@bemit/consent-ui/PluginGoogle/PluginGoogle.js

export const loadGtag = (googleTracking, cb) => {
  const scriptGa = document.createElement('script');
  scriptGa.async = true;
  scriptGa.src = 'https://www.googletagmanager.com/gtag/js?id=' + googleTracking;
  scriptGa.onload = cb;
  document.body.append(scriptGa);
};
export const pluginGoogle = (group, googleTracking, config, options = {
  controlledPageView: true
}) => {
  const gtagState = {
    loaded: false
  };
  window.gtag = function () {
    window.dataLayer?.push(arguments);
  };
  let tmpLayer = [];
  if (!gtagState.loaded) {
    tmpLayer = [...(window.dataLayer || [])];
    window.dataLayer = [];
  }
  return {
    shouldBe: options => {
      return Boolean(options?.groups?.[group]);
    },
    create: wasAlreadyCreated => {
      if (wasAlreadyCreated) return;
      const cb = () => {
        window.gtag?.('js', new Date());
        window.gtag?.('config', googleTracking, {
          anonymize_ip: true,
          transport_type: 'beacon',
          send_page_view: !options?.controlledPageView,
          ...config
        });
        if (options?.controlledPageView) {
          trackPageView({}, options);
        }
        tmpLayer.forEach(function (elem) {
          window.dataLayer.push(elem);
        });
        tmpLayer = [];
      };
      if (!gtagState.loaded) {
        gtagState.loaded = true;
        loadGtag(googleTracking, cb);
      } else {
        cb();
      }
    },
    destroy: () => {
      return {
        requiresRefresh: true
      };
    }
  };
};
export function trackPageView(attributes, options = {}) {
  const {
    omitQuery = false,
    includeHash = false
  } = options;
  let url = window.location.origin + window.location.pathname;
  if (!omitQuery && window.location.search) {
    url += window.location.search;
  }
  if (includeHash && window.location.hash) {
    url += window.location.hash;
  }
  window.gtag?.('event', 'page_view', {
    page_title: document.title,
    page_location: url,
    ...attributes
  });
}