Tuya: Add isUsed function (#1834)

Author: callemand

server/services/tuya/index.js

@@ -2,6 +2,7 @@ const logger = require('../../utils/logger');
 const tuyaController = require('./api/tuya.controller');
 
 const TuyaHandler = require('./lib');
+const { STATUS } = require('./lib/utils/tuya.constants');
 
 module.exports = function TuyaService(gladys, serviceId) {
   const tuyaHandler = new TuyaHandler(gladys, serviceId);
@@ -29,9 +30,21 @@ module.exports = function TuyaService(gladys, serviceId) {
     await tuyaHandler.disconnect();
   }
 
+  /**
+   * @public
+   * @description Test if Tuya is running.
+   * @returns {Promise<boolean>} Returns true if Tuya is used.
+   * @example
+   *  const used = await gladys.services.tuya.isUsed();
+   */
+  async function isUsed() {
+    return tuyaHandler.status === STATUS.CONNECTED && tuyaHandler.connector !== null;
+  }
+
   return Object.freeze({
     start,
     stop,
+    isUsed,
     device: tuyaHandler,
     controllers: tuyaController(tuyaHandler),
   });

server/test/services/tuya/index.test.js

@@ -1,5 +1,7 @@
 const sinon = require('sinon');
+const { expect } = require('chai');
 const proxyquire = require('proxyquire').noCallThru();
+const { STATUS } = require('../../../services/tuya/lib/utils/tuya.constants');
 
 const { assert, fake } = sinon;
 
@@ -36,4 +38,16 @@ describe('TuyaService', () => {
     assert.notCalled(tuyaService.device.init);
     assert.calledOnce(tuyaService.device.disconnect);
   });
+
+  it('isUsed: should return false, service not used', async () => {
+    const used = await tuyaService.isUsed();
+    expect(used).to.equal(false);
+  });
+
+  it('isUsed: should return true, service is used', async () => {
+    tuyaService.device.status = STATUS.CONNECTED;
+    tuyaService.device.connector = {};
+    const used = await tuyaService.isUsed();
+    expect(used).to.equal(true);
+  });
 });