public function PaymentInfo()
 {
     if (Auth::check()) {
         if (Auth::user()->default_info_id == NULL) {
             $address = "";
         } else {
             $address = CustomerInfo::getAddressInfo(Auth::user()->default_info_id);
         }
     }
     return view("pages.payment_info", compact("address"));
 }
 public function BillDetail($bill_id)
 {
     if (Auth::check()) {
         $billInfo = Bill::find($bill_id);
         if ($billInfo->customer_id == Auth::user()->id) {
             $customerInfo = CustomerInfo::getAddressInfo($billInfo->customer_info_id);
             $billDetail = billDetail::getProducts($bill_id);
             return view("pages.finish_purchase", compact("billInfo", "customerInfo", "billDetail"));
         } else {
             return redirect()->route("home");
         }
     } else {
         return redirect()->route("login");
     }
 }