const APPID = "6a744d1b";
const APIKEY = "27d1b3d2f5d1bd93e7c94330b1675ee2";

const PARAM = {
    auth_id: "f8948af1d2d6547eaf09bc2f20ebfcc6",
    data_type: "audio",
    scene: "main_box",
    aue: "raw",
    sample_rate: "16000",
};

/**
 * 计算握手参数
 * @returns {string} WebSocket 连接参数字符串
 */
function getHandshakeParams() {
    const paramBase64 = btoa(JSON.stringify(PARAM)); // 将参数转换为 Base64
    const curTime = Math.floor(Date.now() / 1000); // 当前时间戳（秒）
    const originStr = APIKEY + curTime + paramBase64; // 拼接字符串
    const checksum = CryptoJS.MD5(originStr).toString(); // MD5 哈希计算
    return `?appid=${APPID}&checksum=${checksum}&curtime=${curTime}&param=${paramBase64}`;
}

/**
 * 将 Int16Array 转换为 Base64 编码字符串
 * @param {Int16Array} buffer PCM 数据
 * @returns {string} Base64 字符串
 */
function pcmToBase64(buffer) {
    let binary = "";
    buffer.forEach((val) => {
        binary += String.fromCharCode(val & 0xff, (val >> 8) & 0xff);
    });
    return btoa(binary);
}

/**
 * 录音 + WebSocket 发送的完整流程
 */
async function startMicrophoneStreaming() {
    const wsUtil = new WebSocketUtil(Constant.INTERACT_SOCKET_URL + getHandshakeParams());
    const audioProcessor = new WebRTCAudioProcessor();



// 启动音频处理
    audioProcessor.start((pcmData)=>{

        wsUtil.send(buildAudioPayload(transcode(pcmData),"","","cn"))
    })
        .then(() => {
            console.log('Audio processor started successfully.');
        })
        .catch((error) => {
            console.error('Failed to start audio processor:', error);
        });

    // 连接 WebSocket
    wsUtil.onOpen(() => {
        console.log("✅ WebSocket 连接成功");
        /*mic.startRecording((pcmData) =>{
            console.log("📤 发送音频数据...");
            console.log(pcmData)
        })*/

    });
    wsUtil.onMessage((event) =>{});
    wsUtil.onError((event) => console.error("❌ WebSocket 错误:", event));
    wsUtil.onClose(() => console.log("🔴 WebSocket 连接已关闭"));
    wsUtil.connect();
}

// 启动录音流媒体传输
startMicrophoneStreaming();