<?php
/**
 * Created by PhpStorm.
 * User: julesgraus
 * Date: 08/02/2018
 * Time: 13:25
 */

namespace App\KommaApp\Shop\Cart;
use App\KommaApp\Shop\Discounts\DiscountableInterface;
use App\KommaApp\Shop\Products\Product\Product;


/**
 * Represents an item that can be put in the shopping cart.
 * This is simply a product coupled with an amount and a price modification.
 *
 * Class ShoppingCartItem
 * @package App\KommaApp\Shop\Cart
 */
interface ShoppingCartItemInterface extends DiscountableInterface
{
    /**
     * @return Product
     */
    public function getProduct(): Product;

    /**
     * @param Product $product
     * @return ShoppingCartItemInterface
     */
    public function setProduct(Product $product): ShoppingCartItemInterface;

    /**
     * @return int
     */
    public function getAmount(): int;

    /**
     * @param int $amount
     * @return ShoppingCartItemInterface
     */
    public function setAmount(int $amount): ShoppingCartItemInterface;

    /**
     * Returns the price total
     * @param bool $includeDiscounts
     * @return float
     */
    public function getTotal(bool $includeDiscounts = true): float;
}