/* From https://daveismyname.com/duplicate-form-sections-with-jquery-bp and http://www.philippecloutier.com/blogpost47-Duplicate-form-sections-with-jQuery-Improved
 * MIT License
 * Depends on jQuery
 * May be used with numberedParametersToArrays()
 **/

//define template
var template = $('#sections .section:first').clone();

//define counter
var sectionsCount = jQuery('div.section:last').data('number');

function incrementIdentifier(id, sectionsCount) {
	if (id.substr(-1) == '0') {
		id = id.substr(0, id.length - 1);
	}
	return id + sectionsCount;
}

//add new section
$('body').on('click', '.addsection', function() {
	
	//increment
	sectionsCount++;
	
	//loop through each input
	var section = template.clone().find(':input').each(function(){
		//set id to store the updated section number
		newId = incrementIdentifier(this.id, sectionsCount);
		
		//update for label
		$(this).prev().attr('for', newId);
		
		//update id
		this.id = newId;
		
		var baseName = this.name;
		var array = false;
		if (baseName.substr(-2) == '[]') {
			array = true;
			baseName = baseName.substr(0, baseName.length - 2);
		}
		baseName = incrementIdentifier(baseName, sectionsCount);
		if (array) {
			baseName = baseName + '[]';
		}
		this.name = baseName;
	}).end()
	
	//inject new section
	.appendTo('#sections');
	
	jQuery('input[name=lastSection]').val(sectionsCount);
	return false;
});

//remove section
$('#sections').on('click', '.remove', function() {
	//fade out section
	$(this).parent().fadeOut(300, function(){
		//remove parent element (main section)
		$(this).parent().parent().empty();
		return false;
	});
	return false;
});