TTS greeting when Pete enters home, and home becomes occupied

[pa-wills]

Structure:

• "Welcome home Pete."
• "Home mode is now active."
• "The home had been unoccupied since ...."
• "The motion sensors did not trip while you were gone." / "Alert - the motion sensors tripped while the house was unoccupied."
• "The last health check ran at 4am, and the result was green." / "Alert - this morning's health check returned red."

This is a good solid start.

[pa-wills]

Implementation / design thoughts:

• I think we need a new state, which would signify that I have arrived home, that i am first home, but I have yet to enter. The precondition would be that the house was already either in Away or Extended Awway.
• Upon entering that state - we would compute the above briefing.
• Then there would be a trigger. Ideally one of the two doors opening, and then the motion sensor tripping, or some combination thereof. This part could be a bit tricky and may need some tuning to get right.

[pa-wills]

Hmmm, reviewing the existing code - I already have a robust way to get the House into "Just Arrived". So, trigger off this transition and then check whether I am home and Emma is not.

Upon that Just Arrived and Pete being the one arriving home - activate the state - which we will call welcomeHomeBriefingArmed.

A callback handler for that ought to create the briefing text, ready for TTS. And then trigger a downstream callback that waits for the combination of entry sensors to trip (which we may simplify with a Group).

Upon that secondary callback being tripped - we invoke the TTS, and then set welcomeHomeBriefingArmed to False, and reset back to where we were when the house was empty.