add security

src/main/java/com/billpaymentservice/bbps/serviceImpl/MasterDataServiceImpl.java

@@ -2,28 +2,35 @@ package com.billpaymentservice.bbps.serviceImpl;
 
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 import org.modelmapper.ModelMapper;
 import org.modelmapper.convention.MatchingStrategies;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpHeaders;
 import org.springframework.stereotype.Service;
+
+import com.billpaymentservice.bbps.config.JwtUtil;
 import com.billpaymentservice.bbps.dto.CustomParamDTO;
 import com.billpaymentservice.bbps.dto.CustomerParamGroupsDTO;
 import com.billpaymentservice.bbps.dto.GeneralResp;
 import com.billpaymentservice.bbps.dto.MasterApiResponse;
 import com.billpaymentservice.bbps.dto.ResponseModel;
+import com.billpaymentservice.bbps.dto.UserDetailsDTO;
 import com.billpaymentservice.bbps.dto.request.BillerDetailRequest;
 import com.billpaymentservice.bbps.dto.request.ContactMasterRequest;
 import com.billpaymentservice.bbps.dto.request.CustomParamRequest;
 import com.billpaymentservice.bbps.dto.request.DispositionRequest;
+import com.billpaymentservice.bbps.dto.request.LoginRequest;
 import com.billpaymentservice.bbps.dto.request.MasterCategoryRequest;
 import com.billpaymentservice.bbps.dto.request.MasterRequest;
 import com.billpaymentservice.bbps.dto.request.PlanRequest;
 import com.billpaymentservice.bbps.dto.response.AmountOptionsResponse;
+import com.billpaymentservice.bbps.dto.response.AuthResponse;
 import com.billpaymentservice.bbps.dto.response.BillerDataResponse;
 import com.billpaymentservice.bbps.dto.response.BillerResponse;
 import com.billpaymentservice.bbps.dto.response.ChannelsListResponse;
@@ -42,6 +49,7 @@ import com.billpaymentservice.bbps.entites.DispositionDetails;
 import com.billpaymentservice.bbps.entites.InboundTraceLog;
 import com.billpaymentservice.bbps.entites.OutboundTraceLog;
 import com.billpaymentservice.bbps.entites.PlanResponses;
+import com.billpaymentservice.bbps.entites.UsersDetails;
 import com.billpaymentservice.bbps.exception.CustomException;
 import com.billpaymentservice.bbps.repository.BharatConnectMasterRepository;
 import com.billpaymentservice.bbps.repository.BillerDataRepository;
@@ -50,6 +58,7 @@ import com.billpaymentservice.bbps.repository.DispositionRepository;
 import com.billpaymentservice.bbps.repository.InboundTraceLogRepository;
 import com.billpaymentservice.bbps.repository.MerchantRepository;
 import com.billpaymentservice.bbps.repository.OutboundTraceLogRepository;
+import com.billpaymentservice.bbps.repository.UsersDetailsRepository;
 import com.billpaymentservice.bbps.service.MasterDataService;
 import com.billpaymentservice.bbps.util.BBPSConstant;
 import com.billpaymentservice.bbps.util.BillerMapperHelper;
@@ -80,6 +89,11 @@ public class MasterDataServiceImpl implements MasterDataService {
 	private final InboundTraceLogRepository inboundTraceLogRepository;
 	private final OutboundTraceLogRepository outboundTraceLogRepository;
 	private final CustomParamRepository customParamReposiotory;
+	@Autowired
+	private UsersDetailsRepository userRepo;
+
+	@Autowired
+	private JwtUtil jwtUtil;
 
 	public MasterDataServiceImpl(MerchantRepository merchantRegisterRepo, HttpService httpService,
 			HttpClientApi httpClientApi, Helper helper, BillerDataRepository billerDataRespository,
@@ -224,7 +238,7 @@ public class MasterDataServiceImpl implements MasterDataService {
 			throw new CustomException("Invalid JSON received from API");
 		}
 	}
-	
+
 	@Override
 	public ResponseModel getCustomerParamByBillerId(CustomParamRequest customerParamRequest) {
 		String apiName = BBPSConstant.API_GET_CUSTOMER_PARAM_BY_BILLER_ID;
@@ -366,7 +380,7 @@ public class MasterDataServiceImpl implements MasterDataService {
 		LOGGER.info("[{}] START | reqId={} | mid={} | billerName={} | category={}", apiName, requestId, mid,
 				masterRequest.getBillerName(), masterRequest.getCategory());
 
-     	String txnID = helper.generateTxnId(15);
+		String txnID = helper.generateTxnId(15);
 		String fullUrl = String.format("%s%s?billerName=%s&category=%s&page=%d&pagesize=%d", masterRegisterUrl,
 				BBPSConstant.BILLER_URL, masterRequest.getBillerName(), masterRequest.getCategory(),
 				masterRequest.getPageNo(), masterRequest.getPageSize());
@@ -472,7 +486,7 @@ public class MasterDataServiceImpl implements MasterDataService {
 			if (entities != null) {
 				dispositionRepository.saveAll(entities);
 			} else {
-				
+
 				LOGGER.warn("No disposition found in response to save.");
 			}
 
@@ -868,4 +882,40 @@ public class MasterDataServiceImpl implements MasterDataService {
 		}
 	}
 
+	@Override
+	public AuthResponse authenticateUser(LoginRequest loginRequest) {
+		LOGGER.info("Processing login for Request: " + loginRequest);
+
+		try {
+			String mobileNo = loginRequest.getMobileNumber();
+
+			Optional<UsersDetails> byAdminEmail = userRepo.findByUserMobNo(mobileNo);
+
+			if (byAdminEmail.isPresent()) {
+				UsersDetails user = byAdminEmail.get();
+				String token = jwtUtil.generateToken(user.getUserMobNo());
+
+				LOGGER.info("Generated JWT token for mobileNo: " + mobileNo);
+
+				Object userDetailsDTO = null;
+
+				if (user != null) {
+					userDetailsDTO = UserDetailsDTO.builder().id(user.getId()).userEmailId(user.getUserEmailId())
+							.userMobNo(user.getUserMobNo()).userName(user.getUserName()).userAge(user.getUserAge())
+							.build();
+				}
+				return new AuthResponse(token, "Success", "Login Done", 200, userDetailsDTO);
+			} else {
+				return new AuthResponse("", "User Not Found", "Authentication failed", 401, null);
+			}
+
+		} catch (Exception ex) {
+			System.out.println("Error occurred during login for mobile no: " + loginRequest.getMobileNumber()
+					+ " Exception: " + ex.getMessage());
+
+			return AuthResponse.builder().status("Unauthorized").message("Authentication failed: " + ex.getMessage())
+					.statusCode(401).build();
+		}
+	}
+
 }