<?php

declare(strict_types = 1);

namespace Fgm\Drupal\Composer;

use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * Configure the Hugo-based documentation site for the project.
 *
 * @package Fgm\Drupal\Composer
 */
class HugoConfigCommand extends BaseBuilderCommand {

  /**
   * Machine name of current building process.
   */
  const BUILD_NAME = 'config_doc';

  /**
   * The event triggering this command.
   *
   * @var string
   */
  protected $eventName;

  /**
   * Configures the current command.
   */
  public function configure() {
    parent::configure();
    $this->eventName = $this->getName();
    $this
      ->setName('build:config_doc')
      ->setDescription('Step 2 (Optional): configure the documentation site for the current environment.')
      ->setDefinition(
        new InputDefinition([
          new InputArgument(static::ARG_FILE, InputArgument::OPTIONAL, '', static::BUILD_NAME),
        ])
      )
      ->setHelp(
        <<<EOT
The build:config_doc modifies the doc/config.toml file and rebuilds the documentation
site to account for the changes.

EOT
      );
  }

  /**
   * Executes the current command.
   *
   * {@inheritDoc}
   */
  public function execute(InputInterface $input, OutputInterface $output): int {
    [$wrapper, $params, $msg, $err] = $this->prepare($input, $output, static::BUILD_NAME);
    if ($err != 0) {
      $output->writeln($msg);
      return $err;
    }

    $context = [
      'base_url' => $params['instance']['doc']['base_url'],
    ];

    $destination = "doc/config.toml";
    [$msg, $error] = $this->render($wrapper, $context, $destination);
    if ($error) {
      $output->writeln(sprintf("Failed rendering doc configuration: %s", $msg));
      return 5;
    }

    $cwd = getcwd();
    chdir('doc');
    $err = system("hugo -D", $exit);
    if ($exit != 0) {
      $output->writeln(sprintf("Failed running hugo to rebuild documentation site: %s\n", $err));
      return 6;
    }
    chdir($cwd);

    return 0;
  }

}