<?php

namespace Tests\Behat\Controller;

use Behat\Behat\EventDispatcher\Event\BeforeFeatureTested;
use Behat\Testwork\Cli\Controller;
use Symfony\Component\Console\Command\Command as SymfonyCommand;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Yaml\Yaml;

/**
 * @author Vincent Chalamon <vincent@les-tilleuls.coop>
 */
final class ListSuitesController implements Controller
{
    /**
     * @var EventDispatcherInterface
     */
    private $eventDispatcher;

    /**
     * @var OutputInterface
     */
    private $output;

    /**
     * @param EventDispatcherInterface $eventDispatcher
     */
    public function __construct($eventDispatcher)
    {
        $this->eventDispatcher = $eventDispatcher;
    }

    /**
     * {@inheritdoc}
     */
    public function configure(SymfonyCommand $command)
    {
        $command->addOption('--list-suites', null, InputOption::VALUE_NONE, 'List suites.');
    }

    /**
     * {@inheritdoc}
     */
    public function execute(InputInterface $input, OutputInterface $output)
    {
        if (!$input->getOption('list-suites')) {
            return null;
        }

        $this->output = $output;

        $this->eventDispatcher->addListener(BeforeFeatureTested::BEFORE, [$this, 'listSuites'], -100);
    }

    public function listSuites(BeforeFeatureTested $event)
    {
        $suites = array_keys(Yaml::parse(file_get_contents(rtrim(getcwd(), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.'behat.yml'))['default']['suites']);
        $this->output->writeln(implode(PHP_EOL, $suites));

        exit(0);
    }
}