defmodule ToweropsWeb.ErrorJSON do
  @moduledoc """
  This module is invoked by your endpoint in case of errors on JSON requests.

  See config/config.exs.
  """

  require Logger

  # Render 500 errors with generic message and request ID for support
  # Never expose internal error details, stack traces, or module names to clients
  def render("500.json", assigns) do
    # Log full error details server-side for debugging
    Logger.error("Internal server error",
      assigns: inspect(assigns),
      request_id: Logger.metadata()[:request_id]
    )

    # Return generic error to client with request ID for support tracking
    %{
      errors: %{
        detail: "An unexpected error occurred. Please contact support if this persists.",
        request_id: Logger.metadata()[:request_id]
      }
    }
  end

  # By default, Phoenix returns the status message from
  # the template name. For example, "404.json" becomes
  # "Not Found".
  def render(template, _assigns) do
    %{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
  end
end