lectio-helper.js

var exports = module.exports = {};
/*exports.getWeekNumber = function(time){
    var d = new Date(time+6048e5);
    d.setHours(0,0,0);
    d.setDate(d.getDate()+4-(d.getDay()||7));
    return Math.ceil((((d-new Date(d.getFullYear(),0,1))/8.64e7)+1)/7)-1;
};*/

exports.getWeekNumber = function(time){

	var target = new Date(time);
    var dayNr = (target.getDay() + 6) % 7;
    target.setDate(target.getDate() - dayNr + 3);
    var firstThursday = target.valueOf();
    target.setMonth(0, 1);
    if (target.getDay() !== 4) {
        target.setMonth(0, 1 + ((4 - target.getDay()) + 7) % 7);
    }
    var retVal = 1 + Math.ceil((firstThursday - target) / 604800000);
  
    return (retVal < 10 ? '0' + retVal : retVal);

}

exports.pad = function(arg){
    if(String(arg).length==1) arg = "0" + arg; return arg;
};

exports.dateFormat = function(date,skew){ //Skew compared to time in Denmark
    if(skew!=0){
        date.setTime(date.getTime()-3.6e6*skew);
    }

    return date.getUTCFullYear() +""+ this.pad(date.getUTCMonth() + 1) +""+ this.pad(date.getUTCDate()) + "T" + this.pad(date.getUTCHours()) +""+ this.pad(date.getUTCMinutes()) +""+ this.pad(date.getUTCSeconds()) + "Z";
};

exports.removePadding = function(str){
	arr = str.split("\n");
	arr.reverse();
	while(arr[0]!=undefined && arr[0]==""){
		arr.splice(0,1);
	}
	arr.reverse();
	str = arr.join("\n");
	return str;
};