<?php

namespace EP\EpTheme\ViewHelpers\Stimulus;

use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;

/**
 * This code is adapted from the Symfony WebpackEncoreBundle package.
 * (c) Fabien Potencier <fabien@symfony.com>
 */
class TargetViewHelper extends AbstractStimulusViewHelper
{
    use CompileWithRenderStatic;

    protected $escapeOutput = false;

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

        $this->registerArgument('controller', 'mixed', 'Controller name(s)', true);
        $this->registerArgument('targets', 'string', 'Target names', false);
    }

    /**
     * @param array $arguments
     * @param \Closure $renderChildrenClosure
     * @param RenderingContextInterface $renderingContext
     * @return string
     */
    public static function renderStatic(
        array $arguments,
        \Closure $renderChildrenClosure,
        RenderingContextInterface $renderingContext
    )
    {
        $dataOrControllerName = $arguments['controller'];
        $targetNames = $arguments['target'];

        if (\is_string($dataOrControllerName)) {
            $data = [$dataOrControllerName => $targetNames];
        } else {
            if ($targetNames) {
                throw new \InvalidArgumentException('You cannot pass a string to the second argument while passing an array to the first argument of stimulus_target(): check the documentation.');
            }

            $data = $dataOrControllerName;

            if (!$data) {
                return '';
            }
        }

        $targets = [];

        foreach ($data as $controllerName => $targetNames) {
            $controllerName = static::normalizeControllerName($controllerName);

            $targets['data-'.$controllerName.'-target'] = htmlspecialchars($targetNames, ENT_QUOTES);
        }

        return implode(' ', array_map(static function (string $attribute, string $value): string {
            return $attribute.'="'.$value.'"';
        }, array_keys($targets), $targets));
    }

}