<?php

namespace GuzzleHttp\Tests\Handler;

use GuzzleHttp\Exception\ConnectException;
use GuzzleHttp\Handler\CurlFactory;
use GuzzleHttp\Handler\CurlHandler;
use GuzzleHttp\Promise\FulfilledPromise;
use GuzzleHttp\Psr7;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\Psr7\Response;
use GuzzleHttp\Server\Server;
use GuzzleHttp\TransportSharing;
use GuzzleHttp\Utils;
use PHPUnit\Framework\TestCase;

/**
 * @covers \GuzzleHttp\Handler\CurlHandler
 */
class CurlHandlerTest extends TestCase
{
    protected function getHandler($options = [])
    {
        return new CurlHandler($options);
    }

    public function testCreatesCurlErrors()
    {
        $handler = new CurlHandler();
        $request = new Request('GET', 'http://localhost:123');

        $this->expectException(ConnectException::class);
        $this->expectExceptionMessage('cURL');
        $handler($request, ['timeout' => 0.001, 'connect_timeout' => 0.001])->wait();
    }

    public function testRedactsUserInfoInErrors()
    {
        $handler = new CurlHandler();
        $request = new Request('GET', 'http://my_user:secretPass@localhost:123');

        try {
            $handler($request, ['timeout' => 0.001, 'connect_timeout' => 0.001])->wait();
            $this->fail('Must throw an Exception.');
        } catch (\Throwable $e) {
            $this->assertStringNotContainsString('secretPass', $e->getMessage());
        }
    }

    public function testReusesHandles()
    {
        Server::flush();
        $response = new Response(200);
        Server::enqueue([$response, $response]);
        $a = new CurlHandler();
        $request = new Request('GET', Server::$url);
        self::assertInstanceOf(FulfilledPromise::class, $a($request, []));
        self::assertInstanceOf(FulfilledPromise::class, $a($request, []));
    }

    public function testDoesSleep()
    {
        $response = new Response(200);
        Server::enqueue([$response]);
        $a = new CurlHandler();
        $request = new Request('GET', Server::$url);
        $s = Utils::currentTime();
        $a($request, ['delay' => 0.1])->wait();
        self::assertGreaterThan(0.0001, Utils::currentTime() - $s);
    }

    public function testTransportSharingOptionAppliesCurlShare(): void
    {
        self::skipIfCurlShareIsUnavailable();

        $_SERVER['curl_test'] = true;
        unset($_SERVER['_curl'], $_SERVER['_curl_share'], $_SERVER['_curl_share_init_count']);
        Server::flush();
        Server::enqueue([new Response(200)]);

        try {
            $handler = new CurlHandler([
                'transport_sharing' => TransportSharing::HANDLER_PREFER,
            ]);

            $handler(new Request('GET', Server::$url), [])->wait();

            self::assertArrayHasKey(\CURLOPT_SHARE, $_SERVER['_curl']);
            self::assertSame(1, $_SERVER['_curl_share_init_count']);
            self::assertSame([
                \CURL_LOCK_DATA_DNS,
                \CURL_LOCK_DATA_SSL_SESSION,
            ], $_SERVER['_curl_share'][\CURLSHOPT_SHARE]);
        } finally {
            unset($_SERVER['curl_test'], $_SERVER['_curl'], $_SERVER['_curl_share'], $_SERVER['_curl_share_init_count']);
        }
    }

    public function testPreferredTransportSharingCanBeUsedWithCustomFactory(): void
    {
        $handler = new CurlHandler([
            'handle_factory' => new CurlFactory(0),
            'transport_sharing' => TransportSharing::HANDLER_PREFER,
        ]);

        self::assertInstanceOf(CurlHandler::class, $handler);
    }

    public function testRequiredTransportSharingCannotBeUsedWithCustomFactory(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('handle_factory');

        new CurlHandler([
            'handle_factory' => new CurlFactory(0),
            'transport_sharing' => TransportSharing::HANDLER_REQUIRE,
        ]);
    }

    public function testDisabledTransportSharingCanBeUsedWithCustomFactory(): void
    {
        $handler = new CurlHandler([
            'handle_factory' => new CurlFactory(0),
            'transport_sharing' => TransportSharing::NONE,
        ]);

        self::assertInstanceOf(CurlHandler::class, $handler);
    }

    public function testUsesContentLengthWhenOverInMemorySize()
    {
        Server::flush();
        Server::enqueue([new Response()]);
        $stream = Psr7\Utils::streamFor(\str_repeat('.', 1000000));
        $handler = new CurlHandler();
        $request = new Request(
            'PUT',
            Server::$url,
            ['Content-Length' => '1000000'],
            $stream
        );
        $handler($request, [])->wait();
        $received = Server::received()[0];
        self::assertEquals(1000000, $received->getHeaderLine('Content-Length'));
        self::assertFalse($received->hasHeader('Transfer-Encoding'));
    }

    private static function skipIfCurlShareIsUnavailable(): void
    {
        if (!\function_exists('curl_share_init') || !\function_exists('curl_share_setopt') || !\defined('CURLOPT_SHARE')) {
            self::markTestSkipped('cURL share handles are unavailable.');
        }
    }
}
