videojs-vast-vpaid/src/scripts/ads/vast/parsers.js

VAST plugin to use with video.js

const utilities = require('../../utils/utilityFunctions');

const durationRegex = /(\d\d):(\d\d):(\d\d)(\.(\d\d\d))?/;

const parsers = {

  duration: function parseDuration (durationStr) {
    let match, durationInMs;

    if (utilities.isString(durationStr)) {
      match = durationStr.match(durationRegex);
      if (match) {
        durationInMs = parseHoursToMs(match[1]) + parseMinToMs(match[2]) + parseSecToMs(match[3]) + parseInt(match[5] || 0, 10);
      }
    }

    return isNaN(durationInMs) ? null : durationInMs;

    /** * local functions ***/
    function parseHoursToMs (hourStr) {
      return parseInt(hourStr, 10) * 60 * 60 * 1000;
    }

    function parseMinToMs (minStr) {
      return parseInt(minStr, 10) * 60 * 1000;
    }

    function parseSecToMs (secStr) {
      return parseInt(secStr, 10) * 1000;
    }
  },

  offset: function parseOffset (offset, duration) {
    if (isPercentage(offset)) {
      return calculatePercentage(offset, duration);
    }

    return parsers.duration(offset);

    /** * Local function ***/
    function isPercentage (offset) {
      const percentageRegex = /^\d+(\.\d+)?%$/g;

      return percentageRegex.test(offset);
    }

    function calculatePercentage (percentStr, duration) {
      if (duration) {
        return calcPercent(duration, parseFloat(percentStr.replace('%', '')));
      }

      return null;
    }

    function calcPercent (quantity, percent) {
      return quantity * percent / 100;
    }
  }

};


module.exports = parsers;