/*
 * Copyright 2010 Unicon (R) Licensed under the
 * Educational Community License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may
 * obtain a copy of the License at
 *
 * http://www.osedu.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an "AS IS"
 * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
$(function(){
	
	var findIframes = function(doc) {
		
		// find each IFrame in the current document
		$(doc).find("iframe").each(function(idx, iframe){
			
			// as each IFrame loads, process it
	        $(iframe).load( function(){
	        	
	        	// get the document associated with this IFrame
	    		var window = this.contentDocument || this.contentWindow.document;
	    		
	    		// display any Kaltura content within this IFrame 
	    		displayKaltura(window);
	    		
	    		// process any nested IFrames
	    		findIframes(window);
	        });
	        
		});		
	};
	
	var displayKaltura = function(doc) {
		
		// find kaltura placeholder divs and process each one
		$(doc).find("div.kaltura-media").each(function(idx, div){

			// handle the id and type (or just the id if no type is set)
			var relData = $(this).attr("rel");
			var typeStr = "";
			var entryId = relData;
			var entryType = "video";
			if (relData.indexOf("::") > 0) {
				var parts = relData.split("::");
				if (parts.length > 0) {
					entryId = parts[0];
					if (parts.length > 1) {
						entryType = parts[1];
					}
				}
			}

			// TODO handle images differently
			if (entryType == "image") {
				// TODO do something here
			} else {
				// TODO handle the video/audio stuff here
			}

			// replace the contents of the placeholder div with an IFrame view of the content
			$(div).html('<iframe src="/kaltura/service/viewMedia.htm?entryId=' + entryId + '&entryType=' + entryType + '" height="400" width="520"/>');
			
		});
	};

	// on page load, find and process Kaltura media placeholders in each nested IFrame
	$(document).ready(function(){
		findIframes(this);
	});	
	
});