<?php

namespace App;

use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Twig\Environment;
use Twig\Loader\ArrayLoader;
use DateTime;
use App\Notification\Notification;
use App\Rclone\Rclone;

#[AsCommand(
    name: 'backup',
    description: 'Start backup to assigned buckets',
)]
class CommandBackup extends Command
{
    protected function configure(): void
    {
        $this->addArgument(
            'config',
            InputArgument::OPTIONAL,
            'Configuration file',
            "config.yml"
        );
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $sio = new SymfonyStyle($input, $output);
        $sio->title('Start backup process');

        try {
            $app = new App($input->getArgument('config'));
        } catch (\Throwable $e) {
            $sio->error('Configuration error:' . $e->getMessage());
            return Command::FAILURE;
        }

        $rclone = new Rclone();
        $rclone->setLogger($app->getLogger()->withName('rclone'));

        $notification = new Notification();
        $notification->loadMany($app->getConfig()['notification']);

        $loader = new ArrayLoader($app->getConfig()['templates']);
        $twig = new Environment($loader);
        $twig->addExtension(new Twig\AppExtension());

        foreach ($sio->progressIterate($app->getConfig()['backup']) as $conf) {
            $title = $conf['title'];
            $message = "";
            try {
                $template = array();
                $template['config'] = $conf;
                $template['start'] = new DateTime();
                $template['source_size'] = $rclone->getSize($conf['source']);
                $template['rclone_version'] = $rclone->getVersion();
                $template['destination_size_before'] = $rclone->getSize($conf['destination']);

                $template['stdout'] = $rclone->copy($conf['source'], $conf['destination'], $app->getConfig()['rclone']['options']);

                $template['destination_size_after'] = $rclone->getSize($conf['destination']);
                $template['end'] = new DateTime();

                $message = $twig->render('notify', $template);
            } catch (\Throwable $e) {
                $message = $e->getMessage();
            }

            $notification->send($title, $message);
        }

        $sio->success("Complete");
        return Command::SUCCESS;
    }
}