistDialog(tracks: [widget.track]);
    }

    return AlertDialog(
      title: Text('Select playlist'.i18n),
      content: FutureBuilder(
        future: deezerAPI.getPlaylists(),
        builder: (context, snapshot) {
          if (snapshot.hasError) {
            const SizedBox(
              height: 100,
              child: ErrorScreen(),
            );
          }
          if (snapshot.connectionState != ConnectionState.done) {
            return const SizedBox(
              height: 100,
              child: Center(
                child: CircularProgressIndicator(),
              ),
            );
          }

          List<Playlist> playlists = snapshot.data!;
          return SingleChildScrollView(
            child: Column(mainAxisSize: MainAxisSize.min, children: [
              ...List.generate(
                  playlists.length,
                  (i) => ListTile(
                        title: Text(playlists[i].title!),
                        leading: CachedImage(
                          url: playlists[i].image!.thumb,
                        ),
                        onTap: () {
                          if (widget.callback != null) {
                            widget.callback!(playlists[i]);
                          }
                          Navigator.of(context).pop();
                        },
                      )),
              ListTile(
                title: Text('Create new playlist'.i18n),
                leading: const Icon(Icons.add),
                onTap: () async {
                  setState(() {
                    createNew = true;
                  });
                },
              )
            ]),
          );
        },
      ),
    );
  }
}

class CreatePlaylistDialog extends StatefulWidget {
  final List<Track?>? tracks;
  //If playlist not null, update
  final Playlist? playlist;
  const CreatePlaylistDialog({this.tracks, this.playlist, Key? key})
      : super(key: key);

  @override
  State<CreatePlaylistDialog> createState() => _CreatePlaylistDialogState();
}

class _CreatePlaylistDialogState extends State<CreatePlaylistDialog> {
  int? _playlistType = 1;
  String _title = '';
  String _description = '';
  TextEditingController? _titleController;
  TextEditingController? _descController;

  //Create or edit mode
  bool get edit => widget.playlist != null;

  @override
  void initState() {
    //Edit playlist mode
    if (edit) {
      _titleController = TextEditingController(text: widget.playlist!.title);
      _descController =
          TextEditingController(text: widget.playlist!.description);
    }

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      title: Text(edit ? 'Edit playlist'.i18n : 'Create playlist'.i18n),
      content: Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          TextField(
            decoration: InputDecoration(labelText: 'Title'.i18n),
            controller: _titleController ?? TextEditingController(),
            onChanged: (String s) => _title = s,
          ),
          TextField(
            onChanged: (String s) => _description = s,
            controller: _descController ?? TextEditingController(),
            decoration: InputDecoration(labelText: 'Description'.i18n),
          ),
          Container(
            height: 4.0,
          ),
          DropdownButton<int>(
            value: _playlistType,
            onChanged: (int? v) {
              setState(() => _playlistType = v);
            },
            items: [
              DropdownMenuItem<int>(
                value: 1,
                child: Text('Private'.i18n),
              ),
              DropdownMenuItem<int>(
                value: 2,
                child: Text('Collaborative'.i18n),
              ),
            ],
          ),
        ],
      ),
      actions: <Widget>[
        TextButton(
          child: Text('Cancel'.i18n),
          onPressed: () => Navigator.of(context).pop(),
        ),
        TextButton(
          child: Text(edit ? 'Update'.i18n : 'Create'.i18n),
          onPressed: () async {
            if (edit) {
              //Update
              await deezerAPI.updatePlaylist(widget.playlist!.id,
                  _titleController!.value.text, _descController!.value.text,
                  status: _playlistType);
              ScaffoldMessenger.of(context).snack('Playlist updated!'.i18n);
            } else {
              List<String> tracks = [];
              if (widget.tracks != null) {
                tracks = widget.tracks!.map<String>((t) => t!.id).toList();
              }
              await deezerAPI.createPlaylist(_title,
                  status: _playlistType,
                  description: _description,
                  trackIds: tracks);
              ScaffoldMessenger.of(context).snack('Playlist created!'.i18n);
            }
            Navigator.of(context).pop();
          },
        )
      ],
    );
  }
}