This reverts commit 6054bf57.

* Added first set of country flags

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added first implementation of Submission Country Selection Screen. (Currently not part of nav graph).
Moved stuff inside of submission package into subpackages

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added missing changes to nav_graph file

* Test Menu options for Country selection and Measurement (EXPOSUREAPP-2229) (#1086)

* Implement country filter (#2229)

* Implement measure for Risk calculation and Key Retrieval (#2229)

* Some code cleanup for measureRiskLevelAndKeyRetrieval

* Some code cleanup (#2229)

* Implement usage of AppConfig usage for country codes (#2229)

* change CURRENT_COUNTRY val to var

* Suppress "LongMethod" warning (#2229)

* Adjust unit tests to respect new country filter

* Align with backend for app config country property name

* Display total file size of keys in results (#2229)

* Fix linting issue

* Update strings.xml files

* Do refactoring and some code clean up

* Move RiskLevel and Key retrieval measurement in own class

* Move code in logical classes. Remove translation in test fragment

* Fix linting and Unit tests

* Remove 3hour boolean check from debug class.

* Refactor CountryWrapper and missing dates check.

* Fix linting and Unit tests

* Add Unit test for getMissingDates

* Code cleanup

* Hide keyboard on action

* Extend statistics for api submission

* Set callback to null after invoked

Co-authored-by: Mert Safter <mert.safter@sap.com>
Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>

* Overhaul of DiagnosisKey related Download and Caching Mechanisms (EXPOSUREAPP-2469) (#1136)

* Rework of keyfile download and caching.
* Supports interop
* More modular for better testing and build flavour based behavior adjustments
* More resilient handling of failed downloads
* Preperations for future hourly download and serverside checksums

TODO: Finish unit tests, keycache migration and cache health check

* First batch of unit tests and some fixes for incorrect behavior that the tests surfaced.

* Added unit tests for the KeyCacheRepository

TODO: Tests for downloader and migration.

* Implemented POC for migration old key files.

* Fixed legacy file migration and cleanup, improved logging.

* Added unit tests for legacy key file migration.

* Add fallback for different file hashes in the header.

* Yes kLint, we know it's a long method,
but for this it's better to read it in one block vs jumping to extra methods.

* More linting issues, adjusting project code style prevent a few of these in the future.

* Added missing unit tests for `KeyFileDownloader` and fixed faulty behavior that was noticed during testing.

* CRUD (instrumentation) test for `KeyCacheDatabase`

* Remove unused `FileStorageHelper` and related constants+tests.

* Fix last3Hours unit test in deviceRelease mode, we need to explicitly enable debug for these tests.

* Until we have more information about the hashsum's format in the header, default to `ETag

* Split app config server API from diagnosis key download API,
and reintroduce caching for the app config download.

* Add test to check that the cache is used on flaky connections.

* Code changes based on PR comment, part #1.

* Code fluff, formatting.

* Handle download errors correctly.

* Refactoring:
* Remove unnecessary `currentDate` we always start with the newest date from the servers index.
* Make a specialised class for header validation

* Let legacy cache migration abort early, depending on whether the key dir exists.

* If we can't create the base directory for the key repo, throw an exception.

* Delete cache entry if a download fails.

* Fixed test regression due to refactoring.

* Consolidate staleness check into `getStale`

* Consolidate clean up for failed downloads into the download method.
Added tests to check that we delete the keycache entry if the download fails (which we didn't for hours :O!)

* Because the hour-mode uses caching too, we add an explicit button to the test menu that clears the cache.

* Add comment with reference to ticket regarding follow up on the other headers.

* Move expected storage size per country into a named constant.

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>

* Implementation of tests for the interoperability countries selection screen (EXPOSUREAPP-2439) (#1140)

* Added initial set of viewModel tests

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Fail tests on unexpected null.

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>

Co-authored-by: Kolya Opahle <k.opahle@sap.com>
Co-authored-by: apopovsap <66370584+apopovsap@users.noreply.github.com>
Co-authored-by: Mert Safter <69803294+MertSafter@users.noreply.github.com>
Co-authored-by: Mert Safter <mert.safter@sap.com>
Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Matthias Urhahn <darken@darken.eu>

* Added requestPadding property to all VerficationService requests

* Added fake calls to the WebReqeustBuilder

* 🚧

 initial draft to enable plausible deniability

* Switched from SubmissionConstants to KeyType enum everywhere

* basic playbook implementation with fake and real requests

* Playbook
- ensure request pattern for playbooks is always the same

VerificationService
- apply padding to ensure equal request size (header & body)

SecurityHelper
- extract hash256 to HashHelper. This simplifies tests that use only the hash function (and therefore don´t need to initialize SecurityHelper and its dependencies)

* Implemented random chance of dummy playbook execution on app open

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Playbook
- ignore exceptions for fake requests

SubmissionService
- add padding header to fake request for same header size

WebRequestBuilder
- include fake keys in upload (🏗️

)

* DiagnosisKeyService: removed (low value & difficult to test)

SubmissionService & SubmitDiagnosisKeysTransaction
- inline playbook & backgroundNoise property to prevent issues during testing

DiagnosisKeyConstantsTest, SubmissionServiceTest, SubmitDiagnosisKeysTransactionTest & SubmissionViewModelTest
- adjusted to changes

* Dummy playbook will now be repeated and delayed randomly

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Linting

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Initial Code for background noise worker

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* First implementation of noise background worker

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Linting

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* PlaybookImpl
- ensure that fake requests are executed when real requests fail

SubmissionService & VerificationService
- adjust header name for padding

WebRequestBuilder
- add padding to dummy submission

* BackgroundNoise is now trigger-only

PlaybookImpl
- include follow-up executions after every playbook
- logging

SubmissionViewModel.kt, SubmissionService.kt, SubmitDiagnosisKeysTransaction.kt, MainActivity.kt, BackgroundNoisePeriodicWorker.kt, DiagnosisTestResultRetrievalPeriodicWorker.kt
- propagate context for coroutine

VerificationService
- ensure body size of 1000

* WebRequestBuilder.kt
- adjust fake key generation

PlaybookImplTest.kt
- remove unused server.enqueue

SubmissionService.kt 6 SubmitDiagnosisKeysTransaction.kt
- remove commented out code

* revert temporary changes to SubmissionResultPositiveOtherWarningFragment.kt

* Background job scheduling implemented

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* - adjust fake key size
- remove temporary comment

* Moved build work calls to own file to fix linting

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* - initialize coroutine scope within the playbook, revert passing it from outside
- remove experimental test dependency for coroutines

* - use single endpoint per server for fake requests
- reduce request size from 1000 to 250 for the verification server
- include dummy registration token in fake request to fulfill verification on server side
- prepare for randomized count of submitted keys
- always include headers cwa-authorization & cwa-header-padding for submission server

* - simplify empty header using constant

Co-authored-by: Kolya Opahle <k.opahle@sap.com>

Signed-off-by: d067928 <jakob.moeller@sap.com>

* changed local config that a high match can be generated via QR code, integrated it with the UI

* added the minRiskScore parameter to the ExposureConfiguration

* moved the persistence of the exposure summary in a dedicated worker to ensure execution

* added new backend app config and custom risk score calculation

* fixed static code checks and refactoring

* deleted possibility to customise app config in the tests

* added test fragment for risk level calculation

* static code check fixes

* refactored risk level calculation and added tests

* added exception if calculated risk score is above the max of the high risk score class