feat: 그룹 이름 조회 API 추가 (#68)

Author: rokaf6444

src/main/java/com/pictalk/global/payload/status/SuccessStatus.java

@@ -17,6 +17,7 @@ public enum SuccessStatus implements BaseStatus {
     GET_IMAGE_SUCCESS(HttpStatus.OK, "IMAGE_200", "이미지가 성공적으로 조회되었습니다"),
 
     GROUP_CREATED(HttpStatus.CREATED, "GROUP_201", "그룹이 성공적으로 생성되었습니다"),
+    GROUPS_FOUND(HttpStatus.OK, "GROUP_200", "그룹이 성공적으로 조회되었습니다."),
     GROUP_DELETED(HttpStatus.NO_CONTENT, "GROUP_204", "그룹이 성공적으로 삭제되었습니다"),
     GROUP_UPDATED(HttpStatus.OK, "GROUP_200", "그룹 이름 변경이 성공적으로 처리되었습니다."),
     GROUP_RECEIVER_ADDED(HttpStatus.CREATED, "GR_RC_201", "그룹 멤버 추가가 성공적으로 처리되었습니다."),

src/main/java/com/pictalk/group/controller/GroupController.java

@@ -5,19 +5,17 @@
 import com.pictalk.group.domain.Group;
 import com.pictalk.group.dto.GroupRequestDto.CreateGroupRequest;
 import com.pictalk.group.dto.GroupRequestDto.UpdateGroupRequest;
+import com.pictalk.group.dto.GroupResponseDto;
 import com.pictalk.group.dto.GroupResponseDto.CreateGroupResponse;
 import com.pictalk.group.service.GroupService;
 import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
-import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.bind.annotation.PatchMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.stream.Collectors;
 
 @RestController
 @RequiredArgsConstructor
@@ -51,4 +49,20 @@ public CommonResponse<Object> updateGroup(@PathVariable("group_id") Long groupId
         groupService.updateGroup(groupId, updateGroupRequest);
         return CommonResponse.of(SuccessStatus.GROUP_UPDATED, null);
     }
+
+    @Operation(summary = "그룹 조회")
+    @GetMapping
+    public CommonResponse<List<GroupResponseDto.SearchGroupResponse>> getGroups(@AuthenticationPrincipal UserDetails authenticatedPrincipal) {
+        String userEmail = authenticatedPrincipal.getUsername();
+        List<Group> groups = groupService.getAllGroupsByUser(userEmail);
+
+        List<GroupResponseDto.SearchGroupResponse> response = groups.stream()
+                .map(group -> GroupResponseDto.SearchGroupResponse.builder()
+                        .groupId(group.getId())
+                        .groupName(group.getName())
+                        .build())
+                .collect(Collectors.toList());
+
+        return CommonResponse.of(SuccessStatus.GROUPS_FOUND, response);
+    }
 }

src/main/java/com/pictalk/group/service/GroupService.java

@@ -40,8 +40,7 @@ public void deleteGroup(Long groupId) {
         group.softDelete();
     }
 
-
-    public List<Group> getAllGroupByUser(String userEmail) {
+    public List<Group> getAllGroupsByUser(String userEmail) {
         User user = userRepository.findByEmail(userEmail)
                 .orElseThrow(() -> new GeneralException(ErrorStatus.USER_NOT_FOUND));
         return groupRepository.findAllByUser(user);