<?php
/**
 * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

namespace Test\Files\Cache;

use OC\Files\Filesystem;
use OC\Files\Storage\Temporary;
use OC\Files\View;

class Updater extends \Test\TestCase {
	/**
	 * @var \OC\Files\Storage\Storage
	 */
	protected $storage;

	/**
	 * @var \OC\Files\Cache\Cache
	 */
	protected $cache;

	/**
	 * @var \OC\Files\View
	 */
	protected $view;

	/**
	 * @var \OC\Files\Cache\Updater
	 */
	protected $updater;

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

		$this->loginAsUser();

		$this->storage = new Temporary(array());
		Filesystem::mount($this->storage, array(), '/');
		$this->view = new View('');
		$this->updater = new \OC\Files\Cache\Updater($this->view);
		$this->cache = $this->storage->getCache();
	}

	protected function tearDown() {
		Filesystem::clearMounts();

		$this->logout();
		parent::tearDown();
	}

	public function testNewFile() {
		$this->storage->file_put_contents('foo.txt', 'bar');
		$this->assertFalse($this->cache->inCache('foo.txt'));

		$this->updater->update('/foo.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$cached = $this->cache->get('foo.txt');
		$this->assertEquals(3, $cached['size']);
		$this->assertEquals('text/plain', $cached['mimetype']);
	}

	public function testUpdatedFile() {
		$this->view->file_put_contents('/foo.txt', 'bar');
		$cached = $this->cache->get('foo.txt');
		$this->assertEquals(3, $cached['size']);
		$this->assertEquals('text/plain', $cached['mimetype']);

		$this->storage->file_put_contents('foo.txt', 'qwerty');

		$cached = $this->cache->get('foo.txt');
		$this->assertEquals(3, $cached['size']);

		$this->updater->update('/foo.txt');

		$cached = $this->cache->get('foo.txt');
		$this->assertEquals(6, $cached['size']);
	}

	public function testParentSize() {
		$this->storage->getScanner()->scan('');

		$parentCached = $this->cache->get('');
		$this->assertEquals(0, $parentCached['size']);

		$this->storage->file_put_contents('foo.txt', 'bar');

		$parentCached = $this->cache->get('');
		$this->assertEquals(0, $parentCached['size']);

		$this->updater->update('foo.txt');

		$parentCached = $this->cache->get('');
		$this->assertEquals(3, $parentCached['size']);

		$this->storage->file_put_contents('foo.txt', 'qwerty');

		$parentCached = $this->cache->get('');
		$this->assertEquals(3, $parentCached['size']);

		$this->updater->update('foo.txt');

		$parentCached = $this->cache->get('');
		$this->assertEquals(6, $parentCached['size']);

		$this->storage->unlink('foo.txt');

		$parentCached = $this->cache->get('');
		$this->assertEquals(6, $parentCached['size']);

		$this->updater->remove('foo.txt');

		$parentCached = $this->cache->get('');
		$this->assertEquals(0, $parentCached['size']);
	}

	public function testMove() {
		$this->storage->file_put_contents('foo.txt', 'qwerty');
		$this->updater->update('foo.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($this->cache->inCache('bar.txt'));
		$cached = $this->cache->get('foo.txt');

		$this->storage->rename('foo.txt', 'bar.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($this->cache->inCache('bar.txt'));

		$this->updater->rename('foo.txt', 'bar.txt');

		$this->assertFalse($this->cache->inCache('foo.txt'));
		$this->assertTrue($this->cache->inCache('bar.txt'));

		$cachedTarget = $this->cache->get('bar.txt');
		$this->assertEquals($cached['etag'], $cachedTarget['etag']);
		$this->assertEquals($cached['mtime'], $cachedTarget['mtime']);
		$this->assertEquals($cached['size'], $cachedTarget['size']);
		$this->assertEquals($cached['fileid'], $cachedTarget['fileid']);
	}

	public function testMoveNonExistingOverwrite() {
		$this->storage->file_put_contents('bar.txt', 'qwerty');
		$this->updater->update('bar.txt');

		$cached = $this->cache->get('bar.txt');

		$this->updater->rename('foo.txt', 'bar.txt');

		$this->assertFalse($this->cache->inCache('foo.txt'));
		$this->assertTrue($this->cache->inCache('bar.txt'));

		$cachedTarget = $this->cache->get('bar.txt');
		$this->assertEquals($cached['etag'], $cachedTarget['etag']);
		$this->assertEquals($cached['mtime'], $cachedTarget['mtime']);
		$this->assertEquals($cached['size'], $cachedTarget['size']);
		$this->assertEquals($cached['fileid'], $cachedTarget['fileid']);
	}

	public function testNewFileDisabled() {
		$this->storage->file_put_contents('foo.txt', 'bar');
		$this->assertFalse($this->cache->inCache('foo.txt'));

		$this->updater->disable();
		$this->updater->update('/foo.txt');

		$this->assertFalse($this->cache->inCache('foo.txt'));
	}

	public function testMoveDisabled() {
		$this->storage->file_put_contents('foo.txt', 'qwerty');
		$this->updater->update('foo.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($this->cache->inCache('bar.txt'));
		$cached = $this->cache->get('foo.txt');

		$this->storage->rename('foo.txt', 'bar.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($this->cache->inCache('bar.txt'));

		$this->updater->disable();
		$this->updater->rename('foo.txt', 'bar.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($this->cache->inCache('bar.txt'));
	}

	public function testMoveCrossStorage() {
		$storage2 = new Temporary(array());
		$cache2 = $storage2->getCache();
		Filesystem::mount($storage2, array(), '/bar');
		$this->storage->file_put_contents('foo.txt', 'qwerty');

		$this->updater->update('foo.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($cache2->inCache('bar.txt'));
		$cached = $this->cache->get('foo.txt');

		// "rename"
		$storage2->file_put_contents('bar.txt', 'qwerty');
		$this->storage->unlink('foo.txt');

		$this->assertTrue($this->cache->inCache('foo.txt'));
		$this->assertFalse($cache2->inCache('bar.txt'));

		$this->updater->rename('foo.txt', 'bar/bar.txt');

		$this->assertFalse($this->cache->inCache('foo.txt'));
		$this->assertTrue($cache2->inCache('bar.txt'));

		$cachedTarget = $cache2->get('bar.txt');
		$this->assertEquals($cached['mtime'], $cachedTarget['mtime']);
		$this->assertEquals($cached['size'], $cachedTarget['size']);
		$this->assertEquals($cached['etag'], $cachedTarget['etag']);
		$this->assertEquals($cached['fileid'], $cachedTarget['fileid']);
	}

	public function testMoveFolderCrossStorage() {
		$storage2 = new Temporary(array());
		$cache2 = $storage2->getCache();
		Filesystem::mount($storage2, array(), '/bar');
		$this->storage->mkdir('foo');
		$this->storage->mkdir('foo/bar');
		$this->storage->file_put_contents('foo/foo.txt', 'qwerty');
		$this->storage->file_put_contents('foo/bar.txt', 'foo');
		$this->storage->file_put_contents('foo/bar/bar.txt', 'qwertyuiop');

		$this->storage->getScanner()->scan('');

		$this->assertTrue($this->cache->inCache('foo'));
		$this->assertTrue($this->cache->inCache('foo/foo.txt'));
		$this->assertTrue($this->cache->inCache('foo/bar.txt'));
		$this->assertTrue($this->cache->inCache('foo/bar'));
		$this->assertTrue($this->cache->inCache('foo/bar/bar.txt'));
		$cached = [];
		$cached[] = $this->cache->get('foo');
		$cached[] = $this->cache->get('foo/foo.txt');
		$cached[] = $this->cache->get('foo/bar.txt');
		$cached[] = $this->cache->get('foo/bar');
		$cached[] = $this->cache->get('foo/bar/bar.txt');

		// add extension to trigger the possible mimetype change
		$this->view->rename('/foo', '/bar/foo.b');

		$this->assertFalse($this->cache->inCache('foo'));
		$this->assertFalse($this->cache->inCache('foo/foo.txt'));
		$this->assertFalse($this->cache->inCache('foo/bar.txt'));
		$this->assertFalse($this->cache->inCache('foo/bar'));
		$this->assertFalse($this->cache->inCache('foo/bar/bar.txt'));
		$this->assertTrue($cache2->inCache('foo.b'));
		$this->assertTrue($cache2->inCache('foo.b/foo.txt'));
		$this->assertTrue($cache2->inCache('foo.b/bar.txt'));
		$this->assertTrue($cache2->inCache('foo.b/bar'));
		$this->assertTrue($cache2->inCache('foo.b/bar/bar.txt'));

		$cachedTarget = [];
		$cachedTarget[] = $cache2->get('foo.b');
		$cachedTarget[] = $cache2->get('foo.b/foo.txt');
		$cachedTarget[] = $cache2->get('foo.b/bar.txt');
		$cachedTarget[] = $cache2->get('foo.b/bar');
		$cachedTarget[] = $cache2->get('foo.b/bar/bar.txt');

		foreach ($cached as $i => $old) {
			$new = $cachedTarget[$i];
			$this->assertEquals($old['mtime'], $new['mtime']);
			$this->assertEquals($old['size'], $new['size']);
			$this->assertEquals($old['etag'], $new['etag']);
			$this->assertEquals($old['fileid'], $new['fileid']);
			$this->assertEquals($old['mimetype'], $new['mimetype']);
		}
	}
}