"use strict";

// TODO: I know, I know, don't use request...
const request = require("request");

// Wrap request with a promise to make it awaitable
function doRequest(options) {
  return new Promise(function(resolve, reject) {
    request(options, function(error, res, body) {
      if (!error && res.statusCode == 200) {
        resolve(body);
      } else {
        reject(error);
      }
    });
  });
}
async function toggleMerossPlug(url, onoff) {
  if (onoff !== "off" && onoff !== "on") {
    console.log('You must send "on" or "off" as a arg for "onoff"');
    return;
  }

  let booleanOnOff = onoff === "on" ? 1 : 0;

  let response;

  try {
    response = await doRequest({
      json: true,
      method: "POST",
      strictSSL: false,
      url: `${url}/config`,
      headers: {
        "Content-Type": "application/json"
      },
      body: {
        payload: {
          togglex: {
            onoff: booleanOnOff
          }
        },
        header: {
          messageId: "c3222c7d2b9163fe2968f06c45338a9f",
          method: "SET",
          from: `${url}/config`,
          namespace: "Appliance.Control.ToggleX",
          timestamp: 1543987687,
          // TODO probably can recycle the 'sign' from the response of this request
          // in case this gets stale and no longer works. No idea what it does.
          sign: "9cb8004faf1ea39e94256227c9fb0b19",
          payloadVersion: 1
        }
      }
    });
  } catch (e) {
    console.log("Failed to POST to the Meross Plug:", e);
  }

  if (response) {
    console.log("Set succeeded", response);
  } else {
    console.log("Set failed", response);
  }

  return response;
}

// Example usage:
// Comment these lines below out and add your plugs IP:
// (async () => {
//   await toggleMerossPlug("http://192.168.86.250", "off");
// })();