<?php
//php bin/console static-site-restore
namespace App\Command;

use App\Service\StaticSiteBackupManager;
use App\Service\StaticSiteBackupResult;

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: 'static-site-restore',
    description: 'Runs StaticSiteBackupManager restore operation over CLI.',
)]
class StaticSiteRestoreCommand extends Command
{
    private StaticSiteBackupManager $staticSiteBackupManager;

    public function __construct(StaticSiteBackupManager $staticSiteBackupManager)
    {
        parent::__construct();

        $this->staticSiteBackupManager = $staticSiteBackupManager;
    }

    protected function configure(): void
    {
        $this
            ->addOption(
                // this is the name that users must type to pass this option (e.g. --iterations=5)
                'number',
                // this is the optional shortcut of the option name, which usually is just a letter
                // (e.g. `i`, so users pass it as `-i`); use it for commonly used options
                // or options with long names
                null,
                // this is the type of option (e.g. requires a value, can be passed more than once, etc.)
                InputOption::VALUE_OPTIONAL,
                // the option description displayed when showing the command help
                'Number of backup to restore',
                // the default value of the option (for those which allow to pass values)
                ''
            )
            ->addOption(
                // this is the name that users must type to pass this option (e.g. --iterations=5)
                'date',
                // this is the optional shortcut of the option name, which usually is just a letter
                // (e.g. `i`, so users pass it as `-i`); use it for commonly used options
                // or options with long names
                null,
                // this is the type of option (e.g. requires a value, can be passed more than once, etc.)
                InputOption::VALUE_OPTIONAL,
                // the option description displayed when showing the command help
                'Date of backup to restore',
                // the default value of the option (for those which allow to pass values)
                ''
            )
        ;
    }

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

        if($this->staticSiteBackupManager->staticSiteBuilder->isRunning()) {
            $io->error('Static site builder is running.');

            return Command::FAILURE;
        }


        $date = $input->getOption('date');
        $number = $input->getOption('number');

        $backups = [];

        foreach (glob($this->staticSiteBackupManager->backupPath . '*') as $filename) {
            if (is_dir($filename)) {
                $pathinfo = pathinfo($filename);

                $backups[] = $pathinfo['basename'];
            }
        }

        if ($date != '' && in_array($date, $backups)) {
            if ($this->staticSiteBackupManager->restore($date)) {
                $io->success('Static site restore is complete.');

                return Command::SUCCESS;
            }
            else {
                $io->error('Static site restore failed.');

                return Command::FAILURE;
            }
        }
        elseif ($number != '' && isset($backups[(int)$number])) {
            $date = $backups[(int)$number];

            if ($this->staticSiteBackupManager->restore($date)) {
                $io->success('Static site restore is complete.');

                return Command::SUCCESS;
            }
            else {
                $io->error('Static site restore failed.');

                return Command::FAILURE;
            }
        }
        elseif (count($backups) > 0) {
            $output->writeln('Available backups: ');

            foreach ($backups as $key => $value) {
                $output->writeln('[' .$key . '] : ' . $value);
            } 

            $output->writeln('To restore, add --date Y-m-d_H-i-s');

            return Command::SUCCESS;
        }
        else {
            $io->error('No backups to restore.');

            return Command::FAILURE;
        }
    }
}