Add basic RFID reader scanning code.

Other cleanup and docs.

src/constants.js

@@ -9,6 +9,7 @@ module.exports = {
   COBOT_SCOPE: process.env.COBOT_SCOPE,
   COBOT_USER_EMAIL: process.env.COBOT_USER_EMAIL,
   COBOT_USER_PASSWORD: process.env.COBOT_USER_PASSWORD,
-  DOOR_OPEN_DELAY: process.env.DOOR_OPEN_DELAY,
+  DOOR_OPEN_DELAY: ENV === 'test' ? 1 : 6000,
   ENV,
+  RFID_PRODUCT_NAME: process.env.RFID_PRODUCT_NAME,
 }

src/models/cobot.js

@@ -40,13 +40,6 @@ class Cobot {
       throw new Error('missing "COBOT_CLIENT_ID" env variable!')
     if (!COBOT_CLIENT_SECRET)
       throw new Error('missing "COBOT_CLIENT_SECRET" env variable!')
-    console.log(
-      COBOT_SCOPE,
-      COBOT_USER_EMAIL,
-      COBOT_USER_PASSWORD,
-      COBOT_CLIENT_ID,
-      COBOT_CLIENT_SECRET
-    )
     const qs = [
       `scope=${COBOT_SCOPE}`,
       `grant_type=password`,

src/models/rfid-reader.js

@@ -0,0 +1,28 @@
+const hid = require('node-hid')
+const { RFID_PRODUCT_NAME } = require('../constants')
+
+class RFIDReader {
+  static devices() {
+    return hid.devices() || []
+  }
+
+  static reader() {
+    const device = this.devices().find(d => d.product === RFID_PRODUCT_NAME)
+
+    if (!device) {
+      throw new Error(
+        `no RFID device found with the "RFID_PRODUCT_NAME" matching "${RFID_PRODUCT_NAME}"`
+      )
+    }
+
+    return new hid.HID(device.path)
+  }
+
+  static read() {
+    const device = this.reader()
+    device.read((err, data) => console.log(err, data))
+    return device
+  }
+}
+
+module.exports = RFIDReader

src/models/rfid-reader.test.js

@@ -0,0 +1,48 @@
+const hid = require('node-hid')
+const RFIDReader = require('./rfid-reader')
+
+jest.mock('node-hid')
+
+const rfidDevice = {
+  interface: -1,
+  manufacturer: 'Apple',
+  path:
+    'IOService:/IOResources/IOBluetoothHCIController/AppleBroadcomBluetoothHostController/IOBluetoothDevice/IOBluetoothL2CAPChannel/AppleHSBluetoothDevice/Keyboard / Boot@1/AppleHSBluetoothHIDDriver',
+  product: 'KB800HM Kinesis Freestyle2 for Mac',
+  productId: 615,
+  release: 0,
+  serialNumber: '04-69-f8-c6-d2-c2',
+  usage: 6,
+  usagePage: 1,
+  vendorId: 76,
+}
+
+describe('models/rfid-reader', () => {
+  const devices = [rfidDevice]
+
+  beforeAll(() => {
+    hid.devices.mockReturnValue(devices)
+  })
+
+  describe('.devices', () => {
+    test('lists devices', () => {
+      const actual = RFIDReader.devices()
+      expect(actual).toEqual(devices)
+    })
+  })
+
+  describe('.reader', () => {
+    test('should connect to the RFID reader and return it', () => {
+      const actual = RFIDReader.reader()
+      expect(actual).toBeInstanceOf(hid.HID)
+    })
+  })
+
+  describe('.read', () => {
+    test('it should listen for keyboard input', () => {
+      const device = RFIDReader.read()
+      console.log(device)
+      expect(device.read).toBeCalled()
+    })
+  })
+})