<?php

namespace App\Lib\LDC;

use Gloudemans\Shoppingcart\CartItem;
use Gloudemans\Shoppingcart\Contracts\Calculator;

class CartCalculator implements Calculator
{
    /**
     * All purpose getter
     *
     * @param string   $attribute
     * @param CartItem $cartItem
     * @return float|void
     * @phpcs:disable Generic.Metrics.CyclomaticComplexity.TooHigh
     */
    public static function getAttribute(string $attribute, CartItem $cartItem)
    {
        // @phpcs:enable
        $decimals = config('cart.format.decimals', 2);

        switch ($attribute) {
            case 'discount':
                return round($cartItem->price * ($cartItem->getDiscountRate() / 100) * 100) / 100;
            case 'tax':
                return round($cartItem->priceTarget * ($cartItem->taxRate / 100), $decimals);
            case 'priceTax':
                return round($cartItem->priceTarget + $cartItem->tax, $decimals);
            case 'discountTotal':
                return round($cartItem->discount * $cartItem->qty, $decimals);
            case 'priceTotal':
                return round($cartItem->price * $cartItem->qty, $decimals);
            case 'subtotal':
                return max(round($cartItem->priceTotal - $cartItem->discountTotal, $decimals), 0);
            case 'priceTarget':
                return round(($cartItem->priceTotal - $cartItem->discountTotal) / $cartItem->qty, $decimals);
            case 'taxTotal':
                // Taxe pour un item multiplié par la quantité.
                $unit_price = max($cartItem->price - $cartItem->discount, 0);
                $unit_tax   = round($unit_price * ($cartItem->taxRate / 100), $decimals);
                $taxTotal   = round($unit_tax * $cartItem->qty, $decimals);
                return $taxTotal;
            case 'total':
                return round($cartItem->subtotal + $cartItem->taxTotal, $decimals);
            default:
                return;
        }//end switch
    }
}