defmodule ChronoscopeWeb.IndexLive do
  use ChronoscopeWeb, :live_view

  @topic "test"

  def mount(_params, _session, socket) do
    ChronoscopeWeb.Endpoint.subscribe(@topic)
    ChronoscopeWeb.Endpoint.broadcast_from(self(), @topic, "", %{temperature: 100})
    {:ok, assign(socket, :temperature, 100)}
  end

  def handle_event("inc_temperature", _params, socket) do
    updated = socket.assigns.temperature + 1
    ChronoscopeWeb.Endpoint.broadcast_from(self(), @topic, "", %{temperature: updated})
    {:noreply, assign(socket, :temperature, updated)}
  end

  def handle_info(%{topic: @topic, payload: state}, socket) do
    {:noreply, assign(socket, state)}
  end
end