Yandex Metrics Script Code

<!-- Insert this script before the closing tag </body> -->
<!-- The {wz_metric} token is used for substituting the Analytics code. Make sure that the token and the text in which it is written are separated by at least one space character. -->
<script>
  (function () {
    function ChangeLinkWA() {
      this.text = "Hello! My application number: {wz_metric}";
      this.cookieSource = "_ym_uid";
    }

    ChangeLinkWA.prototype.editLink = function (url, id) {
      if (decodeURIComponent(url.split("text=")[1]) === this.text.replace(/{wz_metric}/gi, id)) return;
      var regexNumberPhone = /\d+/;
      if (!regexNumberPhone.test(url)) return;
      var phone = url.match(regexNumberPhone)[0];
      var host = url.split(phone)[0];
      var newUrl = host === "https://wa.me/" ? `${host}${phone}?text=${this.text.replace(/{wz_metric}/gi, id)}` : `${host}${phone}&text=${this.text.replace(/{wz_metric}/gi, id)}`;
      return newUrl;
    };

    ChangeLinkWA.prototype.getCookie = function (name) {
      var cookie = document.cookie;
      var matches = cookie.match(new RegExp(`(?:^|; )${name.replace(/([.$?*|{}()[]\/+^])/g, "\\$1")}=([^;]*)`));
      return matches ? decodeURIComponent(matches[1]) : undefined;
    };

    ChangeLinkWA.prototype.censusLinks = function () {
      var links = document.querySelectorAll('[href*="//wa.me"], [href*="//api.whatsapp.com/send"], [href*="//web.whatsapp.com/send"], [href^="whatsapp://send"]');
      var id = this.getCookie(this.cookieSource);
      var that = this;
      links.forEach(function (link) {
        var newLink = that.editLink(link.href, id);
        if (newLink) link.href = newLink;
      });
    };

    window.addEventListener("DOMContentLoaded", function () {
      if (
        !(window.__wz_scripts && window.__wz_scripts.scriptsChangeLinkWA)
      ) {
        if (!window.__wz_scripts) window.__wz_scripts = {};
        window.__wz_scripts.scriptsChangeLinkWA = new ChangeLinkWA();
        var interval = setInterval(function () {
          var id = this.getCookie(this.cookieSource);
          if (id) {
            clearInterval(interval);
            window.__wz_scripts.scriptsChangeLinkWA.censusLinks();
          }
        }, 200);

      }
    });
  })();
</script>