// -------------------------------------------------------------------------------------------
// Big Number animation shortcode javascript
// -------------------------------------------------------------------------------------------

(function($)
{
	// options.simple_up = dont prepend leading zeros, options.instant_start = trigger counting instantly, options.start_timer = delay when to start counting
	$.fn.avia_sc_animated_number = function(options) 
	{
		if(!this.length) return;
		if(this.is('.avia_sc_animated_number_active')) return;
		
		this.addClass('avia_sc_animated_number_active');
	
		var simple_upcount 	= (options && options.simple_up) ? true : false,
			start_timer 	= (options && options.start_timer) ? options.start_timer : 300,
			
			format_number = function( number, number_format, final_number )
			{
				var prepend = '', 
					addZeros = final_number.toString().length - number.toString().length;
			
				//if the number has less digits than the final number some zeros where omitted. add them to the front
				for(var i = addZeros; i > 0; i--)
				{ 
					prepend += '0'; 
				}
				
				number = ( simple_upcount ) ? number.toString() : prepend + number.toString();
				
				if( '' == number_format )
				{
					return number;
				}
				
				return number.split( /(?=(?:...)*$)/ ).join( number_format );
			},
				
			start_count = function(element, countTo, increment, current, fakeCountTo, number_format)
			{
				//calculate the new number
				var newCount = current + increment,
					final = '';

				//if the number is bigger than our final number set the number and finish
				if(newCount >= fakeCountTo) 
				{
					final = format_number( countTo, number_format, countTo );
					element.text( final ); //exit
				}
				else
				{
					final = format_number( newCount, number_format, countTo );
					element.text(final);

					window.requestAnimationFrame(function(){ start_count(element, countTo, increment, newCount, fakeCountTo, number_format); });
				}
			};
	
		return this.each(function()
		{
			var number_container = $(this), 
				elements = number_container.find('.__av-single-number'), 
				countTimer = number_container.data('timer') || 3000;
			
			//prepare elements
			elements.each(function(i)
			{
				var element = $(this), 
					text = element.text();
					
				if(window.addEventListener) element.text( text.replace(/./g, "0")); /*https://github.com/AviaThemes/wp-themes/issues/812*/
			});
			
			//trigger number animation
			number_container.addClass('number_prepared').on('avia_start_animation', function()
			{
				if(number_container.is('.avia_animation_done')) return;
				number_container.addClass('avia_animation_done');
				
				elements.each(function(i)
				{
					var element = $(this), 
						countTo = element.data('number'), 
						fakeCountTo = countTo, 
						current = parseInt(element.text(),10), 
						zeroOnly = /^0+$/.test(countTo), 
						increment = 0,
						number_format = '';
						
					if( 'undefined' != typeof element.data('start_from') )
					{
						current = element.data('start_from');
					}
					
					if( 'undefined' != typeof element.data('number_format') )
					{
						number_format = element.data('number_format');
					}
					
					//fallback for decimals like 00 or 000
					if( zeroOnly && countTo !== 0 ) 
					{ 
						fakeCountTo = countTo.replace( /0/g, '9' ); 
					}
					
					increment = Math.round( fakeCountTo * 32 / countTimer);
					if(increment == 0 || increment % 10 == 0) increment += 1;
					
					setTimeout( function(){ start_count(element, countTo, increment, current, fakeCountTo, number_format);}, start_timer);
				});
			});
			
			if(options && options.instant_start == true)
			{
				number_container.trigger('avia_start_animation');
			}
			
			
		});
	};
})(jQuery);