public void PurchaseCourse(UdemyCourse course, Developer developer)
{
var balance = developer.Balance -= course.Price;
//try
//{
//}
//catch (Exception)
//{
// throw;
//}
if (balance < 0)
{
throw new ArgumentException("You do not have enough money to purchase course.");
}
else
{
AddUdemyCourseToList(course);
developer.HasPurchasedCourse = true;
developer.ListOfCourses.Add(course);
}
}
private List <UdemyCourse> AddUdemyCourseToList(UdemyCourse course)
{
if (_udemyMasterCourseList.Contains(course))
{
return(_udemyMasterCourseList);
}
else
{
_udemyMasterCourseList.Add(course);
return(_udemyMasterCourseList);
}
}
