public void Start()
{
if (Timer != null)
{
return;
}
Timer = new Timer(state =>
{
var res = Message.Invoke(CurrentTime);
if (OldMessage != null && res?.Length < OldMessage?.Length)
{
ConsoleUtilities.ClearLine(Line, StartAt, OldMessage.Length);
}
ConsoleUtilities.SetTemporaryConsolePosition(() => Console.Write(res), Line, StartAt);
CurrentTime--;
OldMessage = res;
if (CurrentTime < 0)
{
Stop();
}
}, null, TimeSpan.Zero, TimeSpan.FromSeconds(1));
}
public DateTime Draw()
{
while (true)
{
Console.WriteLine($"{Question} ({Parameters.Format})" + (Parameters.DefaultDate != null
? $" [{Parameters.DefaultDate.Value.ToString(Parameters.Format)}]"
: string.Empty));
var input = Console.ReadLine();
if (DateTime.TryParseExact(input, Parameters.Format, null, DateTimeStyles.None, out var dateTime))
{
if (Parameters.CustomValidation != null)
{
var validationResult = Parameters.CustomValidation.Invoke(dateTime);
if (validationResult.IsSuccess)
{
return(dateTime);
}
Console.WriteLine(validationResult.ErrorMessage);
}
else
{
return(dateTime);
}
}
else
{
if (Parameters.DefaultDate != null)
{
ConsoleUtilities.SetTemporaryConsolePosition(() =>
{
Console.WriteLine(Parameters.DefaultValueMessage,
Parameters.DefaultDate.Value.ToString(Parameters.Format));
}, Console.CursorTop - 1, 0);
return(Parameters.DefaultDate.Value);
}
if (!string.IsNullOrEmpty(Parameters.ErrorMessageFormat))
{
Console.WriteLine(Parameters.ErrorMessageFormat, input, Parameters.Format);
}
}
}
}
public void Write(string message, int topOffset = 0)
{
ConsoleUtilities.SetTemporaryConsolePosition(() => Console.Write(message), Top + topOffset, Left);
}
