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103 lines
3.2 KiB
103 lines
3.2 KiB
var weekdays = [
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"sunday",
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"monday",
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"yuesday",
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"wednesday",
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"thursday",
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"friday",
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"saturday",
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];
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Date.prototype.getWeekNumber = function(){
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var d = new Date(+this);
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d.setHours(0,0,0);
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d.setDate(d.getDate()+4-(d.getDay()||7));
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return Math.ceil((((d-new Date(d.getFullYear(),0,1))/8.64e7)+1)/7);
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};
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Date.prototype.getUTCWeekNumber = function(){
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var d = new Date(+this);
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d.setHours(0,0,0);
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d.setDate(d.getUTCDate()+4-(d.getUTCDay()||7));
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return Math.ceil((((d-new Date(d.getUTCFullYear(),0,1))/8.64e7)+1)/7);
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};
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Date.prototype.getDayName = function(){
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return weekdays[this.getDay()];
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};
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Date.prototype.getUTCDayName = function(){
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return weekdays[this.getUTCDay()];
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};
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Date.prototype.getWeekOfMonth = function(){
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var month = this.getMonth();
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var year = this.getFullYear();
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var firstWeekday = new Date(year, month, 1).getDay();
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var lastDateOfMonth = new Date(year, month + 1, 0).getDate();
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var offsetDate = this.getDate() + firstWeekday - 1;
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var index = 1;
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var weeksInMonth = index + Math.ceil((lastDateOfMonth + firstWeekday - 7) / 7);
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var week = index + Math.floor(offsetDate / 7);
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if(week < 2 + index){
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return week;
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}
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return (week === weeksInMonth)? index + 5 : week;
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};
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Date.prototype.getUTCWeekOfMonth = function(){
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var month = this.getUTCMonth();
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var year = this.getUTCFullYear();
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var firstWeekday = new Date(year, month, 1).getUTCDay();
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var lastDateOfMonth = new Date(year, month + 1, 0).getUTCDate();
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var offsetDate = this.getUTCDate() + firstWeekday - 1;
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var index = 1;
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var weeksInMonth = index + Math.ceil((lastDateOfMonth + firstWeekday - 7) / 7);
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var week = index + Math.floor(offsetDate / 7);
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if(week < 2 + index){
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return week;
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}
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return (week === weeksInMonth)? index + 5 : week;
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};
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module.exports.now = function(utc){
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return module.exports.parseTime(new Date(), utc);
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};
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module.exports.parseTime = function(time, utc){
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if(!time.constructor && time.constructor.name === "Date"){
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throw new Error("first argument 'time' must be a Date object");
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}
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var date = {
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epochMs: time.getTime(),
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epochSec: Math.floor(time.getTime() / 1000.0),
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year: (utc)? time.getUTCFullYear() : time.getFullYear(),
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month: (utc)? time.getUTCMonth() : time.getMonth(),
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day: (utc)? time.getUTCDate() : time.getDate(),
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hour: (utc)? time.getUTCHours() : time.getHours(),
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minute: (utc)? time.getUTCMinutes() : time.getMinutes(),
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second: (utc)? time.getUTCSeconds() : time.getSeconds(),
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dayOfWeek: (utc)? time.getUTCDay() + 1: time.getDay() + 1,
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dayOfWeekName: (utc)? time.getUTCDayName() : time.getDayName(),
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weekNumber: (utc)? time.getUTCWeekNumber() : time.getWeekNumber(),
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weekOfMonth: (utc)? time.getUTCWeekOfMonth() : time.getWeekOfMonth(),
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};
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return date;
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};
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module.exports.getActiveEvents = function(events, time){
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var active = [];
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events.forEach(function(event){
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if(module.exports.isEventActive(event, time)){
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active.push(event);
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}
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});
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return active;
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};
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module.exports.isEventActive = function(event, time){
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return true;
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};
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