<!DOCTYPE html>
<html lang="en">
<head>
<title>{{ group.preferredUsername }} group</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body {font-family: "Lato", sans-serif}
.mySlides {display: none}
</style>
<script>
    function doFollow (evt) {
      let user, acct, username, domain
      evt.preventDefault();
      document.getElementById('username-error').classList.add('w3-hide')
      document.getElementById('finger-error').classList.add('w3-hide')
      try {
        user = document.getElementById('handle').value
        ;[acct, username, domain] = /@?([^@]+)@(.+)/.exec(user)
      } catch (ignore) {
        document.getElementById('username-error').classList.remove('w3-hide')
        return
      }
      window.fetch(`https://${domain}/.well-known/webfinger?resource=acct:${acct}`, {
        method: 'get',
        mode: 'cors'
      })
        .then(res => res.json())
        .then(json => {
          const link = json.links.find(l => l.rel === 'http://ostatus.org/schema/1.0/subscribe')
          window.location.href = link.template.replace('{uri}', '{{ groupAcct }}')
        })
        .catch(err => {
          console.log(err);
          document.getElementById('finger-error').classList.remove('w3-hide')
        })
    }
</script>
</head>
<body>

<!-- Navbar -->
<div class="w3-top">
    <div class="w3-bar w3-black w3-card">&nbsp;
    </div>
  </div>
  
  <!-- Navbar on small screens (remove the onclick attribute if you want the navbar to always show on top of the content when clicking on the links) -->
  <div id="navDemo" class="w3-bar-block w3-black w3-hide w3-hide-large w3-hide-medium w3-top" style="margin-top:46px">
      &nbsp;
  </div>
<!-- Page content -->
<div class="w3-content" style="max-width:2000px;margin-top:46px">


  <div class="w3-container w3-content w3-center w3-padding-64" style="max-width:800px" id="band">
    <h2 class="w3-wide">{{ group.preferredUsername }}</h2>
    <p class="w3-opacity"><i>{{ group.summary }}</i></p>
    <p class="w3-left-align">To join {{ group.preferredUsername }}, enter your handle below and you'll be
      redirected back to this group's profile in your app where you can follow it.</p>
    <form class="w3-container">
      <label>Your account</label>
      <input id="handle" class="w3-input w3-center" placeholder="user@example.com" type="text">
      <button class="w3-btn w3-cyan w3-block w3-margin-top" onclick="doFollow(event)">Procced to follow</button>
    </form> 
    <div id="username-error" class="w3-hide w3-panel w3-pale-red w3-display-container w3-border">
        <span onclick="this.parentElement.classList.add('w3-hide')" class="w3-button w3-large w3-display-topright">×</span>
        <h3>Double check that username</h3>
        <p>e.g. you@yourhost.com</p>
    </div>
    <div id="finger-error" class="w3-hide w3-panel w3-pale-red w3-display-container w3-border">
        <span onclick="this.parentElement.classList.add('w3-hide')" class="w3-button w3-large w3-display-topright">×</span>
        <h3>Oops</h3>
        <p>Couldn't connect with your host.</p>
    </div>
  </div>

  <!-- The Tour Section -->
  <!-- <div class="w3-black" id="tour">
    <div class="w3-container w3-content w3-padding-64" style="max-width:800px">
      <h2 class="w3-wide w3-center">Recent group posts</h2>
  </div> -->

<!-- End Page Content -->
</div>

<!-- Footer -->
<footer class="w3-container w3-padding-64 w3-center w3-opacity w3-light-grey w3-xlarge">
  <a href="https://github.com/wmurphyrd/guppe"><i class="fa fa-github w3-hover-opacity"></i></a>
</footer>

</body>
</html>