<?php

namespace Komponent\Component\Testquestions\Site\Model;

defined('_JEXEC') or die;

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

class SetModel extends BaseDatabaseModel
{
    protected function getSetId(): int
    {
        $application = Factory::getApplication();
        $menu = $application->getMenu()->getActive();
        $menuSetId = $menu ? (int) $menu->getParams()->get('set_id', 0) : 0;

        return $application->getInput()->getInt('set_id', $menuSetId);
    }

    public function getSet()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        $setId = $this->getSetId();

        if ($setId < 1) {
            return null;
        }

        return $db->setQuery(
            $db->getQuery(true)
                ->select(['s.*', 'sub.title AS subject_title'])
                ->from($db->quoteName('#__testquestions_sets', 's'))
                ->leftJoin($db->quoteName('#__testquestions_subjects', 'sub') . ' ON sub.id = s.subject_id')
                ->where('s.id = ' . $setId)
                ->where('s.published = 1')
        )->loadObject();
    }

    public function getItems()
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        $setId = $this->getSetId();

        if ($setId < 1) {
            return [];
        }

        return $db->setQuery(
            $db->getQuery(true)
                ->select(['q.id', 'q.question_type', 'q.question', 'q.answer_a', 'q.answer_b', 'q.answer_c', 'q.answer_d', 'q.answer_open', 'q.correct_answer', 'q.points', 'q.image'])
                ->from($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();
    }

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

        return $db->setQuery(
            $db->getQuery(true)
                ->select(['s.id', 's.title', 'sub.title AS subject_title'])
                ->from($db->quoteName('#__testquestions_sets', 's'))
                ->leftJoin($db->quoteName('#__testquestions_subjects', 'sub') . ' ON sub.id = s.subject_id')
                ->where('s.published = 1')
                ->order('sub.title ASC, s.title ASC')
        )->loadObjectList();
    }

    public function saveResult(string $participantName, int $extraTime, int $startedAt, array $result): bool
    {
        $db = Factory::getContainer()->get('DatabaseDriver');
        $setId = $this->getSetId();
        $user = Factory::getApplication()->getIdentity();

        if ($setId < 1 || trim($participantName) === '') {
            return false;
        }

        $pointsBefore = 0;
        $pointsTotal = 0;
        foreach (($result['items'] ?? []) as $item) {
            $pointsTotal += (int) ($item['points'] ?? 0);
            if (!empty($item['correct'])) {
                $pointsBefore += (int) ($item['points'] ?? 0);
            }
        }

        $row = (object) [
            'set_id' => $setId,
            'participant_name' => trim($participantName),
            'started' => $startedAt > 0 ? gmdate('Y-m-d H:i:s', $startedAt) : null,
            'execution_time' => $startedAt > 0 ? max(0, time() - $startedAt) : 0,
            'extra_time' => max(0, $extraTime),
            'correct_count' => (int) ($result['correct'] ?? 0),
            'total_count' => (int) ($result['total'] ?? 0),
            'percentage' => (float) ($result['percentage'] ?? 0),
            'points_total' => $pointsTotal,
            'points_before' => $pointsBefore,
            'points_after' => $pointsBefore,
            'answers' => json_encode($result['items'] ?? [], JSON_UNESCAPED_UNICODE),
            'created' => Factory::getDate()->toSql(),
            'created_by' => $user ? (int) $user->id : 0,
        ];

        return (bool) $db->insertObject('#__testquestions_results', $row);
    }
}