/*
 * This set of functions checks the client agent for video streaming.
 * If the client agent cannot stream flash, HTML5 video is generated.
 *
 * IMPORTANT NOTE: 
 * HTML5 does not have the ability to validate tokens or use
 * a lot of the security flash players provide.  As a result, this
 * body of code should not be used for video that needs to be secure.
 */

function writeVideo(flashURL, httpURL, divID, height, width, flashVars) {
	if (divID==null) {
		divID = 'video';
	}
	
	if (height==null) {
		height = '360';
	}
	
	if (width==null) {
		width = '640';
	}
	
	var videoElement = document.getElementById(divID);
	
	var player = null;
	
	if (clientRequiresHTTP()) {
		player = new htmlVideoPlayer(httpURL, 'controls', 'preload', width, height);
		videoElement.innerHTML = player.generateHTML();
	}
	else {
		player = flashVideoPlayer(flashURL, width, height);
		for (i in flashVars)
		{
			player.addVariable(i, flashVars[i]);
		}
		player.write(divID);
	}
}

function clientRequiresHTTP(){
	agent = navigator.userAgent;
	return  agent.match(/iPhone/i) || 
			agent.match(/iPod/i) || 
			agent.match(/iPad/i);
}

function htmlVideoPlayer(source, controls, preload, width, height) {
	this.source 	= source;
	this.controls 	= controls;
	this.preload 	= preload;
	this.width 		= width;
	this.height 	= height;
	this.generateHTML = generateHTML;
	
	return true;
}

function generateHTML() {
	html =  '<video src='+this.source+
			' controls='+this.countrols+
			' autoplay='+this.autoplay+
			' preload='+this.autplay+
			' width='+this.width+
			' height='+this.height+
			'>';
	html += 'Your browser does not support HTML5 video playback.';
	html+= '</video>';
	return html;
}

function flashVideoPlayer(source, width, height) {
	var player = new SWFObject('/assets/images/swf/player-licensed.swf','mpl', width, height,'9');
	player.addParam('allowscriptaccess','always');
	player.addParam('allowfullscreen','true');
	player.addParam('wmode', 'Transparent')
	
	player.addVariable('menu', 'false');
	player.addVariable('file', source);
	player.addVariable('backcolor', '111111');
	player.addVariable('frontcolor' ,'EEEEEE');
	player.addVariable('lightcolor','666666');
	player.addVariable('screencolor', '000000');
	player.addVariable('playlistsize','300');
	player.addVariable('skin', 'assets/swf/stylish.swf');
	player.addVariable('bufferlength', '5');
	player.addVariable('streamer', 'rtmp://streaming.cias.com/ondemand');
	player.addVariable('playlist', 'none');
	player.addVariable('dock', 'true');
	player.addVariable('mute', 'false');
	player.addVariable('repeat', 'list');
	player.addVariable('smoothing', 'true');
	player.addVariable('volume', '85');
	player.addVariable('stretching', 'exactfit');
	
	
	return player;
}