<?php
/**
 * @package         Regular Labs Library
 * @version         23.5.7450
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            http://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

defined('_JEXEC') or die;

use Joomla\CMS\HTML\HTMLHelper as JHtml;
use Joomla\CMS\Language\Text as JText;
use RegularLabs\Library\FieldGroup;
use RegularLabs\Library\Form as RL_Form;

if ( ! is_file(JPATH_LIBRARIES . '/regularlabs/autoload.php'))
{
    return;
}

require_once JPATH_LIBRARIES . '/regularlabs/autoload.php';

class JFormFieldRL_Zoo extends FieldGroup
{
    public $type = 'Zoo';

    public function getCategories()
    {
        $query = $this->db->getQuery(true)
            ->select('COUNT(*)')
            ->from('#__zoo_category AS c')
            ->where('c.published > -1');
        $this->db->setQuery($query);
        $total = $this->db->loadResult();

        if ($total > $this->max_list_count)
        {
            return -1;
        }

        $options = [];
        if ($this->get('show_ignore'))
        {
            if (in_array('-1', $this->value))
            {
                $this->value = ['-1'];
            }
            $options[] = JHtml::_('select.option', '-1', '- ' . JText::_('RL_IGNORE') . ' -');
            $options[] = JHtml::_('select.option', '-', '&nbsp;', 'value', 'text', true);
        }

        $query->clear()
            ->select('a.id, a.name')
            ->from('#__zoo_application AS a')
            ->order('a.name, a.id');
        $this->db->setQuery($query);
        $apps = $this->db->loadObjectList();

        foreach ($apps as $i => $app)
        {
            $query->clear()
                ->select('c.id, c.parent AS parent_id, c.name AS title, c.published')
                ->from('#__zoo_category AS c')
                ->where('c.application_id = ' . (int) $app->id)
                ->where('c.published > -1')
                ->order('c.ordering, c.name');
            $this->db->setQuery($query);
            $items = $this->db->loadObjectList();

            if ($i)
            {
                $options[] = JHtml::_('select.option', '-', '&nbsp;', 'value', 'text', true);
            }

            // establish the hierarchy of the menu
            // TODO: use node model
            $children = [];

            if ($items)
            {
                // first pass - collect children
                foreach ($items as $v)
                {
                    $pt   = $v->parent_id;
                    $list = @$children[$pt] ?: [];
                    array_push($list, $v);
                    $children[$pt] = $list;
                }
            }

            // second pass - get an indent list of the items
            $list = JHtml::_('menu.treerecurse', 0, '', [], $children, 9999, 0, 0);

            // assemble items to the array
            $options[] = JHtml::_('select.option', 'app' . $app->id, '[' . $app->name . ']');
            foreach ($list as $item)
            {
                $item->treename = '  ' . str_replace('&#160;&#160;- ', '  ', $item->treename);
                $item->treename = RL_Form::prepareSelectItem($item->treename, $item->published);
                $option         = JHtml::_('select.option', $item->id, $item->treename);
                $option->level  = 1;
                $options[]      = $option;
            }
        }

        return $options;
    }

    public function getItems()
    {
        $query = $this->db->getQuery(true)
            ->select('COUNT(*)')
            ->from('#__zoo_item AS i')
            ->where('i.state > -1');
        $this->db->setQuery($query);
        $total = $this->db->loadResult();

        if ($total > $this->max_list_count)
        {
            return -1;
        }

        $query->clear('select')
            ->select('i.id, i.name, a.name as cat, i.state as published')
            ->join('LEFT', '#__zoo_application AS a ON a.id = i.application_id')
            ->group('i.id')
            ->order('i.name, i.priority, i.id');
        $this->db->setQuery($query);
        $list = $this->db->loadObjectList();

        return $this->getOptionsByList($list, ['cat', 'id']);
    }

    protected function getInput()
    {
        $error = $this->missingFilesOrTables(['applications' => 'application', 'categories' => 'category', 'items' => 'item']);
        if ($error)
        {
            return $error;
        }

        return $this->getSelectList();
    }
}