[FR] Sentence Trigger

[contagon]

For all the new voice assistant stuff being developed currently, it'd be awesome if sentence triggers made their way to pyscript. Something like this would be awesome,

@sentence_trigger("activate dance mode")
def dance_mode():
    dance_lights.turn_on()
    return "dance like no one is watching!"

where the return value is the "conversation response" and spoken by the triggered voice assistant.

I had planned to give this a try once I did the easier webhook triggers (in #592), but handling the return response ended up not as straightforward as I had expected and I frankly haven't found the time. Happy to collaborate if someone wants to tackle this or do it together. I think we could track any progress that happens here if @craigbarratt is open to a PR :)

Note, this is also similar to the request in discussion #591.

[ALERTua]

@craigbarratt this one is for you :)

[craigbarratt]

This would be an awesome feature! I would most definitely merge a well-written PR that supports this.

Could the trigger include something like wildcards, which could be any word(s) that are passed as parameters to the function? That would make it a lot more flexible, since you could provide verbal parameters to the trigger. I'm not sure if the voice assistant code would support that.

[contagon]

I think wildcards would definitely be doable - mostly since HA already supports them as part of the sentence trigger. I'd imagine we can hook into that. The docs refer to them as "slots".

I imagine we could get it to work as,

@sentence_trigger("turn on the lights in {room}")
def turn_on_room(slots):
    if slots.room == "kitchen":
          ...
    return f"turned on lights in {slots.room}"

or separate each wildcard into a function parameter could work as well.

[Bjaux]

I'd absolutely love to have this, my Voice PE just arrived and I thought about routing maybe just all sentences I have from a single automation to the same pyscript function and continuing from there, but that seems like quite a workaround (and if I can't do magic quite limited with the slot stuff). After a quick glance at the trigger code inside pyscript I don't think I feel confident enough in my understandings of HA-Core workings and the pyscript architecture to write this extension for pyscript myself, but I would very much love and use it, if it arrives! :D 💯