접속 종료를 그룹에 알림

core/group_memory.go

@@ -523,6 +523,21 @@ func (gm *groupInMemory) UpdateGroupDocument(gid groupID, frag bson.M) error {
 	return nil
 }
 
+func (gm *groupInMemory) MemberDisconnected(room string, mid primitive.ObjectID) {
+	midstr := mid.Hex()
+	deleted, _ := gm.rh.JSONDel(room, "$._members."+midstr)
+	if deleted > 0 {
+		// 퇴장을 알림
+		gm.sendUpstreamMessage(&wshandler.UpstreamMessage{
+			Target: "#" + room,
+			Body: bson.M{
+				midstr: bson.M{},
+			},
+			Tag: []string{"MemberDocFull"},
+		})
+	}
+}
+
 func (cfg *groupConfig) prepareInMemory(ctx context.Context, typename string, sub *subTavern) (group, error) {
 	// group document
 	// member document