PatientApp-KKUMC/lib/services/payfort_services/payfort_service.dart

import 'dart:convert';

import 'package:amazon_payfort/amazon_payfort.dart';
import 'package:diplomaticquarterapp/config/config.dart';
import 'package:diplomaticquarterapp/core/service/base_service.dart';
import 'package:diplomaticquarterapp/services/payfort_services/payfort_project_details_resp_model.dart';
import 'package:diplomaticquarterapp/services/payfort_services/sdk_token_response_model.dart';
import 'package:diplomaticquarterapp/uitl/utils.dart';
import 'package:http/http.dart';
import 'package:network_info_plus/network_info_plus.dart';

class PayfortService extends BaseService {
  final AmazonPayfort _payfort = AmazonPayfort.instance;

  final NetworkInfo _info = NetworkInfo();

  Future<void> initPayfortSDK() async {
    await AmazonPayfort.initialize(
      PayFortOptions(environment: payFortEnvironment),
    );
  }

  Future<PayfortProjectDetailsRespModel> getPayfortConfigurations({int serviceId, int projectId, int integrationId = 2}) async {
    Map<String, dynamic> body = {"Integration_Id": integrationId, "ServID": serviceId, "ProjectID": projectId};

    PayfortProjectDetailsRespModel payfortProjectDetailsRespModel = PayfortProjectDetailsRespModel();
    await baseAppClient.post(
      getPayFortProjectDetails,
      onSuccess: (response, statusCode) async {
        payfortProjectDetailsRespModel = PayfortProjectDetailsRespModel.fromJson(response.isNotEmpty ? response.first : response);
      },
      onFailure: (String error, int statusCode) {
        Utils.showErrorToast(error);
        return null;
      },
      body: body,
      isAllowAny: true,
    );
    return payfortProjectDetailsRespModel;
  }

  Future<SdkTokenResponse> generateSdkSignatureFromAPI(SdkTokenRequest request) async {
    var response = await post(
      Uri.parse(payFortEnvironment.paymentApi),
      headers: {'Content-Type': 'application/json'},
      body: jsonEncode(request.asRequest()),
    );
    if (response.statusCode == 200) {
      var decodedResponse = jsonDecode(response.body);
      return SdkTokenResponse.fromMap(decodedResponse);
    }
    return null;
  }

  Future<SdkTokenResponse> _generateSdkResponse({
    String applePayAccessCode,
    String merchantIdentifier,
    String applePayShaType,
    String applePayShaRequestPhrase,
  }) async {
    try {
      String deviceId = await _payfort.getDeviceId();

      /// Step 2:  Generate the Signature
      SdkTokenRequest tokenRequest = SdkTokenRequest(
        accessCode: applePayAccessCode,
        deviceId: deviceId ?? '',
        merchantIdentifier: merchantIdentifier,
      );

      String signature = await _payfort.generateSignature(
        shaType: applePayShaType,
        concatenatedString: tokenRequest.toConcatenatedString(applePayShaRequestPhrase),
      );

      tokenRequest = tokenRequest.copyWith(signature: signature);

      /// Step 3: Generate the SDK Token
      return await generateSdkSignatureFromAPI(tokenRequest);
    } catch (e) {
      print("Error here: ${e.toString()}");
    }
    return null;
  }

  Future<void> paymentWithApplePay({
    SucceededCallback onSucceeded,
    FailedCallback onFailed,
    String customerName,
    String customerEmail,
    String orderDescription,
    double orderAmount,
    String merchantIdentifier,
    String applePayAccessCode,
    String applePayShaRequestPhrase,
    String merchantReference,
    String currency = "SAR",
    String applePayShaType = "SHA-256",
    String countryIsoCode = "SA",
  }) async {
    try {
      SdkTokenResponse sdkTokenResponse = await _generateSdkResponse(
        applePayAccessCode: applePayAccessCode,
        merchantIdentifier: merchantIdentifier,
        applePayShaType: applePayShaType,
        applePayShaRequestPhrase: applePayShaRequestPhrase,
      );

      if (sdkTokenResponse != null && sdkTokenResponse.sdkToken == null) {
        onFailed(sdkTokenResponse.responseMessage ?? '');
        return;
      }

      /// Step 4: Processing Payment [Don't multiply with 100]
      /// Amount value send always round ex. [100] not [100.00, 100.21]
      FortRequest request = FortRequest(
        amount: orderAmount,
        customerName: customerName,
        customerEmail: customerEmail,
        orderDescription: orderDescription,
        sdkToken: sdkTokenResponse?.sdkToken ?? '',
        merchantReference: merchantReference,
        currency: currency,
        customerIp: (await _info.getWifiIP() ?? ''),
      );

      _payfort.callPayFortForApplePay(
        request: request,
        countryIsoCode: countryIsoCode,
        applePayMerchantId: applePayMerchantId,
        callback: ApplePayResultCallback(
          onSucceeded: onSucceeded,
          onFailed: onFailed,
        ),
      );
    } catch (e) {
      onFailed(e.toString());
    }
  }
}