void connectUserToATC(User user, Connection connection)
{
string atcID = connection.destinationNumber[0].ToString() + connection.destinationNumber[1].ToString();
ATC atc = connectedATCs.Find(x => x.id == atcID);
if (atc == null)
{
log($"User {user.id} requested ATC {ATCNameService.GetName(atcID)} ({atcID}) that is not connected to the ATC.");
foreach (ATC anotherATC in connectedATCs)
{
log($"Requested ATC {anotherATC.name} to connect user {user.id} to ATC {ATCNameService.GetName(atcID)} ({atcID}).");
anotherATC.connectUserToATC(user, connection);
}
}
else
{
string existingConnectionID = ATC.FindExistingConnectionID(this.id, connection, atc, this.id);
if (existingConnectionID != null)
{
atc.handleIncomingConnection(existingConnectionID, this, getUserId(connection.destinationNumber), connection.id, user.GlobalID);
log($"Connected User {user.id} to ATC {ATCNameService.GetName(atcID)} ({atcID}). Connection ID: {connection.id}");
}
else
{
string connectionID = atc.handleIncomingConnection(this, getUserId(connection.destinationNumber), connection.id, user.GlobalID);
connection.ConnectATC(atc, connectionID);
log($"Connected User {user.id} to ATC {ATCNameService.GetName(atcID)} ({atcID}). Connection ID: {connection.id}");
}
}
}
void handleIncomingBusyOffline(Signal signal, Connection connection, string atcID)
{
string sourceAtcID = getATCid(signal.sender.id);
ATC atcToRemove = connection.connectedATCs.Keys.ToList().Find(a => a.id == sourceAtcID);
if (atcToRemove != null)
{
connection.connectedATCs.Remove(atcToRemove);
log($"Removed ATC {atcToRemove.name} from connection {connection.id}.");
}
Signal busyOfflineSignal = new Signal((Transmitter)this, signal.type, $"{ATCNameService.GetName(sourceAtcID)} ({sourceAtcID})");
Signal cancelSignal = new Signal((Transmitter)this, SignalType.cancel, $"{ATCNameService.GetName(sourceAtcID)} ({sourceAtcID})");
foreach (User user in connection.users)
{
user.handle(busyOfflineSignal);
user.handle(cancelSignal);
log($"Sended User {user.id} a cancel signal. Connection ID: {connection.id}.");
}
foreach (ATC connectedATC in connection.connectedATCs.Keys)
{
connectedATC.handleSignalFromATC(signal, this.id, connection.connectedATCs[connectedATC]);
log($"Sended ATC {connectedATC.name} a cancel signal. Connection ID: {connection.id}.");
}
if (connection.users.Count + connection.connectedATCs.Keys.Count == 1)
{
Signal connectionClosedSignal = new Signal((Transmitter)this, SignalType.tone, "Connection closed.");
if (connection.users.Count == 1)
{
User lastUser = connection.users.First();
lastUser.handle(connectionClosedSignal);
log($"Sended User {lastUser.id} a tone signal. Connection ID: {connection.id}. Connection Closed.");
}
else
{
ATC lastATC = connection.connectedATCs.Keys.First();
lastATC.handleSignalFromATC(connectionClosedSignal, this.id, connection.connectedATCs[lastATC]);
log($"Sended ATC {lastATC.name} a tone signal. Connection ID: {connection.id}. Connection Closed.");
}
connections.Remove(connection);
connectionsChanged();
}
}
public static bool Save(string atcName, string id)
{
Dictionary <string, string> ATCNameServiceDataBase = ATCNameService.Load();
if (ATCNameServiceDataBase == null)
{
ATCNameServiceDataBase = new Dictionary <string, string>();
}
ATCNameServiceDataBase[id] = atcName;
BinaryFormatter bf = new BinaryFormatter();
FileStream fsout = new FileStream($"ANS.dat", FileMode.Create, FileAccess.Write, FileShare.None);
try
{
using (fsout)
{
bf.Serialize(fsout, ATCNameServiceDataBase);
return(true);
}
}
catch (Exception err)
{
Console.WriteLine("Error occured:" + err.Message);
return(false);
}
finally
{
if (fsout != null)
{
fsout.Close();
}
}
}
void handleCancel(Signal signal, Connection connection, string atcID)
{
if (connection.status == ConnectionStatus.TryingToAddAnotherUser && signal.sender is User)
{
connection.status = ConnectionStatus.TryingToAddAnotherUser;
connection.destinationNumber = "";
(signal.sender as User).handle(new Signal((Transmitter)this, SignalType.tone, $"Destination number cleared."));
if (isGoingToMakeOutgoingCall.ContainsKey(signal.sender.id))
{
isGoingToMakeOutgoingCall.Remove(signal.sender.id);
}
return;
}
string sourceAtcID = "";
if (signal.sender is User)
{
sourceAtcID = getATCid((signal.sender as User).GlobalID);
}
else
{
sourceAtcID = signal.sender.id;
}
bool isSignalLocal = sourceAtcID == this.id;
if (isSignalLocal)
{
connection.users.Remove(signal.sender as User);
log($"Removed User {signal.sender.id} from connection {connection.id}.");
}
else
{
ATC atcToRemove = connection.connectedATCs.Keys.ToList().Find(a => a.id == sourceAtcID);
if (atcToRemove != null)
{
connection.connectedATCs.Remove(atcToRemove);
log($"Removed ATC {atcToRemove.name} from connection {connection.id}.");
}
}
Signal cancelSignal = new Signal((Transmitter)this, SignalType.cancel, isSignalLocal ? signal.sender.id : $"{ATCNameService.GetName(sourceAtcID)} ({sourceAtcID})");
foreach (User user in connection.users)
{
user.handle(cancelSignal);
log($"Sended User {user.id} a cancel signal. Connection ID: {connection.id}.");
}
foreach (ATC connectedATC in connection.connectedATCs.Keys)
{
if (connectedATC.id != atcID)
{
connectedATC.handleSignalFromATC(signal, this.id, connection.connectedATCs[connectedATC]);
log($"Sended ATC {connectedATC.name} a cancel signal. Connection ID: {connection.id}.");
}
}
if (connection.users.Count + connection.connectedATCs.Keys.Count == 1)
{
Signal connectionClosedSignal = new Signal((Transmitter)this, SignalType.tone, "Connection closed.");
if (connection.users.Count == 1)
{
User lastUser = connection.users.First();
lastUser.handle(connectionClosedSignal);
log($"Sended User {lastUser.id} a tone signal. Connection ID: {connection.id}. Connection Closed.");
}
else
{
ATC lastATC = connection.connectedATCs.Keys.First();
if (lastATC.id != atcID)
{
lastATC.handleSignalFromATC(connectionClosedSignal, this.id, connection.connectedATCs[lastATC]);
log($"Sended ATC {lastATC.name} a tone signal. Connection ID: {connection.id}. Connection Closed.");
}
}
connections.Remove(connection);
connectionsChanged();
}
}
public ATC(string id, string name) : base(id)
{
ATCNameService.Save(name, id);
}
