private MessageRecipient AddUser(string userId, string userName)
{
var user = new MessageRecipient();
user.messageRecipientId = userId;
user.messageRecipientName = userName;
user.connectionId = Context.ConnectionId;
_chatUsers[userId] = user;
return user;
}
private Boolean CheckIfRoomExists(MessageRecipient fromUser, MessageRecipient toUser)
{
foreach (string chatRoomId in fromUser.chatRoomIds)
{
Int32 count = (from mr in _chatRooms[chatRoomId].messageRecipients
where mr.messageRecipientId == toUser.messageRecipientId
select mr).Count();
if (count > 0)
{
return true;
}
}
foreach (string chatRoomId in toUser.chatRoomIds)
{
Int32 count = (from mr in _chatRooms[chatRoomId].messageRecipients
where mr.messageRecipientId == fromUser.messageRecipientId
select mr).Count();
if (count > 0)
{
return true;
}
}
return false;
}
public bool EndChat(ChatMessage chatMessage)
{
try
{
ChatRoom chatRoom;
if (_chatRooms.TryGetValue(chatMessage.conversationId, out chatRoom))
{
if (_chatRooms[chatRoom.chatRoomId].chatRoomInitiatedBy == chatMessage.senderId)
{
chatMessage.messageText = string.Format("{0} left the chat. Chat Ended!", chatMessage.senderName);
if (_chatRooms.TryRemove(chatRoom.chatRoomId, out chatRoom))
{
Clients[chatRoom.chatRoomId].receiveEndChatMessage(chatMessage);
foreach (MessageRecipient messageReceipient in chatRoom.messageRecipients)
{
if (messageReceipient.chatRoomIds.Contains(chatRoom.chatRoomId))
{
messageReceipient.chatRoomIds.Remove(chatRoom.chatRoomId);
Groups.Remove(messageReceipient.connectionId, chatRoom.chatRoomId);
}
}
}
}
else
{
MessageRecipient messageRecipient = GetChatUserByUserId(chatMessage.senderId);
if (messageRecipient != null && messageRecipient.chatRoomIds.Contains(chatRoom.chatRoomId))
{
chatRoom.messageRecipients.Remove(messageRecipient);
messageRecipient.chatRoomIds.Remove(chatRoom.chatRoomId);
if (chatRoom.messageRecipients.Count < 2)
{
chatMessage.messageText = string.Format("{0} left the chat. Chat Ended!", chatMessage.senderName);
if (_chatRooms.TryRemove(chatRoom.chatRoomId, out chatRoom))
{
Clients[chatRoom.chatRoomId].receiveEndChatMessage(chatMessage);
foreach (MessageRecipient messageReceipient in chatRoom.messageRecipients)
{
if (messageReceipient.chatRoomIds.Contains(chatRoom.chatRoomId))
{
messageReceipient.chatRoomIds.Remove(chatRoom.chatRoomId);
Groups.Remove(messageReceipient.connectionId, chatRoom.chatRoomId);
}
}
}
}
else
{
chatMessage.messageText = string.Format("{0} left the chat.", chatMessage.senderName);
Groups.Remove(messageRecipient.connectionId, chatRoom.chatRoomId);
Clients[messageRecipient.connectionId].receiveEndChatMessage(chatMessage);
Clients[chatRoom.chatRoomId].receiveLeftChatMessage(chatMessage);
Clients[chatRoom.chatRoomId].updateChatUI(chatRoom);
}
}
}
}
else
{
throw new InvalidOperationException("Problem in ending chat!");
}
return(true);
}
catch (Exception ex)
{
return(false);
//throw new InvalidOperationException("Problem in ending chat!");
}
}
