addMember method
void
addMember(- Member? newMember
)
Implementation
void addMember(Member? newMember) {
if (newMember == null) return;
removeMember(newMember.userId);
members.add(newMember);
members.sort((a, b) => a.nickname.compareTo(b.nickname));
final ts = DateTime.now().millisecondsSinceEpoch;
final delivery = DeliveryStatus(
channelUrl: channelUrl,
updatedDeliveryStatus: {newMember.userId: ts},
);
final read = ReadStatus(
channelType: channelType,
channelUrl: channelUrl,
timestamp: ts,
userId: newMember.userId,
);
delivery.saveToCache(chat);
read.saveToCache(chat);
_refreshMemberCounts();
}