public ChatService()
{
_sessions = new Dictionary <Guid, IChatResult>();
_sessionDetails = new Dictionary <Guid, string[]>();
_clients = new Dictionary <string, IChatResult>(StringComparer.OrdinalIgnoreCase);
List <string> clients = ChatDBAccess.GetAllUsers();
foreach (string client in clients)
{
_clients.Add(client, null);
}
}
public bool SendMessage(Guid session, string text)
{
try
{
//Reciever still online
if (_sessions.ContainsKey(session))
{
string sender = _sessionDetails[session][0];
string reciever = _sessionDetails[session][1];
Message message = new Message()
{
Receiver = _sessionDetails[session][1],
Sender = _sessionDetails[session][0],
SentTime = DateTime.Now,
Text = text
};
ChatDBAccess.AddMessage(message);
Report($"Message fron {sender} to {reciever} added to DB", LogLevel.Information);
SendMessagesListToClient(sender, reciever);
SendMessagesListToClient(reciever, sender);
Report($"Message recieved by {reciever}", LogLevel.Information);
return(true);
}
//Reciever offline
{
Report($"Message was not recieved - reciever offline", LogLevel.Warning);
return(false);
}
}
catch (Exception e)
{
Report($"Message was not sent", LogLevel.Exception);
Report(e.Message, LogLevel.Exception);
return(false);
}
}
public bool Register(string userName, string password)
//Add user to DB and log in
{
try
{
if (ChatDBAccess.AddUser(userName, password))
{
Report($"User {userName} added to DB", LogLevel.Information);
_clients.Add(userName, null);
Login(userName, password);
return(true);
}
else
{
Report($"User {userName} already exists in DB. Please choose another name", LogLevel.Information);
return(false);
}
}
catch (Exception e)
{
Report(e.Message, LogLevel.Exception);
return(false);
}
}
private void SendMessagesListToClient(string sender, string reciever)
{
List <Message> messages = ChatDBAccess.GetListOfMessages(sender, reciever);
_clients[sender].GetMessageList(messages, reciever);
}
