defmodule GcIndexRelayWeb.Router do
  use GcIndexRelayWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_live_flash
    plug :put_root_layout, html: {GcIndexRelayWeb.Layouts, :root}
    plug :protect_from_forgery
    plug :put_secure_browser_headers
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  scope "/", GcIndexRelayWeb do
    pipe_through :browser

    get "/", PageController, :home
  end

  get "/health", GcIndexRelayWeb.HealthController, :check

  scope "/api", GcIndexRelayWeb do
    pipe_through :api

    get "/", ApiController, :index
    get "/events", FilterController, :index
    post "/events/filter", FilterController, :query
    resources "/events", EventController, only: [:show, :create, :delete]
  end

  def swagger_info do
    relay_info = Application.fetch_env!(:gc_index_relay, :relay_info)

    title = Keyword.fetch!(relay_info, :name)
    version = Keyword.fetch!(relay_info, :version) |> to_string()
    base_desc = Keyword.fetch!(relay_info, :description)

    description =
      base_desc <>
        supported_nips_swagger_suffix(Keyword.get(relay_info, :supported_nips, [])) <>
        "\n\nRelay information document available at `GET /` with `Accept: application/nostr+json`."

    %{
      # `wss` reserved for a future NIP-01 WebSocket endpoint; REST-only for now.
      schemes: ["https", "wss"],
      info: %{
        version: version,
        title: title,
        description: description
      },
      consumes: ["application/json"],
      produces: ["application/json"]
    }
  end

  defp supported_nips_swagger_suffix([]), do: ""

  defp supported_nips_swagger_suffix(nips) do
    "\n\n**Supported NIPs:** " <> Enum.map_join(nips, ", ", &"NIP-#{&1}")
  end

  scope "/api/swagger" do
    forward "/", PhoenixSwagger.Plug.SwaggerUI,
      otp_app: :gc_index_relay,
      swagger_file: "swagger.json"
  end

  # Other scopes may use custom stacks.
  # scope "/api", GcIndexRelayWeb do
  #   pipe_through :api
  # end

  # Enable LiveDashboard in development
  if Application.compile_env(:gc_index_relay, :dev_routes) do
    # If you want to use the LiveDashboard in production, you should put
    # it behind authentication and allow only admins to access it.
    # If your application does not have an admins-only section yet,
    # you can use Plug.BasicAuth to set up some basic authentication
    # as long as you are also using SSL (which you should anyway).
    import Phoenix.LiveDashboard.Router

    scope "/dev" do
      pipe_through :browser

      live_dashboard "/dashboard", metrics: GcIndexRelayWeb.Telemetry
    end
  end
end