Replace all "var" usage with const and/or let

climate/master-bedroom/shower-on.js

@@ -0,0 +1,27 @@
+const states = global.get('homeassistant.homeAssistant.states')
+const ac = states['input_boolean.master_bedroom_aircon_installed'].state
+const temp = global.get('tempStr')
+const threshold = states['input_number.master_bedroom_aircon_run_threshold'].state
+const nightTemp = states['input_number.master_bedroom_night_temp'].state
+const bedTemp = states['input_number.master_bedroom_bedtime_temp'].state
+const sleeping = states['input_boolean.master_bedroom_sleeping'].state
+
+if (ac === 'on') {
+    if (temp >= threshold) {
+        if (sleeping === 'on') {
+            msg.set = bedTemp
+            node.status({fill:"green",shape:"dot",text:"Shower Mode On: " + bedTemp})
+            return msg
+        } else {
+            msg.set = nightTemp
+            node.status({fill:"green",shape:"dot",text:"Shower Mode On: " + nightTemp})
+            return msg
+        }
+    } else {
+        node.status({fill:"red",shape:"ring",text:"Too Cold"})
+        return null
+    }
+} else {
+    node.status({fill:"red",shape:"ring",text:"A/C Not Installed"})
+    return null
+}