Change authenticationState to regular flow

Change authenticationState from conflatedCallbackFlow to regular
callbackFlow to prevent dropping values

Flag: NONE bug fix
Fixes: 355950083
Test: atest BiometricStatusRepositoryTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:51d4c66294c1d8eb6aff931d62fa784c0f277149)
Merged-In: I636eeec062801eba81cc123787430aaa8eb72f2c
Change-Id: I636eeec062801eba81cc123787430aaa8eb72f2c

packages/SystemUI/src/com/android/systemui/biometrics/data/repository/BiometricStatusRepository.kt

@@ -39,7 +39,6 @@ import com.android.systemui.biometrics.shared.model.AuthenticationReason
 import com.android.systemui.biometrics.shared.model.AuthenticationReason.SettingsOperations
 import com.android.systemui.biometrics.shared.model.AuthenticationState
 import com.android.systemui.common.coroutine.ChannelExt.trySendWithFailureLogging
-import com.android.systemui.common.coroutine.ConflatedCallbackFlow.conflatedCallbackFlow
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Application
 import com.android.systemui.keyguard.shared.model.AcquiredFingerprintAuthenticationStatus
@@ -49,6 +48,7 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.flow.filterIsInstance
@@ -85,7 +85,7 @@ constructor(
      *   onAcquired in [FingerprintManager.EnrollmentCallback] and [FaceManager.EnrollmentCallback]
      */
     private val authenticationState: Flow<AuthenticationState> =
-        conflatedCallbackFlow {
+        callbackFlow {
                 val updateAuthenticationState = { state: AuthenticationState ->
                     Log.d(TAG, "authenticationState updated: $state")
                     trySendWithFailureLogging(state, TAG, "Error sending AuthenticationState state")
@@ -169,7 +169,9 @@ constructor(
                         }
                     }
 
-                updateAuthenticationState(AuthenticationState.Idle(AuthenticationReason.NotRunning))
+                updateAuthenticationState(
+                    AuthenticationState.Idle(requestReason = AuthenticationReason.NotRunning)
+                )
                 biometricManager?.registerAuthenticationStateListener(authenticationStateListener)
                 awaitClose {
                     biometricManager?.unregisterAuthenticationStateListener(
@@ -180,23 +182,32 @@ constructor(
             .distinctUntilChanged()
             .shareIn(applicationScope, started = SharingStarted.Eagerly, replay = 1)
 
-    override val fingerprintAuthenticationReason: Flow<AuthenticationReason> =
+    private val fingerprintAuthenticationState: Flow<AuthenticationState> =
         authenticationState
             .filter {
-                it is AuthenticationState.Idle ||
-                    (it is AuthenticationState.Started &&
-                        it.biometricSourceType == BiometricSourceType.FINGERPRINT) ||
-                    (it is AuthenticationState.Stopped &&
-                        it.biometricSourceType == BiometricSourceType.FINGERPRINT)
+                it.biometricSourceType == null ||
+                    it.biometricSourceType == BiometricSourceType.FINGERPRINT
             }
+            .onEach { Log.d(TAG, "fingerprintAuthenticationState updated: $it") }
+
+    private val fingerprintRunningState: Flow<AuthenticationState> =
+        fingerprintAuthenticationState
+            .filter {
+                it is AuthenticationState.Idle ||
+                    it is AuthenticationState.Started ||
+                    it is AuthenticationState.Stopped
+            }
+            .onEach { Log.d(TAG, "fingerprintRunningState updated: $it") }
+
+    override val fingerprintAuthenticationReason: Flow<AuthenticationReason> =
+        fingerprintRunningState
             .map { it.requestReason }
             .onEach { Log.d(TAG, "fingerprintAuthenticationReason updated: $it") }
 
     override val fingerprintAcquiredStatus: Flow<FingerprintAuthenticationStatus> =
-        authenticationState
-            .filterIsInstance<AuthenticationState.Acquired>()
-            .filter { it.biometricSourceType == BiometricSourceType.FINGERPRINT }
-            .map { AcquiredFingerprintAuthenticationStatus(it.requestReason, it.acquiredInfo) }
+        fingerprintAuthenticationState.filterIsInstance<AuthenticationState.Acquired>().map {
+            AcquiredFingerprintAuthenticationStatus(it.requestReason, it.acquiredInfo)
+        }
 
     companion object {
         private const val TAG = "BiometricStatusRepositoryImpl"

packages/SystemUI/src/com/android/systemui/biometrics/shared/model/AuthenticationState.kt

@@ -27,6 +27,9 @@ import android.hardware.biometrics.BiometricSourceType
  * authentication.
  */
 sealed interface AuthenticationState {
+    /** Indicates [BiometricSourceType] of authentication state update, null in idle auth state. */
+    val biometricSourceType: BiometricSourceType?
+
     /**
      * Indicates [AuthenticationReason] from [BiometricRequestConstants.RequestReason] for
      * requesting auth
@@ -43,7 +46,7 @@ sealed interface AuthenticationState {
      *   message.
      */
     data class Acquired(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         override val requestReason: AuthenticationReason,
         val acquiredInfo: Int
     ) : AuthenticationState
@@ -59,7 +62,7 @@ sealed interface AuthenticationState {
      * @param requestReason reason from [BiometricRequestConstants.RequestReason] for authentication
      */
     data class Error(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         val errString: String?,
         val errCode: Int,
         override val requestReason: AuthenticationReason,
@@ -73,7 +76,7 @@ sealed interface AuthenticationState {
      * @param userId The user id for the requested authentication
      */
     data class Failed(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         override val requestReason: AuthenticationReason,
         val userId: Int
     ) : AuthenticationState
@@ -87,7 +90,7 @@ sealed interface AuthenticationState {
      * @param requestReason reason from [BiometricRequestConstants.RequestReason] for authentication
      */
     data class Help(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         val helpString: String?,
         val helpCode: Int,
         override val requestReason: AuthenticationReason,
@@ -96,9 +99,13 @@ sealed interface AuthenticationState {
     /**
      * Authentication state when no auth is running
      *
+     * @param biometricSourceType null
      * @param requestReason [AuthenticationReason.NotRunning]
      */
-    data class Idle(override val requestReason: AuthenticationReason) : AuthenticationState
+    data class Idle(
+        override val biometricSourceType: BiometricSourceType? = null,
+        override val requestReason: AuthenticationReason
+    ) : AuthenticationState
 
     /**
      * AuthenticationState when auth is started
@@ -107,7 +114,7 @@ sealed interface AuthenticationState {
      * @param requestReason reason from [BiometricRequestConstants.RequestReason] for authentication
      */
     data class Started(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         override val requestReason: AuthenticationReason
     ) : AuthenticationState
 
@@ -118,7 +125,7 @@ sealed interface AuthenticationState {
      * @param requestReason [AuthenticationReason.NotRunning]
      */
     data class Stopped(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         override val requestReason: AuthenticationReason
     ) : AuthenticationState
 
@@ -131,7 +138,7 @@ sealed interface AuthenticationState {
      * @param userId The user id for the requested authentication
      */
     data class Succeeded(
-        val biometricSourceType: BiometricSourceType,
+        override val biometricSourceType: BiometricSourceType,
         val isStrongBiometric: Boolean,
         override val requestReason: AuthenticationReason,
         val userId: Int