defmodule DaProductAppWeb.ReprintController do
  use DaProductAppWeb, :controller

  alias DaProductApp.Transactions

  def last(conn, params) do
    merchant_id = Map.get(params, "merchantId") || Map.get(params, "merchant_id")
    terminal_id = Map.get(params, "terminalId") || Map.get(params, "terminal_id")
    serial = Map.get(params, "serialNumber") || Map.get(params, "serial_number")

    if is_nil(merchant_id) or is_nil(terminal_id) do
      conn
      |> put_status(:bad_request)
      |> json(%{status: "error", message: "merchantId and terminalId are required"})
    else
      case Transactions.fetch_last_for(merchant_id, terminal_id, serial_number: serial) do
        {:ok, record} ->
          json(conn, %{status: "ok", record: record})

        {:not_found, _} ->
          conn
          |> put_status(:not_found)
          |> json(%{status: "not_found", message: "No records found on server"})

        {:error, reason} ->
          Logger.error("Reprint fetch failed: #{inspect(reason)}")

          conn
          |> put_status(:internal_server_error)
          |> json(%{status: "error", message: "Communication failed"})
      end
    end
  end
end