WhatsApp multi-agent chat link

https://www.example.com/whatsapp.html

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="robots" content="noindex">
<title>Opening WhatsApp…</title>
<style>body{font:16px/1.5 system-ui,sans-serif;max-width:32rem;margin:15vh auto;padding:0 1rem;text-align:center}a{color:#128c7e}</style>
</head>
<body>
<p>Opening WhatsApp…</p>
<p id="fallback"></p>
<noscript>
<p>Choose who to chat with:</p>
<p><a href="https://wa.me/919876543210?text=Hi%20Asha%2C%20I%20found%20you%20through%20your%20website%20and%20have%20a%20question.">Asha</a></p>
<p><a href="https://wa.me/971501234567?text=Hi%20Omar%2C%20I%20found%20you%20through%20your%20website%20and%20have%20a%20question.">Omar</a></p>
<p><a href="https://wa.me/919123456789?text=Hi%20Priya%2C%20I%20found%20you%20through%20your%20website%20and%20have%20a%20question.">Priya</a></p>
</noscript>
<script>
(function () {
  var agents = [
    { name: "Asha", number: "919876543210", weight: 1 },
    { name: "Omar", number: "971501234567", weight: 1 },
    { name: "Priya", number: "919123456789", weight: 1 }
  ];
  var message = "Hi {name}, I found you through your website and have a question.";
  var sticky = true;
  var key = "wa-agent";

  function pickAgent() {
    if (sticky) {
      try {
        var saved = localStorage.getItem(key);
        for (var i = 0; i < agents.length; i++) if (agents[i].number === saved) return agents[i];
      } catch (e) {}
    }
    var total = 0;
    for (var j = 0; j < agents.length; j++) total += agents[j].weight;
    var r = Math.random() * total;
    var pick = agents[agents.length - 1];
    for (var k = 0; k < agents.length; k++) {
      r -= agents[k].weight;
      if (r < 0) { pick = agents[k]; break; }
    }
    if (sticky) { try { localStorage.setItem(key, pick.number); } catch (e) {} }
    return pick;
  }

  function chatUrl(agent) {
    var text = message.replace(/\{name\}/g, agent.name);
    return "https://wa.me/" + agent.number + (text ? "?text=" + encodeURIComponent(text) : "");
  }

  var agent = pickAgent();
  var url = chatUrl(agent);
  var link = document.createElement("a");
  link.href = url;
  link.textContent = "Tap here to chat with " + agent.name;
  var p = document.getElementById("fallback");
  p.appendChild(document.createTextNode("If WhatsApp does not open, "));
  p.appendChild(link);
  window.location.replace(url);
})();
</script>
</body>
</html>