<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_menus
 *
 * @copyright   (C) 2009 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\View\Items;

use Joomla\CMS\Event\Menu\BeforeRenderMenuItemsViewEvent;
use Joomla\CMS\Factory;
use Joomla\CMS\Helper\ContentHelper;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\CMS\Language\Multilanguage;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Toolbar\Toolbar;
use Joomla\CMS\Toolbar\ToolbarHelper;

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

/**
 * The HTML Menus Menu Items View.
 *
 * @since  1.6
 */
class HtmlView extends BaseHtmlView
{
    /**
     * Array used for displaying the levels filter
     *
     * @var    \stdClass[]
     * @since  4.0.0
     */
    protected $f_levels;

    /**
     * An array of items
     *
     * @var  array
     */
    protected $items;

    /**
     * The pagination object
     *
     * @var  \Joomla\CMS\Pagination\Pagination
     */
    protected $pagination;

    /**
     * The model state
     *
     * @var  \Joomla\Registry\Registry
     */
    protected $state;

    /**
     * Form object for search filters
     *
     * @var    \Joomla\CMS\Form\Form
     *
     * @since  4.0.0
     */
    public $filterForm;

    /**
     * The active search filters
     *
     * @var    array
     * @since  4.0.0
     */
    public $activeFilters;

    /**
     * Ordering of the items
     *
     * @var    array
     * @since  4.0.0
     */
    protected $ordering;

    /**
     * Display the view
     *
     * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
     *
     * @return  void
     *
     * @since   1.6
     */
    public function display($tpl = null)
    {
        $lang                = $this->getLanguage();
        $this->items         = $this->get('Items');
        $this->pagination    = $this->get('Pagination');
        $this->total         = $this->get('Total');
        $this->state         = $this->get('State');
        $this->filterForm    = $this->get('FilterForm');
        $this->activeFilters = $this->get('ActiveFilters');

        // Check for errors.
        if (\count($errors = $this->get('Errors'))) {
            throw new GenericDataException(implode("\n", $errors), 500);
        }

        $this->ordering = [];

        // Preprocess the list of items to find ordering divisions.
        foreach ($this->items as $item) {
            $this->ordering[$item->parent_id][] = $item->id;

            // Item type text
            switch ($item->type) {
                case 'url':
                    $value = Text::_('COM_MENUS_TYPE_EXTERNAL_URL');
                    break;

                case 'alias':
                    $value = Text::_('COM_MENUS_TYPE_ALIAS');
                    break;

                case 'separator':
                    $value = Text::_('COM_MENUS_TYPE_SEPARATOR');
                    break;

                case 'heading':
                    $value = Text::_('COM_MENUS_TYPE_HEADING');
                    break;

                case 'container':
                    $value = Text::_('COM_MENUS_TYPE_CONTAINER');
                    break;

                case 'component':
                default:
                    // Load language
                        $lang->load($item->componentname . '.sys', JPATH_ADMINISTRATOR)
                    || $lang->load($item->componentname . '.sys', JPATH_ADMINISTRATOR . '/components/' . $item->componentname);

                    if (!empty($item->componentname)) {
                        $titleParts   = [];
                        $titleParts[] = Text::_($item->componentname);
                        $vars         = null;

                        parse_str($item->link, $vars);

                        if (isset($vars['view'])) {
                            // Attempt to load the view xml file.
                            $file = JPATH_SITE . '/components/' . $item->componentname . '/views/' . $vars['view'] . '/metadata.xml';

                            if (!is_file($file)) {
                                $file = JPATH_SITE . '/components/' . $item->componentname . '/view/' . $vars['view'] . '/metadata.xml';
                            }

                            if (is_file($file) && $xml = simplexml_load_file($file)) {
                                // Look for the first view node off of the root node.
                                if ($view = $xml->xpath('view[1]')) {
                                    // Add view title if present.
                                    if (!empty($view[0]['title'])) {
                                        $viewTitle = trim((string) $view[0]['title']);

                                        // Check if the key is valid. Needed due to B/C so we don't show untranslated keys. This check should be removed with Joomla 4.
                                        if ($lang->hasKey($viewTitle)) {
                                            $titleParts[] = Text::_($viewTitle);
                                        }
                                    }
                                }
                            }

                            $vars['layout'] = $vars['layout'] ?? 'default';

                            // Attempt to load the layout xml file.
                            // If Alternative Menu Item, get template folder for layout file
                            if (strpos($vars['layout'], ':') > 0) {
                                // Use template folder for layout file
                                $temp = explode(':', $vars['layout']);
                                $file = JPATH_SITE . '/templates/' . $temp[0] . '/html/' . $item->componentname . '/' . $vars['view'] . '/' . $temp[1] . '.xml';

                                // Load template language file
                                $lang->load('tpl_' . $temp[0] . '.sys', JPATH_SITE)
                                || $lang->load('tpl_' . $temp[0] . '.sys', JPATH_SITE . '/templates/' . $temp[0]);
                            } else {
                                $base = $this->state->get('filter.client_id') == 0 ? JPATH_SITE : JPATH_ADMINISTRATOR;

                                // Get XML file from component folder for standard layouts
                                $file = $base . '/components/' . $item->componentname . '/tmpl/' . $vars['view']
                                    . '/' . $vars['layout'] . '.xml';

                                if (!file_exists($file)) {
                                    $file = $base . '/components/' . $item->componentname . '/views/'
                                        . $vars['view'] . '/tmpl/' . $vars['layout'] . '.xml';

                                    if (!file_exists($file)) {
                                        $file = $base . '/components/' . $item->componentname . '/view/'
                                            . $vars['view'] . '/tmpl/' . $vars['layout'] . '.xml';
                                    }
                                }
                            }

                            if (is_file($file) && $xml = simplexml_load_file($file)) {
                                // Look for the first view node off of the root node.
                                if ($layout = $xml->xpath('layout[1]')) {
                                    if (!empty($layout[0]['title'])) {
                                        $titleParts[] = Text::_(trim((string) $layout[0]['title']));
                                    }
                                }

                                if (!empty($layout[0]->message[0])) {
                                    $item->item_type_desc = Text::_(trim((string) $layout[0]->message[0]));
                                }
                            }

                            unset($xml);

                            // Special case if neither a view nor layout title is found
                            if (\count($titleParts) == 1) {
                                $titleParts[] = $vars['view'];
                            }
                        }

                        $value = implode(' » ', $titleParts);
                    } else {
                        if (preg_match("/^index.php\?option=([a-zA-Z\-0-9_]*)/", $item->link, $result)) {
                            $value = Text::sprintf('COM_MENUS_TYPE_UNEXISTING', $result[1]);
                        } else {
                            $value = Text::_('COM_MENUS_TYPE_UNKNOWN');
                        }
                    }
                    break;
            }

            $item->item_type = $value;
            $item->protected = $item->menutype == 'main';
        }

        // Levels filter.
        $options   = [];
        $options[] = HTMLHelper::_('select.option', '1', Text::_('J1'));
        $options[] = HTMLHelper::_('select.option', '2', Text::_('J2'));
        $options[] = HTMLHelper::_('select.option', '3', Text::_('J3'));
        $options[] = HTMLHelper::_('select.option', '4', Text::_('J4'));
        $options[] = HTMLHelper::_('select.option', '5', Text::_('J5'));
        $options[] = HTMLHelper::_('select.option', '6', Text::_('J6'));
        $options[] = HTMLHelper::_('select.option', '7', Text::_('J7'));
        $options[] = HTMLHelper::_('select.option', '8', Text::_('J8'));
        $options[] = HTMLHelper::_('select.option', '9', Text::_('J9'));
        $options[] = HTMLHelper::_('select.option', '10', Text::_('J10'));

        $this->f_levels = $options;

        // We don't need toolbar in the modal window.
        if ($this->getLayout() !== 'modal') {
            $this->addToolbar();

            // We do not need to filter by language when multilingual is disabled
            if (!Multilanguage::isEnabled()) {
                unset($this->activeFilters['language']);
                $this->filterForm->removeField('language', 'filter');
            }
        } else {
            // In menu associations modal we need to remove language filter if forcing a language.
            if ($forcedLanguage = Factory::getApplication()->getInput()->get('forcedLanguage', '', 'CMD')) {
                // If the language is forced we can't allow to select the language, so transform the language selector filter into a hidden field.
                $languageXml = new \SimpleXMLElement('<field name="language" type="hidden" default="' . $forcedLanguage . '" />');
                $this->filterForm->setField($languageXml, 'filter', true);

                // Also, unset the active language filter so the search tools is not open by default with this filter.
                unset($this->activeFilters['language']);
            }
        }

        // Allow a system plugin to insert dynamic menu types to the list shown in menus:
        $this->getDispatcher()->dispatch('onBeforeRenderMenuItems', new BeforeRenderMenuItemsViewEvent('onBeforeRenderMenuItems', [
            'subject' => $this,
        ]));

        parent::display($tpl);
    }

    /**
     * Add the page title and toolbar.
     *
     * @return  void
     *
     * @since   1.6
     */
    protected function addToolbar()
    {
        $menutypeId = (int) $this->state->get('menutypeid');

        $canDo = ContentHelper::getActions('com_menus', 'menu', (int) $menutypeId);
        $user  = $this->getCurrentUser();

        // Get the menu title
        $menuTypeTitle = $this->get('State')->get('menutypetitle');

        // Get the toolbar object instance
        $toolbar = Toolbar::getInstance('toolbar');

        if ($menuTypeTitle) {
            ToolbarHelper::title(Text::sprintf('COM_MENUS_VIEW_ITEMS_MENU_TITLE', $menuTypeTitle), 'list menumgr');
        } else {
            ToolbarHelper::title(Text::_('COM_MENUS_VIEW_ITEMS_ALL_TITLE'), 'list menumgr');
        }

        if ($canDo->get('core.create')) {
            $toolbar->addNew('item.add');
        }

        $protected = $this->state->get('filter.menutype') == 'main';

        if (
            ($canDo->get('core.edit.state') || $this->getCurrentUser()->authorise('core.admin')) && !$protected
            || $canDo->get('core.edit.state') && $this->state->get('filter.client_id') == 0
        ) {
            $dropdown = $toolbar->dropdownButton('status-group')
                ->text('JTOOLBAR_CHANGE_STATUS')
                ->toggleSplit(false)
                ->icon('icon-ellipsis-h')
                ->buttonClass('btn btn-action')
                ->listCheck(true);

            $childBar = $dropdown->getChildToolbar();

            if ($canDo->get('core.edit.state') && !$protected) {
                $childBar->publish('items.publish')->listCheck(true);

                $childBar->unpublish('items.unpublish')->listCheck(true);
            }

            if ($this->getCurrentUser()->authorise('core.admin') && !$protected) {
                $childBar->checkin('items.checkin')->listCheck(true);
            }

            if ($canDo->get('core.edit.state') && $this->state->get('filter.published') != -2) {
                if ($this->state->get('filter.client_id') == 0) {
                    $childBar->makeDefault('items.setDefault')->listCheck(true);
                }

                if (!$protected) {
                    $childBar->trash('items.trash')->listCheck(true);
                }
            }

            // Add a batch button
            if (
                !$protected && $user->authorise('core.create', 'com_menus')
                && $user->authorise('core.edit', 'com_menus')
                && $user->authorise('core.edit.state', 'com_menus')
            ) {
                $childBar->popupButton('batch')
                    ->text('JTOOLBAR_BATCH')
                    ->selector('collapseModal')
                    ->listCheck(true);
            }
        }

        if ($this->getCurrentUser()->authorise('core.admin')) {
            $toolbar->standardButton('refresh')
                ->text('JTOOLBAR_REBUILD')
                ->task('items.rebuild');
        }

        if (!$protected && $this->state->get('filter.published') == -2 && $canDo->get('core.delete')) {
            $toolbar->delete('items.delete')
                ->text('JTOOLBAR_EMPTY_TRASH')
                ->message('JGLOBAL_CONFIRM_DELETE')
                ->listCheck(true);
        }

        if ($canDo->get('core.admin') || $canDo->get('core.options')) {
            $toolbar->preferences('com_menus');
        }

        $toolbar->help('Menus:_Items');
    }
}
