add: ignore for incidental entities warning

[Mariusthvdb]

usecase:
seasonal lighting..... have dismantled my Christmas lighting and, because I have those setup in my yaml via a group config, now get the following warning:

Deze fout is ontstaan door een aangepaste integratie.

Logger: custom_components.powercalc.sensor
Source: custom_components/powercalc/sensor.py:631
Integration: Powercalc (documentation, issues)
First occurred: 10:55:17 (1 occurrences)
Last logged: 10:55:17

Group state might be misbehaving because there was an error with an entity
Traceback (most recent call last):
  File "/config/custom_components/powercalc/sensor.py", line 631, in create_sensors
    child_entities = await create_sensors(
                     ^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/powercalc/sensor.py", line 683, in create_sensors
    raise SensorConfigurationError(exception_message)
custom_components.powercalc.errors.SensorConfigurationError: Could not resolve any entities in group 'Kerst sterren'

this is ofc correct, as the entities are no longer in the system, (disabled via the integration providing them)

Having said that, I do have the options set as:

powercalc:
  enable_autodiscovery: false
  ignore_unavailable_state: true
  unavailable_power: 0

so really expected that to not throw a warning at all? Simply set it to 0. Not sure what I would have expected for the binding of these powercalc entities (currently the are not available) whihc makes it impossible to see what the lights have done up to now....

Now I can comment that group inside the powercalc config, but it would be even easier if there were to be some config option taking care of that, and not throw the warning.

Not really sure how that could be done without failing a warning for entities that are actually causing a true fault, but hope some setting could be figured out.

I suppose I am not the only user with some of these temporary entities given the many discussion on light strips for Christmas ;-)

I feel the historic powercalc entities should not simply vanish because the entities themselves are no longer available.

[bramstroker]

It won't make any sense to not raise any warning anymore, as users are not informed about setup errors, or causes why the powercalc group sensor cannot be setup.

The error you get now is too harsh, so I will see how to improve that.
In current situation it's also an ERROR level log message you get which will pop up in the HA frontend.

I will see if I can log a clean warning in this case in the HA log. Warnings don't populate into the HA frontend. But when you actually check the logs you will at least see why the powercalc sensor is not working.

[bramstroker]

What does your YAML for the powercalc group look like?

[Mariusthvdb]

that is utterly simple:

#           via ZHA Skyconnect
            - create_group: Kerst sterren
              unique_id: powercalc_group_kerst_sterren
              include:
                wildcard: light.ster_*

but it is nested inside another nested group...

    - create_group: Alle lampen
      unique_id: powercalc_group_alle_lampen
      entities:

        - create_group: Light inside total
          unique_id: powercalc_group_lights_inside_total
          entities:

#           via DIRIGERA Homekit
            - entity_id: light.bol_lamp

#           via ZHA Skyconnect
            - create_group: Kerst sterren
              unique_id: powercalc_group_kerst_sterren
              include:
                wildcard: light.ster_*

etcetc

[Mariusthvdb]

I can see there should be a warning, if only to indicate to the user some of the configured entities can not be found. maybe an optional 'temporary_ignore' could be considered, to give the user control over these incidental entities?

[bramstroker]

@Mariusthvdb Fixed with #2014. Was also able to reproduce the harsh error you got with the stacktrace.

With these change only a clean warning will be logged like Could not resolve any entities in group 'Kerst sterren'

I'm not going to introduce a config setting for this kind of thing, to avoid excessive configurations and maintenance of that.

It will only log a single warning to the logs during startup which is perfectly fine imo.

[Mariusthvdb]

Thx.
Will the powercalc entities remain available?
(These entities did gather historic usage and that does not change because the configured entities temporarily are not available)