[BE] 체크리스트리스트 API, 방 비교 API 리팩토링 반영

backend/bang-ggood/src/main/java/com/bang_ggood/category/dto/CategoryQuestionsResponse.java

@@ -1,6 +1,6 @@
 package com.bang_ggood.category.dto;
 
-import com.bang_ggood.checklist.dto.QuestionResponse;
+import com.bang_ggood.checklist.dto.response.QuestionResponse;
 import java.util.List;
 
 public record CategoryQuestionsResponse(Integer categoryId, String categoryName, List<QuestionResponse> questions) {

backend/bang-ggood/src/main/java/com/bang_ggood/category/dto/WrittenCategoryQuestionsResponse.java

@@ -1,6 +1,6 @@
 package com.bang_ggood.category.dto;
 
-import com.bang_ggood.checklist.dto.WrittenQuestionResponse;
+import com.bang_ggood.checklist.dto.response.WrittenQuestionResponse;
 import java.util.List;
 
 public record WrittenCategoryQuestionsResponse(Integer categoryId, String categoryName, List<WrittenQuestionResponse> questions) {

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/controller/ChecklistController.java

@@ -0,0 +1,32 @@
+package com.bang_ggood.checklist.controller;
+
+import com.bang_ggood.checklist.dto.response.ChecklistsWithScoreReadResponse;
+import com.bang_ggood.checklist.dto.response.UserChecklistsPreviewResponse;
+import com.bang_ggood.checklist.service.ChecklistService;
+import com.bang_ggood.user.domain.User;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import java.util.List;
+
+@RestController
+public class ChecklistController {
+
+    private final ChecklistService checklistService;
+
+    public ChecklistController(ChecklistService checklistService) {
+        this.checklistService = checklistService;
+    }
+
+    @GetMapping("/checklists")
+    public ResponseEntity<UserChecklistsPreviewResponse> readUserChecklistsPreview() {
+        User user = new User(1L, "방방이");
+        return ResponseEntity.ok(checklistService.readUserChecklistsPreview(user));
+    }
+
+    @GetMapping("/checklists/comparison")
+    public ResponseEntity<ChecklistsWithScoreReadResponse> readChecklistsComparison(@RequestParam("id") List<Long> checklistIds) {
+        return ResponseEntity.ok(checklistService.readChecklistsComparison(checklistIds));
+    }
+}

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/ChecklistCreateRequest.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/request/ChecklistCreateRequest.java

@@ -1,5 +1,6 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.request;
 
+import com.bang_ggood.checklist.dto.ChecklistInfo;
 import com.bang_ggood.room.domain.Room;
 import com.bang_ggood.room.dto.RoomCreateRequest;
 import jakarta.validation.Valid;

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/QuestionCreateRequest.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/request/QuestionCreateRequest.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.request;
 
 import jakarta.validation.constraints.NotNull;
 

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/BadgeResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/BadgeResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 import com.bang_ggood.category.domain.Badge;
 

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/CategoryScoreReadResponse.java

@@ -0,0 +1,12 @@
+package com.bang_ggood.checklist.dto.response;
+
+import com.bang_ggood.category.domain.Category;
+
+public record CategoryScoreReadResponse(
+        Integer categoryId, String categoryName, Integer score
+) {
+
+    public static CategoryScoreReadResponse of(Category category, int score) {
+        return new CategoryScoreReadResponse(category.getId(), category.getName(), score);
+    }
+}

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/ChecklistQuestionsResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/ChecklistQuestionsResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 import com.bang_ggood.category.dto.CategoryQuestionsResponse;
 import java.util.List;

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/ChecklistComparisonReadResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/ChecklistWithScoreReadResponse.java

@@ -1,17 +1,17 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 import com.bang_ggood.checklist.domain.Checklist;
 import java.util.List;
 
-public record ChecklistComparisonReadResponse(
+public record ChecklistWithScoreReadResponse(
         Long checklistId, String roomName, String address,
         Integer floor, Integer deposit, Integer rent,
         Integer contractTerm, String station, Integer walkingTime,
         Integer optionCount, Integer score,
         List<CategoryScoreReadResponse> categories
 ) {
-    public static ChecklistComparisonReadResponse of(Checklist checklist, int checklistOptionCount, int checklistScore, List<CategoryScoreReadResponse> categoryScores) {
-        return new ChecklistComparisonReadResponse(
+    public static ChecklistWithScoreReadResponse of(Checklist checklist, int checklistOptionCount, int checklistScore, List<CategoryScoreReadResponse> categoryScores) {
+        return new ChecklistWithScoreReadResponse(
                 checklist.getId(),
                 checklist.getRoomName(),
                 checklist.getRoomAddress(),

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/ChecklistsWithScoreReadResponse.java

@@ -0,0 +1,6 @@
+package com.bang_ggood.checklist.dto.response;
+
+import java.util.List;
+
+public record ChecklistsWithScoreReadResponse(List<ChecklistWithScoreReadResponse> checklists) {
+}

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/QuestionResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/QuestionResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 public record QuestionResponse(Integer questionId, String title, String subtitle) {
 }

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/UserChecklistPreviewResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/UserChecklistPreviewResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 import com.bang_ggood.checklist.domain.Checklist;
 import java.time.LocalDateTime;

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/UserChecklistsPreviewResponse.java

@@ -0,0 +1,7 @@
+package com.bang_ggood.checklist.dto.response;
+
+import com.bang_ggood.checklist.dto.response.UserChecklistPreviewResponse;
+import java.util.List;
+
+public record UserChecklistsPreviewResponse(List<UserChecklistPreviewResponse> checklists) {
+}

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/WrittenChecklistResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/WrittenChecklistResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 import com.bang_ggood.category.dto.WrittenCategoryQuestionsResponse;
 import com.bang_ggood.room.dto.WrittenRoomResponse;

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/WrittenQuestionResponse.java → backend/bang-ggood/src/main/java/com/bang_ggood/checklist/dto/response/WrittenQuestionResponse.java

@@ -1,4 +1,4 @@
-package com.bang_ggood.checklist.dto;
+package com.bang_ggood.checklist.dto.response;
 
 public record WrittenQuestionResponse(Integer questionId, String title, String subtitle, String answer) {
 }

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/repository/ChecklistRepository.java

@@ -4,12 +4,10 @@
 import com.bang_ggood.exception.BangggoodException;
 import com.bang_ggood.exception.ExceptionCode;
 import com.bang_ggood.user.domain.User;
-
-import java.util.Optional;
-import java.util.List;
-
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
+import java.util.List;
+import java.util.Optional;
 
 public interface ChecklistRepository extends JpaRepository<Checklist, Long> {
 
@@ -27,4 +25,6 @@ default Checklist getById(long id) {
     List<Checklist> findByUser(User user);
 
     List<Checklist> findByUserAndIdIn(User user, List<Long> checklistIds);
+
+    long countAllByIdIn(List<Long> ids);
 }

backend/bang-ggood/src/main/java/com/bang_ggood/checklist/service/ChecklistService.java

@@ -0,0 +1,118 @@
+package com.bang_ggood.checklist.service;
+
+import com.bang_ggood.category.domain.Badge;
+import com.bang_ggood.category.domain.Category;
+import com.bang_ggood.checklist.domain.Checklist;
+import com.bang_ggood.checklist.domain.ChecklistQuestion;
+import com.bang_ggood.checklist.domain.ChecklistScore;
+import com.bang_ggood.checklist.dto.response.BadgeResponse;
+import com.bang_ggood.checklist.dto.response.CategoryScoreReadResponse;
+import com.bang_ggood.checklist.dto.response.ChecklistWithScoreReadResponse;
+import com.bang_ggood.checklist.dto.response.ChecklistsWithScoreReadResponse;
+import com.bang_ggood.checklist.dto.response.UserChecklistPreviewResponse;
+import com.bang_ggood.checklist.dto.response.UserChecklistsPreviewResponse;
+import com.bang_ggood.checklist.repository.ChecklistOptionRepository;
+import com.bang_ggood.checklist.repository.ChecklistQuestionRepository;
+import com.bang_ggood.checklist.repository.ChecklistRepository;
+import com.bang_ggood.exception.BangggoodException;
+import com.bang_ggood.exception.ExceptionCode;
+import com.bang_ggood.room.repository.RoomRepository;
+import com.bang_ggood.user.domain.User;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+
+@Service
+public class ChecklistService {
+
+    private final ChecklistRepository checklistRepository;
+    private final RoomRepository roomRepository;
+    private final ChecklistOptionRepository checklistOptionRepository;
+    private final ChecklistQuestionRepository checklistQuestionRepository;
+
+    public ChecklistService(ChecklistRepository checklistRepository, RoomRepository roomRepository,
+                            ChecklistOptionRepository checklistOptionRepository,
+                            ChecklistQuestionRepository checklistQuestionRepository) {
+        this.checklistRepository = checklistRepository;
+        this.roomRepository = roomRepository;
+        this.checklistOptionRepository = checklistOptionRepository;
+        this.checklistQuestionRepository = checklistQuestionRepository;
+    }
+
+    @Transactional
+    public UserChecklistsPreviewResponse readUserChecklistsPreview(User user) {
+        List<Checklist> checklists = checklistRepository.findByUser(user);
+        List<UserChecklistPreviewResponse> responses = checklists.stream()
+                .map(this::getChecklistPreview)
+                .toList();
+
+        return new UserChecklistsPreviewResponse(responses);
+    }
+
+    private UserChecklistPreviewResponse getChecklistPreview(Checklist checklist) {
+        return UserChecklistPreviewResponse.of(checklist, createBadges(checklist.getQuestions()));
+    }
+
+    private List<BadgeResponse> createBadges(List<ChecklistQuestion> questions) {
+        return Arrays.stream(Category.values())
+                .map(category -> category.provideBadge(questions))
+                .filter(badge -> badge != Badge.NONE)
+                .map(BadgeResponse::from)
+                .toList();
+    }
+
+    @Transactional
+    public ChecklistsWithScoreReadResponse readChecklistsComparison(List<Long> checklistIds) {
+        User user = new User(1L, "방끗");
+
+        validateChecklistComparison(checklistIds);
+
+        List<ChecklistWithScoreReadResponse> responses = checklistRepository.findByUserAndIdIn(user, checklistIds)
+                .stream()
+                .map(this::getChecklistWithScore)
+                .sorted(Comparator.comparing(ChecklistWithScoreReadResponse::score).reversed())
+                .toList();
+
+        return new ChecklistsWithScoreReadResponse(responses);
+    }
+
+    private void validateChecklistComparison(List<Long> checklistIds) {
+        validateChecklistComparisonCount(checklistIds);
+        validateChecklist(checklistIds);
+    }
+
+    private void validateChecklistComparisonCount(List<Long> checklistIds) {
+        if (checklistIds.size() > 3) {
+            throw new BangggoodException(ExceptionCode.CHECKLIST_COMPARISON_INVALID_COUNT);
+        }
+    }
+
+    private void validateChecklist(List<Long> checklistIds) {
+        if (checklistRepository.countAllByIdIn(checklistIds) != checklistIds.size()) {
+            throw new BangggoodException(ExceptionCode.CHECKLIST_NOT_FOUND);
+        }
+    }
+
+
+
+    private ChecklistWithScoreReadResponse getChecklistWithScore(Checklist checklist) {
+        List<CategoryScoreReadResponse> categoryScores = getCategoryScores(checklist.getQuestions());
+        int checklistScore = getChecklistScore(checklist.getQuestions());
+        int checklistOptionCount = checklistOptionRepository.countByChecklist(checklist);
+
+        return ChecklistWithScoreReadResponse.of(checklist, checklistOptionCount, checklistScore, categoryScores);
+    }
+
+    private List<CategoryScoreReadResponse> getCategoryScores(List<ChecklistQuestion> questions) {
+        return Arrays.stream(Category.values())
+                .map(category -> CategoryScoreReadResponse.of(category, ChecklistScore.calculateCategoryScore(category, questions)))
+                .filter(response -> response.score() != 0)
+                .toList();
+    }
+
+    private int getChecklistScore(List<ChecklistQuestion> questions) {
+        return ChecklistScore.calculateTotalScore(questions);
+    }
+}

backend/bang-ggood/src/main/java/com/bang_ggood/exception/ExceptionCode.java

@@ -15,8 +15,11 @@ public enum ExceptionCode {
     CATEGORY_PRIORITY_INVALID_COUNT(HttpStatus.BAD_REQUEST, "카테고리 개수가 유효하지 않습니다."),
     CATEGORY_NOT_FOUND(HttpStatus.BAD_REQUEST, "카테코리가 존재하지 않습니다."),
     CATEGORY_DUPLICATED(HttpStatus.BAD_REQUEST, "중복된 카테고리가 존재합니다."),
+    GRADE_INVALID(HttpStatus.BAD_REQUEST, "점수가 유효하지 않습니다."),
+
+    // Checklist
+    CHECKLIST_COMPARISON_INVALID_COUNT(HttpStatus.BAD_REQUEST, "비교할 체크리스트 개수가 유효하지 않습니다."),
     CHECKLIST_NOT_FOUND(HttpStatus.BAD_REQUEST, "체크리스트가 존재하지 않습니다."),
-    GRADE_INVALID(HttpStatus.BAD_REQUEST, "점수가 유효하지 않습니다.")
     ;
 
     private final HttpStatus httpStatus;

backend/bang-ggood/src/main/resources/schema.sql

@@ -54,11 +54,11 @@ CREATE TABLE checklist_option
 CREATE TABLE checklist_question
 (
     id           BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
-    question_id  INTEGER NOT NULL,
+    question    VARCHAR(22) NOT NULL,
     checklist_id BIGINT  NOT NULL,
     created_at   TIMESTAMP(6),
     modified_at  TIMESTAMP(6),
-    answer       VARCHAR(255),
+    grade      VARCHAR(255),
     FOREIGN KEY (checklist_id) REFERENCES checklist (id)
 );