import { getSystemType } from './getSystemType';

const { NODE_ENV, DOODLE_ENV } = process.env;

/**
 * Collect basic page and environment data for Google Analytics
 *
 * @param {?Object} trackingData - An object created by getTrackingDataObject function
 * @param {?Object} trackingData.pageType - An object produced by getTrackingDataObject function
 * @return {undefined}
 */
const getBasicAnalyticsData = ({ pageType } = {}) => ({
  page: {
    ...(pageType && { pageType }),
    viewportHeight: window.innerHeight || 0,
    viewportWidth: window.innerWidth || 0,
  },
  environment: {
    systemType: getSystemType({ NODE_ENV, DOODLE_ENV }),
  },
});

export { getBasicAnalyticsData };