<?php

declare(strict_types=1);

namespace Mummert\SurveyBundle\Service;

use Mummert\SurveyBundle\Model\SurveyContentModel;
use Mummert\SurveyBundle\Model\SurveyModel;
use Mummert\SurveyBundle\Repository\SurveyConditionRepository;
use Mummert\SurveyBundle\Repository\SurveyQuestionRepository;

final class SurveyEngine
{
    public function __construct(
        private readonly SurveyConditionRepository $surveyConditionRepository,
        private readonly SurveyQuestionRepository $surveyQuestionRepository,
    ) {
    }

    public function resolveConditionalTarget(SurveyModel $survey, SurveyContentModel $sourceQuestion, string $normalizedAnswer): ?SurveyContentModel
    {
        $condition = $this->surveyConditionRepository->findMatchingCondition(
            (int) $survey->id,
            (int) $sourceQuestion->id,
            mb_strtolower(trim($normalizedAnswer)),
        );

        if (null === $condition) {
            return null;
        }

        return $this->surveyQuestionRepository->findByIdForSurvey(
            (int) $survey->id,
            (int) $condition->targetQuestion,
            false,
        );
    }
}