function getCookie(name) {
  var value = "; " + document.cookie;
  var parts = value.split("; " + name + "=");
  if (parts.length >= 2) return parts.pop().split(";").shift();
}

var rtPending = [];
var rtRetryTimer = null;

function rtResolveClickId() {
  var clickId = getCookie('rtkclickid-store');
  if (!clickId || clickId === 'undefined') {
    clickId = sessionStorage.getItem("rtkclickid");
  }
  if (!clickId || clickId === 'undefined') return null;
  return clickId;
}

function rtFireEvent(hostname, type, clickId) {
  var url = `${hostname}/postback?clickid=${clickId}&type=${type}&eventid=${clickId}`;
  var sent = false;
  if (navigator.sendBeacon) {
    try {
      sent = navigator.sendBeacon(url);
    } catch (e) {
      sent = false;
    }
  }
  if (!sent) {
    var xhr = new XMLHttpRequest;
    xhr.open("GET", url);
    xhr.send();
  }
  if (type === 'viewcontent' || type === 'addtocart') {
    var xhr2 = new XMLHttpRequest;
    xhr2.open("POST", '/cart/update.js');
    xhr2.setRequestHeader("Content-Type", "application/json");
    xhr2.send(
      JSON.stringify({
        attributes: {
          '__clickid': clickId,
        }
      })
    );
  }
}

function rtScheduleRetry() {
  if (rtRetryTimer) return;
  rtRetryTimer = setTimeout(function () {
    rtRetryTimer = null;
    rtFlushPending();
    if (rtPending.length) rtScheduleRetry();
  }, 1000);
}

function rtFlushPending() {
  var clickId = rtResolveClickId();
  if (!clickId) return;
  while (rtPending.length) {
    var e = rtPending.shift();
    rtFireEvent(e.hostname, e.type, clickId);
  }
}

function submitEvent(hostname, type) {
  console.log(type);
  var clickId = rtResolveClickId();
  if (!clickId) {
    rtPending.push({ hostname: hostname, type: type });
    rtScheduleRetry();
    return;
  }
  rtFireEvent(hostname, type, clickId);
}

window.addEventListener('pagehide', rtFlushPending);
document.addEventListener('visibilitychange', function () {
  if (document.visibilityState === 'hidden') rtFlushPending();
});

function detectProductByMeta() {
  try {
    return meta && meta.product;
  } catch (e) {
    return false;
  }
}

function detectProductByCartForm() {
  return document.querySelector("form[action='/cart/add']");
}

var rtPathArray = document.currentScript.src.split('/');
var rtProtocol = rtPathArray[0];
var rtHost = rtPathArray[2];
var rtHostname = rtProtocol + '//' + rtHost;
var rtCartFormDetected = false;
var rtIsProduct = false;
document.addEventListener("DOMContentLoaded", function () {
  if (detectProductByMeta() || detectProductByCartForm()) {
    rtIsProduct = true;
  } else {
    var path = window.location.pathname;
    var potentialHandle = path.substring(path.lastIndexOf("/") + 1);
    var xhr = new XMLHttpRequest;
    xhr.onreadystatechange = function () {
      if (xhr.status == 200) {
        submitEvent(rtHostname, 'viewcontent');
      }
    };
    xhr.open("GET", `/products/${potentialHandle}.json`);
    xhr.send();
  }
  if (rtIsProduct) {
    submitEvent(rtHostname, 'viewcontent');

    document.body.addEventListener('click', function (event) {
      if (event.target.className && event.target.className.toString().indexOf('shopify-payment-button__button') !== -1) {
        submitEvent(rtHostname, 'buynow');
      }
    });
  }
});

(function () {
  var open = window.XMLHttpRequest.prototype.open;

  function openReplacement() {
    this.addEventListener("load", function () {
      if (this._url && this._url.indexOf('/products/') !== -1 && this._url.indexOf('view=ajax') !== -1) {
        submitEvent(rtHostname, 'viewcontent');

        setTimeout(function () {
          var cartForms = document.querySelectorAll("form[action='/cart/add']");
          if (cartForms) {
            cartForms.forEach(function (cartForm) {
              cartForm.addEventListener("submit", function (e) {
                submitEvent(rtHostname, 'addtocart');
                rtCartFormDetected = true;
              });
            });
          }
        }, 2000);
      }
      var url = this._url ? this._url.split('?')[0] : this._url;
      url = url ? url.split('&')[0] : url;
      url = url ? url.substr(url.indexOf('/cart/') !== -1 ? url.indexOf('/cart/') : 0) : url;
      if (
        [
          `/cart/add`,
          `/cart/add.js`,
          //`/cart/update.js`,
          //`/cart/change.js`,
          //`/cart/clear.js`,
        ].includes(url)) {
        if (!rtCartFormDetected) {
          submitEvent(rtHostname, 'addtocart');
        }
      }
    });
    return open.apply(this, arguments);
  }

  window.XMLHttpRequest.prototype.open = openReplacement;
})();

(function (ns, fetch) {
  if (typeof fetch !== 'function') return;

  ns.fetch = function () {
    var response = fetch.apply(this, arguments);

    response.then(res => {
      var url = res.url ? res.url.split('?')[0] : res.url;
      url = url ? url.split('&')[0] : url;
      url = url ? url.substr(url.indexOf('/cart/') !== -1 ? url.indexOf('/cart/') : 0) : url;
      if ([
        `/cart/add`,
        `/cart/add.js`,
        //`/cart/update.js`,
        //`/cart/change.js`,
        //`/cart/clear.js`,
      ].includes(url)) {
        res.clone().json().then(data => {
          if (!rtCartFormDetected) {
            submitEvent(rtHostname, 'addtocart');
          }
        });
      }
    });

    return response;
  }

}(window, window.fetch))