case.ex

defmodule CaseCondIf do
  defp set_required(set) do
    if !set.valid? do
      set
    else
      state = get_field(set, :__meta__).state
      IO.inspect(state)
      stage = set.stage
      # set_required(set, state, stage)
      case {stage, state} do
        {:new, :built} ->
          set

        {:submit, :built} ->
          type = get_field(set, :type)
          assoc = get_field(set, type)
          (assoc && put_assoc(set, type, required: assoc.required)) || set

        {:new, :loaded} ->
          type = get_field(set, :type)
          assoc = get_field(set, type)

          name =
            case assoc.required do
              true -> "Yes"
              false -> "No"
              nil -> "?"
            end

          schema =
            set.data
            |> Map.put(:required, assoc.required)
            |> Map.put(:required_name, name)

          put_in(set.data, schema)

        {:submit, :loaded} ->
          type = get_field(set, :type)
          required = get_field(set, :required)
          assoc = get_field(set, type, nil)
          assoc_change = change(assoc, %{required: required})
          put_change(set, type, assoc_change)
      end
    end
  end
end