<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2020 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI 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 2 of the License, or
 * (at your option) any later version.
 *
 * GLPI 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 GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}


/**
 * @since 0.84
 *
 * The base entity for the table. The entity is the base of kind of cell (header or not). It
 * provides facilities to manage the cells such as attributs or specific content (mixing of strings
 * and call of method during table display)
**/
abstract class HTMLTableEntity {

   private $html_id    = '';
   private $html_style = [];
   private $html_class = [];

   private $content;


   /**
    * Constructor of an entity
    *
    * @param string $content
    *    The content of a cell, header, ... Can simply be a string. But it can also
    *    be a call to a specific function during the rendering of the table in case
    *    of direct display function (for instance: Dropdown::showNumber). A function
    *    call is an array containing two elements : 'function', the name the function
    *    and 'parameters', an array of the parameters given to the function.
   **/
   function __construct($content) {
      $this->content = $content;
   }


   /**
    * @param $origin
   **/
   function copyAttributsFrom(HTMLTableEntity $origin) {

      $this->html_id    = $origin->html_id;
      $this->html_style = $origin->html_style;
      $this->html_class = $origin->html_class;
   }


   /**
    * @param $html_id
   **/
   function setHTMLID($html_id) {
      $this->html_id = $html_id;
   }


   /**
    * userfull ? function never called
    *
    * @param $html_style
   **/
   function setHTMLStyle($html_style) {
      if (is_array($html_style)) {
         $this->html_style = array_merge($this->html_style, $html_style);
      } else {
         $this->html_style[] = $html_style;
      }
   }


   /**
    * @param $html_class
   **/
   function setHTMLClass($html_class) {
      if (is_array($html_class)) {
         $this->html_class = array_merge($this->html_class, $html_class);
      } else {
         $this->html_class[] = $html_class;
      }
   }


   /**
    * @param $options   array
   **/
   function displayEntityAttributs(array $options = []) {

      $id = $this->html_id;
      if (isset($options['id'])) {
         $id = $options['id'];
      }
      if (!empty($id)) {
         echo " id='$id'";
      }

      $style = $this->html_style;
      if (isset($options['style'])) {
         if (is_array($options['style'])) {
            $style = array_merge($style, $options['style']);
         } else {
            $style[] = $options['style'];
         }
      }
      if (count($style) > 0) {
         echo " style='".implode(';', $style)."'";
      }

      $class = $this->html_class;
      if (isset($options['class'])) {
         if (is_array($options['class'])) {
            $class = array_merge($class, $options['class']);
         } else {
            $class[] = $options['class'];
         }
      }
      if (count($class) > 0) {
         echo " class='".implode(' ', $class)."'";
      }
   }


   /**
    * @param $content
   **/
   function setContent($content) {
      $this->content = $content;
   }


   function displayContent() {

      if (is_array($this->content)) {
         foreach ($this->content as $content) {
            if (is_string($content)) {
               // Manage __RAND__ to be computed on display
               $content = str_replace('__RAND__', mt_rand(), $content);
               echo $content;
            } else if (isset($content['function'])) {
               if (isset($content['parameters'])) {
                  $parameters = $content['parameters'];
               } else {
                  $parameters = [];
               }
               call_user_func_array ($content['function'], $parameters);
            }
         }
      } else {
          // Manage __RAND__ to be computed on display
          $content = $this->content;
          $content = str_replace('__RAND__', mt_rand(), $content);
          echo $content;
      }
   }
}