barcode_scanner/lib/services/dio_service.dart

import 'dart:io';
import 'dart:async';
import 'dart:convert';
import 'package:e_scan/services/token_provider.dart';
import 'package:e_scan/utils/app_constants.dart';
import 'package:e_scan/utils/utils.dart';
import 'package:dio/io.dart';
import 'package:dio/dio.dart';
import 'package:flutter/widgets.dart';

class DioService {
  DioService({bool addAuthorization = false, required this.tokenProvider}) {
    _options = BaseOptions(
      baseUrl: AppConstants.domain,
      connectTimeout: const Duration(seconds: 45),
      receiveTimeout: const Duration(seconds: 45),
      headers: {
        'Content-Type': 'application/json',
        'Accept': 'application/json, text/plain, */*',
        'DNT': '1',
        'Referer': AppConstants.domain,
      },
    );

    _dio = Dio(_options);

    //check bad certificate
    // ignore: deprecated_member_use
    (_dio.httpClientAdapter as DefaultHttpClientAdapter).onHttpClientCreate =
        (HttpClient client) {
          client.badCertificateCallback =
              (X509Certificate cert, String host, int port) => true;
          return client;
        };

    _dio.interceptors.add(
      InterceptorsWrapper(
        onRequest: (options, handler) async {
          final token = await tokenProvider.getToken();
          final sessionId = await tokenProvider.getSessionId();
          if (token != null) {
            options.headers.addAll({"Authorization": "Bearer $token"});
            options.headers.addAll({"Cookie": sessionId});
            debugPrint('Authorization ${options.headers["Authorization"]}');
            final url = Uri.parse(
              "${options.baseUrl}${options.path}",
            ).replace(queryParameters: options.queryParameters).toString();
            debugPrint('REQUEST[${options.method}] => PATH: $url');
            debugPrint(
              'REQUEST[${options.method}] => QUERY PARAMS: ${options.queryParameters}',
            );
          }
          // Do something before request is sent
          return handler.next(options); //continue
          // If you want to resolve the request with some custom data，
          // you can resolve a `Response` object eg: `handler.resolve(response)`.
          // If you want to reject the request with a error message,
          // you can reject a `DioError` object eg: `handler.reject(dioError)`
        },
        onResponse: (response, handler) {
          debugPrint(
            'RESPONSE[${response.statusCode}] => DATA: ${jsonEncode(response.data)}',
          );
          // Do something with response data
          return handler.next(response); // continue
          // If you want to reject the request with a error message,
          // you can reject a `DioError` object eg: `handler.reject(dioError)`
        },
        onError: (DioException e, handler) async {
          debugPrint(
            'ERROR[$e] => PATH: ${e.requestOptions.baseUrl}${e.requestOptions.path}',
          );

          // Handling global errors (401 Unauthorized)
          if (e.response?.statusCode == 401) {
            debugPrint("Token expired !!!");
            await tokenProvider.deleteToken();
            // final refreshToken = await tokenProvider.getRefreshToken();
            // try {
            //   final response = await _dio.post(
            //     AuthEndPoint.refreshToken,
            //     data: {"refresh_token": refreshToken},
            //   );

            //   final newAccessToken = response.data["accessToken"];
            //   final newRefreshToken = response.data["refreshToken"];
            //   await tokenProvider.setToken(newAccessToken);
            //   await tokenProvider.setRefreshToken(newRefreshToken);

            //   // Réessayer la requête initiale avec le nouveau token
            //   e.requestOptions.headers["Authorization"] =
            //       "Bearer $newAccessToken";
            //   final retryResponse = await _dio.fetch(e.requestOptions);
            //   return handler.resolve(retryResponse);
            // } catch (e) {
            //   // Échec du refresh, l'utilisateur doit se reconnecter
            //   await tokenProvider.deleteToken();
            // }
          }

          // Do something with response error
          return handler.next(e); //continue
          // If you want to resolve the request with some custom data，
          // you can resolve a `Response` object eg: `handler.resolve(response)`.
        },
      ),
    );
  }
  late Dio _dio;
  late BaseOptions _options;
  late TokenProvider tokenProvider;

  Future<Response<dynamic>> post({
    required String path,
    Map<String, dynamic>? data,
    bool isFormData = false,
  }) async {
    late Response<dynamic> response;
    if (await checkInternetConnexion()) {
      try {
        response = await _dio.post(
          path,
          data: data != null
              ? (isFormData ? FormData.fromMap(data) : data)
              : null,
        );
      } catch (error) {
        _exception(error);
      }
    } else {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }

    return response;
  }

  Future<Response<dynamic>> get({
    required String path,
    Map<String, dynamic>? queryParameters,
  }) async {
    late Response response;
    if (await checkInternetConnexion()) {
      try {
        response = await _dio.get(path, queryParameters: queryParameters);
      } catch (error) {
        _exception(error);
      }
    } else {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }

    return response;
  }

  Future<Response<dynamic>> patch({
    required String path,
    Map<String, dynamic>? data,
    Options? options,
    bool isFormData = false,
  }) async {
    late Response response;
    if (await checkInternetConnexion()) {
      try {
        response = await _dio.patch(
          path,
          data: data != null
              ? (isFormData ? FormData.fromMap(data) : data)
              : null,
          options: options,
        );
      } catch (error) {
        _exception(error);
      }
    } else {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }

    return response;
  }

  Future<Response<dynamic>> put({
    required String path,
    Map<String, dynamic>? data,
    Options? options,
    bool isFormData = false,
  }) async {
    late Response response;
    if (await checkInternetConnexion()) {
      try {
        response = await _dio.put(
          path,
          data: data != null
              ? (isFormData ? FormData.fromMap(data) : data)
              : null,
          options: options,
        );
      } catch (error) {
        _exception(error);
      }
    } else {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }

    return response;
  }

  Future<Response<dynamic>> delete({
    required String path,
    Map<String, dynamic>? queryParameters,
    Options? options,
    bool isFormData = false,
  }) async {
    late Response response;
    if (await checkInternetConnexion()) {
      try {
        response = await _dio.delete(
          path,
          options: options,
          queryParameters: queryParameters,
        );
      } catch (error) {
        _exception(error);
      }
    } else {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }

    return response;
  }

  void _exception(dynamic error) {
    if (error is DioException) {
      throw error;
    }
    if (error is SocketException) {
      throw Exception("Vous n'êtes pas connecté à Internet");
    }
    if (error is TimeoutException) {
      throw throw Exception("Time out");
    }
  }

  Future<Response<dynamic>> download(
    String urlPath,
    savePath, {
    ProgressCallback? onReceiveProgress,
    Map<String, dynamic>? queryParameters,
    CancelToken? cancelToken,
    bool deleteOnError = true,
    String lengthHeader = Headers.contentLengthHeader,
    data,
    options,
  }) async {
    late Response response;
    try {
      response = await _dio.download(
        urlPath,
        savePath,
        onReceiveProgress: onReceiveProgress,
        queryParameters: queryParameters,
        cancelToken: cancelToken,
        deleteOnError: deleteOnError,
        lengthHeader: lengthHeader,
        data: data,
        options: options,
      );
    } catch (error) {
      _exception(error);
    }
    return response;
  }

  Future<Response<dynamic>> uploadPatch(
    String endPoint, {
    ProgressCallback? onSendProgress,
    Map<String, dynamic>? queryParameters,
    CancelToken? cancelToken,
    bool deleteOnError = true,
    String lengthHeader = Headers.contentLengthHeader,
    data,
    options,
  }) async {
    late Response response;
    try {
      response = await _dio.request(
        endPoint,
        onSendProgress: onSendProgress,
        data: data,
        options: Options(
          method: 'PATCH', // or 'PUT'
        ),
      );
    } catch (error) {
      _exception(error);
    }
    return response;
  }

  Future<Response<dynamic>> uploadPost(
    String endPoint, {
    ProgressCallback? onSendProgress,
    Map<String, dynamic>? queryParameters,
    CancelToken? cancelToken,
    bool deleteOnError = true,
    String lengthHeader = Headers.contentLengthHeader,
    data,
    options,
  }) async {
    late Response response;
    try {
      response = await _dio.post(
        endPoint,
        onSendProgress: onSendProgress,
        data: data,
      );
    } catch (error) {
      _exception(error);
    }
    return response;
  }
}