neurobug · July 16, 2021 08:25 · Nov 23, 2016
diff --git a/ColombiaHolidaysExample.js b/ColombiaHolidaysExample.js
@@ -0,0 +1,70 @@
+// 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'));
+});
diff --git a/HolidaysHelper.js b/HolidaysHelper.js
@@ -0,0 +1,117 @@
+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));
+    }
+};
diff --git a/README.md b/README.md
@@ -0,0 +1,4 @@
+Holidays Helper
+===============
+
+Thanks to Leonardo Suarez for the publication of http://blog.leonardosuarez.net/2011/11/calcular-dias-festivos-colombia.html
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