import _ from 'lodash';

import { ClickUrlInfo } from '../base/AdRendererInterface';

export function generateEncodedClickUrl(redirectUrls: ClickUrlInfo[]) {
  const urls = _.clone(redirectUrls);
  return urls.reduceRight((acc, current, index) => {
    if (index == urls.length - 1) {
      return current.url;
    }
    return current.url + encodeUrlInfo(acc, current.redirect_count);
  }, '');
}

function encodeUrlInfo(url: string, redirectCount: number) {
  while (redirectCount > 0) {
    url = encodeURIComponent(url);
    redirectCount--;
  }
  return url;
}