From 42e780cb6958e05ec3d5b58f508d78a4fed38473 Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang@hottgenroth.net>
Date: Thu, 4 Jan 2018 20:45:45 +0100
Subject: [PATCH] homematic switch device feedback

---
 src/AHomematicItem.js      |  5 +++--
 src/HomematicSwitchItem.js | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/AHomematicItem.js b/src/AHomematicItem.js
index 923a250..a68b0e1 100644
--- a/src/AHomematicItem.js
+++ b/src/AHomematicItem.js
@@ -5,8 +5,9 @@ class AHomematicItem extends AItem {
     constructor(floor, room, item, hmId) {
         super(floor, room, item);
         this.hmId = hmId;
-        this.actionTopicPre = `homegear/instance1/set/${this.hmId}`;
-        this.deviceTopicPre = `homegear/instance1/plain/${this.hmId}`;
+        this.homegearTopicPre = 'homegear/instance1';
+        this.actionTopicPre = `${this.homegearTopicPre}/set/${this.hmId}`;
+        this.deviceTopicPre = `${this.homegearTopicPre}/plain/${this.hmId}`;
     }
 }
 
diff --git a/src/HomematicSwitchItem.js b/src/HomematicSwitchItem.js
index 267bf9c..19497c5 100644
--- a/src/HomematicSwitchItem.js
+++ b/src/HomematicSwitchItem.js
@@ -8,9 +8,11 @@ class HomematicSwitchItem extends AHomematicItem {
         super(floor, room, item, hmId);
         this.stateTopic = `${this.topicFirstPart}/state`;
         this.stateFeedbackTopic = `${this.topicFirstPart}/state/feedback`;
+        this.deviceFeedbackTopic = `${this.deviceTopicPre}/1/STATE`;
         this.actionTopic = `${this.actionTopicPre}/1/STATE`;
         this.subscribeTopics = [
-            this.stateTopic
+            this.stateTopic,
+            this.deviceFeedbackTopic
         ];
         this.state = 'OFF';
         this.oldState = undefined;
@@ -31,6 +33,15 @@ class HomematicSwitchItem extends AHomematicItem {
                     this.oldState = this.state;
                 }
                 break;
+            case this.deviceFeedbackTopic:
+                if (payload == 'true') {
+                    this.state = 'ON';
+                } else {
+                    this.state = 'OFF';
+                }
+                this.oldState = this.state;
+                mqtt.send(this.stateFeedbackTopic, this.state);
+                break;
         }
     }
 }