defmodule ShardWeb.IdentityController do
  use ShardWeb, :controller

  def view(conn, _params) do
    render conn, "view.html"
  end

  def update(conn, params) do
    pid = SApp.Identity.find_proc(conn.assigns.pk)
    info = GenServer.call(pid, :get_info)
    info = %{info | nick: params["nick"]}
    GenServer.call(pid, {:set_info, info})
    redirect conn, to: identity_path(conn, :view)
  end

  def switch(conn, params) do
    case Base.decode16(params["pk"]) do
      {:ok, pk} ->
        if Shard.Keys.have_sk? pk do
          conn
          |> put_session(:pk, pk)
          |> redirect(to: identity_path(conn, :view))
        else
          conn
          |> put_flash(:error, "No secret key found")
          |> render("view.html")
        end
      _ ->
        conn
        |> put_flash(:error, "Bad argument")
        |> render("view.html")
    end
  end

  def create(conn, _params) do
    pk = Shard.Keys.new_identity
    conn = put_session(conn, :pk, pk)
    redirect conn, to: identity_path(conn, :view)
  end
end