Expired beacons fix.

[Aadeesh11]

Fixes: #20
Expected Behaviour:

• Show expired beacons at the very last in your beacons section.
• Cancel subscriptions (if subscriptions have already been setup) and not setup them up at all (if user opens an expired beacon).
• Show snackBar if user tries to join expired beacon.
• Hide the share button if beacon has expired.
• Stop user from joining expired beacon (Would be handled by backend)

[Aadeesh11]

Should the last(5th) be part of backend logic or frontend? Because if it is a part of frontend logic, then while joining we would need an extra network call to get beacon data(since we only know short-code at the time of joining).

@nb9960 please let me know on how to proceed from here.
Also please mention if any task has been left-out 😅.

[cfsmp3]

Should the last(5th) be part of backend logic or frontend?

Anything related to security / privacy / etc must be handled in the backend - you just can't trust the frontend :-)

So the backend should prevent joining an expired beacon, return some error, and then the frontend can capture that error and display it.

[Aadeesh11]

Should the last(5th) be part of backend logic or frontend?

Anything related to security / privacy / etc must be handled in the backend - you just can't trust the frontend :-)

So the backend should prevent joining an expired beacon, return some error, and then the frontend can capture that error and display it.

Ok understood, would create a new issue regarding this in the beacon-backend repository.

[Aadeesh11]

CI would pass once #42 gets merged.

[nb9960]

Also, can you change the beacon exit dialog when the beacon has expired? Currently, the message is: 'There are ${X - 1} followers and you are carrying the beacon. Do you want to terminate the hike?'. Change it to 'Are you sure you want to exit? or something similar' if beacon has expired.

[Aadeesh11]

Also, can you change the beacon exit dialog when the beacon has expired? Currently, the message is: 'There are ${X - 1} followers and you are carrying the beacon. Do you want to terminate the hike?'. Change it to 'Are you sure you want to exit? or something similar' if beacon has expired.

Would change that too.

[nb9960]

Thanks for the PR, merged! 🎉