feat: add upload file

src/main/java/aplp/backend/lms/common/storage/FileController.java

@@ -3,6 +3,7 @@ package aplp.backend.lms.common.storage;
 import aplp.backend.core.common.response.ApiResponse;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -26,4 +27,10 @@ public class FileController {
         return ResponseEntity.status(HttpStatus.CREATED)
                 .body(ApiResponse.ok(fileStorageService.upload(file, folder)));
     }
+
+    @DeleteMapping
+    public ResponseEntity<ApiResponse<Void>> delete(@RequestParam("objectKey") String objectKey) {
+        fileStorageService.delete(objectKey);
+        return ResponseEntity.ok(ApiResponse.ok("Deleted successfully", null));
+    }
 }

src/main/java/aplp/backend/lms/common/storage/FileStorageService.java

@@ -4,6 +4,7 @@ import aplp.backend.core.common.exception.DomainException;
 import aplp.backend.core.common.exception.ErrorCode;
 import io.minio.MinioClient;
 import io.minio.PutObjectArgs;
+import io.minio.RemoveObjectArgs;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -44,13 +45,53 @@ public class FileStorageService {
         }
 
         return new FileResDto(
-                properties.publicUrl() + "/" + properties.bucket() + "/" + objectKey,
+                publicUrl(objectKey),
                 objectKey,
                 file.getSize(),
                 contentType
         );
     }
 
+    public String publicUrl(String objectKey) {
+        if (objectKey == null || objectKey.isBlank()) {
+            return null;
+        }
+        if (isAbsoluteUrl(objectKey)) {
+            return objectKey;
+        }
+        return properties.publicUrl() + "/" + properties.bucket() + "/" + objectKey;
+    }
+
+    public void delete(String objectKey) {
+        String key = toObjectKey(objectKey);
+        if (key == null) {
+            throw new DomainException(ErrorCode.INVALID_ARGUMENT, "objectKey is required");
+        }
+        try {
+            minioClient.removeObject(RemoveObjectArgs.builder()
+                    .bucket(properties.bucket())
+                    .object(key)
+                    .build());
+        } catch (Exception e) {
+            throw new DomainException(ErrorCode.INTERNAL_ERROR, "Failed to delete file: " + e.getMessage());
+        }
+    }
+
+    private String toObjectKey(String value) {
+        if (value == null || value.isBlank()) {
+            return null;
+        }
+        String prefix = properties.publicUrl() + "/" + properties.bucket() + "/";
+        if (value.startsWith(prefix)) {
+            return value.substring(prefix.length());
+        }
+        return isAbsoluteUrl(value) ? null : value;
+    }
+
+    private static boolean isAbsoluteUrl(String value) {
+        return value.startsWith("http://") || value.startsWith("https://");
+    }
+
     static String buildObjectKey(String folder, String contentType, String originalFilename) {
         return sanitizeFolder(folder) + "/" + UUID.randomUUID() + "." + extensionFor(contentType, originalFilename);
     }

src/main/java/aplp/backend/lms/course/application/dtos/CourseResDto.java

@@ -1,5 +1,6 @@
 package aplp.backend.lms.course.application.dtos;
 
+import aplp.backend.lms.common.storage.FileStorageService;
 import aplp.backend.lms.course.domain.entities.Course;
 
 import java.time.LocalDateTime;
@@ -11,11 +12,12 @@ public record CourseResDto(
         String slug,
         String description,
         String image,
+        String imageUrl,
         boolean isPublished,
         LocalDateTime createdAt,
         LocalDateTime updatedAt
 ) {
-    public static CourseResDto from(Course course) {
+    public static CourseResDto from(Course course, FileStorageService fileStorageService) {
         return new CourseResDto(
                 course.getId(),
                 course.getCourseCode(),
@@ -23,6 +25,7 @@ public record CourseResDto(
                 course.getSlug(),
                 course.getDescription(),
                 course.getImage(),
+                fileStorageService.publicUrl(course.getImage()),
                 course.isPublished(),
                 course.getCreatedAt(),
                 course.getUpdatedAt()

src/main/java/aplp/backend/lms/course/application/mappers/CourseMapper.java

@@ -1,7 +1,6 @@
 package aplp.backend.lms.course.application.mappers;
 
 import aplp.backend.lms.course.application.dtos.CourseReqDto;
-import aplp.backend.lms.course.application.dtos.CourseResDto;
 import aplp.backend.lms.course.domain.entities.Course;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
@@ -10,9 +9,6 @@ import org.mapstruct.MappingTarget;
 @Mapper(componentModel = "spring")
 public interface CourseMapper {
 
-    @Mapping(target = "isPublished", source = "published")
-    CourseResDto toResponse(Course course);
-
     @Mapping(target = "published", source = "isPublished")
     Course toEntity(CourseReqDto request);
 

src/main/java/aplp/backend/lms/course/application/services/CourseService.java

@@ -1,11 +1,14 @@
 package aplp.backend.lms.course.application.services;
 
 import aplp.backend.core.common.exception.ResourceNotFoundException;
+import aplp.backend.lms.common.storage.FileStorageService;
 import aplp.backend.lms.course.application.dtos.CourseReqDto;
 import aplp.backend.lms.course.application.dtos.CourseResDto;
 import aplp.backend.lms.course.application.mappers.CourseMapper;
 import aplp.backend.lms.course.domain.entities.Course;
 import aplp.backend.lms.course.domain.repositories.CourseRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -13,18 +16,25 @@ import java.util.List;
 @Service
 public class CourseService {
 
+    private static final Logger log = LoggerFactory.getLogger(CourseService.class);
+
     private final CourseRepository courseRepository;
     private final CourseMapper courseMapper;
+    private final FileStorageService fileStorageService;
 
-    public CourseService(CourseRepository courseRepository, CourseMapper courseMapper) {
+    public CourseService(
+            CourseRepository courseRepository,
+            CourseMapper courseMapper,
+            FileStorageService fileStorageService) {
         this.courseRepository = courseRepository;
         this.courseMapper = courseMapper;
+        this.fileStorageService = fileStorageService;
     }
 
     public List<CourseResDto> getAll() {
         return courseRepository.findAll()
                 .stream()
-                .map(CourseResDto::from)
+                .map(course -> CourseResDto.from(course, fileStorageService))
                 .toList();
     }
 
@@ -32,26 +42,41 @@ public class CourseService {
         Course course = courseRepository.findById(id)
                 .orElseThrow(() -> new ResourceNotFoundException("Course not found"));
 
-        return CourseResDto.from(course);
+        return CourseResDto.from(course, fileStorageService);
     }
 
     public CourseResDto create(CourseReqDto request) {
-        Course course = courseMapper.toEntity(request);
+        Course course = courseRepository.save(courseMapper.toEntity(request));
-        return courseMapper.toResponse(courseRepository.save(course));
+        return CourseResDto.from(course, fileStorageService);
     }
 
     public CourseResDto update(Long id, CourseReqDto request) {
         Course course = courseRepository.findById(id)
                 .orElseThrow(() -> new ResourceNotFoundException("Course not found"));
 
+        String previousImage = course.getImage();
         courseMapper.updateEntity(request, course);
+        Course saved = courseRepository.save(course);
 
-        return courseMapper.toResponse(courseRepository.save(course));
+        if (previousImage != null && !previousImage.isBlank() && !previousImage.equals(saved.getImage())) {
+            deleteFileQuietly(previousImage);
+        }
+
+        return CourseResDto.from(saved, fileStorageService);
     }
 
     public void delete(Long id) {
-        courseRepository.findById(id)
+        Course course = courseRepository.findById(id)
                 .orElseThrow(() -> new ResourceNotFoundException("Course not found"));
         courseRepository.deleteById(id);
+        deleteFileQuietly(course.getImage());
+    }
+
+    private void deleteFileQuietly(String objectKey) {
+        try {
+            fileStorageService.delete(objectKey);
+        } catch (Exception e) {
+            log.warn("Failed to delete image '{}': {}", objectKey, e.getMessage());
+        }
     }
 }

src/main/resources/application.yaml

@@ -31,7 +31,7 @@ minio:
   endpoint: https://minio.koda.id.vn
   access-key: CHANGE_ME
   secret-key: CHANGE_ME
-  bucket: lms
+  bucket: aplp
   public-url: https://minio.koda.id.vn
 
 springdoc: