<?php
  /**
   * Copyright (c) 2014 Arthur Schiwon <blizzz@owncloud.com>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  namespace OCA\user_ldap\Command;
  
  use Symfony\Component\Console\Command\Command;
  use Symfony\Component\Console\Input\InputArgument;
  use Symfony\Component\Console\Input\InputInterface;
  use Symfony\Component\Console\Input\InputOption;
  use Symfony\Component\Console\Output\OutputInterface;
  use \OCA\user_ldap\lib\Helper;
  use \OCA\user_ldap\lib\Connection;
  
  class TestConfig extends Command {
  
  	protected function configure() {
  		$this
  			->setName('ldap:test-config')
  			->setDescription('tests an LDAP configuration')
  			->addArgument(
  					'configID',
  					InputArgument::REQUIRED,
  					'the configuration ID'
  				     )
  		;
  	}
  
  	protected function execute(InputInterface $input, OutputInterface $output) {
  		$availableConfigs = Helper::getServerConfigurationPrefixes();
  		$configID = $input->getArgument('configID');
  		if(!in_array($configID, $availableConfigs)) {
  			$output->writeln("Invalid configID");
  			return;
  		}
  
  		$result = $this->testConfig($configID);
  		if($result === 0) {
  			$output->writeln('The configuration is valid and the connection could be established!');
  		} else if($result === 1) {
  			$output->writeln('The configuration is invalid. Please have a look at the logs for further details.');
  		} else if($result === 2) {
  			$output->writeln('The configuration is valid, but the Bind failed. Please check the server settings and credentials.');
  		} else {
  			$output->writeln('Your LDAP server was kidnapped by aliens.');
  		}
  	}
  
  	/**
  	 * tests the specified connection
  	 * @param string $configID
  	 * @return int
  	 */
  	protected function testConfig($configID) {
  		$lw = new \OCA\user_ldap\lib\LDAP();
  		$connection = new Connection($lw, $configID);
  
  		//ensure validation is run before we attempt the bind
  		$connection->getConfiguration();
  
  		if(!$connection->setConfiguration(array(
  			'ldap_configuration_active' => 1,
  		))) {
  			return 1;
  		}
  		if($connection->bind()) {
  			return 0;
  		}
  		return 2;
  	}
  }