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defmodule DemoWeb.LightLive do
  use DemoWeb, :live_view

  # 初期接続
  def mount(_params, _session, socket) do
    socket =
      socket
      |> assign(:light_bulb_status, "off")
      |> assign(:on_button_status, "")
      |> assign(:off_button_status, "disabled")

    {:ok, socket}
  end

  # 画面
  def render(assigns) do
    ~L"""
    <h1>The light is <%= @light_bulb_status %>.</h1>
    <button phx-click="on" <%= @on_button_status %>>On</button>
    <button phx-click="off" <%= @off_button_status %>>Off</button>
    """
  end

  # Onボタンの処理
  def handle_event("on", _value, socket) do
    socket =
      socket
      |> assign(:light_bulb_status, "on")
      |> assign(:on_button_status, "disabled")
      |> assign(:off_button_status, "")

    {:noreply, socket}
  end

  # Offボタンの処理
  def handle_event("off", _value, socket) do
    socket =
      socket
      |> assign(:light_bulb_status, "off")
      |> assign(:on_button_status, "")
      |> assign(:off_button_status, "disabled")

    {:noreply, socket}
  end
end

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  scope "/", DemoWeb do
    pipe_through(:browser)

    get("/", PageController, :index)

    # /light のパスを追加
    live("/light", LightLive)
  end