import 'dart:io';
import 'package:crypto/crypto.dart';
import 'package:file_picker/file_picker.dart';
import 'package:food_hub_app/config/app_config.dart';

import 'package:minio/io.dart';
import 'package:minio/minio.dart';

class MinIOHelper {
  static final MinIOHelper _instance = MinIOHelper._internal();

  factory MinIOHelper() => _instance;

  MinIOHelper._internal() {
    _minio = Minio(
      endPoint: AppConfig.rustfsIp,
      port: 9100,
      accessKey: "tHSFfcDW8qpCzKa2Xg6Y",
      secretKey: "oq79EeYJ4jdczRp2IHUMCnbKtSw58NgDlG3sOkvX",
      useSSL: false,
    );
  }

  late Minio _minio;

  Future<String> uploadFile({
    required PlatformFile file,
    Function(double)? onProgress,
  }) async {
    try {
      String hashName = await _generateMD5HashName(file.path!);
      String fileName = '$hashName${_getFileExtension(file.name)}';

      await _minio.fPutObject(AppConfig.bucketName, fileName, file.path!);
      return fileName;
    } catch (e) {
      throw Exception('文件上传失败: $e');
    }
  }

  String _getFileExtension(String fileName) {
    if (fileName.contains('.')) {
      return '.${fileName.split('.').last.toLowerCase()}';
    }
    return '';
  }

  Future<String> _generateMD5HashName(String filePath) async {
    final file = File(filePath);
    final bytes = await file.readAsBytes();
    final hash = md5.convert(bytes);
    return hash.toString();
  }
}