[feat] 알림 설정 조회 및 on/off 기능 구현 #89

src/main/java/com/back/domain/notification/controller/NotificationController.java

@@ -2,6 +2,10 @@
 
 import com.back.domain.notification.dto.NotificationGoResponseDto;
 import com.back.domain.notification.dto.NotificationListResponseDto;
+import com.back.domain.notification.dto.NotificationSettingDto;
+import com.back.domain.notification.service.NotificationSettingService;
+import com.back.domain.notification.dto.NotificationSettingUpdateRequestDto;
+import jakarta.validation.Valid;
 import com.back.domain.notification.service.NotificationService;
 import com.back.global.rsData.RsData;
 import jakarta.validation.constraints.Max;
@@ -21,6 +25,7 @@
 public class NotificationController {
 
     private final NotificationService notificationService;
+    private final NotificationSettingService notificationSettingService;
 
     @GetMapping("/notifications")
     public RsData<NotificationListResponseDto> getNotifications(
@@ -33,6 +38,23 @@ public RsData<NotificationListResponseDto> getNotifications(
         return RsData.successOf(body);
     }
 
+    @GetMapping("/notification-setting")
+    public RsData<NotificationSettingDto> getMyNotificationSetting(
+            @AuthenticationPrincipal(expression = "id") Long userId
+    ) {
+        NotificationSettingDto body = notificationSettingService.getMySetting(userId);
+        return RsData.successOf(body);
+    }
+
+    @PatchMapping("/notification-setting")
+    public RsData<NotificationSettingDto> setMyNotificationSetting(
+            @AuthenticationPrincipal(expression = "id") Long userId,
+            @Valid @RequestBody NotificationSettingUpdateRequestDto req
+    ) {
+        NotificationSettingDto body = notificationSettingService.setMySetting(userId, req.enabled());
+        return RsData.successOf(body);
+    }
+
     @PostMapping("/notifications/{id}")
     public RsData<NotificationGoResponseDto> goPostLink(
             @AuthenticationPrincipal(expression = "id") Long userId,

src/main/java/com/back/domain/notification/dto/NotificationSettingDto.java

@@ -0,0 +1,16 @@
+package com.back.domain.notification.dto;
+
+import com.back.domain.notification.entity.NotificationSetting;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class NotificationSettingDto {
+    private boolean enabled;
+
+    public static NotificationSettingDto from(NotificationSetting s) {
+        return new NotificationSettingDto(s.isEnabled());
+    }
+}
+

src/main/java/com/back/domain/notification/dto/NotificationSettingUpdateRequestDto.java

@@ -0,0 +1,8 @@
+package com.back.domain.notification.dto;
+
+import jakarta.validation.constraints.NotNull;
+
+public record NotificationSettingUpdateRequestDto(
+        @NotNull Boolean enabled
+) {}
+

src/main/java/com/back/domain/notification/entity/NotificationSetting.java

@@ -0,0 +1,44 @@
+package com.back.domain.notification.entity;
+
+import com.back.domain.user.entity.User;
+import jakarta.persistence.*;
+import lombok.*;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import java.time.LocalDateTime;
+
+@Entity
+@EntityListeners(AuditingEntityListener.class)
+@Getter
+@Setter
+@NoArgsConstructor(access = lombok.AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+public class NotificationSetting {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Setter
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id", nullable = false, unique = true)
+    private User user;
+
+    @Setter
+    @Builder.Default
+    private boolean enabled = true;
+
+    @CreatedDate
+    private LocalDateTime createdAt;
+
+    @LastModifiedDate
+    private LocalDateTime updatedAt;
+
+    public void toggle() {
+        this.enabled = !this.enabled;
+    }
+
+}

src/main/java/com/back/domain/notification/repository/NotificationSettingRepository.java

@@ -0,0 +1,18 @@
+package com.back.domain.notification.repository;
+
+import com.back.domain.notification.entity.NotificationSetting;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface NotificationSettingRepository extends JpaRepository<NotificationSetting, Long> {
+
+    @Query("""
+        select ns from NotificationSetting ns
+         where ns.user.id = :userId
+    """)
+    NotificationSetting findByUserId(@Param("userId") Long userId);
+}
+

src/main/java/com/back/domain/notification/service/NotificationSettingService.java

@@ -0,0 +1,46 @@
+package com.back.domain.notification.service;
+
+import com.back.domain.notification.dto.NotificationSettingDto;
+import com.back.domain.notification.entity.NotificationSetting;
+import com.back.domain.notification.repository.NotificationSettingRepository;
+import com.back.domain.user.entity.User;
+import com.back.domain.user.repository.UserRepository;
+import com.back.global.exception.ServiceException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+public class NotificationSettingService {
+
+    private final NotificationSettingRepository notificationSettingRepository;
+    private final UserRepository userRepository;
+
+    @Transactional(readOnly = true)
+    public NotificationSettingDto getMySetting(Long userId) {
+        NotificationSetting s = notificationSettingRepository.findByUserId(userId);
+        if (s == null) {
+            // Default when not created yet
+            return new NotificationSettingDto(true);
+        }
+        return NotificationSettingDto.from(s);
+    }
+
+    @Transactional
+    public NotificationSettingDto setMySetting(Long userId, boolean enabled) {
+        NotificationSetting s = notificationSettingRepository.findByUserId(userId);
+        if (s == null) {
+            User user = userRepository.findById(userId)
+                    .orElseThrow(() -> new ServiceException(404, "사용자를 찾을 수 없습니다."));
+            s = NotificationSetting.builder()
+                    .user(user)
+                    .enabled(enabled)
+                    .build();
+        } else {
+            s.setEnabled(enabled);
+        }
+        NotificationSetting saved = notificationSettingRepository.save(s);
+        return NotificationSettingDto.from(saved);
+    }
+}