cart

<?php
declare(strict_types = 1);

namespace Gwo\Recruitment\Cart;

use Gwo\Recruitment\Entity\Product;

/**
 * Class Cart
 * @package Gwo\Recruitment\Cart
 */

class Cart
{
    private $cart = array();
    private $Items = array();
    private $product;
    private $totalPrice;
    private $item;
    private $id;
    private $quantity;
    private $index;

    /**
     * @return array
     */
    public function getItems(): array
    {
        return $this->Items;
    }

    /**
     * @return mixed
     */
    public function getIndex()
    {
        return $this->index;
    }

    /**
     * @param mixed $index
     */
    public function setIndex($index): void
    {
        $this->index = $index;
    }
    /**
     * @return array
     */
    public function getCart(): array
    {
        return $this->cart;
    }

    /**
     * @param array $cart
     */
    public function setCart(array $cart): void
    {
        $this->cart = $cart;
    }

    /**
     * @return mixed
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * @param mixed $id
     */
    public function setId($id): void
    {
        $this->id;
    }

    /**
     * @param array $Items
     */
    public function setItems(array $Items): void
    {
        $this->Items = $Items;
    }

    /**
     * @return mixed
     */
    public function getQuantity()
    {
        return $this->quantity;
    }

    /**
     * @param Product $product
     * @param mixed $quantity
     * @return Cart
     */
    public function setQuantity(Product $product, $quantity)
    {
        $this->product = $product;
        $this->quantity = $quantity;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getProduct()
    {

        return $this->product;
    }

    /**
     * @param mixed $product
     * @return Cart
     */
    public function setProduct($product)
    {
        $this->product = $product;
        return $this;
    }


    /**
     * @param $index
     * @return mixed
     */
    public function getItem($index)
    {
        $this->index = $index;


        return $this;
    }


    public function setItem($item)
    {
        $this->item = $item;
        return $this;
    }

    /**
     * @return mixed
     */

    public function getTotalPrice()
    {
        return $this->totalPrice =  $this->getProduct()->getUnitPrice() * $this->getQuantity();
    }
    //return $this->totalPrice =  count($this->getItems()) * $this->getProduct()->getUnitPrice() * $this->getQuantity();



    /**
     * @param mixed $totalPrice
     */
    public function setTotalPrice($totalPrice): void
    {
        $this->totalPrice = $totalPrice;
    }

    public function addProduct(Product $product, $quantity)
    {

        // to do
        $this->cart = array();
        $this->product = $product;
        $this->quantity = $quantity;
        $this->setProduct(array($this));
        $this->setItems(array($product));
        $this->setTotalPrice($product);


        return $this;
    }

    public function removeProduct(Product $product)
    {
        // to do
    }

}