<?php
namespace Domain\Basket;

class BasketCalculator
{
    public static function summaryWp($basket)
    {
        $wp = 0;
        if (is_array($basket)) {
            foreach ($basket as $product) {
                $wp += $product['wp'] * $product['quantity'];
            }
        }
        return $wp;
    }

    public static function countProductsText($count)
    {
        $count = (int)$count;
        if ($count === 1) {
            return $count . ' produkt';
        }
        if ($count >= 2 && $count <= 4) {
            return $count . ' produkty';
        }
        return $count . ' produktów';
    }

    public static function summaryPrice($basket, $coupon = null)
    {
        global $lang_id;

        $summary = 0;

        if (is_array($basket)) {
            foreach ($basket as $position) {
                $product = \shop\Product::getFromCache((int)$position['product-id'], $lang_id);

                $product_price_tmp = \shop\Product::calculate_basket_product_price(
                    (float)$product['price_brutto_promo'],
                    (float)$product['price_brutto'],
                    $coupon,
                    $position
                );
                $summary += $product_price_tmp['price_new'] * $position['quantity'];
            }
        }

        return \Shared\Helpers\Helpers::normalize_decimal($summary);
    }

    public static function countProducts($basket)
    {
        $count = 0;
        if (is_array($basket)) {
            foreach ($basket as $product) {
                $count += $product['quantity'];
            }
        }
        return $count;
    }
}