float setTemp_lastPublished;
float currSetTemp_lastPublished;
int heatingMode_lastPublished;
int preset_lastPublished;
bool turnHeatingOn_lastPublished;

void publishCurrentThermostatValues(bool force = false)
{
  // most values are only published if changed
  // call publishCurrentThermostatValues(true); to force publishing an update
  char tmp_topic_out[50];
  char ch_valuebuf[7];
  
  updateCurrentHeatingModeName();
  updateCurrentPresetName();

  char logBuf[101];
  sprintf_P(logBuf, "%s: %s=%u, %s=%u, %s=%2.1f, %s=%2.1f", PGMStr_thermostat, PGMStr_heatingMode, heatingMode, PGMStr_preset, preset, PGMStr_setTemp, setTemp, PGMStr_currentSetTemp, currSetTemp);
  sendLog(logBuf, LOGLEVEL_INFO);

  if (force || !confBas.saveToMqttRetained || setTemp != setTemp_lastPublished)
  {
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "setTemp");
    sprintf(ch_valuebuf, "%2.1f", setTemp);
    mqttclient.publish(tmp_topic_out, ch_valuebuf, confMqtt.mqtt_outRetain);

    if (confBas.saveToMqttRetained && setTemp != setTemp_lastPublished)
    {
      // MQTT retained save setTemp
      mqttclient.publish(mqtt_topic_in_setTemp, ch_valuebuf, true);
      char buf1[30];
      sprintf_P(buf1, "%s %s %2.1f", PGMStr_mqttRetainedSave, PGMStr_setTemp, setTemp);
      sendLog(buf1);
    }

    setTemp_lastPublished = setTemp;
    yield();
  }

  if (force || currSetTemp != currSetTemp_lastPublished || !confMqtt.mqtt_outRetain)
  {
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "currSetTemp");
    sprintf(ch_valuebuf, "%2.1f", currSetTemp);
    mqttclient.publish(tmp_topic_out, ch_valuebuf, confMqtt.mqtt_outRetain); 

    currSetTemp_lastPublished = currSetTemp;
    yield();
  }

  if (force || !confBas.saveToMqttRetained || heatingMode != heatingMode_lastPublished)
  {
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "mode");
    char ch_heatingMode[3];
    sprintf(ch_heatingMode, "%d", heatingMode);
    mqttclient.publish(tmp_topic_out, ch_heatingMode, confMqtt.mqtt_outRetain);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "modeName");
    mqttclient.publish(tmp_topic_out, currentModeName, confMqtt.mqtt_outRetain);


    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "modeHA");
    if(heatingMode == 0) mqttclient.publish(tmp_topic_out, "off", confMqtt.mqtt_outRetain);
    else if(heatingMode == 1) mqttclient.publish(tmp_topic_out, "heat", confMqtt.mqtt_outRetain);

    if (confBas.saveToMqttRetained && heatingMode != heatingMode_lastPublished)
    {
      // MQTT retained save setMode
      mqttclient.publish(mqtt_topic_in_setMode, ch_heatingMode, true);
      char buf1[30];
      sprintf_P(buf1, "%s %s %u", PGMStr_mqttRetainedSave, PGMStr_heatingMode, heatingMode);
      sendLog(buf1);
      
    }

    heatingMode_lastPublished = heatingMode;
    yield();
  }

  if (force || !confBas.saveToMqttRetained || preset != preset_lastPublished)
  {
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "preset");
    char ch_preset[3];
    sprintf(ch_preset, "%d", preset);
    mqttclient.publish(tmp_topic_out, ch_preset, confMqtt.mqtt_outRetain);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "presetName");
    mqttclient.publish(tmp_topic_out, currentPresetName, confMqtt.mqtt_outRetain);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "presetHA");
    if (preset == 0)
      mqttclient.publish(tmp_topic_out, "norm", confMqtt.mqtt_outRetain);
    else if (preset == 1)
      mqttclient.publish(tmp_topic_out, "red1", confMqtt.mqtt_outRetain);
    else if (preset == 2)
      mqttclient.publish(tmp_topic_out, "red2", confMqtt.mqtt_outRetain);

    if (confBas.saveToMqttRetained && preset != preset_lastPublished)
    {
      // MQTT retained save setPreset
      mqttclient.publish(mqtt_topic_in_setPreset, ch_preset, true);
      char buf1[30];
      sprintf_P(buf1, "%s %s %u", PGMStr_mqttRetainedSave, PGMStr_preset, preset);
      sendLog(buf1);
    }

    preset_lastPublished = preset;
    yield();
  }

  yield();

  // turnHeatingOn
  char ch_turnHeatingOn[5];
  unsigned int currOnOffTime;
  if (turnHeatingOn)
  {
    strcpy(ch_turnHeatingOn, "on");
    currOnOffTime = heatingOnTime;
  }
  else
  {
    strcpy(ch_turnHeatingOn, "off");
    currOnOffTime = heatingOffTime;
  }
  if (force || turnHeatingOn != turnHeatingOn_lastPublished)
  {
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heating");
    mqttclient.publish(tmp_topic_out, ch_turnHeatingOn, confMqtt.mqtt_outRetain);
    turnHeatingOn_lastPublished = turnHeatingOn;
  }

  //sendLog(F("heating ON"));
  //char logBuf[40];

  sprintf_P(logBuf, "%s: %s=%s (%s)", PGMStr_thermostat, PGMStr_heating, ch_turnHeatingOn, getTimeStringFromSeconds(currOnOffTime));
  sendLog(logBuf, LOGLEVEL_INFO);
  // END turnHeatingOn

  yield();

  char _buf[21];

  sprintf(_buf, "%lu", heatingOnTime);
  sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOnTime");
  mqttclient.publish(tmp_topic_out, _buf);

  sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOnTime_Hms");
  mqttclient.publish(tmp_topic_out, getTimeStringFromSeconds(heatingOnTime));
  yield();

  sprintf(_buf, "%lu", heatingOffTime);
  sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOffTime");
  mqttclient.publish(tmp_topic_out, _buf);
  sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOffTime_Hms");
  mqttclient.publish(tmp_topic_out, getTimeStringFromSeconds(heatingOffTime));

  publish_heatingLockTime();
  publish_heatingPauseTime();  

  yield();
}

void publish_heatingLockTime() {
  char _tmp_topic_out[50];
  char _buf[21];
  sprintf(_buf, "%i", heatingLockTime);
  sprintf(_tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingLockTime");
  mqttclient.publish(_tmp_topic_out, _buf);
}

void publish_heatingPauseTime() {
  char _tmp_topic_out[50];
  char _buf[21];
  sprintf(_buf, "%i", heatingPause);
  sprintf(_tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingPause");
  mqttclient.publish(_tmp_topic_out, _buf);
}


float currTemp_lastPublished;
int currHum_lastPublished;


void publishCurrentSensorValues(bool force = false)
{
  if (lastTempUpdate != 0 && (millis() - lastTempUpdate) < 120000)
  { // ensure values are not too old
    char tmp_topic_out[50];

    char temp_chararr[6];
    char hum_chararr[4];
    dtostrf(currTemp, 1, 1, temp_chararr);
    sprintf(hum_chararr, "%2i", currHum);

    // if (serialdebug)
    // {
    //   Serial.print(F("sensors: {"));
    //   Serial.print("'temp':");
    //   Serial.print(temp_chararr);
    // }

    if (force || currTemp != currTemp_lastPublished)
    {
      sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "temp");
      mqttclient.publish(tmp_topic_out, temp_chararr, confMqtt.mqtt_outRetain_sensors);
      currTemp_lastPublished = currTemp;
      yield();
    }

    // if (serialdebug)
    // {
    //   Serial.print(F(",'hum':"));
    //   Serial.print(currHum);
    // }

    if (force || currHum != currHum_lastPublished)
    {
      sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "hum");
      mqttclient.publish(tmp_topic_out, hum_chararr, confMqtt.mqtt_outRetain_sensors);
      yield();
    }

    dtostrf(currTemp_raw, 1, 1, temp_chararr);
    sprintf(hum_chararr, "%2i", currHum_raw);

    // if (serialdebug)
    // {
    //   Serial.print(F(",'temp_raw':"));
    //   Serial.print(temp_chararr);
    // }
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "temp_raw");
    mqttclient.publish(tmp_topic_out, temp_chararr);
    yield();
    // if (serialdebug)
    // {
    //   Serial.print(F(",'hum_raw':"));
    //   Serial.print(currHum_raw);
    // }
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "hum_raw");
    mqttclient.publish(tmp_topic_out, hum_chararr);
    yield();

    // if (serialdebug)
    //   Serial.println("}");

    char logBuf[101];
    sprintf_P(logBuf, "SENS: temp=%2.1f, hum=%u, tempRaw=%2.1f, humRaw=%u", currTemp, currHum, currTemp_raw, currHum_raw);
    sendLog(logBuf, LOGLEVEL_INFO);
  }
}

void publishCurrentPIRValue()
{
  char tmp_topic_out[50];
  sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "PIR");

  // PIR internal topic
  if (PIRSensorOn)
  {
    mqttclient.publish(tmp_topic_out, confAdd.mqtt_payload_pir_on);
    sendLog("SENS: PIR=ON", LOGLEVEL_INFO);
  }
  else
  {
    mqttclient.publish(tmp_topic_out, confAdd.mqtt_payload_pir_off);
    sendLog("SENS: PIR=OFF", LOGLEVEL_INFO);
  }

  // PIR additional topic
  if (strlen(confAdd.mqtt_topic_pir) >= 4)
  {
    if (PIRSensorOn)
    {
      mqttclient.publish(confAdd.mqtt_topic_pir, confAdd.mqtt_payload_pir_on);
    }
    else
    {
      mqttclient.publish(confAdd.mqtt_topic_pir, confAdd.mqtt_payload_pir_off);
    }
  }
}

void publishDeleteRetainedSavedStates()
{
  // after "save states to MQTT retained" is switched off
  // old retained messages are deleted by publishing an empty retained message to the topics
  // to be called from config when confBas.saveToMqttRetained was changed to false
  if (!confBas.saveToMqttRetained)
  {
    mqttclient.publish(mqtt_topic_in_setTemp, "", true);
    mqttclient.publish(mqtt_topic_in_setMode, "", true);
    mqttclient.publish(mqtt_topic_in_setPreset, "", true);

    sendLog("MQTT: deleted retained saved states", LOGLEVEL_INFO);

    publishCurrentThermostatValues(true); // force publish current values again
  }
}

void publishDeleteRetainedOutMessages()
{
  // after "MQTT-out retained" is switched off
  // old retained messages are deleted by publishing an empty retained message to the topics
  // to be called from config when confMqtt.mqtt_outRetain was changed to false
  if (!confMqtt.mqtt_outRetain)
  {
    char tmp_topic_out[50];
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "setTemp");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "currSetTemp");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "mode");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "modeName");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "modeHA");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "preset");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "presetName");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "presetHA");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heating");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOnTime");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "heatingOffTime");
    mqttclient.publish(tmp_topic_out, "", true);

    sendLog("MQTT: deleted retained messages (states)", LOGLEVEL_INFO);

    publishCurrentThermostatValues(true); // force publish current values again
  }
}

void publishDeleteRetainedOutMessages_sensors()
{
  // after "MQTT-out retained" is switched off
  // old retained messages are deleted by publishing an empty retained message to the topics
  // to be called from config when confMqtt.mqtt_outRetain was changed to false
  if (!confMqtt.mqtt_outRetain)
  {
    char tmp_topic_out[50];
    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "temp");
    mqttclient.publish(tmp_topic_out, "", true);

    sprintf(tmp_topic_out, "%s/%s", confMqtt.mqtt_topic_out, "hum");
    mqttclient.publish(tmp_topic_out, "", true);

    sendLog("MQTT: deleted retained messages (sensors)", LOGLEVEL_INFO);

    publishCurrentSensorValues(true); // force publish current values again
  }
}