feat: Waku v2 bridge

Issue #12610

vendor/github.com/status-im/status-go/protocol/peersyncing/sync_message.go

@@ -0,0 +1,30 @@
+package peersyncing
+
+import "errors"
+
+type SyncMessageType int
+
+type SyncMessage struct {
+	ID        []byte
+	Type      SyncMessageType
+	GroupID   []byte
+	Payload   []byte
+	Timestamp uint64
+}
+
+var ErrSyncMessageNotValid = errors.New("sync message not valid")
+
+func (s *SyncMessage) Valid() error {
+	valid := len(s.ID) != 0 && s.Type != SyncMessageNoType && len(s.GroupID) != 0 && len(s.Payload) != 0 && s.Timestamp != 0
+	if !valid {
+		return ErrSyncMessageNotValid
+	}
+	return nil
+}
+
+const (
+	SyncMessageNoType SyncMessageType = iota
+	SyncMessageCommunityType
+	SyncMessageOneToOneType
+	SyncMessagePrivateGroup
+)