defmodule BeetRoundServerWeb.UserJSON do
  alias BeetRoundServer.Accounts.User

  @doc """
  Renders a list of users.
  """
  def index(%{users: users}) do
    %{data: for(user <- users, do: data(user))}
  end

  @doc """
  Renders a single user with token.
  """
  def show(%{user: user, token: encoded_token}) do
    %{data: %{email: user.email, id: user.id, token: encoded_token}}
  end

  def show(%{user: user}) do
    %{data: data(user)}
  end

  def show(%{changeset: changeset}) do
    # When encoded, the changeset returns its errors
    # as a JSON object. So we just pass it forward.
    %{errors: Ecto.Changeset.traverse_errors(changeset, &translate_error/1)}
  end

  def mail_status(%{status: status}) do
    %{data: status}
  end

  defp data(%User{} = user) do
    %{
      id: user.id,
      email: user.email
    }
  end

  defp translate_error({msg, opts}) do
    # You can make use of gettext to translate error messages by
    # uncommenting and adjusting the following code:

    # if count = opts[:count] do
    #   Gettext.dngettext(BeetRoundServerWeb.Gettext, "errors", msg, msg, count, opts)
    # else
    #   Gettext.dgettext(BeetRoundServerWeb.Gettext, "errors", msg, opts)
    # end

    Enum.reduce(opts, msg, fn {key, value}, acc ->
      String.replace(acc, "%{#{key}}", fn _ -> to_string(value) end)
    end)
  end
end