defmodule ToweropsWeb.GraphQL.Resolvers.Activity do
  @moduledoc "GraphQL resolvers for activity feed."

  alias Towerops.ActivityFeed

  def list(_parent, args, %{context: %{organization_id: org_id}}) do
    opts = maybe_add_type([limit: Map.get(args, :limit, 50)], args[:type])

    items = ActivityFeed.list_org_activity(org_id, opts)
    {:ok, items}
  end

  def list(_parent, _args, _resolution), do: {:error, "Authentication required"}

  defp maybe_add_type(opts, nil), do: opts

  defp maybe_add_type(opts, type) do
    case safe_to_atom(type) do
      nil -> opts
      atom -> Keyword.put(opts, :types, [atom])
    end
  end

  defp safe_to_atom(str) do
    String.to_existing_atom(str)
  rescue
    ArgumentError -> nil
  end
end