defmodule ClipWeb.BoardLive do
  use ClipWeb, :live_view

  alias Clip.Accounts

  @impl true
  def render(assigns) do
    ~L"""
      <form phx-change="paste">
        <textarea type="text" name="snippet" data-updated-val="<%= @snippet %>" phx-hook="SnippetInput" autocomplete="off"><%= @snippet %></textarea>
      </form>
      Current content: <%= @snippet %><br>
      <button phx-click="normalize">-> 004930112</button>
    """
  end

  @impl true
  def mount(_params, session, socket) do
    user = Accounts.get_user_by_session_token(session |> Map.get("user_token"))
    Phoenix.PubSub.subscribe(Clip.PubSub, user.email)
    {:ok, assign(socket, snippet: "", current_user: user)}
  end

  defp normalize(pnumber, local_pref \\ "0351", country_pref \\ "0049") do
    pnumber
    |> String.replace(~r/^\s*\+/, "00")
    |> String.replace(~r/\D/, "")
    |> String.replace(~r/^00+/, "00")
    |> String.replace(~r/^(?=[1-9])/, local_pref)
    |> String.replace(~r/^0(?=[1-9])/, country_pref)
  end

  @impl true
  def handle_event("normalize", _, %{assigns: %{snippet: snippet, current_user: user}} = socket) do
    norm_snipp = normalize(snippet)
    Phoenix.PubSub.broadcast(Clip.PubSub, user.email, {:snippet_pasted, %{snippet: norm_snipp}})
    {:noreply, assign(socket, snippet: snippet)}
  end

  @impl true
  def handle_event("paste", %{"snippet" => snippet}, %{assigns: %{current_user: user}} = socket) do
    Phoenix.PubSub.broadcast(Clip.PubSub, user.email, {:snippet_pasted, %{snippet: snippet}})
    {:noreply, assign(socket, snippet: snippet)}
  end

  @impl true
  def handle_info({:snippet_pasted, %{snippet: snippet}}, socket) do
    {:noreply, assign(socket, snippet: snippet)}
  end
end