CLAP-244 refactor: 팀 작업 조회 필터링 로직 QueryDSL 리팩토링

Author: nano-mm

src/main/java/clap/server/adapter/outbound/persistense/repository/task/TaskCustomRepositoryImpl.java

@@ -12,7 +12,7 @@
 import com.querydsl.core.types.dsl.DateTimePath;
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import jakarta.persistence.EntityManager;
-import jakarta.persistence.TypedQuery;
+import com.querydsl.core.types.dsl.CaseBuilder;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
@@ -58,27 +58,45 @@ public Page<TaskEntity> findTasksAssignedByManager(Long processorId, Pageable pa
 
     @Override
     public List<TeamMemberTaskResponse> findTeamStatus(Long memberId, FilterTeamStatusRequest filter) {
-        // 1. 담당자 목록을 가져옴 (페이징 제거)
-        List<Long> processorIds = queryFactory
-                .select(taskEntity.processor.memberId)
-                .from(taskEntity)
-                .groupBy(taskEntity.processor.memberId)
-                .orderBy("기여도순".equals(filter.sortBy()) ?
-                        taskEntity.taskId.count().desc() :
-                        taskEntity.processor.nickname.asc())
-                .fetch();
+        BooleanBuilder builder = new BooleanBuilder();
+
+        // 담당자 ID 필터링
+        if (memberId != null) {
+            builder.and(taskEntity.processor.memberId.eq(memberId));
+        }
+
+        // 작업 타이틀 필터링
+        if (filter.taskTitle() != null && !filter.taskTitle().isEmpty()) {
+            builder.and(taskEntity.title.containsIgnoreCase(filter.taskTitle()));
+        }
+
+        // 1차 카테고리 필터링
+        if (!filter.mainCategoryIds().isEmpty()) {
+            builder.and(taskEntity.category.mainCategory.categoryId.in(filter.mainCategoryIds()));
+        }
 
-        if (processorIds.isEmpty()) {
-            return List.of(); // 결과가 없으면 빈 리스트 반환
+        // 2차 카테고리 필터링
+        if (!filter.categoryIds().isEmpty()) {
+            builder.and(taskEntity.category.categoryId.in(filter.categoryIds()));
         }
 
-        // 2. 담당자별 작업 조회 (페이징 제거)
+        // 정렬 조건 적용
+        OrderSpecifier<?> orderBy = "기여도순".equals(filter.sortBy())
+                ? new CaseBuilder()
+                .when(taskEntity.taskStatus.eq(TaskStatus.IN_PROGRESS)
+                        .or(taskEntity.taskStatus.eq(TaskStatus.PENDING_COMPLETED)))
+                .then(1)
+                .otherwise(0)
+                .desc()
+                : taskEntity.processor.nickname.asc();
+
+        // 쿼리 실행
         List<TaskEntity> taskEntities = queryFactory
                 .selectFrom(taskEntity)
-                .where(taskEntity.processor.memberId.in(processorIds))
+                .where(builder)
+                .orderBy(orderBy)
                 .fetch();
 
-        // 3. 담당자별 그룹핑
         return taskEntities.stream()
                 .collect(Collectors.groupingBy(t -> t.getProcessor().getMemberId()))
                 .entrySet().stream()
@@ -111,48 +129,10 @@ public List<TeamMemberTaskResponse> findTeamStatus(Long memberId, FilterTeamStat
                 }).collect(Collectors.toList());
     }
 
-
-
-    private String buildQueryString(FilterTeamStatusRequest filter) {
-        StringBuilder queryStr = new StringBuilder("SELECT t FROM TaskEntity t " +
-                "JOIN FETCH t.processor p " +
-                "WHERE (:memberId IS NULL OR p.memberId = :memberId) ");
-
-        if (!filter.taskTitle().isEmpty()) {
-            queryStr.append("AND t.title LIKE :title ");
-        }
-        if (!filter.mainCategoryIds().isEmpty()) {
-            queryStr.append("AND t.category.mainCategory.id IN :mainCategories ");
-        }
-        if (!filter.categoryIds().isEmpty()) {
-            queryStr.append("AND t.category.id IN :categories ");
-        }
-
-        if ("기여도순".equals(filter.sortBy())) {
-            queryStr.append("ORDER BY (SELECT COUNT(te) FROM TaskEntity te WHERE te.processor = p AND te.taskStatus IN ('IN_PROGRESS', 'PENDING_COMPLETED')) DESC");
-        } else {
-            queryStr.append("ORDER BY p.nickname ASC");
-        }
-
-        return queryStr.toString();
-    }
-
     private boolean isValidTitle(FilterTeamStatusRequest filter) {
         return filter.taskTitle() != null && !filter.taskTitle().isEmpty();
     }
 
-    private void setQueryParameters(TypedQuery<TaskEntity> query, FilterTeamStatusRequest filter) {
-        if (isValidTitle(filter)) {
-            query.setParameter("title", "%" + filter.taskTitle() + "%");
-        }
-        if (!filter.mainCategoryIds().isEmpty()) {
-            query.setParameter("mainCategories", filter.mainCategoryIds());
-        }
-        if (!filter.categoryIds().isEmpty()) {
-            query.setParameter("categories", filter.categoryIds());
-        }
-    }
-
     @Override
     public Page<TaskEntity> findPendingApprovalTasks(Pageable pageable, FilterTaskListRequest filterTaskListRequest) {
         BooleanBuilder builder = createFilter(filterTaskListRequest);