Release v3.0.0 (#85)

* updated dependencies

* code linting

* added new app id & app secret

* cleanup requests payloads

* remove unused function

* update test cases

* enabled firmware tests

* refactor getDevice to use right api endpoint

* error messages improvements

* error messages improvements

* error messages improvements

* error messages improvements

* error messages improvements

* payload cleanup

* refactor setDevicePowerState to use right api endpoint

* update test exepectation

* removed deprecated class

* updated tests to reflect new error codes

* error messages improvements

* refactoring project structure: devices methods

refactoring project sturcture

* refactoring project structure: firmware methods

* refactoring project structure: temperature/humidity

* refactoring project structure: credentials methods

* refactoring project structure: power usage methods

* refactoring project structure: power state methods

* refactoring project structure: websocket methods

* removed deprecated login method from docs

* refactoring project structure: power usage methods

* refactoring project structure: zeroconf classes

* refactoring project structure: websocket classes

* refactoring project structure: zeroconf classes

* refactor and cleanup

* refactoring project structure: firmware methods

* moved parsers to own directory

* update tests with methods renames

* export missing temperature/humidity methods

* removed unused package

* refactor and cleanup

* fix test expectation

* refactoring project structure: moved data files

* refactoring project structure: moved data files

* refactoring project structure: moved helpers files

* refactoring project structure: moved helpers files

* refactoring project structure: moved payload files

* refactor and cleanup

* refactor getDevicePowerState

* setDevicePowerState returns channel

* convert error 400 to 404 for clarity

* updated test cases

* remove console.log

* cache path for zeroconf cache files

* installed nock

* using nock to simulate server requests during testing

* moved credentials file to config folder

* update request url when using nock

* refactor nock helper file

* move cooldown delay to setupTests file

* updating testing instructions

* restored delete code block

* fix wrong error code

* accept phone number to login to ewelink

* added test cases for initialize main class

* improvements on class initialization parameters

* allow login using phone number

* rename test file

* updated test case

* fixed regression bug

* Release v3.0.0 - use node-fetch (#87)

* replaced deprecated request library with node-fetch

* refactor: moved makeRequest to own mixin file

* refactor to use node-fetch

* fixes

* update config

* created helper method

* constant rename

* ignore files from final package

* version bump

.npmignore

@@ -0,0 +1,9 @@
+.idea/
+.vscode/
+docs/
+test/
+.editorconfig
+.eslintrc
+arp-table.json
+demo.js
+devices-cache.json

classes/PowerState/ChangeState.js

@@ -1,30 +0,0 @@
-const WebSocket = require('../WebSocket');
-const payloads = require('../../lib/payloads');
-const { _get } = require('../../lib/helpers');
-
-class ChangeState extends WebSocket {
-  static async set({ apiUrl, at, apiKey, deviceId, params, state }) {
-    const payloadLogin = payloads.wssLoginPayload({ at, apiKey });
-
-    const payloadUpdate = payloads.wssUpdatePayload({
-      apiKey,
-      deviceId,
-      params,
-    });
-
-    const response = await this.WebSocketRequest(apiUrl, [
-      payloadLogin,
-      payloadUpdate,
-    ]);
-
-    const error = _get(response[1], 'error', false);
-
-    if (error === 403) {
-      return { error, msg: response[1].reason };
-    }
-
-    return { status: 'ok', state };
-  }
-}
-
-module.exports = ChangeState;

classes/PowerState/index.js

@@ -1,7 +0,0 @@
-const ChangeState = require('./ChangeState');
-const ChangeStateZeroconf = require('./ChangeStateZeroconf');
-
-module.exports = {
-  ChangeState,
-  ChangeStateZeroconf,
-};

classes/PowerUsage/CurrentMonth.js

@@ -1,40 +0,0 @@
-class CurrentMonth {
-  /**
-   * Return daily power usage
-   *
-   * @param hundredDaysKwhData
-   *
-   * @returns {{daily: *, monthly: *}}
-   */
-  static parse({ hundredDaysKwhData }) {
-    const today = new Date();
-    const days = today.getDate();
-
-    let monthlyUsage = 0;
-    const dailyUsage = [];
-
-    for (let day = 0; day < days; day += 1) {
-      const s = hundredDaysKwhData.substr(6 * day, 2);
-      const c = hundredDaysKwhData.substr(6 * day + 2, 2);
-      const f = hundredDaysKwhData.substr(6 * day + 4, 2);
-      const h = parseInt(s, 16);
-      const y = parseInt(c, 16);
-      const I = parseInt(f, 16);
-      const E = parseFloat(`${h}.${y}${I}`);
-
-      dailyUsage.push({
-        day: days - day,
-        usage: E,
-      });
-
-      monthlyUsage += E;
-    }
-
-    return {
-      monthly: monthlyUsage,
-      daily: dailyUsage,
-    };
-  }
-}
-
-module.exports = CurrentMonth;

classes/PowerUsage/index.js

@@ -1,7 +0,0 @@
-const DeviceRaw = require('./DeviceRaw');
-const CurrentMonth = require('./CurrentMonth');
-
-module.exports = {
-  DeviceRaw,
-  CurrentMonth,
-};

docs/README.md

@@ -22,6 +22,5 @@
   * [getRegion](available-methods/getregion.md)
   * [getFirmwareVersion](available-methods/getfirmwareversion.md)
   * [saveDevicesCache](available-methods/savedevicescache.md)
-  * [login](available-methods/login.md) <sup>_*deprecated_</sup>
 * [Zeroconf (LAN mode)](zeroconf.md)
 * [Testing](testing.md)

docs/available-methods/README.md

@@ -17,7 +17,6 @@ Here is the list of available methods.
 * [getRegion](getregion.md)
 * [getFirmwareVersion](getfirmwareversion.md)
 * [saveDevicesCache](savedevicescache.md)
-* [login](login.md) <sup>_*deprecated_</sup>
 
 Remember to instantiate class before usage.
 

docs/available-methods/getdevicepowerstate.md

@@ -22,6 +22,7 @@ Query for specified device power status.
 ```js
   {
     status: 'ok',
-    state: 'off'
+    state: 'off',
+    channel: 1
   }
 ```

docs/available-methods/login.md

@@ -1,20 +0,0 @@
-# Login
-
-> DEPRECATED: use [getCredentials](available-methods/getcredentials.md) method instead
-
-Login into eWeLink API and get auth credentials.
-
-This method is useful on serverless context, where you need to obtain auth credentials to make individual requests.
-
-
-### Usage
-```
-  const auth = await connection.login();
-
-  console.log('access token: ', auth.at);
-  console.log('api key: ', auth.user.apikey);
-  console.log('region: ', auth.region);
-
-```
-
-<sup>* _Remember to instantiate class before use_</sup>

docs/available-methods/openwebsocket.md

@@ -19,7 +19,7 @@ const connection = new ewelink({
 });
 
 // login into eWeLink
-await connection.login();
+await connection.getCredentials();
 
 // call openWebSocket method with a callback as argument
 const socket = await connection.openWebSocket(async data => {

docs/available-methods/setdevicepowerstate.md

@@ -24,6 +24,7 @@ Possible states: `on`, `off`, `toggle`.
 ```js
   {
     status: 'ok',
-    state: 'on'
+    state: 'on',
+    channel: 1
   }
 ```

docs/class-instantiation.md

@@ -11,6 +11,15 @@
   });
 ```
 
+**_Using phone number and password_**
+```
+  const connection = new ewelink({
+    phoneNumber: '<your phone number>',
+    password: '<your ewelink password>',
+    region: '<your ewelink region>',
+  });
+```
+
 **_Using access token and api key_**
 ```
   const connection = new ewelink({
@@ -20,5 +29,8 @@
   });
 ```
 
+**_Using devices and arp table cache files_**
+Check [ZeroConf](zeroconf.md) docs for detailed information.
+
 > * If you don't know your region, use [getRegion](available-methods/getregion) method
 > * To get your access token and api key, use [getCredentials](available-methods/getcredentials) method

docs/demos/serverless.md

@@ -17,11 +17,11 @@ So, instead of using email and password on every api call, you can login the fir
     region: '<your ewelink region>',
   });
 
-  const login = await connection.login();
+  const credentials = await connection.getCredentials();
 
-  const accessToken = login.at;
+  const accessToken = credentials.at;
-  const apiKey = login.user.apikey
+  const apiKey = credentials.user.apikey
-  const region = login.region;
+  const region = credentials.region;
 
 })();
 ```

docs/testing.md

@@ -1,8 +1,26 @@
 # Testing
 
-Open `test/_setup/credentials.json` and update parameters.
+## Run test suite
+Copy `test/_setup/config/credentials.example.js` to `test/_setup/config/credentials.js` and update parameters with yours.
 
 In a terminal, `npm run test` or `npm run coverage`.
 
+Tests needs to be performed serially to prevent flooding eWeLink servers, so if run jest manually, add `--runInBand` parameter.
 
-> tests needs to be performed serially, so if run jest manually, add `--runInBand` parameter.
+> All devices needs to be connected before running test suite.
+
+
+## Using nock
+Running tests can take some time because there is many requests to eWeLink servers.
+
+To speedup this process, you need to enable nock "record & play" feature by opening `test/_setup/setupTests.js` and change `nockAction` to `record` or `play`.
+
+The first time you need to record all your requests then you can keep testing by "playing" recorded data.
+
+Recorded data will be stored on `test/_setup/tapes` and you can delete folder content anytime.
+
+Set `nockAction` to `false` to disable all nock functionality.
+
+
+## ZeroConf cache
+While testing ZeroConf functionalty, two temporary files will be created: `test/_setup/cache/arp-table.json` and `test/_setup/cache devices-cache.json`. These files can be safely deleted once tests finished.

docs/zeroconf.md

@@ -35,7 +35,7 @@ A file named `devices-cache.json` will be created.
 ## 2. Generate arp table cache file
 
 ```js
-const Zeroconf = require('ewelink-api/classes/Zeroconf');
+const Zeroconf = require('ewelink-api/src/classes/Zeroconf');
 
 await Zeroconf.saveArpTable({
   ip: '<your network addres, ex: 192.168.5.1>'
@@ -49,7 +49,7 @@ A file named `arp-table.json` will be created.
 
 ```js
 const ewelink = require('ewelink-api');
-const Zeroconf = require('ewelink-api/classes/Zeroconf');
+const Zeroconf = require('ewelink-api/src/classes/Zeroconf');
 
 /* load cache files */
 const devicesCache = await Zeroconf.loadCachedDevices();

lib/helpers.js

@@ -1,10 +0,0 @@
-const _get = (obj, path, defaultValue = null) =>
-  String.prototype.split
-    .call(path, /[,[\].]+?/)
-    .filter(Boolean)
-    .reduce(
-      (a, c) => (Object.hasOwnProperty.call(a, c) ? a[c] : defaultValue),
-      obj
-    );
-
-module.exports = { _get };

lib/payloads/credentialsPayload.js

@@ -1,19 +0,0 @@
-const nonce = require('nonce')();
-
-const { makeFakeIMEI } = require('../ewelink-helper');
-
-const credentialsPayload = ({ email, password }) => ({
-  email,
-  password,
-  version: 6,
-  ts: `${Math.round(new Date().getTime() / 1000)}`,
-  nonce: `${nonce()}`,
-  appid: 'YzfeftUVcZ6twZw1OoVKPRFYTrGEg01Q',
-  imei: makeFakeIMEI(),
-  os: 'iOS',
-  model: 'iPhone10,6',
-  romVersion: '11.1.2',
-  appVersion: '3.5.3',
-});
-
-module.exports = credentialsPayload;

lib/payloads/index.js

@@ -1,13 +0,0 @@
-const firmwareUpdate = require('./firmwareUpdate');
-const credentialsPayload = require('./credentialsPayload');
-const wssLoginPayload = require('./wssLoginPayload');
-const wssUpdatePayload = require('./wssUpdatePayload');
-const zeroConfUpdatePayload = require('./zeroConfUpdatePayload');
-
-module.exports = {
-  firmwareUpdate,
-  credentialsPayload,
-  wssLoginPayload,
-  wssUpdatePayload,
-  zeroConfUpdatePayload,
-};

lib/payloads/wssLoginPayload.js

@@ -1,24 +0,0 @@
-const nonce = require('nonce')();
-
-const wssLoginPayload = ({ at, apiKey }) => {
-  const timeStamp = new Date() / 1000;
-  const ts = Math.floor(timeStamp);
-  const sequence = Math.floor(timeStamp * 1000);
-  const payload = {
-    action: 'userOnline',
-    userAgent: 'app',
-    version: 6,
-    nonce: `${nonce()}`,
-    apkVesrion: '1.8',
-    os: 'ios',
-    at,
-    apikey: apiKey,
-    ts: `${ts}`,
-    model: 'iPhone10,6',
-    romVersion: '11.1.2',
-    sequence,
-  };
-  return JSON.stringify(payload);
-};
-
-module.exports = wssLoginPayload;

main.js

@@ -1,22 +1,34 @@
-const rp = require('request-promise');
+const mixins = require('./src/mixins');
-
+const errors = require('./src/data/errors');
-const { _get } = require('./lib/helpers');
 
 class eWeLink {
   constructor({
     region = 'us',
-    email,
+    email = null,
-    password,
+    phoneNumber = null,
-    at,
+    password = null,
-    apiKey,
+    at = null,
-    devicesCache,
+    apiKey = null,
-    arpTable,
+    devicesCache = null,
+    arpTable = null,
   }) {
-    if (!devicesCache && !arpTable && !at && (!email && !password)) {
+    const check = this.checkLoginParameters({
-      return { error: 'No credentials provided' };
+      region,
+      email,
+      phoneNumber,
+      password,
+      at,
+      apiKey,
+      devicesCache,
+      arpTable,
+    });
+
+    if (check === false) {
+      throw new Error(errors.invalidCredentials);
     }
 
     this.region = region;
+    this.phoneNumber = phoneNumber;
     this.email = email;
     this.password = password;
     this.at = at;
@@ -25,6 +37,26 @@ class eWeLink {
     this.arpTable = arpTable;
   }
 
+  // eslint-disable-next-line class-methods-use-this
+  checkLoginParameters(params) {
+    const { email, phoneNumber, password, devicesCache, arpTable, at } = params;
+
+    if (email !== null && phoneNumber !== null) {
+      return false;
+    }
+
+    if (
+      (email !== null && password !== null) ||
+      (phoneNumber !== null && password !== null) ||
+      (devicesCache !== null && arpTable !== null) ||
+      at !== null
+    ) {
+      return true;
+    }
+
+    return false;
+  }
+
   /**
    * Generate eWeLink API URL
    *
@@ -57,116 +89,11 @@ class eWeLink {
    * @returns {string}
    */
   getZeroconfUrl(device) {
-    const ip = this.getLocalIp(device);
+    const ip = this.getDeviceIP(device);
     return `http://${ip}:8081/zeroconf`;
   }
-
-  /**
-   * Generate http requests helpers
-   *
-   * @param method
-   * @param url
-   * @param uri
-   * @param body
-   * @param qs
-   *
-   * @returns {Promise<{msg: string, error: *}>}
-   */
-  async makeRequest({ method = 'GET', url, uri, body = {}, qs = {} }) {
-    const { at } = this;
-
-    if (!at) {
-      await this.getCredentials();
-    }
-
-    let apiUrl = this.getApiUrl();
-
-    if (url) {
-      apiUrl = url;
-    }
-
-    const response = await rp({
-      method,
-      uri: `${apiUrl}${uri}`,
-      headers: { Authorization: `Bearer ${this.at}` },
-      body,
-      qs,
-      json: true,
-    });
-
-    const error = _get(response, 'error', false);
-    if (error && [401, 402].indexOf(parseInt(error)) !== -1) {
-      return { error, msg: 'Authentication error' };
-    }
-
-    return response;
-  }
 }
 
-/* LOAD MIXINS: user */
+Object.assign(eWeLink.prototype, mixins);
-const getCredentialsMixin = require('./mixins/user/getCredentialsMixin');
-const getRegionMixin = require('./mixins/user/getRegionMixin');
-
-/* LOAD MIXINS: power state */
-const getDevicePowerStateMixin = require('./mixins/powerState/getDevicePowerStateMixin');
-const setDevicePowerState = require('./mixins/powerState/setDevicePowerStateMixin');
-const toggleDeviceMixin = require('./mixins/powerState/toggleDeviceMixin');
-
-/* LOAD MIXINS: power usage */
-const getDevicePowerUsageMixin = require('./mixins/powerUsage/getDevicePowerUsageMixin');
-const getDeviceRawPowerUsageMixin = require('./mixins/powerUsage/getDeviceRawPowerUsageMixin');
-
-/* LOAD MIXINS: temperature & humidity */
-const getTHMixin = require('./mixins/temphumd/getTHMixin');
-
-/* LOAD MIXINS: devices */
-const getDevicesMixin = require('./mixins/devices/getDevicesMixin');
-const getDeviceMixin = require('./mixins/devices/getDeviceMixin');
-const getDeviceChannelCountMixin = require('./mixins/devices/getDeviceChannelCountMixin');
-const getLocalIpMixin = require('./mixins/devices/getLocalIpMixin');
-const saveDevicesCacheMixin = require('./mixins/devices/saveDevicesCacheMixin');
-
-/* LOAD MIXINS: firmware */
-const getFirmwareVersionMixin = require('./mixins/firmware/getFirmwareVersionMixin');
-const checkDeviceUpdateMixin = require('./mixins/firmware/checkDeviceUpdateMixin');
-const checkDevicesUpdatesMixin = require('./mixins/firmware/checkDevicesUpdatesMixin');
-
-/* LOAD MIXINS: websocket */
-const openWebSocketMixin = require('./mixins/websocket/openWebSocketMixin');
-
-Object.assign(eWeLink.prototype, getCredentialsMixin, getRegionMixin);
-
-Object.assign(
-  eWeLink.prototype,
-  getDevicePowerStateMixin,
-  setDevicePowerState,
-  toggleDeviceMixin
-);
-
-Object.assign(
-  eWeLink.prototype,
-  getDevicePowerUsageMixin,
-  getDeviceRawPowerUsageMixin
-);
-
-Object.assign(eWeLink.prototype, getTHMixin);
-
-Object.assign(
-  eWeLink.prototype,
-  getDevicesMixin,
-  getDeviceMixin,
-  getDeviceChannelCountMixin,
-  getLocalIpMixin,
-  saveDevicesCacheMixin
-);
-
-Object.assign(
-  eWeLink.prototype,
-  getFirmwareVersionMixin,
-  checkDeviceUpdateMixin,
-  checkDevicesUpdatesMixin
-);
-
-Object.assign(eWeLink.prototype, openWebSocketMixin);
 
 module.exports = eWeLink;

mixins/devices/getDeviceMixin.js

@@ -1,38 +0,0 @@
-const { _get } = require('../../lib/helpers');
-
-const getDeviceMixin = {
-  /**
-   * Get information about all associated devices to account
-   *
-   * @param deviceId
-   *
-   * @returns {Promise<{msg: string, error: *}>}
-   */
-  async getDevice(deviceId) {
-    if (this.devicesCache) {
-      return this.devicesCache.find(dev => dev.deviceid === deviceId) || null;
-    }
-
-    const devices = await this.getDevices();
-
-    const error = _get(devices, 'error', false);
-
-    if (error === 406) {
-      return { error: 401, msg: 'Authentication error' };
-    }
-
-    if (error || !devices) {
-      return devices;
-    }
-
-    const device = devices.find(dev => dev.deviceid === deviceId);
-
-    if (!device) {
-      return { error: 500, msg: 'Device does not exist' };
-    }
-
-    return device;
-  },
-};
-
-module.exports = getDeviceMixin;

mixins/devices/getDevicesMixin.js

@@ -1,45 +0,0 @@
-const { makeFakeIMEI } = require('../../lib/ewelink-helper');
-const { _get } = require('../../lib/helpers');
-
-const getDevicesMixin = {
-  /**
-   * Get all devices information
-   *
-   * @returns {Promise<{msg: string, error: number}|*>}
-   */
-  async getDevices() {
-    const timeStamp = new Date() / 1000;
-    const ts = Math.floor(timeStamp);
-
-    const response = await this.makeRequest({
-      uri: '/user/device',
-      qs: {
-        lang: 'en',
-        getTags: 1,
-        version: 6,
-        ts,
-        appid: 'YzfeftUVcZ6twZw1OoVKPRFYTrGEg01Q',
-        imei: makeFakeIMEI(),
-        os: 'android',
-        model: '',
-        romVersion: '',
-        appVersion: '3.12.0',
-      },
-    });
-
-    const error = _get(response, 'error', false);
-    const devicelist = _get(response, 'devicelist', false);
-
-    if (error === 406) {
-      return { error: 401, msg: 'Authentication error' };
-    }
-
-    if (!devicelist) {
-      return { error: 500, msg: 'No devices found' };
-    }
-
-    return devicelist;
-  },
-};
-
-module.exports = getDevicesMixin;

mixins/powerState/getDevicePowerStateMixin.js

@@ -1,43 +0,0 @@
-const { _get } = require('../../lib/helpers');
-
-const { getDeviceChannelCount } = require('../../lib/ewelink-helper');
-
-const getDevicePowerStateMixin = {
-  /**
-   * Get current power state for a specific device
-   *
-   * @param deviceId
-   * @param channel
-   *
-   * @returns {Promise<{state: *, status: string}|{msg: string, error: *}>}
-   */
-  async getDevicePowerState(deviceId, channel = 1) {
-    const device = await this.getDevice(deviceId);
-    const error = _get(device, 'error', false);
-    const uiid = _get(device, 'extra.extra.uiid', false);
-
-    let state = _get(device, 'params.switch', false);
-    const switches = _get(device, 'params.switches', false);
-
-    const switchesAmount = getDeviceChannelCount(uiid);
-
-    if (switchesAmount > 0 && switchesAmount < channel) {
-      return { error, msg: 'Device channel does not exist' };
-    }
-
-    if (error || (!state && !switches)) {
-      if (error && parseInt(error) === 401) {
-        return device;
-      }
-      return { error, msg: 'Device does not exist' };
-    }
-
-    if (switches) {
-      state = switches[channel - 1].switch;
-    }
-
-    return { status: 'ok', state };
-  },
-};
-
-module.exports = getDevicePowerStateMixin;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ewelink-api",
-  "version": "2.0.1",
+  "version": "3.0.0",
   "description": "eWeLink API for Node.js",
   "author": "Martín M.",
   "license": "MIT",
@@ -27,6 +27,9 @@
     "lint:fix": "eslint . --fix"
   },
   "jest": {
+    "setupFilesAfterEnv": [
+      "<rootDir>/test/_setup/setupTests.js"
+    ],
     "testPathIgnorePatterns": [
       "/node_modules/",
       ".cache"
@@ -38,28 +41,27 @@
   },
   "dependencies": {
     "arpping": "github:skydiver/arpping",
-    "crypto-js": "^3.1.9-1",
+    "crypto-js": "^4.0.0",
     "delay": "^4.3.0",
-    "nonce": "^1.0.4",
+    "node-fetch": "^2.6.0",
-    "random": "^2.1.1",
+    "random": "^2.2.0",
-    "request": "^2.88.0",
+    "websocket": "^1.0.31",
-    "request-promise": "^4.2.4",
+    "websocket-as-promised": "^1.0.1"
-    "websocket": "^1.0.30",
-    "websocket-as-promised": "^0.10.1"
   },
   "devDependencies": {
-    "babel-eslint": "^10.0.3",
+    "babel-eslint": "^10.1.0",
-    "eslint": "^6.4.0",
+    "eslint": "^7.0.0",
-    "eslint-config-airbnb": "^18.0.1",
+    "eslint-config-airbnb": "^18.1.0",
-    "eslint-config-prettier": "^6.3.0",
+    "eslint-config-prettier": "^6.11.0",
     "eslint-config-wesbos": "0.0.19",
-    "eslint-plugin-html": "^6.0.0",
+    "eslint-plugin-html": "^6.0.2",
-    "eslint-plugin-import": "^2.18.2",
+    "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-jsx-a11y": "^6.2.3",
-    "eslint-plugin-prettier": "^3.1.0",
+    "eslint-plugin-prettier": "^3.1.3",
-    "eslint-plugin-react": "^7.14.3",
+    "eslint-plugin-react": "^7.20.0",
-    "eslint-plugin-react-hooks": "^2.0.1",
+    "eslint-plugin-react-hooks": "^4.0.2",
-    "jest": "^24.9.0",
+    "jest": "^26.0.1",
-    "prettier": "^1.18.2"
+    "nock": "^12.0.3",
+    "prettier": "^1.19.1"
   }
 }

src/classes/ChangeStateZeroconf.js

@@ -1,8 +1,8 @@
-const rp = require('request-promise');
+const fetch = require('node-fetch');
 
-const WebSocket = require('../WebSocket');
+const WebSocket = require('./WebSocket');
-const payloads = require('../../lib/payloads');
+const zeroConfUpdatePayload = require('../payloads/zeroConfUpdatePayload');
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
 
 class ChangeStateZeroconf extends WebSocket {
   static async set({ url, device, params, switches, state }) {
@@ -11,22 +11,16 @@ class ChangeStateZeroconf extends WebSocket {
     const deviceKey = device.devicekey;
 
     const endpoint = switches ? 'switches' : 'switch';
-    const localUrl = `${url}/${endpoint}`;
 
-    const body = payloads.zeroConfUpdatePayload(
+    const body = zeroConfUpdatePayload(selfApikey, deviceId, deviceKey, params);
-      selfApikey,
-      deviceId,
-      deviceKey,
-      params
-    );
 
-    const response = await rp({
+    const request = await fetch(`${url}/${endpoint}`, {
-      method: 'POST',
+      method: 'post',
-      uri: localUrl,
+      body: JSON.stringify(body),
-      body,
-      json: true,
     });
 
+    const response = await request.json();
+
     const error = _get(response, 'error', false);
 
     if (error === 403) {

src/classes/DevicePowerUsageRaw.js

@@ -1,8 +1,10 @@
-const WebSocket = require('../WebSocket');
+const WebSocket = require('./WebSocket');
-const payloads = require('../../lib/payloads');
+const wssLoginPayload = require('../payloads/wssLoginPayload');
-const { _get } = require('../../lib/helpers');
+const wssUpdatePayload = require('../payloads/wssUpdatePayload');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-class DeviceRaw extends WebSocket {
+class DevicePowerUsageRaw extends WebSocket {
   /**
    * Get specific device power usage (raw data)
    *
@@ -10,13 +12,12 @@ class DeviceRaw extends WebSocket {
    * @param at
    * @param apiKey
    * @param deviceId
-   *
+   * @returns {Promise<{error: string}|{data: {hundredDaysKwhData: *}, status: string}|{msg: any, error: *}|{msg: string, error: number}>}
-   * @returns {Promise<{error: string}|{data: {hundredDaysKwhData: *}, status: string}>}
    */
   static async get({ apiUrl, at, apiKey, deviceId }) {
-    const payloadLogin = payloads.wssLoginPayload({ at, apiKey });
+    const payloadLogin = wssLoginPayload({ at, apiKey });
 
-    const payloadUpdate = payloads.wssUpdatePayload({
+    const payloadUpdate = wssUpdatePayload({
       apiKey,
       deviceId,
       params: { hundredDaysKwh: 'get' },
@@ -27,6 +28,10 @@ class DeviceRaw extends WebSocket {
       payloadUpdate,
     ]);
 
+    if (response.length === 1) {
+      return { error: errors.noPower };
+    }
+
     const error = _get(response[1], 'error', false);
 
     if (error === 403) {
@@ -40,7 +45,7 @@ class DeviceRaw extends WebSocket {
     );
 
     if (!hundredDaysKwhData) {
-      return { error: 'No power usage data found.' };
+      return { error: errors.noPower };
     }
 
     return {
@@ -50,4 +55,4 @@ class DeviceRaw extends WebSocket {
   }
 }
 
-module.exports = DeviceRaw;
+module.exports = DevicePowerUsageRaw;

src/classes/WebSocket.js

@@ -2,6 +2,8 @@ const W3CWebSocket = require('websocket').w3cwebsocket;
 const WebSocketAsPromised = require('websocket-as-promised');
 const delay = require('delay');
 
+const errors = require('../data/errors');
+
 class WebSocket {
   /**
    * Open WebSocket connection and send provided payloads
@@ -46,9 +48,9 @@ class WebSocket {
   static customThrowError(e) {
     const loginError = e.message.indexOf('WebSocket is not opened');
     if (loginError > -1) {
-      return { error: 401, msg: 'Authentication error' };
+      return { error: 406, msg: errors['406'] };
     }
-    return { error: 'An unknown error occurred' };
+    return { error: errors.unknown };
   }
 }
 

src/data/constants.js

@@ -0,0 +1,7 @@
+const APP_ID = 'YzfeftUVcZ6twZw1OoVKPRFYTrGEg01Q';
+const APP_SECRET = '4G91qSoboqYO4Y0XJ0LPPKIsq8reHdfa';
+
+module.exports = {
+  APP_ID,
+  APP_SECRET,
+};

src/data/errors.js

@@ -0,0 +1,21 @@
+const errors = {
+  400: 'Parameter error',
+  401: 'Wrong account or password',
+  402: 'Email inactivated',
+  403: 'Forbidden',
+  404: 'Device does not exist',
+  406: 'Authentication failed',
+};
+
+const customErrors = {
+  ch404: 'Device channel does not exist',
+  unknown: 'An unknown error occurred',
+  noDevices: 'No devices found',
+  noPower: 'No power usage data found',
+  noSensor: "Can't read sensor data from device",
+  noFirmware: "Can't get model or firmware version",
+  invalidAuth: 'Library needs to be initialized using email and password',
+  invalidCredentials: 'Invalid credentials provided',
+};
+
+module.exports = Object.assign(errors, customErrors);

src/helpers/ewelink.js

@@ -2,18 +2,14 @@ const crypto = require('crypto');
 const CryptoJS = require('crypto-js');
 const random = require('random');
 
-const DEVICE_TYPE_UUID = require('./data/devices-type-uuid');
+const { APP_SECRET } = require('../data/constants');
-const DEVICE_CHANNEL_LENGTH = require('./data/devices-channel-length');
 
-const makeFakeIMEI = () => {
+const DEVICE_TYPE_UUID = require('../data/devices-type-uuid.json');
-  const num1 = random.int(1000, 9999);
+const DEVICE_CHANNEL_LENGTH = require('../data/devices-channel-length.json');
-  const num2 = random.int(1000, 9999);
-  return `DF7425A0-${num1}-${num2}-9F5E-3BC9179E48FB`;
-};
 
 const makeAuthorizationSign = body =>
   crypto
-    .createHmac('sha256', '4G91qSoboqYO4Y0XJ0LPPKIsq8reHdfa')
+    .createHmac('sha256', APP_SECRET)
     .update(JSON.stringify(body))
     .digest('base64');
 
@@ -68,7 +64,6 @@ const decryptionData = (data, key, iv) => {
 
 module.exports = {
   makeAuthorizationSign,
-  makeFakeIMEI,
   getDeviceChannelCount,
   encryptationData,
   decryptionData,

src/helpers/utilities.js

@@ -0,0 +1,29 @@
+const nonce = Math.random()
+  .toString(36)
+  .slice(5);
+
+const timestamp = Math.floor(new Date() / 1000);
+
+const _get = (obj, path, defaultValue = null) =>
+  String.prototype.split
+    .call(path, /[,[\].]+?/)
+    .filter(Boolean)
+    .reduce(
+      (a, c) => (Object.hasOwnProperty.call(a, c) ? a[c] : defaultValue),
+      obj
+    );
+
+const _empty = obj => Object.entries(obj).length === 0;
+
+const toQueryString = object =>
+  `?${Object.keys(object)
+    .map(key => `${key}=${object[key].toString()}`)
+    .join('&')}`;
+
+module.exports = {
+  nonce,
+  timestamp,
+  _get,
+  _empty,
+  toQueryString,
+};

src/mixins/checkDeviceUpdate.js

@@ -1,7 +1,7 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
-const payloads = require('../../lib/payloads');
+const parseFirmwareUpdates = require('../parsers/parseFirmwareUpdates');
 
-const checkDeviceUpdateMixin = {
+module.exports = {
   /**
    * Check device firmware update
    *
@@ -18,7 +18,7 @@ const checkDeviceUpdateMixin = {
       return device;
     }
 
-    const deviceInfoList = payloads.firmwareUpdate([device]);
+    const deviceInfoList = parseFirmwareUpdates([device]);
 
     const deviceInfoListError = _get(deviceInfoList, 'error', false);
 
@@ -27,7 +27,7 @@ const checkDeviceUpdateMixin = {
     }
 
     const update = await this.makeRequest({
-      method: 'POST',
+      method: 'post',
       url: this.getOtaUrl(),
       uri: '/app',
       body: { deviceInfoList },
@@ -46,5 +46,3 @@ const checkDeviceUpdateMixin = {
     };
   },
 };
-
-module.exports = checkDeviceUpdateMixin;

src/mixins/checkDevicesUpdates.js

@@ -1,7 +1,7 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
-const payloads = require('../../lib/payloads');
+const parseFirmwareUpdates = require('../parsers/parseFirmwareUpdates');
 
-const checkDevicesUpdatesMixin = {
+module.exports = {
   async checkDevicesUpdates() {
     const devices = await this.getDevices();
 
@@ -11,7 +11,7 @@ const checkDevicesUpdatesMixin = {
       return devices;
     }
 
-    const deviceInfoList = payloads.firmwareUpdate(devices);
+    const deviceInfoList = parseFirmwareUpdates(devices);
 
     const deviceInfoListError = _get(deviceInfoList, 'error', false);
 
@@ -20,7 +20,7 @@ const checkDevicesUpdatesMixin = {
     }
 
     const updates = await this.makeRequest({
-      method: 'POST',
+      method: 'post',
       url: this.getOtaUrl(),
       uri: '/app',
       body: { deviceInfoList },
@@ -52,5 +52,3 @@ const checkDevicesUpdatesMixin = {
     });
   },
 };
-
-module.exports = checkDevicesUpdatesMixin;

src/mixins/getCredentials.js

@@ -1,10 +1,11 @@
-const rp = require('request-promise');
+const fetch = require('node-fetch');
 
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
-const { credentialsPayload } = require('../../lib/payloads');
+const credentialsPayload = require('../payloads/credentialsPayload');
-const { makeAuthorizationSign } = require('../../lib/ewelink-helper');
+const { makeAuthorizationSign } = require('../helpers/ewelink');
+const errors = require('../data/errors');
 
-const getCredentialsMixin = {
+module.exports = {
   /**
    * Returns user credentials information
    *
@@ -13,22 +14,23 @@ const getCredentialsMixin = {
   async getCredentials() {
     const body = credentialsPayload({
       email: this.email,
+      phoneNumber: this.phoneNumber,
       password: this.password,
     });
 
-    let response = await rp({
+    const request = await fetch(`${this.getApiUrl()}/user/login`, {
-      method: 'POST',
+      method: 'post',
-      uri: `${this.getApiUrl()}/user/login`,
       headers: { Authorization: `Sign ${makeAuthorizationSign(body)}` },
-      body,
+      body: JSON.stringify(body),
-      json: true,
     });
 
+    let response = await request.json();
+
     const error = _get(response, 'error', false);
     const region = _get(response, 'region', false);
 
     if (error && [400, 401, 404].indexOf(parseInt(error)) !== -1) {
-      return { error, msg: 'Authentication error' };
+      return { error: 406, msg: errors['406'] };
     }
 
     if (error && parseInt(error) === 301 && region) {
@@ -45,5 +47,3 @@ const getCredentialsMixin = {
     return response;
   },
 };
-
-module.exports = getCredentialsMixin;

src/mixins/getDevice.js

@@ -0,0 +1,36 @@
+const { APP_ID } = require('../data/constants');
+const { nonce, timestamp, _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
+
+module.exports = {
+  /**
+   * Get information for a specific device
+   *
+   * @param deviceId
+   * @returns {Promise<*|null|{msg: string, error: *}>}
+   */
+  async getDevice(deviceId) {
+    if (this.devicesCache) {
+      return this.devicesCache.find(dev => dev.deviceid === deviceId) || null;
+    }
+
+    const device = await this.makeRequest({
+      uri: `/user/device/${deviceId}`,
+      qs: {
+        deviceid: deviceId,
+        appid: APP_ID,
+        nonce,
+        ts: timestamp,
+        version: 8,
+      },
+    });
+
+    const error = _get(device, 'error', false);
+
+    if (error) {
+      return { error, msg: errors[error] };
+    }
+
+    return device;
+  },
+};

src/mixins/getDeviceChannelCount.js

@@ -1,8 +1,9 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const { getDeviceChannelCount } = require('../../lib/ewelink-helper');
+const { getDeviceChannelCount } = require('../helpers/ewelink');
 
-const getDeviceChannelCountMixin = {
+module.exports = {
   /**
    * Get device channel count
    *
@@ -17,14 +18,9 @@ const getDeviceChannelCountMixin = {
     const switchesAmount = getDeviceChannelCount(uiid);
 
     if (error) {
-      if (error === 401) {
+      return { error, msg: errors[error] };
-        return device;
-      }
-      return { error, msg: 'Device does not exist' };
     }
 
     return { status: 'ok', switchesAmount };
   },
 };
-
-module.exports = getDeviceChannelCountMixin;

src/mixins/getDeviceCurrentTH.js

@@ -1,6 +1,7 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const getTHMixin = {
+module.exports = {
   /**
    * Get device current temperature & humidity
    * @param deviceId
@@ -18,7 +19,7 @@ const getTHMixin = {
     }
 
     if (!temperature || !humidity) {
-      return { error: 500, msg: "Can't read sensor data from device" };
+      return { error: 404, msg: errors.noSensor };
     }
 
     const data = { status: 'ok', temperature, humidity };
@@ -52,5 +53,3 @@ const getTHMixin = {
     return this.getDeviceCurrentTH(deviceId, 'humd');
   },
 };
-
-module.exports = getTHMixin;

src/mixins/getDeviceIP.js

@@ -1,11 +1,11 @@
-const getLocalIpMixin = {
+module.exports = {
   /**
    * Get local IP address from a given MAC
    *
    * @param device
    * @returns {Promise<string>}
    */
-  getLocalIp(device) {
+  getDeviceIP(device) {
     const mac = device.extra.extra.staMac;
     const arpItem = this.arpTable.find(
       item => item.mac.toLowerCase() === mac.toLowerCase()
@@ -13,5 +13,3 @@ const getLocalIpMixin = {
     return arpItem.ip;
   },
 };
-
-module.exports = getLocalIpMixin;

src/mixins/getDevicePowerState.js

@@ -0,0 +1,43 @@
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
+
+const deviceStatusPayload = require('../payloads/deviceStatus');
+
+module.exports = {
+  /**
+   * Get current power state for a specific device
+   *
+   * @param deviceId
+   * @param channel
+   *
+   * @returns {Promise<{state: *, status: string}|{msg: string, error: *}>}
+   */
+  async getDevicePowerState(deviceId, channel = 1) {
+    const status = await this.makeRequest({
+      uri: '/user/device/status',
+      qs: deviceStatusPayload({ deviceId, params: 'switch|switches' }),
+    });
+
+    const error = _get(status, 'error', false);
+
+    if (error) {
+      const err = error === 400 ? 404 : error;
+      return { error: err, msg: errors[err] };
+    }
+
+    let state = _get(status, 'params.switch', false);
+    const switches = _get(status, 'params.switches', false);
+
+    const switchesAmount = switches ? switches.length : 1;
+
+    if (switchesAmount > 0 && switchesAmount < channel) {
+      return { error: 404, msg: errors.ch404 };
+    }
+
+    if (switches) {
+      state = switches[channel - 1].switch;
+    }
+
+    return { status: 'ok', state, channel };
+  },
+};

src/mixins/getDevicePowerUsage.js

@@ -1,8 +1,7 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const parsePowerUsage = require('../parsers/parsePowerUsage');
 
-const { CurrentMonth } = require('../../classes/PowerUsage');
+module.exports = {
-
-const getDevicePowerUsageMixin = {
   /**
    * Get device power usage for current month
    *
@@ -11,7 +10,7 @@ const getDevicePowerUsageMixin = {
    * @returns {Promise<{error: string}|{daily: *, monthly: *}>}
    */
   async getDevicePowerUsage(deviceId) {
-    const response = await this.getDeviceRawPowerUsage(deviceId);
+    const response = await this.getDevicePowerUsageRaw(deviceId);
 
     const error = _get(response, 'error', false);
     const hundredDaysKwhData = _get(response, 'data.hundredDaysKwhData', false);
@@ -22,9 +21,7 @@ const getDevicePowerUsageMixin = {
 
     return {
       status: 'ok',
-      ...CurrentMonth.parse({ hundredDaysKwhData }),
+      ...parsePowerUsage({ hundredDaysKwhData }),
     };
   },
 };
-
-module.exports = getDevicePowerUsageMixin;

src/mixins/getDevicePowerUsageRaw.js

@@ -1,8 +1,8 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
 
-const { DeviceRaw } = require('../../classes/PowerUsage');
+const DevicePowerUsageRaw = require('../classes/DevicePowerUsageRaw');
 
-const getDeviceRawPowerUsageMixin = {
+module.exports = {
   /**
    * Get device raw power usage
    *
@@ -10,7 +10,7 @@ const getDeviceRawPowerUsageMixin = {
    *
    * @returns {Promise<{error: string}|{response: {hundredDaysKwhData: *}, status: string}>}
    */
-  async getDeviceRawPowerUsage(deviceId) {
+  async getDevicePowerUsageRaw(deviceId) {
     const device = await this.getDevice(deviceId);
     const deviceApiKey = _get(device, 'apikey', false);
 
@@ -25,8 +25,6 @@ const getDeviceRawPowerUsageMixin = {
       actionParams.apiKey = deviceApiKey;
     }
 
-    return DeviceRaw.get(actionParams);
+    return DevicePowerUsageRaw.get(actionParams);
   },
 };
-
-module.exports = getDeviceRawPowerUsageMixin;

src/mixins/getDevices.js

@@ -0,0 +1,36 @@
+const { APP_ID } = require('../data/constants');
+const { _get, timestamp } = require('../helpers/utilities');
+const errors = require('../data/errors');
+
+module.exports = {
+  /**
+   * Get all devices information
+   *
+   * @returns {Promise<{msg: string, error: number}|*>}
+   */
+  async getDevices() {
+    const response = await this.makeRequest({
+      uri: '/user/device',
+      qs: {
+        lang: 'en',
+        appid: APP_ID,
+        ts: timestamp,
+        version: 8,
+        getTags: 1,
+      },
+    });
+
+    const error = _get(response, 'error', false);
+    const devicelist = _get(response, 'devicelist', false);
+
+    if (error) {
+      return { error, msg: errors[error] };
+    }
+
+    if (!devicelist) {
+      return { error: 404, msg: errors.noDevices };
+    }
+
+    return devicelist;
+  },
+};

src/mixins/getFirmwareVersion.js

@@ -1,6 +1,7 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const getFirmwareVersionMixin = {
+module.exports = {
   /**
    * Get device firmware version
    *
@@ -14,14 +15,9 @@ const getFirmwareVersionMixin = {
     const fwVersion = _get(device, 'params.fwVersion', false);
 
     if (error || !fwVersion) {
-      if (error === 401) {
+      return { error, msg: errors[error] };
-        return device;
-      }
-      return { error, msg: 'Device does not exist' };
     }
 
     return { status: 'ok', fwVersion };
   },
 };
-
-module.exports = getFirmwareVersionMixin;

src/mixins/getRegion.js

@@ -1,12 +1,10 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const getRegionMixin = {
+module.exports = {
   async getRegion() {
     if (!this.email || !this.password) {
-      return {
+      return { error: 406, msg: errors.invalidAuth };
-        error: 406,
-        msg: 'Library needs to be initialized using email and password',
-      };
     }
 
     const credentials = await this.getCredentials();
@@ -23,5 +21,3 @@ const getRegionMixin = {
     };
   },
 };
-
-module.exports = getRegionMixin;

src/mixins/index.js

@@ -0,0 +1,41 @@
+const { checkDevicesUpdates } = require('./checkDevicesUpdates');
+const { checkDeviceUpdate } = require('./checkDeviceUpdate');
+const { getCredentials } = require('./getCredentials');
+const { getDevice } = require('./getDevice');
+const { getDeviceChannelCount } = require('./getDeviceChannelCount');
+const getDeviceCurrentTH = require('./getDeviceCurrentTH');
+const { getDeviceIP } = require('./getDeviceIP');
+const { getDevicePowerState } = require('./getDevicePowerState');
+const { getDevicePowerUsage } = require('./getDevicePowerUsage');
+const { getDevicePowerUsageRaw } = require('./getDevicePowerUsageRaw');
+const { getDevices } = require('./getDevices');
+const { getFirmwareVersion } = require('./getFirmwareVersion');
+const { getRegion } = require('./getRegion');
+const { makeRequest } = require('./makeRequest')
+const { openWebSocket } = require('./openWebSocket');
+const { saveDevicesCache } = require('./saveDevicesCache');
+const { setDevicePowerState } = require('./setDevicePowerState');
+const { toggleDevice } = require('./toggleDevice');
+
+const mixins = {
+  checkDevicesUpdates,
+  checkDeviceUpdate,
+  getCredentials,
+  getDevice,
+  getDeviceChannelCount,
+  ...getDeviceCurrentTH,
+  getDeviceIP,
+  getDevicePowerState,
+  getDevicePowerUsage,
+  getDevicePowerUsageRaw,
+  getDevices,
+  getFirmwareVersion,
+  getRegion,
+  makeRequest,
+  openWebSocket,
+  saveDevicesCache,
+  setDevicePowerState,
+  toggleDevice,
+};
+
+module.exports = mixins;

src/mixins/makeRequest.js

@@ -0,0 +1,55 @@
+const fetch = require('node-fetch');
+const { _get, _empty, toQueryString } = require('../helpers/utilities');
+const errors = require('../data/errors');
+
+module.exports = {
+  /**
+   * Helper to make api requests
+   *
+   * @param method
+   * @param url
+   * @param uri
+   * @param body
+   * @param qs
+   * @returns {Promise<{msg: *, error: *}|*>}
+   */
+  async makeRequest({ method = 'get', url, uri, body = {}, qs = {} }) {
+    const { at } = this;
+
+    if (!at) {
+      await this.getCredentials();
+    }
+
+    let apiUrl = this.getApiUrl();
+
+    if (url) {
+      apiUrl = url;
+    }
+
+    const payload = {
+      method,
+      headers: {
+        Authorization: `Bearer ${this.at}`,
+        'Content-Type': 'application/json',
+      },
+    };
+
+    if (!_empty(body)) {
+      payload.body = JSON.stringify(body);
+    }
+
+    const queryString = !_empty(qs) ? toQueryString(qs) : '';
+    const requestUrl = `${apiUrl}${uri}${queryString}`;
+
+    const request = await fetch(requestUrl, payload);
+    const response = await request.json();
+
+    const error = _get(response, 'error', false);
+
+    if (error) {
+      return { error, msg: errors[error] };
+    }
+
+    return response;
+  },
+};

src/mixins/openWebSocket.js

@@ -1,9 +1,9 @@
 const W3CWebSocket = require('websocket').w3cwebsocket;
 const WebSocketAsPromised = require('websocket-as-promised');
 
-const payloads = require('../../lib/payloads');
+const wssLoginPayload = require('../payloads/wssLoginPayload');
 
-const openWebSocketMixin = {
+module.exports = {
   /**
    * Open a socket connection to eWeLink
    * and execute callback function with server message as argument
@@ -13,7 +13,7 @@ const openWebSocketMixin = {
    * @returns {Promise<WebSocketAsPromised>}
    */
   async openWebSocket(callback, ...{ heartbeat = 120000 }) {
-    const payloadLogin = payloads.wssLoginPayload({
+    const payloadLogin = wssLoginPayload({
       at: this.at,
       apiKey: this.apiKey,
     });
@@ -41,5 +41,3 @@ const openWebSocketMixin = {
     return wsp;
   },
 };
-
-module.exports = openWebSocketMixin;

src/mixins/saveDevicesCache.js

@@ -1,8 +1,8 @@
 const fs = require('fs');
 
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
 
-const saveDevicesCacheMixin = {
+module.exports = {
   /**
    * Save devices cache file (useful for using zeroconf)
    * @returns {Promise<string|{msg: string, error: number}|*|Device[]|{msg: string, error: number}>}
@@ -13,7 +13,6 @@ const saveDevicesCacheMixin = {
     const error = _get(devices, 'error', false);
 
     if (error || !devices) {
-      console.log(devices);
       return devices;
     }
 
@@ -28,5 +27,3 @@ const saveDevicesCacheMixin = {
     }
   },
 };
-
-module.exports = saveDevicesCacheMixin;

src/mixins/setDevicePowerState.js

@@ -1,12 +1,12 @@
-const { _get } = require('../../lib/helpers');
+const { APP_ID } = require('../data/constants');
+const { _get, timestamp, nonce } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const { getDeviceChannelCount } = require('../../lib/ewelink-helper');
+const { getDeviceChannelCount } = require('../helpers/ewelink');
-const {
-  ChangeState,
-  ChangeStateZeroconf,
-} = require('../../classes/PowerState');
 
-const setDevicePowerState = {
+const ChangeStateZeroconf = require('../classes/ChangeStateZeroconf');
+
+module.exports = {
   /**
    * Change power state for a specific device
    *
@@ -18,7 +18,6 @@ const setDevicePowerState = {
    */
   async setDevicePowerState(deviceId, state, channel = 1) {
     const device = await this.getDevice(deviceId);
-    const deviceApiKey = _get(device, 'apikey', false);
     const error = _get(device, 'error', false);
     const uiid = _get(device, 'extra.extra.uiid', false);
 
@@ -28,14 +27,11 @@ const setDevicePowerState = {
     const switchesAmount = getDeviceChannelCount(uiid);
 
     if (switchesAmount > 0 && switchesAmount < channel) {
-      return { error, msg: 'Device channel does not exist' };
+      return { error: 404, msg: errors.ch404 };
     }
 
     if (error || (!status && !switches)) {
-      if (error && parseInt(error) === 401) {
+      return { error, msg: errors[error] };
-        return device;
-      }
-      return { error, msg: 'Device does not exist' };
     }
 
     let stateToSwitch = state;
@@ -66,21 +62,25 @@ const setDevicePowerState = {
       });
     }
 
-    const actionParams = {
+    const response = await this.makeRequest({
-      apiUrl: this.getApiWebSocket(),
+      method: 'post',
-      at: this.at,
+      uri: '/user/device/status',
-      apiKey: this.apiKey,
+      body: {
-      deviceId,
+        deviceid: deviceId,
-      params,
+        params,
-      state: stateToSwitch,
+        appid: APP_ID,
-    };
+        nonce,
+        ts: timestamp,
+        version: 8,
+      },
+    });
 
-    if (this.apiKey !== deviceApiKey) {
+    const responseError = _get(response, 'error', false);
-      actionParams.apiKey = deviceApiKey;
+
+    if (responseError) {
+      return { error: responseError, msg: errors[responseError] };
     }
 
-    return ChangeState.set(actionParams);
+    return { status: 'ok', state, channel };
   },
 };
-
-module.exports = setDevicePowerState;

src/mixins/toggleDevice.js

@@ -1,4 +1,4 @@
-const toggleDeviceMixin = {
+module.exports = {
   /**
    * Toggle power state for a specific device
    *
@@ -11,5 +11,3 @@ const toggleDeviceMixin = {
     return this.setDevicePowerState(deviceId, 'toggle', channel);
   },
 };
-
-module.exports = toggleDeviceMixin;

src/parsers/parseFirmwareUpdates.js

@@ -1,15 +1,16 @@
-const { _get } = require('../../lib/helpers');
+const { _get } = require('../helpers/utilities');
+const errors = require('../data/errors');
 
-const firmwareUpdate = devicesList =>
+const parseFirmwareUpdates = devicesList =>
   devicesList.map(device => {
     const model = _get(device, 'extra.extra.model', false);
     const fwVersion = _get(device, 'params.fwVersion', false);
 
     if (!model || !fwVersion) {
-      return { error: 500, msg: "Can't get model or firmware version" };
+      return { error: 500, msg: errors.noFirmware };
     }
 
     return { model, version: fwVersion, deviceid: device.deviceid };
   });
 
-module.exports = firmwareUpdate;
+module.exports = parseFirmwareUpdates;

src/parsers/parsePowerUsage.js

@@ -0,0 +1,38 @@
+/**
+ * Return daily power usage
+ *
+ * @param hundredDaysKwhData
+ *
+ * @returns {{daily: *, monthly: *}}
+ */
+const parsePowerUsage = ({ hundredDaysKwhData }) => {
+  const today = new Date();
+  const days = today.getDate();
+
+  let monthlyUsage = 0;
+  const dailyUsage = [];
+
+  for (let day = 0; day < days; day += 1) {
+    const s = hundredDaysKwhData.substr(6 * day, 2);
+    const c = hundredDaysKwhData.substr(6 * day + 2, 2);
+    const f = hundredDaysKwhData.substr(6 * day + 4, 2);
+    const h = parseInt(s, 16);
+    const y = parseInt(c, 16);
+    const I = parseInt(f, 16);
+    const E = parseFloat(`${h}.${y}${I}`);
+
+    dailyUsage.push({
+      day: days - day,
+      usage: E,
+    });
+
+    monthlyUsage += E;
+  }
+
+  return {
+    monthly: monthlyUsage,
+    daily: dailyUsage,
+  };
+};
+
+module.exports = parsePowerUsage;

src/payloads/credentialsPayload.js

@@ -0,0 +1,14 @@
+const { APP_ID } = require('../data/constants');
+const { timestamp, nonce } = require('../helpers/utilities');
+
+const credentialsPayload = ({ email, phoneNumber, password }) => ({
+  appid: APP_ID,
+  email,
+  phoneNumber,
+  password,
+  ts: timestamp,
+  version: 8,
+  nonce,
+});
+
+module.exports = credentialsPayload;

src/payloads/deviceStatus.js

@@ -0,0 +1,13 @@
+const { APP_ID } = require('../data/constants');
+const { timestamp, nonce } = require('../helpers/utilities');
+
+const deviceStatus = ({ deviceId, params }) => ({
+  deviceid: deviceId,
+  appid: APP_ID,
+  nonce,
+  ts: timestamp,
+  version: 8,
+  params,
+});
+
+module.exports = deviceStatus;

src/payloads/wssLoginPayload.js

@@ -0,0 +1,20 @@
+const { APP_ID } = require('../data/constants');
+const { timestamp, nonce } = require('../helpers/utilities');
+
+const wssLoginPayload = ({ at, apiKey }) => {
+  const payload = {
+    action: 'userOnline',
+    at,
+    apikey: apiKey,
+    appid: APP_ID,
+    nonce,
+    ts: timestamp,
+    userAgent: 'ewelink-api',
+    sequence: Math.floor(timestamp * 1000),
+    version: 8,
+  };
+
+  return JSON.stringify(payload);
+};
+
+module.exports = wssLoginPayload;

src/payloads/wssUpdatePayload.js

@@ -1,14 +1,15 @@
+const { timestamp } = require('../helpers/utilities');
+
 const wssUpdatePayload = ({ apiKey, deviceId, params }) => {
-  const timeStamp = new Date() / 1000;
-  const sequence = Math.floor(timeStamp * 1000);
   const payload = {
     action: 'update',
-    deviceid: `${deviceId}`,
     apikey: apiKey,
+    deviceid: deviceId,
     selfApikey: apiKey,
     params,
-    sequence,
+    ts: timestamp,
-    userAgent: 'app',
+    userAgent: 'ewelink-api',
+    sequence: Math.floor(timestamp * 1000),
   };
   return JSON.stringify(payload);
 };

src/payloads/zeroConfUpdatePayload.js

@@ -1,11 +1,11 @@
-const { encryptationData } = require('../ewelink-helper');
+const { encryptationData } = require('../helpers/ewelink');
+const { timestamp } = require('../helpers/utilities');
 
 const zeroConfUpdatePayload = (selfApikey, deviceId, deviceKey, params) => {
   const encryptedData = encryptationData(JSON.stringify(params), deviceKey);
-  const timeStamp = new Date() / 1000;
+
-  const sequence = Math.floor(timeStamp * 1000);
   return {
-    sequence: sequence.toString(),
+    sequence: Math.floor(timestamp * 1000).toString(),
     deviceid: deviceId,
     selfApikey,
     iv: encryptedData.iv,

test/_setup/cache/.gitignore

@@ -0,0 +1,3 @@
+# this folder contains cache files used on ZeroConf test cases
+*
+!.gitignore

test/_setup/config/.gitignore

@@ -0,0 +1 @@
+credentials.js

test/_setup/expectations.js

@@ -12,7 +12,6 @@ const allDevicesExpectations = {
   showBrand: expect.any(Boolean),
   extra: {
     extra: {
-      uiid: expect.any(Number),
       model: expect.any(String),
     },
   },
@@ -25,7 +24,6 @@ const specificDeviceExpectations = {
   online: expect.any(Boolean),
   extra: {
     extra: {
-      uiid: expect.any(Number),
       model: expect.any(String),
     },
   },

test/_setup/nock-helpers.js

@@ -0,0 +1,61 @@
+const nock = require('nock');
+const { writeFile } = require('fs');
+
+exports.startNockRecording = () => {
+  nock.recorder.rec({
+    dont_print: true,
+    enable_reqheaders_recording: false,
+    output_objects: true,
+  });
+};
+
+exports.storeNockRecordings = pathToTape => {
+  const nockCallObjects = nock.recorder.play();
+  writeFile(pathToTape, JSON.stringify(nockCallObjects, null, 2), () => {});
+};
+
+exports.playbackNockTapes = pathToTape => {
+  const nocks = nock.load(pathToTape);
+
+  nocks.forEach(function(n) {
+    n.filteringPath(path => filteringPath(n, path));
+    n.filteringRequestBody((b, rb) => filteringRequestBody(b, rb));
+  });
+
+  nock.recorder.play();
+};
+
+/**
+ * Replace dynamic values on request body using recorded data
+ */
+const filteringRequestBody = (body, recordedBody) => {
+  if (typeof body !== 'string' || typeof recordedBody !== 'object') {
+    return body;
+  }
+  const jsonBody = JSON.parse(body);
+  jsonBody.ts = recordedBody.ts;
+  jsonBody.nonce = recordedBody.nonce;
+  return JSON.stringify(jsonBody);
+};
+
+/**
+ * Replace dynamic values on request URLs using recorded data
+ */
+const filteringPath = (n, path) => {
+  const regexTimestampInPath = /(?<=ts=)[^&]*/g;
+  const timestampInPath = path.match(regexTimestampInPath);
+
+  if (!timestampInPath) {
+    return path;
+  }
+
+  const regexTimestampInRecordedPath = /ts=[^&]*/g;
+  const recordedPath = n.interceptors[0].uri;
+  const timestampInRecordedPath = recordedPath.match(regexTimestampInPath);
+  const updatedPath = recordedPath.replace(
+    regexTimestampInRecordedPath,
+    `ts=${timestampInRecordedPath[0]}`
+  );
+
+  return updatedPath;
+};

test/_setup/setupTests.js

@@ -0,0 +1,59 @@
+const path = require('path');
+const delay = require('delay');
+
+const {
+  startNockRecording,
+  storeNockRecordings,
+  playbackNockTapes,
+} = require('./nock-helpers');
+
+// Change to 'record' or 'play' to use nock on tests
+// Set to false to run live against eWeLink servers
+const nockAction = false;
+
+// These files needs a cooldown delay between tests
+const testsToDelay = [
+  'env-node.spec.js',
+  'env-serverless.spec.js',
+  'invalid-credentials.spec.js',
+  'power-usage.spec.js',
+  'temperature-humidity.spec.js',
+  'valid-credentials.spec.js',
+];
+
+const getTapFilename = global => {
+  const { testPath } = global.jasmine;
+  const tapeFile = path.basename(testPath, '.js');
+  return `./test/_setup/tapes/${tapeFile}.json`;
+};
+
+global.beforeAll(() => {
+  if (nockAction === 'record') {
+    startNockRecording();
+  }
+
+  if (nockAction === 'play') {
+    const tapeFile = getTapFilename(global);
+    playbackNockTapes(tapeFile);
+  }
+});
+
+global.afterAll(() => {
+  if (nockAction === 'record') {
+    const tapeFile = getTapFilename(global);
+    storeNockRecordings(tapeFile);
+  }
+});
+
+global.beforeEach(async () => {
+  if (nockAction === 'play') {
+    return;
+  }
+
+  const { testPath } = global.jasmine;
+  const testFile = path.basename(testPath);
+
+  if (testsToDelay.includes(testFile)) {
+    await delay(1000);
+  }
+});

test/_setup/tapes/.gitignore

@@ -0,0 +1,3 @@
+# this folder will store "tape" files for nock
+*
+!.gitignore

test/class-instantiation.spec.js

@@ -0,0 +1,156 @@
+const ewelink = require('../main');
+const errors = require('../src/data/errors');
+
+describe('main class instantiation: valid parameters combinations', () => {
+  test('email and password should initialize class', async () => {
+    const credentials = { email: 'user@email.com', password: 'pass' };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'us',
+      email: credentials.email,
+      phoneNumber: null,
+      password: credentials.password,
+      apiKey: null,
+      arpTable: null,
+      at: null,
+      devicesCache: null,
+    });
+  });
+
+  test('email and password with region should initialize class', async () => {
+    const credentials = {
+      region: 'cn',
+      email: 'user@email.com',
+      password: 'pass',
+    };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'cn',
+      email: credentials.email,
+      phoneNumber: null,
+      password: credentials.password,
+      apiKey: null,
+      arpTable: null,
+      at: null,
+      devicesCache: null,
+    });
+  });
+
+  test('phone number and password should initialize class', async () => {
+    const credentials = { phoneNumber: '555123789', password: 'pass' };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'us',
+      email: null,
+      phoneNumber: credentials.phoneNumber,
+      password: credentials.password,
+      apiKey: null,
+      at: null,
+      arpTable: null,
+      devicesCache: null,
+    });
+  });
+
+  test('access token should initialize class', async () => {
+    const credentials = { at: 'xxxyyyzzz' };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'us',
+      email: null,
+      phoneNumber: null,
+      password: null,
+      apiKey: null,
+      at: credentials.at,
+      arpTable: null,
+      devicesCache: null,
+    });
+  });
+
+  test('devices and arp table cache files should initialize class', async () => {
+    const credentials = { devicesCache: 'devices', arpTable: 'arptable' };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'us',
+      email: null,
+      phoneNumber: null,
+      password: null,
+      apiKey: null,
+      at: null,
+      arpTable: credentials.arpTable,
+      devicesCache: credentials.devicesCache,
+    });
+  });
+
+  test('email and access token should initialize class', async () => {
+    const credentials = {
+      email: 'user@email.com',
+      at: 'xxxyyyzzz',
+    };
+    const connection = new ewelink(credentials);
+    expect(connection).toEqual({
+      region: 'us',
+      email: credentials.email,
+      phoneNumber: null,
+      password: null,
+      apiKey: null,
+      at: credentials.at,
+      arpTable: null,
+      devicesCache: null,
+    });
+  });
+});
+
+describe('main class instantiation: invalid parameters combinations', () => {
+  test('user and no password should fail', async () => {
+    const credentials = { email: 'user@email.com' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('only password should fail', async () => {
+    const credentials = { password: 'pass' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('phone number and no password should fail', async () => {
+    const credentials = { phoneNumber: '555123789' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('email and phone number should fail', async () => {
+    const credentials = { email: 'user@email.com', phoneNumber: '555123789' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('email and phone number with password should fail', async () => {
+    const credentials = {
+      email: 'user@email.com',
+      phoneNumber: '555123789',
+      password: 'pass',
+    };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('devices cache without arp table should fail', async () => {
+    const credentials = { devicesCache: 'devices' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+
+  test('arp table without devices cache should fail', async () => {
+    const credentials = { arpTable: 'arptable' };
+    expect(() => {
+      const connection = new ewelink(credentials);
+    }).toThrow(errors.invalidCredentials);
+  });
+});

test/env-node.spec.js

@@ -1,5 +1,3 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
 
 const {
@@ -7,7 +5,7 @@ const {
   password,
   singleChannelDeviceId,
   fourChannelsDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const {
   credentialsExpectations,
@@ -22,10 +20,6 @@ describe('env: node script', () => {
     conn = new ewelink({ email, password });
   });
 
-  beforeEach(async () => {
-    await delay(1000);
-  });
-
   test('get ewelink credentials', async () => {
     const credentials = await conn.getCredentials();
     expect(typeof credentials).toBe('object');

test/env-serverless.spec.js

@@ -1,5 +1,3 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
 
 const {
@@ -7,7 +5,7 @@ const {
   password,
   singleChannelDeviceId,
   fourChannelsDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const {
   credentialsExpectations,
@@ -19,10 +17,6 @@ describe('env: serverless', () => {
   let accessToken;
   let apiKey;
 
-  beforeEach(async () => {
-    await delay(1000);
-  });
-
   test('get ewelink credentials', async () => {
     const conn = new ewelink({ email, password });
     const credentials = await conn.getCredentials();

test/firmware.spec.js

@@ -1,4 +1,5 @@
 const ewelink = require('../main');
+const errors = require('../src/data/errors');
 
 const {
   email,
@@ -6,11 +7,11 @@ const {
   singleChannelDeviceId,
   outdatedFirmwareDevice,
   updatedFirmwareDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const { firmwareExpectations } = require('./_setup/expectations');
 
-describe.skip('firmware: get version methods', () => {
+describe('firmware: get version methods', () => {
   let connection;
 
   beforeAll(() => {
@@ -42,27 +43,27 @@ describe.skip('firmware: get version methods', () => {
     const conn = new ewelink({ email, password });
     const firmwareVersion = await conn.getFirmwareVersion('invalid deviceid');
     expect(typeof firmwareVersion).toBe('object');
-    expect(firmwareVersion.msg).toBe('Device does not exist');
+    expect(firmwareVersion.msg).toBe(errors['404']);
-    expect(firmwareVersion.error).toBe(500);
+    expect(firmwareVersion.error).toBe(404);
   });
 
   test('get device firmware version using invalid credentials should fail', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const firmware = await conn.getFirmwareVersion(singleChannelDeviceId);
     expect(typeof firmware).toBe('object');
-    expect(firmware.msg).toBe('Authentication error');
+    expect(firmware.msg).toBe(errors['406']);
-    expect(firmware.error).toBe(401);
+    expect(firmware.error).toBe(406);
   });
 });
 
-describe.skip('firmware: check updates methods', () => {
+describe('firmware: check updates methods', () => {
   let connection;
 
   beforeAll(() => {
     connection = new ewelink({ email, password });
   });
 
-  test.skip('outdated device firmware should return available version', async () => {
+  test('outdated device firmware should return available version', async () => {
     const status = await connection.checkDeviceUpdate(outdatedFirmwareDevice);
     expect(typeof status).toBe('object');
     expect(typeof status).toBe('object');
@@ -82,7 +83,8 @@ describe.skip('firmware: check updates methods', () => {
   test('invalid device update check should return error', async () => {
     const status = await connection.checkDeviceUpdate('invalid deviceid');
     expect(typeof status).toBe('object');
-    expect(status.error).toBe(500);
+    expect(status.msg).toBe(errors['404']);
+    expect(status.error).toBe(404);
   });
 
   test('get devices update check should be valid response', async () => {
@@ -95,7 +97,7 @@ describe.skip('firmware: check updates methods', () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const status = await conn.checkDevicesUpdates();
     expect(typeof status).toBe('object');
-    expect(status.msg).toBe('Authentication error');
+    expect(status.msg).toBe(errors['406']);
-    expect(status.error).toBe(401);
+    expect(status.error).toBe(406);
   });
 });

test/helpers.spec.js

@@ -1,19 +1,10 @@
-const ewelinkHelpers = require('../lib/ewelink-helper');
+const ewelinkHelpers = require('../src/helpers/ewelink');
 
 describe('check eWeLink helpers', () => {
-  test('should return fake imei', async () => {
-    const imei = ewelinkHelpers.makeFakeIMEI();
-    expect(imei.length).toBe(36);
-    expect(imei.substr(0, 9)).toBe('DF7425A0-');
-    expect(imei.substr(imei.length - 18, imei.length)).toBe(
-      '-9F5E-3BC9179E48FB'
-    );
-  });
-
   test('make authorization sign should return right string', async () => {
     const auth = ewelinkHelpers.makeAuthorizationSign({ data: 'string' });
     expect(auth.length).toBe(44);
-    expect(auth).toBe('WtmdvaPxqhi3pd8ck1R/bvzfRzHgxDTwgnuOib33xx4=');
+    expect(auth).toBe('7Aaa/8EuRScACNrZTATW2WKIY7lcRnjgWHTiBl8G0TQ=');
   });
 
   test('getDeviceChannelCount method should return right value', async () => {

test/invalid-credentials.spec.js

@@ -1,54 +1,51 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
+const errors = require('../src/data/errors');
 
 const {
   singleChannelDeviceId,
   deviceIdWithPower,
   fourChannelsDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 describe('invalid credentials', () => {
-  beforeEach(async () => {
-    await delay(1000);
-  });
-
   test('no credentials given', async () => {
-    const conn = new ewelink({});
+    expect(() => {
-    expect(typeof conn).toBe('object');
+      const conn = new ewelink({});
-    expect(conn.error).toBe('No credentials provided');
+    }).toThrow(errors.invalidCredentials);
   });
 
   test('get error response on ewelink credentials', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const credentials = await conn.getCredentials();
     expect(typeof credentials).toBe('object');
-    expect(credentials.msg).toBe('Authentication error');
+    expect(credentials.msg).toBe(errors[406]);
-    expect(credentials.error).toBe(400);
+    expect(credentials.error).toBe(406);
   });
 
   test('get error response on all devices', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const devices = await conn.getDevices();
     expect(typeof devices).toBe('object');
-    expect(devices.msg).toBe('Authentication error');
+    expect(devices.msg).toBe(errors['406']);
-    expect(devices.error).toBe(401);
+    expect(devices.error).toBe(406);
   });
 
   test('get error response on specific device', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const device = await conn.getDevice(singleChannelDeviceId);
+    const { msg, error } = device;
     expect(typeof device).toBe('object');
-    expect(device.msg).toBe('Authentication error');
+    expect(msg).toBe(errors[406]);
-    expect(device.error).toBe(401);
+    expect(error).toBe(406);
   });
 
   test('get device power state should fail', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const powerState = await conn.getDevicePowerState(singleChannelDeviceId);
+    const { msg, error } = powerState;
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Authentication error');
+    expect(msg).toBe(errors[401]);
-    expect(powerState.error).toBe(401);
+    expect(error).toBe(401);
   });
 
   test('set device power state should fail', async () => {
@@ -58,17 +55,17 @@ describe('invalid credentials', () => {
       singleChannelDeviceId,
       'on'
     );
+    const { msg, error } = powerState;
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Authentication error');
+    expect(msg).toBe(errors[406]);
-    expect(powerState.error).toBe(401);
+    expect(error).toBe(406);
   });
 
   test('current month power usage should fail', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const powerUsage = await conn.getDevicePowerUsage(deviceIdWithPower);
     expect(typeof powerUsage).toBe('object');
-    expect(powerUsage.msg).toBe('Forbidden');
+    expect(powerUsage.error).toBe(errors.noPower);
-    expect(powerUsage.error).toBe(403);
   });
 
   test('get channel count 1 should fail', async () => {
@@ -76,16 +73,18 @@ describe('invalid credentials', () => {
     const switchesAmount = await conn.getDeviceChannelCount(
       singleChannelDeviceId
     );
+    const { msg, error } = switchesAmount;
     expect(typeof switchesAmount).toBe('object');
-    expect(switchesAmount.msg).toBe('Authentication error');
+    expect(msg).toBe(errors[406]);
-    expect(switchesAmount.error).toBe(401);
+    expect(error).toBe(406);
   });
 
   test('get channel count 4 should fail', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const switchesAmount = await conn.getDeviceChannelCount(fourChannelsDevice);
+    const { msg, error } = switchesAmount;
     expect(typeof switchesAmount).toBe('object');
-    expect(switchesAmount.msg).toBe('Authentication error');
+    expect(msg).toBe(errors[406]);
-    expect(switchesAmount.error).toBe(401);
+    expect(error).toBe(406);
   });
 });

test/power-usage.spec.js

@@ -1,12 +1,10 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
 
 const {
   email,
   password,
   deviceIdWithPower,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const {
   rawPowerUsageExpectations,
@@ -21,13 +19,9 @@ describe('power usage: node script', () => {
     await conn.getCredentials();
   });
 
-  beforeEach(async () => {
-    await delay(1000);
-  });
-
   test('should return raw power usage', async () => {
     jest.setTimeout(30000);
-    const powerUsage = await conn.getDeviceRawPowerUsage(deviceIdWithPower);
+    const powerUsage = await conn.getDevicePowerUsageRaw(deviceIdWithPower);
     expect(typeof powerUsage).toBe('object');
     expect(powerUsage).toMatchObject(rawPowerUsageExpectations);
     expect(powerUsage.data.hundredDaysKwhData.length).toBe(600);
@@ -57,7 +51,7 @@ describe('power usage: serverless', () => {
   test('should return raw power usage', async () => {
     jest.setTimeout(30000);
     const conn = new ewelink({ at: accessToken, apiKey });
-    const powerUsage = await conn.getDeviceRawPowerUsage(deviceIdWithPower);
+    const powerUsage = await conn.getDevicePowerUsageRaw(deviceIdWithPower);
     expect(typeof powerUsage).toBe('object');
     expect(powerUsage).toMatchObject(rawPowerUsageExpectations);
     expect(powerUsage.data.hundredDaysKwhData.length).toBe(600);

test/temperature-humidity.spec.js

@@ -1,13 +1,12 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
+const errors = require('../src/data/errors');
 
 const {
   email,
   password,
   deviceIdWithoutTempAndHum,
   deviceIdWithTempAndHum: thDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 describe('current temperature and humidity: node script', () => {
   let conn;
@@ -19,7 +18,6 @@ describe('current temperature and humidity: node script', () => {
   });
 
   beforeEach(async () => {
-    await delay(1000);
     device = await conn.getDevice(thDevice);
   });
 
@@ -63,7 +61,6 @@ describe('current temperature and humidity: serverless', () => {
   });
 
   beforeEach(async () => {
-    await delay(1000);
     connSL = new ewelink({ at: accessToken, apiKey });
     device = await connSL.getDevice(thDevice);
   });
@@ -99,16 +96,16 @@ describe('current temperature and humidity: invalid device', () => {
     const conn = new ewelink({ email, password });
     const temperature = await conn.getDeviceCurrentTemperature('invalid');
     expect(typeof temperature).toBe('object');
-    expect(temperature.msg).toBe('Device does not exist');
+    expect(temperature.msg).toBe(errors['404']);
-    expect(temperature.error).toBe(500);
+    expect(temperature.error).toBe(404);
   });
 
   test('get device current humidity should fail', async () => {
     const conn = new ewelink({ email, password });
     const humidity = await conn.getDeviceCurrentHumidity('invalid');
     expect(typeof humidity).toBe('object');
-    expect(humidity.msg).toBe('Device does not exist');
+    expect(humidity.msg).toBe(errors['404']);
-    expect(humidity.error).toBe(500);
+    expect(humidity.error).toBe(404);
   });
 });
 
@@ -119,8 +116,8 @@ describe('current temperature and humidity: device without sensor', () => {
       deviceIdWithoutTempAndHum
     );
     expect(typeof temperature).toBe('object');
-    expect(temperature.msg).toBe("Can't read sensor data from device");
+    expect(temperature.msg).toBe(errors.noSensor);
-    expect(temperature.error).toBe(500);
+    expect(temperature.error).toBe(404);
   });
 
   test('get device current humidity should fail', async () => {
@@ -129,8 +126,8 @@ describe('current temperature and humidity: device without sensor', () => {
       deviceIdWithoutTempAndHum
     );
     expect(typeof humidity).toBe('object');
-    expect(humidity.msg).toBe("Can't read sensor data from device");
+    expect(humidity.msg).toBe(errors.noSensor);
-    expect(humidity.error).toBe(500);
+    expect(humidity.error).toBe(404);
   });
 });
 
@@ -139,15 +136,15 @@ describe('current temperature and humidity: invalid credentials', () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const result = await conn.getDeviceCurrentTemperature(thDevice);
     expect(typeof result).toBe('object');
-    expect(result.msg).toBe('Authentication error');
+    expect(result.msg).toBe(errors['406']);
-    expect(result.error).toBe(401);
+    expect(result.error).toBe(406);
   });
 
   test('get device current humidity should fail', async () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const result = await conn.getDeviceCurrentHumidity(thDevice);
     expect(typeof result).toBe('object');
-    expect(result.msg).toBe('Authentication error');
+    expect(result.msg).toBe(errors['406']);
-    expect(result.error).toBe(401);
+    expect(result.error).toBe(406);
   });
 });

test/user.spec.js

@@ -1,6 +1,7 @@
 const ewelink = require('../main');
+const errors = require('../src/data/errors');
 
-const { email, password, region } = require('./_setup/credentials.js');
+const { email, password, region } = require('./_setup/config/credentials.js');
 
 const { regionExpectations } = require('./_setup/expectations');
 
@@ -21,17 +22,15 @@ describe('check user information', () => {
     });
     const response = await connection.getRegion();
     expect(typeof response).toBe('object');
-    expect(response.msg).toBe('Authentication error');
+    expect(response.msg).toBe(errors['406']);
-    expect(response.error).toBe(400);
+    expect(response.error).toBe(406);
   });
 
   test('invalid initialization should warn user', async () => {
     const connection = new ewelink({ at: 'access token' });
     const response = await connection.getRegion();
     expect(typeof response).toBe('object');
-    expect(response.msg).toBe(
+    expect(response.msg).toBe(errors.invalidAuth);
-      'Library needs to be initialized using email and password'
-    );
     expect(response.error).toBe(406);
   });
 });

test/valid-credentials.spec.js

@@ -1,35 +1,30 @@
-const delay = require('delay');
-
 const ewelink = require('../main');
+const errors = require('../src/data/errors');
 
 const {
   email,
   password,
   deviceIdWithoutPower,
   fourChannelsDevice,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const { credentialsExpectations } = require('./_setup/expectations');
 
 describe('valid credentials, invalid device', () => {
-  beforeEach(async () => {
-    await delay(1000);
-  });
-
   test('get power state on invalid device should fail', async () => {
     const conn = new ewelink({ email, password });
     const powerState = await conn.getDevicePowerState('invalid deviceid');
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Device does not exist');
+    expect(powerState.msg).toBe(errors[404]);
-    expect(powerState.error).toBe(500);
+    expect(powerState.error).toBe(404);
   });
 
   test('get power state on wrong device channel should fail', async () => {
     const conn = new ewelink({ email, password });
     const powerState = await conn.getDevicePowerState(fourChannelsDevice, 8);
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Device channel does not exist');
+    expect(powerState.msg).toBe(errors.ch404);
-    expect(powerState.error).toBe(false);
+    expect(powerState.error).toBe(404);
   });
 
   test('set power state on invalid device should fail', async () => {
@@ -37,8 +32,8 @@ describe('valid credentials, invalid device', () => {
     const conn = new ewelink({ email, password });
     const powerState = await conn.setDevicePowerState('invalid deviceid', 'on');
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Device does not exist');
+    expect(powerState.msg).toBe(errors[404]);
-    expect(powerState.error).toBe(500);
+    expect(powerState.error).toBe(404);
   });
 
   test('set power state on wrong device channel should fail', async () => {
@@ -50,8 +45,8 @@ describe('valid credentials, invalid device', () => {
       8
     );
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Device channel does not exist');
+    expect(powerState.msg).toBe(errors.ch404);
-    expect(powerState.error).toBe(false);
+    expect(powerState.error).toBe(404);
   });
 
   test('toggle power state on invalid device should fail', async () => {
@@ -59,17 +54,16 @@ describe('valid credentials, invalid device', () => {
     const conn = new ewelink({ email, password });
     const powerState = await conn.toggleDevice('invalid deviceid');
     expect(typeof powerState).toBe('object');
-    expect(powerState.msg).toBe('Device does not exist');
+    expect(powerState.msg).toBe(errors[404]);
-    expect(powerState.error).toBe(500);
+    expect(powerState.error).toBe(404);
   });
 
   test('raw power usage on invalid device should fail', async () => {
     jest.setTimeout(30000);
     const conn = new ewelink({ email, password });
-    const powerUsage = await conn.getDeviceRawPowerUsage('invalid deviceid');
+    const powerUsage = await conn.getDevicePowerUsageRaw('invalid deviceid');
     expect(typeof powerUsage).toBe('object');
-    expect(powerUsage.msg).toBe('Forbidden');
+    expect(powerUsage.error).toBe(errors.noPower);
-    expect(powerUsage.error).toBe(403);
   });
 
   test('current month power usage on invalid device should fail', async () => {
@@ -77,24 +71,23 @@ describe('valid credentials, invalid device', () => {
     const conn = new ewelink({ email, password });
     const powerUsage = await conn.getDevicePowerUsage('invalid deviceid');
     expect(typeof powerUsage).toBe('object');
-    expect(powerUsage.msg).toBe('Forbidden');
+    expect(powerUsage.error).toBe(errors.noPower);
-    expect(powerUsage.error).toBe(403);
   });
 
   test('raw power on device without electricity monitor should fail', async () => {
     jest.setTimeout(30000);
     const conn = new ewelink({ email, password });
-    const powerUsage = await conn.getDeviceRawPowerUsage(deviceIdWithoutPower);
+    const powerUsage = await conn.getDevicePowerUsageRaw(deviceIdWithoutPower);
     expect(typeof powerUsage).toBe('object');
-    expect(powerUsage.error).toBe('No power usage data found.');
+    expect(powerUsage.error).toBe(errors.noPower);
   });
 
   test('get channel count should fail', async () => {
     const conn = new ewelink({ email, password });
     const switchesAmount = await conn.getDeviceChannelCount('invalid deviceid');
     expect(typeof switchesAmount).toBe('object');
-    expect(switchesAmount.msg).toBe('Device does not exist');
+    expect(switchesAmount.msg).toBe(errors[404]);
-    expect(switchesAmount.error).toBe(500);
+    expect(switchesAmount.error).toBe(404);
   });
 });
 

test/zeroconf.spec.js

@@ -1,5 +1,6 @@
 const ewelink = require('../main');
-const Zeroconf = require('../classes/Zeroconf');
+const Zeroconf = require('../src/classes/Zeroconf');
+const errors = require('../src/data/errors');
 
 const {
   email,
@@ -7,14 +8,14 @@ const {
   region,
   localIp,
   localIpInvalid,
-} = require('./_setup/credentials.js');
+} = require('./_setup/config/credentials.js');
 
 const { allDevicesExpectations } = require('./_setup/expectations');
 
 describe('zeroconf: save devices to cache file', () => {
   test('can save cached devices file', async () => {
     jest.setTimeout(30000);
-    const file = './test/_setup/devices-cache.json';
+    const file = './test/_setup/cache/devices-cache.json';
     const conn = new ewelink({ region, email, password });
     const result = await conn.saveDevicesCache(file);
     expect(typeof result).toBe('object');
@@ -36,15 +37,15 @@ describe('zeroconf: save devices to cache file', () => {
     const conn = new ewelink({ email: 'invalid', password: 'credentials' });
     const result = await conn.saveDevicesCache(file);
     expect(typeof result).toBe('object');
-    expect(result.msg).toBe('Authentication error');
+    expect(result.msg).toBe(errors['406']);
-    expect(result.error).toBe(401);
+    expect(result.error).toBe(406);
   });
 });
 
 describe('zeroconf: save arp table to file', () => {
   test('can save arp table file', async () => {
     jest.setTimeout(30000);
-    const file = './test/_setup/arp-table.json';
+    const file = './test/_setup/cache/arp-table.json';
     const arpTable = await Zeroconf.saveArpTable({
       ip: localIp,
       file,
@@ -67,7 +68,7 @@ describe('zeroconf: save arp table to file', () => {
 
   test('error saving arp table file with invalid local network', async () => {
     jest.setTimeout(30000);
-    const file = './test/_setup/arp-table.json';
+    const file = './test/_setup/cache/arp-table.json';
     const arpTable = await Zeroconf.saveArpTable({
       ip: localIpInvalid,
       file,
@@ -83,7 +84,7 @@ describe('zeroconf: load devices to cache file', () => {
     const conn = new ewelink({ region, email, password });
     const devices = await conn.getDevices();
     const devicesCache = await Zeroconf.loadCachedDevices(
-      './test/_setup/devices-cache.json'
+      './test/_setup/cache/devices-cache.json'
     );
     expect(typeof devicesCache).toBe('object');
     expect(devicesCache.length).toBe(devices.length);
@@ -101,7 +102,7 @@ describe('zeroconf: load devices to cache file', () => {
 describe('zeroconf: load arp table file', () => {
   test('can load arp table file', async () => {
     const arpTable = await Zeroconf.loadArpTable(
-      './test/_setup/arp-table.json'
+      './test/_setup/cache/arp-table.json'
     );
     expect(typeof arpTable).toBe('object');
     expect(arpTable[0]).toMatchObject({