public void AddToStock(AbstBook b)
{
if (!IsInStock(b))
{
library.Stock.Add(b);
addEvent("Added to stock book " + b.Id);
}
}
public void RemoveFromStock(AbstBook b)
{
if (IsInStock(b))
{
addEvent("Removed from stock book " + b.Id);
library.Stock.Remove(b);
}
}
public void RemoveFromCatalog(AbstBook b)
{
if (IsInCatalog(b))
{
addEvent("Removed from catalog book " + b.Id);
library.Catalog.Remove(b);
}
}
public void AddToCatalog(AbstBook b)
{
if (!IsInCatalog(b))
{
library.Catalog.Add(b);
addEvent("Added to catalog book " + b.Id);
}
}
public int BookPenalty(AbstBook b)
{
int penalty = 0;
DateTime today = DateTime.Today;
TimeSpan days;
if (DateTime.Compare(today, b.ReturnDate) > 0)
{
days = today - b.ReturnDate;
penalty = days.Days * b.PricePerDayOverduedInCents;
}
return(penalty);
}
public bool AddToBasket(AbstCustomer c, AbstBook b)
{
if (IsCustomer(c) && IsInStock(b))
{
c.Basket.Add(b);
RemoveFromStock(b);
addEvent("Added to basket of " + c.Id + " book " + b.Id);
return(true);
}
else
{
return(false);
}
}
public bool IsInStock(AbstBook b)
{
return(library.Stock.Contains(b) ? true : false);
}
public bool IsInCatalog(AbstBook b)
{
return(library.Catalog.Contains(b) ? true : false);
}