/**
 * CB Flot Dates ticks drawings
 * @license GPL
 */

(function($) {

	$.cbPlotTicksDate = function( axis ) {
		var ticks = [];
		for (var i=axis.min; i<=axis.max; i++) {
			var d = new Date((i+1)*86400000);
			ticks.push([i, d.getDate()]);
		}
		return ticks;
	};

	$.cbPlotTicksWeekDays = function ( /* axis */ ) {
		var ticks = [];
		var weekDays = ["-","Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
		//for (var i=axis.min; i<=axis.max; i++) {
		for (var i=1; i<=7; i++) {
			ticks.push([i, weekDays[i]]);
		}
		return ticks;
	};

	/*
	 * helper for returning the weekends in a period
	 */
	$.cbPlotWeekends = function(axes) {
		var markings = [];
		var d = new Date(axes.xaxis.min);
		// go to the first Saturday
		d.setUTCDate(d.getUTCDate() - ((d.getUTCDay() + 1) % 7));
		d.setUTCSeconds(0);
		d.setUTCMinutes(0);
		d.setUTCHours(0);
		var i = d.getTime();
		do {
			// when we don't set yaxis the rectangle automatically
			// extends to infinity upwards and downwards
			markings.push({ xaxis: { from: i, to: i + 2 * 24 * 60 * 60 * 1000 } });
			i += 7 * 24 * 60 * 60 * 1000;
		} while (i < axes.xaxis.max);

		return markings;
	}
})(jQuery);