import 'package:cookie_jar/cookie_jar.dart';
import 'package:dio/dio.dart';
import 'package:dio_cookie_manager/dio_cookie_manager.dart';

import '../../core/exceptions.dart';

PersistCookieJar buildCookieJar(String cookiesPath) =>
    PersistCookieJar(storage: FileStorage('$cookiesPath/.cookies/'));

Dio buildDio(String baseUrl, PersistCookieJar cookieJar) {

  final dio = Dio(BaseOptions(
    baseUrl: baseUrl,
    connectTimeout: const Duration(seconds: 10),
    receiveTimeout: const Duration(seconds: 30),
    headers: {'Content-Type': 'application/json'},
  ));

  dio.interceptors.add(CookieManager(cookieJar));
  dio.interceptors.add(_ErrorInterceptor());

  return dio;
}

class _ErrorInterceptor extends Interceptor {
  @override
  void onError(DioException err, ErrorInterceptorHandler handler) {
    if (err.response?.statusCode == 401) {
      handler.reject(DioException(
        requestOptions: err.requestOptions,
        error: const AuthException('Session expired. Please log in again.'),
        type: err.type,
        response: err.response,
      ));
      return;
    }
    if (err.type == DioExceptionType.connectionTimeout ||
        err.type == DioExceptionType.connectionError) {
      handler.reject(DioException(
        requestOptions: err.requestOptions,
        error: const NetworkException('Cannot reach server. Check your connection.'),
        type: err.type,
        response: err.response,
      ));
      return;
    }
    handler.next(err);
  }
}

AppException dioToApp(DioException e) {
  if (e.error is AppException) return e.error as AppException;
  final status = e.response?.statusCode;
  if (status == 401) return const AuthException('Not authenticated.');
  if (status == 404) return const NotFoundException('Resource not found.');
  return NetworkException(e.message ?? 'Unknown network error.');
}