<?php

declare(strict_types=1);

namespace App\BusProNet\XmlParser;

use App\BusProNet\Model\ExtendedAvailability;
use App\BusProNet\Model\ExtendedServiceAvailabilityResponse;
use Symfony\Component\DomCrawler\Crawler;

/**
 * Parser for VERFUEGBARKEIT2 service payloads.
 *
 * Extracts extended service-level attributes (dates, times, hints, constraints)
 * plus optional travel-level booking-status metadata.
 */
class ExtendedAvailabilitiesParser extends AbstractParser
{
    /**
     * Parses extended availability services from API result node.
     */
    public function parseServices(Crawler $result): ExtendedServiceAvailabilityResponse
    {
        $availabilities = [];

        $result
            ->filterXPath('//leistungen/leistung')
            ->each(function (Crawler $node) use (&$availabilities) {
                $serviceId = (int) $node->attr('id');

                $availability = new ExtendedAvailability();
                $availability->serviceId = $serviceId;
                $availability->status = $node->attr('status');
                $availability->available = (int) $node->attr('frei');
                $availability->price = $this->stringToFloat($node->attr('preis'));
                $availability->dateFrom = $this->stringToDate($node->attr('termin'));
                $availability->dateTo = $this->stringToDate($node->attr('bis'));
                $availability->timeFrom = $node->attr('uhrzeit_von');
                $availability->description = $node->attr('hinweis');

                $ageFrom = $node->attr('altervon');
                if (null !== $ageFrom && '' !== trim($ageFrom)) {
                    $availability->ageFrom = (int) $ageFrom;
                }

                $ageTo = $node->attr('alterbis');
                if (null !== $ageTo && '' !== trim($ageTo)) {
                    $availability->ageTo = (int) $ageTo;
                }

                $mandatory = $node->attr('pflicht');
                if (null !== $mandatory && '' !== trim($mandatory)) {
                    $availability->mandatory = $this->stringToBool($mandatory);
                }

                $availabilities[$serviceId] = $availability;
            })
        ;

        $allowedBookingStatus = [];
        $travelStatus = null;
        $reiseNode = $result->filterXPath('//reise');

        if (0 < $reiseNode->count()) {
            $travelStatus = $reiseNode->attr('status');

            $bookingStatusPossible = $reiseNode->attr('buchungstatusmoeglich') ?? '';
            if ('' !== trim($bookingStatusPossible)) {
                $allowedBookingStatus = str_split($bookingStatusPossible);
            }
        }

        return new ExtendedServiceAvailabilityResponse($availabilities, $allowedBookingStatus, $travelStatus);
    }
}