$(function () {
   var bindDatePicker = function() {
		$(".date").datetimepicker({
        format:'YYYY-MM-DD',
			icons: {
				time: "fa fa-clock-o",
				date: "fa fa-calendar",
				up: "fa fa-arrow-up",
				down: "fa fa-arrow-down"
			}
		}).find('input:first').on("blur",function () {
			// check if the date is correct. We can accept dd-mm-yyyy and yyyy-mm-dd.
			// update the format if it's yyyy-mm-dd
			var date = parseDate($(this).val());

			if (! isValidDate(date)) {
				//create date based on momentjs (we have that)
				date = moment().format('YYYY-MM-DD');
			}

			$(this).val(date);
		});
	}
   
   var isValidDate = function(value, format) {
		format = format || false;
		// lets parse the date to the best of our knowledge
		if (format) {
			value = parseDate(value);
		}

		var timestamp = Date.parse(value);

		return isNaN(timestamp) == false;
   }
   
   var parseDate = function(value) {
		var m = value.match(/^(\d{1,2})(\/|-)?(\d{1,2})(\/|-)?(\d{4})$/);
		if (m)
			value = m[5] + '-' + ("00" + m[3]).slice(-2) + '-' + ("00" + m[1]).slice(-2);

		return value;
   }
   
   bindDatePicker();
 });