Function rebuildYear

codebase/sources/dhtmlxscheduler.es.js:17345–17428

(year, options)

  return wdaymask;
}();
function rebuildYear(year, options) {
  var firstyday = datetime(year, 1, 1);
  var yearlen = isLeapYear(year) ? 366 : 365;
  var nextyearlen = isLeapYear(year + 1) ? 366 : 365;
  var yearordinal = toOrdinal(firstyday);
  var yearweekday = getWeekday(firstyday);
  var result = __assign(__assign({ yearlen, nextyearlen, yearordinal, yearweekday }, baseYearMasks(year)), { wnomask: null });
  if (empty(options.byweekno)) {
    return result;
  }
  result.wnomask = repeat(0, yearlen + 7);
  var firstwkst;
  var wyearlen;
  var no1wkst = firstwkst = pymod(7 - yearweekday + options.wkst, 7);
  if (no1wkst >= 4) {
    no1wkst = 0;
    wyearlen = result.yearlen + pymod(yearweekday - options.wkst, 7);
  } else {
    wyearlen = yearlen - no1wkst;
  }
  var div = Math.floor(wyearlen / 7);
  var mod = pymod(wyearlen, 7);
  var numweeks = Math.floor(div + mod / 4);
  for (var j = 0; j < options.byweekno.length; j++) {
    var n = options.byweekno[j];
    if (n < 0) {
      n += numweeks + 1;
    }
    if (!(n > 0 && n <= numweeks)) {
      continue;
    }
    var i = void 0;
    if (n > 1) {
      i = no1wkst + (n - 1) * 7;
      if (no1wkst !== firstwkst) {
        i -= 7 - firstwkst;
      }
    } else {
      i = no1wkst;
    }
    for (var k = 0; k < 7; k++) {
      result.wnomask[i] = 1;
      i++;
      if (result.wdaymask[i] === options.wkst)
        break;
    }
  }
  if (includes(options.byweekno, 1)) {
    var i = no1wkst + numweeks * 7;
    if (no1wkst !== firstwkst)
      i -= 7 - firstwkst;
    if (i < yearlen) {
      for (var j = 0; j < 7; j++) {
        result.wnomask[i] = 1;
        i += 1;
        if (result.wdaymask[i] === options.wkst)
          break;
      }