import 'package:flutter/material.dart';
import 'package:flutter_mobx/flutter_mobx.dart';
import 'package:provider/provider.dart';

import '../../domain/entities/album.dart';
import '../state/music_data_store.dart';
import '../widgets/album_art_list_tile.dart';
import 'album_details_page.dart';

class AlbumsPage extends StatefulWidget {
  const AlbumsPage({Key key}) : super(key: key);

  @override
  _AlbumsPageState createState() => _AlbumsPageState();
}

class _AlbumsPageState extends State<AlbumsPage> with AutomaticKeepAliveClientMixin {
  @override
  Widget build(BuildContext context) {
    print('AlbumsPage.build');
    final MusicDataStore store = Provider.of<MusicDataStore>(context);

    super.build(context);
    return Observer(builder: (_) {
      print('AlbumsPage.build -> Observer.builder');
      final List<Album> albums = store.albumStream.value;
      return ListView.separated(
        itemCount: albums.length,
        itemBuilder: (_, int index) {
          final Album album = albums[index];
          return AlbumArtListTile(
            title: album.title,
            subtitle: album.artist,
            albumArtPath: album.albumArtPath,
            onTap: () {
              Navigator.push(
                context,
                MaterialPageRoute<Widget>(
                  builder: (BuildContext context) => AlbumDetailsPage(
                    album: album,
                  ),
                ),
              );
            },
          );
        },
        separatorBuilder: (BuildContext context, int index) => const SizedBox(
          height: 4.0,
        ),
      );
    });
  }

  @override
  bool get wantKeepAlive => true;
}