MMM-Birthdays.js

/* Magic Mirror
 * Module: MMM-Birthdays
 *
 * By Jean-Marie Straetemans
 * derived from BIRTHDAYS
 * Initially By Marco Merens
 * Module: BIRTHDAYS
 * MIT Licensed.
 */
Module.register("MMM-Birthdays", {

	defaults: {
		limit:4,
		people:[{name:"Marco",birthdate:"1973-12-30"}],
		maxDays: 30
	},
	start:function() {
		this.calculate()

		var self=this

		setInterval(function(){
			self.calculate()
			self.updateDom()
		},60*60*1000) // update every hour
	},

	calculate : function(){
		var now=new Date(new Date().toLocaleString("sv").substring(0,10))
		var thisyear=now.getUTCFullYear()
		var today=new Date(thisyear,now.getUTCMonth(),now.getUTCDate()).getTime()
		Log.log(now)
		var months=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]

		this.config.people.forEach(function(p) {
			var bdate  = new Date(p.birthdate)
			var bmonth = bdate.getUTCMonth()
			var bday   = bdate.getUTCDate()
			var byear  = bdate.getUTCFullYear()
			p.age = thisyear-byear
			var diff = new Date(thisyear, bmonth, bday).getTime() - today
			if (diff<0) {
				diff = new Date(thisyear + 1,bmonth,bday).getTime()-today
				p.age = thisyear - byear
			}

			p.days = Math.floor(diff/1000/60/60/24)
			p.date = bday+" "+months[bmonth]
			p.birthyear = byear
			p.day = bday
		})

		this.config.people = this.config.people
			.filter(function(p) {
				return p.days <= this.config.maxDays;
			}
			.bind(this)) // Filter based on maxDays
			.sort(function(a, b) {
				return a.days - b.days;
			});
	},



	getTemplate: function () {
		return "MMM-Birthdays.njk";
	},

	getTemplateData: function () {
		return this.config;
	}
});