<?php

namespace App\Command;

use App\BusProNet\DataProvider\HotelDataProvider;
use App\BusProNet\DataProvider\PickupDataProvider;
use Doctrine\DBAL\Connection;
use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\Finder\Finder;

#[AsCommand(
    name: 'app:bpn-import',
    description: 'Imports dates, products and hotels from BusProNet',
)]
class BpnImportCommand extends Command
{
    public function __construct(
        private readonly Connection $connection,
        private readonly HotelDataProvider $hotelDataProvider,
        private readonly PickupDataProvider $pickupDataProvider,
        private readonly string $xmlFilesPath
    ) {
        parent::__construct();
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $io = new SymfonyStyle($input, $output);

        // Get all xml files
        $xmlFiles = (new Finder())
            ->name('Ziel_*.xml')
            ->in($this->xmlFilesPath)
        ;

        $totalCount = count($xmlFiles);

        if (0 === $totalCount) {
            $io->error('No XML files available or found');

            return Command::FAILURE;
        }

        // Flush dates
        $this
            ->connection
            ->executeQuery('TRUNCATE TABLE bpn_date')
        ;

        $io->info('Found '.$totalCount.' XML files');
        $datesCount = 0;

        // Iterate over xml files
        foreach ($xmlFiles as $xmlFile) {

            // Load xml file into simplexml object
            $xml = simplexml_load_file($xmlFile);

            // Iterate over all dates
            foreach ($xml->xpath('reise/termin') as $dateXml) {
                $product = (string) $dateXml->xpath('text')[0];
                $busProId = (int) $dateXml->attributes()['idbuspro'];
                $code = (string) $dateXml->attributes()['code'];
                $dateFrom = \DateTimeImmutable::createFromFormat('d.m.Y', (string) $dateXml->attributes()['termin']);
                $dateTo = \DateTimeImmutable::createFromFormat('d.m.Y', (string) $dateXml->attributes()['bis']);
                $bus = false;

                // Iterate over all service entries and look for 'bus'
                foreach ($dateXml->xpath('lei_befoerderung/leistung') as $serviceXml) {
                    if ('BUS' === (string) $serviceXml->attributes()['unterart']) {
                        $bus = true;
                        break;
                    }
                }

                // Find pickups
                $datePickups = [];
                foreach ($dateXml->xpath('zustiege/zustieg') as $pickupXml) {
                    $pickupBusProId = (int) $pickupXml->attributes()['idbuspro'];
                    if ($pickupBusProId) {
                        $pickup = $this->pickupDataProvider->get($pickupBusProId);
                        $datePickups[] = [
                            'busProId' => $pickupBusProId,
                            'city' => $pickup->getCity(),
                            'street' => $pickup->getStreet(),
                            'time' => (string) $pickupXml->attributes()['zeit'],
                        ];
                    }
                }

                // Iterate over all hotel entries
                foreach ($dateXml->xpath('hotel') as $hotelXml) {
                    $hotelBusProId = (int) $hotelXml->attributes()['idbuspro'];
                    $hotel = $this->hotelDataProvider->get($hotelBusProId);

                    // Finally store collected data
                    $this
                        ->connection
                        ->insert('bpn_date', [
                            'code' => $code,
                            'bus_pro_id' => $busProId,
                            'date_from' => $dateFrom->format('Y-m-d'),
                            'date_to' => $dateTo->format('Y-m-d'),
                            'product' => $product,
                            'hotel' => $hotel->getName(),
                            'hotel_code' => $hotel->getCode(),
                            'hotel_bus_pro_id' => $hotelBusProId,
                            'bus' => (int) $bus,
                            'pickups' => json_encode($datePickups),
                        ])
                    ;
                    ++$datesCount;
                }
            }
        }

        $io->info('Imported '.$datesCount.' dates');

        return Command::SUCCESS;
    }
}