<?php
/**
 * @package     Joomla.Platform
 * @subpackage  GitHub
 *
 * @copyright   Copyright (C) 2005 - 2016 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * GitHub API Repositories Collaborators class for the Joomla Platform.
 *
 * @documentation http://developer.github.com/v3/repos/collaborators
 *
 * @since  11.3
 */
class JGithubPackageRepositoriesCollaborators extends JGithubPackage
{
	/**
	 * List.
	 *
	 * When authenticating as an organization owner of an organization-owned repository, all organization
	 * owners are included in the list of collaborators. Otherwise, only users with access to the repository
	 * are returned in the collaborators list.
	 *
	 * @param   string  $owner  The name of the owner of the GitHub repository.
	 * @param   string  $repo   The name of the GitHub repository.
	 *
	 * @since 3.3 (CMS)
	 *
	 * @return object
	 */
	public function getList($owner, $repo)
	{
		// Build the request path.
		$path = '/repos/' . $owner . '/' . $repo . '/collaborators';

		return $this->processResponse(
			$this->client->get($this->fetchUrl($path))
		);
	}

	/**
	 * Test if a user is a collaborator.
	 *
	 * @param   string  $owner  The name of the owner of the GitHub repository.
	 * @param   string  $repo   The name of the GitHub repository.
	 * @param   string  $user   The name of the GitHub user.
	 *
	 * @throws UnexpectedValueException
	 * @since 3.3 (CMS)
	 *
	 * @return boolean
	 */
	public function get($owner, $repo, $user)
	{
		// Build the request path.
		$path = '/repos/' . $owner . '/' . $repo . '/collaborators/' . $user;

		$response = $this->client->get($this->fetchUrl($path));

		switch ($response->code)
		{
			case '204';

				return true;
				break;
			case '404';

				return false;
				break;
			default;
				throw new UnexpectedValueException('Unexpected code: ' . $response->code);
				break;
		}
	}

	/**
	 * Add collaborator.
	 *
	 * @param   string  $owner  The name of the owner of the GitHub repository.
	 * @param   string  $repo   The name of the GitHub repository.
	 * @param   string  $user   The name of the GitHub user.
	 *
	 * @since 3.3 (CMS)
	 *
	 * @return object
	 */
	public function add($owner, $repo, $user)
	{
		// Build the request path.
		$path = '/repos/' . $owner . '/' . $repo . '/collaborators/' . $user;

		return $this->processResponse(
			$this->client->put($this->fetchUrl($path), ''),
			204
		);
	}

	/**
	 * Remove collaborator.
	 *
	 * @param   string  $owner  The name of the owner of the GitHub repository.
	 * @param   string  $repo   The name of the GitHub repository.
	 * @param   string  $user   The name of the GitHub user.
	 *
	 * @since 3.3 (CMS)
	 *
	 * @return object
	 */
	public function remove($owner, $repo, $user)
	{
		// Build the request path.
		$path = '/repos/' . $owner . '/' . $repo . '/collaborators/' . $user;

		return $this->processResponse(
			$this->client->delete($this->fetchUrl($path)),
			204
		);
	}
}
