defmodule SyntropyWeb.Api.RuntimeConfigController do
  use SyntropyWeb, :controller

  alias Syntropy.{RuntimeConfig, Usage}
  alias SyntropyWeb.Api.ControllerHelpers

  @spec show(Plug.Conn.t(), map()) :: Plug.Conn.t()
  def show(conn, _params) do
    json(conn, %{data: RuntimeConfig.report()})
  end

  @spec update_provider(Plug.Conn.t(), map()) :: Plug.Conn.t()
  def update_provider(conn, params) do
    case RuntimeConfig.apply_provider(params) do
      {:ok, report} ->
        json(conn, %{data: report})

      {:error, errors} ->
        ControllerHelpers.invalid_request(
          conn,
          "Provider configuration is invalid.",
          Enum.map(errors, &%{message: &1})
        )
    end
  end

  @spec test_provider(Plug.Conn.t(), map()) :: Plug.Conn.t()
  def test_provider(conn, params) do
    json(conn, %{data: RuntimeConfig.test_provider(params)})
  end

  @spec update_limits(Plug.Conn.t(), map()) :: Plug.Conn.t()
  def update_limits(conn, params) do
    case Usage.apply_budget(Map.get(params, "usage_budget_tokens")) do
      {:ok, _budget} ->
        json(conn, %{data: RuntimeConfig.limits_report()})

      {:error, message} ->
        ControllerHelpers.invalid_request(conn, message, [])
    end
  end
end