defmodule Mv.Membership.Validations.ValidateProperty do
  use Ash.Resource.Validation

  @impl true
  def init(opts) do
    if is_atom(opts[:value]) do
      {:ok, opts}
    else
      {:error, "attribute must be an atom!"}
    end
  end

  @impl true
  def validate(changeset, _opts, _context) do
    changeset = Ash.Changeset.load(changeset, [:property_type])
    property_type = changeset.data.property_type
    IO.inspect(property_type)
    required?   = property_type.required
    union_value = Ash.Changeset.get_attribute(changeset, :value)

    if required? and union_value in [nil, ""] do
      {:error, field: :value, message: "is required"}
    else
      :ok
    end
  end
end