[REFACTOR] 홈 화면 로직 변경

src/main/java/com/deare/backend/api/home/controller/HomeController.java

@@ -1,14 +1,14 @@
 package com.deare.backend.api.home.controller;
 
+import com.deare.backend.api.home.dto.request.HomeEditRequestDTO;
 import com.deare.backend.api.home.dto.response.HomeDashboardResponse;
 import com.deare.backend.api.home.service.HomeService;
 import com.deare.backend.global.auth.util.SecurityUtil;
 import com.deare.backend.global.common.response.ApiResponse;
 import io.swagger.v3.oas.annotations.Operation;
+import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequiredArgsConstructor
@@ -27,4 +27,16 @@ public ApiResponse<HomeDashboardResponse> getHome() {
         HomeDashboardResponse res = homeService.getHome(userId);
         return ApiResponse.success(res);
     }
+
+    @PutMapping
+    @Operation(
+            summary = "홈 화면 편집 저장",
+            description = "스티커 배치 , 배경색 변경 등 홈화면 편집 내용을 저장하는 API입니다."
+    )
+    public ApiResponse<Void> editHome(@Valid @RequestBody HomeEditRequestDTO request){
+        Long userId = SecurityUtil.getCurrentUserId();
+        homeService.editHome(userId, request);
+        return ApiResponse.success(null);
+    }
+
 }

src/main/java/com/deare/backend/api/home/dto/request/HomeEditRequestDTO.java

@@ -0,0 +1,24 @@
+package com.deare.backend.api.home.dto.request;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+public record HomeEditRequestDTO(
+        @NotBlank
+        @Pattern(regexp = "^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{8})$",
+                message = "HEX 색상 코드 형식이 올바르지 않습니다.")
+        String homeColor, List<StickerRequest> stickers
+) {
+    @NotNull
+    public record StickerRequest(
+            Long imageId,
+            BigDecimal posX,
+            BigDecimal posY,
+            Integer posZ,
+            BigDecimal rotation,
+            BigDecimal scale
+    ){}
+}

src/main/java/com/deare/backend/api/home/service/HomeService.java

@@ -1,10 +1,15 @@
 package com.deare.backend.api.home.service;
 
+import com.deare.backend.api.home.dto.request.HomeEditRequestDTO;
+import com.deare.backend.api.home.dto.request.HomeEditRequestDTO.StickerRequest;
 import com.deare.backend.api.home.dto.response.HomeDashboardResponse;
 import com.deare.backend.api.home.dto.result.HomeSettingDto;
 import com.deare.backend.api.home.dto.result.HomeStickerDto;
 import com.deare.backend.api.home.dto.result.HomeUserDto;
 import com.deare.backend.api.home.exception.HomeErrorCode;
+import com.deare.backend.domain.image.entity.Image;
+import com.deare.backend.domain.image.exception.ImageErrorCode;
+import com.deare.backend.domain.image.repository.ImageRepository;
 import com.deare.backend.domain.setting.entity.UserSetting;
 import com.deare.backend.domain.setting.repository.UserSettingRepository;
 import com.deare.backend.domain.sticker.entity.UserSticker;
@@ -17,6 +22,8 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
@@ -25,6 +32,7 @@ public class HomeService {
     private final UserRepository userRepository;
     private final UserSettingRepository userSettingRepository;
     private final UserStickerRepository stickerRepository;
+    private final ImageRepository imageRepository;
 
     @Transactional(readOnly=true)
     public HomeDashboardResponse getHome(Long userId) {
@@ -64,6 +72,50 @@ public HomeDashboardResponse getHome(Long userId) {
                 stickerDtos
         );
     }
+    @Transactional
+    public void editHome(Long userId, HomeEditRequestDTO request) {
+
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new GeneralException(HomeErrorCode.USER_NOT_FOUND));
+
+        UserSetting userSetting = userSettingRepository.findByUser_Id(userId).orElse(null);
+        if (userSetting != null) {
+            userSetting.updateHomeColor(request.homeColor());
+        } else {
+            userSettingRepository.save(UserSetting.createDefault(user, request.homeColor()));
+        }
+
+        stickerRepository.deleteAllByUserId(userId);
+
+        List<StickerRequest> stickerRequests = request.stickers();
+        if (stickerRequests.isEmpty()) {
+            return;
+        }
+
+        List<Long> imageIds = stickerRequests.stream()
+                .map(HomeEditRequestDTO.StickerRequest::imageId)
+                .distinct()
+                .toList();
+
+        Map<Long, Image> imageMap = imageRepository.findAllById(imageIds).stream()
+                .collect(Collectors.toMap(Image::getId, image -> image));
+
+        List<UserSticker> newStickers = stickerRequests.stream()
+                .map(dto -> {
+                    Image image = imageMap.get(dto.imageId());
+                    if (image == null) {
+                        throw new GeneralException(ImageErrorCode.IMAGE_40001);
+                    }
+                    return UserSticker.create(
+                            user, image,
+                            dto.posX(), dto.posY(), dto.posZ(),
+                            dto.rotation(), dto.scale()
+                    );
+                })
+                .toList();
+
+        stickerRepository.saveAll(newStickers);
+    }
 
     private HomeStickerDto toStickerDto(UserSticker sticker) {
         return new HomeStickerDto(

src/main/java/com/deare/backend/api/setting/controller/SettingController.java

@@ -1,13 +1,11 @@
 package com.deare.backend.api.setting.controller;
 
 import com.deare.backend.api.setting.dto.request.UpdateFontRequestDTO;
-import com.deare.backend.api.setting.dto.request.UpdateHomeColorRequestDTO;
 import com.deare.backend.api.setting.dto.response.*;
 import com.deare.backend.api.setting.service.SettingService;
 import com.deare.backend.global.auth.util.SecurityUtil;
 import com.deare.backend.global.common.response.ApiResponse;
 import io.swagger.v3.oas.annotations.Operation;
-import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.*;
 
@@ -47,17 +45,5 @@ public ApiResponse<UpgradeMembershipResponseDTO> upgradeMembership() {
         Long userId = SecurityUtil.getCurrentUserId();
         return ApiResponse.success(settingService.upgradeMembership(userId));
     }
-    @PatchMapping("/homecolor")
-    @Operation(
-            summary = "홈 배경색 변경",
-            description = "사용자의 홈 화면 배경색을 변경하는 API입니다."
-    )
-    public ApiResponse<UpdateHomeColorResponseDTO> updateHomeColor(
-            @Valid @RequestBody UpdateHomeColorRequestDTO request
-    ) {
-        Long userId = SecurityUtil.getCurrentUserId();
-        UpdateHomeColorResponseDTO res = settingService.updateHomeColor(userId, request);
-        return ApiResponse.success(res);
-    }
 
 }

src/main/java/com/deare/backend/api/setting/service/SettingService.java

@@ -1,12 +1,10 @@
 package com.deare.backend.api.setting.service;
 
 import com.deare.backend.api.setting.dto.request.UpdateFontRequestDTO;
-import com.deare.backend.api.setting.dto.request.UpdateHomeColorRequestDTO;
 import com.deare.backend.api.setting.dto.response.*;
 import com.deare.backend.domain.setting.entity.enums.Font;
 import com.deare.backend.domain.setting.entity.enums.MembershipPlan;
 import com.deare.backend.domain.setting.entity.UserSetting;
-import com.deare.backend.domain.setting.exception.HomeColorErrorCode;
 import com.deare.backend.domain.setting.exception.MembershipErrorCode;
 import com.deare.backend.domain.setting.exception.ThemeErrorCode;
 import com.deare.backend.domain.setting.repository.UserSettingRepository;
@@ -89,16 +87,5 @@ private Font parseFontOrThrow422(String raw) {
             throw new GeneralException(ThemeErrorCode.THEME_UNPROCESSABLE_ENTITY);
         }
     }
-    @Transactional
-    public UpdateHomeColorResponseDTO updateHomeColor(Long userId, UpdateHomeColorRequestDTO request) {
-
-        settingWriteService.ensureSettingExists(userId);
-
-        UserSetting setting = userSettingRepository.findByUser_Id(userId)
-                .orElseThrow(() -> new GeneralException(HomeColorErrorCode.SETTING_NOT_FOUND ));
-
-        setting.updateHomeColor(request.homeColor());
-        return new UpdateHomeColorResponseDTO(setting.getHomeColor());
-    }
 
 }