/*global jQuery */
/*jshint browser:true */
/*!
* FitVids 1.1
*
* Copyright 2013, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com
* Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/
* Released under the WTFPL license - http://sam.zoy.org/wtfpl/
*
*/

(function( $ ){

	'use strict';

	$.fn.fitVids = function( options ) {
		var settings = {
			customSelector: null,
			ignore: null
		};

		if ( ! document.getElementById( 'fit-vids-style' )) {
			// appendStyles: https://github.com/toddmotto/fluidvids/blob/master/dist/fluidvids.js
			var head      = document.head || document.getElementsByTagName( 'head' )[0];
			var css       = '.fluid-width-video-wrapper{width:100%;position:relative;padding:0;}.fluid-width-video-wrapper iframe,.fluid-width-video-wrapper object,.fluid-width-video-wrapper embed {position:absolute;top:0;left:0;width:100%;height:100%;}';
			var div       = document.createElement( "div" );
			div.innerHTML = '<p>x</p><style id="fit-vids-style">' + css + '</style>';
			head.appendChild( div.childNodes[1] );
		}

		if ( options ) {
			$.extend( settings, options );
		}

		return this.each(
			function(){
				var selectors = [
				'iframe[src*="player.vimeo.com"]',
				'iframe[src*="youtube.com"]',
				'iframe[src*="youtube-nocookie.com"]',
				'iframe[src*="kickstarter.com"][src*="video.html"]',
				'object',
				'embed'
				];

				if (settings.customSelector) {
					selectors.push( settings.customSelector );
				}

				var ignoreList = '.fitvidsignore';

				if (settings.ignore) {
					ignoreList = ignoreList + ', ' + settings.ignore;
				}

				var $allVideos = $( this ).find( selectors.join( ',' ) );
				$allVideos     = $allVideos.not( 'object object' ); // SwfObj conflict patch
				$allVideos     = $allVideos.not( ignoreList ); // Disable FitVids on this video.

				$allVideos.each(
					function(){
						var $this = $( this );
						if ($this.parents( ignoreList ).length > 0) {
							return; // Disable FitVids on this video.
						}
						if (this.tagName.toLowerCase() === 'embed' && $this.parent( 'object' ).length || $this.parent( '.fluid-width-video-wrapper' ).length) {
							return; }
						if (( ! $this.css( 'height' ) && ! $this.css( 'width' )) && (isNaN( $this.attr( 'height' ) ) || isNaN( $this.attr( 'width' ) ))) {
							$this.attr( 'height', 9 );
							$this.attr( 'width', 16 );
						}
						var height  = ( this.tagName.toLowerCase() === 'object' || ($this.attr( 'height' ) && ! isNaN( parseInt( $this.attr( 'height' ), 10 ) )) ) ? parseInt( $this.attr( 'height' ), 10 ) : $this.height(),
						width       = ! isNaN( parseInt( $this.attr( 'width' ), 10 ) ) ? parseInt( $this.attr( 'width' ), 10 ) : $this.width(),
						aspectRatio = height / width;
						if ( ! $this.attr( 'id' )) {
							var videoID = 'fitvid' + Math.floor( Math.random() * 999999 );
							$this.attr( 'id', videoID );
						}
						$this.wrap( '<div class="fluid-width-video-wrapper"></div>' ).parent( '.fluid-width-video-wrapper' ).css( 'padding-top', (aspectRatio * 100) + '%' );
						$this.removeAttr( 'height' ).removeAttr( 'width' );
					}
				);
			}
		);
	};
	// Works with either jQuery or Zepto
})( window.jQuery || window.Zepto );