<?php
namespace ProVM\Command;

use DateTimeImmutable;
use DateInterval;
use Psr\Log\LoggerInterface;
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 function Safe\shell_exec;

#[AsCommand(
    name: 'watch',
    hidden: false
)]
class Watch extends Command
{
    public function __construct(protected string $command, protected string $period, protected LoggerInterface $logger, string $name = 'watch')
    {
        parent::__construct($name);
    }

    public function execute(InputInterface $input, OutputInterface $output): int
    {
        $io = new SymfonyStyle($input, $output);
        $io->title('Watch');

        $period = new DateInterval($this->period);
        $current = new DateTimeImmutable();
        $io->info('Starting');
        while(true) {
            $now = new DateTimeImmutable();
            if ($now->diff($current) === $period) {
                $io->info('Running Update');
                $this->runUpdate();
                $current = $now;
            }
            $wait = (new DateTimeImmutable((new DateTimeImmutable())->format('Y-m-d H:i:0')))->add(new DateInterval('PT1M'));
            time_sleep_until($wait->getTimestamp());
        }
        return Command::SUCCESS;
    }
    protected function runUpdate(): void
    {
        $command = "{$this->command} update";
        $this->logger->info("Running '{$command}'");
        shell_exec($command);
    }
}