utils.js

import _ from 'lodash';

export function formatDuration(duration) {
  let sec_num = parseInt(duration, 10);
  let hours   = Math.floor(sec_num / 3600);
  let minutes = Math.floor((sec_num - (hours * 3600)) / 60);
  let seconds = sec_num - (hours * 3600) - (minutes * 60);

  if (hours   < 10) {
    hours   = '0'+hours;
  }
  if (minutes < 10) {
    minutes = '0'+minutes;
  }
  if (seconds < 10) {
    seconds = '0'+seconds;
  }

  if (hours === '00') {
    return minutes+':'+seconds;
  } else {
    return hours+':'+minutes+':'+seconds;
  }
}

export function getSelectedStream(streams, defaultMusicSource) {
  let selectedStream = _.find(streams, {source: defaultMusicSource});

  return selectedStream === undefined
    ? streams ? streams[0] : null
    : selectedStream;
}