fga-eps-mds/2019.2-Vsign

module Mutations
  class LoginUser < BaseMutation
    argument :email, String, required: true
    argument :password, String, required: true

    type Types::UserType

    def resolve(email:, password:)
      user = User.find_for_authentication(email: email)
      return nil if !user
      
      is_valid_for_auth = user.valid_for_authentication?{
        user.valid_password?(password)
      }
      return is_valid_for_auth ? user : nil
    end

  end
end