// lib/utils/artwork_helper.dart
import 'dart:io';
import 'dart:typed_data';
import 'package:path_provider/path_provider.dart';

class ArtworkHelper {
  static const String _artworkDir = 'artworks';

  /// 保存封面图到本地
  static Future<String?> saveArtwork(Uint8List data, String songKey) async {
    try {
      final dir = await getApplicationDocumentsDirectory();
      final artworkDir = Directory('${dir.path}/$_artworkDir');
      if (!await artworkDir.exists()) {
        await artworkDir.create(recursive: true);
      }

      final path = '${artworkDir.path}/$songKey.jpg';
      final file = File(path);
      await file.writeAsBytes(data);
      return path;
    } catch (e) {
      return null;
    }
  }

  /// 获取封面图文件
  static Future<File?> getArtwork(String songKey) async {
    try {
      final dir = await getApplicationDocumentsDirectory();
      final path = '${dir.path}/$_artworkDir/$songKey.jpg';
      final file = File(path);
      if (await file.exists()) {
        return file;
      }
      return null;
    } catch (e) {
      return null;
    }
  }

  /// 删除封面图
  static Future<void> deleteArtwork(String songKey) async {
    try {
      final dir = await getApplicationDocumentsDirectory();
      final path = '${dir.path}/$_artworkDir/$songKey.jpg';
      final file = File(path);
      if (await file.exists()) {
        await file.delete();
      }
    } catch (e) {
      // ignore
    }
  }
}