public virtual Tuple <List <UserId>, List <ITextChatMessage> > JoinRoom(UserId userId, RoomId roomId)
{
var user = ChatModel.GetUser(userId);
// If the room is private and the user has nothing to do here, EXPLODE!
if (roomId.IsPrivate() && !UserIdsInPrivateRoom(roomId).Contains(userId))
{
throw new LogReadyException(LogTag.PrivateRoomIntrusionAttempt, new { userId, roomId });
}
if (!ChatModel.IsInRoom(roomId, user.Id))
{
ChatModel.AddUserToRoom(userId, roomId);
OnUserJoinedRoom?.Invoke(roomId, user.Id);
if (roomId.IsPublic())
{
OnCountOfUsersUpdated?.Invoke(roomId, ChatModel.UsersCountOf(roomId));
}
}
var withVisibilities = new List <MessageVisibility> {
MessageVisibility.Everyone, MessageVisibility.Sender, MessageVisibility.Ephemeral, MessageVisibility.News
};
var customMessageHistory = ChatModel.LatestMessagesIn(roomId, HistoryLength * 2, withVisibilities)
.Where(a => (a.Visibility != MessageVisibility.Sender && a.Visibility != MessageVisibility.Ephemeral) || a.UserId == userId)
.Reverse().Take(HistoryLength).Reverse()
.ToList();
// If in a private room and the partner doesn't want private chat, Signal it with a service message
if (roomId.IsGroup())
{
goto Skip;
}
var partnerId = PartnerInPrivateRoom(roomId, userId);
if (!ChatModel.IsInChat(partnerId))
{
goto Skip;
}
var partner = ChatModel.GetUser(partnerId);
if (partner.IsNoPrivateChat)
{
customMessageHistory.Add(new TextChatMessage {
RoomId = roomId,
Text = JsonConvert.SerializeObject(new { noPrivateChat = ChatModel.GetPublicRoomsFor(partner.Id) }, Formatting.None, new JsonSerializerSettings {
ContractResolver = new CamelCasePropertyNamesContractResolver()
}),
Visibility = MessageVisibility.System
});
}
Skip:
return(new Tuple <List <UserId>, List <ITextChatMessage> >(
ChatModel.UsersInRoom(roomId, user.Id),
customMessageHistory
));
}
public virtual void LeaveRoom(UserId userId, RoomId roomId)
{
ChatModel.RemoveUserFromRoom(userId, roomId);
if (roomId.IsPublic())
{
OnCountOfUsersUpdated?.Invoke(roomId, ChatModel.UsersCountOf(roomId));
}
OnUserLeftRoom?.Invoke(roomId, userId);
}