<?php

declare(strict_types=1);

namespace BrowscapPHP\Command;

use BrowscapPHP\BrowscapUpdater;
use BrowscapPHP\Exception\ErrorCachedVersionException;
use BrowscapPHP\Exception\FetcherException;
use BrowscapPHP\Helper\IniLoaderInterface;
use BrowscapPHP\Helper\LoggerHelper;
use League\Flysystem\Filesystem;
use League\Flysystem\Local\LocalFilesystemAdapter;
use MatthiasMullie\Scrapbook\Adapters\Flysystem;
use MatthiasMullie\Scrapbook\Psr16\SimpleCache;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\InvalidArgumentException;
use Symfony\Component\Console\Exception\LogicException;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Throwable;

use function assert;
use function is_string;
use function sprintf;

/**
 * Command to fetch a browscap ini file from the remote host, convert it into an array and store the content in a local
 * file
 *
 * @internal This extends Symfony API, and we do not want to expose upstream BC breaks, so we DO NOT promise BC on this
 */
class UpdateCommand extends Command
{
    private ?string $defaultCacheFolder = null;

    /**
     * @throws LogicException
     */
    public function __construct(string $defaultCacheFolder)
    {
        $this->defaultCacheFolder = $defaultCacheFolder;

        parent::__construct();
    }

    /**
     * @throws InvalidArgumentException
     */
    protected function configure(): void
    {
        $this
            ->setName('browscap:update')
            ->setDescription('Fetches an updated INI file for Browscap and overwrites the current PHP file.')
            ->addOption(
                'remote-file',
                'r',
                InputOption::VALUE_OPTIONAL,
                sprintf(
                    'browscap.ini file to download from remote location (possible values are: %s, %s, %s)',
                    IniLoaderInterface::PHP_INI_LITE,
                    IniLoaderInterface::PHP_INI,
                    IniLoaderInterface::PHP_INI_FULL
                ),
                IniLoaderInterface::PHP_INI
            )
            ->addOption(
                'no-backup',
                null,
                InputOption::VALUE_NONE,
                'Do not backup the previously existing file'
            )
            ->addOption(
                'cache',
                'c',
                InputOption::VALUE_OPTIONAL,
                'Where the cache files are located',
                $this->defaultCacheFolder
            );
    }

    /**
     * @throws InvalidArgumentException
     * @throws \InvalidArgumentException
     */
    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $logger = LoggerHelper::createDefaultLogger($output);

        $cacheOption = $input->getOption('cache');
        assert(is_string($cacheOption));

        $adapter    = new LocalFilesystemAdapter($cacheOption);
        $filesystem = new Filesystem($adapter);
        $cache      = new SimpleCache(
            new Flysystem($filesystem)
        );

        $logger->info('started updating cache with remote file');

        $browscap = new BrowscapUpdater($cache, $logger);

        $remoteFileOption = $input->getOption('remote-file');
        assert(is_string($remoteFileOption));

        try {
            $browscap->update($remoteFileOption);
        } catch (ErrorCachedVersionException $e) {
            $logger->debug($e);

            return CheckUpdateCommand::ERROR_READING_CACHE;
        } catch (FetcherException $e) {
            $logger->debug($e);

            return CheckUpdateCommand::ERROR_READING_REMOTE_FILE;
        } catch (Throwable $e) {
            $logger->info($e);

            return CheckUpdateCommand::GENERIC_ERROR;
        }

        $logger->info('finished updating cache with remote file');

        return self::SUCCESS;
    }
}