defmodule PoexWeb.PadLive do
  alias Poex.Pads.{Document, DocumentDynamicSupervisor}
  alias Poex.Repo
  alias Poex.Utils

  use PoexWeb, :live_view

  def mount(%{"id" => "new"}, _session, socket) do
    # Create a new PadDocument
    {:ok, new_document} =
      Document.changeset(%Document{}, %{title: "Untitled"})
      |> Repo.insert()

    DocumentDynamicSupervisor.start_document_server(new_document)

    # Redirect to the new document with its ID
    {:ok, push_navigate(socket, to: ~p"/pad/#{new_document.id}", replace: true)}
  end

  def mount(%{"id" => id}, _session, socket) do
    %{
      id: id,
      title: title,
      contents: contents
    } = document = Repo.get!(Document, id)

    DocumentDynamicSupervisor.start_document_server(document)

    # init editor and assigns with latest state from doc
    {:ok, assign(socket, id: id, title: title, contents: contents |> Utils.atomize_keys())}
  end

  def handle_info(:new_document, socket) do
    {:noreply, push_navigate(socket, to: "/pad/new")}
  end
end