<?php

namespace EP\EpTheme\ViewHelpers;

use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithContentArgumentAndRenderStatic;

/**
 * Formats a euro amount the way the website always has for whole euros ("229",
 * "1234"), and with German decimals where there are cents ("99,90"). Prices are
 * stored with cents, and the database hands them over as strings like "229.00".
 *
 * Keep in sync with formatPrice() in pricetable_controller.js.
 *
 * Usage: {row.minPrice -> ep:price()} €
 */
class PriceViewHelper extends AbstractViewHelper
{
    use CompileWithContentArgumentAndRenderStatic;

    public function initializeArguments()
    {
        parent::initializeArguments();

        $this->registerArgument('value', 'mixed', 'Amount in euros');
    }

    /**
     * @param array $arguments
     * @param \Closure $renderChildrenClosure
     * @param RenderingContextInterface $renderingContext
     * @return string
     */
    public static function renderStatic(
        array $arguments,
        \Closure $renderChildrenClosure,
        RenderingContextInterface $renderingContext
    ) {
        $amount = round((float) $renderChildrenClosure(), 2);
        $decimals = floor($amount) === $amount ? 0 : 2;

        return number_format($amount, $decimals, ',', '');
    }
}