uploadFile static method

Implementation

@Deprecated('请使用 uploadPhoto 方法')
static Future<UploadResponse> uploadFile(File file) async {
  print('📤 开始上传文件: ${file.path}');
  print('🔗 上传地址: $uploadUrl');

  try {
    // 检查文件是否存在
    if (!await file.exists()) {
      throw UploadException('文件不存在', code: 'FILE_NOT_FOUND');
    }

    // 获取文件大小
    final fileSize = await file.length();
    print('📦 文件大小: ${(fileSize / 1024).toStringAsFixed(2)} KB');

    var request = http.MultipartRequest('POST', Uri.parse(uploadUrl));

    // 添加请求头
    request.headers.addAll({
      'User-Agent': 'FlightBookingApp/1.0.0',
      'Accept': 'application/json',
      'Connection': 'keep-alive',
    });

    // 获取文件扩展名并确定 MIME type
    final extension = file.path.toLowerCase().split('.').last;
    final mimeType = _getMimeType(extension);
    print('📄 文件扩展名: $extension, MIME类型: $mimeType');

    // 添加文件（显式指定 contentType）
    request.files.add(
      await http.MultipartFile.fromPath(
        'file',
        file.path,
        contentType: MediaType.parse(mimeType),
      ),
    );

    // 发送请求（带超时）
    final streamedResponse = await request.send().timeout(
      Duration(seconds: EnvironmentConfig.apiTimeout),
      onTimeout: () {
        throw UploadException(
          '上传超时，请检查网络连接后重试',
          code: 'TIMEOUT',
        );
      },
    );

    final response = await http.Response.fromStream(streamedResponse);

    print('✅ 收到响应: ${response.statusCode}');

    // 处理成功响应
    if (response.statusCode == 200) {
      try {
        final jsonData = json.decode(response.body);
        if (jsonData['success'] == true && jsonData['data'] != null) {
          print('✅ 上传成功: ${jsonData['data']['publicUrl']}');
          return UploadResponse.fromJson(jsonData['data']);
        } else {
          final errorMsg = jsonData['message'] ?? '上传失败';
          throw UploadException(errorMsg, code: 'SERVER_ERROR');
        }
      } catch (e) {
        if (e is UploadException) rethrow;
        throw UploadException(
          '服务器响应格式错误',
          code: 'INVALID_RESPONSE',
          details: e.toString(),
        );
      }
    }

    // 处理各种错误状态码
    throw _handleErrorResponse(response);

  } on SocketException {
    throw UploadException(
      '网络连接失败，请检查网络设置',
      code: 'NETWORK_ERROR',
    );
  } on HttpException catch (e) {
    throw UploadException(
      '网络请求异常：${e.message}',
      code: 'HTTP_ERROR',
    );
  } on UploadException {
    rethrow;
  } catch (e) {
    print('❌ 上传异常: $e');
    throw UploadException(
      '上传失败：$e',
      code: 'UNKNOWN_ERROR',
      details: e.toString(),
    );
  }
}