<?php

/**
 *
 *  Class ki skrbi za placila s paypalom
 *
*/


class UserNarocilaPaypal{


    private $narocilo;


    public function __construct($narocilo_id){
        global $app_settings;
        
        if($narocilo_id > 0){

            // Dobimo podatke narocila
            $sqlNarocilo = sisplet_query("SELECT un.*, u.name, u.surname, u.email, up.name AS package_name, up.description AS package_description, up.price AS package_price
                                            FROM user_access_narocilo un, users u, user_access_paket up
                                            WHERE un.id='".$narocilo_id."' AND un.usr_id=u.id AND un.package_id=up.id");
            if(mysqli_num_rows($sqlNarocilo) > 0){
                $this->narocilo = mysqli_fetch_array($sqlNarocilo);
            }
            else{
                die("Napaka pri komunikaciji s paypal! Narocilo ne obstaja.");
            }
        }
        else {
			die("Napaka pri komunikaciji s paypal! Manjka ID naročila.");
		}
    }


    // Placamo narocilo s paypal
    public function paypalCreatePayment(){
        global $paypal_account;
        global $paypal_client_id;
        global $paypal_secret;
        global $site_url;
        

        $UA = new UserNarocila();
        $cena = $UA->getPrice($this->narocilo['package_name'], $this->narocilo['trajanje'], $this->narocilo['discount']);

        if($this->narocilo['trajanje'] == 1)
            $months_string = 'mesec';
        elseif($this->narocilo['trajanje'] == 2)
            $months_string = 'meseca';
        elseif($this->narocilo['trajanje'] == 3 || $this->narocilo['trajanje'] == 4)
            $months_string = 'mesece';
        else
            $months_string = 'mesecev';

            
        // Zavezanec iz tujine ima racun/predracun brez ddv
        if($UA->isWithoutDDV($this->narocilo['id'])){
            $ddv = 0;
            $cena_za_placilo = $cena['final_without_tax'];
        }   
        else{
            $ddv = 1;
            $cena_za_placilo = $cena['final'];
        }
        

        // Podatki za paypal potrebni za placilo
        $orderDetails = array(
            'business'      => $paypal_client_id,

            'item_name'     => '1KA naročnina (paket '.strtoupper($this->narocilo['package_name']). ' - '.$this->narocilo['trajanje'].' '.$months_string.')',
            'item_number'   => $this->narocilo['id'],
            'amount'        => $cena_za_placilo * 100,
            'currency_code' => 'EUR',

            'return'        => $site_url.'frontend/payments/paypal-pay.php',
            'cancel_return' => $site_url.'frontend/payments/paypal-cancel.php',

            'cmd'           => '_xclick'            
        );

        // Posljemo placilo na paypal, da se lahko potem user prijavi in ga placa
        $paypalResponse = $this->paypalCreatePaymentSend($orderDetails);
        

        // Vstavimo plačilo v bazo
        $sqlNarocilo = sisplet_query("INSERT INTO user_access_paypal_transaction 
                                        (transaction_id, narocilo_id, price, currency_type, time)
                                        VALUES
                                        ('".$paypalResponse['transaction_id']."', '".$paypalResponse['narocilo_id']."', '".$paypalResponse['price']."', '".$paypalResponse['currency_type']."',NOW())
                                    ");
        if (!$sqlNarocilo){
            $response['error'] = 'ERROR! '.mysqli_error($GLOBALS['connect_db']);
            return $response;
        }


        $response = array();
        
        return $response;
    }


    // Posljemo podatke za placilo paypalu - TODO
    private function paypalCreatePaymentSend(){
        global $paypal_account;
        global $paypal_client_id;
        global $paypal_secret;

        $response = array();

        $paypal_url = 'https://www.paypal.com/cgi-bin/webscr';

        /* 
            $response['transaction_id'] = $_GET['tx'];
            $response['narocilo_id'] = $_GET['item_number'];
            $response['price'] = $_GET['amt']; 
            $response['currency_type'] = $_GET['cc'];
        */   
        
        return $response;
    }
}