polar-flow-sleeping-times.js

(function() {

  var ISO_DAY = 'YYYY-MM-DD';
  var FIN_DAY = 'D.M.YYYY';

  function showExport(data) {
    $('#polar-flow-export').remove();
    var $el = $('<div id="polar-flow-export"></div>');
    $el.
      css({
        position: 'fixed',
        width: '100%',
        height: '100%',
        top: 0,
        left: 0,
        zIndex: 9999,
        background: 'white',
        padding: '0 40px'
      }).
      appendTo($('body'));

    $('<h1>Export Polar flow data</h2>').val('foobar').appendTo($el);
    if (data) {
      $('<textarea></textarea>').css({width: '90%', height: 300}).val(data).appendTo($el);
    } else {
      $('<img />').
        attr('src', 'http://cdnjs.cloudflare.com/ajax/libs/galleriffic/2.0.1/css/loader.gif').
        appendTo($el);
    }

    $('<br/>').appendTo($el);
    $('<button class="button" type="button">Close</button>').
      css({fontSize: '20px'}).
      click(function() {
        $el.remove();
      }).
      appendTo($el);
  }

  function parseDuration(str) {
    function pad(n) {
      return ("00" + n).slice(-2);
    }
    var re = /(\d+) hours? (\d+) minutes/g;
    var m = re.exec(str);
    return (m && m.length === 3) ?
      [pad(m[1]), pad(m[2]), '00'].join(':') :
      null;
  }


  function fetchData(start, end) {
    var dayCount = end.diff(start, 'days');

    var days = _.reduce(_.range(0,dayCount+1), function(acc, i) {
      acc.push(moment(start).add(i,'d'));
      return acc;
    }, []);

    var ts = new Date().getTime();
    var futures = _.map(days, function(day) {
      var finDay = day.format(FIN_DAY);
      var url = [
        'https://flow.polar.com/activity/summary/',
        finDay,
        '/',
        finDay,
        '/day?_=',
        ts
      ].join('');
      return $.get(url).then(function(html) {
        var $html = $('<div>'+html+'</div>');
        var $sleep = $html.find('.sleep-tracked-icon-image:eq(0) > span');
        var restfulSleepPercentage = $html.find('.sleep-tracked-icon-image:eq(1) .value-huge').text();
        var stepCount = $html.find('.steps-icon-image .value-huge').text();
        var distance = $html.find('.distance-icon-image .value-huge').text();
        var kcal = $html.find('.calories-icon-image .value-huge').text();

        if (stepCount && parseInt(stepCount) > 0) {
          return {
            day: day,
            data: {
              totalSleep: parseDuration($sleep.eq(0).text()),
              restfulSleep: parseDuration($sleep.eq(2).text()),
              restlessSleep: parseDuration($sleep.eq(3).text()),
              restfulSleepPercentage: restfulSleepPercentage,
              stepCount: stepCount,
              distance: distance,
              kcal: kcal
            }
          };
        } else {
          return null;
        }

      });
    });

    showExport(null);
    $.when.apply($, futures).then(function() {
      var header = ['Day', 'Steps', 'Distance', 'Calories (kcal)', 'Total sleep', 'Restful sleep', 'Restless sleep', 'Restful sleep %'].join('\t');
      var rows = _.reduce(_.compact(arguments), function(acc, obj) {
        var d = obj.data;
        acc.push([obj.day.format(ISO_DAY), d.stepCount, d.distance, d.kcal, d.totalSleep, d.restfulSleep, d.restlessSleep, d.restfulSleepPercentage].join('\t'));
        return acc;
      }, [header]);
      showExport(rows.join('\n'));
    });
  }

  // START
  (function() {
    var example = moment().add(-7, 'd').format(ISO_DAY);
    var startInput = prompt('Give either start day of export (e.g. '+example+') or number of days from now to export (e.g. 7)', "");

    var start = moment(startInput, ISO_DAY);
    if (start.isValid()) {

    } else if ((/^\d+$/gi).test(startInput)) {
      fetchData(moment().subtract(parseInt(startInput), 'd'), moment());
    } else {
      alert('Invalid input.')
    }

  })();

  //fetchData(moment('2015-03-09', ISO_DAY), moment('2015-03-10', ISO_DAY));

})();