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<?php
/**
 * @package         Regular Labs Library
 * @version         23.12.1338
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

namespace RegularLabs\Library\Form\Field;

defined('_JEXEC') or die;

use Joomla\CMS\Filesystem\Folder as JFolder;
use Joomla\CMS\HTML\HTMLHelper as JHtml;
use Joomla\CMS\Language\Text as JText;
use RegularLabs\Library\DB as RL_DB;
use RegularLabs\Library\Form\FormField as RL_FormField;
use RegularLabs\Library\RegEx as RL_RegEx;

class ComponentsField extends RL_FormField
{
    static      $components;
    public      $attributes     = [
        'frontend' => true,
        'admin'    => true,
    ];
    public bool $is_select_list = true;
    public bool $use_ajax       = true;

    public function getNamesByIds(array $values, array $attributes): array
    {
        $query = $this->db->getQuery(true)
            ->select('e.name, e.element')
            ->from('#__extensions AS e')
            ->where('e.type = ' . $this->db->quote('component'))
            ->where(RL_DB::is('e.element', $values))
            ->order('e.name');

        $this->db->setQuery($query);
        $components = $this->db->loadObjectList();

        $lang = $this->app->getLanguage();

        $names = [];

        foreach ($components as $component)
        {
            $name = $component->name;

            if ( ! str_contains($component->name, ' '))
            {
                // Load the core file then
                // Load extension-local file.
                $lang->load($component->element . '.sys', JPATH_BASE, null, false, false)
                || $lang->load($component->element . '.sys', JPATH_ADMINISTRATOR . '/components/' . $component->element, null, false, false)
                || $lang->load($component->element . '.sys', JPATH_BASE, $lang->getDefault(), false, false)
                || $lang->load($component->element . '.sys', JPATH_ADMINISTRATOR . '/components/' . $component->element, $lang->getDefault(), false, false);

                $name = JText::_(strtoupper($name));
            }

            $names[] = $name;
        }

        return $names;
    }

    protected function getListOptions(array $attributes): array
    {
        $frontend = $attributes['frontend'];
        $admin    = $attributes['admin'];

        if ( ! $frontend && ! $admin)
        {
            return [];
        }

        $components = $this->getComponents();

        $comps = [];
        $lang  = $this->app->getLanguage();

        foreach ($components as $component)
        {
            if (empty($component->element))
            {
                continue;
            }

            $component_folder = ($frontend ? JPATH_SITE : JPATH_ADMINISTRATOR) . '/components/' . $component->element;

            if ( ! JFolder::exists($component_folder) && $admin)
            {
                $component_folder = JPATH_ADMINISTRATOR . '/components/' . $component->element;
            }

            // return if there is no main component folder
            if ( ! JFolder::exists($component_folder))
            {
                continue;
            }

            // return if there is no view(s) folder
            if (
                $component->element !== 'com_ajax'
                && ! JFolder::exists($component_folder . '/src/View')
                && ! JFolder::exists($component_folder . '/views')
                && ! JFolder::exists($component_folder . '/view')
            )
            {
                continue;
            }

            if ( ! str_contains($component->name, ' '))
            {
                // Load the core file then
                // Load extension-local file.
                $lang->load($component->element . '.sys', JPATH_BASE, null, false, false)
                || $lang->load($component->element . '.sys', JPATH_ADMINISTRATOR . '/components/' . $component->element, null, false, false)
                || $lang->load($component->element . '.sys', JPATH_BASE, $lang->getDefault(), false, false)
                || $lang->load($component->element . '.sys', JPATH_ADMINISTRATOR . '/components/' . $component->element, $lang->getDefault(), false, false);

                $component->name = JText::_(strtoupper($component->name));
            }

            $comps[RL_RegEx::replace('[^a-z0-9_]', '', $component->name . '_' . $component->element)] = $component;
        }

        ksort($comps);

        $options = [];

        foreach ($comps as $component)
        {
            $key = $component->element;

            if ($this->get('no_com_prefix'))
            {
                $key = RL_RegEx::replace('^com_', '', $key);
            }

            $options[] = JHtml::_('select.option', $key, $component->name);
        }

        return $options;
    }

    private function getComponents(): array
    {
        if ( ! is_null(self::$components))
        {
            return self::$components;
        }

        $query = $this->db->getQuery(true)
            ->select('e.name, e.element')
            ->from('#__extensions AS e')
            ->where('e.type = ' . $this->db->quote('component'))
            ->where('e.name != ""')
            ->where('e.element != ""')
            ->group('e.element')
            ->order('e.element, e.name');
        $this->db->setQuery($query);
        self::$components = $this->db->loadObjectList();

        return self::$components;
    }
}