<?php

/**
 * @copyright 2016 Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * @author 2016 Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace Test\Authentication\LoginCredentials;

use OC\Authentication\Exceptions\InvalidTokenException;
use OC\Authentication\Exceptions\PasswordlessTokenException;
use OC\Authentication\LoginCredentials\Credentials;
use OC\Authentication\LoginCredentials\Store;
use OC\Authentication\Token\IProvider;
use OC\Authentication\Token\IToken;
use OCP\Authentication\Exceptions\CredentialsUnavailableException;
use OCP\ILogger;
use OCP\ISession;
use OCP\Session\Exceptions\SessionNotAvailableException;
use PHPUnit_Framework_MockObject_MockObject;
use Test\TestCase;

class StoreTest extends TestCase {

	/** @var ISession|PHPUnit_Framework_MockObject_MockObject */
	private $session;

	/** @var IProvider|PHPUnit_Framework_MockObject_MockObject */
	private $tokenProvider;

	/** @var ILogger|PHPUnit_Framework_MockObject_MockObject */
	private $logger;

	/** @var Store */
	private $store;

	protected function setUp() {
		parent::setUp();

		$this->session = $this->createMock(ISession::class);
		$this->tokenProvider = $this->createMock(IProvider::class);
		$this->logger = $this->createMock(ILogger::class);

		$this->store = new Store($this->session, $this->logger, $this->tokenProvider);
	}

	public function testAuthenticate() {
		$params = [
			'run' => true,
			'uid' => 'user123',
			'password' => 123456,
		];

		$this->session->expects($this->once())
			->method('set')
			->with($this->equalTo('login_credentials'), $this->equalTo(json_encode($params)));

		$this->store->authenticate($params);
	}

	public function testSetSession() {
		$session = $this->createMock(ISession::class);

		$this->store->setSession($session);
	}

	public function testGetLoginCredentialsNoTokenProvider() {
		$this->store = new Store($this->session, $this->logger, null);

		$this->expectException(CredentialsUnavailableException::class);

		$this->store->getLoginCredentials();
	}

	public function testGetLoginCredentials() {
		$uid = 'uid';
		$user = 'user123';
		$password = 'passme';
		$token = $this->createMock(IToken::class);
		$this->session->expects($this->once())
			->method('getId')
			->willReturn('sess2233');
		$this->tokenProvider->expects($this->once())
			->method('getToken')
			->with('sess2233')
			->willReturn($token);
		$token->expects($this->once())
			->method('getUID')
			->willReturn($uid);
		$token->expects($this->once())
			->method('getLoginName')
			->willReturn($user);
		$this->tokenProvider->expects($this->once())
			->method('getPassword')
			->with($token, 'sess2233')
			->willReturn($password);
		$expected = new Credentials($uid, $user, $password);

		$creds = $this->store->getLoginCredentials();

		$this->assertEquals($expected, $creds);
	}

	public function testGetLoginCredentialsSessionNotAvailable() {
		$this->session->expects($this->once())
			->method('getId')
			->will($this->throwException(new SessionNotAvailableException()));
		$this->expectException(CredentialsUnavailableException::class);

		$this->store->getLoginCredentials();
	}

	public function testGetLoginCredentialsInvalidToken() {
		$this->session->expects($this->once())
			->method('getId')
			->willReturn('sess2233');
		$this->tokenProvider->expects($this->once())
			->method('getToken')
			->with('sess2233')
			->will($this->throwException(new InvalidTokenException()));
		$this->expectException(CredentialsUnavailableException::class);

		$this->store->getLoginCredentials();
	}

	public function testGetLoginCredentialsInvalidTokenLoginCredentials() {
		$uid = 'user987';
		$password = '7389374';

		$this->session->expects($this->once())
			->method('getId')
			->willReturn('sess2233');
		$this->tokenProvider->expects($this->once())
			->method('getToken')
			->with('sess2233')
			->will($this->throwException(new InvalidTokenException()));
		$this->session->expects($this->once())
			->method('exists')
			->with($this->equalTo('login_credentials'))
			->willReturn(true);
		$this->session->expects($this->once())
			->method('get')
			->with($this->equalTo('login_credentials'))
			->willReturn('{"run":true,"uid":"user987","password":"7389374"}');
		$expected = new Credentials('user987', 'user987', '7389374');

		$actual = $this->store->getLoginCredentials();

		$this->assertEquals($expected, $actual);
	}

	public function testGetLoginCredentialsPasswordlessToken() {
		$this->session->expects($this->once())
			->method('getId')
			->willReturn('sess2233');
		$this->tokenProvider->expects($this->once())
			->method('getToken')
			->with('sess2233')
			->will($this->throwException(new PasswordlessTokenException()));
		$this->expectException(CredentialsUnavailableException::class);

		$this->store->getLoginCredentials();
	}

}
