<?php

namespace Komponent\Component\Testquestions\Administrator\Model;

defined('_JEXEC') or die;

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

class PreviewModel extends BaseDatabaseModel
{
    public function getSet()
    {
        $setId = Factory::getApplication()->getInput()->getInt('set_id');
        if ($setId < 1) {
            return null;
        }

        $db = Factory::getContainer()->get('DatabaseDriver');

        return $db->setQuery(
            $db->getQuery(true)
                ->select(['id', 'title', 'test_content', 'image'])
                ->from($db->quoteName('#__testquestions_sets'))
                ->where($db->quoteName('id') . ' = ' . $setId)
        )->loadObject();
    }

    public function getItems(): array
    {
        $input = Factory::getApplication()->getInput();
        $setId = $input->getInt('set_id');
        $db = Factory::getContainer()->get('DatabaseDriver');

        if ($setId > 0) {
            return $db->setQuery(
                $db->getQuery(true)
                    ->select(['q.id', 'q.question_type', 'q.question', 'q.answer_a', 'q.answer_b', 'q.answer_c', 'q.answer_d', 'q.answer_open', 'q.correct_answer', 'q.image'])
                    ->from($db->quoteName('#__testquestions_set_questions', 'sq'))
                    ->innerJoin($db->quoteName('#__testquestions_questions', 'q') . ' ON q.id = sq.question_id')
                    ->where('sq.set_id = ' . $setId)
                    ->where('q.published = 1')
                    ->order('sq.ordering ASC, q.id ASC')
            )->loadObjectList();
        }

        $ids = array_values(array_unique(array_filter(array_map('intval', explode(',', $input->getString('ids', ''))))));

        if (!$ids) {
            return [];
        }

        $rows = $db->setQuery(
            $db->getQuery(true)
                ->select(['id', 'question_type', 'question', 'answer_a', 'answer_b', 'answer_c', 'answer_d', 'answer_open', 'correct_answer', 'image'])
                ->from($db->quoteName('#__testquestions_questions'))
                ->where($db->quoteName('id') . ' IN (' . implode(',', $ids) . ')')
        )->loadObjectList('id');

        $items = [];
        foreach ($ids as $id) {
            if (isset($rows[$id])) {
                $items[] = $rows[$id];
            }
        }

        return $items;
    }
}