rrule
Version:
JavaScript library for working with recurrence rules for calendar dates.
386 lines • 14.3 kB
JavaScript
import ENGLISH from './i18n';
import RRule from '../index';
import { isArray, isNumber, isPresent } from '../helpers';
// =============================================================================
// Helper functions
// =============================================================================
/**
* Return true if a value is in an array
*/
var contains = function (arr, val) {
return arr.indexOf(val) !== -1;
};
var defaultGetText = function (id) { return id.toString(); };
/**
*
* @param {RRule} rrule
* Optional:
* @param {Function} gettext function
* @param {Object} language definition
* @constructor
*/
var ToText = /** @class */ (function () {
function ToText(rrule, gettext, language) {
if (gettext === void 0) { gettext = defaultGetText; }
if (language === void 0) { language = ENGLISH; }
this.text = [];
this.language = language || ENGLISH;
this.gettext = gettext;
this.rrule = rrule;
this.options = rrule.options;
this.origOptions = rrule.origOptions;
if (this.origOptions.bymonthday) {
var bymonthday = [].concat(this.options.bymonthday);
var bynmonthday = [].concat(this.options.bynmonthday);
bymonthday.sort(function (a, b) { return a - b; });
bynmonthday.sort(function (a, b) { return b - a; });
// 1, 2, 3, .., -5, -4, -3, ..
this.bymonthday = bymonthday.concat(bynmonthday);
if (!this.bymonthday.length)
this.bymonthday = null;
}
if (isPresent(this.origOptions.byweekday)) {
var byweekday = !isArray(this.origOptions.byweekday)
? [this.origOptions.byweekday]
: this.origOptions.byweekday;
var days = String(byweekday);
this.byweekday = {
allWeeks: byweekday.filter(function (weekday) {
return !weekday.n;
}),
someWeeks: byweekday.filter(function (weekday) {
return Boolean(weekday.n);
}),
isWeekdays: days.indexOf('MO') !== -1 &&
days.indexOf('TU') !== -1 &&
days.indexOf('WE') !== -1 &&
days.indexOf('TH') !== -1 &&
days.indexOf('FR') !== -1 &&
days.indexOf('SA') === -1 &&
days.indexOf('SU') === -1,
isEveryDay: days.indexOf('MO') !== -1 &&
days.indexOf('TU') !== -1 &&
days.indexOf('WE') !== -1 &&
days.indexOf('TH') !== -1 &&
days.indexOf('FR') !== -1 &&
days.indexOf('SA') !== -1 &&
days.indexOf('SU') !== -1
};
var sortWeekDays = function (a, b) {
return a.weekday - b.weekday;
};
this.byweekday.allWeeks.sort(sortWeekDays);
this.byweekday.someWeeks.sort(sortWeekDays);
if (!this.byweekday.allWeeks.length)
this.byweekday.allWeeks = null;
if (!this.byweekday.someWeeks.length)
this.byweekday.someWeeks = null;
}
else {
this.byweekday = null;
}
}
/**
* Test whether the rrule can be fully converted to text.
* @param {RRule} rrule
* @return {Boolean}
*/
ToText.isFullyConvertible = function (rrule) {
var canConvert = true;
if (!(rrule.options.freq in ToText.IMPLEMENTED))
return false;
if (rrule.origOptions.until && rrule.origOptions.count)
return false;
for (var key in rrule.origOptions) {
if (contains(['dtstart', 'wkst', 'freq'], key))
return true;
if (!contains(ToText.IMPLEMENTED[rrule.options.freq], key))
return false;
}
return canConvert;
};
ToText.prototype.isFullyConvertible = function () {
return ToText.isFullyConvertible(this.rrule);
};
/**
* Perform the conversion. Only some of the frequencies are supported.
* If some of the rrule's options aren't supported, they'll
* be omitted from the output an "(~ approximate)" will be appended.
* @return {*}
*/
ToText.prototype.toString = function () {
var gettext = this.gettext;
if (!(this.options.freq in ToText.IMPLEMENTED)) {
return gettext('RRule error: Unable to fully convert this rrule to text');
}
this.text = [gettext('every')];
// @ts-ignore
this[RRule.FREQUENCIES[this.options.freq]]();
if (this.options.until) {
this.add(gettext('until'));
var until = this.options.until;
this.add(this.language.monthNames[until.getUTCMonth()])
.add(until.getUTCDate() + ',')
.add(until.getUTCFullYear().toString());
}
else if (this.options.count) {
this.add(gettext('for'))
.add(this.options.count.toString())
.add(this.plural(this.options.count) ? gettext('times') : gettext('time'));
}
if (!this.isFullyConvertible())
this.add(gettext('(~ approximate)'));
return this.text.join('');
};
ToText.prototype.HOURLY = function () {
var gettext = this.gettext;
if (this.options.interval !== 1)
this.add(this.options.interval.toString());
this.add(this.plural(this.options.interval) ? gettext('hours') : gettext('hour'));
};
ToText.prototype.MINUTELY = function () {
var gettext = this.gettext;
if (this.options.interval !== 1)
this.add(this.options.interval.toString());
this.add(this.plural(this.options.interval)
? gettext('minutes')
: gettext('minutes'));
};
ToText.prototype.DAILY = function () {
var gettext = this.gettext;
if (this.options.interval !== 1)
this.add(this.options.interval.toString());
if (this.byweekday && this.byweekday.isWeekdays) {
this.add(this.plural(this.options.interval)
? gettext('weekdays')
: gettext('weekday'));
}
else {
this.add(this.plural(this.options.interval) ? gettext('days') : gettext('day'));
}
if (this.origOptions.bymonth) {
this.add(gettext('in'));
this._bymonth();
}
if (this.bymonthday) {
this._bymonthday();
}
else if (this.byweekday) {
this._byweekday();
}
else if (this.origOptions.byhour) {
this._byhour();
}
};
ToText.prototype.WEEKLY = function () {
var gettext = this.gettext;
if (this.options.interval !== 1) {
this.add(this.options.interval.toString()).add(this.plural(this.options.interval) ? gettext('weeks') : gettext('week'));
}
if (this.byweekday && this.byweekday.isWeekdays) {
if (this.options.interval === 1) {
this.add(this.plural(this.options.interval)
? gettext('weekdays')
: gettext('weekday'));
}
else {
this.add(gettext('on')).add(gettext('weekdays'));
}
}
else if (this.byweekday && this.byweekday.isEveryDay) {
this.add(this.plural(this.options.interval) ? gettext('days') : gettext('day'));
}
else {
if (this.options.interval === 1)
this.add(gettext('week'));
if (this.origOptions.bymonth) {
this.add(gettext('in'));
this._bymonth();
}
if (this.bymonthday) {
this._bymonthday();
}
else if (this.byweekday) {
this._byweekday();
}
}
};
ToText.prototype.MONTHLY = function () {
var gettext = this.gettext;
if (this.origOptions.bymonth) {
if (this.options.interval !== 1) {
this.add(this.options.interval.toString()).add(gettext('months'));
if (this.plural(this.options.interval))
this.add(gettext('in'));
}
else {
// this.add(gettext('MONTH'))
}
this._bymonth();
}
else {
if (this.options.interval !== 1)
this.add(this.options.interval.toString());
this.add(this.plural(this.options.interval)
? gettext('months')
: gettext('month'));
}
if (this.bymonthday) {
this._bymonthday();
}
else if (this.byweekday && this.byweekday.isWeekdays) {
this.add(gettext('on')).add(gettext('weekdays'));
}
else if (this.byweekday) {
this._byweekday();
}
};
ToText.prototype.YEARLY = function () {
var gettext = this.gettext;
if (this.origOptions.bymonth) {
if (this.options.interval !== 1) {
this.add(this.options.interval.toString());
this.add(gettext('years'));
}
else {
// this.add(gettext('YEAR'))
}
this._bymonth();
}
else {
if (this.options.interval !== 1)
this.add(this.options.interval.toString());
this.add(this.plural(this.options.interval) ? gettext('years') : gettext('year'));
}
if (this.bymonthday) {
this._bymonthday();
}
else if (this.byweekday) {
this._byweekday();
}
if (this.options.byyearday) {
this.add(gettext('on the'))
.add(this.list(this.options.byyearday, this.nth, gettext('and')))
.add(gettext('day'));
}
if (this.options.byweekno) {
this.add(gettext('in'))
.add(this.plural(this.options.byweekno.length)
? gettext('weeks')
: gettext('week'))
.add(this.list(this.options.byweekno, undefined, gettext('and')));
}
};
ToText.prototype._bymonthday = function () {
var gettext = this.gettext;
if (this.byweekday && this.byweekday.allWeeks) {
this.add(gettext('on'))
.add(this.list(this.byweekday.allWeeks, this.weekdaytext, gettext('or')))
.add(gettext('the'))
.add(this.list(this.bymonthday, this.nth, gettext('or')));
}
else {
this.add(gettext('on the')).add(this.list(this.bymonthday, this.nth, gettext('and')));
}
// this.add(gettext('DAY'))
};
ToText.prototype._byweekday = function () {
var gettext = this.gettext;
if (this.byweekday.allWeeks && !this.byweekday.isWeekdays) {
this.add(gettext('on')).add(this.list(this.byweekday.allWeeks, this.weekdaytext));
}
if (this.byweekday.someWeeks) {
if (this.byweekday.allWeeks)
this.add(gettext('and'));
this.add(gettext('on the')).add(this.list(this.byweekday.someWeeks, this.weekdaytext, gettext('and')));
}
};
ToText.prototype._byhour = function () {
var gettext = this.gettext;
this.add(gettext('at')).add(this.list(this.origOptions.byhour, undefined, gettext('and')));
};
ToText.prototype._bymonth = function () {
this.add(this.list(this.options.bymonth, this.monthtext, this.gettext('and')));
};
ToText.prototype.nth = function (n) {
n = parseInt(n.toString(), 10);
var nth;
var npos;
var gettext = this.gettext;
if (n === -1)
return gettext('last');
npos = Math.abs(n);
switch (npos) {
case 1:
case 21:
case 31:
nth = npos + gettext('st');
break;
case 2:
case 22:
nth = npos + gettext('nd');
break;
case 3:
case 23:
nth = npos + gettext('rd');
break;
default:
nth = npos + gettext('th');
}
return n < 0 ? nth + ' ' + gettext('last') : nth;
};
ToText.prototype.monthtext = function (m) {
return this.language.monthNames[m - 1];
};
ToText.prototype.weekdaytext = function (wday) {
var weekday = isNumber(wday) ? (wday + 1) % 7 : wday.getJsWeekday();
return ((wday.n ? this.nth(wday.n) + ' ' : '') + this.language.dayNames[weekday]);
};
ToText.prototype.plural = function (n) {
return n % 100 !== 1;
};
ToText.prototype.add = function (s) {
this.text.push(' ');
this.text.push(s);
return this;
};
ToText.prototype.list = function (arr, callback, finalDelim, delim) {
if (delim === void 0) { delim = ','; }
if (!isArray(arr)) {
arr = [arr];
}
var delimJoin = function (array, delimiter, finalDelimiter) {
var list = '';
for (var i = 0; i < array.length; i++) {
if (i !== 0) {
if (i === array.length - 1) {
list += ' ' + finalDelimiter + ' ';
}
else {
list += delimiter + ' ';
}
}
list += array[i];
}
return list;
};
callback =
callback ||
function (o) {
return o.toString();
};
var self = this;
var realCallback = function (arg) {
return callback && callback.call(self, arg);
};
if (finalDelim) {
return delimJoin(arr.map(realCallback), delim, finalDelim);
}
else {
return arr.map(realCallback).join(delim + ' ');
}
};
return ToText;
}());
export default ToText;
//# sourceMappingURL=totext.js.map