getNextMessage function
Implementation
Future<Map?> getNextMessage(
MessageType messageType, conversationId, timestamp) async {
// QuerySnapshot q = await colCONVERSATIONS
// .doc(conversationId)
// .collection(kCollectionMESSAGES)
// .where(kDbmessageType, isEqualTo: messageType.index)
// .where(kDbtimestamp, isGreaterThan: timestamp)
// .limit(1)
// .get();
// if (q.size != 0) {
// return q.docs.single.data() as Map;
// }
return null;
}