<?php
/**
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace Test\Migration;

use OC\Migration\BackgroundRepair;
use OC\NeedsUpdateException;
use OCP\ILogger;
use OCP\Migration\IOutput;
use OCP\Migration\IRepairStep;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\GenericEvent;
use Test\TestCase;

class TestRepairStep implements IRepairStep {
	/**
	 * Returns the step's name
	 *
	 * @return string
	 * @since 9.1.0
	 */
	public function getName() {
		return 'A test repair step';
	}

	/**
	 * Run repair step.
	 * Must throw exception on error.
	 *
	 * @since 9.1.0
	 * @throws \Exception in case of failure
	 */
	public function run(IOutput $output) {
		// TODO: Implement run() method.
	}
}

class BackgroundRepairTest extends TestCase {
	/** @var \OC\BackgroundJob\JobList | \PHPUnit\Framework\MockObject\MockObject */
	private $jobList;

	/** @var BackgroundRepair | \PHPUnit\Framework\MockObject\MockObject  */
	private $job;

	/** @var ILogger | \PHPUnit\Framework\MockObject\MockObject */
	private $logger;

	public function setUp(): void {
		parent::setUp();

		$this->jobList = $this->getMockBuilder('OC\BackgroundJob\JobList')
			->disableOriginalConstructor()
			->getMock();
		$this->logger = $this->getMockBuilder('OCP\ILogger')
			->disableOriginalConstructor()
			->getMock();
		$this->job = $this->getMockBuilder('OC\Migration\BackgroundRepair')
			->setMethods(['loadApp'])
			->getMock();
	}

	public function testNoArguments() {
		$this->jobList->expects($this->once())->method('remove');
		$this->job->execute($this->jobList);
	}

	public function testAppUpgrading() {
		$this->jobList->expects($this->never())->method('remove');
		$this->job->expects($this->once())->method('loadApp')->with('test')->willThrowException(new NeedsUpdateException());
		$this->job->setArgument([
			'app' => 'test',
			'step' => 'j'
		]);
		$this->job->execute($this->jobList);
	}

	public function testUnknownStep() {
		$this->jobList->expects($this->once())->method('remove');
		$this->logger->expects($this->once())->method('logException');
		$this->job->setArgument([
			'app' => 'test',
			'step' => 'j'
		]);
		$this->job->execute($this->jobList, $this->logger);
	}

	public function testWorkingStep() {
		/** @var EventDispatcher | \PHPUnit\Framework\MockObject\MockObject $dispatcher */
		$dispatcher = $this->createMock('Symfony\Component\EventDispatcher\EventDispatcher');
		$dispatcher->expects($this->once())->method('dispatch')
			->with(new GenericEvent('\OC\Repair::step', ['A test repair step']), '\OC\Repair::step');

		$this->jobList->expects($this->once())->method('remove');
		$this->job->setDispatcher($dispatcher);
		$this->job->setArgument([
			'app' => 'test',
			'step' => '\Test\Migration\TestRepairStep'
		]);
		$this->job->execute($this->jobList, $this->logger);
	}
}
