fix im forwarding and message list regressions

server/store/group_message_runtime.go

@@ -55,6 +55,7 @@ type groupMessageRuntime interface {
 	Close() error
 	Claim(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string) (*groupMessageUniqueRecord, bool, error)
 	NextSeq(tenantID types.TenantID, topic string, baseline int64) (int64, error)
+	MarkPending(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string, seq int64) error
 	MarkDone(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string, seq int64, msgID string) error
 	MarkFailed(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string) error
 	CacheHotMessage(tenantID types.TenantID, msg *types.Message) error
@@ -111,6 +112,13 @@ func MarkMessageUniqueDone(tenantID types.TenantID, topic string, from types.Uid
 	return groupMsgRuntime.MarkDone(tenantID, topic, from, clientMsgID, seq, msgID)
 }
 
+func MarkMessageUniquePending(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string, seq int64) error {
+	if groupMsgRuntime == nil || !tenantID.IsValid() || topic == "" || from.IsZero() || clientMsgID == "" || seq <= 0 {
+		return nil
+	}
+	return groupMsgRuntime.MarkPending(tenantID, topic, from, clientMsgID, seq)
+}
+
 func MarkMessageUniqueFailed(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string) error {
 	if groupMsgRuntime == nil || !tenantID.IsValid() || topic == "" || from.IsZero() || clientMsgID == "" {
 		return nil
@@ -464,6 +472,15 @@ func (r *redisGroupMessageRuntime) MarkDone(tenantID types.TenantID, topic strin
 	return r.client.Set(context.Background(), r.uniqueKey(tenantID, topic, from, clientMsgID), raw, time.Duration(r.cfg.DoneTTL)*time.Second).Err()
 }
 
+func (r *redisGroupMessageRuntime) MarkPending(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string, seq int64) error {
+	if clientMsgID == "" || seq <= 0 {
+		return nil
+	}
+	rec := &groupMessageUniqueRecord{Status: "pending", Seq: seq, CreatedAt: time.Now().UTC()}
+	raw, _ := json.Marshal(rec)
+	return r.client.Set(context.Background(), r.uniqueKey(tenantID, topic, from, clientMsgID), raw, time.Duration(r.cfg.PendingTTL)*time.Second).Err()
+}
+
 func (r *redisGroupMessageRuntime) MarkFailed(tenantID types.TenantID, topic string, from types.Uid, clientMsgID string) error {
 	if clientMsgID == "" {
 		return nil

server/store/group_message_runtime_test.go

@@ -49,6 +49,12 @@ func (r *testGroupMessageRuntime) MarkDone(_ types.TenantID, topic string, from
 	return nil
 }
 
+func (r *testGroupMessageRuntime) MarkPending(_ types.TenantID, topic string, from types.Uid, clientMsgID string, seq int64) error {
+	key := topic + ":" + from.UserId() + ":" + clientMsgID
+	r.claims[key] = &groupMessageUniqueRecord{Status: "pending", Seq: seq, CreatedAt: time.Now().UTC()}
+	return nil
+}
+
 func (r *testGroupMessageRuntime) MarkFailed(_ types.TenantID, topic string, from types.Uid, clientMsgID string) error {
 	key := topic + ":" + from.UserId() + ":" + clientMsgID
 	r.claims[key] = &groupMessageUniqueRecord{Status: "failed", CreatedAt: time.Now().UTC()}

server/store/types/types.go

@@ -1269,6 +1269,7 @@ type MessageSaveResult struct {
 	SeqId              int64
 	MarkedReadBySender bool
 	Duplicate          bool
+	Pending            bool
 }
 
 // Range is a range of message SeqIDs. Low end is inclusive (closed), high end is exclusive (open): [Low, Hi).