Receiving InfectionStatus .exposed after calling resetInfectionStatus

[alopezh]

Once a device has received the InfectionStatus .exposed we are trying to bring it back to .healthy status by calling the sdk function DP3TTracing.resetInfectionStatus()

Initially the device goes back to .healthy but after the app is closed and the sdk is initiallized again. func DP3TTracingStateChanged(_ state: TracingState) get the InfectionStatus .exposed with the same date as before.

This is a sumamry of the related logs:

2021-05-13T08:27:41+0200 debug ExpositionUseCase : New Tracing State --->
2021-05-13T08:27:41+0200 debug ExpositionUseCase : Status: exposed(days: [DP3TSDK.ExposureDay(identifier: BCEF6CC3-025B-4657-AFCB-8AAC9A1F9E49, exposedDate: 2021-05-12 00:00:00 +0000, reportDate: 2021-05-13 02:19:44 +0000, isDeleted: false)])
2021-05-13T08:27:41+0200 debug ExpositionUseCase : lastSync: Optional(2021-05-13 06:27:41 +0000)
2021-05-13T08:27:41+0200 debug ExpositionUseCase : tracingState active
2021-05-13T08:27:41+0200 debug ExpositionUseCase : <---
...
2021-05-13T08:27:41+0200 debug ExpositionCheckUseCase : Exposition outdated -->  resetInfectionStatus called
...
2021-05-13T08:27:41+0200 debug ExpositionUseCase : New Tracing State --->
2021-05-13T08:27:41+0200 debug ExpositionUseCase : Status: healthy
2021-05-13T08:27:41+0200 debug ExpositionUseCase : lastSync: Optional(2021-05-13 06:27:41 +0000)
2021-05-13T08:27:41+0200 debug ExpositionUseCase : tracingState active
2021-05-13T08:27:41+0200 debug ExpositionUseCase : <---
...
2021-05-13T09:25:17+0200 debug SetupUseCase : [DP3TSDK] retreiving status from SDK
2021-05-13T09:25:17+0200 debug SetupUseCase : [exposureNotificationTracer] calling ENMananger.setExposureNotificationEnabled true
2021-05-13T09:25:19+0200 debug SetupUseCase : didScheduleBackgrounTask
2021-05-13T09:25:21+0200 debug SetupUseCase : [exposureNotificationTracer] calling ENMananger.activate
...
2021-05-13T09:25:21+0200 debug ExpositionUseCase : New Tracing State --->
2021-05-13T09:25:21+0200 debug ExpositionUseCase : Status: exposed(days: [DP3TSDK.ExposureDay(identifier: BCEF6CC3-025B-4657-AFCB-8AAC9A1F9E49, exposedDate: 2021-05-12 00:00:00 +0000, reportDate: 2021-05-13 02:19:44 +0000, isDeleted: false)])
2021-05-13T09:25:21+0200 debug ExpositionUseCase : lastSync: Optional(2021-05-13 06:27:41 +0000)
2021-05-13T09:25:21+0200 debug ExpositionUseCase : tracingState active
2021-05-13T09:25:21+0200 debug ExpositionUseCase : <---

Regards

[stmitt]

what version of the SDK are you experiencing this issue with?

[alopezh]

The version we are using is 2.1.0

[stmitt]

resetInfectionStatus does currently not delete the exposure Days. If you use resetExposureDays all exposure days will be deleted from the local storage.

[alopezh]

We have used previously DP3TTracing.reset() that internally calls DP3TTracing.resetExposureDays() and the result is the same. Tracing state becomes healthy. We tried just resetting infection status because with this piece of code.

class ExposureNotificationMatcher: Matcher {
...
func receivedNewData(_ data: Data, now: Date = .init()) throws -> Bool {
        ...
                    updateExposureDays(with: windows, now: now)
        
                    if exposureDayStorage.getDays() != exposureDays {
                        // a new exposure was found
                        logger.log("finishing matching session with new exposure(s)")
                        return true
                    }
        
                    logger.log("finishing matching session with no new exposures")
        ...
}
...
}

We suposed the exposure days should be not deleted to keep the state healthy

Regards