internal string CheckDateFormat(string input, string message)
{
    string format = "MM/dd/yyyy";
    CultureInfo culture = CultureInfo.InvariantCulture;
    DateTimeStyles style = DateTimeStyles.None;
    DateTimeOffset result;

    try
    {
        while (!DateTimeOffset.TryParseExact(input, format, culture, style, out result))
        {
            Console.WriteLine("Invalid Date Input! Try Again!");
            Console.Write(message);
            input = Console.ReadLine();
        }
        return result.ToString("MM/dd/yyyy");
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Error: {ex.Message}");
        return null;
    }
}

internal string CheckTimeFormat(string input, string message)
{
    string format = "hhmm";
    CultureInfo culture = CultureInfo.InvariantCulture;
    TimeSpanStyles style = TimeSpanStyles.None;
    TimeSpan result;

    try
    {
        while (!TimeSpan.TryParseExact(input, format, culture, style, out result))
        {
            Console.WriteLine("Invalid Time Input! Try Again!");
            Console.Write(message);
            input = Console.ReadLine();
        }

        return result.ToString();
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Error: {ex.Message}");
        return null;
    }
}

internal int CheckIntegerInput(string input, string message)
{
    CultureInfo culture = CultureInfo.InvariantCulture;
    int result;

    try
    {
        while(!int.TryParse(input, culture, out result))
        {
            Console.WriteLine("Invalid Number Format! Try Again!");
            Console.Write(message);
            input = Console.ReadLine();
        }

        return result;
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Error: {ex.Message}");
        return 0;
    }
}

internal double CheckDoubleInput(string input, string message)
{
    CultureInfo culture = CultureInfo.InvariantCulture;
    double result;

    try
    {
        while (!double.TryParse(input, culture, out result))
        {
            Console.WriteLine("Invalid Number Format! Try Again!");
            Console.Write(message);
            input = Console.ReadLine();
        }

        return result;
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Error: {ex.Message}");
        return 0.00f;
    }
}