Ability to define a switch as lux device

[mathiasbl]

Checklist

• [X] I have filled out the template to the best of my ability.
• [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• [X] This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

I've been using this amazing integration to control my covers but I want to go the next step to control them based on the lux value instead of weather predictions. However, I have a light sensor that doesn't output the lux measurement as a value but I must configure the treshholds in the device itself which just outputs on/off based on that.

It would be nice to also have to possibility to configure switches next to sensors as lux device in the integration.

Describe the solution you'd like

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Describe alternatives you've considered

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Additional context

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[basbruss]

That seems like a very niche application. One approach is to use a template sensor to convert that on/off state into actual values.

template:
  - sensor:
      - name: Lux Value
        state: >
          {{ iif(is_state('switch.lux','on'),2000,150) }}
        device_class: illumination
        unit_of_measurement: "lx"

with the assumption that the high threshold is 2000lx and 150lx is considered as low