<?php

namespace Friendica\Test\src\Core\Cache;

use Friendica\Core\Cache\MemcachedCacheDriver;
use Friendica\Test\MockedTest;
use Friendica\Test\Util\AppMockTrait;
use Friendica\Test\Util\DateTimeFormatMockTrait;
use Friendica\Test\Util\VFSTrait;
use Friendica\Util\PidFile;

abstract class CacheTest extends MockedTest
{
	use VFSTrait;
	use AppMockTrait;
	use DateTimeFormatMockTrait;

	/**
	 * @var int Start time of the mock (used for time operations)
	 */
	protected $startTime = 1417011228;

	/**
	 * @var \Friendica\Core\Cache\ICacheDriver
	 */
	protected $instance;

	/**
	 * @var \Friendica\Core\Cache\IMemoryCacheDriver
	 */
	protected $cache;

	/**
	 * Dataset for test setting different types in the cache
	 * @return array
	 */
	public function dataTypesInCache()
	{
		return [
			'string'    => ['data' => 'foobar'],
			'integer'   => ['data' => 1],
			'boolTrue'  => ['data' => true],
			'boolFalse' => ['data' => false],
			'float'     => ['data' => 4.6634234],
			'array'     => ['data' => ['1', '2', '3', '4', '5']],
			'object'    => ['data' => new PidFile()],
			'null'      => ['data' => null],
		];
	}

	/**
	 * Dataset for simple value sets/gets
	 * @return array
	 */
	public function dataSimple()
	{
		return [
			'string' => [
				'value1' => 'foobar',
				'value2' => 'ipsum lorum',
				'value3' => 'test',
				'value4' => 'lasttest',
			],
		];
	}

	abstract protected function getInstance();

	protected function setUp()
	{
		$this->setUpVfsDir();
		$configMock = \Mockery::mock('Friendica\Core\Config\ConfigCache');
		$this->mockApp($this->root, $configMock);
		$this->app
			->shouldReceive('getHostname')
			->andReturn('friendica.local');

		$this->mockUtcNow($this->startTime);

		parent::setUp();

		$this->instance = $this->getInstance();

		// Default config
		$this->mockConfigGet('config', 'hostname', 'localhost');
		$this->mockConfigGet('system', 'throttle_limit_day', 100);
		$this->mockConfigGet('system', 'throttle_limit_week', 100);
		$this->mockConfigGet('system', 'throttle_limit_month', 100);
		$this->mockConfigGet('system', 'theme', 'system_theme');

		$this->instance->clear(false);
	}

	/**
	 * @small
	 * @dataProvider dataSimple
	 * @param mixed $value1 a first
	 * @param mixed $value2 a second
	 */
	function testSimple($value1, $value2) {
		$this->assertNull($this->instance->get('value1'));

		$this->instance->set('value1', $value1);
		$received = $this->instance->get('value1');
		$this->assertEquals($value1, $received, 'Value received from cache not equal to the original');

		$this->instance->set('value1', $value2);
		$received = $this->instance->get('value1');
		$this->assertEquals($value2, $received, 'Value not overwritten by second set');

		$this->instance->set('value2', $value1);
		$received2 = $this->instance->get('value2');
		$this->assertEquals($value2, $received, 'Value changed while setting other variable');
		$this->assertEquals($value1, $received2, 'Second value not equal to original');

		$this->assertNull($this->instance->get('not_set'), 'Unset value not equal to null');

		$this->assertTrue($this->instance->delete('value1'));
		$this->assertNull($this->instance->get('value1'));
	}

	/**
	 * @small
	 * @dataProvider dataSimple
	 * @param mixed $value1 a first
	 * @param mixed $value2 a second
	 * @param mixed $value3 a third
	 * @param mixed $value4 a fourth
	 */
	function testClear($value1, $value2, $value3, $value4) {
		$value = 'ipsum lorum';
		$this->instance->set('1_value1', $value1);
		$this->instance->set('1_value2', $value2);
		$this->instance->set('2_value1', $value3);
		$this->instance->set('3_value1', $value4);

		$this->assertEquals([
			'1_value1' => $value1,
			'1_value2' => $value2,
			'2_value1' => $value3,
			'3_value1' => $value4,
		], [
			'1_value1' => $this->instance->get('1_value1'),
			'1_value2' => $this->instance->get('1_value2'),
			'2_value1' => $this->instance->get('2_value1'),
			'3_value1' => $this->instance->get('3_value1'),
		]);

		$this->assertTrue($this->instance->clear());

		$this->assertEquals([
			'1_value1' => $value1,
			'1_value2' => $value2,
			'2_value1' => $value3,
			'3_value1' => $value4,
		], [
			'1_value1' => $this->instance->get('1_value1'),
			'1_value2' => $this->instance->get('1_value2'),
			'2_value1' => $this->instance->get('2_value1'),
			'3_value1' => $this->instance->get('3_value1'),
		]);

		$this->assertTrue($this->instance->clear(false));

		$this->assertEquals([
			'1_value1' => null,
			'1_value2' => null,
			'2_value3' => null,
			'3_value4' => null,
		], [
			'1_value1' => $this->instance->get('1_value1'),
			'1_value2' => $this->instance->get('1_value2'),
			'2_value3' => $this->instance->get('2_value3'),
			'3_value4' => $this->instance->get('3_value4'),
		]);
	}

	/**
	 * @medium
	 */
	function testTTL() {
		$this->markTestSkipped('taking too much time without mocking');

		$this->assertNull($this->instance->get('value1'));

		$value = 'foobar';
		$this->instance->set('value1', $value, 1);
		$received = $this->instance->get('value1');
		$this->assertEquals($value, $received, 'Value received from cache not equal to the original');

		sleep(2);

		$this->assertNull($this->instance->get('value1'));
	}

	/**
	 * @small
	 * @param $data mixed the data to store in the cache
	 * @dataProvider dataTypesInCache
	 */
	function testDifferentTypesInCache($data) {
		$this->instance->set('val', $data);
		$received = $this->instance->get('val');
		$this->assertEquals($data, $received, 'Value type changed from ' . gettype($data) . ' to ' . gettype($received));
	}

	/**
	 * @small
	 * @param mixed $value1 a first
	 * @param mixed $value2 a second
	 * @param mixed $value3 a third
	 * @dataProvider dataSimple
	 */
	public function testGetAllKeys($value1, $value2, $value3) {
		if ($this->cache instanceof MemcachedCacheDriver) {
			$this->markTestSkipped('Memcached doesn\'t support getAllKeys anymore');
		}

		$this->assertTrue($this->instance->set('value1', $value1));
		$this->assertTrue($this->instance->set('value2', $value2));
		$this->assertTrue($this->instance->set('test_value3', $value3));

		$list = $this->instance->getAllKeys();

		$this->assertContains('value1', $list);
		$this->assertContains('value2', $list);
		$this->assertContains('test_value3', $list);

		$list = $this->instance->getAllKeys('test');

		$this->assertContains('test_value3', $list);
	}
}