//Should probably not use garagehandler in UI be and also
//maybe fetch minLength,maxlength from Vehicle class
public static string AskForRegistrationNumber(GarageHandler garageHandler)
{
bool regNrExists;
string regNo = "";
do
{
regNrExists = false;
regNo = AskForString("Enter a registrationnumber", minLength: 5, maxLength: 8);
if (garageHandler.Contains(regNo))
{
regNrExists = true;
Console.WriteLine($"RegistrationNumber {regNo} already exists in Garage");
}
} while (regNrExists);
return(regNo);
}