From 7fca05c8d81c89153e3a886c15df4ea74811d2a0 Mon Sep 17 00:00:00 2001
From: Sam Stenvall <sam.stenvall@nitor.com>
Date: Mon, 12 Feb 2024 19:39:25 +0200
Subject: [PATCH] Add setting switch for "defrosting allowed"

Closes #109
---
 CHANGELOG.md          | 1 +
 app/enervent.mjs      | 1 +
 app/homeassistant.mjs | 5 +++++
 app/modbus.mjs        | 8 ++++++++
 4 files changed, 15 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9804417..8365d9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 * Add optional sensors for control panel temperature, supply fan speed and exhaust fan speed (https://github.com/Jalle19/eda-modbus-bridge/issues/96)
 * Remove references to "flags", use "modes" everywhere instead
 * Use HTTP 500 instead of HTTP 400 for generic errors
+* Add settings switch for defrosting allowed (https://github.com/Jalle19/eda-modbus-bridge/issues/109)
 
 ## 2.7.1
 
diff --git a/app/enervent.mjs b/app/enervent.mjs
index af88528..dca5c83 100644
--- a/app/enervent.mjs
+++ b/app/enervent.mjs
@@ -35,6 +35,7 @@ export const AVAILABLE_SETTINGS = {
     'awayHeatingAllowed': 18,
     'longAwayCoolingAllowed': 21,
     'longAwayHeatingAllowed': 20,
+    'defrostingAllowed': 55,
 }
 
 export const ALARM_REGISTERS_START = 385
diff --git a/app/homeassistant.mjs b/app/homeassistant.mjs
index 377c575..89a36a3 100644
--- a/app/homeassistant.mjs
+++ b/app/homeassistant.mjs
@@ -293,6 +293,11 @@ export const configureMqttDiscovery = async (modbusClient, mqttClient) => {
             // Not supported by some units
             { 'enabled_by_default': automationType !== AUTOMATION_TYPE_LEGACY_EDA }
         ),
+        'defrostingAllowed': createSettingSwitchConfiguration(
+            configurationBase,
+            'defrostingAllowed',
+            'Defrosting allowed'
+        ),
     }
 
     // Binary sensors for alarms
diff --git a/app/modbus.mjs b/app/modbus.mjs
index 7a152be..85ab9f0 100644
--- a/app/modbus.mjs
+++ b/app/modbus.mjs
@@ -220,6 +220,13 @@ export const getSettings = async (modbusClient) => {
         }
     }
 
+    // Defrosting allowed
+    result = await mutex.runExclusive(async () => tryReadCoils(modbusClient, 55, 1))
+    settings = {
+        ...settings,
+        'defrostingAllowed': result.data[0],
+    }
+
     return settings
 }
 
@@ -263,6 +270,7 @@ export const setSetting = async (modbusClient, setting, value) => {
         case 'awayHeatingAllowed':
         case 'longAwayCoolingAllowed':
         case 'longAwayHeatingAllowed':
+        case 'defrostingAllowed':
             coil = true
             break
     }