From a69eb444fa94b7b0af7b5ad3a3690a70ceaea2db Mon Sep 17 00:00:00 2001
From: Sebastian Maier <sebastian.maier@cs.fau.de>
Date: Mon, 19 Oct 2020 14:29:10 +0200
Subject: [PATCH] Add support for direct cache updates

With this addition, updates triggered by Homebridge can directly update the last value cached
---
 index.js | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 27ad802..e5a03c3 100755
--- a/index.js
+++ b/index.js
@@ -9,7 +9,8 @@ var fs = require('fs');
 var path = require('path');
 
 var SmartHomeNGConnection =  require("./SmartHomeNGConnection.js").SmartHomeNGConnection;
-var milliTimeout = 300; // used to block responses while swiping
+//var milliTimeout = 300; // used to block responses while swiping
+var directCacheUpdate = true;
 var monitoring = [];
 var colorOn = "\x1b[30;47m";
 var colorOff = "\x1b[0m";
@@ -287,6 +288,22 @@ SmartHomeNGAccessory.prototype = {
         callback();
     },
 
+/** method for direct cache update (optional)
+ * (this is triggered by updates from Homebridge to update lastValue directly)
+ *
+ */
+    direct_update: function(item, value) {
+        if (directCacheUpdate) {
+            //this.log("DIRECT_UPDATE: item " + item + " with value " + value);
+            for (var i = 0; i < monitoring.length; i++) {
+            // iterate through all registered addresses
+                if (monitoring[i].item == item) {
+                    monitoring[i].lastValue = value; // or only invalidate here and read from SmartHomeNG again ?
+                }
+            }
+        }
+    },
+
 /** set methods used for creating callbacks
  *
  */
@@ -302,6 +319,7 @@ SmartHomeNGAccessory.prototype = {
             }
             this.log("[" + this.name + "] Setting " + shngitem + (inverted ? " (inverted)":"") + " boolean to %s", numericValue);
             this.shngcon.setValue(shngitem, numericValue);
+            this.direct_update(shngitem, numericValue);
             if (callback) callback();
         }
     },
@@ -321,6 +339,7 @@ SmartHomeNGAccessory.prototype = {
             }
             this.log("[" + this.name + "] Setting " + shngitem + " percentage to %s", numericValue);
             this.shngcon.setValue(shngitem, numericValue);
+            this.direct_update(shngitem, numericValue);
             if (callback) callback();
         }
     },
@@ -343,6 +362,7 @@ SmartHomeNGAccessory.prototype = {
             numericValue = numericValue / 3.6; //convert Angle to Percentage (0-100)
 
             this.shngcon.setValue(shngitem, numericValue);
+            this.direct_update(shngitem, numericValue);
             if (callback) callback();
         }
     },
@@ -359,6 +379,7 @@ SmartHomeNGAccessory.prototype = {
             }
             this.log("["+ this.name +"] Setting " + shngitem + " int to %s", numericValue);
             this.shngcon.setValue(shngitem, numericValue);
+            this.direct_update(shngitem, numericValue);
             if (callback) callback();
         }
     },
@@ -375,6 +396,7 @@ SmartHomeNGAccessory.prototype = {
             }
             this.log("["+ this.name +"] Setting " + shngitem + " float to %s", numericValue);
             this.shngcon.setValue(shngitem, numericValue);
+            this.direct_update(shngitem, numericValue);
             if (callback) callback();
         }
     },