spotube/lib/pages/library/user_playlists.dart

import 'package:auto_route/auto_route.dart';
import 'package:collection/collection.dart';
import 'package:flutter/material.dart' as material;
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:fuzzywuzzy/fuzzywuzzy.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:shadcn_flutter/shadcn_flutter.dart' hide Image;
import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
import 'package:spotify/spotify.dart';
import 'package:spotube/collections/routes.gr.dart';
import 'package:spotube/collections/spotube_icons.dart';
import 'package:spotube/components/fallbacks/anonymous_fallback.dart';
import 'package:spotube/components/inter_scrollbar/inter_scrollbar.dart';
import 'package:spotube/components/playbutton_view/playbutton_view.dart';
import 'package:spotube/extensions/context.dart';
import 'package:spotube/modules/playlist/playlist_card.dart';
import 'package:spotube/modules/playlist/playlist_create_dialog.dart';
import 'package:spotube/provider/authentication/authentication.dart';
import 'package:spotube/provider/spotify/spotify.dart';

@RoutePage()
class UserPlaylistsPage extends HookConsumerWidget {
  static const name = 'user_playlists';
  const UserPlaylistsPage({super.key});

  @override
  Widget build(BuildContext context, ref) {
    final searchText = useState('');

    final auth = ref.watch(authenticationProvider);

    final playlistsQuery = ref.watch(favoritePlaylistsProvider);
    final playlistsQueryNotifier =
        ref.watch(favoritePlaylistsProvider.notifier);

    final likedTracksPlaylist = useMemoized(
      () => PlaylistSimple()
        ..name = context.l10n.liked_tracks
        ..description = context.l10n.liked_tracks_description
        ..type = "playlist"
        ..collaborative = false
        ..public = false
        ..id = "user-liked-tracks"
        ..images = [
          Image()
            ..height = 300
            ..width = 300
            ..url = "assets/liked-tracks.jpg"
        ],
      [context.l10n],
    );

    final playlists = useMemoized(
      () {
        if (searchText.value.isEmpty) {
          return [
            likedTracksPlaylist,
            ...?playlistsQuery.asData?.value.items,
          ];
        }
        return [
          likedTracksPlaylist,
          ...?playlistsQuery.asData?.value.items,
        ]
            .map((e) => (weightedRatio(e.name!, searchText.value), e))
            .sorted((a, b) => b.$1.compareTo(a.$1))
            .where((e) => e.$1 > 50)
            .map((e) => e.$2)
            .toList();
      },
      [playlistsQuery, searchText.value],
    );

    final controller = useScrollController();

    if (auth.asData?.value == null) {
      return const AnonymousFallback();
    }

    return material.RefreshIndicator.adaptive(
      onRefresh: () async {
        ref.invalidate(favoritePlaylistsProvider);
      },
      child: SafeArea(
        bottom: false,
        child: InterScrollbar(
          controller: controller,
          child: CustomScrollView(
            controller: controller,
            slivers: [
              SliverAppBar(
                automaticallyImplyLeading: false,
                floating: true,
                backgroundColor: context.theme.colorScheme.background,
                flexibleSpace: Container(
                  padding: const EdgeInsets.symmetric(horizontal: 8),
                  height: 48,
                  child: TextField(
                    onChanged: (value) => searchText.value = value,
                    placeholder: Text(context.l10n.filter_playlists),
                    leading: const Icon(SpotubeIcons.filter),
                  ),
                ),
              ),
              const SliverGap(10),
              SliverPadding(
                padding: const EdgeInsets.symmetric(horizontal: 8),
                sliver: PlaybuttonView(
                  leading: Expanded(
                    child: Row(
                      children: [
                        const PlaylistCreateDialogButton(),
                        const Gap(10),
                        Button.primary(
                          leading: const Icon(SpotubeIcons.magic),
                          child: Text(context.l10n.generate),
                          onPressed: () {
                            context.navigateTo(const PlaylistGeneratorRoute());
                          },
                        ),
                        const Gap(10),
                      ],
                    ),
                  ),
                  controller: controller,
                  hasMore: playlistsQuery.asData?.value.hasMore == true,
                  isLoading: playlistsQuery.isLoading,
                  onRequestMore: playlistsQueryNotifier.fetchMore,
                  itemCount: playlists.length,
                  gridItemBuilder: (context, index) {
                    return PlaylistCard(playlists[index]);
                  },
                  listItemBuilder: (context, index) {
                    return PlaylistCard.tile(playlists[index]);
                  },
                ),
              ),
              const SliverSafeArea(sliver: SliverGap(10)),
            ],
          ),
        ),
      ),
    );
  }
}