<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_menus
 *
 * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Menus\Administrator\Field;

use Joomla\CMS\Factory;
use Joomla\CMS\Form\Field\GroupedlistField;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\Component\Menus\Administrator\Helper\MenusHelper;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Supports an HTML grouped select list of menu item grouped by menu
 *
 * @since  3.8.0
 */
class MenuItemByTypeField extends GroupedlistField
{
    /**
     * The form field type.
     *
     * @var    string
     * @since  3.8.0
     */
    public $type = 'MenuItemByType';

    /**
     * The menu type.
     *
     * @var    string
     * @since  3.8.0
     */
    protected $menuType;

    /**
     * The client id.
     *
     * @var    string
     * @since  3.8.0
     */
    protected $clientId;

    /**
     * The language.
     *
     * @var    array
     * @since  3.8.0
     */
    protected $language;

    /**
     * The published status.
     *
     * @var    array
     * @since  3.8.0
     */
    protected $published;

    /**
     * The disabled status.
     *
     * @var    array
     * @since  3.8.0
     */
    protected $disable;

    /**
     * Method to get certain otherwise inaccessible properties from the form field object.
     *
     * @param   string  $name  The property name for which to get the value.
     *
     * @return  mixed  The property value or null.
     *
     * @since   3.8.0
     */
    public function __get($name)
    {
        switch ($name) {
            case 'menuType':
            case 'clientId':
            case 'language':
            case 'published':
            case 'disable':
                return $this->$name;
        }

        return parent::__get($name);
    }

    /**
     * Method to set certain otherwise inaccessible properties of the form field object.
     *
     * @param   string  $name   The property name for which to set the value.
     * @param   mixed   $value  The value of the property.
     *
     * @return  void
     *
     * @since   3.8.0
     */
    public function __set($name, $value)
    {
        switch ($name) {
            case 'menuType':
                $this->menuType = (string) $value;
                break;

            case 'clientId':
                $this->clientId = (int) $value;
                break;

            case 'language':
            case 'published':
            case 'disable':
                $value = (string) $value;
                $this->$name = $value ? explode(',', $value) : array();
                break;

            default:
                parent::__set($name, $value);
        }
    }

    /**
     * Method to attach a JForm object to the field.
     *
     * @param   \SimpleXMLElement  $element  The SimpleXMLElement object representing the `<field>` tag for the form field object.
     * @param   mixed              $value    The form field value to validate.
     * @param   string             $group    The field name group control value. This acts as an array container for the field.
     *                                       For example if the field has name="foo" and the group value is set to "bar" then the
     *                                       full field name would end up being "bar[foo]".
     *
     * @return  boolean  True on success.
     *
     * @see     \Joomla\CMS\Form\FormField::setup()
     * @since   3.8.0
     */
    public function setup(\SimpleXMLElement $element, $value, $group = null)
    {
        $result = parent::setup($element, $value, $group);

        if ($result == true) {
            $menuType = (string) $this->element['menu_type'];

            if (!$menuType) {
                $app = Factory::getApplication();
                $currentMenuType = $app->getUserState('com_menus.items.menutype', '');
                $menuType        = $app->input->getString('menutype', $currentMenuType);
            }

            $this->menuType  = $menuType;
            $this->clientId  = (int) $this->element['client_id'];
            $this->published = $this->element['published'] ? explode(',', (string) $this->element['published']) : array();
            $this->disable   = $this->element['disable'] ? explode(',', (string) $this->element['disable']) : array();
            $this->language  = $this->element['language'] ? explode(',', (string) $this->element['language']) : array();
        }

        return $result;
    }

    /**
     * Method to get the field option groups.
     *
     * @return  array  The field option objects as a nested array in groups.
     *
     * @since   3.8.0
     */
    protected function getGroups()
    {
        $groups = array();

        $menuType = $this->menuType;

        // Get the menu items.
        $items = MenusHelper::getMenuLinks($menuType, 0, 0, $this->published, $this->language, $this->clientId);

        // Build group for a specific menu type.
        if ($menuType) {
            // If the menutype is empty, group the items by menutype.
            $db    = $this->getDatabase();
            $query = $db->getQuery(true)
                ->select($db->quoteName('title'))
                ->from($db->quoteName('#__menu_types'))
                ->where($db->quoteName('menutype') . ' = :menuType')
                ->bind(':menuType', $menuType);
            $db->setQuery($query);

            try {
                $menuTitle = $db->loadResult();
            } catch (\RuntimeException $e) {
                $menuTitle = $menuType;
            }

            // Initialize the group.
            $groups[$menuTitle] = array();

            // Build the options array.
            foreach ($items as $key => $link) {
                // Unset if item is menu_item_root
                if ($link->text === 'Menu_Item_Root') {
                    unset($items[$key]);
                    continue;
                }

                $levelPrefix = str_repeat('- ', max(0, $link->level - 1));

                // Displays language code if not set to All
                if ($link->language !== '*') {
                    $lang = ' (' . $link->language . ')';
                } else {
                    $lang = '';
                }

                $groups[$menuTitle][] = HTMLHelper::_(
                    'select.option',
                    $link->value,
                    $levelPrefix . $link->text . $lang,
                    'value',
                    'text',
                    in_array($link->type, $this->disable)
                );
            }
        } else {
            // Build groups for all menu types.
            // Build the groups arrays.
            foreach ($items as $menu) {
                // Initialize the group.
                $groups[$menu->title] = array();

                // Build the options array.
                foreach ($menu->links as $link) {
                    $levelPrefix = str_repeat('- ', max(0, $link->level - 1));

                    // Displays language code if not set to All
                    if ($link->language !== '*') {
                        $lang = ' (' . $link->language . ')';
                    } else {
                        $lang = '';
                    }

                    $groups[$menu->title][] = HTMLHelper::_(
                        'select.option',
                        $link->value,
                        $levelPrefix . $link->text . $lang,
                        'value',
                        'text',
                        in_array($link->type, $this->disable)
                    );
                }
            }
        }

        // Merge any additional groups in the XML definition.
        $groups = array_merge(parent::getGroups(), $groups);

        return $groups;
    }
}