<?php

namespace App\Command;

use App\Domain\InvalidPage;
use App\Ops\Backup;
use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;

#[AsCommand(name: 'cms:backup', description: 'Writes a backup of database and media, and rotates the old ones. Meant for a daily cron job.')]
final class BackupCommand extends Command
{
    public function __construct(private Backup $backup)
    {
        parent::__construct();
    }

    protected function configure(): void
    {
        $this->addOption('keep', null, InputOption::VALUE_REQUIRED, 'Wie viele Sicherungen aufbewahrt werden.', (string) Backup::KEEP)
            ->addOption('list', null, InputOption::VALUE_NONE, 'Nur auflisten, was vorhanden ist.');
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $io = new SymfonyStyle($input, $output);
        if ($input->getOption('list')) {
            $rows = array_map(
                static fn (array $backup): array => [
                    $backup['name'],
                    $backup['manifest']['erstellt'] ?? '?',
                    $backup['manifest']['fassung'] ?? '?',
                    round($backup['bytes'] / 1048576, 1).' MB',
                    $backup['intact'] ? 'ok' : 'PRÜFSUMME FALSCH',
                ],
                $this->backup->all(),
            );
            [] === $rows ? $io->writeln('Noch keine Sicherung vorhanden.') : $io->table(['Name', 'Erstellt', 'Fassung', 'Größe', 'Zustand'], $rows);

            return Command::SUCCESS;
        }

        try {
            $result = $this->backup->create('Konsole');
        } catch (InvalidPage $error) {
            $io->error($error->getMessage());

            return Command::FAILURE;
        }
        $removed = $this->backup->rotate((int) $input->getOption('keep'));
        $io->success(sprintf(
            '%s angelegt: %d Seite(n), %d Fassung(en), %d Mediendatei(en).%s',
            $result['name'],
            $result['manifest']['inhalt']['seiten'],
            $result['manifest']['inhalt']['fassungen'],
            $result['manifest']['medien']['dateien'],
            [] === $removed ? '' : ' Entfernt: '.implode(', ', $removed).'.',
        ));
        $io->writeln('Nicht enthalten: .env, vendor/ und der Quellcode – die kommen aus dem Repository.');

        return Command::SUCCESS;
    }
}