<?php
/*
 * This file is part of the Drupal Console.
 */
namespace Drupal\Console\Core\Helper;

use Symfony\Component\Console\Helper\Helper as BaseHelper;
use Symfony\Component\Console\Descriptor\DescriptorInterface;
use Symfony\Component\Console\Descriptor\JsonDescriptor;
use Symfony\Component\Console\Descriptor\MarkdownDescriptor;
use Drupal\Console\Core\Descriptor\TextDescriptor;
use Symfony\Component\Console\Descriptor\XmlDescriptor;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * This class adds helper method to describe objects in various formats.
 *
 * @author Jean-François Simon <contact@jfsimon.fr>
 */
class DescriptorHelper extends BaseHelper
{
    /**
     * @var DescriptorInterface[]
     */
    private $descriptors = [];
    /**
     * Constructor.
     */
    public function __construct()
    {
        $this
            ->register('txt', new TextDescriptor())
            ->register('xml', new XmlDescriptor())
            ->register('json', new JsonDescriptor())
            ->register('md', new MarkdownDescriptor());
    }
    /**
     * Describes an object if supported.
     *
     * Available options are:
     * * format: string, the output format name
     * * raw_text: boolean, sets output type as raw
     *
     * @param OutputInterface $output
     * @param object          $object
     * @param array           $options
     *
     * @throws \InvalidArgumentException when the given format is not supported
     */
    public function describe(OutputInterface $output, $object, array $options = [])
    {
        $options = array_merge(
            [
            'raw_text' => false,
            'format' => 'txt',
            ], $options
        );
        if (!isset($this->descriptors[$options['format']])) {
            throw new \InvalidArgumentException(sprintf('Unsupported format "%s".', $options['format']));
        }
        $descriptor = $this->descriptors[$options['format']];
        $descriptor->describe($output, $object, $options);
    }
    /**
     * Registers a descriptor.
     *
     * @param string              $format
     * @param DescriptorInterface $descriptor
     *
     * @return DescriptorHelper
     */
    public function register($format, DescriptorInterface $descriptor)
    {
        $this->descriptors[$format] = $descriptor;
        return $this;
    }
    /**
     * {@inheritdoc}
     */
    public function getName()
    {
        return 'descriptor';
    }
}