broadcasting

<?php

use App\Models\Conversation;
use App\Models\User;
use Illuminate\Support\Facades\Broadcast;

class PresenceRegistry
  TTL = 30 # seconds a user counts as present without a heartbeat

  def initialize(room_id, redis: REDIS)
    @room_id = room_id
    @redis = redis

<%# Subscribe every viewer of this post to its broadcasts %>
<%= turbo_stream_from @post %>

<%# Update the acting user's button to reflect the toggle %>
<%= turbo_stream.replace dom_id(@post, :like_button) do %>
  <%= render "posts/like_button", post: @post %>

class LikesController < ApplicationController
  before_action :set_post

  def create
    @like = @post.likes.find_or_create_by(user: current_user)