ELKO Super TR - set local_temperature based on selected sensor

[chdefrene]

I have some ELKO Super TR thermostats, and they work excellent with zigbee2mqtt. However, while the thermostat has a setting for determining what temperature sensor to use (air or floor), the exposed climate component will always use the air sensor. The floor sensor temperature is only available as a separate, exposed value. Since I use the floor sensor, this causes some confusion when using the thermostat inside Home Assistant.

I'm investigating how to get the climate component to display local_temperature based on what sensor is selected on the thermostat.
I did manage to change the climate component to always use the floor sensor value by creating an external converter that looks something like this:

const thermostat = {
  zigbeeModel: ['Super TR'],
  vendor: 'ELKO',
  ...
}

const climate = thermostat.exposes.find(({type}) => type === 'climate');

climate.features.find(({name}) => name === 'local_temperature').property = 'floor_temp';

As for making this into a more general solution, it seems I would need to obtain a reading of the sensor attribute first, and then using this to determine the value of the local_temperature property. But I'm not understanding how to accomplish this inside the devices/elko.js file.

Can anyone provide some assistance?

[chdefrene]

Fixed by Koenkk/zigbee-herdsman-converters#8313