dev check violation for lawcase,complaint

src/main/java/ru/soune/nocopy/dto/MessageCode.java

@@ -22,6 +22,8 @@ public enum MessageCode {
     LAW_CASE_NOT_FOUND(4, "Law case not found"),
     PERMISSION_NOT_FOUND(2, "Permission not found"),
     USER_NOT_FOUND(2, "User not found"),
+    LAW_CASE_ALREADY_EXIST(2, "Law case already exists"),
+    COMPLAINT_ALREADY_EXIST(2, "Complaint already exists"),
     FILE_DOWNLOAD_ERROR_NOT_CORRECT_FIELD(2, "Not correct field"),
     TOKEN_IS_NULL(2, "Token field is null"),
     IMAGE_FOUND_ERROR(2, "Image found error"),

src/main/java/ru/soune/nocopy/handler/ComplaintEntityHandler.java

@@ -90,14 +90,20 @@ public class ComplaintEntityHandler implements RequestHandler {
                 "violation_id is required");
         if (req.getComplaintText() == null) return errorResponse(msgId, MessageCode.NOT_FOUND.getCode(),
                 "text is required");
+        Long violationId = req.getViolationId();
 
-        Violation violation = violationRepository.findById(req.getViolationId()).orElse(null);
+        Violation violation = violationRepository.findById(violationId).orElse(null);
 
         if (violation == null || !Objects.equals(violation.getFileEntity().getUserId(), userId)) {
             return errorResponse(msgId, MessageCode.USER_NOT_HAD_PERMISSION.getCode(),
                     MessageCode.USER_NOT_HAD_PERMISSION.getDescription());
         }
 
+        if (violationRepository.existsViolation(violationId)) {
+            return errorResponse(msgId, MessageCode.COMPLAINT_ALREADY_EXIST.getCode(),
+                    MessageCode.COMPLAINT_ALREADY_EXIST.getDescription());
+        }
+
         ComplaintResponse response = complaintService.createComplaint(req);
 
         return successResponse(msgId, "Complaint created successfully", response);

src/main/java/ru/soune/nocopy/handler/LawCaseHandler.java

@@ -162,6 +162,12 @@ public class LawCaseHandler implements RequestHandler {
 
     private BaseResponse createLawCase(Long userId, LawCaseRequest lawCaseRequest, BaseRequest request) {
         validateRequiredParameters(lawCaseRequest, request, userId);
+        Long violationId = lawCaseRequest.getViolationId();
+
+        if (lawCaseService.lawCaseExistByViolationId(violationId)) {
+            return new BaseResponse(request.getMsgId(), MessageCode.LAW_CASE_ALREADY_EXIST.getCode(),
+                    MessageCode.LAW_CASE_ALREADY_EXIST.getDescription(), "Law case was already exists");
+        }
 
         try {
             tariffInfoService.writeOffTokens(userId, TariffConstants.LEGAL_COST, OperationType.CREATE_LEGAL_CASE);
@@ -175,7 +181,6 @@ public class LawCaseHandler implements RequestHandler {
         }
 
         User user = userRepository.findById(userId).orElseThrow(() -> new UserNotFoundException("User not found"));
-        Long violationId = lawCaseRequest.getViolationId();
 
         LawCase lawCase = lawCaseService.addLawCase(
                 lawCaseRequest.getAmount(),

src/main/java/ru/soune/nocopy/repository/LawCaseRepository.java

@@ -55,4 +55,6 @@ public interface LawCaseRepository extends JpaRepository<LawCase, Long> {
 
 
     Optional<LawCase> getLawCaseByViolationIdAndType(Long violationId, LawCaseType type);
+
+    boolean existsByViolationId(Long violationId);
 }

src/main/java/ru/soune/nocopy/repository/ViolationRepository.java

@@ -95,4 +95,6 @@ public interface ViolationRepository extends JpaRepository<Violation, Long> {
 
     @Query("SELECT COUNT(DISTINCT c.violation.id) FROM ComplaintEntity c WHERE c.violation IS NOT NULL")
     Long getViolationsWithComplaintCount();
+
+    boolean existsViolation(Long violationId);
 }

src/main/java/ru/soune/nocopy/service/complaint/LawCaseService.java

@@ -51,6 +51,10 @@ public class LawCaseService {
         return lawCaseRepository.save(lawCase);
     }
 
+    public boolean lawCaseExistByViolationId(Long violationId) {
+        return lawCaseRepository.existsByViolationId(violationId);
+    }
+
     public LawCase changePriority(Long id, LawCasePriority priority) {
         LawCase lawCase = lawCaseRepository.findById(id).orElse(null);
         if (lawCase == null) {