<?php

namespace Komponent\Component\Testquestions\Administrator\Model;

defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Model\ListModel;

class QuestionsModel extends ListModel
{
    protected function populateState($ordering = 'ordering', $direction = 'asc')
    {
        parent::populateState($ordering, $direction);
        $this->setState('filter.search', $this->getUserStateFromRequest(
            $this->context . '.filter.search', 'filter_search', '', 'string'
        ));
        $this->setState('filter.published', $this->getUserStateFromRequest(
            $this->context . '.filter.published', 'filter_published', '', 'string'
        ));
        $this->setState('filter.category_id', $this->getUserStateFromRequest(
            $this->context . '.filter.category_id', 'filter_category_id', '', 'int'
        ));
        $this->setState('filter.show_answers', $this->getUserStateFromRequest(
            $this->context . '.filter.show_answers', 'filter_show_answers', '0', 'int'
        ));
    }

    protected function getListQuery()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        $query = $db->getQuery(true)
            ->select('q.*, c.title AS category_title')
            ->from($db->quoteName('#__testquestions_questions', 'q'))
            ->leftJoin($db->quoteName('#__testquestions_categories', 'c') . ' ON c.id = q.category_id');
        $search = trim((string) $this->getState('filter.search'));
        $published = $this->getState('filter.published');

        if ($search !== '') {
            $search = '%' . $db->escape($search, true) . '%';
            $query->where($db->quoteName('q.question') . ' LIKE ' . $db->quote($search, false));
        }
        if ($published !== '' && $published !== null) {
            $query->where($db->quoteName('q.published') . ' = ' . (int) $published);
        }
        if ((int) $this->getState('filter.category_id') > 0) {
            $query->where('q.category_id = ' . (int) $this->getState('filter.category_id'));
        }

        return $query->order($db->quoteName('q.' . $this->getState('list.ordering', 'ordering')) . ' '
            . $db->escape($this->getState('list.direction', 'ASC')));
    }

    public function getCategories()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        return $db->setQuery(
            $db->getQuery(true)
                ->select(['id', 'title'])
                ->from($db->quoteName('#__testquestions_categories'))
                ->where($db->quoteName('published') . ' = 1')
                ->order($db->quoteName('ordering') . ' ASC, ' . $db->quoteName('title') . ' ASC')
        )->loadObjectList();
    }
}