jQuery(function () {
	'use strict';
	// Date of birth control
	jQuery('.mpa-date_of_birth-control, .mpa-ctrl-date-of-birth, .mpa-date-of-birth-ctrl').each(function (i, element) {
		var $control = jQuery(element);
		var $day = $control.find('.mpa-day-control-component');
		var $month = $control.find('.mpa-month-control-component');
		var $year = $control.find('.mpa-year-control-component');

		var $holder = $control.find('.mpa-dob-holder-control-component');

		$month.on('change', onMonthOrYearUpdate);
		$year.on('change', onMonthOrYearUpdate);

		function onMonthOrYearUpdate() {
			var month = $month.val();
			var year = $year.val() || mpa_cf_current_year();

			var daysInMonth = month !== '' ? mpa_cf_days_in_month(parseInt(month), parseInt(year)) : 31;
			mpa_cf_reset_options_number($day, daysInMonth);
		}
		
		
		$day.on('change', onBdateDataUpdate);
		$month.on('change', onBdateDataUpdate);
		$year.on('change', onBdateDataUpdate);

		function onBdateDataUpdate() {
			var day = $day.val();
			var month = $month.val();
			var year = $year.val();

			if ( day && month && year && $holder[0] ) {
				$holder.val( year + '-' + month + '-' + day );
			}
		}

		
	});

	function mpa_cf_current_year() {
		var currentDate = new Date();
		return currentDate.getFullYear();
	}

	function mpa_cf_days_in_month(month, year) {
		var date = new Date(year, month, 0);
		return date.getDate();
	}

	function mpa_cf_reset_options_number($select, limit) {
		var optionsCount = $select.children('[value!=""]').length;

		if (optionsCount < limit) {
			// Add more options
			for (var i = optionsCount + 1; i <= limit; i++) {
				var $option = jQuery('<option value="' + i + '">' + i + '</option>');
				$select.append($option);
			}

		} else if (optionsCount > limit) {
			// Remove extra options
			$select.children().each(function (i, option) {
				if (option.value !== '' && parseInt(option.value) > limit) {
					option.remove();
				}
			});
		}
	}
});