<?php
/**
 * @link https://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license https://www.yiiframework.com/license/
 */

namespace yiiunit\framework\web;

use Error;
use Exception;
use RuntimeException;
use Yii;
use yii\helpers\StringHelper;
use yii\web\Cookie;
use yii\web\HttpException;
use yii\web\Response;
use yiiunit\framework\web\mocks\TestRequestComponent;

/**
 * @group web
 */
class ResponseTest extends \yiiunit\TestCase
{
    /**
     * @var \yii\web\Response
     */
    public $response;

    protected function setUp(): void
    {
        parent::setUp();
        $this->mockWebApplication([
            'components' => [
                'request' => [
                    'class' => TestRequestComponent::class,
                ],
            ],
        ]);
        $this->response = new \yii\web\Response();
    }

    public static function rightRanges(): array
    {
        // TODO test more cases for range requests and check for rfc compatibility
        // https://tools.ietf.org/html/rfc2616
        return [
            ['0-5', '0-5', 6, '12ёж'],
            ['2-', '2-66', 65, 'ёжик3456798áèabcdefghijklmnopqrstuvwxyz!"§$%&/(ёжик)=?'],
            ['-12', '55-66', 12, '(ёжик)=?'],
        ];
    }

    /**
     * @dataProvider rightRanges
     *
     * @param string $rangeHeader The range header.
     * @param string $expectedHeader The expected header.
     * @param int $length The length of the content.
     * @param string $expectedContent The expected content.
     */
    public function testSendFileRanges(
        string $rangeHeader,
        string $expectedHeader,
        int $length,
        string $expectedContent
    ): void {
        $dataFile = Yii::getAlias('@yiiunit/data/web/data.txt');
        $fullContent = file_get_contents($dataFile);
        $_SERVER['HTTP_RANGE'] = 'bytes=' . $rangeHeader;
        ob_start();
        $this->response->sendFile($dataFile)->send();
        $content = ob_get_clean();

        $this->assertEquals($expectedContent, $content);
        $this->assertEquals(206, $this->response->statusCode);
        $headers = $this->response->headers;
        $this->assertEquals('bytes', $headers->get('Accept-Ranges'));
        $this->assertEquals(
            'bytes ' . $expectedHeader . '/' . StringHelper::byteLength($fullContent),
            $headers->get('Content-Range')
        );
        $this->assertEquals('text/plain', $headers->get('Content-Type'));
        $this->assertEquals((string)$length, $headers->get('Content-Length'));
    }

    public static function wrongRanges(): array
    {
        // TODO test more cases for range requests and check for rfc compatibility
        // https://tools.ietf.org/html/rfc2616
        return [
            ['1-2,3-5,6-10'], // multiple range request not supported
            ['5-1'],          // last-byte-pos value is less than its first-byte-pos value
            ['-100000'],      // last-byte-pos bigger then content length
            ['10000-'],       // first-byte-pos bigger then content length
        ];
    }

    /**
     * @dataProvider wrongRanges
     *
     * @param string $rangeHeader the range header.
     */
    public function testSendFileWrongRanges(string $rangeHeader): void
    {
        $this->expectException('yii\web\RangeNotSatisfiableHttpException');

        $dataFile = Yii::getAlias('@yiiunit/data/web/data.txt');
        $_SERVER['HTTP_RANGE'] = 'bytes=' . $rangeHeader;
        $this->response->sendFile($dataFile);
    }

    protected function generateTestFileContent()
    {
        return '12ёжик3456798áèabcdefghijklmnopqrstuvwxyz!"§$%&/(ёжик)=?';
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/7529
     */
    public function testSendContentAsFile(): void
    {
        ob_start();
        $this->response->sendContentAsFile('test', 'test.txt')->send();
        $content = ob_get_clean();

        static::assertEquals('test', $content);
        static::assertEquals(200, $this->response->statusCode);
        $headers = $this->response->headers;
        static::assertEquals('application/octet-stream', $headers->get('Content-Type'));
        static::assertEquals('attachment; filename="test.txt"', $headers->get('Content-Disposition'));
        static::assertEquals(4, $headers->get('Content-Length'));
    }

    public function testRedirect(): void
    {
        $_SERVER['REQUEST_URI'] = 'http://test-domain.com/';
        $this->assertEquals('/', $this->response->redirect('')->headers->get('location'));
        $this->assertFalse($this->response->redirect(null)->headers->get('location'));
        $this->assertEquals(
            'http://some-external-domain.com',
            $this->response->redirect('http://some-external-domain.com')->headers->get('location')
        );
        $this->assertEquals('/', $this->response->redirect('/')->headers->get('location'));
        $this->assertEquals(
            '/something-relative',
            $this->response->redirect('/something-relative')->headers->get('location')
        );
        $this->assertEquals('/index.php?r=', $this->response->redirect(['/'])->headers->get('location'));
        $this->assertEquals(
            '/index.php?r=view',
            $this->response->redirect(['view'])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller',
            $this->response->redirect(['/controller'])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller%2Findex',
            $this->response->redirect(['/controller/index'])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller%2Findex',
            $this->response->redirect(['//controller/index'])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller%2Findex&id=3',
            $this->response->redirect(['//controller/index', 'id' => 3])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller%2Findex&id_1=3&id_2=4',
            $this->response->redirect(['//controller/index', 'id_1' => 3, 'id_2' => 4])->headers->get('location')
        );
        $this->assertEquals(
            '/index.php?r=controller%2Findex&slug=%C3%A4%C3%B6%C3%BC%C3%9F%21%22%C2%A7%24%25%26%2F%28%29',
            $this->response->redirect(['//controller/index', 'slug' => 'äöüß!"§$%&/()'])->headers->get('location')
        );
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/19795
     */
    public function testRedirectNewLine(): void
    {
        $this->expectException('yii\base\InvalidRouteException');

        $this->response->redirect(urldecode('http://test-domain.com/gql.json;%0aa.html'));
    }

    /**
     * @dataProvider dataProviderAjaxRedirectInternetExplorer11
     *
     * @param string $userAgent User agent string
     * @param array $statusCodes Status codes
     */
    public function testAjaxRedirectInternetExplorer11(string $userAgent, array $statusCodes): void
    {
        $_SERVER['REQUEST_URI'] = 'http://test-domain.com/';
        $request= Yii::$app->request;
        /** @var TestRequestComponent $request */
        $request->getIssAjaxOverride = true;
        $request->getUserAgentOverride = $userAgent;
        foreach([true, false] as $pjaxOverride) {
            $request->getIsPjaxOverride = $pjaxOverride;
            foreach(['GET', 'POST'] as $methodOverride) {
                $request->getMethodOverride = $methodOverride;
                foreach($statusCodes as $statusCode => $expectStatusCode) {
                    $this->assertEquals($expectStatusCode, $this->response->redirect(['view'], $statusCode)->statusCode);
                }
            }
        }
    }

    /**
     * @link https://blogs.msdn.microsoft.com/ieinternals/2013/09/21/internet-explorer-11s-many-user-agent-strings/
     * @link https://stackoverflow.com/questions/30591706/what-is-the-user-agent-string-name-for-microsoft-edge/31279980#31279980
     * @link https://developers.whatismybrowser.com/useragents/explore/software_name/chrome/
     * @link https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent/Firefox
     * @return array
     */
    public static function dataProviderAjaxRedirectInternetExplorer11(): array
    {
        return [
            ['Mozilla/5.0 (Android 4.4; Mobile; rv:41.0) Gecko/41.0 Firefox/41.0', [301 => 301, 302 => 302]], // Firefox
            ['Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko', [301 => 200, 302 => 200]], // IE 11
            [ // IE 11
                'Mozilla/5.0 (Windows NT 6.3; Trident/7.0; .NET4.0E; .NET4.0C; rv:11.0) like Gecko',
                [301 => 200, 302 => 200]
            ],
            [ // Chrome
                'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36',
                [301 => 301, 302 => 302]
            ],
            [ // Edge
                'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10136',
                [301 => 301, 302 => 302]
            ],
            [ // special windows versions (for tablets or IoT devices)
                'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)',
                [301 => 200, 302 => 200]
            ],
        ];
    }

    /**
     * @dataProvider dataProviderSetStatusCodeByException
     *
     * @param Exception $exception The exception to set.
     * @param int $statusCode The expected status code.
     */
    public function testSetStatusCodeByException(Exception|Error $exception, int $statusCode): void
    {
        $this->response->setStatusCodeByException($exception);
        $this->assertEquals($statusCode, $this->response->getStatusCode());
    }

    /**
     * @see https://github.com/yiisoft/yii2/pull/18290
     */
    public function testNonSeekableStream(): void
    {
        $stream = fopen('php://output', 'r+');
        ob_start();
        $this->response->sendStreamAsFile($stream, 'test-stream')->send();
        ob_get_clean();
        static::assertEquals(200, $this->response->statusCode);
    }

    public static function dataProviderSetStatusCodeByException(): array
    {
        $data = [
            [
                new Exception(),
                500,
            ],
            [
                new RuntimeException(),
                500,
            ],
            [
                new HttpException(500),
                500,
            ],
            [
                new HttpException(403),
                403,
            ],
            [
                new HttpException(404),
                404,
            ],
            [
                new HttpException(301),
                301,
            ],
            [
                new HttpException(200),
                200,
            ],
        ];

        if (class_exists('Error')) {
            $data[] = [
                new Error(),
                500,
            ];
        }

        return $data;
    }

    public static function formatDataProvider(): array
    {
        return [
            [Response::FORMAT_JSON, '{"value":1}'],
            [Response::FORMAT_HTML, '<html><head><title>Test</title></head><body>Test Body</body></html>'],
            [Response::FORMAT_XML, '<?xml ?><test></test>'],
            [Response::FORMAT_RAW, 'Something'],
        ];
    }

    /**
     * @dataProvider formatDataProvider
     *
     * @param string $format Response format.
     * @param string $content Response content.
     */
    public function testSkipFormatter(string $format, string $content): void
    {
        $response = new Response();
        $response->format = $format;
        $response->content = $content;
        ob_start();
        $response->send();
        $actualContent = ob_get_clean();

        $this->assertSame($content, $actualContent);
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/17094
     */
    public function testEmptyContentOn204(): void
    {
        $this->assertEmptyContentOn(204);
    }

    public function testSettingContentToNullOn204(): void
    {
        $this->assertEmptyContentOn(
            204,
            function (Response $response) {
                $this->assertSame($response->content, '');
            }
        );
    }

    public function testSettingStreamToNullOn204(): void
    {
        $this->assertSettingStreamToNullOn(204);
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/18199
     */
    public function testEmptyContentOn304(): void
    {
        $this->assertEmptyContentOn(304);
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/18199
     */
    public function testSettingContentToNullOn304(): void
    {
        $this->assertEmptyContentOn(
            304,
            function (Response $response) {
                $this->assertSame($response->content, '');
            }
        );
    }

    public function testSettingStreamToNullOn304(): void
    {
        $this->assertSettingStreamToNullOn(304);
    }

    public function testSendFileWithInvalidCharactersInFileName(): void
    {
        $response = new Response();
        $dataFile = Yii::getAlias('@yiiunit/data/web/data.txt');

        $response->sendFile($dataFile, "test\x7Ftest.txt");

        $this->assertSame(
            "attachment; filename=\"test_test.txt\"; filename*=utf-8''test%7Ftest.txt",
            $response->headers['content-disposition']
        );
    }

    /**
     * @dataProvider cookiesTestProvider
     */
    public function testCookies($cookieConfig, $expected): void
    {
        $response = new Response();
        $response->cookies->add(new Cookie(array_merge(
            [
                'name'     => 'test',
                'value'    => 'testValue',
            ],
            $cookieConfig
        )));

        ob_start();
        $response->send();
        $content = ob_get_clean();

        $cookies = $this->parseHeaderCookies();
        if ($cookies === false) {
            // Unable to resolve cookies, only way to test is that it doesn't create any errors
            $this->assertEquals('', $content);
        } else {
            $testCookie = $cookies['test'];
            $actual = array_intersect_key($testCookie, $expected);
            ksort($actual);
            ksort($expected);
            $this->assertEquals($expected, $actual);
        }
    }

    public function cookiesTestProvider()
    {
        $expireInt = time() + 3600;
        $expireString = date('D, d-M-Y H:i:s', $expireInt) . ' GMT';

        $testCases = [
            'same-site' => [
                ['sameSite' => Cookie::SAME_SITE_STRICT],
                ['samesite' => Cookie::SAME_SITE_STRICT],
            ],
            'expire-as-int' => [
                ['expire' => $expireInt],
                ['expires' => $expireString],
            ],
            'expire-as-string' => [
                ['expire' => $expireString],
                ['expires' => $expireString],
            ],
        ];

        if (version_compare(PHP_VERSION, '5.5.0', '>=')) {
            $testCases = [...$testCases, 'expire-as-date_time' => [
                ['expire' => new \DateTime('@' . $expireInt)],
                ['expires' => $expireString],
            ], 'expire-as-date_time_immutable' => [
                ['expire' => new \DateTimeImmutable('@' . $expireInt)],
                ['expires' => $expireString],
            ]];
        }

        return $testCases;
    }

    /**
     * Tries to parse cookies set in the response headers.
     * When running PHP on the CLI headers are not available (the `headers_list()` function always returns an
     * empty array). If possible use xDebug: http://xdebug.org/docs/all_functions#xdebug_get_headers
     * @param $name
     * @return array|false
     */
    protected function parseHeaderCookies() {

        if (!function_exists('xdebug_get_headers')) {
            return false;
        }

        $cookies = [];
        foreach(xdebug_get_headers() as $header) {
            if (!str_starts_with((string) $header, 'Set-Cookie: ')) {
                continue;
            }

            $name = null;
            $params = [];
            $pairs = explode(';', substr((string) $header, 12));
            foreach ($pairs as  $index => $pair) {
                $pair = trim($pair);
                if (!str_contains($pair, '=')) {
                    $params[strtolower($pair)] = true;
                } else {
                    [$paramName, $paramValue] = explode('=', $pair, 2);
                    if ($index === 0) {
                        $name = $paramName;
                        $params['value'] = urldecode($paramValue);
                    } else {
                        $params[strtolower($paramName)] = urldecode($paramValue);
                    }
                }
            }
            if ($name === null) {
                throw new \Exception('Could not determine cookie name for header "' . $header . '".');
            }
            $cookies[$name] = $params;
        }

        return $cookies;
    }

    /**
     * Asserts that given a status code, the response will have an empty content body. If the lambda is present, it will
     * call the lambda what is supposed to handle other assertions.
     *
     * @param int $statusCode
     * @param callable|null $callback lambda in charge to handle other assertions
     *                                callable(\yii\web\Response $response):void
     */
    protected function assertEmptyContentOn($statusCode, $callback = null)
    {
        $response = new Response();
        $response->setStatusCode($statusCode);
        $response->content = 'not empty content';

        ob_start();
        $response->send();
        $content = ob_get_clean();
        $this->assertSame($content, '');

        if ($callback && is_callable($callback)) {
            $callback($response);
        }
    }

    /**
     * Asserts that given a status code, the response will have an empty content body, no matter
     * if the response is a stream as file
     *
     * @param int $statusCode
     */
    protected function assertSettingStreamToNullOn($statusCode)
    {
        $response = new Response();
        $dataFile = Yii::getAlias('@yiiunit/data/web/data.txt');

        $response->sendFile($dataFile);
        $response->setStatusCode($statusCode);

        ob_start();
        $response->send();
        $content = ob_get_clean();
        $this->assertSame($content, '');
        $this->assertNull($response->stream);
    }
}