<?php

/*
 * This file is part of the FOSUserBundle package.
 *
 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FOS\UserBundle\Command;

use FOS\UserBundle\Util\UserManipulator;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\Question;

class ChangePasswordCommand extends Command
{
    protected static $defaultName = 'fos:user:change-password';

    private $userManipulator;

    public function __construct(UserManipulator $userManipulator)
    {
        parent::__construct();

        $this->userManipulator = $userManipulator;
    }

    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            ->setName('fos:user:change-password')
            ->setDescription('Change the password of a user.')
            ->setDefinition(array(
                new InputArgument('username', InputArgument::REQUIRED, 'The username'),
                new InputArgument('password', InputArgument::REQUIRED, 'The password'),
            ))
            ->setHelp(<<<'EOT'
The <info>fos:user:change-password</info> command changes the password of a user:

  <info>php %command.full_name% matthieu</info>

This interactive shell will first ask you for a password.

You can alternatively specify the password as a second argument:

  <info>php %command.full_name% matthieu mypassword</info>

EOT
            );
    }

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $username = $input->getArgument('username');
        $password = $input->getArgument('password');

        $this->userManipulator->changePassword($username, $password);

        $output->writeln(sprintf('Changed password for user <comment>%s</comment>', $username));
    }

    /**
     * {@inheritdoc}
     */
    protected function interact(InputInterface $input, OutputInterface $output)
    {
        $questions = array();

        if (!$input->getArgument('username')) {
            $question = new Question('Please give the username:');
            $question->setValidator(function ($username) {
                if (empty($username)) {
                    throw new \Exception('Username can not be empty');
                }

                return $username;
            });
            $questions['username'] = $question;
        }

        if (!$input->getArgument('password')) {
            $question = new Question('Please enter the new password:');
            $question->setValidator(function ($password) {
                if (empty($password)) {
                    throw new \Exception('Password can not be empty');
                }

                return $password;
            });
            $question->setHidden(true);
            $questions['password'] = $question;
        }

        foreach ($questions as $name => $question) {
            $answer = $this->getHelper('question')->ask($input, $output, $question);
            $input->setArgument($name, $answer);
        }
    }
}
