<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Lukas Reschke <lukas@statuscode.ch>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 * @author Vincent Petry <pvince81@owncloud.com>
 *
 * @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 OCA\Files\Controller;

use OC\Files\FileInfo;
use OCP\AppFramework\Http;
use OCP\Files\NotFoundException;
use OCP\Files\StorageNotAvailableException;
use Test\TestCase;
use OCP\IRequest;
use OCA\Files\Service\TagService;
use OCP\AppFramework\Http\DataResponse;
use OCP\IPreview;
use OCP\Image;

/**
 * Class ApiController
 *
 * @package OCA\Files\Controller
 */
class ApiControllerTest extends TestCase {
	/** @var string */
	private $appName = 'files';
	/** @var IRequest */
	private $request;
	/** @var TagService */
	private $tagService;
	/** @var IPreview */
	private $preview;
	/** @var ApiController */
	private $apiController;
	/** @var \OCP\Share\IManager */
	private $shareManager;

	public function setUp() {
		$this->request = $this->getMockBuilder('\OCP\IRequest')
			->disableOriginalConstructor()
			->getMock();
		$user = $this->getMock('\OCP\IUser');
		$user->expects($this->any())
			->method('getUID')
			->will($this->returnValue('user1'));
		$userSession = $this->getMock('\OCP\IUserSession');
		$userSession->expects($this->any())
			->method('getUser')
			->will($this->returnValue($user));
		$this->tagService = $this->getMockBuilder('\OCA\Files\Service\TagService')
			->disableOriginalConstructor()
			->getMock();
		$this->shareManager = $this->getMockBuilder('\OCP\Share\IManager')
			->disableOriginalConstructor()
			->getMock();
		$this->preview = $this->getMockBuilder('\OCP\IPreview')
			->disableOriginalConstructor()
			->getMock();

		$this->apiController = new ApiController(
			$this->appName,
			$this->request,
			$userSession,
			$this->tagService,
			$this->preview,
			$this->shareManager
		);
	}

	public function testGetFilesByTagEmpty() {
		$tagName = 'MyTagName';
		$this->tagService->expects($this->once())
			->method('getFilesByTag')
			->with($this->equalTo([$tagName]))
			->will($this->returnValue([]));

		$expected = new DataResponse(['files' => []]);
		$this->assertEquals($expected, $this->apiController->getFilesByTag([$tagName]));
	}

	public function testGetFilesByTagSingle() {
		$tagName = 'MyTagName';
		$fileInfo = new FileInfo(
			'/root.txt',
			$this->getMockBuilder('\OC\Files\Storage\Storage')
				->disableOriginalConstructor()
				->getMock(),
			'/var/www/root.txt',
			[
				'mtime' => 55,
				'mimetype' => 'application/pdf',
				'permissions' => 31,
				'size' => 1234,
				'etag' => 'MyEtag',
			],
			$this->getMockBuilder('\OCP\Files\Mount\IMountPoint')
				->disableOriginalConstructor()
				->getMock()
		);
		$node = $this->getMockBuilder('\OC\Files\Node\File')
			->disableOriginalConstructor()
			->getMock();
		$node->expects($this->once())
			->method('getFileInfo')
			->will($this->returnValue($fileInfo));
		$this->tagService->expects($this->once())
			->method('getFilesByTag')
			->with($this->equalTo([$tagName]))
			->will($this->returnValue([$node]));

		$this->shareManager->expects($this->any())
			->method('getSharesBy')
			->with(
				$this->equalTo('user1'),
				$this->anything(),
				$node,
				$this->equalTo(false),
				$this->equalTo(1)
			)
			->will($this->returnCallback(function($userId, $shareType) {
				if ($shareType === \OCP\Share::SHARE_TYPE_USER || $shareType === \OCP\Share::SHARE_TYPE_LINK) {
					return ['dummy_share'];
				}
				return [];
			}));

		$expected = new DataResponse([
			'files' => [
				[
					'id' => null,
					'parentId' => null,
					'mtime' => 55000,
					'name' => 'root.txt',
					'permissions' => 31,
					'mimetype' => 'application/pdf',
					'size' => 1234,
					'type' => 'file',
					'etag' => 'MyEtag',
					'path' => '/',
					'tags' => [
						[
							'MyTagName'
						]
					],
					'shareTypes' => [\OCP\Share::SHARE_TYPE_USER, \OCP\Share::SHARE_TYPE_LINK]
				],
			],
		]);
		$this->assertEquals($expected, $this->apiController->getFilesByTag([$tagName]));
	}

	public function testGetFilesByTagMultiple() {
		$tagName = 'MyTagName';
		$fileInfo1 = new FileInfo(
			'/root.txt',
			$this->getMockBuilder('\OC\Files\Storage\Storage')
				->disableOriginalConstructor()
				->getMock(),
			'/var/www/root.txt',
			[
				'mtime' => 55,
				'mimetype' => 'application/pdf',
				'permissions' => 31,
				'size' => 1234,
				'etag' => 'MyEtag',
			],
			$this->getMockBuilder('\OCP\Files\Mount\IMountPoint')
				->disableOriginalConstructor()
				->getMock()
		);
		$fileInfo2 = new FileInfo(
			'/root.txt',
			$this->getMockBuilder('\OC\Files\Storage\Storage')
				->disableOriginalConstructor()
				->getMock(),
			'/var/www/some/sub.txt',
			[
				'mtime' => 999,
				'mimetype' => 'application/binary',
				'permissions' => 31,
				'size' => 9876,
				'etag' => 'SubEtag',
			],
			$this->getMockBuilder('\OCP\Files\Mount\IMountPoint')
				->disableOriginalConstructor()
				->getMock()
		);
		$node1 = $this->getMockBuilder('\OC\Files\Node\File')
			->disableOriginalConstructor()
			->getMock();
		$node1->expects($this->once())
			->method('getFileInfo')
			->will($this->returnValue($fileInfo1));
		$node2 = $this->getMockBuilder('\OC\Files\Node\File')
			->disableOriginalConstructor()
			->getMock();
		$node2->expects($this->once())
			->method('getFileInfo')
			->will($this->returnValue($fileInfo2));
		$this->tagService->expects($this->once())
			->method('getFilesByTag')
			->with($this->equalTo([$tagName]))
			->will($this->returnValue([$node1, $node2]));

		$expected = new DataResponse([
			'files' => [
				[
					'id' => null,
					'parentId' => null,
					'mtime' => 55000,
					'name' => 'root.txt',
					'permissions' => 31,
					'mimetype' => 'application/pdf',
					'size' => 1234,
					'type' => 'file',
					'etag' => 'MyEtag',
					'path' => '/',
					'tags' => [
						[
							'MyTagName'
						]
					],
				],
				[
					'id' => null,
					'parentId' => null,
					'mtime' => 999000,
					'name' => 'root.txt',
					'permissions' => 31,
					'mimetype' => 'application/binary',
					'size' => 9876,
					'type' => 'file',
					'etag' => 'SubEtag',
					'path' => '/',
					'tags' => [
						[
							'MyTagName'
						]
					],
				]
			],
		]);
		$this->assertEquals($expected, $this->apiController->getFilesByTag([$tagName]));
	}

	public function testUpdateFileTagsEmpty() {
		$expected = new DataResponse([]);
		$this->assertEquals($expected, $this->apiController->updateFileTags('/path.txt'));
	}

	public function testUpdateFileTagsWorking() {
		$this->tagService->expects($this->once())
			->method('updateFileTags')
			->with('/path.txt', ['Tag1', 'Tag2']);

		$expected = new DataResponse([
			'tags' => [
				'Tag1',
				'Tag2'
			],
		]);
		$this->assertEquals($expected, $this->apiController->updateFileTags('/path.txt', ['Tag1', 'Tag2']));
	}

	public function testUpdateFileTagsNotFoundException() {
		$this->tagService->expects($this->once())
			->method('updateFileTags')
			->with('/path.txt', ['Tag1', 'Tag2'])
			->will($this->throwException(new NotFoundException('My error message')));

		$expected = new DataResponse(['message' => 'My error message'], Http::STATUS_NOT_FOUND);
		$this->assertEquals($expected, $this->apiController->updateFileTags('/path.txt', ['Tag1', 'Tag2']));
	}

	public function testUpdateFileTagsStorageNotAvailableException() {
		$this->tagService->expects($this->once())
			->method('updateFileTags')
			->with('/path.txt', ['Tag1', 'Tag2'])
			->will($this->throwException(new StorageNotAvailableException('My error message')));

		$expected = new DataResponse(['message' => 'My error message'], Http::STATUS_SERVICE_UNAVAILABLE);
		$this->assertEquals($expected, $this->apiController->updateFileTags('/path.txt', ['Tag1', 'Tag2']));
	}

	public function testUpdateFileTagsStorageGenericException() {
		$this->tagService->expects($this->once())
			->method('updateFileTags')
			->with('/path.txt', ['Tag1', 'Tag2'])
			->will($this->throwException(new \Exception('My error message')));

		$expected = new DataResponse(['message' => 'My error message'], Http::STATUS_NOT_FOUND);
		$this->assertEquals($expected, $this->apiController->updateFileTags('/path.txt', ['Tag1', 'Tag2']));
	}

	public function testGetThumbnailInvalidSize() {
		$expected = new DataResponse(['message' => 'Requested size must be numeric and a positive value.'], Http::STATUS_BAD_REQUEST);
		$this->assertEquals($expected, $this->apiController->getThumbnail(0, 0, ''));
	}

	public function testGetThumbnailInvaidImage() {
		$this->preview->expects($this->once())
			->method('createPreview')
			->with('files/unknown.jpg', 10, 10, true)
			->willReturn(new Image);
		$expected = new DataResponse(['message' => 'File not found.'], Http::STATUS_NOT_FOUND);
		$this->assertEquals($expected, $this->apiController->getThumbnail(10, 10, 'unknown.jpg'));
	}

	public function testGetThumbnail() {
		$this->preview->expects($this->once())
			->method('createPreview')
			->with('files/known.jpg', 10, 10, true)
			->willReturn(new Image(\OC::$SERVERROOT.'/tests/data/testimage.jpg'));

		$ret = $this->apiController->getThumbnail(10, 10, 'known.jpg');

		$this->assertEquals(Http::STATUS_OK, $ret->getStatus());
	}
}
