public async Task<Loan> LoanDocument(Loan loan)
{
try
{
var entity = this.ctx.Loans.Add(loan);
await this.ctx.SaveChangesAsync();
return entity;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
public async Task<Loan> SetProperties(ILoanDataService loanDataService, int documentId, int userId, DateTime lentDate)
{
var loan = new Loan()
{
CreateDate = DateTime.Now,
CreateUser = Constants.DefaultUser,
LoanDate = lentDate,
DueData = lentDate.AddDays(Constants.BooksPropertyForLoan.LoanDays),
DocumentId = documentId,
UserId = userId
};
return await loanDataService.LoanDocument(loan);
}
private async Task GetReturnedDate(Loan loan)
{
Console.WriteLine(Display.IntroduzceReturnDate);
var value = Console.ReadLine();
DateTime returnDate;
if(DateTime.TryParse(value, out returnDate))
{
await CheckReturnedWithLoan(loan, returnDate);
}
else
{
Console.WriteLine(Exceptions.DateException);
await GetReturnedDate(loan);
}
}
private async Task HasBookLent(Loan loan)
{
var hasLent = await this.loanService.HasBookLent(user.Id, loan.DocumentId);
if (!hasLent)
{
Console.WriteLine(Exceptions.NotLentBookException);
await GetBookTitle();
}
await GetReturnedDate(loan);
}
private async Task HasFineForReturningLate(Loan loan, DateTime returnDate)
{
if (loan.DueData < returnDate)
{
await this.userService.SetFine(user.Id);
Console.WriteLine(Display.NotReturnOnTime);
await this.fineManager.AskPaidFine();
}
}
private async Task ReturnBookToLibrary(Loan loan, DateTime returnDate)
{
await this.loanService.ReturnBook(loan.DocumentId, returnDate);
Console.WriteLine(Display.BookIsAvailable, loan.Documents.Title);
await HasFineForReturningLate(loan, returnDate);
}
private async Task CheckReturnedWithLoan(Loan loan, DateTime returnDate)
{
if (loan.LoanDate > returnDate)
{
Console.WriteLine(Exceptions.ReturnLoanDateException);
await GetReturnedDate(loan);
}
await ReturnBookToLibrary(loan, returnDate);
}
