/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 * Portions Copyright (C) Philipp Kewisch */
class t{static fromString(e){return new t(e)}constructor(t){this.value=t}icaltype="binary";decodeValue(){return this._b64_decode(this.value)}setEncodedValue(t){this.value=this._b64_encode(t)}_b64_encode(t){let e,i,r,n,s,a,o,l,h="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",u=0,c=0,d="",m=[];if(!t)return t;do{e=t.charCodeAt(u++),i=t.charCodeAt(u++),r=t.charCodeAt(u++),l=e<<16|i<<8|r,n=l>>18&63,s=l>>12&63,a=l>>6&63,o=63&l,m[c++]=h.charAt(n)+h.charAt(s)+h.charAt(a)+h.charAt(o)}while(u<t.length);d=m.join("");let f=t.length%3;return(f?d.slice(0,f-3):d)+"===".slice(f||3)}_b64_decode(t){let e,i,r,n,s,a,o,l,h="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",u=0,c=0,d="",m=[];if(!t)return t;t+="";do{n=h.indexOf(t.charAt(u++)),s=h.indexOf(t.charAt(u++)),a=h.indexOf(t.charAt(u++)),o=h.indexOf(t.charAt(u++)),l=n<<18|s<<12|a<<6|o,e=l>>16&255,i=l>>8&255,r=255&l,m[c++]=64==a?String.fromCharCode(e):64==o?String.fromCharCode(e,i):String.fromCharCode(e,i,r)}while(u<t.length);return d=m.join(""),d}toString(){return this.value}}const e=/([PDWHMTS]{1,1})/,i=["weeks","days","hours","minutes","seconds","isNegative"];class r{static fromSeconds(t){return(new r).fromSeconds(t)}static isValueString(t){return"P"===t[0]||"P"===t[1]}static fromString(t){let i=0,s=Object.create(null),a=0;for(;-1!==(i=t.search(e));){let e=t[i],r=t.slice(0,Math.max(0,i));t=t.slice(i+1),a+=n(e,r,s)}if(a<2)throw new Error('invalid duration value: Not enough duration components in "'+t+'"');return new r(s)}static fromData(t){return new r(t)}constructor(t){this.wrappedJSObject=this,this.fromData(t)}weeks=0;days=0;hours=0;minutes=0;seconds=0;isNegative=!1;icalclass="icalduration";icaltype="duration";clone(){return 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s.fromData({start:this.start?this.start.clone():null,end:this.end?this.end.clone():null,duration:this.duration?this.duration.clone():null})}getDuration(){return this.duration?this.duration:this.end.subtractDate(this.start)}getEnd(){if(this.end)return this.end;{let t=this.start.clone();return t.addDuration(this.duration),t}}compare(t){return t.compare(this.start)<0?1:t.compare(this.getEnd())>0?-1:0}toString(){return this.start+"/"+(this.end||this.duration)}toJSON(){return[this.start.toString(),(this.end||this.duration).toString()]}toICALString(){return this.start.toICALString()+"/"+(this.end||this.duration).toICALString()}}class a{static _dowCache={};static _wnCache={};static daysInMonth(t,e){let i=30;return t<1||t>12||(i=[0,31,28,31,30,31,30,31,31,30,31,30,31][t],2==t&&(i+=a.isLeapYear(e))),i}static isLeapYear(t){return t<=1752?t%4==0:t%4==0&&t%100!=0||t%400==0}static fromDayOfYear(t,e){let i=e,r=t,n=new a;n.auto_normalize=!1;let s=a.isLeapYear(i)?1:0;if(r<1)return i--,s=a.isLeapYear(i)?1:0,r+=a.daysInYearPassedMonth[s][12],a.fromDayOfYear(r,i);if(r>a.daysInYearPassedMonth[s][12])return s=a.isLeapYear(i)?1:0,r-=a.daysInYearPassedMonth[s][12],i++,a.fromDayOfYear(r,i);n.year=i,n.isDate=!0;for(let t=11;t>=0;t--)if(r>a.daysInYearPassedMonth[s][t]){n.month=t+1,n.day=r-a.daysInYearPassedMonth[s][t];break}return n.auto_normalize=!0,n}static fromStringv2(t){return new a({year:parseInt(t.slice(0,4),10),month:parseInt(t.slice(5,7),10),day:parseInt(t.slice(8,10),10),isDate:!0})}static fromDateString(t){return new a({year:_(t.slice(0,4)),month:_(t.slice(5,7)),day:_(t.slice(8,10)),isDate:!0})}static fromDateTimeString(t,e){if(t.length<19)throw new Error('invalid date-time value: "'+t+'"');let i,r;"Z"===t.slice(-1)?i=m.utcTimezone:e&&(r=e.getParameter("tzid"),e.parent&&("standard"===e.parent.name||"daylight"===e.parent.name?i=m.localTimezone:r&&(i=e.parent.getTimeZoneByID(r))));const n={year:_(t.slice(0,4)),month:_(t.slice(5,7)),day:_(t.slice(8,10)),hour:_(t.slice(11,13)),minute:_(t.slice(14,16)),second:_(t.slice(17,19))};return r&&!i&&(n.timezone=r),new a(n,i)}static fromString(t,e){return t.length>10?a.fromDateTimeString(t,e):a.fromDateString(t)}static fromJSDate(t,e){return(new a).fromJSDate(t,e)}static fromData=function(t,e){return(new a).fromData(t,e)};static now(){return a.fromJSDate(new Date,!1)}static weekOneStarts(t,e){let i=a.fromData({year:t,month:1,day:1,isDate:!0}),r=i.dayOfWeek(),n=e||a.DEFAULT_WEEK_START;return r>a.THURSDAY&&(i.day+=7),n>a.THURSDAY&&(i.day-=7),i.day-=r-n,i}static getDominicalLetter(t){let e="GFEDCBA",i=(t+(t/4|0)+(t/400|0)-(t/100|0)-1)%7;return a.isLeapYear(t)?e[(i+6)%7]+e[i]:e[i]}static#t=null;static get epochTime(){return this.#t||(this.#t=a.fromData({year:1970,month:1,day:1,hour:0,minute:0,second:0,isDate:!1,timezone:"Z"})),this.#t}static _cmp_attr(t,e,i){return t[i]>e[i]?1:t[i]<e[i]?-1:0}static daysInYearPassedMonth=[[0,31,59,90,120,151,181,212,243,273,304,334,365],[0,31,60,91,121,152,182,213,244,274,305,335,366]];static SUNDAY=1;static MONDAY=2;static TUESDAY=3;static WEDNESDAY=4;static THURSDAY=5;static FRIDAY=6;static SATURDAY=7;static DEFAULT_WEEK_START=2;constructor(t,e){this.wrappedJSObject=this,this._time=Object.create(null),this._time.year=0,this._time.month=1,this._time.day=1,this._time.hour=0,this._time.minute=0,this._time.second=0,this._time.isDate=!1,this.fromData(t,e)}icalclass="icaltime";_cachedUnixTime=null;get icaltype(){return this.isDate?"date":"date-time"}zone=null;_pendingNormalization=!1;get year(){return this._getTimeAttr("year")}set year(t){this._setTimeAttr("year",t)}get month(){return this._getTimeAttr("month")}set month(t){this._setTimeAttr("month",t)}get day(){return this._getTimeAttr("day")}set day(t){this._setTimeAttr("day",t)}get hour(){return this._getTimeAttr("hour")}set hour(t){this._setTimeAttr("hour",t)}get minute(){return 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t?e?(this.zone=m.utcTimezone,this.year=t.getUTCFullYear(),this.month=t.getUTCMonth()+1,this.day=t.getUTCDate(),this.hour=t.getUTCHours(),this.minute=t.getUTCMinutes(),this.second=t.getUTCSeconds()):(this.zone=m.localTimezone,this.year=t.getFullYear(),this.month=t.getMonth()+1,this.day=t.getDate(),this.hour=t.getHours(),this.minute=t.getMinutes(),this.second=t.getSeconds()):this.reset(),this._cachedUnixTime=null,this}fromData(t,e){if(t)for(let[e,i]of Object.entries(t))"icaltype"!==e&&(this[e]=i);if(e&&(this.zone=e),t&&!("isDate"in t)?this.isDate=!("hour"in t):t&&"isDate"in t&&(this.isDate=t.isDate),t&&"timezone"in t){let e=p.get(t.timezone);this.zone=e||m.localTimezone}return t&&"zone"in t&&(this.zone=t.zone),this.zone||(this.zone=m.localTimezone),this._cachedUnixTime=null,this}dayOfWeek(t){let e=t||a.SUNDAY,i=(this.year<<12)+(this.month<<8)+(this.day<<3)+e;if(i in a._dowCache)return a._dowCache[i];let r=this.day,n=this.month+(this.month<3?12:0),s=this.year-(this.month<3?1:0),o=r+s+b(26*(n+1)/10)+b(s/4);return o+=6*b(s/100)+b(s/400),o=(o+7-e)%7+1,a._dowCache[i]=o,o}dayOfYear(){let t=a.isLeapYear(this.year)?1:0;return a.daysInYearPassedMonth[t][this.month-1]+this.day}startOfWeek(t){let e=t||a.SUNDAY,i=this.clone();return i.day-=(this.dayOfWeek()+7-e)%7,i.isDate=!0,i.hour=0,i.minute=0,i.second=0,i}endOfWeek(t){let e=t||a.SUNDAY,i=this.clone();return i.day+=(7-this.dayOfWeek()+e-a.SUNDAY)%7,i.isDate=!0,i.hour=0,i.minute=0,i.second=0,i}startOfMonth(){let t=this.clone();return t.day=1,t.isDate=!0,t.hour=0,t.minute=0,t.second=0,t}endOfMonth(){let t=this.clone();return t.day=a.daysInMonth(t.month,t.year),t.isDate=!0,t.hour=0,t.minute=0,t.second=0,t}startOfYear(){let t=this.clone();return t.day=1,t.month=1,t.isDate=!0,t.hour=0,t.minute=0,t.second=0,t}endOfYear(){let t=this.clone();return t.day=31,t.month=12,t.isDate=!0,t.hour=0,t.minute=0,t.second=0,t}startDoyWeek(t){let e=t||a.SUNDAY,i=this.dayOfWeek()-e;return i<0&&(i+=7),this.dayOfYear()-i}getDominicalLetter(){return a.getDominicalLetter(this.year)}nthWeekDay(t,e){let i,r=a.daysInMonth(this.month,this.year),n=e,s=0,o=this.clone();if(n>=0){o.day=1,0!=n&&n--,s=o.day;let e=t-o.dayOfWeek();e<0&&(e+=7),s+=e,s-=t,i=t}else{o.day=r,n++,i=o.dayOfWeek()-t,i<0&&(i+=7),i=r-i}return i+=7*n,s+i}isNthWeekDay(t,e){let i=this.dayOfWeek();return 0===e&&i===t||this.nthWeekDay(t,e)===this.day}weekNumber(t){let e,i=(this.year<<12)+(this.month<<8)+(this.day<<3)+t;if(i in a._wnCache)return a._wnCache[i];let r=this.clone();r.isDate=!0;let n=this.year;12==r.month&&r.day>25?(e=a.weekOneStarts(n+1,t),r.compare(e)<0?e=a.weekOneStarts(n,t):n++):(e=a.weekOneStarts(n,t),r.compare(e)<0&&(e=a.weekOneStarts(--n,t)));let s=b(r.subtractDate(e).toSeconds()/86400/7)+1;return a._wnCache[i]=s,s}addDuration(t){let e=t.isNegative?-1:1,i=this.second,r=this.minute,n=this.hour,s=this.day;i+=e*t.seconds,r+=e*t.minutes,n+=e*t.hours,s+=e*t.days,s+=7*e*t.weeks,this.second=i,this.minute=r,this.hour=n,this.day=s,this._cachedUnixTime=null}subtractDate(t){let e=this.toUnixTime()+this.utcOffset(),i=t.toUnixTime()+t.utcOffset();return r.fromSeconds(e-i)}subtractDateTz(t){let e=this.toUnixTime(),i=t.toUnixTime();return r.fromSeconds(e-i)}compare(t){if(t instanceof s)return-1*t.compare(this);{let e=this.toUnixTime(),i=t.toUnixTime();return e>i?1:i>e?-1:0}}compareDateOnlyTz(t,e){let i=this.convertToZone(e),r=t.convertToZone(e),n=0;return 0!=(n=a._cmp_attr(i,r,"year"))||0!=(n=a._cmp_attr(i,r,"month"))||(n=a._cmp_attr(i,r,"day")),n}convertToZone(t){let e=this.clone(),i=this.zone.tzid==t.tzid;return this.isDate||i||m.convert_time(e,this.zone,t),e.zone=t,e}utcOffset(){return this.zone==m.localTimezone||this.zone==m.utcTimezone?0:this.zone.utcOffset(this)}toICALString(){let t=this.toString();return t.length>10?ct.icalendar.value["date-time"].toICAL(t):ct.icalendar.value.date.toICAL(t)}toString(){let t=this.year+"-"+O(this.month)+"-"+O(this.day);return this.isDate||(t+="T"+O(this.hour)+":"+O(this.minute)+":"+O(this.second),this.zone===m.utcTimezone&&(t+="Z")),t}toJSDate(){return this.zone==m.localTimezone?this.isDate?new Date(this.year,this.month-1,this.day):new Date(this.year,this.month-1,this.day,this.hour,this.minute,this.second,0):new Date(1e3*this.toUnixTime())}_normalize(){return this._time.isDate&&(this._time.hour=0,this._time.minute=0,this._time.second=0),this.adjust(0,0,0,0),this}adjust(t,e,i,r,n){let 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t=this.utcOffset(),e=Date.UTC(this.year,this.month-1,this.day,this.hour,this.minute,this.second-t);return this._cachedUnixTime=e/1e3,this._cachedUnixTime}toJSON(){let t,e=["year","month","day","hour","minute","second","isDate"],i=Object.create(null),r=0,n=e.length;for(;r<n;r++)t=e[r],i[t]=this[t];return this.zone&&(i.timezone=this.zone.tzid),i}}const o=/[^ \t]/,l=":",h={"^'":'"',"^n":"\n","^^":"^"};function u(t){let e={},i=e.component=[];if(e.stack=[i],u._eachLine(t,(function(t,i){u._handleContentLine(i,e)})),e.stack.length>1)throw new c("invalid ical body. component began but did not end");return e=null,1==i.length?i[0]:i}u.property=function(t,e){let i={component:[[],[]],designSet:e||ct.defaultSet};return u._handleContentLine(t,i),i.component[1][0]},u.component=function(t){return u(t)};class c extends Error{name=this.constructor.name}u.ParserError=c,u._handleContentLine=function(t,e){let 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e.fromSeconds(t),e}constructor(t){this.fromData(t)}hours=0;minutes=0;factor=1;icaltype="utc-offset";clone(){return w.fromSeconds(this.toSeconds())}fromData(t){if(t)for(let[e,i]of Object.entries(t))this[e]=i;this._normalize()}fromSeconds(t){let e=Math.abs(t);return this.factor=t<0?-1:1,this.hours=b(e/3600),e-=3600*this.hours,this.minutes=b(e/60),this}toSeconds(){return this.factor*(60*this.minutes+3600*this.hours)}compare(t){let e=this.toSeconds(),i=t.toSeconds();return(e>i)-(i>e)}_normalize(){let t=this.toSeconds(),e=this.factor;for(;t<-43200;)t+=97200;for(;t>50400;)t-=97200;this.fromSeconds(t),0==t&&(this.factor=e)}toICALString(){return ct.icalendar.value["utc-offset"].toICAL(this.toString())}toString(){return(1==this.factor?"+":"-")+O(this.hours)+":"+O(this.minutes)}}class C extends a{static fromDateAndOrTimeString(t,e){function i(t,e,i){return t?_(t.slice(e,e+i)):null}let 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t,e=this.year,i=this.month,r=this.day,n=this.hour,s=this.minute,a=this.second,o=null!==i,l=null!==r,h=null!==n,u=null!==s,c=null!==a,d=(null!==e?O(e)+(o||l?"-":""):o||l?"--":"")+(o?O(i):"")+(l?"-"+O(r):""),f=(h?O(n):"-")+(h&&u?":":"")+(u?O(s):"")+(h||u?"":"-")+(u&&c?":":"")+(c?O(a):"");if(this.zone===m.utcTimezone)t="Z";else if(this.zone instanceof w)t=this.zone.toString();else if(this.zone===m.localTimezone)t="";else if(this.zone instanceof m){t=w.fromSeconds(this.zone.utcOffset(this)).toString()}else t="";switch(this.icaltype){case"time":return f+t;case"date-and-or-time":case"date-time":return d+("--"==f?"":"T"+f+t);case"date":return d}return null}}class x{static _indexMap={BYSECOND:0,BYMINUTE:1,BYHOUR:2,BYDAY:3,BYMONTHDAY:4,BYYEARDAY:5,BYWEEKNO:6,BYMONTH:7,BYSETPOS:8};static _expandMap={SECONDLY:[1,1,1,1,1,1,1,1],MINUTELY:[2,1,1,1,1,1,1,1],HOURLY:[2,2,1,1,1,1,1,1],DAILY:[2,2,2,1,1,1,1,1],WEEKLY:[2,2,2,2,3,3,1,1],MONTHLY:[2,2,2,2,2,3,3,1],YEARLY:[2,2,2,2,2,2,2,2]};static UNKNOWN=0;static CONTRACT=1;static EXPAND=2;static ILLEGAL=3;constructor(t){this.fromData(t)}completed=!1;rule=null;dtstart=null;last=null;occurrence_number=0;by_indices=null;initialized=!1;by_data=null;days=null;days_index=0;fromData(t){if(this.rule=g(t.rule,L),!this.rule)throw new Error("iterator requires a (ICAL.Recur) rule");if(this.dtstart=g(t.dtstart,a),!this.dtstart)throw new Error("iterator requires a (ICAL.Time) dtstart");if(t.by_data?this.by_data=t.by_data:this.by_data=Y(this.rule.parts,!0),t.occurrence_number&&(this.occurrence_number=t.occurrence_number),this.days=t.days||[],t.last&&(this.last=g(t.last,a)),this.by_indices=t.by_indices,this.by_indices||(this.by_indices={BYSECOND:0,BYMINUTE:0,BYHOUR:0,BYDAY:0,BYMONTH:0,BYWEEKNO:0,BYMONTHDAY:0}),this.initialized=t.initialized||!1,!this.initialized)try{this.init()}catch(t){if(!(t instanceof N))throw t;this.completed=!0}}init(){this.initialized=!0,this.last=this.dtstart.clone();let t=this.by_data;if("BYDAY"in t&&this.sort_byday_rules(t.BYDAY),"BYYEARDAY"in t&&("BYMONTH"in t||"BYWEEKNO"in t||"BYMONTHDAY"in t))throw new Error("Invalid BYYEARDAY rule");if("BYWEEKNO"in t&&"BYMONTHDAY"in t)throw new Error("BYWEEKNO does not fit to BYMONTHDAY");if("MONTHLY"==this.rule.freq&&("BYYEARDAY"in t||"BYWEEKNO"in t))throw new Error("For MONTHLY recurrences neither BYYEARDAY nor BYWEEKNO may appear");if("WEEKLY"==this.rule.freq&&("BYYEARDAY"in t||"BYMONTHDAY"in t))throw new Error("For WEEKLY recurrences neither BYMONTHDAY nor BYYEARDAY may appear");if("YEARLY"!=this.rule.freq&&"BYYEARDAY"in t)throw new Error("BYYEARDAY may only appear in YEARLY 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N}if("MONTHLY"==this.rule.freq)if(this.has_by_data("BYDAY")){let t=null,e=this.last.clone(),i=a.daysInMonth(this.last.month,this.last.year);for(let r of this.by_data.BYDAY){this.last=e.clone();let[n,s]=this.ruleDayOfWeek(r),o=this.last.nthWeekDay(s,n);if(n>=6||n<=-6)throw new Error("Malformed values in BYDAY part");if(o>i||o<=0){if(t&&t.month==e.month)continue;for(;o>i||o<=0;)this.increment_month(),i=a.daysInMonth(this.last.month,this.last.year),o=this.last.nthWeekDay(s,n)}this.last.day=o,(!t||this.last.compare(t)<0)&&(t=this.last.clone())}if(this.last=t.clone(),this.has_by_data("BYMONTHDAY")&&this._byDayAndMonthDay(!0),this.last.day>i||0==this.last.day)throw new Error("Malformed values in BYDAY part")}else if(this.has_by_data("BYMONTHDAY")){this.last.day=1;let t=this.normalizeByMonthDayRules(this.last.year,this.last.month,this.rule.parts.BYMONTHDAY).filter((t=>t>=this.last.day));if(t.length)this.last.day=t[0],this.by_data.BYMONTHDAY=t;else if(!this.next_month()&&!this.next_month()&&!this.next_month())throw new N}}next(t=!1){let e,i=this.last?this.last.clone():null;if((this.rule.count&&this.occurrence_number>=this.rule.count||this.rule.until&&this.last.compare(this.rule.until)>0)&&(this.completed=!0),this.completed)return null;if(0==this.occurrence_number&&this.last.compare(this.dtstart)>=0)return this.occurrence_number++,this.last;let r=0;do{switch(e=1,this.rule.freq){case"SECONDLY":this.next_second();break;case"MINUTELY":this.next_minute();break;case"HOURLY":this.next_hour();break;case"DAILY":this.next_day();break;case"WEEKLY":this.next_week();break;case"MONTHLY":if(e=this.next_month(),e)r=0;else if(336==++r)return this.completed=!0,null;break;case"YEARLY":if(e=this.next_year(),e)r=0;else if(28==++r)return this.completed=!0,null;break;default:return null}}while(!this.check_contracting_rules()||this.last.compare(this.dtstart)<0||!e);if(0==this.last.compare(i)){if(t)throw new Error("Same occurrence found twice, protecting you from death by recursion");this.next(!0)}return this.rule.until&&this.last.compare(this.rule.until)>0?(this.completed=!0,null):(this.occurrence_number++,this.last)}next_second(){return this.next_generic("BYSECOND","SECONDLY","second","minute")}increment_second(t){return this.increment_generic(t,"second",60,"minute")}next_minute(){return this.next_generic("BYMINUTE","MINUTELY","minute","hour","next_second")}increment_minute(t){return this.increment_generic(t,"minute",60,"hour")}next_hour(){return this.next_generic("BYHOUR","HOURLY","hour","monthday","next_minute")}increment_hour(t){this.increment_generic(t,"hour",24,"monthday")}next_day(){let t="DAILY"==this.rule.freq;return 0==this.next_hour()||(t?this.increment_monthday(this.rule.interval):this.increment_monthday(1)),0}next_week(){let t=0;if(0==this.next_weekday_by_week())return t;if(this.has_by_data("BYWEEKNO")){this.by_indices.BYWEEKNO++,this.by_indices.BYWEEKNO==this.by_data.BYWEEKNO.length&&(this.by_indices.BYWEEKNO=0,t=1),this.last.month=1,this.last.day=1;let e=this.by_data.BYWEEKNO[this.by_indices.BYWEEKNO];this.last.day+=7*e,t&&this.increment_year(1)}else this.increment_monthday(7*this.rule.interval);return t}normalizeByMonthDayRules(t,e,i){let r,n=a.daysInMonth(e,t),s=[],o=0,l=i.length;for(;o<l;o++){if(r=parseInt(i[o],10),isNaN(r))throw new Error("Invalid BYMONTHDAY value");if(!(Math.abs(r)>n)){if(r<0)r=n+(r+1);else if(0===r)continue;-1===s.indexOf(r)&&s.push(r)}}return s.sort((function(t,e){return t-e}))}_byDayAndMonthDay(t){let e,i,r,n,s=this.by_data.BYDAY,o=0,l=s.length,h=0,u=this,c=this.last.day;function d(){for(n=a.daysInMonth(u.last.month,u.last.year),e=u.normalizeByMonthDayRules(u.last.year,u.last.month,u.by_data.BYMONTHDAY),r=e.length;e[o]<=c&&(!t||e[o]!=c)&&o<r-1;)o++}function m(){c=0,u.increment_month(),o=0,d()}d(),t&&(c-=1);let f=48;for(;!h&&f;){if(f--,i=c+1,i>n){m();continue}let t=e[o++];if(t>=i){c=t;for(let t=0;t<l;t++){let e=this.ruleDayOfWeek(s[t]),i=e[0],r=e[1];if(this.last.day=c,this.last.isNthWeekDay(r,i)){h=1;break}}h||o!==r||m()}else m()}if(f<=0)throw new Error("Malformed values in BYDAY combined with BYMONTHDAY parts");return h}next_month(){let t=1;if(0==this.next_hour())return t;if(this.has_by_data("BYDAY")&&this.has_by_data("BYMONTHDAY"))t=this._byDayAndMonthDay();else if(this.has_by_data("BYDAY")){let e,i=a.daysInMonth(this.last.month,this.last.year),r=0,n=0;if(this.has_by_data("BYSETPOS")){let t=this.last.day;for(let e=1;e<=i;e++)this.last.day=e,this.is_day_in_byday(this.last)&&(n++,e<=t&&r++);this.last.day=t}for(t=0,e=this.last.day+1;e<=i;e++)if(this.last.day=e,this.is_day_in_byday(this.last)&&(!this.has_by_data("BYSETPOS")||this.check_set_position(++r)||this.check_set_position(r-n-1))){t=1;break}e>i&&(this.last.day=1,this.increment_month(),this.is_day_in_byday(this.last)?this.has_by_data("BYSETPOS")&&!this.check_set_position(1)||(t=1):t=0)}else if(this.has_by_data("BYMONTHDAY")){if(this.by_indices.BYMONTHDAY++,this.by_indices.BYMONTHDAY>=this.by_data.BYMONTHDAY.length&&(this.by_indices.BYMONTHDAY=0,this.increment_month(),this.by_indices.BYMONTHDAY>=this.by_data.BYMONTHDAY.length))return 0;let e=a.daysInMonth(this.last.month,this.last.year),i=this.by_data.BYMONTHDAY[this.by_indices.BYMONTHDAY];i<0&&(i=e+i+1),i>e?(this.last.day=1,t=this.is_day_in_byday(this.last)):this.last.day=i}else{this.increment_month();let e=a.daysInMonth(this.last.month,this.last.year);this.by_data.BYMONTHDAY[0]>e?t=0:this.last.day=this.by_data.BYMONTHDAY[0]}return t}next_weekday_by_week(){let t=0;if(0==this.next_hour())return t;if(!this.has_by_data("BYDAY"))return 1;for(;;){let e=new a;this.by_indices.BYDAY++,this.by_indices.BYDAY==Object.keys(this.by_data.BYDAY).length&&(this.by_indices.BYDAY=0,t=1);let i=this.by_data.BYDAY[this.by_indices.BYDAY],r=this.ruleDayOfWeek(i)[1];r-=this.rule.wkst,r<0&&(r+=7),e.year=this.last.year,e.month=this.last.month,e.day=this.last.day;let n=e.startDoyWeek(this.rule.wkst);if(r+n<1&&!t)continue;let s=a.fromDayOfYear(n+r,this.last.year);return this.last.year=s.year,this.last.month=s.month,this.last.day=s.day,t}}next_year(){return 0==this.next_hour()?0:0!=this.days.length&&++this.days_index!=this.days.length||(this.days_index=0,this.increment_year(this.rule.interval),this.has_by_data("BYMONTHDAY")&&(this.by_data.BYMONTHDAY=this.normalizeByMonthDayRules(this.last.year,this.last.month,this.rule.parts.BYMONTHDAY)),this.expand_year_days(this.last.year),0!=this.days.length)?this._nextByYearDay():0}_nextByYearDay(){let t=this.days[this.days_index],e=this.last.year;if(366==Math.abs(t)&&!a.isLeapYear(this.last.year))return 0;t<1&&(t+=1,e+=1);let i=a.fromDayOfYear(t,e);return this.last.day=i.day,this.last.month=i.month,1}ruleDayOfWeek(t,e){let i=t.match(/([+-]?[0-9])?(MO|TU|WE|TH|FR|SA|SU)/);if(i){return[parseInt(i[1]||0,10),t=L.icalDayToNumericDay(i[2],e)]}return[0,0]}next_generic(t,e,i,r,n){let s=t in this.by_data,a=this.rule.freq==e,o=0;if(n&&0==this[n]())return o;if(s){this.by_indices[t]++;let e=this.by_data[t];this.by_indices[t]==e.length&&(this.by_indices[t]=0,o=1),this.last[i]=e[this.by_indices[t]]}else a&&this["increment_"+i](this.rule.interval);return s&&o&&a&&this["increment_"+r](1),o}increment_monthday(t){for(let e=0;e<t;e++){let t=a.daysInMonth(this.last.month,this.last.year);this.last.day++,this.last.day>t&&(this.last.day-=t,this.increment_month())}}increment_month(){if(this.last.day=1,this.has_by_data("BYMONTH"))this.by_indices.BYMONTH++,this.by_indices.BYMONTH==this.by_data.BYMONTH.length&&(this.by_indices.BYMONTH=0,this.increment_year(1)),this.last.month=this.by_data.BYMONTH[this.by_indices.BYMONTH];else{"MONTHLY"==this.rule.freq?this.last.month+=this.rule.interval:this.last.month++,this.last.month--;let t=b(this.last.month/12);this.last.month%=12,this.last.month++,0!=t&&this.increment_year(t)}this.has_by_data("BYMONTHDAY")&&(this.by_data.BYMONTHDAY=this.normalizeByMonthDayRules(this.last.year,this.last.month,this.rule.parts.BYMONTHDAY))}increment_year(t){this.last.day=1,this.last.year+=t}increment_generic(t,e,i,r){this.last[e]+=t;let n=b(this.last[e]/i);this.last[e]%=i,0!=n&&this["increment_"+r](n)}has_by_data(t){return t in this.rule.parts}expand_year_days(t){let e=new a;this.days=[];let i={},r=["BYDAY","BYWEEKNO","BYMONTHDAY","BYMONTH","BYYEARDAY"];for(let t of r)t in this.rule.parts&&(i[t]=this.rule.parts[t]);if("BYMONTH"in i&&"BYWEEKNO"in i){let r=1,n={};e.year=t,e.isDate=!0;for(let i=0;i<this.by_data.BYMONTH.length;i++){let r=this.by_data.BYMONTH[i];e.month=r,e.day=1;let s=e.weekNumber(this.rule.wkst);e.day=a.daysInMonth(r,t);let o=e.weekNumber(this.rule.wkst);for(i=s;i<o;i++)n[i]=1}for(let t=0;t<this.by_data.BYWEEKNO.length&&r;t++){this.by_data.BYWEEKNO[t]<52?r&=n[t]:r=0}r?delete i.BYMONTH:delete i.BYWEEKNO}let n=Object.keys(i).length;if(0==n){let t=this.dtstart.clone();t.year=this.last.year,this.days.push(t.dayOfYear())}else if(1==n&&"BYMONTH"in i)for(let e of this.by_data.BYMONTH){let i=this.dtstart.clone();i.year=t,i.month=e,i.isDate=!0,this.days.push(i.dayOfYear())}else if(1==n&&"BYMONTHDAY"in i)for(let e of this.by_data.BYMONTHDAY){let i=this.dtstart.clone();if(e<0){e=e+a.daysInMonth(i.month,t)+1}i.day=e,i.year=t,i.isDate=!0,this.days.push(i.dayOfYear())}else if(2==n&&"BYMONTHDAY"in i&&"BYMONTH"in i)for(let i of this.by_data.BYMONTH){let r=a.daysInMonth(i,t);for(let n of this.by_data.BYMONTHDAY)n<0&&(n=n+r+1),e.day=n,e.month=i,e.year=t,e.isDate=!0,this.days.push(e.dayOfYear())}else if(1==n&&"BYWEEKNO"in i);else if(2==n&&"BYWEEKNO"in i&&"BYMONTHDAY"in i);else if(1==n&&"BYDAY"in i)this.days=this.days.concat(this.expand_by_day(t));else if(2==n&&"BYDAY"in i&&"BYMONTH"in i){for(let i of this.by_data.BYMONTH){let r=a.daysInMonth(i,t);e.year=t,e.month=i,e.day=1,e.isDate=!0;let n=e.dayOfWeek(),s=e.dayOfYear()-1;e.day=r;let o=e.dayOfWeek();if(this.has_by_data("BYSETPOS")){let t=[];for(let i=1;i<=r;i++)e.day=i,this.is_day_in_byday(e)&&t.push(i);for(let e=0;e<t.length;e++)(this.check_set_position(e+1)||this.check_set_position(e-t.length))&&this.days.push(s+t[e])}else for(let t of this.by_data.BYDAY){let e,i=this.ruleDayOfWeek(t),a=i[0],l=i[1],h=(l+7-n)%7+1,u=r-(o+7-l)%7;if(0==a)for(let t=h;t<=r;t+=7)this.days.push(s+t);else a>0?(e=h+7*(a-1),e<=r&&this.days.push(s+e)):(e=u+7*(a+1),e>0&&this.days.push(s+e))}}this.days.sort((function(t,e){return t-e}))}else if(2==n&&"BYDAY"in i&&"BYMONTHDAY"in i){let e=this.expand_by_day(t);for(let i of e){let e=a.fromDayOfYear(i,t);this.by_data.BYMONTHDAY.indexOf(e.day)>=0&&this.days.push(i)}}else if(3==n&&"BYDAY"in i&&"BYMONTHDAY"in i&&"BYMONTH"in i){let e=this.expand_by_day(t);for(let i of e){let e=a.fromDayOfYear(i,t);this.by_data.BYMONTH.indexOf(e.month)>=0&&this.by_data.BYMONTHDAY.indexOf(e.day)>=0&&this.days.push(i)}}else if(2==n&&"BYDAY"in i&&"BYWEEKNO"in i){let e=this.expand_by_day(t);for(let i of e){let e=a.fromDayOfYear(i,t).weekNumber(this.rule.wkst);this.by_data.BYWEEKNO.indexOf(e)&&this.days.push(i)}}else if(3==n&&"BYDAY"in i&&"BYWEEKNO"in i&&"BYMONTHDAY"in i);else if(1==n&&"BYYEARDAY"in i)this.days=this.days.concat(this.by_data.BYYEARDAY);else if(2==n&&"BYYEARDAY"in i&&"BYDAY"in i){let e=a.isLeapYear(t)?366:365,i=new Set(this.expand_by_day(t));for(let t of this.by_data.BYYEARDAY)t<0&&(t+=e+1),i.has(t)&&this.days.push(t)}else this.days=[];let s=a.isLeapYear(t)?366:365;return this.days.sort(((t,e)=>(t<0&&(t+=s+1),e<0&&(e+=s+1),t-e))),0}expand_by_day(t){let e=[],i=this.last.clone();i.year=t,i.month=1,i.day=1,i.isDate=!0;let r=i.dayOfWeek();i.month=12,i.day=31,i.isDate=!0;let n=i.dayOfWeek(),s=i.dayOfYear();for(let t of this.by_data.BYDAY){let i=this.ruleDayOfWeek(t),a=i[0],o=i[1];if(0==a){for(let t=(o+7-r)%7+1;t<=s;t+=7)e.push(t)}else if(a>0){let t;t=o>=r?o-r+1:o-r+8,e.push(t+7*(a-1))}else{let t;a=-a,t=o<=n?s-n+o:s-n+o-7,e.push(t-7*(a-1))}}return e}is_day_in_byday(t){if(this.by_data.BYDAY)for(let e of this.by_data.BYDAY){let i=this.ruleDayOfWeek(e),r=i[0],n=i[1],s=t.dayOfWeek();if(0==r&&n==s||t.nthWeekDay(n,r)==t.day)return 1}return 0}check_set_position(t){if(this.has_by_data("BYSETPOS")){return-1!==this.by_data.BYSETPOS.indexOf(t)}return!1}sort_byday_rules(t){for(let e=0;e<t.length;e++)for(let i=0;i<e;i++){if(this.ruleDayOfWeek(t[i],this.rule.wkst)[1]>this.ruleDayOfWeek(t[e],this.rule.wkst)[1]){let r=t[e];t[e]=t[i],t[i]=r}}}check_contract_restriction(t,e){let i=x._indexMap[t],r=x._expandMap[this.rule.freq][i],n=!1;if(t in this.by_data&&r==x.CONTRACT){let i=this.by_data[t];for(let t of i)if(t==e){n=!0;break}}else n=!0;return n}check_contracting_rules(){let t=this.last.dayOfWeek(),e=this.last.weekNumber(this.rule.wkst),i=this.last.dayOfYear();return this.check_contract_restriction("BYSECOND",this.last.second)&&this.check_contract_restriction("BYMINUTE",this.last.minute)&&this.check_contract_restriction("BYHOUR",this.last.hour)&&this.check_contract_restriction("BYDAY",L.numericDayToIcalDay(t))&&this.check_contract_restriction("BYWEEKNO",e)&&this.check_contract_restriction("BYMONTHDAY",this.last.day)&&this.check_contract_restriction("BYMONTH",this.last.month)&&this.check_contract_restriction("BYYEARDAY",i)}setup_defaults(t,e,i){let r=x._indexMap[t];return x._expandMap[this.rule.freq][r]!=x.CONTRACT&&(t in this.by_data||(this.by_data[t]=[i]),this.rule.freq!=e)?this.by_data[t][0]:i}toJSON(){let t=Object.create(null);return t.initialized=this.initialized,t.rule=this.rule.toJSON(),t.dtstart=this.dtstart.toJSON(),t.by_data=this.by_data,t.days=this.days,t.last=this.last.toJSON(),t.by_indices=this.by_indices,t.occurrence_number=this.occurrence_number,t}}class N extends Error{constructor(){super("Recurrence rule has no valid occurrences")}}const v=/^(SU|MO|TU|WE|TH|FR|SA)$/,I=/^([+-])?(5[0-3]|[1-4][0-9]|[1-9])?(SU|MO|TU|WE|TH|FR|SA)$/,B={SU:a.SUNDAY,MO:a.MONDAY,TU:a.TUESDAY,WE:a.WEDNESDAY,TH:a.THURSDAY,FR:a.FRIDAY,SA:a.SATURDAY},M=Object.fromEntries(Object.entries(B).map((t=>t.reverse()))),z=["SECONDLY","MINUTELY","HOURLY","DAILY","WEEKLY","MONTHLY","YEARLY"];class L{static fromString(t){let e=this._stringToData(t,!1);return new L(e)}static fromData(t){return new L(t)}static _stringToData(t,e){let i=Object.create(null),r=t.split(";"),n=r.length;for(let t=0;t<n;t++){let n=r[t].split("="),s=n[0].toUpperCase(),a=n[0].toLowerCase(),o=e?a:s,l=n[1];if(s in U){let t=l.split(","),e=new Set;for(let i of t)e.add(U[s](i));t=[...e],i[o]=1==t.length?t[0]:t}else s in P?P[s](l,i,e):i[a]=l}return i}static icalDayToNumericDay(t,e){let i=e||a.SUNDAY;return(B[t]-i+7)%7+1}static numericDayToIcalDay(t,e){let i=t+(e||a.SUNDAY)-a.SUNDAY;return i>7&&(i-=7),M[i]}constructor(t){this.wrappedJSObject=this,this.parts={},t&&"object"==typeof t&&this.fromData(t)}parts=null;interval=1;wkst=a.MONDAY;until=null;count=null;freq=null;icalclass="icalrecur";icaltype="recur";iterator(t){return new x({rule:this,dtstart:t})}clone(){return new L(this.toJSON())}isFinite(){return!(!this.count&&!this.until)}isByCount(){return!(!this.count||this.until)}addComponent(t,e){let i=t.toUpperCase();i in this.parts?this.parts[i].push(e):this.parts[i]=[e]}setComponent(t,e){this.parts[t.toUpperCase()]=e.slice()}getComponent(t){let e=t.toUpperCase();return e in this.parts?this.parts[e].slice():[]}getNextOccurrence(t,e){let i,r=this.iterator(t);do{i=r.next()}while(i&&i.compare(e)<=0);return i&&e.zone&&(i.zone=e.zone),i}fromData(t){for(let e in t){let i=e.toUpperCase();i in U?Array.isArray(t[e])?this.parts[i]=t[e]:this.parts[i]=[t[e]]:this[e]=t[e]}this.interval&&"number"!=typeof this.interval&&P.INTERVAL(this.interval,this),this.wkst&&"number"!=typeof this.wkst&&(this.wkst=L.icalDayToNumericDay(this.wkst)),!this.until||this.until instanceof a||(this.until=a.fromString(this.until))}toJSON(){let t=Object.create(null);t.freq=this.freq,this.count&&(t.count=this.count),this.interval>1&&(t.interval=this.interval);for(let[e,i]of Object.entries(this.parts))Array.isArray(i)&&1==i.length?t[e.toLowerCase()]=i[0]:t[e.toLowerCase()]=Y(i);return this.until&&(t.until=this.until.toString()),"wkst"in this&&this.wkst!==a.DEFAULT_WEEK_START&&(t.wkst=L.numericDayToIcalDay(this.wkst)),t}toString(){let t="FREQ="+this.freq;this.count&&(t+=";COUNT="+this.count),this.interval>1&&(t+=";INTERVAL="+this.interval);for(let[e,i]of Object.entries(this.parts))t+=";"+e+"="+i;return this.until&&(t+=";UNTIL="+this.until.toICALString()),"wkst"in this&&this.wkst!==a.DEFAULT_WEEK_START&&(t+=";WKST="+L.numericDayToIcalDay(this.wkst)),t}}function k(t,e,i,r){let n=r;if("+"===r[0]&&(n=r.slice(1)),n=_(n),void 0!==e&&r<e)throw new Error(t+': invalid value "'+r+'" must be > '+e);if(void 0!==i&&r>i)throw new Error(t+': invalid value "'+r+'" must be < '+e);return n}const P={FREQ:function(t,e,i){if(-1===z.indexOf(t))throw new Error('invalid frequency "'+t+'" expected: "'+z.join(", ")+'"');e.freq=t},COUNT:function(t,e,i){e.count=_(t)},INTERVAL:function(t,e,i){e.interval=_(t),e.interval<1&&(e.interval=1)},UNTIL:function(t,e,i){t.length>10?e.until=ct.icalendar.value["date-time"].fromICAL(t):e.until=ct.icalendar.value.date.fromICAL(t),i||(e.until=a.fromString(e.until))},WKST:function(t,e,i){if(!v.test(t))throw new Error('invalid WKST value "'+t+'"');e.wkst=L.icalDayToNumericDay(t)}},U={BYSECOND:k.bind(void 0,"BYSECOND",0,60),BYMINUTE:k.bind(void 0,"BYMINUTE",0,59),BYHOUR:k.bind(void 0,"BYHOUR",0,23),BYDAY:function(t){if(I.test(t))return t;throw new Error('invalid BYDAY value "'+t+'"')},BYMONTHDAY:k.bind(void 0,"BYMONTHDAY",-31,31),BYYEARDAY:k.bind(void 0,"BYYEARDAY",-366,366),BYWEEKNO:k.bind(void 0,"BYWEEKNO",-53,53),BYMONTH:k.bind(void 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this._hydratedComponentCount++,this._components[t]=e}_hydrateProperty(t){if(this._properties||(this._properties=[],this._hydratedPropertyCount=0),this._properties[t])return this._properties[t];let e=new yt(this.jCal[1][t],this);return this._hydratedPropertyCount++,this._properties[t]=e}getFirstSubcomponent(t){if(t){let e=0,i=this.jCal[2],r=i.length;for(;e<r;e++)if(i[e][0]===t){return this._hydrateComponent(e)}}else if(this.jCal[2].length)return this._hydrateComponent(0);return null}getAllSubcomponents(t){let e=this.jCal[2].length,i=0;if(t){let r=this.jCal[2],n=[];for(;i<e;i++)t===r[i][0]&&n.push(this._hydrateComponent(i));return n}if(!this._components||this._hydratedComponentCount!==e)for(;i<e;i++)this._hydrateComponent(i);return this._components||[]}hasProperty(t){let e=this.jCal[1],i=e.length,r=0;for(;r<i;r++)if(e[r][0]===t)return!0;return!1}getFirstProperty(t){if(t){let e=0,i=this.jCal[1],r=i.length;for(;e<r;e++)if(i[e][0]===t){return this._hydrateProperty(e)}}else if(this.jCal[1].length)return this._hydrateProperty(0);return null}getFirstPropertyValue(t){let e=this.getFirstProperty(t);return e?e.getFirstValue():null}getAllProperties(t){let e=this.jCal[1].length,i=0;if(t){let r=this.jCal[1],n=[];for(;i<e;i++)t===r[i][0]&&n.push(this._hydrateProperty(i));return n}if(!this._properties||this._hydratedPropertyCount!==e)for(;i<e;i++)this._hydrateProperty(i);return this._properties||[]}_removeObjectByIndex(t,e,i){if((e=e||[])[i]){let t=e[i];"parent"in t&&(t.parent=null)}e.splice(i,1),this.jCal[t].splice(i,1)}_removeObject(t,e,i){let r=0,n=this.jCal[t],s=n.length,a=this[e];if("string"==typeof i){for(;r<s;r++)if(n[r][0]===i)return this._removeObjectByIndex(t,a,r),!0}else if(a)for(;r<s;r++)if(a[r]&&a[r]===i)return this._removeObjectByIndex(t,a,r),!0;return!1}_removeAllObjects(t,e,i){let r=this[e],n=this.jCal[t],s=n.length-1;for(;s>=0;s--)i&&n[s][0]!==i||this._removeObjectByIndex(t,r,s)}addSubcomponent(t){this._components||(this._components=[],this._hydratedComponentCount=0),t.parent&&t.parent.removeSubcomponent(t);let e=this.jCal[2].push(t.jCal);return this._components[e-1]=t,this._hydratedComponentCount++,t.parent=this,t}removeSubcomponent(t){let e=this._removeObject(2,"_components",t);return e&&this._hydratedComponentCount--,e}removeAllSubcomponents(t){let e=this._removeAllObjects(2,"_components",t);return this._hydratedComponentCount=0,e}addProperty(t){if(!(t instanceof yt))throw new TypeError("must be instance of ICAL.Property");this._properties||(this._properties=[],this._hydratedPropertyCount=0),t.parent&&t.parent.removeProperty(t);let e=this.jCal[1].push(t.jCal);return this._properties[e-1]=t,this._hydratedPropertyCount++,t.parent=this,t}addPropertyWithValue(t,e){let i=new yt(t);return i.setValue(e),this.addProperty(i),i}updatePropertyWithValue(t,e){let i=this.getFirstProperty(t);return i?i.setValue(e):i=this.addPropertyWithValue(t,e),i}removeProperty(t){let e=this._removeObject(1,"_properties",t);return e&&this._hydratedPropertyCount--,e}removeAllProperties(t){let e=this._removeAllObjects(1,"_properties",t);return this._hydratedPropertyCount=0,e}toJSON(){return this.jCal}toString(){return pt.component(this.jCal,this._designSet)}getTimeZoneByID(t){if(this.parent)return this.parent.getTimeZoneByID(t);if(!this._timezoneCache)return null;if(this._timezoneCache.has(t))return this._timezoneCache.get(t);const e=this.getAllSubcomponents("vtimezone");for(const i of e)if(i.getFirstProperty("tzid").getFirstValue()===t){const e=new m({component:i,tzid:t});return this._timezoneCache.set(t,e),e}return null}}class gt{constructor(t){this.ruleDates=[],this.exDates=[],this.fromData(t)}complete=!1;ruleIterators=null;ruleDates=null;exDates=null;ruleDateInc=0;exDateInc=0;exDate=null;ruleDate=null;dtstart=null;last=null;fromData(t){let e=g(t.dtstart,a);if(!e)throw new Error(".dtstart (ICAL.Time) must be given");if(this.dtstart=e,t.component)this._init(t.component);else{if(this.last=g(t.last,a)||e.clone(),!t.ruleIterators)throw new Error(".ruleIterators or .component must be given");this.ruleIterators=t.ruleIterators.map((function(t){return g(t,x)})),this.ruleDateInc=t.ruleDateInc,this.exDateInc=t.exDateInc,t.ruleDates&&(this.ruleDates=t.ruleDates.map((t=>g(t,a))),this.ruleDate=this.ruleDates[this.ruleDateInc]),t.exDates&&(this.exDates=t.exDates.map((t=>g(t,a))),this.exDate=this.exDates[this.exDateInc]),void 0!==t.complete&&(this.complete=t.complete)}}_compare_special(t,e){return!t.isDate&&e.isDate?new a({year:t.year,month:t.month,day:t.day}).compare(e):t.compare(e)}next(){let t,e,i,r=0;for(;;){if(r++>500)throw new Error("max tries have occurred, rule may be impossible to fulfill.");if(e=this.ruleDate,t=this._nextRecurrenceIter(this.last),!e&&!t){this.complete=!0;break}if((!e||t&&e.compare(t.last)>0)&&(e=t.last.clone(),t.next()),this.ruleDate===e&&this._nextRuleDay(),this.last=e,!this.exDate||(i=this._compare_special(this.last,this.exDate),i>0&&this._nextExDay(),0!==i))return this.last;this._nextExDay()}}toJSON(){function t(t){return t.toJSON()}let e=Object.create(null);return e.ruleIterators=this.ruleIterators.map(t),this.ruleDates&&(e.ruleDates=this.ruleDates.map(t)),this.exDates&&(e.exDates=this.exDates.map(t)),e.ruleDateInc=this.ruleDateInc,e.exDateInc=this.exDateInc,e.last=this.last.toJSON(),e.dtstart=this.dtstart.toJSON(),e.complete=this.complete,e}_extractDates(t,e){let i=[],r=t.getAllProperties(e);for(let t=0,e=r.length;t<e;t++)for(let e of r[t].getValues()){let t=T(i,e,((t,e)=>t.compare(e)));i.splice(t,0,e)}return i}_init(t){if(this.ruleIterators=[],this.last=this.dtstart.clone(),!t.hasProperty("rdate")&&!t.hasProperty("rrule")&&!t.hasProperty("recurrence-id"))return this.ruleDate=this.last.clone(),void(this.complete=!0);if(t.hasProperty("rdate")&&(this.ruleDates=this._extractDates(t,"rdate"),this.ruleDates[0]&&this.ruleDates[0].compare(this.dtstart)<0?(this.ruleDateInc=0,this.last=this.ruleDates[0].clone()):this.ruleDateInc=T(this.ruleDates,this.last,((t,e)=>t.compare(e))),this.ruleDate=this.ruleDates[this.ruleDateInc]),t.hasProperty("rrule")){let e,i,r=t.getAllProperties("rrule"),n=0,s=r.length;for(;n<s;n++)e=r[n].getFirstValue(),i=e.iterator(this.dtstart),this.ruleIterators.push(i),i.next()}t.hasProperty("exdate")&&(this.exDates=this._extractDates(t,"exdate"),this.exDateInc=T(this.exDates,this.last,this._compare_special),this.exDate=this.exDates[this.exDateInc])}_nextExDay(){this.exDate=this.exDates[++this.exDateInc]}_nextRuleDay(){this.ruleDate=this.ruleDates[++this.ruleDateInc]}_nextRecurrenceIter(){let t=this.ruleIterators;if(0===t.length)return null;let e,i,r,n=t.length,s=0;for(;s<n;s++)e=t[s],i=e.last,e.completed?(n--,0!==s&&s--,t.splice(s,1)):(!r||r.last.compare(i)>0)&&(r=e);return r}}class Dt{constructor(t,e){t instanceof _t||(e=t,t=null),this.component=t||new _t("vevent"),this._rangeExceptionCache=Object.create(null),this.exceptions=Object.create(null),this.rangeExceptions=[],e&&e.strictExceptions&&(this.strictExceptions=e.strictExceptions),e&&e.exceptions?e.exceptions.forEach(this.relateException,this):this.component.parent&&!this.isRecurrenceException()&&this.component.parent.getAllSubcomponents("vevent").forEach((function(t){t.hasProperty("recurrence-id")&&this.relateException(t)}),this)}static THISANDFUTURE="THISANDFUTURE";exceptions=null;strictExceptions=!1;relateException(t){if(this.isRecurrenceException())throw new Error("cannot relate exception to exceptions");if(t instanceof _t&&(t=new Dt(t)),this.strictExceptions&&t.uid!==this.uid)throw new Error("attempted to relate unrelated exception");let e=t.recurrenceId.toString();if(this.exceptions[e]=t,t.modifiesFuture()){let i=[t.recurrenceId.toUnixTime(),e],r=T(this.rangeExceptions,i,Tt);this.rangeExceptions.splice(r,0,i)}}modifiesFuture(){if(!this.component.hasProperty("recurrence-id"))return!1;return this.component.getFirstProperty("recurrence-id").getParameter("range")===Dt.THISANDFUTURE}findRangeException(t){if(!this.rangeExceptions.length)return null;let e=t.toUnixTime(),i=T(this.rangeExceptions,[e],Tt);if(i-=1,i<0)return null;let r=this.rangeExceptions[i];return e<r[0]?null:r[1]}getOccurrenceDetails(t){let e,i=t.toString(),r=t.convertToZone(m.utcTimezone).toString(),n={recurrenceId:t};if(i in this.exceptions)e=n.item=this.exceptions[i],n.startDate=e.startDate,n.endDate=e.endDate,n.item=e;else if(r in this.exceptions)e=this.exceptions[r],n.startDate=e.startDate,n.endDate=e.endDate,n.item=e;else{let e,i=this.findRangeException(t);if(i){let r=this.exceptions[i];n.item=r;let s=this._rangeExceptionCache[i];if(!s){let t=r.recurrenceId.clone(),e=r.startDate.clone();t.zone=e.zone,s=e.subtractDate(t),this._rangeExceptionCache[i]=s}let a=t.clone();a.zone=r.startDate.zone,a.addDuration(s),e=a.clone(),e.addDuration(r.duration),n.startDate=a,n.endDate=e}else e=t.clone(),e.addDuration(this.duration),n.endDate=e,n.startDate=t,n.item=this}return n}iterator(t){return new gt({component:this.component,dtstart:t||this.startDate})}isRecurring(){let t=this.component;return t.hasProperty("rrule")||t.hasProperty("rdate")}isRecurrenceException(){return this.component.hasProperty("recurrence-id")}getRecurrenceTypes(){let t=this.component.getAllProperties("rrule"),e=0,i=t.length,r=Object.create(null);for(;e<i;e++){r[t[e].getFirstValue().freq]=!0}return r}get uid(){return this._firstProp("uid")}set uid(t){this._setProp("uid",t)}get startDate(){return this._firstProp("dtstart")}set startDate(t){this._setTime("dtstart",t)}get endDate(){let t=this._firstProp("dtend");if(!t){let e=this._firstProp("duration");t=this.startDate.clone(),e?t.addDuration(e):t.isDate&&(t.day+=1)}return t}set endDate(t){this.component.hasProperty("duration")&&this.component.removeProperty("duration"),this._setTime("dtend",t)}get duration(){let t=this._firstProp("duration");return t||this.endDate.subtractDateTz(this.startDate)}set duration(t){this.component.hasProperty("dtend")&&this.component.removeProperty("dtend"),this._setProp("duration",t)}get location(){return this._firstProp("location")}set location(t){this._setProp("location",t)}get attendees(){return this.component.getAllProperties("attendee")}get summary(){return this._firstProp("summary")}set summary(t){this._setProp("summary",t)}get description(){return this._firstProp("description")}set description(t){this._setProp("description",t)}get color(){return this._firstProp("color")}set color(t){this._setProp("color",t)}get organizer(){return this._firstProp("organizer")}set organizer(t){this._setProp("organizer",t)}get sequence(){return this._firstProp("sequence")}set sequence(t){this._setProp("sequence",t)}get recurrenceId(){return this._firstProp("recurrence-id")}set recurrenceId(t){this._setTime("recurrence-id",t)}_setTime(t,e){let i=this.component.getFirstProperty(t);i||(i=new yt(t),this.component.addProperty(i)),e.zone===m.localTimezone||e.zone===m.utcTimezone?i.removeParameter("tzid"):i.setParameter("tzid",e.zone.tzid),i.setValue(e)}_setProp(t,e){this.component.updatePropertyWithValue(t,e)}_firstProp(t){return this.component.getFirstPropertyValue(t)}toString(){return this.component.toString()}}function Tt(t,e){return t[0]>e[0]?1:e[0]>t[0]?-1:0}var Yt={foldLength:75,debug:!1,newLineChar:"\r\n",Binary:t,Component:_t,ComponentParser:class{constructor(t){void 0===t&&(t={});for(let[e,i]of Object.entries(t))this[e]=i}parseEvent=!0;parseTimezone=!0;oncomplete=function(){};onerror=function(t){};ontimezone=function(t){};onevent=function(t){};process(t){"string"==typeof t&&(t=u(t)),t instanceof _t||(t=new _t(t));let e,i=t.getAllSubcomponents(),r=0,n=i.length;for(;r<n;r++)switch(e=i[r],e.name){case"vtimezone":if(this.parseTimezone){let t=e.getFirstPropertyValue("tzid");t&&this.ontimezone(new m({tzid:t,component:e}))}break;case"vevent":this.parseEvent&&this.onevent(new Dt(e));break;default:continue}this.oncomplete()}},Duration:r,Event:Dt,Period:s,Property:yt,Recur:L,RecurExpansion:gt,RecurIterator:x,Time:a,Timezone:m,TimezoneService:p,UtcOffset:w,VCardTime:C,parse:u,stringify:pt,design:ct,helpers:E};export{Yt as default};