<?php

namespace App\BusProNet\XmlLoader;

use App\BusProNet\Model\Pickup;
use App\BusProNet\Model\Travel;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\DomCrawler\Crawler;
use Symfony\Contracts\Cache\ItemInterface;

class PickupLoader extends AbstractLoader
{
    public function loadAll(?string $filename = 'zustiege.xml'): array
    {
        try {
            return $this->cache->get('bpn_pickups', function (ItemInterface $item) use ($filename) {
                $item->expiresAfter(3 * 60 * 60);

                $crawler = new Crawler(file_get_contents($this->xmlPath . '/' . $filename));
                $pickupNodes = $crawler->filterXPath('//zustiege/zustieg');

                $pickups = [];

                $pickupNodes->each(function (Crawler $node) use (&$pickups) {
                    $id = $node->attr('idbuspro');
                    $pickups[$id] = $this->parseXml($node);
                });

                return $pickups;
            });
        } catch (InvalidArgumentException $e) {
            return [];
        }
    }

    public function loadById(int $id, ?string $filename = 'zustiege.xml'): ?Pickup
    {
        $pickups = $this->loadAll($filename);

        return $pickups[$id] ?? null;
    }

    public function parseXml(Crawler $node): Pickup
    {
        $pickup = new Pickup();
        $pickup->id = (int) $node->attr('idbuspro');
        $pickup->code = $node->attr('code');
        $pickup->city = $this->getStringOrNullValue($node->filterXPath('//ort'));
        $pickup->postalCode = $this->getStringOrNullValue($node->filterXPath('//plz'));
        $pickup->street = $this->getStringOrNullValue($node->filterXPath('//strasse'));

        return $pickup;
    }

    public function patchPickupsDetails(Travel $travel): void
    {
        foreach ($travel->pickupsTo as $pickupId => $pickup) {
            $pickupData = $this->loadById($pickupId);

            $pickup->code = $pickupData->code;
            $pickup->postalCode = $pickupData->postalCode;
            $pickup->city = $pickupData->city;
            $pickup->street = $pickupData->street;
        }
        foreach ($travel->pickupsFro as $pickupId => $pickup) {
            $pickupData = $this->loadById($pickupId);

            $pickup->code = $pickupData->code;
            $pickup->postalCode = $pickupData->postalCode;
            $pickup->city = $pickupData->city;
            $pickup->street = $pickupData->street;
        }
    }
}