dry-rb/chat

Class.new(Dry::Validation::Schema) do
  key(:email).required

  key(:age) do
    none? | (int? & gt?(18))
  end

  key(:address).hash? do
    key(:city).required(min_size?: 3)

    key(:street).required

    key(:country).hash? do
      key(:name).required
      key(:code).required
    end
  end

  key(:phone_numbers).array? do
    each(&:str?)
  end
end