Melo/lib/shared/favorite_button.dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../library/database.dart';
import '../library/playlist_service.dart';
import 'theme.dart';

/// Herz-Toggle: ausgefüllt = favorisiert, umrandet = nicht favorisiert.
class FavoriteButton extends StatelessWidget {
  const FavoriteButton({super.key, required this.songId});
  final String songId;

  @override
  Widget build(BuildContext context) {
    final db = context.read<MeloDb>();
    final service = context.read<PlaylistService>();
    return StreamBuilder<bool>(
      stream: db.watchIsFavorite(songId),
      builder: (context, snapshot) {
        final isFavorite = snapshot.data ?? false;
        return IconButton(
          tooltip: isFavorite ? 'Favorit entfernen' : 'Zu Favoriten hinzufügen',
          icon: Icon(
            isFavorite ? Icons.favorite : Icons.favorite_border,
            color: isFavorite ? MeloTheme.red : MeloTheme.text2,
          ),
          onPressed: () => service.toggleFavorite(songId),
        );
      },
    );
  }
}