public async Task <IActionResult> RetractAmount(CustomerVoucher customerVoucher)
{
var model = await _context.CustomerVouchers.Include(x => x.Customer)
.Include(x => x.MerchantVoucher)
.FirstOrDefaultAsync(m => m.Id == customerVoucher.Id);
if (ModelState.IsValid)
{
var currentVoucher = _context.CustomerVouchers.FirstOrDefault(x => customerVoucher.Id == x.Id);
if (customerVoucher != null && currentVoucher != null)
{
if (currentVoucher.Price < customerVoucher.Price || customerVoucher.Price < 0)
{
ModelState.AddModelError(String.Empty, "Bedrag kan niet hoger zijn dan huidige waarde.");
return(View("Details", model));
}
var newPrice = currentVoucher.Price - customerVoucher.Price;
_voucherService.UpdatePrice(customerVoucher.Id, newPrice);
return(RedirectToAction("Details", "CustomerVoucher", new { id = customerVoucher.Id }));
}
}
return(View("Details", model));
}