<?php

namespace app\api\logic;

use React\EventLoop\Factory;
use React\Socket\Connector;
use React\Http\Browser;
use React\Promise\Timer\Timeout;
use React\Stream\ThroughStream;
use React\WebSocket\ConnectionContext;
use React\WebSocket\WebSocketFactory;
class RealTimeASRClient
{
    /**
     * 根据所提供信息返回签名
     *
     * @param   string  $appId      appid
     * @param   string  $secretKey  secretKey
     * @param   string  $timestamp  时间戳，不传的话使用系统时间
     * @return  string
     */
    function sign_V1($appId, $secretKey, $timestamp = null){
        $timestamp = $timestamp ?: time();
        $baseString = $appId . $timestamp;
        $signa_origin = hash_hmac('sha1', md5($baseString), $secretKey, true);
        return base64_encode($signa_origin);
    }


    function req(){
        $loop = Factory::create();

        $connector = new Connector($loop);
        $browser = new Browser($connector);

        $appid = 'your_appid';
        $ts = strval(time());
        $apiKey = 'your_apiKey';

// 生成signa
        $baseString = $appid . $ts;
        $md5BaseString = md5($baseString);
        $signa = base64_encode(hash_hmac('sha1', $md5BaseString, $apiKey, true));

        $url = "ws://rtasr.xfyun.cn/v1/ws?appid={$appid}&ts={$ts}&signa={$signa}";

        $browser->request('GET', $url)
            ->then(function ($request) use ($loop) {
                $request->on('response', function ($response) use ($loop) {
                    $response->on('data', function ($chunk) {
                        echo "Received: " . $chunk . PHP_EOL;
                    });

                    $response->on('close', function () {
                        echo "Connection closed." . PHP_EOL;
                    });

                    // 创建一个通过流，用于发送音频数据
                    $stream = new ThroughStream();
                    $stream->pipe($response);

                    // 这里可以发送音频数据，假设你有一个音频文件
                    // 注意：这只是一个示例，你需要根据实际情况发送数据
                    // $audioData = file_get_contents('/path/to/audio.pcm');
                    // $stream->write($audioData);

                    // 发送结束标志
                    $stream->end(json_encode(["end" => true]));
                });
            })
            ->then(null, function ($e) {
                echo "Error: " . $e->getMessage() . PHP_EOL;
            });

        $loop->run();
    }
}