Simple store open/closed indicator

open-close.js

/**
 * open-close.js
 * Dynamic display of a store open state.
 * 
 * @author Nathan Campos <nathan@innoveworkshop.com>
 */

// ==== Week Day Codes ====
// Domingo 0
// Segunda 1
// Terça   2
// Quarta  3
// Quinta  4
// Sexta   5
// Sábado  6
// ========================

jQuery(document).ready(function ($) {
	var now = new Date();
	var currentDay = now.getDay();
	var openElement = $("#store-indicator-open");
	var closedElement = $("#store-indicator-closed");
	var timeZone = -3;
	var officeHours = {
		noWorkDays: [
			0  // Domingo
		],
		regularHours: {
			start: 7,
			end: 21,
			lunchBreak: {
				start: 11,
				end: 18
			}
		},
		exceptionalDays: [
			{
				weekDay: 6,  // Sabado
				start: 8,
				end: 12
			}
		]
	};

	// Ensure the elements start hidden.
	openElement.hide();
	closedElement.hide();

	// Are we in a no work day?
	if (officeHours.noWorkDays.some(function (day) {
		if (currentDay === day) {
			closedElement.show();
			console.log("NO WORK DAY");
			return true;
		}

		return false;
	})) {
		return;
	}

	// Are we in an exceptional day?
	if (officeHours.exceptionalDays.some(function (day) {
		if (currentDay === day.weekDay) {
			var openingTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
				now.getDate(), day.start + timeZone, 00));
			var closingTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
				now.getDate(), day.end + timeZone, 00));
			var open = (now.getTime() > openingTime.getTime()) && (now.getTime() <
				closingTime.getTime());

			if (open) {
				openElement.show();
				console.log("EXCEPTION DAY OPEN");
			} else {
				closedElement.show();
				console.log("EXCEPTION DAY CLOSE");
			}
			return true;
		}

		return false;
	})) {
		return;
	}

	// Looks like a regular day. Check if we are on a lunch break.
	var lunchStartTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
		now.getDate(), officeHours.regularHours.lunchBreak.start + timeZone, 00));
	var lunchEndTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
		now.getDate(), officeHours.regularHours.lunchBreak.end + timeZone, 00));
	var closedForLunch = (now.getTime() > lunchStartTime.getTime()) && (now.getTime() <
		lunchEndTime.getTime());
	if (closedForLunch) {
		console.log("REGULAR DAY LUNCH");
		closedElement.show();
		return;
	}

	// Only thing left to do is check if we are actually within office hours.
	var openingTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
		now.getDate(), officeHours.regularHours.start + timeZone, 00));
	var closingTime = new Date(Date.UTC(now.getFullYear(), now.getMonth(),
		now.getDate(), officeHours.regularHours.end + timeZone, 00));
	var open = (now.getTime() > openingTime.getTime()) && (now.getTime() <
		closingTime.getTime());
	if (open) {
		console.log("REGULAR DAY OPEN");
		openElement.show();
	} else {
		console.log("REGULAR DAY CLOSED");
		closedElement.show();
	}
});