feat: 내가 참여한 미팅 목록 조회 (#19)

services/meetingService.js

@@ -341,6 +341,74 @@ class MeetingService {
         };
     }
 
+    async getMyMeetings(userId, pagination) {
+        const { limit = 20, offset = 0 } = pagination;
+    
+        const meetings = await Meeting.findAll({
+            attributes: [
+                'id',
+                'title',
+                'description',
+                'time_idx_start',
+                'time_idx_end',
+                'location',
+                'time_idx_deadline',
+                'type',
+                'max_num',
+                'cur_num',
+            ],
+            include: [
+                {
+                    model: MeetingParticipant,
+                    as: 'participants',
+                    where: { user_id: userId }, 
+                    attributes: [],
+                },
+                {
+                    model: User,
+                    as: 'creator',
+                    attributes: ['name'],
+                }
+            ],
+            where: {
+                [Op.or]: [
+                    { created_by: userId },  
+                    { '$participants.user_id$': userId }  
+                ]
+            },
+            order: [['createdAt', 'DESC']],
+            offset
+        });
+    
+        const hasNext = meetings.length > limit;
+        const content = await Promise.all(
+            meetings.slice(0, limit).map(async (meeting) => {
+                const isParticipant = await MeetingParticipant.findOne({
+                    where: {
+                        meeting_id: meeting.id,
+                        user_id: userId
+                    }
+                });
+    
+                const hasConflict = await ScheduleService.checkScheduleOverlapByTime(
+                    userId,
+                    meeting.time_idx_start,
+                    meeting.time_idx_end
+                );
+    
+                const creatorName = meeting.creator ? meeting.creator.name : 'Unknown';
+                return new MeetingResponseDTO(meeting, !!isParticipant, hasConflict, creatorName);
+            })
+        );
+    
+        return {
+            content,
+            hasNext
+        };
+    }
+
+    
+
   
     async closeMeeting(meetingId) {
         const meeting = await Meeting.findByPk(meetingId);