feat: 내 초대장 목록 기능 추가

Author: cherryiJuice

src/main/java/doldol_server/doldol/invite/controller/InviteController.java

@@ -39,6 +39,18 @@ public ApiResponse<InviteResponse> createInvite(
         return ApiResponse.created(inviteService.createInvite(request, userDetails.getUserId()));
     }
 
+    @Operation(
+        summary = "내 초대장 목록 조회",
+        security = {@SecurityRequirement(name = "jwt")}
+    )
+    @GetMapping
+    public ApiResponse<CursorPage<InviteResponse, Long>> getMyInvites(
+        @ParameterObject @Valid CursorPageRequest request,
+        @AuthenticationPrincipal CustomUserDetails userDetails
+    ) {
+        return ApiResponse.ok(inviteService.getMyInvites(userDetails.getUserId(), request));
+    }
+
     @Operation(summary = "초대장 상세 조회")
     @GetMapping("/{inviteCode}")
     public ApiResponse<InviteResponse> getInvite(@PathVariable String inviteCode) {

src/main/java/doldol_server/doldol/invite/repository/InviteRepository.java

@@ -1,12 +1,13 @@
 package doldol_server.doldol.invite.repository;
 
 import doldol_server.doldol.invite.entity.Invite;
+import doldol_server.doldol.invite.repository.custom.InviteRepositoryCustom;
 import org.springframework.data.jpa.repository.EntityGraph;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Optional;
 
-public interface InviteRepository extends JpaRepository<Invite, Long> {
+public interface InviteRepository extends JpaRepository<Invite, Long>, InviteRepositoryCustom {
 
     @EntityGraph(attributePaths = {"comments"})
     Optional<Invite> findWithCommentsByInviteCode(String inviteCode);

src/main/java/doldol_server/doldol/invite/repository/custom/InviteRepositoryCustom.java

@@ -0,0 +1,12 @@
+package doldol_server.doldol.invite.repository.custom;
+
+import doldol_server.doldol.common.request.CursorPageRequest;
+import doldol_server.doldol.invite.dto.response.InviteResponse;
+
+import java.util.List;
+
+public interface InviteRepositoryCustom {
+
+    List<InviteResponse> findInvitesByUserId(Long userId, CursorPageRequest request);
+}
+

src/main/java/doldol_server/doldol/invite/repository/custom/InviteRepositoryCustomImpl.java

@@ -0,0 +1,42 @@
+package doldol_server.doldol.invite.repository.custom;
+
+import com.querydsl.core.types.dsl.BooleanExpression;
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import doldol_server.doldol.common.request.CursorPageRequest;
+import doldol_server.doldol.invite.dto.response.InviteResponse;
+import doldol_server.doldol.invite.entity.Invite;
+import doldol_server.doldol.invite.entity.QInvite;
+import lombok.RequiredArgsConstructor;
+
+import java.util.List;
+
+@RequiredArgsConstructor
+public class InviteRepositoryCustomImpl implements InviteRepositoryCustom {
+
+    private final JPAQueryFactory queryFactory;
+
+    @Override
+    public List<InviteResponse> findInvitesByUserId(Long userId, CursorPageRequest request) {
+        QInvite invite = QInvite.invite;
+
+        BooleanExpression cursorCondition = null;
+        if (request.cursorId() != null) {
+            cursorCondition = invite.inviteId.lt(request.cursorId());
+        }
+
+        List<Invite> invites = queryFactory
+            .selectFrom(invite)
+            .where(
+                invite.user.id.eq(userId),
+                cursorCondition
+            )
+            .orderBy(invite.inviteId.desc())
+            .limit(request.size() + 1L)
+            .fetch();
+
+        return invites.stream()
+            .map(InviteResponse::from)
+            .toList();
+    }
+}
+

src/main/java/doldol_server/doldol/invite/service/InviteService.java

@@ -117,5 +117,11 @@ public void deleteInvite(String inviteCode, Long userId) {
 
         inviteRepository.delete(invite);
     }
+
+    @Transactional(readOnly = true)
+    public CursorPage<InviteResponse, Long> getMyInvites(Long userId, CursorPageRequest request) {
+        List<InviteResponse> invites = inviteRepository.findInvitesByUserId(userId, request);
+        return CursorPage.of(invites, request.size(), InviteResponse::getInviteId);
+    }
 }