public Contract RegisterContract(Subscriber subscriber, Tariff tariff)
{
int telephoneNumber;
do
{
telephoneNumber = _random.Next(1000000, 9999999);
} while (_billingSystem.UsersData.ContainsKey(telephoneNumber));
var port = new Port(telephoneNumber);
var terminal = new Terminal(port);
var contract = new Contract(port, terminal, subscriber, tariff);
RegisterUserEvent?.Invoke(this, contract);
return(contract);
}
public static void RegisterUserEventCall(FirebaseUser user, string name)
{
RegisterUserEvent.Invoke(user, name);
}