<?php

/*
 * SPDX-License-Identifier: MIT
 * SPDX-FileCopyrightText: (c) Respect Project Contributors
 * SPDX-FileContributor: Henrique Moody <henriquemoody@gmail.com>
 */

declare(strict_types=1);

namespace Respect\Dev\Commands;

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\VarExporter\VarExporter;

use function basename;
use function count;
use function dirname;
use function explode;
use function file_get_contents;
use function file_put_contents;
use function implode;
use function sprintf;
use function str_starts_with;
use function trim;

use const PHP_EOL;

#[AsCommand(
    name: 'update:domain-toplevel',
    description: 'Update list of Top Level Domains (TLD) in the Tld validator',
)]
final class UpdateDomainToplevelCommand extends Command
{
    private const string LIST_URL = 'https://data.iana.org/TLD/tlds-alpha-by-domain.txt';

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

        $io->title('Updating TLD list');

        // Download the list
        $io->section('Downloading list');
        $io->text(sprintf('Fetching from: %s', self::LIST_URL));

        $listContent = file_get_contents(self::LIST_URL);
        if ($listContent === false) {
            $io->error('Failed to download TLD list');

            return Command::FAILURE;
        }

        $io->success('Downloaded successfully');

        // Process the list
        $io->section('Processing TLD list');

        $lines = explode("\n", trim($listContent));
        $tlds = [];
        foreach ($lines as $line) {
            $line = trim($line);
            if ($line === '' || str_starts_with($line, '#')) {
                continue;
            }

            $tlds[] = $line;
        }

        // Create the data file
        $dataFilename = dirname(__DIR__, 2) . '/data/domain/tld.php';

        $SPDX = '// SPDX';

        $fileContent = implode(PHP_EOL, [
            '<?php declare(strict_types=1);',
            $SPDX . '-FileCopyrightText: (c) https://data.iana.org/TLD/',
            $SPDX . '-License-Identifier: MPL-2.0',
            'return ' . VarExporter::export($tlds) . ';' . PHP_EOL,
        ]);

        // Write the data file
        if (file_put_contents($dataFilename, $fileContent) === false) {
            $io->error('Failed to write data file');

            return Command::FAILURE;
        }

        $io->success(sprintf('Updated %s successfully', basename($dataFilename)));
        $io->text(sprintf('Total TLDs: %d', count($tlds)));

        return Command::SUCCESS;
    }
}