<?php

namespace NoccyLabs\React\WebSocket;

use PHPUnit\Framework\Attributes\CoversClass;

#[CoversClass(WebSocketCodec::class)]
class WebSocketCodecTest extends \PHPUnit\Framework\TestCase
{

    public function testEncodingFrames()
    {
        $codec = new WebSocketCodec();

        $msg = $codec->encode([
            'opcode'=>WebSocketConnection::OP_PING,
            'payload'=>"ping"
        ]);
        $this->assertEquals("\x89\x04ping", $msg);

        $msg = $codec->encode([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh"]);
        $this->assertEquals("\x81\x08abcdefgh", $msg);

        $msg = $codec->encode([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh",
            'masked'=>true,
            'mask'=>"\x00\x00\x00\x00"
        ]);
        $this->assertEquals("\x81\x88\x00\x00\x00\x00abcdefgh", $msg);

        $msg = $codec->encode([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh",
            'masked'=>true,
            'mask'=>"\x00\xFF\x00\xFF"
        ]);
        $this->assertEquals("\x81\x88\x00\xFF\x00\xFFa\x9dc\x9be\x99g\x97", $msg);

    }

    public function testDecodingFrames()
    {
        $codec = new WebSocketCodec();

        $msg = $codec->decode("\x89\x04ping");
        $this->assertEquals([
            'opcode'=>WebSocketConnection::OP_PING,
            'payload'=>"ping",
            'final'=>true,
            'rsv1'=>false,
            'rsv2'=>false,
            'rsv3'=>false,
            'length'=>4,
            'masked'=>false
        ], $msg);

        $msg = $codec->decode("\x81\x08abcdefgh");
        $this->assertEquals([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh",
            'final'=>true,
            'rsv1'=>false,
            'rsv2'=>false,
            'rsv3'=>false,
            'length'=>8,
            'masked'=>false
        ], $msg);

        $msg = $codec->decode("\x81\x88\x00\x00\x00\x00abcdefgh");
        $this->assertEquals([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh",
            'final'=>true,
            'rsv1'=>false,
            'rsv2'=>false,
            'rsv3'=>false,
            'length'=>8,
            'masked'=>true,
            'mask'=>"\x00\x00\x00\x00"
        ], $msg);

        $msg = $codec->decode("\x81\x88\x00\xFF\x00\xFFa\x9dc\x9be\x99g\x97");
        $this->assertEquals([
            'opcode'=>WebSocketConnection::OP_FRAME_TEXT,
            'payload'=>"abcdefgh",
            'final'=>true,
            'rsv1'=>false,
            'rsv2'=>false,
            'rsv3'=>false,
            'length'=>8,
            'masked'=>true,
            'mask'=>"\x00\xFF\x00\xFF"
        ], $msg);

    }

}