State ON for climate entities

[anarion80]

I think there is a potential bug in how climate entities state is determined - or it might be a 'feature' of my climate integration (https://github.com/mariusz-ostoja-swierczynski/tech-controllers).

From HA docs:

hvac_mode - The current operation (e.g. heat, cool, idle). Used to determine state.

while:

hvac_action - The current HVAC action (heating, cooling)

So climate entity state is not really current state.... And all my climate entities (with hvac_mode === heat) are shown as ON in HA Fusion and there is no difference at all when they are Idle or actually currently heating.

I think for climate entities the actual state for the button should be determined from hvac_action.

Perhaps the following:

Name	Description
HVACMode.HEAT	The device is set to heat to a target temperature.
HVACMode.COOL	The device is set to cool to a target temperature.
HVACMode.HEAT_COOL	The device is set to heat/cool to a target temperature range.
HVACMode.AUTO	The device is set to a schedule, learned behavior, AI.
HVACMode.DRY	The device is set to dry/humidity mode.
HVACMode.FAN_ONLY	The device only has the fan on. No heating or cooling taking place.

should be removed from onStates store and some specific condition added to https://github.com/matt8707/ha-fusion/blob/main/src/lib/Main/Button.svelte to determine climate state.

I can take a stab at a PR if this is real issue (not limited to my old integration).