[PM-27047] Segregate out a BiometricsStateService into BitwardenKit

BitwardenKit/Core/Platform/Services/BiometricsStateService.swift

@@ -0,0 +1,21 @@
+// MARK: - BiometricsStateService
+
+/// A protocol for a service that provides state management functionality around biometrics.
+///
+public protocol BiometricsStateService: ActiveAccountStateProvider {
+    /// Get the active user's Biometric Authentication Preference.
+    ///
+    /// - Returns: A `Bool` indicating the user's preference for using biometric authentication.
+    ///     If `true`, the device should attempt biometric authentication for authorization events.
+    ///     If `false`, the device should not attempt biometric authentication for authorization events.
+    ///
+    func getBiometricAuthenticationEnabled() async throws -> Bool
+
+    /// Sets the user's Biometric Authentication Preference.
+    ///
+    /// - Parameter isEnabled: A `Bool` indicating the user's preference for using biometric authentication.
+    ///     If `true`, the device should attempt biometric authentication for authorization events.
+    ///     If `false`, the device should not attempt biometric authentication for authorization events.
+    ///
+    func setBiometricAuthenticationEnabled(_ isEnabled: Bool?) async throws
+}

BitwardenKit/Core/Platform/Services/Mocks/MockBiometricsStateService.swift

@@ -0,0 +1,29 @@
+import BitwardenKit
+import TestHelpers
+
+public class MockBiometricsStateService: BiometricsStateService {
+    public var activeAccountIdError: Error?
+    public var activeAccountIdResult = Result<String, Error>.failure(BitwardenTestError.mock("Mock error not set"))
+    public var biometricAuthenticationEnabledResult: Result<Bool, Error> = .success(false)
+    public var setBiometricAuthenticationEnabledError: Error?
+
+    public init() {}
+
+    public func getActiveAccountId() async throws -> String {
+        if let activeAccountIdError {
+            throw activeAccountIdError
+        }
+        return try activeAccountIdResult.get()
+    }
+
+    public func getBiometricAuthenticationEnabled() async throws -> Bool {
+        try biometricAuthenticationEnabledResult.get()
+    }
+
+    public func setBiometricAuthenticationEnabled(_ isEnabled: Bool?) async throws {
+        if let setBiometricAuthenticationEnabledError {
+            throw setBiometricAuthenticationEnabledError
+        }
+        biometricAuthenticationEnabledResult = .success(isEnabled ?? false)
+    }
+}

BitwardenShared/Core/Auth/Services/Biometrics/BiometricsRepository.swift

@@ -1,3 +1,4 @@
+import BitwardenKit
 import BitwardenSdk
 import LocalAuthentication
 
@@ -66,7 +67,7 @@ class DefaultBiometricsRepository: BiometricsRepository {
     var keychainRepository: KeychainRepository
 
     /// A service used to update user preferences.
-    var stateService: StateService
+    var stateService: BiometricsStateService
 
     // MARK: Initialization
 
@@ -80,7 +81,7 @@ class DefaultBiometricsRepository: BiometricsRepository {
     init(
         biometricsService: BiometricsService,
         keychainService: KeychainRepository,
-        stateService: StateService,
+        stateService: BiometricsStateService,
     ) {
         self.biometricsService = biometricsService
         keychainRepository = keychainService