<?php
/**
 * @package         Regular Labs Library
 * @version         23.10.17780
 * 
 * @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\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;

class TemplatesField extends RL_FormField
{
    public bool $collapse_children = true;
    public bool $is_select_list    = true;
    public bool $use_ajax          = true;
    public bool $use_tree_select   = true;

    public function getNamesByIds($values, $attributes)
    {
        if (empty($values))
        {
            return [];
        }

        $query = $this->db->getQuery(true)
            ->select('e.name, e.element as template')
            ->from('#__extensions as e')
            ->where('e.enabled=1')
            ->where($this->db->quoteName('e.type') . '=' . $this->db->quote('template'))
            ->where(RL_DB::is('e.name', $values))
            ->order('e.name');

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

        $query = $this->db->getQuery(true)
            ->select('s.title, e.name as template_name, s.template')
            ->from('#__template_styles as s')
            ->join('LEFT', '#__extensions as e on e.element = s.template')
            ->where(RL_DB::is('s.client_id', 0))
            ->where(RL_DB::is('e.enabled', 1))
            ->where(RL_DB::is('e.type', 'template'))
            ->where(RL_DB::in('CONCAT(e.name, "--", s.id)', $values))
            ->order('s.template')
            ->order('s.title');

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

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

        $names = [];

        foreach ($templates as $template)
        {
            $lang->load('tpl_' . $template->template . '.sys', JPATH_SITE)
            || $lang->load('tpl_' . $template->template . '.sys', JPATH_SITE . '/templates/' . $template->template);

            $names[] = JText::_($template->name);
        }

        foreach ($styles as $style)
        {
            $lang->load('tpl_' . $style->template . '.sys', JPATH_SITE)
            || $lang->load('tpl_' . $style->template . '.sys', JPATH_SITE . '/templates/' . $style->template);

            $names[] = '[' . JText::_($style->template_name) . '] ' . JText::_($style->title);
        }

        return $names;
    }

    protected function getOptions()
    {
        $options = [];

        $templates = $this->getTemplates();

        foreach ($templates as $styles)
        {
            $level = 0;

            foreach ($styles as $style)
            {
                $style->level = $level;
                $options[]    = $style;

                if (count($styles) <= 2)
                {
                    break;
                }

                $level = 1;
            }
        }

        return $options;
    }

    protected function getTemplates()
    {
        $query = $this->db->getQuery(true)
            ->select('s.id, s.title, e.name as name, s.template')
            ->from('#__template_styles as s')
            ->where('s.client_id = 0')
            ->join('LEFT', '#__extensions as e on e.element=s.template')
            ->where('e.enabled=1')
            ->where($this->db->quoteName('e.type') . '=' . $this->db->quote('template'))
            ->order('s.template')
            ->order('s.title');

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

        if (empty($styles))
        {
            return [];
        }

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

        $groups = [];

        foreach ($styles as $style)
        {
            $template = $style->template;
            $lang->load('tpl_' . $template . '.sys', JPATH_SITE)
            || $lang->load('tpl_' . $template . '.sys', JPATH_SITE . '/templates/' . $template);
            $name = JText::_($style->name);

            if ( ! isset($groups[$template]))
            {
                $groups[$template]   = [];
                $groups[$template][] = JHtml::_('select.option', $template, $name);
            }

            $groups[$template][] = JHtml::_('select.option', $template . '--' . $style->id, $style->title);
        }

        return $groups;
    }
}