<?php declare(strict_types=1);


namespace App\Discounts\Conditions;


use App\Cart\ShoppingCart;
use App\Discounts\DiscountableInterface;
use App\Discounts\DiscountService;
use App\Vat\VatService;

class CartSubtotalHandler extends CountConditionHandler
{
    protected ?int $type = DiscountConditionTypes::CART_SUBTOTAL;

    public function canBeApplied(DiscountableInterface $discountable, string $operator, string $param): bool
    {
        if(!is_a($discountable, ShoppingCart::class)) return false;
        $discountService = new DiscountService();
        $vatService = new VatService();

        //Calculate the total inc vat price of the shopping cart
        $subtotalInc = 0;
        foreach($discountable->getItems() as $item) {
            $discountService->applyDiscountsTo($item);
            $vatService->calculateVatForModelWithVatScenarioEnum($item);
            $subtotalInc += $item->getPriceInc();
        }

        $result = false;
        if($operator === '<') {
            if($subtotalInc < intval($param)) $result = true;
        } else if($operator === '<=') {
            if($subtotalInc <= intval($param)) $result = true;
        } else if($operator === '==') {
            if($subtotalInc == intval($param)) $result = true;
        } else if($operator === '!=') {
            if($subtotalInc != intval($param)) $result = true;
        } else if($operator >= '>=') {
            if($subtotalInc >= intval($param)) $result = true;
        } else if($operator > '>') {
            if($subtotalInc > intval($param)) $result = true;
        } else if($operator === 'in') {
            if(in_array($subtotalInc, $this->dissectParam($param), true)) $result = true;
        } else if($operator === 'not_in') {
            if(!in_array($subtotalInc, $this->dissectParam($param), true)) $result = true;
        }

        return $result;
    }

    private function dissectParam(string $param) {
        return array_map('trim', explode(',', $param));
    }
}