Skip to content

Instantly share code, notes, and snippets.

Show Gist options
  • Save neurobug/5f247f742e5926b905b27f301d1a196f to your computer and use it in GitHub Desktop.
Save neurobug/5f247f742e5926b905b27f301d1a196f to your computer and use it in GitHub Desktop.
Holidays Helper
// This example populate the 2016,2017 and 2018 holidays in Colombia
[2016, 2017, 2018].forEach(function(year){
var holidaysHelper = new HolidaysHelper(year);
// Fixed
[
{month: HolidaysHelper.Months.January, day: 1, description: "Año Nuevo"},
{month: HolidaysHelper.Months.May, day: 1, description: "Día del Trabajo"},
{month: HolidaysHelper.Months.July, day: 20, description: "Grito de Independencia"},
{month: HolidaysHelper.Months.August, day: 7, description: "Batalla de Boyacá"},
{month: HolidaysHelper.Months.December, day: 8, description: "Día de la Inmaculada Concepción"},
{month: HolidaysHelper.Months.December, day: 25, description: "Navidad"}
].forEach(function (data) {
var date = new Date(holidaysHelper.year, data.month, data.day);
holidaysHelper.addDate(date, data.description);
});
// Moved to Monday
[
{month: HolidaysHelper.Months.January, day: 6, description: "Reyes Magos"},
{month: HolidaysHelper.Months.March, day: 19, description: "San José"},
{month: HolidaysHelper.Months.June, day: 29, description: "San Pedro y San Pablo"},
{month: HolidaysHelper.Months.August, day: 15, description: "Asunción de la Virgen"},
{month: HolidaysHelper.Months.October, day: 12, description: "Día de la Raza"},
{month: HolidaysHelper.Months.November, day: 1, description: "Todos los Santos"},
{month: HolidaysHelper.Months.November, day: 11, description: "Independencia de Cartagena"},
].forEach(function (data) {
var date = holidaysHelper.nextWeekDay(HolidaysHelper.DayOfWeek.Monday,new Date(holidaysHelper.year, data.month, data.day));
holidaysHelper.addDate(date, data.description);
});
// Pascua Related
holidaysHelper.addDate(holidaysHelper.pascua, "Pascua");
holidaysHelper.addDate(
holidaysHelper.previousWeekDay(
HolidaysHelper.DayOfWeek.Sunday,
holidaysHelper.pascua,
-1), "Domingo de Ramos");
holidaysHelper.addDate(
holidaysHelper.previousWeekDay(
HolidaysHelper.DayOfWeek.Thursday,
holidaysHelper.pascua), "Jueves Santo");
holidaysHelper.addDate(
holidaysHelper.previousWeekDay(
HolidaysHelper.DayOfWeek.Friday,
holidaysHelper.pascua), "Viernes Santo");
holidaysHelper.addDate(
holidaysHelper.nextWeekDay(
HolidaysHelper.DayOfWeek.Monday,
holidaysHelper.pascua,
42), "Ascensión de Jesús");
holidaysHelper.addDate(
holidaysHelper.nextWeekDay(
HolidaysHelper.DayOfWeek.Monday,
holidaysHelper.pascua,
63), "Corpus Christi");
holidaysHelper.addDate(
holidaysHelper.nextWeekDay(
HolidaysHelper.DayOfWeek.Monday,
holidaysHelper.pascua,
70), "Sagrado Corazón");
holidaysHelper.addParser('addedParser', function (date, data) {
return date + ' ' + data;
});
console.log(holidaysHelper.getHolidays('addedParser'));
});
function HolidaysHelper(year) {
this.year = year || new Date().getFullYear();
this.calculatePascua();
this.parsers = {};
this.dates = [];
}
HolidaysHelper.DayOfWeek = {};
HolidaysHelper.DaysArray = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
for (var i = 0, lengthD = HolidaysHelper.DaysArray.length; i < lengthD; ++i) {
HolidaysHelper.DayOfWeek[HolidaysHelper.DaysArray[i]] = i;
}
HolidaysHelper.Months = {};
HolidaysHelper.MonthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
for (var j = 0, lengthM = HolidaysHelper.MonthNames.length; j < lengthM; ++j) {
HolidaysHelper.Months[HolidaysHelper.MonthNames[j]] = j;
}
HolidaysHelper.prototype.nextWeekDay = function (weekDay, realDate, daysToAdd, backward) {
var date = new Date(realDate.getTime()),
dayAddition = (backward ? -1 : 1);
if (daysToAdd) {
date.setDate(date.getDate() + daysToAdd);
}
while (date.getDay() !== weekDay) {
date.setDate(date.getDate() + dayAddition);
}
return date;
};
HolidaysHelper.prototype.previousWeekDay = function (weekDay, date, daysToAdd) {
return this.nextWeekDay(weekDay, date, daysToAdd, true);
};
HolidaysHelper.prototype.addDate = function (date, data) {
this.dates.push({date: date, data: data});
};
HolidaysHelper.prototype.addParser = function (name, parser) {
this.parsers[name] = parser;
};
HolidaysHelper.prototype.getHolidays = function (parserName) {
var parser;
if (parserName && this.parsers.hasOwnProperty(parserName)) {
parser = this.parsers[parserName];
} else {
parser = function (date) {
return date;
};
}
return this.dates.sort(function (a, b) {
return a.date > b.date ? 1 : -1;
}).map(function (date) {
return parser(date.date, date.data);
});
};
HolidaysHelper.prototype.calculatePascua = function () {
var a, b, c, d, e;
var year = this.year, m = 24, n = 5;
switch (true) {
case (year >= 1583 && year <= 1699):
m = 22;
n = 2;
break;
case(year >= 1700 && year <= 1799) :
m = 23;
n = 3;
break;
case (year >= 1800 && year <= 1899) :
m = 23;
n = 4;
break;
case (year >= 1900 && year <= 2099) :
m = 24;
n = 5;
break;
case (year >= 2100 && year <= 2199) :
m = 24;
n = 6;
break;
case (year >= 2200 && year <= 2299) :
m = 25;
n = 0;
break;
}
a = year % 19;
b = year % 4;
c = year % 7;
d = ((a * 19) + m) % 30;
e = ((2 * b) + (4 * c) + (6 * d) + n) % 7;
var day = d + e;
if (day < 10)
return (this.pascua = new Date(year, HolidaysHelper.Months.March, day + 22));
else {
if (day == 26)
day = 19;
else if (day == 25 && d == 28 && e == 6 && a > 10)
day = 18;
else
day -= 9;
return (this.pascua = new Date(year, HolidaysHelper.Months.April, day));
}
};
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment