Add "report" geo coordinates for case, contact, visit, task [2]

[MartinWahnschaffe]

• add ReportLat, ReportLon to case, contact, event and visit (api, backend, app)
• add ClosedLat, ClosedLon to task (api, backend, app)
• update data dictionary
• fill fields based on phones GPS data
• find a way to update the coordinates without messing up the save system/delaying further usage of the app
• discuss what to do if these entities are created on a non-mobile device (e.g. by a supervisor) or the required permissions are not granted on the phone
• test whether entity creation works
• repair unit tests

Fake GPS location should allow us to test this in development. For testing within Android Studio, the emulator provides functionalities to set the phone's geo location.

[MateStrysewske]

Problems that we need to take into account:

• App could be closed before a location update is retrieved (in which case the onLocationChanged listener method will never be called) -> this could happen in situations where the network/GPS connection is very unstable
• GPS could be turned off while creating a new case
• Users could reject the location permission request
• Cases could be created by a supervisor from within the web app

[MartinWahnschaffe]

Solutions:

• check GPS feature availability on startup of sormas - refuse if no gps available
• poll GPS every 5 minutes
• use last gps coordinates when a new case etc. is created and the coordiantes aren't older than 15 minutes

[MateStrysewske]

• request GPS access permission on startup
• remove network provider from LocationService