private static bool BookAvailable(long bookTumbleNumber)
{
bool available = true;
FileHandler file = new FileHandler();
file.FileName = "EMPRESTIMO.csv";
if (FileHandlerController.CreateDirectoryAndFile(file))
{
available = true;
}
else
{
List <BookLoan> loanedsBooks = ConvertFileToList();
if (loanedsBooks.Count > 0)
{
for (int i = (loanedsBooks.Count - 1); i >= 0; i--)
{
if (loanedsBooks[i].TumbleNumber == bookTumbleNumber)
{
if (loanedsBooks[i].LoanStatus == 1)
{
available = false;
break;
}
}
}
}
}
return(available);
}
private static bool BookExists(string bookISBN)
{
bool exists = false;
FileHandler file = new FileHandler();
file.FileName = "LIVRO.csv";
if (FileHandlerController.CreateDirectoryAndFile(file))
{
exists = false;
}
else
{
List <Book> books = ConvertFileToList();
for (int i = 0; i < books.Count; i++)
{
if (books[i].ISBN.Equals(bookISBN))
{
exists = true;
break;
}
}
}
return(exists);
}
private static bool CustomerExists(string customerCpf)
{
bool exists = false;
FileHandler file = new FileHandler();
file.FileName = "CLIENTE.csv";
if (FileHandlerController.CreateDirectoryAndFile(file))
{
exists = false;
}
else
{
List <Customer> customers = ConvertFileToList();
for (int i = 0; i < customers.Count; i++)
{
if (customers[i].Cpf.Equals(customerCpf))
{
exists = true;
break;
}
}
}
return(exists);
}
public static bool BookExists(long bookTumbleNumber)
{
bool exists = false;
FileHandler file = new FileHandler();
file.FileName = "LIVRO.csv";
if (FileHandlerController.CreateDirectoryAndFile(file))
{
exists = false;
}
else
{
List <Book> books = ConvertFileToList();
for (int i = 0; i < books.Count; i++)
{
if (books[i].TumbleNumber == bookTumbleNumber)
{
exists = true;
break;
}
}
}
return(exists);
}
public static long CustomerExistsAndReturnId(string customerCpf)
{
long idCustomer = 0;
FileHandler file = new FileHandler();
file.FileName = "CLIENTE.csv";
if (FileHandlerController.CreateDirectoryAndFile(file))
{
idCustomer = 0;
}
else
{
List <Customer> customers = ConvertFileToList();
for (int i = 0; i < customers.Count; i++)
{
if (customers[i].Cpf.Equals(customerCpf))
{
idCustomer = customers[i].IdCustomer;
break;
}
}
}
return(idCustomer);
}