Fix/2018 dont show ENError16

src/xcode/ENA/ENA/Source/AppDelegate.swift

@@ -62,7 +62,7 @@ extension AppDelegate {
 			switch didEndPrematurelyReason {
 			case let .noExposureWindows(error):
 				return makeAlertController(
-					noSummaryError: error,
+					noExposureWindowsError: error,
 					localizedDescription: didEndPrematurelyReason.localizedDescription,
 					rootController: rootController
 				)
@@ -83,21 +83,26 @@ extension AppDelegate {
 		}
 	}
 
-	private func makeAlertController(noSummaryError: Error?, localizedDescription: String, rootController: UIViewController) -> UIAlertController? {
+	private func makeAlertController(noExposureWindowsError: Error?, localizedDescription: String, rootController: UIViewController) -> UIAlertController? {
 
-		if let enError = noSummaryError as? ENError {
-			let openFAQ: (() -> Void)? = {
-				guard let url = enError.faqURL else { return nil }
-				return {
-					UIApplication.shared.open(url, options: [:])
-				}
-			}()
-			return rootController.setupErrorAlert(
-				message: localizedDescription,
-				secondaryActionTitle: AppStrings.Common.errorAlertActionMoreInfo,
-				secondaryActionCompletion: openFAQ
-			)
-		} else if let exposureDetectionError = noSummaryError as? ExposureDetectionError {
+		if let enError = noExposureWindowsError as? ENError {
+			switch enError.code {
+			case .dataInaccessible:
+				return nil
+			default:
+				let openFAQ: (() -> Void)? = {
+					guard let url = enError.faqURL else { return nil }
+					return {
+						UIApplication.shared.open(url, options: [:])
+					}
+				}()
+				return rootController.setupErrorAlert(
+					message: localizedDescription,
+					secondaryActionTitle: AppStrings.Common.errorAlertActionMoreInfo,
+					secondaryActionCompletion: openFAQ
+				)
+			}
+		} else if let exposureDetectionError = noExposureWindowsError as? ExposureDetectionError {
 			switch exposureDetectionError {
 			case .isAlreadyRunning:
 				return nil

src/xcode/ENA/ENA/Source/Scenes/ExposureDetection/ExposureDetectionViewController.swift

@@ -66,13 +66,19 @@ extension ExposureDetectionViewController {
 			self?.state.riskState = .risk(risk)
 			self?.updateUI()
 		}
+
 		consumer.didFailCalculateRisk = { [weak self] error in
 
 			// Ignore already running errors.
 			guard !error.isAlreadyRunningError else {
 				Log.info("[ExposureDetectionViewController] Ignore already running error.", log: .riskDetection)
 				return
 			}
+
+			guard error.shouldBeDisplayedToUser else {
+				Log.info("[ExposureDetectionViewController] Don't show error to user: \(error).", log: .riskDetection)
+				return
+			}
 
 			switch error {
 			case .inactive:
@@ -83,6 +89,7 @@ extension ExposureDetectionViewController {
 
 			self?.updateUI()
 		}
+
 		consumer.didChangeActivityState = { [weak self] activityState in
 			self?.state.activityState = activityState
 		}

src/xcode/ENA/ENA/Source/Scenes/Home/HomeInteractor.swift

@@ -102,6 +102,11 @@ final class HomeInteractor: RequiresAppDependencies {
 				return
 			}
 
+			guard error.shouldBeDisplayedToUser else {
+				Log.info("[HomeInteractor] Don't show error to user: \(error).", log: .riskDetection)
+				return
+			}
+
             switch error {
             case .inactive:
 				self.state.riskState = .inactive

src/xcode/ENA/ENA/Source/Services/Risk/Provider/RiskProviding.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import ExposureNotification
 
 typealias RiskProviderResult = Result<Risk, RiskProviderError>
 
@@ -33,6 +34,20 @@ enum RiskProviderError: Error {
 
 		return false
 	}
+
+	var shouldBeDisplayedToUser: Bool {
+		!isENError16DataInaccessible
+	}
+
+	private var isENError16DataInaccessible: Bool {
+		guard case let .failedRiskDetection(didEndPrematuralyReason) = self,
+			  case let .noExposureWindows(noExposureWindowsError) = didEndPrematuralyReason,
+			  let enError = noExposureWindowsError as? ENError else {
+			return false
+		}
+
+		return enError.code == .dataInaccessible
+	}
 }
 
 enum RiskProviderActivityState {