package {
 
	import flash.errors.IllegalOperationError;
	import flash.events.Event;
	import flash.events.HTTPStatusEvent;
	import flash.events.IOErrorEvent;
	import flash.events.SecurityErrorEvent;
	import flash.net.URLLoader;
	import flash.net.URLRequest;
	import flash.net.navigateToURL;
	import flash.external.ExternalInterface;
 
	public class Share { 
 
		public static const BITLY_USERNAME:String 	= "";
		public static const BITLY_API_KEY:String	= "";
 
		public var title:String 		= "";
		public var description:String 	= "";
		public var tweet_text:String	= "";
 
		public var bitlyURL:String;
 
		private var _window_location:String;
 
 
		/**
		 * The Singleton instance of the ShareManager to use when accessing properties and methods of the ShareManager.
		 */		
		public static const instance:Share = new Share( ShareSingletonLock );
 
		public function Share( lock:Class ){
			if( lock != ShareSingletonLock ){
				throw new IllegalOperationError( "ShareManager is a Singleton, please use the static instance method instead." );
			}else{
				_window_location = ExternalInterface.call( "function () { return window.location.href.toString().toLowerCase(); }" );
				if( _window_location != "" ){
					try{
						getBitlyURL();
					}catch( e:Error ){
						trace( "ShareManager::Constructor > error getting bitly url: " + getBitlyURL() );
					}
				}
			}
		}
 
		public function init( title:String, description:String, tweet_text:String ):void {
			this.title			= title;
			this.description	= description;
			this.tweet_text		= tweet_text;
		}
 
		private function getBitlyURL():void {
			var bitly_api:String	= "http://api.bit.ly/shorten?version=2.0.1&longUrl=";
			bitly_api 				+= encodeURIComponent( _window_location );
			bitly_api 				+= "&login=" + BITLY_USERNAME;
			bitly_api 				+= "&apiKey=" + BITLY_API_KEY;
 
			var loader:URLLoader = new URLLoader();
			loader.addEventListener( Event.COMPLETE, handleBitlyComplete );
			loader.addEventListener( HTTPStatusEvent.HTTP_STATUS, handleBitlyStatus );
			loader.addEventListener( IOErrorEvent.IO_ERROR, handleBitlyError );
			loader.addEventListener( SecurityErrorEvent.SECURITY_ERROR, handleBitlyError );
			loader.load( new URLRequest( bitly_api ) );
		}
 
		private function handleBitlyComplete( e:Event ):void {
			trace( 'BITLY url load complete: ' + e );
			var loader:URLLoader = e.target as URLLoader;
			try{
				var response:Object = ExternalInterface.call("function(){return " + ( loader.data as String ) + "}");
				if( response.statusCode == "OK" && response.results[ _window_location ] != null && response.results[ _window_location ].errorCode == null ){
					bitlyURL = response.results[ _window_location].shortUrl;
					trace( 'Set BITLY url to: ' + bitlyURL );
				}
			}catch( e:Error ){
				trace( "Error decoding BITLY response (" + loader.data + "): " + e );
			}
		}
 
		private function handleBitlyStatus( e:HTTPStatusEvent ):void {
			trace( 'BITLY status: ' + e );	
		}
 
		private function handleBitlyError( e:Event ):void {
			trace( 'Getting BITLY url failed with error: ' + e );
		}
 
		public function get redditURL():String {
			return 'http://www.reddit.com/submit?url=' + encodeURIComponent( _window_location ) + "&title=" + encodeURIComponent( title );
		}
 
		public function openReddit():void {
			navigateToURL( new URLRequest( redditURL ), '_blank' );
		}
 
		public function get diggURL():String {
			var url:String = "http://digg.com/submit?url=" + encodeURIComponent( _window_location );
			url += "&title="    + encodeURIComponent( title );
			url += "&bodytext=" + encodeURIComponent( description );
			url += "&media=video";
			return url;
		}
 
		public function openDigg():void {
			navigateToURL( new URLRequest( diggURL ), '_blank' );
		}
 
		public function get twitterURL():String {
			var url_for_tweet:String  	= bitlyURL ? bitlyURL : _window_location;
			var twitter_status:String 	= encodeURIComponent( tweet_text );
			return "http://twitter.com/home/?status=" + twitter_status;
		}
 
		public function openTwitter():void {
			navigateToURL( new URLRequest( twitterURL ), '_blank' );
		}
 
		public function get mySpaceURL():String {
			var url:String = "http://www.myspace.com/index.cfm?fuseaction=postto";
			url += "&t=" + encodeURIComponent( title );
			url += "&c=" + encodeURIComponent( description );
			url += "&u=" + encodeURIComponent( _window_location );
			url += "&r=close";
			return url;
		}
 
		public function openMySpace():void {
			navigateToURL( new URLRequest( mySpaceURL ), '_blank' );
		}
 
		public function get facebookURL():String {
			var url:String = "http://www.facebook.com/share.php?src=bm&v=4&i=1254383639";
			url += "&u=" + encodeURIComponent( _window_location );
			url += "&t=" + encodeURIComponent( title );
			return url;
		}
 
		public function openFacebook():void {
			navigateToURL( new URLRequest( facebookURL ), '_blank' );
		}
 
	}
}
 
class ShareSingletonLock {}