[philips-hue] Answer message when no lights found in a room

server/config/brain/light/answers.en.json

@@ -14,5 +14,9 @@
   {
     "label": "light.turn-off.fail",
     "answers": ["I didn't manage to turn off the light."]
+  },
+  {
+    "label": "light.not-found",
+    "answers": ["I didn't find any light in this room."]
   }
 ]

server/config/brain/light/answers.fr.json

@@ -14,5 +14,9 @@
   {
     "label": "light.turn-off.fail",
     "answers": ["Je n'ai pas réussi à éteindre la lumière."]
+  },
+  {
+    "label": "light.not-found",
+    "answers": ["Je n'ai pas trouvé de lumière dans cette pièce."]
   }
 ]

server/lib/device/light/light.command.js

@@ -15,6 +15,10 @@ const { DEVICE_FEATURE_CATEGORIES, DEVICE_FEATURE_TYPES } = require('../../../ut
 async function command(message, classification, context) {
   try {
     const devices = await this.getLightsInRoom(context.room);
+    if (devices.length === 0) {
+      this.messageManager.replyByIntent(message, 'light.not-found', context);
+      return;
+    }
     switch (classification.intent) {
       case 'light.turn-on':
         // foreach devices in room

server/test/lib/device/light/light.command.test.js

@@ -65,4 +65,15 @@ describe('Light.command', () => {
     assert.calledWith(messageManager.replyByIntent, message, 'light.turn-off.success', context);
     assert.called(testService.device.setValue);
   });
+  it('should fail to send a command because no device in this room', async () => {
+    const stateManager = new StateManager(event);
+    const deviceManager = new Device(event, messageManager, stateManager, service);
+    // Mock getLightsInRoom to answer no devices
+    deviceManager.lightManager.getLightsInRoom = () =>
+      new Promise((resolve) => {
+        resolve([]);
+      });
+    await deviceManager.lightManager.command(message, { intent: 'light.turn-off' }, context);
+    assert.calledWith(messageManager.replyByIntent, message, 'light.not-found', context);
+  });
 });