<?php

namespace Komponent\Component\Testquestions\Administrator\Model;

defined('_JEXEC') or die;

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

class SetsModel extends ListModel
{
    protected function populateState($ordering = 's.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.subject_id', $this->getUserStateFromRequest($this->context . '.filter.subject_id', 'filter_subject_id', '', 'int'));
    }

    protected function getListQuery()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        $query = $db->getQuery(true)
            ->select(['s.*', 'sub.title AS subject_title', 'COUNT(sq.question_id) AS question_count'])
            ->from($db->quoteName('#__testquestions_sets', 's'))
            ->leftJoin($db->quoteName('#__testquestions_subjects', 'sub') . ' ON sub.id = s.subject_id')
            ->leftJoin($db->quoteName('#__testquestions_set_questions', 'sq') . ' ON sq.set_id = s.id')
            ->group('s.id');

        $search = trim((string) $this->getState('filter.search'));
        if ($search !== '') {
            $query->where('s.title LIKE ' . $db->quote('%' . $db->escape($search, true) . '%', false));
        }

        $published = $this->getState('filter.published');
        if ($published !== '' && $published !== null) {
            $query->where('s.published = ' . (int) $published);
        }

        if ((int) $this->getState('filter.subject_id') > 0) {
            $query->where('s.subject_id = ' . (int) $this->getState('filter.subject_id'));
        }

        return $query->order('s.ordering ASC, s.title ASC');
    }

    public function getSubjects()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');

        return $db->setQuery(
            $db->getQuery(true)
                ->select(['id', 'title'])
                ->from($db->quoteName('#__testquestions_subjects'))
                ->where($db->quoteName('published') . ' = 1')
                ->order($db->quoteName('title') . ' ASC')
        )->loadObjectList();
    }
}