defmodule MicrowavepropWeb.Router do
  use MicrowavepropWeb, :router

  import MicrowavepropWeb.UserAuth
  import Oban.Web.Router
  import Phoenix.LiveDashboard.Router

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

  defp store_remote_ip(conn, _opts) do
    ip_str = conn.remote_ip |> :inet.ntoa() |> to_string()
    Plug.Conn.put_session(conn, :remote_ip, ip_str)
  end

  # Extract Cloudflare visitor geolocation headers (set by a Cloudflare
  # Managed Transform) and stash them in the session so LiveViews can use
  # them to center maps on the visitor's approximate location.
  defp store_cf_geo(conn, _opts) do
    lat = conn |> Plug.Conn.get_req_header("cf-iplatitude") |> List.first()
    lon = conn |> Plug.Conn.get_req_header("cf-iplongitude") |> List.first()

    with {lat_f, ""} when is_float(lat_f) <- lat && Float.parse(lat),
         {lon_f, ""} when is_float(lon_f) <- lon && Float.parse(lon) do
      conn
      |> Plug.Conn.put_session(:cf_lat, lat_f)
      |> Plug.Conn.put_session(:cf_lon, lon_f)
    else
      _ -> conn
    end
  end

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

  # Health check — no pipeline, minimal overhead
  get "/health", MicrowavepropWeb.HealthController, :check, log: false

  # Admin-only routes must come first so that literal segments like
  # `/beacons/:id/edit` are registered before the public `/beacons/:id`.
  scope "/", MicrowavepropWeb do
    pipe_through [:browser, :require_authenticated_user]

    live_session :admin, on_mount: [{MicrowavepropWeb.UserAuth, :require_admin}] do
      live "/beacons/:id/edit", BeaconLive.Form, :edit

      live "/admin/backfill", BackfillLive
      live "/admin/contact-edits", Admin.ContactEditLive

      live "/users", UserManagementLive.Index, :index
      live "/users/:id/edit", UserManagementLive.Edit, :edit
    end
  end

  scope "/", MicrowavepropWeb do
    pipe_through :browser

    get "/", PageController, :home

    live_session :public, on_mount: [{MicrowavepropWeb.UserAuth, :default}] do
      live "/submit", SubmitLive
      live "/map", MapLive
      live "/weather", WeatherMapLive
      live "/contacts", ContactLive.Index
      live "/contacts/map", ContactMapLive
      live "/contacts/:id", ContactLive.Show
      live "/path", PathLive
      live "/rover", RoverLive
      live "/algo", AlgoLive
      live "/about", AboutLive
      live "/privacy", PrivacyLive

      # Beacons: public read + submit (pending admin approval)
      live "/beacons", BeaconLive.Index, :index
      live "/beacons/new", BeaconLive.Form, :new
      live "/beacons/:id", BeaconLive.Show, :show
    end

    # Redirect old /qsos routes
    get "/qsos", PageController, :redirect_contacts
    get "/qsos/:id", PageController, :redirect_contact
  end

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

  scope "/" do
    pipe_through [:browser, :require_authenticated_user]

    live_dashboard "/admin/dashboard",
      metrics: MicrowavepropWeb.Telemetry,
      ecto_repos: [Microwaveprop.Repo],
      ecto_psql_extras_options: [long_running_queries: [threshold: "200 milliseconds"]],
      on_mount: [{MicrowavepropWeb.UserAuth, :require_admin}]

    oban_dashboard("/admin/oban", on_mount: [{MicrowavepropWeb.UserAuth, :require_admin}])
  end

  # Enable Swoosh mailbox preview in development
  if Application.compile_env(:microwaveprop, :dev_routes) do
    scope "/dev" do
      pipe_through :browser

      forward "/mailbox", Plug.Swoosh.MailboxPreview
    end
  end

  ## Authentication routes

  scope "/", MicrowavepropWeb do
    pipe_through [:browser, :redirect_if_user_is_authenticated]

    get "/users/register", UserRegistrationController, :new
    post "/users/register", UserRegistrationController, :create
  end

  scope "/", MicrowavepropWeb do
    pipe_through [:browser, :require_authenticated_user]

    get "/users/settings", UserSettingsController, :edit
    put "/users/settings", UserSettingsController, :update
    get "/users/settings/confirm-email/:token", UserSettingsController, :confirm_email

    post "/users/beacon-monitors", BeaconMonitorController, :create
    delete "/users/beacon-monitors/:id", BeaconMonitorController, :delete
  end

  scope "/", MicrowavepropWeb do
    pipe_through [:browser]

    get "/users/log-in", UserSessionController, :new
    get "/users/confirm/:token", UserSessionController, :confirm
    post "/users/log-in", UserSessionController, :create
    delete "/users/log-out", UserSessionController, :delete
  end
end