added new endpoints delete scanned history, delete all scanned histories, delete bookmarks, delete all bookmarks

src/main/java/com/safeqr/app/user/service/UserService.java

@@ -1,19 +1,30 @@
 package com.safeqr.app.user.service;
 
-import com.safeqr.app.exceptions.CustomNotFoundExceptions;
+import com.safeqr.app.exceptions.ResourceAlreadyExists;
+import com.safeqr.app.exceptions.ResourceNotFoundExceptions;
 import com.safeqr.app.qrcode.entity.QRCodeEntity;
+import com.safeqr.app.qrcode.entity.ScanBookmarkEntity;
 import com.safeqr.app.qrcode.repository.ScanBookmarkRepository;
 import com.safeqr.app.qrcode.repository.ScanHistoryRepository;
+import com.safeqr.app.user.controller.UserController;
+import com.safeqr.app.user.dto.BaseResponse;
 import com.safeqr.app.user.dto.UserResponseDto;
 import com.safeqr.app.user.entity.UserEntity;
 import com.safeqr.app.user.repository.UserRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
 
 @Service
 public class UserService {
+    private static final Logger logger = LoggerFactory.getLogger(UserService.class);
 
     @Autowired
     public UserService(UserRepository userRepository,
@@ -30,7 +41,7 @@ public class UserService {
     public UserResponseDto getUserById(String userId) {
         // Find user by id
         UserEntity userEntity = userRepository.findById(userId)
-                .orElseThrow(() -> new CustomNotFoundExceptions("User id not found: " + userId));
+                .orElseThrow(() -> new ResourceNotFoundExceptions("User id not found: " + userId));
 
         // Map to DTO before returning to controller
         return UserResponseDto.builder()
@@ -46,7 +57,70 @@ public class UserService {
     public List<QRCodeEntity> getUserScannedHistories(String userId) {
         return scanHistoryRepository.findAllQRCodesByUserId(userId);
     }
+    @Transactional
+    public BaseResponse deleteScannedHistory(String userId, UUID qrCodeId) {
+        int updatedCount = scanHistoryRepository.updateScannedHistoryToInactive(userId, qrCodeId);
+        // throw exception if bookmark not found
+        if (updatedCount < 1)
+            throw new ResourceNotFoundExceptions("Scanned QR Code not found");
+
+        return BaseResponse.builder().message("Scanned QR Code deleted successfully").build();
+    }
+
+    @Transactional
+    public BaseResponse deleteAllScannedHistoriesByUserId(String userId) {
+        int updatedCount = scanHistoryRepository.updateScannedHistoriesToInactiveByUserId(userId);
+
+        return (updatedCount < 1) ?
+                BaseResponse.builder().message("No QR Code not found").build():
+                BaseResponse.builder().message("All scanned QR Code deleted successfully").build();
+    }
     public List<QRCodeEntity> getUserBookmarks(String userId) {
         return scanBookmarkRepository.findAllBookmarksByUserId(userId);
     }
+    @Transactional
+    public BaseResponse setBookmark(String userId, UUID qrCodeId) {
+        // Check if the bookmark already exists
+        Optional<ScanBookmarkEntity> existingBookmark = scanBookmarkRepository.findByUserIdAndQrCodeId(userId, qrCodeId);
+
+        // throw exception if bookmark already exists
+        if (existingBookmark.isPresent()) {
+            throw new ResourceAlreadyExists("Bookmark already exists!");
+        }
+        try {
+            // Save bookmark
+            ScanBookmarkEntity bookmarkEntity = ScanBookmarkEntity.builder()
+                    .userId(userId)
+                    .qrCodeId(qrCodeId)
+                    .bookmarkStatus(ScanBookmarkEntity.BookmarkStatus.ACTIVE)
+                    .build();
+            scanBookmarkRepository.save(bookmarkEntity);
+
+        } catch (DataIntegrityViolationException e) {
+            logger.error("Failed to create bookmark: {}", e.getMessage());
+            // throw exception if bookmark creation fails
+            throw new ResourceNotFoundExceptions("Unable to create bookmark. The QR code may not exist.");
+        }
+
+        return BaseResponse.builder().message("Bookmark saved successfully").build();
+    }
+
+    @Transactional
+    public BaseResponse deleteBookmark(String userId, UUID qrCodeId) {
+        int updatedCount = scanBookmarkRepository.updateBookmarkStatusToInactive(userId, qrCodeId);
+        // throw exception if bookmark not found
+        if (updatedCount < 1)
+            throw new ResourceNotFoundExceptions("Bookmark not found");
+
+        return BaseResponse.builder().message("Bookmark deleted successfully").build();
+    }
+
+    @Transactional
+    public BaseResponse deleteAllBookmarkByUserId(String userId) {
+        int updatedCount = scanBookmarkRepository.updateBookmarkStatusToInactiveByUserId(userId);
+
+        return (updatedCount < 1) ?
+                BaseResponse.builder().message("No Bookmark not found").build():
+                BaseResponse.builder().message("All Bookmarks deleted successfully").build();
+    }
 }