<?php

/*
 * This file is part of the Predis package.
 *
 * (c) 2009-2020 Daniele Alessandri
 * (c) 2021-2026 Till Krüss
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Predis\Connection;

use ArgumentCountError;
use PHPUnit\Framework\MockObject\MockObject;
use Predis\Client;
use Predis\ClientException;
use Predis\Command\Argument\Stream\XInfoStreamOptions;
use Predis\Command\RawCommand;
use Predis\NotSupportedException;
use Predis\Response\Error as ErrorResponse;
use Predis\Response\ErrorInterface as ErrorResponseInterface;
use PredisTestCase;
use ReflectionClass;
use Relay\Exception as RelayException;
use Relay\Relay;
use TypeError;

/**
 * @group ext-relay
 * @requires extension relay
 */
class RelayConnectionTest extends PredisTestCase
{
    /**
     * @var Relay
     */
    private $mockClient;

    /**
     * @var ParametersInterface
     */
    private $parameters;

    /**
     * @var RelayConnection
     */
    private $connection;

    protected function setUp(): void
    {
        $this->mockClient = $this->getMockBuilder(Relay::class)->getMock();
        $this->parameters = new Parameters();

        $this->connection = new RelayConnection($this->parameters, $this->mockClient);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testIsConnected(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->assertTrue($this->connection->isConnected());
    }

    /**
     * @group disconnected
     */
    public function testReadThrowsException(): void
    {
        $this->expectException(NotSupportedException::class);
        $this->expectExceptionMessage('The "relay" extension does not support reading responses.');

        $this->connection->read();
    }

    /**
     * @group disconnected
     */
    public function testWriteThrowsException(): void
    {
        $this->expectException(NotSupportedException::class);
        $this->expectExceptionMessage('The "relay" extension does not support writing operations.');

        $this->connection->write('foobar');
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testDisconnect(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->expects($this->once())
            ->method('close')
            ->withAnyParameters();

        $this->connection->disconnect();
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testGetClient(): void
    {
        $this->assertSame($this->mockClient, $this->connection->getClient());
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteCommandOnAlreadyConnectedClient(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->expects($this->once())
            ->method('rawCommand')
            ->with('GET', 'foo')
            ->willReturn('bar');

        $response = $this->connection->executeCommand(new RawCommand('GET', ['foo']));

        $this->assertSame('bar', $response);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteAtypicalCommandOnAlreadyConnectedClient(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->expects($this->once())
            ->method('AUTH')
            ->with(['foo', 'bar'])
            ->willReturn(true);

        $response = $this->connection->executeCommand(new RawCommand('AUTH', ['foo', 'bar']));

        $this->assertTrue($response);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteSelectOnClient(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->expects($this->once())
            ->method('SELECT')
            ->with(1)
            ->willReturn(true);

        $response = $this->connection->executeCommand(new RawCommand('SELECT', [1]));

        $this->assertTrue($response);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteSelectReturnsErrorResponseOnNonIntegerDatabase(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->method('SELECT')
            ->willThrowException(new TypeError('Argument #1 ($db) must be of type int, string given'));

        $response = $this->connection->executeCommand(new RawCommand('SELECT', ['x']));

        $this->assertInstanceOf(ErrorResponse::class, $response);
        $this->assertSame('ERR value is not an integer or out of range', (string) $response);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteSelectDoesNotHideArgumentCountError(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(true);

        $this->mockClient
            ->method('SELECT')
            ->willThrowException(new ArgumentCountError('Too few arguments'));

        $this->expectException(ArgumentCountError::class);

        $this->connection->executeCommand(new RawCommand('SELECT', []));
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testExecuteCommandOnNonConnectedClient(): void
    {
        $this->mockClient
            ->expects($this->exactly(2))
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(false);

        $this->mockClient
            ->expects($this->once())
            ->method('connect')
            ->with($this->parameters->host, $this->parameters->port);

        $this->mockClient
            ->expects($this->once())
            ->method('rawCommand')
            ->with('GET', 'foo')
            ->willReturn('bar');

        $response = $this->connection->executeCommand(new RawCommand('GET', ['foo']));

        $this->assertSame('bar', $response);
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testConnectExecutesOnConnectionCommand(): void
    {
        $this->mockClient
            ->expects($this->exactly(3))
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(false);

        $this->mockClient
            ->expects($this->once())
            ->method('connect')
            ->with($this->parameters->host, $this->parameters->port);

        $this->mockClient
            ->expects($this->exactly(2))
            ->method('rawCommand')
            ->withConsecutive(['GET', 'foo'], ['GET', 'bar'])
            ->willReturnOnConsecutiveCalls('baz', 'bad');

        $this->connection->addConnectCommand(new RawCommand('GET', ['foo']));
        $this->connection->addConnectCommand(new RawCommand('GET', ['bar']));

        $this->connection->connect();
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testConnectThrowsExceptionOnErrorResponse(): void
    {
        $this->mockClient
            ->expects($this->exactly(4))
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(false);

        $this->mockClient
            ->expects($this->once())
            ->method('connect')
            ->with($this->parameters->host, $this->parameters->port);

        $this->mockClient
            ->expects($this->exactly(2))
            ->method('rawCommand')
            ->withConsecutive(['GET', 'foo'], ['GET', 'bar'])
            ->willReturnOnConsecutiveCalls('baz', new ErrorResponse('FooBar'));

        $this->connection->addConnectCommand(new RawCommand('GET', ['foo']));
        $this->connection->addConnectCommand(new RawCommand('GET', ['bar']));

        $this->expectException(ConnectionException::class);
        $this->expectExceptionMessage('`GET` failed: FooBar [tcp://127.0.0.1:6379]');

        $this->connection->connect();
    }

    /**
     * @group disconnected
     * @return void
     */
    public function testConnectDoNotExecuteCommands(): void
    {
        $this->mockClient
            ->expects($this->once())
            ->method('isConnected')
            ->withAnyParameters()
            ->willReturn(false);

        $this->mockClient
            ->expects($this->once())
            ->method('connect')
            ->with($this->parameters->host, $this->parameters->port);

        $this->mockClient
            ->expects($this->never())
            ->method('rawCommand')
            ->withAnyParameters();

        $this->connection->connect();
    }

    /**
     * {@inheritDoc}
     */
    public function getConnectionClass(): string
    {
        return RelayConnection::class;
    }

    /**
     * @group disconnected
     */
    public function testThrowsExceptionOnInitializationCommandFailure(): void
    {
        $this->expectException('Predis\Connection\ConnectionException');
        $this->expectExceptionMessage('`SELECT` failed: ERR invalid DB index [tcp://127.0.0.1:6379]');
        $relayMock = $this->getMockBuilder(Relay::class)->getMock();

        $cmdSelect = RawCommand::create('SELECT', '1000');

        /** @var NodeConnectionInterface|MockObject */
        $connection = $this
            ->getMockBuilder($this->getConnectionClass())
            ->onlyMethods(['executeCommand', 'createResource'])
            ->setConstructorArgs([new Parameters(), $relayMock])
            ->getMock();
        $connection
            ->method('executeCommand')
            ->with($cmdSelect)
            ->willReturn(
                new ErrorResponse('ERR invalid DB index')
            );

        $connection->method('createResource');

        $connection->addConnectCommand($cmdSelect);
        $connection->connect();
    }

    /**
     * @group connected
     */
    public function testGetIdentifierUsesParentGetIdentifier(): void
    {
        $relayMock = $this
            ->getMockBuilder(Relay::class)
            ->onlyMethods(['endpointId'])
            ->getMock();

        $relayMock->method('endpointId')
            ->willThrowException(
                new RelayException('Not Connected')
            );

        /** @var RelayConnection&MockObject $connection */
        $connection = $this
            ->getMockBuilder($this->getConnectionClass())
            ->onlyMethods(['createResource'])
            ->disableOriginalConstructor()
            ->getMock();

        $reflection = new ReflectionClass($connection);
        $propertyClient = $reflection->getProperty('client');
        $propertyClient->setAccessible(true);
        $propertyClient->setValue($connection, $relayMock);
        $propertyParameters = $reflection->getProperty('parameters');
        $propertyParameters->setAccessible(true);
        $propertyParameters->setValue($connection, new Parameters([
            'host' => '127.0.0.1',
            'port' => 6379,
        ]));

        $this->assertEquals('127.0.0.1:6379', $connection->getIdentifier());
    }

    /**
     * @group connected
     */
    public function testGetIdentifierUsesClientEndpointId(): void
    {
        $relayMock = $this
            ->getMockBuilder(Relay::class)
            ->onlyMethods(['endpointId'])
            ->getMock();

        $relayMock->method('endpointId')
            ->willReturn('127.0.0.1:6379');

        /** @var RelayConnection&MockObject $connection */
        $connection = $this
            ->getMockBuilder($this->getConnectionClass())
            ->onlyMethods(['createResource'])
            ->disableOriginalConstructor()
            ->getMock();

        $reflection = new ReflectionClass($connection);
        $propertyClient = $reflection->getProperty('client');
        $propertyClient->setAccessible(true);
        $propertyClient->setValue($connection, $relayMock);

        $this->assertEquals('127.0.0.1:6379', $connection->getIdentifier());
    }

    /**
     * @group connected
     */
    public function testExecuteCommandReturnsErrorResponseWhenItIsThrownByRelay(): void
    {
        $cmdSelect = RawCommand::create('GET', '1');

        $relayMock = $this
            ->getMockBuilder(Relay::class)
            ->onlyMethods(['rawCommand'])
            ->getMock();

        $relayMock->method('rawCommand')
            ->willThrowException(
                new RelayException('RELAY_ERR_REDIS')
            );

        /** @var RelayConnection&MockObject $connection */
        $connection = $this
            ->getMockBuilder($this->getConnectionClass())
            ->onlyMethods(['createResource'])
            ->disableOriginalConstructor()
            ->getMock();

        $reflection = new ReflectionClass($connection);
        $property = $reflection->getProperty('client');
        $property->setAccessible(true);
        $property->setValue($connection, $relayMock);

        $connection->method('createResource');

        $response = $connection->executeCommand($cmdSelect);

        $this->assertInstanceOf(ErrorResponseInterface::class, $response);
        $this->assertInstanceOf(ErrorResponse::class, $response);
        $this->assertSame('RELAY_ERR_REDIS', (string) $response);
    }

    /**
     * @group connected
     */
    public function testExecuteCommandThrowsExceptionWhenThrownByRelayAndItIsNotErrorResponse(): void
    {
        $this->expectException('Predis\ClientException');
        $cmdSelect = RawCommand::create('GET', '1');

        $relayMock = $this
            ->getMockBuilder(Relay::class)
            ->onlyMethods(['rawCommand'])
            ->getMock();

        $relayMock->method('rawCommand')
            ->willThrowException(
                new ClientException('RELAY_ERR_REDIS')
            );

        /** @var RelayConnection&MockObject $connection */
        $connection = $this
            ->getMockBuilder($this->getConnectionClass())
            ->onlyMethods(['createResource'])
            ->disableOriginalConstructor()
            ->getMock();

        $reflection = new ReflectionClass($connection);
        $property = $reflection->getProperty('client');
        $property->setAccessible(true);
        $property->setValue($connection, $relayMock);

        $connection->method('createResource');

        $connection->executeCommand($cmdSelect);
    }

    // ******************************************************************** //
    // ---- INTEGRATION TESTS --------------------------------------------- //
    // ******************************************************************** //

    /**
     * @group connected
     * @dataProvider packingProvider
     */
    public function testExplicitPackingWorksForCommandsAndRawCalls(array $options, $value): void
    {
        $client = $this->createClient($options, ['connections' => 'relay', 'prefix' => 'packed:']);
        $packed = $client->pack($value);

        $this->assertSame('OK', $client->set('normal', $packed));
        $this->assertSame($packed, $client->get('normal'));
        $this->assertSame($value, $client->unpack($client->get('normal')));

        $this->assertSame('OK', $client->executeRaw(['SET', 'raw', $packed]));
        $this->assertSame($packed, $client->executeRaw(['GET', 'raw']));
        $this->assertSame($value, $client->unpack($client->executeRaw(['GET', 'raw'])));
        $this->assertNull($client->executeRaw(['GET', 'packed:raw']));

        $responses = $client->pipeline(static function ($pipe) use ($packed) {
            $pipe->set('pipeline', $packed);
            $pipe->get('pipeline');
        });
        $this->assertSame($packed, $responses[1]);
        $this->assertSame($value, $client->unpack($responses[1]));

        $responses = $client->transaction(static function ($tx) use ($packed) {
            $tx->set('transaction', $packed);
            $tx->get('transaction');
        });
        $this->assertSame($packed, $responses[1]);
        $this->assertSame($value, $client->unpack($responses[1]));
    }

    public function packingProvider(): array
    {
        return [
            'serialization' => [['serializer' => 'php'], ['author' => 'Picard']],
            'compression' => [['compression' => 'lzf'], str_repeat('Make it so. ', 100)],
            'serialization and compression' => [
                ['serializer' => 'php', 'compression' => 'lzf'],
                ['author' => 'Picard', 'quote' => str_repeat('Make it so. ', 100)],
            ],
        ];
    }

    /**
     * @group connected
     */
    public function testRawServerErrorReturnsMessageWithoutThrowing(): void
    {
        $client = $this->createClient(null, ['connections' => 'relay']);
        $client->set('key', 'string');

        $response = $client->executeRaw(['LPUSH', 'key', 'value'], $error);

        $this->assertTrue($error);
        $this->assertStringStartsWith('WRONGTYPE', $response);
        $this->assertStringNotContainsString('Stack trace:', $response);
    }

    /**
     * @group connected
     */
    public function testRawAclAuthenticationAndReconnect(): void
    {
        $client = new Client($this->getParameters(['username' => 'default']), ['connections' => 'relay']);

        $this->assertSame('PONG', $client->ping());
        $this->assertTrue($client->executeRaw(['AUTH', 'default', constant('REDIS_PASSWORD')]));
        $client->disconnect();
        $this->assertSame('PONG', $client->ping());
    }

    /**
     * @group connected
     * @requiresRedisVersion >= 7.0.0
     */
    public function testXinfoMatchesStreamConnectionReplies(): void
    {
        $relay = $this->createClient(null, ['connections' => 'relay']);
        $stream = new Client($this->getParameters());

        $relay->xadd('stream', ['field' => 'value'], '1-0');
        $relay->xgroup->create('stream', 'group', '0');
        $relay->xreadgroup('group', 'consumer', 1, null, false, 'stream', '>');

        $this->assertSame($stream->xinfo->groups('stream'), $relay->xinfo->groups('stream'));
        $this->assertSame(
            $stream->xinfo->stream('stream', (new XInfoStreamOptions())->full(5)),
            $relay->xinfo->stream('stream', (new XInfoStreamOptions())->full(5))
        );

        $expected = $stream->xinfo->consumers('stream', 'group');
        $actual = $relay->xinfo->consumers('stream', 'group');
        $withoutTiming = static function (array $consumers) {
            return array_map(static function (array $consumer) {
                unset($consumer['idle'], $consumer['inactive']);

                return $consumer;
            }, $consumers);
        };

        $this->assertSame($withoutTiming($expected), $withoutTiming($actual));
    }

    /**
     * @group connected
     */
    public function testClientReconnectsAfterDisconnect(): void
    {
        $client = new Client($this->getParameters(), ['connections' => 'relay']);

        $this->assertEquals('PONG', $client->ping());
        $client->disconnect();
        $this->assertFalse($client->isConnected());

        $this->assertEquals('PONG', $client->ping());
        $this->assertTrue($client->isConnected());
        $client->disconnect();
    }

    /**
     * @group connected
     */
    public function testGetResourceForcesConnection(): void
    {
        $connection = new RelayConnection($this->getParameters(), new Relay());

        $this->assertFalse($connection->isConnected());
        $connection->getResource();
        $this->assertTrue($connection->isConnected());
    }

    /**
     * @group connected
     */
    public function testExecutesCommand(): void
    {
        $parameters = $this->getParameters();
        $connection = new RelayConnection($parameters, new Relay());
        $connection->executeCommand(new RawCommand('AUTH', [$parameters->password]));

        $this->assertEquals(
            'OK',
            $connection->executeCommand(new RawCommand('SET', ['key', 'value']))
        );

        $this->assertEquals(
            'value',
            $connection->executeCommand(new RawCommand('GET', ['key']))
        );
    }

    /**
     * @group connected
     * @requiresRedisVersion >= 7.2.0
     */
    public function testConnectWithOnConnectionCommands(): void
    {
        $parameters = $this->getParameters();
        $connection = new RelayConnection($parameters, new Relay());
        $connection->addConnectCommand(new RawCommand('AUTH', [$parameters->password]));
        $connection->addConnectCommand(new RawCommand('CLIENT', ['SETNAME', 'predis']));

        $connection->connect();

        $response = $connection->executeCommand(new RawCommand('CLIENT', ['GETNAME']));
        $this->assertSame('predis', $response);
    }
}