<?php

use GuzzleHttp\Psr7\UploadedFile;
use MediaWiki\Rest\RequestFromGlobals;

// phpcs:disable MediaWiki.Usage.SuperGlobalsUsage.SuperGlobals

/**
 * @covers \MediaWiki\Rest\RequestFromGlobals
 */
class RequestFromGlobalsTest extends MediaWikiIntegrationTestCase {
	/**
	 * @var RequestFromGlobals
	 */
	private $reqFromGlobals;

	/**
	 * @var array
	 */
	private $oldServer;

	protected function setUp(): void {
		parent::setUp();
		$this->reqFromGlobals = new RequestFromGlobals();

		$this->oldServer = $_SERVER;
	}

	protected function tearDown(): void {
		$_SERVER = $this->oldServer;
		parent::tearDown();
	}

	/**
	 * @dataProvider provideGetMethod
	 */
	public function testGetMethod( $serverVars, $expected ) {
		$this->setServerVars( $serverVars );
		$this->assertEquals( $expected, $this->reqFromGlobals->getMethod() );
	}

	public static function provideGetMethod() {
		return [
			[
				[
					'REQUEST_METHOD' => 'POST'
				],
				'POST',
			],
			[
				[],
				'GET',
			],
			[
				[ 'REQUEST_METHOD' => 'get' ],
				'GET',
			],
		];
	}

	public function testGetUri() {
		$this->setServerVars( [
			'REQUEST_URI' => '/test.php'
		] );

		$this->assertEquals( '/test.php', $this->reqFromGlobals->getUri() );
	}

	public function testGetUri2() {
		$this->setServerVars( [
			'REQUEST_URI' => ':8434/test.php/page/1:1',
		] );

		$this->assertEquals( '/test.php/page/1:1', $this->reqFromGlobals->getUri() );
	}

	public function testGetUri3() {
		$this->setServerVars( [
			'REQUEST_URI' => '/w/rest.php/sandbox.semantic-mediawiki.org:8142/v3/page/html/Berlin',
		] );

		$this->assertEquals(
			'/w/rest.php/sandbox.semantic-mediawiki.org:8142/v3/page/html/Berlin',
			$this->reqFromGlobals->getUri()
		);
	}

	/**
	 * @dataProvider provideGetProtocolVersion
	 */
	public function testGetProtocolVersion( $serverVars, $expected ) {
		$this->setServerVars( $serverVars );
		$this->assertEquals( $expected, $this->reqFromGlobals->getProtocolVersion() );
	}

	public static function provideGetProtocolVersion() {
		return [
			[
				[
					'SERVER_PROTOCOL' => 'HTTP/2'
				],
				2
			],
			[
				[],
				1.1
			]
		];
	}

	public function testGetHeaders() {
		$this->setServerVars( [
			'HTTP_HOST' => '[::1]',
			'CONTENT_LENGTH' => 6,
			'CONTENT_TYPE' => 'application/json',
			'CONTENT_MD5' => 'rL0Y20zC+Fzt72VPzMSk2A==',
		] );

		$this->assertEquals( [
			'Host' => [ '[::1]' ],
			'Content-Length' => [ 6 ],
			'Content-Type' => [ 'application/json' ],
			'Content-Md5' => [ 'rL0Y20zC+Fzt72VPzMSk2A==' ],
		], $this->reqFromGlobals->getHeaders() );
	}

	public function testGetHeaderKeyIsCaseInsensitive() {
		$cacheControl = 'private, must-revalidate, max-age=0';
		$this->setServerVars( [ 'HTTP_CACHE_CONTROL' => $cacheControl ] );

		$this->assertSame( [ $cacheControl ], $this->reqFromGlobals->getHeader( 'Cache-Control' ) );
		$this->assertSame( [ $cacheControl ], $this->reqFromGlobals->getHeader( 'cache-control' ) );
	}

	public function testGetBody() {
		$this->setServerVars( [
			'REQUEST_METHOD' => 'POST',
			'HTTP_ACCEPT' => 'text/html'
		] );

		$this->assertSame( '', $this->reqFromGlobals->getBody()->getContents() );
	}

	public function testGetServerParams() {
		$serverVars = [
			'SERVER_NAME' => 'www.mediawiki.org',
			'SERVER_PROTOCOL' => 'HTTP/1.1',
			'REQUEST_METHOD' => 'POST',
			'HTTP_HOST' => 'www.mediawiki.org',
			'HTTP_ACCEPT' => 'text/html',
			'REMOTE_PORT' => '1234',
			'SCRIPT_NAME' => '/index.php',
		];
		$this->setServerVars( $serverVars );

		$expectedServerParams = $this->reqFromGlobals->getServerParams();

		$diffs = array_diff_assoc( $expectedServerParams, $serverVars );

		$this->assertCount( 2, $diffs );
		$this->assertArrayHasKey( 'REQUEST_TIME_FLOAT', $diffs );
		$this->assertArrayHasKey( 'REQUEST_TIME', $diffs );
	}

	public function testGetCookieParams() {
		$_COOKIE = [
			'testcookie' => true
		];

		$this->assertEquals( [ 'testcookie' => true ], $this->reqFromGlobals->getCookieParams() );
	}

	public function testGetQueryParams() {
		$query = [
			[
				'title' => 'foo',
				'action' => 'query'
			]
		];
		$_GET = $query;

		$this->assertEquals( $query, $this->reqFromGlobals->getQueryParams() );
	}

	public function testGetUploadedFiles() {
		$_FILES = [
			'file' => [
				'name' => 'Foo.txt',
				'type' => 'text/plain',
				'tmp_name' => '/tmp/foobar',
				'error' => UPLOAD_ERR_OK,
				'size' => 20,
			]
		];

		$this->assertEquals(
			[
				'file' => new UploadedFile(
					'/tmp/foobar',
					20, UPLOAD_ERR_OK,
					'Foo.txt',
					'text/plain'
				)
			],
			$this->reqFromGlobals->getUploadedFiles()
		);
	}

	public function testGetPostParams() {
		$form = [
			'token' => '983yh4edji',
			'action' => 'login'
		];
		$_POST = $form;

		$this->assertEquals( $form, $this->reqFromGlobals->getPostParams() );
	}

	protected function setServerVars( $vars ) {
		// Don't remove vars which should be available in all SAPI.
		if ( !isset( $vars['REQUEST_TIME_FLOAT'] ) ) {
			$vars['REQUEST_TIME_FLOAT'] = $_SERVER['REQUEST_TIME_FLOAT'];
		}
		if ( !isset( $vars['REQUEST_TIME'] ) ) {
			$vars['REQUEST_TIME'] = $_SERVER['REQUEST_TIME'];
		}
		$_SERVER = $vars;
	}
}
