AngularJS Attribution Page tracking

app.js

angular.module('AttributionApp').run(['$rootScope', 'AnalyticsTracker', '$state', function($rootScope, AnalyticsTracker, $state) {
  $rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams) {
    var toStateFragment = $state.href(toState, toParams);
    var fromStateFragment = $state.href(fromState, fromParams);

    var origin = window.location.origin;
    var path = window.location.pathname;

    // strip hash-bang from url
    var pathWithParams = path + toStateFragment.replace(/^#!\//, '')

    var properties = {
      url: (origin + pathWithParams),
      path: pathWithParams.replace(/\?.*/, ''),
      search: (pathWithParams.match(/\?/) ? pathWithParams.replace(/(\?.*)$/, '$1') : '')
    };

    if (fromStateFragment) {
      properties.referrer = origin + path + fromStateFragment.replace(/^#!\//, '');
    }

    // some pages are "named pages", e.g. instead of "Loaded a Page" these will be:
    // "Viewed #{NAME} Page" and it will be possible to select these as conversion events 
    var pageName = null;
    switch (toState.name) {
      case 'onboarding':
        pageName = 'Onboarding ' + _.capitalize(toParams.step || 'check');
        break;
      case 'signup':
        pageName = 'Signup';
        break;
    }

    // AnalyticsTracker is a wrapper around "Attribution" or "Segment"
    AnalyticsTracker.page(pageName, properties);
  });
});