var obniz = new Obniz("XXXXXXXX");
obniz.onconnect = async function () {

  var adv = [];
  var UUID_FOR_LINECORP = [0x6F, 0xFE];
  var deviceMessage = [01,02,10];  //サーバーに送るメッセージ　1~13byte
  var hardwareId = [0x01, 0x16, 0xcb, 0xf3, 0x79 ]; //払い出されたID（元：0116cbf379）


  // flag
  adv = adv.concat([0x02, 0x01, 0x06]);  //LE General Discoverable Mode & BR/EDR Not Supported

  //16bit uuid
  adv = adv.concat([0x03, 0x03]);
  adv = adv.concat(UUID_FOR_LINECORP);

  //simple beacon
  adv = adv.concat([1+9+deviceMessage.length, 0x16]);
  adv = adv.concat(UUID_FOR_LINECORP);
  adv = adv.concat([0x02]);
  adv = adv.concat(hardwareId);
  adv = adv.concat([0x7F]);
  adv = adv.concat(deviceMessage);


  obniz.ble.advertisement.setAdvDataRaw(adv);
  obniz.ble.advertisement.start();
}

const express = require("@runkit/runkit/express-endpoint/1.0.0");
const app = express(exports);
const line = require('@line/bot-sdk');

// create LINE SDK config from env variables
const config = {
  channelAccessToken: "",
  channelSecret: "",
};

// create LINE SDK client
const client = new line.Client(config);

// register a webhook handler with middleware
// about the middleware, please refer to doc
app.post('/',  line.middleware(config), (req, res) => {
  Promise
    .all(req.body.events.map(handleEvent))
    .then((result) => res.json(result))
    .catch((err) => {
      console.error("ERROR");
      console.error(err.message);
      res.status(500).end();
    });
});

// event handler
function handleEvent(event) {
  console.log(event);
  if (event.type === 'message' && event.message.type === 'text') {
    const echo = { type: 'text',  text: event.message.text };
    console.log(echo)
    return client.replyMessage(event.replyToken, echo);

  }else if(event.type === 'beacon' && event.beacon){
    const message = { type: 'text', text: `beacon device(${event.beacon.hwid})から${event.beacon.dm}が届いたよ` };
    console.log(message)
    return client.replyMessage(event.replyToken, message);

  }
    return Promise.resolve(null);
}