What is the maximum value for authenticationValidityDurationSeconds?

[abdallah-odeh]

What is the maximum value I can set for authenticationValidityDurationSeconds?
I set it to 60 minutes but it's not working as expected! when this hour is over the user is not prompted to authenticate

my use case:
I am using biometric_storage to store the refresh_token for the user
my access token age is 15 minutes, & setting the authenticationValidityDurationSeconds to -1 will prompt the user to authenticate in every transaction (read & write)
and it is very bad UX to be using the app & suddenly a fingerprint prompt!
so what I have done is making the duration an hour, and during this hour I have my logic to check if the user really must authenticate or not
when the hour is over, I don't prompt anything and rely on this plugin, but the data is read & retrieved without a biometric authentication!

so

1. What is the maximum duration for authenticationValidityDurationSeconds?
2. Is there a better way to implement this using only this plugin? (making the biometric prompt depending on the transaction not the storage file)?

thanks in advance