Add support for alarm control panels in android auto

[dshokouhi]

Summary

Fixes: #3710

We will show Alarm Control Panels as a supported domain because they are important enough IMO.

Only if we detect a code is not required will a user be able to click on it, otherwise it will be non-actionable.

Given the use case we will either disarm or arm_away the alarm, the other arming options don't feel as if they would be used as much as armed_away

Used the same icons from the frontend: https://github.com/home-assistant/frontend/blob/858dd738684b604b7861ccb9e2c449f9280f8723/src/common/entity/alarm_panel_icon.ts#L15-L36

Screenshots

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#968

Any other notes

After going on the first road trip this weekend the question of "did we turn on the alarm" came while in the car and it would've been easy to answer that 😂

[jpelgrom]

Looking at the card example, it suggests that it is possible for an alarm to only support disarm and arm_home. Should there be a check on supported features to handle this?

[dshokouhi]

Looking at the card example, it suggests that it is possible for an alarm to only support disarm and arm_home. Should there be a check on supported features to handle this?

the docs around configuring the domain do not show you can turn off the other alarm types.

https://www.home-assistant.io/integrations/manual
https://www.home-assistant.io/integrations/alarm_control_panel.template

[dshokouhi]

I see what you mean there is indeed supported feature support here, so will add a check to make sure the entity properly supports the action.

https://github.com/home-assistant/core/blob/dev/homeassistant/components/alarm_control_panel/const.py#L28

[jpelgrom]

One more thing: the friendlyState function should be updated to support the alarm specific states.

[dshokouhi]

One more thing: the friendlyState function should be updated to support the alarm specific states.

done :)

[jpelgrom]

Code looks good to me, but I'm not able to test this live

[dshokouhi]

Code looks good to me, but I'm not able to test this live

for testing I had 2 panels up. 1 with a code and the other without a code. I could only test using the Manual alarm control panel