/// <summary>
/// Returns a rented truck and calculate the costs of the rental.
/// Only rented trucks can be returned.
/// </summary>
/// <param name="returnDate">The date on which the truck is returned.</param>
/// <param name="kilometers">The total number of kilometers on the counter.</param>
/// <returns>The cost of the rental,
/// or a number less than zero when:
/// - the truck was not rented (so it could not be returned)
/// - the return date is before the rental date (so wrong return date was entered)
/// - the number of kilometers when returned is less then at the start of the rental.
/// Please note that returning as number less than zero for error situations is NOT(!!!)
/// clean coding in this case. Later on you will learn to do this in a better fashion (Exceptions!)
/// </returns>
public decimal Return(SimpleDate returnDate, int kilometers)
{
if (!IsAvailable)
{
int daysRented = RentalDate.DaysDifference(returnDate);
int kilometersDriven = kilometers - Kilometers;
if (daysRented >= 0 && kilometersDriven >= 0)
{
RentalDate = null; // makes the truck available for renting again
Kilometers = kilometers; // update kms for the next rental
return(CalculateRentalCosts(daysRented, kilometersDriven));
}
}
return(-1);
}
public Rental()
{
RentalDate = DateTime.Now;
DueDate = RentalDate.AddDays(7);
ReturnDate = DateTime.Now;
}
public string GetDetails()
//returns more info about the car including rental dates,dates are formated to short date format
{
return(string.Format("Make of Car: {0}" + "\r\n Model: {1}" + "\r\n Size: {2}" + "\r\n RentalDate: {3}" + "\r\n ReturnDate: {4}", Make, Model, Size, RentalDate.ToShortDateString(), ReturnDate.ToShortDateString()));
}
public override string ToString()
{
return(string.Format("BookRental: {{ PrimaryKey: \"{0}\", RentalDate: \"{1}\", RentalDueDate: \"{2}\", RentalReturnDate: \"{3}\", User: \"{4}\" }}",
PrimaryKey, RentalDate.ToShortDateString(), RentalDueDate.ToShortDateString(), RentalReturnDate.ToShortDateString(), User.PrimaryKey));
}
public override string ToString()
{
return(ID.ToString() + "; " + Customer.Name + " " + Customer.Surname + "; " + RentalDate.ToString());
}
