setup.php

<?php
/**
 * ---------------------------------------------------------------------
 *  father is a plugin to add relation father / son between tickets
 *  ---------------------------------------------------------------------
 *  LICENSE
 *
 *  This file is part of father.
 *
 *  father 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.
 *
 *  father 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 father. If not, see <http://www.gnu.org/licenses/>.
 *  ---------------------------------------------------------------------
 *  @copyright Copyright © 2022-2023 probeSys'
 *  @license   http://www.gnu.org/licenses/agpl.txt AGPLv3+
 *  @link      https://github.com/Probesys/glpi-plugins-father
 *  @link      https://plugins.glpi-project.org/#/plugin/father
 *  ---------------------------------------------------------------------
 */

// Version of the plugin
define('PLUGIN_FATHER_VERSION', '1.4.4');
// Minimal GLPI version, inclusive
define('PLUGIN_FATHER_GLPI_MIN_VERSION', '10');
// Maximum GLPI version, exclusive
define('PLUGIN_FATHER_GLPI_MAX_VERSION', '11');

if (!defined("PLUGIN_FATHER_DIR")) {
   define('PLUGIN_FATHER_DIR', Plugin::getPhpDir("father"));
}
if (!defined("PLUGIN_FATHER_WEB_DIR")) {
   define("PLUGIN_FATHER_WEB_DIR", Plugin::getWebDir("father"));
}

/**
 * Check plugin's config before activation
 */
function plugin_father_check_config($verbose = false) {
    return true;
}

function plugin_init_father() {
    global $PLUGIN_HOOKS;
    $PLUGIN_HOOKS['csrf_compliant']['father'] = true;

   if (class_exists('PluginFatherFather')) {
       $config = new PluginFatherConfig();
       $PLUGIN_HOOKS['csrf_compliant']['father'] = true;
       $PLUGIN_HOOKS['config_page']['father'] = 'front/config.form.php';

       Plugin::registerClass(
           'PluginFatherFatherItem',
           ['addtabon' => ['PluginFatherFather']]
       );

      if (isset($_SERVER) && array_key_exists('REQUEST_URI', $_SERVER) && (
               ((strpos($_SERVER['REQUEST_URI'], "/ticket.form.php") !== false) && $config->isOk(0)) ||
               ((strpos($_SERVER['REQUEST_URI'], "/problem.form.php") !== false) && $config->isOk(1)) ||
               ((strpos($_SERVER['REQUEST_URI'], "/change.form.php") !== false) && $config->isOK(2))
            )
       ) {
         $PLUGIN_HOOKS['add_javascript']['father'][] = 'js/show_father.js';
      }
      if ($config->isOk(0)) {
          $PLUGIN_HOOKS['pre_item_update']['father']['Ticket'] = ['PluginFatherFather', 'beforeUpdate'];
      }
      if ($config->isOk(1)) {
          $PLUGIN_HOOKS['pre_item_update']['father']['Problem'] = ['PluginFatherFather', 'beforeUpdate'];
      }

      if ($config->isOk(2)) {
          $PLUGIN_HOOKS['pre_item_update']['father']['Change'] = ['PluginFatherFather', 'beforeUpdate'];
      }
   }
}

function plugin_version_father() {
    return [
        'name' => __('Father&Sons', 'father'),
        'version' => PLUGIN_FATHER_VERSION,
        'author' => '<a href="https://www.probesys.com">PROBESYS</a>',
        'homepage' => 'https://github.com/Probesys/glpi-plugins-father',
        'license' => '<a href="'. Plugin::getPhpDir('father', false).'/LICENSE" target="_blank">AGPLv3</a>',
        'minGlpiVersion' => PLUGIN_FATHER_GLPI_MIN_VERSION
    ];
}

/**
 * Check plugin's prerequisites before installation
 */
function plugin_father_check_prerequisites() {
   if (version_compare(GLPI_VERSION, PLUGIN_FATHER_GLPI_MIN_VERSION, 'lt') || version_compare(GLPI_VERSION, PLUGIN_FATHER_GLPI_MAX_VERSION, 'ge')) {
       echo __('This plugin requires GLPI >= ' . PLUGIN_FATHER_GLPI_MIN_VERSION . ' and GLPI < ' . PLUGIN_FATHER_GLPI_MAX_VERSION . '<br>');
   } else {
       return true;
   }
    return false;
}