Show notification only when something is wrong #47
Description
When everything works there is no need to bother a user with notifications. Show notifications only when something is really wrong.
Examples:
- Photos successfully uploaded -> no notification.
- Phone has no connectivity, photos are enqueued for upload -> no notification.
- Connectivity is available, but server is not responding -> try again silently and notify when it fails few times in a row.
- There was errors, but now it looks ok -> remove old notification, no need to disturb the user.
- Connection to server is ok, but server returns garbage -> warn user about bad setup.
- Connectivity available, but upload failed due to lost connection -> no notification, just try again later.