import Vapor

public struct UserSessionAuthenticator<SessionUser: ManagedUser>: AsyncSessionAuthenticator where SessionUser.SessionID == ExpiringUserId {
    public typealias User = SessionUser

    public func authenticate (sessionID: SessionUser.SessionID, for request: Request) async throws {
        if let user = try await request.db.withSQLConnection { connection in
            return try await SessionUser.authenticate (sessionID: sessionID, on: connection)
        } {
            request.logger.info ("Seeing user \(user)")
            request.auth.login (user)
            request.logger.info ("Saw user \(user)")
        }
    }
}