import AuthSessionServiceInterface

/// A protocol for creating authentication persistence service instances.
///
/// This protocol defines the factory interface for creating properly configured
/// authentication persistence services with their required session service dependencies.
/// The factory pattern abstracts the complex initialization of persistence services
/// and enables dependency injection of different session service implementations.
///
/// Authentication persistence services handle secure storage and retrieval of OAuth
/// tokens and authentication state using the device's Keychain. Implementations
/// should configure the service with appropriate session services for state management.
///
/// ## Usage Example
/// ```swift
/// let factory: AuthPersistenceServiceFactoryProtocol = AuthPersistenceServiceFactory()
/// let service = factory.makeAuthPersistenceService(authSessionService: sessionService)
/// ```
public protocol AuthPersistenceServiceFactoryProtocol {

    /// Creates a new authentication persistence service instance.
    ///
    /// This method constructs a fully configured authentication persistence service
    /// with the provided session service. The persistence service handles secure
    /// storage of OAuth tokens and authentication state in the device's Keychain.
    ///
    /// The created service provides:
    /// - Secure token storage using Keychain Services
    /// - OAuth token lifecycle management (store, retrieve, remove)
    /// - Integration with session state management
    /// - Proper error handling for storage operations
    ///
    /// - Parameter authSessionService: The session service for managing authentication state.
    /// - Returns: A configured `AuthPersistenceServiceProtocol` instance ready for use.
    func makeAuthPersistenceService(
        authSessionService: any AuthSessionServiceProtocol
    ) -> AuthPersistenceServiceProtocol
}

public struct AuthPersistenceServiceFactory: AuthPersistenceServiceFactoryProtocol {

    // MARK: - Lifecycle

    public init() {}

    // MARK: - Public

    public func makeAuthPersistenceService(
        authSessionService: any AuthSessionServiceProtocol
    ) -> AuthPersistenceServiceProtocol {
        AuthPersistenceService(
            authSessionService: authSessionService
        )
    }
}