private void LoanButton_Click(object sender, EventArgs e)
{
var result = MessageBox.Show("Do you wish to loan this book?", "Loan",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
bool loanedAlready = loanedbll.checkIfLoanedAlready(Login.customer.Username, BooksLb.SelectedItem.ToString());
Book book = null;
if (BooksLb.SelectedItem != null)
{
book = currSubject.SearchBookByName(BooksLb.SelectedItem.ToString());
}
if (book != null)
{
if (result == DialogResult.Yes && book.Copies > 0 &&
Login.customer.Loaned < maxBooks && loanedAlready == false)
{
custbll.updateLoans(Login.customer.Username);
Login.customer.Loaned += 1;
bll.Loan_Book(currSubject.SearchBookByName(BooksLb.SelectedItem.ToString()), Login.customer.Username);
book.Copies -= 1;
printBook(book);
MessageBox.Show("Enjoy! you have 1 week to return the book.");
}
else if (result == DialogResult.Yes && book.Copies == 0)
{
MessageBox.Show("Sorry there are no copies left from this book atm.");
}
else if (result == DialogResult.Yes && Login.customer.Loaned >= maxBooks)
{
MessageBox.Show("Sorry but you already loaned " + maxBooks + " books , return at least 1 first!");
}
else if (loanedAlready)
{
MessageBox.Show("Sorry but you already loaned this book!");
}
}
}