<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\MainBundle\Templating;

use DateTimeInterface;
use Twig\Environment;
use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;

class ChillTwigHelper extends AbstractExtension
{
    public function getFilters()
    {
        return [
            new TwigFilter('chill_print_or_message', $this->printOrMessage(...), [
                'needs_environment' => true,
                'is_safe' => ['html', 'html_attrs'],
            ]),
        ];
    }

    /**
     * Print `value` inside a template, or, if $value is empty,
     * print $message.
     *
     * The template can be customized. The template is a full path to another
     * template, or one of the key belows:
     *
     * - 'default' ;
     * - 'blockquote' ;
     *
     * `DateTimeInterface are also rendered. The date and time format may be set
     * using those key in `$options´ parameter:
     *
     * - `date_format` (default to `'medium'`)
     * - `time_format` (default to `'none'`)
     *
     * @param string $value    Default to 'No value'. Fallback to default if null
     * @param string $message
     * @param string $template
     *
     * @return string
     */
    public function printOrMessage(
        Environment $twig,
        $value,
        $message = 'No value',
        $template = 'default',
        array $options = [],
    ) {
        if ($value instanceof \DateTimeInterface) {
            $options = \array_merge([
                'date_format' => 'medium',
                'time_format' => 'none',
            ], $options);

            $t = match ($template) {
                'default', 'blockquote' => '@ChillMain/Extensions/PrintOrMessage/'.$template.'_date.html.twig',
                default => $template,
            };
        } else {
            $t = match ($template) {
                'default', 'blockquote' => '@ChillMain/Extensions/PrintOrMessage/'.$template.'.html.twig',
                default => $template,
            };
        }

        return $twig->render($t, \array_merge([
            'value' => $value,
            'message' => $message,
        ], $options));
    }
}