<?php
/*************************************************************************************/
/*                                                                                   */
/*      Thelia	                                                                     */
/*                                                                                   */
/*      Copyright (c) OpenStudio                                                     */
/*      email : info@thelia.net                                                      */
/*      web : http://www.thelia.net                                                  */
/*                                                                                   */
/*      This program is free software; you can redistribute it and/or modify         */
/*      it under the terms of the GNU General Public License as published by         */
/*      the Free Software Foundation; either version 3 of the License                */
/*                                                                                   */
/*      This program is distributed in the hope that it will be useful,              */
/*      but WITHOUT ANY WARRANTY; without even the implied warranty of               */
/*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                */
/*      GNU General Public License for more details.                                 */
/*                                                                                   */
/*      You should have received a copy of the GNU General Public License            */
/*	    along with this program. If not, see <http://www.gnu.org/licenses/>.         */
/*                                                                                   */
/*************************************************************************************/

namespace Thelia\Action;

use Symfony\Component\Config\Definition\Exception\Exception;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Thelia\Core\Event\ActionEvent;
use Thelia\Core\HttpFoundation\Session\Session;
use Thelia\Form\CartAdd;
use Thelia\Model\CartQuery;
use Thelia\Model\Cart as CartModel;
use Thelia\Model\Customer;


class Cart implements EventSubscriberInterface
{
    /**
     *
     * add an article to cart
     *
     * @param \Thelia\Core\Event\ActionEvent $event
     */
    public function addArticle(ActionEvent $event)
    {
        $request = $event->getRequest();

        if ($request->isMethod("post")) {
            $cartAdd = new CartAdd($request);
        } else {
            $cartAdd = new CartAdd(
                $request,
                "form",
                array(),
                array(
                    'csrf_protection'   => false,
                )
            );
        }

        $form = $cartAdd->getForm();

        $form->bind($request);

        if($form->isValid()) {

        } else {
            var_dump($form->createView());
        }
    }


    /**
     *
     * Delete specify article present into cart
     *
     * @param \Thelia\Core\Event\ActionEvent $event
     */
    public function deleteArticle(ActionEvent $event)
    {

    }

    /**
     *
     * Modify article's quantity
     *
     * @param \Thelia\Core\Event\ActionEvent $event
     */
    public function modifyArticle(ActionEvent $event)
    {

    }

    /**
     * Returns an array of event names this subscriber wants to listen to.
     *
     * The array keys are event names and the value can be:
     *
     *  * The method name to call (priority defaults to 0)
     *  * An array composed of the method name to call and the priority
     *  * An array of arrays composed of the method names to call and respective
     *    priorities, or 0 if unset
     *
     * For instance:
     *
     *  * array('eventName' => 'methodName')
     *  * array('eventName' => array('methodName', $priority))
     *  * array('eventName' => array(array('methodName1', $priority), array('methodName2'))
     *
     * @return array The event names to listen to
     *
     * @api
     */
    public static function getSubscribedEvents()
    {
        return array(
            "action.addArticle" => array("addArticle", 128),
            "action.deleteArticle" => array("deleteArticle", 128),
            "action.modifyArticle" => array("modifyArticle", 128),
        );
    }

    public function getCart(Request $request)
    {

        if(null !== $cart = $request->getSession()->getCart()){
            return $cart;
        }

        if ($request->cookies->has("thelia_cart")) {
            //le cookie de panier existe, on le récupère
            $token = $request->cookies->get("thelia_cart");

            $cart = CartQuery::create()->findOneByToken($token);

            if ($cart) {
                //le panier existe en base
                $customer = $request->getSession()->getCustomerUser();

                if ($customer) {
                    if($cart->getCustomerId() != $customer->getId()) {
                        //le customer du panier n'est pas le mm que celui connecté, il faut cloner le panier sans le customer_id
                        $cart = $this->duplicateCart($cart, $request->getSession(), $customer);
                    }
                } else {
                    if ($cart->getCustomerId() != null) {
                        //il faut dupliquer le panier sans le customer_id
                        $cart = $this->duplicateCart($cart, $request->getSession());
                    }
                }

            } else {
                $cart = $this->createCart($request->getSession());
            }
        } else {
            //le cookie de panier n'existe pas, il va falloir le créer et faire un enregistrement en base.
            $cart = $this->createCart($request->getSession());
        }

        return $cart;
    }

    /**
     * @param Session $session
     * @return CartModel
     */
    protected function createCart(Session $session)
    {
        $cart = new CartModel();
        $cart->setToken($this->generateCookie());

        if(null !== $customer = $session->getCustomerUser()) {
            $cart->setCustomer($customer);
        }

        $cart->save();

        $session->setCart($cart->getId());

        return $cart;
    }


    /**
     * @param CartModel $cart
     * @param Session $session
     * @param Customer $customer
     * @return CartModel
     */
    protected function duplicateCart(CartModel $cart, Session $session, Customer $customer = null)
    {
        $newCart = $cart->duplicate($this->generateCookie(), $customer);
        $session->setCart($newCart->getId());

        return $newCart;
    }

    protected function generateCookie()
    {
        $id = uniqid('', true);
        setcookie("thelia_cart", $id, time()+(60*60*24*365));

        return $id;
    }
}