// Utility Functions
  function setCookie(cname, cvalue, domain, duration) {
    const d = new Date();
    let expires = '', calc_duration = 0, set_domain;

    if (duration) {
      if (duration.minutes) {
        calc_duration = duration.minutes * 60 * 1000;
      } else if (duration.hours) {
        calc_duration = duration.hours * 60 * 60 * 1000;
      } else if (duration.days) {
        calc_duration = duration.days * 24 * 60 * 60 * 1000;
      } else if (duration.weeks) {
        calc_duration = duration.weeks * 7 * 24 * 60 * 60 * 1000;
      } else if (duration.months) {
        calc_duration = duration.months * 30 * 24 * 60 * 60 * 1000;
      } else if (duration.years) {
        calc_duration = duration.years * 365 * 24 * 60 * 60 * 1000;
      }
      d.setTime(d.getTime() + calc_duration);
      expires = "expires=" + d.toUTCString() + ';';
    }
    set_domain = domain ? domain : '.' + document.domain.replace('www.', '');
    document.cookie = cname + "=" + cvalue + ";" + expires + "domain=" + set_domain + ";path=/;" + "SameSite=None; secure;";
  }

  function getCookie(cname) {
    const result = new RegExp('(?:^|; )' + encodeURIComponent(cname) + '=([^;]*)').exec(document.cookie);
    return result ? decodeURIComponent(result[1]) : null;
  }

  // User Location Details
  function initializeUserDetails() {
    const xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
      if (this.readyState == 4 && this.status == 200) {
        const data = JSON.parse(this.responseText);
        setCookie('tvc_location_details', JSON.stringify({
          ct: data.ct,
          rg: data.rg,
          lat: data.lat,
          long: data.long
        }), '.bajajfinserv.in');

        setCookie('tvc_device_details', JSON.stringify({
          dc: data.dc,
          os: data.os,
          osv: data.osv,
          br: data.br,
          brv: data.brv
        }), '.bajajfinserv.in');

        setCookie('tvc_user_city', data.ct, '.bajajfinserv.in');
      }
    };
    xhttp.open("GET", "https://ua-ip-lookup-dot-bajaj-finserv-177211.appspot.com/?os", true);
    xhttp.send();
  }

  // Clevertap Functions
  function initializeClevertap() {
    if (typeof clevertap !== 'undefined') {
      const ct_id = clevertap.getCleverTapID();
      window.dataLayer = window.dataLayer || [];
      window.dataLayer.push({ 'ct_id': ct_id });
      setCookie('clevertap_id', ct_id, '.bajajfinserv.in');
    }
  }

  function setupClevertapNotifications() {
    if (typeof clevertap !== 'undefined' && Notification.permission === "granted") {
      clevertap.notifications.push({
        titleText: "Would you like to receive Push Notifications?",
        bodyText: "We promise to only send you relevant content and give you updates on your transactions",
        okButtonText: "Sign me up!",
        skipDialog: "true",
        rejectButtonText: "No thanks",
        okButtonColor: "#F28046",
        askAgainTimeInSeconds: 5,
        serviceWorkerPath: "/service-worker.js"
      });
    }
  }

  // Campaign Attribution
  function initializeCampaignTracking() {
    let campaignUtmSource = 'organic_bfl';
    if (window.location.href.toString().includes('/service-guides')) {
      campaignUtmSource = 'organic_myaccount';
    }

    const campaign = {
      utm_medium: getUrlValue('utm_medium') || 'bfl',
      utm_campaign: getUrlValue('utm_campaign') || 'NA',
      utm_keyword: getUrlValue('utm_keyword') || 'NA',
      utm_source: getUrlValue('utm_source') || campaignUtmSource,
      utm_content: getUrlValue('utm_content') || 'NA'
    };

    setCookie('campaignCookienew', JSON.stringify(campaign), '.bajajfinserv.in');
    setCookie('campaignCookie', JSON.stringify(campaign), '.bajajfinserv.in');

    pushCampaignToDataLayer(campaign);
  }

  function getUrlValue(param) {
    param = param.replace(/[\\[]/, "\\\\[").replace(/[\\]]/, "\\\\]");
    const regex = new RegExp("[\\\\?&]" + param + "=([^&#]*)");
    const results = regex.exec(location.search);
    return results === null ? "" : decodeURIComponent(results[1].replace(/\\+/g, " "));
  }

  function pushCampaignToDataLayer(campaign) {
    window.dataLayer = window.dataLayer || [];
    dataLayer.push({
      'event': 'utm_campaign_stamping',
      'page_url': document.location.pathname,
      'utm_source': campaign.utm_source,
      'utm_medium': campaign.utm_medium,
      'utm_campaign': campaign.utm_campaign,
      'utm_content': campaign.utm_content,
      'utm_keyword': campaign.utm_keyword
    });
  }

  // Decibel Integration
  function initializeDecibel() {
    const script = document.createElement('script');
    script.type = 'text/javascript';
    script.innerHTML = [
      'const accountId = 14099;',
      'var propertyId = "";',
      'if (window.location.hostname === "www.bajajfinserv.in") {',
      ' propertyId = 992937;',
      '} else if (window.location.hostname === "cont-sites.bajajfinserv.in") {',
      ' propertyId = 1143569;',
      '}',
      '(function(d,e,c,i,b,el,it) {',
      '    d._da_=d._da_||[];_da_.oldErr=d.onerror;_da_.err=[];',
      '    d.onerror=function(){_da_.err.push(arguments);_da_.oldErr&&_da_.oldErr.apply(d,Array.prototype.slice.call(arguments));};',
      '    d.DecibelInsight=b;d[b]=d[b]||function(){(d[b].q=d[b].q||[]).push(arguments);};',
      '    el=e.createElement(c),it=e.getElementsByTagName(c)[0];el.async=1;el.src=i;it.parentNode.insertBefore(el,it);',
      '})(window,document,"script","https://cdn.decibelinsight.net/i/" + accountId + "/" + propertyId + "/di.js","decibelInsight");'
    ].join('\n');
    document.head.appendChild(script);

    // Send GA Client ID to Decibel
    if (typeof decibelInsight !== 'undefined') {
      const gaClientId = getCookie('_ga');
      if (gaClientId) {
        decibelInsight("sendCustomDimension", "GA_ID", gaClientId);
      }

      // Send Adobe Target Experiment data
      const atExp = localStorage.getItem('AT_Exp');
      if (atExp) {
        decibelInsight("sendCustomDimension", "AT_Variant", atExp);
      }
    }
  }

  // Adobe Integration
  function initializeAdobeTarget() {
    if (typeof adobe !== 'undefined' && typeof adobe.target !== 'undefined') {
      adobe.target.getOffer({
        mbox: "target-click",
        params: {
          "clicked_buy_online": "true",
          "profile.click_buy_online_insights": "true"
        },
        success: function (offer) {
          adobe.target.applyOffer({
            mbox: "target-click",
            offer: offer
          });
        },
        error: function (status, error) { }
      });
    }
  }

  // Enhanced Event Tracking
  function trackCustomEvent(eventData) {
    if (typeof clevertap !== 'undefined') {
      clevertap.event.push("click", {
        event_type: eventData.eventType || "form_event",
        custom_event: eventData.customEvent || "form_event",
        component: eventData.component,
        element: eventData.element,
        page_url: window.location.href,
        destination_url: eventData.destinationUrl,
        section_title: eventData.sectionTitle,
        cta_text: eventData.ctaText,
        tab_position: eventData.tabPosition,
        sub_section: eventData.subSection,
        page_type: getPageType(),
        product_name: getProductName(),
        product_category: getProductCategory(),
        customer_tag: getCustomerTag(),
        customer_id: getCustomerId(),
        journey_tag: eventData.journeyTag,
        stage_tag: eventData.stageTag,
        application_id: eventData.applicationId,
        iswebview: isWebView()
      });
    }
  }

  // User Profile Management
  function updateUserProfile(profileData) {
    if (typeof clevertap !== 'undefined') {
      clevertap.profile.push({
        "Site": {
          ...profileData,
          "Timestamp": new Date()
        }
      });
    }
  }

  // Metadata Functions
  function getPageType() {
    const metaTag = document.querySelector('meta[name="tag-1"]');
    return metaTag ? metaTag.content : 'NA';
  }

  function getProductName() {
    const metaTag = document.querySelector('meta[name="tag-3"]');
    return metaTag ? metaTag.content : 'NA';
  }

  function getProductCategory() {
    const metaTag = document.querySelector('meta[name="tag-2"]');
    return metaTag ? metaTag.content : 'NA';
  }

  function getCustomerTag() {
    return localStorage.getItem('ssoCustType') || 'NA';
  }

  function getCustomerId() {
    return localStorage.getItem('custId') || 'NA';
  }

  function isWebView() {
    return typeof isWebView !== 'undefined' ? isWebView : false;
  }

  // GA4 Ecommerce Tracking
  function trackEcommercePurchase(transactionData) {
    window.dataLayer = window.dataLayer || [];
    dataLayer.push({
      event: 'purchase',
      ecommerce: {
        transaction_id: transactionData.transactionId,
        affiliation: transactionData.affiliation || 'Online Store',
        value: transactionData.value,
        tax: transactionData.tax || 0,
        shipping: transactionData.shipping || 0,
        currency: transactionData.currency || 'INR',
        items: transactionData.items || []
      }
    });
  }

  // Popup Management
  function handlePopupClose() {
    try {
      const parentClassSelector = document.querySelector("#wzrkImageOnlyDiv");
      if (!parentClassSelector) {
        return;
      }

      const popupElement = document.querySelector("#wzrkImageOnlyDiv > ct-web-popup-imageonly");
      if (!popupElement || !popupElement.shadowRoot) {
        return;
      }

      const overlay = popupElement.shadowRoot.querySelector("div > div.opacity");
      if (!overlay) {
        return;
      }

      overlay.addEventListener('click', function () {
        parentClassSelector.style.display = 'none';
        popupElement.remove();
      });
    } catch (err) { return; }
  }

  // Medallia Integration
  function initializeMedallia(environment) {
    const script = document.createElement('script');
    script.type = 'text/javascript';
    script.async = true;

    if (environment === 'production') {
      script.src = 'https://resources.digital-cloud-sin1.medallia.com/wdcsin1/42372/onsite/embed.js';
    } else if (environment === 'development') {
      script.src = 'https://resources.digital-cloud-sin1.medallia.com/wdcsin1/42372/onsite/embed.js';
    }

    document.head.appendChild(script);
  }

  // EMI Card Identity Management
  function setEmiCardIdentity(mobileNumber) {
    if (typeof clevertap !== 'undefined' && mobileNumber) {
      const phoneNumber = '+91' + mobileNumber;

      if (phoneNumber.length === 13) {
        clevertap.onUserLogin.push({
          "Site": {
            "Identity": phoneNumber,
            "Phone": phoneNumber,
            "Timestamp": new Date()
          }
        });

        // Push event to dataLayer
        window.dataLayer = window.dataLayer || [];
        window.dataLayer.push({
          "event": "button_click",
          "component": "login_popup",
          "element": "login_success",
          "customer_id": getCustomerId(),
          "customer_tag": getCustomerTag()
        });
      }
    }
  }

  // Pipestream GA4 Integration
  function initializePipestreamGA4() {
    try {
      XMLHttpRequest.prototype.realOpen = XMLHttpRequest.prototype.open;

      XMLHttpRequest.prototype.open = function (method, url) {
        if (url.indexOf("https://run-server-side-tagging-t3s332nvca-el.a.run.app") !== -1) {
          this._originalURL = url;
          this._originalMethod = method;
          const modifiedUrl = url.replace(
            'https://run-server-side-tagging-t3s332nvca-el.a.run.app',
            "https://pubqueue-bajaj-dot-bajaj-finserv-pipestream.el.r.appspot.com"
          );
          this._modifiedUrl = modifiedUrl;
        }
        this.realOpen(method, url);
      };

      XMLHttpRequest.prototype.realSend = XMLHttpRequest.prototype.send;

      XMLHttpRequest.prototype.send = function (data) {
        if (this._modifiedUrl !== undefined) {
          if (data) {
            this._modifiedUrl += (this._modifiedUrl.indexOf('?') === -1 ? '?' : '&') + data;
          }
          const modifiedXHR = new XMLHttpRequest();
          modifiedXHR.open(this._originalMethod, this._modifiedUrl);
          modifiedXHR.setRequestHeader('Content-type', 'text/plain');
          modifiedXHR.send(data);
          this.realSend(data);
        } else {
          this.realSend(data);
        }
      };
    } catch (e) { }
  }

  // Additional Utility Functions
  function getClientId() {
    const gaCookie = getCookie('_ga');
    return gaCookie ? gaCookie.slice(6) : null;
  }

  function getContentBucket() {
    const metaTag = document.querySelector('meta[name="tag-4"]');
    return metaTag ? metaTag.content : 'NA';
  }

  function getPageDates() {
    const createdTag = document.querySelector('meta[name="tag-5"]');
    const updatedTag = document.querySelector('meta[name="tag-6"]');
    return {
      created: createdTag ? createdTag.content : 'NA',
      updated: updatedTag ? updatedTag.content : 'NA'
    };
  }

  function getFormStageName() {
    const activeStage = document.querySelectorAll('.active.ng-star-inserted')[0];
    return activeStage ? activeStage.textContent.trim() : 'NA';
  }

  function getScrollableRatio() {
    const heightOfPage = Math.max(
      document.body.scrollHeight,
      document.body.offsetHeight,
      document.documentElement.clientHeight,
      document.documentElement.scrollHeight,
      document.documentElement.offsetHeight
    );

    const heightOfViewport = Math.max(
      document.documentElement.clientHeight,
      window.innerHeight
    );

    const ratio = heightOfViewport / heightOfPage;
    const maximumRatio = 0.25;

    return ratio < maximumRatio ? 'is_scrollable' : 'non_scrollable';
  }

  // Initialize everything
  function initialize() {
    if (!getCookie('tvc_location_details') || !getCookie('tvc_device_details')) {
      initializeUserDetails();
    }

    initializeClevertap();
    setupClevertapNotifications();
    initializeCampaignTracking();

    // Initialize Decibel
    initializeDecibel();

    // Initialize Adobe Target
    if (window.location.pathname.includes('/insights/')) {
      initializeAdobeTarget();
    }

    // Setup customer data in dataLayer
    window.dataLayer = window.dataLayer || [];
    dataLayer.push({ 'bfl_cust_id': getCustomerId() });
    dataLayer.push({ 'bfl_cust_tag': getCustomerTag() });

    // Initialize Medallia based on environment
    if (window.location.hostname === 'www.bajajfinserv.in') {
      initializeMedallia('production');
    } else if (window.location.hostname.includes('cont-sites.bajajfinserv.in')) {
      initializeMedallia('development');
    }

    // Initialize Pipestream GA4
    initializePipestreamGA4();

    // Setup popup close handler
    if (document.readyState === 'complete') {
      handlePopupClose();
    } else {
      window.addEventListener('load', handlePopupClose);
    }
  }

  // Execute initialization when DOM is ready
  window.addEventListener("load", initialize);

  // Export functions for external use
  window.tvcGtm = {
    setCookie,
    getCookie,
    initializeUserDetails,
    initializeClevertap,
    setupClevertapNotifications,
    initializeCampaignTracking,
    trackCustomEvent,
    updateUserProfile,
    getPageType,
    getProductName,
    getProductCategory,
    getCustomerTag,
    getCustomerId,
    isWebView,
    trackEcommercePurchase,
    handlePopupClose,
    initializeMedallia,
    setEmiCardIdentity,
    initializePipestreamGA4,
    getClientId,
    getContentBucket,
    getPageDates,
    getFormStageName,
    getScrollableRatio
  };