商品IDをCookieに保存したり取得したり

CheckedProduct.php

<?php


namespace Customize\Service;


use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Eccube\Entity\Product;
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Response;

/**
 * 商品IDをCookieに保存したり取得したり
 *
 * Class CheckedProduct
 * @package Customize\Service
 */
class CheckedProduct
{
    /**
     * @var string
     */
    private $cookie_name = 'cookie_name';

    /**
     * @var int
     */
    private $limit = 5;

    /**
     * @var Request
     */
    private $request;

    /**
     * @var ArrayCollection
     */
    private $products;

    public function __construct(
        RequestStack $requestStack
    ) {
        $this->request = $requestStack->getCurrentRequest();

        $cookie = $this->getCookie();
        $cookie = $cookie ? explode(',', $cookie) : [];
        $this->products = new ArrayCollection(array_map('intval', $cookie));
    }

    /**
     * Cookieから商品IDを取得
     *
     * @return Collection
     */
    public function getProducts(): Collection
    {
        return $this->products;
    }

    /**
     * 商品IDを追加
     *
     * @param Product $product
     * @return $this
     */
    public function addProduct(Product $product): self
    {
        if(!in_array($product->getId(), $this->products->getValues(), true)) {
            $products = $this->products->toArray();
            array_unshift($products, $product->getId());
            $this->products = new ArrayCollection($products);
        }

        if($this->products->count() > $this->getLimit()) {
            $this->products->removeElement($this->products->last());
        }

        return $this;
    }

    /**
     * 保持上限をセット
     *
     * @param int $limit
     * @return $this
     */
    public function setLimit(int $limit): self
    {
        $this->limit = $limit;

        return $this;
    }

    /**
     * 保持上限を取得
     *
     * @return int
     */
    public function getLimit(): int
    {
        return $this->limit;
    }

    /**
     * Cookieを取得
     *
     * @return string|null
     */
    public function getCookie(): ?string
    {
        if(!$this->request) {
            return null;
        }

        return $this->request->cookies->get($this->getCookieName());
    }

    /**
     * Cookieをセット
     *
     * @param Response $response
     * @param Cookie $cookie
     * @return Response
     */
    public function setCookie(Response $response, Cookie $cookie): Response
    {
        $response->headers->setCookie($cookie);

        return $response;
    }

    /**
     * Cookie削除
     *
     * @param Response $response
     * @param Cookie $cookie
     * @return Response
     */
    public function remove(Response $response, Cookie $cookie): Response
    {
        $response->headers->removeCookie($cookie->getName(), $cookie->getPath(), $cookie->getDomain());

        return $response;
    }

    /**
     * Cookie名をセット
     *
     * @param string $cookie_name
     * @return $this
     */
    public function setCookieName(string $cookie_name): self
    {
        $this->cookie_name = $cookie_name;

        return $this;
    }

    /**
     * Cookie名を取得
     *
     * @return string
     */
    public function getCookieName(): string
    {
        return $this->cookie_name;
    }
}