Conditionally set entity/device state in scenes

[ss89]

Describe your request

I would like to be able to set up conditionals for whether a scene should actually set the device/entity to a given state.

Why the uncertainty?

I would've put this into a category "Automations & Scenes", but it doesn't exist

Use cases

Say I have a scene to activate the TV and set up lighting as wanted.

This is perfect most of the time. Except when the sun is up still.

I would like to keep the lights off when it is bright outside (e.g. use a binary sensor for when sun is up still).

What areas might this affect?

Scenes UI + Core functionality for processing scenes

Anything else?

No response

[frenck]

Scenes are not conditional, as they do not contain logic. They restore a given state.

When decision logic is involved, one should consider using scripts (which can also apply scenes, scene data, or directly control devices). If a certain trigger is involved that should activate the decision logic, it would become an automation.

../Frenck

[ss89]

I am aware of what scenes do NOW, that is why i created this discussion.

In my mind it looks more like this: The scene should ensure a room looks as intended given the available lighting.
However the sun (as the outside light) also plays a factor that HA could detect and use to ensure the scene always looks the same (however requiring different lighting setup still).

Does it make more sense now?

[BBE-FR]

It does, but that is not how scene works. If you start to incorporate script logic in scene, why not add triggers ? You will end up with automations at the end.

To say it differently:

• with no logic and only states => scene
  You can have 2 scenes "TV day" and "TV night" with different states and chose manualy which one to activate.

• with a bit of logic => script
  you can define a script "activate TV mode" with a test and call your scenes: if "daytime-day" set "TV day" scene, else set "TV night" scene.

• with a trigger => automation
  you can define an automation that will launch your script when you activate a boolean "TV mode" and manage the light as long as "TV mode" stays "on" and light up the light if the night appears...

Triggers:
  TV mode boolean ON
  daytime changes to "night"
  daytime changes to "day"
Conditions:
  TV mode "on"
actions:
  Launch script "activate TV mode"