<?php

/**
 * ---------------------------------------------------------------------
 *
 * GLPI - Gestionnaire Libre de Parc Informatique
 *
 * http://glpi-project.org
 *
 * @copyright 2015-2026 Teclib' and contributors.
 * @copyright 2003-2014 by the INDEPNET Development Team.
 * @licence   https://www.gnu.org/licenses/gpl-3.0.html
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * ---------------------------------------------------------------------
 */

namespace Glpi\Application\View\Extension;

use Toolbox;
use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;
use Twig\TwigTest;

/**
 * @since 10.0.0
 */
class PhpExtension extends AbstractExtension
{
    public function getFunctions(): array
    {
        return [
            new TwigFunction('php_config', [$this, 'phpConfig']),
            new TwigFunction('call', [$this, 'call']),
            new TwigFunction('get_static', [$this, 'getStatic']),
            new TwigFunction('get_class', 'get_class'),
        ];
    }

    public function getTests(): array
    {
        return [
            new TwigTest('instanceof', [$this, 'isInstanceOf']),
            new TwigTest('usingtrait', [$this, 'isUsingTrait']),
            new TwigTest('array', 'is_array'),
            new TwigTest('object', 'is_object'),
        ];
    }

    /**
     * Get PHP configuration value.
     *
     * @param string $name
     *
     * @return mixed
     */
    public function phpConfig(string $name)
    {
        return ini_get($name);
    }

    /**
     * Call function of static method.
     *
     * @param string $callable
     * @param array $parameters
     *
     * @return mixed
     */
    public function call(string $callable, array $parameters = [])
    {
        if (!is_callable($callable)) {
            \trigger_error(sprintf('Invalid callable `%s`.', $callable), E_USER_WARNING);
            return null;
        }
        return call_user_func_array($callable, $parameters);
    }

    /**
     * Return static property value.
     *
     * @param mixed $class
     * @param string $property
     *
     * @return mixed
     */
    public function getStatic($class, string $property)
    {
        if (!is_object($class) && !class_exists($class)) {
            \trigger_error(
                sprintf(
                    'Invalid class or object `%s`.',
                    \is_string($class) ? $class : \get_debug_type($class)
                ),
                E_USER_WARNING
            );
            return null;
        }
        if (!property_exists($class, $property)) {
            \trigger_error(
                sprintf(
                    'Invalid property `%s::%s.',
                    \is_string($class) ? $class : \get_debug_type($class),
                    $property
                ),
                E_USER_WARNING
            );
            return null;
        }

        return $class::$$property;
    }

    /**
     * Checks if a given value is an instance of given class name.
     *
     * @param mixed  $value
     * @param string $classname
     *
     * @return bool
     */
    public function isInstanceof($value, $classname): bool
    {
        return is_object($value) && $value instanceof $classname;
    }

    /**
     * Checks if a given value is an instance of class using given trait name.
     *
     * @param mixed  $value
     * @param string $trait
     *
     * @return bool
     */
    public function isUsingTrait($value, $trait): bool
    {
        return is_object($value) && Toolbox::hasTrait($value, $trait);
    }
}
