<?php
/* Copyright (C) 2002-2006 Rodolphe Quiedeville <rodolphe@quiedeville.org>
 * Copyright (C) 2005-2012 Laurent Destailleur  <eldy@users.sourceforge.net>
 *
 * 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/>.
 */

/**
 *  \file       htdocs/core/class/menu.class.php
 *  \ingroup    core
 *  \brief      Fichier de la classe de gestion du menu gauche
 */


/**
 *	Class to manage left menus
 */
class Menu
{
	public $liste;

	/**
	 *	Constructor
	 */
	public function __construct()
	{
		  $this->liste = array();
	}

	/**
	 * Clear property ->liste
	 *
	 * @return	void
	 */
	public function clear()
	{
		$this->liste = array();
	}

	/**
	 * Add a menu entry into this->liste (at end)
	 *
	 * @param	string	$url        Url to follow on click (does not include DOL_URL_ROOT)
	 * @param   string	$titre      Label of menu to add. The value must already be translated.
	 * @param   integer	$level      Level of menu to add
	 * @param   int		$enabled    Menu active or not (0=Not active, 1=Active, 2=Active but grey)
	 * @param   string	$target		Target link
	 * @param	string	$mainmenu	Main menu ('home', 'companies', 'products', ...)
	 * @param	string	$leftmenu	Left menu ('setup', 'system', 'admintools', ...)
	 * @param	int		$position	Position (not used yet)
	 * @param	string	$id			Id
	 * @param	string	$idsel		Id sel
	 * @param	string	$classname	Class name
	 * @param	string	$prefix		Prefix to title (image or picto)
	 * @return	void
	 */
	public function add($url, $titre, $level = 0, $enabled = 1, $target = '', $mainmenu = '', $leftmenu = '', $position = 0, $id = '', $idsel = '', $classname = '', $prefix = '')
	{
		$this->liste[] = array('url'=>$url, 'titre'=>$titre, 'level'=>$level, 'enabled'=>$enabled, 'target'=>$target, 'mainmenu'=>$mainmenu, 'leftmenu'=>$leftmenu, 'position'=>$position, 'id'=>$id, 'idsel'=>$idsel, 'classname'=>$classname, 'prefix'=>$prefix);
	}

	/**
	 * Insert a menu entry into this->liste
	 *
	 * @param   int     $idafter    Array key after which inserting new entry
	 * @param	string	$url        Url to follow on click
	 * @param   string	$titre      Label of menu to add. The value must already be translated.
	 * @param   integer	$level      Level of menu to add
	 * @param   int		$enabled    Menu active or not
	 * @param   string	$target		Target link
	 * @param	string	$mainmenu	Main menu ('home', 'companies', 'products', ...)
	 * @param	string	$leftmenu	Left menu ('setup', 'system', 'admintools', ...)
	 * @param	int		$position	Position (not used yet)
	 * @param	string	$id			Id
	 * @param	string	$idsel		Id sel
	 * @param	string	$classname	Class name
	 * @param	string	$prefix		Prefix to title (image or picto)
	 * @return	void
	 */
	public function insert($idafter, $url, $titre, $level = 0, $enabled = 1, $target = '', $mainmenu = '', $leftmenu = '', $position = 0, $id = '', $idsel = '', $classname = '', $prefix = '')
	{
		$array_start = array_slice($this->liste, 0, ($idafter + 1));
		$array_new   = array(0=>array('url'=>$url, 'titre'=>$titre, 'level'=>$level, 'enabled'=>$enabled, 'target'=>$target, 'mainmenu'=>$mainmenu, 'leftmenu'=>$leftmenu, 'position'=>$position, 'id'=>$id, 'idsel'=>$idsel, 'classname'=>$classname, 'prefix'=>$prefix));
		$array_end   = array_slice($this->liste, ($idafter + 1));
		$this->liste = array_merge($array_start, $array_new, $array_end);
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 * Remove a menu entry from this->liste
	 *
	 * @return	void
	 */
	public function remove_last()
	{
		// phpcs:enable
		if (count($this->liste) > 1) {
			array_pop($this->liste);
		}
	}

	/**
	 * Return number of visible entries (gray or not)
	 *
	 *  @return int     Number of visible (gray or not) menu entries
	 */
	public function getNbOfVisibleMenuEntries()
	{
		$nb = 0;
		foreach ($this->liste as $val) {
			//if (dol_eval($val['enabled'], 1)) $nb++;
			if (!empty($val['enabled'])) {
				$nb++; // $val['enabled'] is already evaluated to 0 or 1, no need for dol_eval()
			}
		}
		return $nb;
	}
}
