<?php

namespace PHPIAC\Command;

use PHPIAC\Task;
use phpseclib3\Crypt\PublicKeyLoader;
use phpseclib3\Net\SSH2;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

class RunCommand extends Command
{
    protected static $defaultName = 'run';

    protected function configure()
    {
        $this->addOption('config', 'c', InputOption::VALUE_REQUIRED, 'Path to config file', getcwd() . '/config.php');
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $config = include $input->getOption('config');

        global $ssh;
        $ssh = new SSH2($config['host']);
        if (! $ssh->login($config['user'], PublicKeyLoader::load(file_get_contents($config['private_key_file'])))) {
            throw new \Exception('Login failed');
        }

        $commands = [];
        foreach ($config['tasks'] as $task) {
            /**@var Task $task*/
            if (! $task->module->checkState()) {
                $output->writeln($task->getName() . ': Adding commands from ' . get_class($task->module));
                array_push($commands, ...$task->module->getCommands());
            }
            else {
                $output->writeln($task->getName() . ': Skipping commands from ' . get_class($task->module));
            }
        }

        // run commands in single exec call
        $ssh->exec(implode(PHP_EOL, $commands));

        return Command::SUCCESS;
    }
}