## About this PR:
Being one of those incorrigible fools who want to open and unlock stuff
using my watch, I thought of a way to improve security when calling a
HomeAssistant service from the Garmin App.
This change adds a PIN confirmation dialog that is displayed whenever a
`pin` property has been set in the `tap_action`. Because of the size of
the screen, PINs consist of a sequence of abritrary length using the
digits 1-4.
Due to public visibility of the dashboard config, a pin mask can be
configured in the app's settings to transcode the PIN on the watch for
additional security. Using a cipher for PIN encryption has been
discarded due to the complexity involved in generating the encrypted
PINs for the end user.
The PIN dialog is configured to allow up to 4 erraneous PIN inputs in 2
minutes, a 5th failure will lock the PIN dialog (for all actions) for 10
minutes. Entering a correct PIN will reset the failure count.
## Changes included in this PR:
- PIN confirmation screen
- called whenever a `pin` has been configured in a `tap_action`. This
overrides the `confirm` property. Users without a touchscreen will be
routed to the regular confirmation dialog.
- optional `pin_mask` configuration setting, which will be used to
transcode the digits of the PIN (see documentation change)
- german translation of the `pin_mask` label
- failed attemps and PIN lock are stored in application storage
- Addition of `pin` field to the JSON Schema
- Additions to the docs
Tested on a few devices in the simulator, tested and running as a beta
on a Venu 2 Sq Music.
## Disclaimer:
This is my first attempt at a Monkey C project.
I probably learned more from looking at the existing app than from the
sdk samples. Awesome work!
I added this mainly because I wanted a feature like that for myself,
thought it is a good thing to add and because I was interested in
developing for Garmin devices.
I would be glad if you like the idea and are open to review it and
include it in the app.
I have tried to use coding style and conventions from the existing
project as far as I could see them.
Solution to a race condition with starting updates and amendment to error message presentation on Webhook ID creation failure.
Co-Authored-By: Joseph Abbey <me@josephabbey.dev>
