<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
					   xmlns:s="library://ns.adobe.com/flex/spark" 
					   xmlns:mx="library://ns.adobe.com/flex/mx"
					   width="800" 
					   height="500"
					   creationComplete="windowedapplication1_creationCompleteHandler(event)" xmlns:local="*"
					   >
	
	<s:states>
		<s:State name="normal"/>
		<s:State name="loggedIn"/>
	</s:states>
	
	<fx:Style>
		@namespace s "library://ns.adobe.com/flex/spark";
		@namespace mx "library://ns.adobe.com/flex/halo";
		
		s|List#tweetsList s|Scroller {
			horizontalScrollPolicy: off;
		}
	</fx:Style>
	
	<fx:Script>
		<![CDATA[
			import com.dborisenko.api.twitter.TwitterAPI;
			import com.dborisenko.api.twitter.commands.status.UpdateStatus;
			import com.dborisenko.api.twitter.commands.timeline.LoadHomeTimeline;
			import com.dborisenko.api.twitter.events.TwitterEvent;
			import com.dborisenko.api.twitter.net.TwitterOperation;
			import com.dborisenko.api.twitter.oauth.events.OAuthTwitterEvent;
			
			import mx.collections.ArrayCollection;
			import mx.events.FlexEvent;
			
			protected static const CONSUMER_KEY:String = "3jetSG8TzkMaPiTGEBILvQ";
			protected static const CONSUMER_SECRET:String = "lITX9DWs4QpLVOsvRqz1vcHgWX8XZVhMDOgI4LsshfU";
			
			[Bindable]
			protected var twitterApi:TwitterAPI = new TwitterAPI();
			
			[Bindable]
			protected var twitterStatuses:ArrayCollection;
			
			protected function loadTweets():void
			{
				status = "Loading tweets";
				var op:TwitterOperation = new LoadHomeTimeline();
				var handler:Function = function (event:TwitterEvent):void
				{
					op.removeEventListener(TwitterEvent.COMPLETE, handler);
					if (event.success)
					{
						status = "Tweets loaded";
						twitterStatuses = event.data as ArrayCollection;
					}
					else
					{
						status = "Loading error: " + event.data.toString();
					}
				};
				op.addEventListener(TwitterEvent.COMPLETE, handler);
				twitterApi.post(op);
			}
			
			protected function sendTweet():void
			{
				var text:String = tweetTextInput.text;
				status = "Sending tweet";
				
				var op:TwitterOperation = new UpdateStatus(text);
				var handler:Function = function (event:TwitterEvent):void
				{
					op.removeEventListener(TwitterEvent.COMPLETE, handler);
					if (event.success)
					{
						status = "Tweet sent";
						loadTweets();
						tweetTextInput.text = "";
					}
					else
					{
						status = "Error of status sending: " + event.data.toString();
					}
				};
				op.addEventListener(TwitterEvent.COMPLETE, handler);
				twitterApi.post(op);
			}
			
			protected function windowedapplication1_creationCompleteHandler(event:FlexEvent):void
			{
				twitterApi.connection.addEventListener(OAuthTwitterEvent.REQUEST_TOKEN_RECEIVED, handleRequestTokenReceived);
				twitterApi.connection.addEventListener(OAuthTwitterEvent.REQUEST_TOKEN_ERROR, handleRequestTokenError);
				twitterApi.connection.addEventListener(OAuthTwitterEvent.ACCESS_TOKEN_ERROR, handleAccessTokenError);
				twitterApi.connection.addEventListener(OAuthTwitterEvent.AUTHORIZED, handleAuthorized);
				
				twitterApi.connection.authorize(CONSUMER_KEY, CONSUMER_SECRET);
			}
			
			protected function tweetTextInput_textInputHandler(event:TextEvent):void
			{
				if (event.text == "\n")
				{
					event.preventDefault();
					sendTweet();
				}
			}
			
			protected function sendTweetButton_clickHandler(event:MouseEvent):void
			{
				sendTweet();
			}
			
			protected function pinOkButton_clickHandler(event:MouseEvent):void
			{
				twitterApi.connection.grantAccess(pinTextInput.text);
			}
			
			protected function handleRequestTokenReceived(event:OAuthTwitterEvent):void
			{
				authHTML.url = twitterApi.connection.authorizeURL;
			}
			
			protected function handleRequestTokenError(event:OAuthTwitterEvent):void
			{
				status = "Connection error";
			}
			
			protected function handleAccessTokenError(event:OAuthTwitterEvent):void
			{
				status = "Error of receiving access token";
			}
			
			protected function handleAuthorized(event:OAuthTwitterEvent):void
			{
				status = "Authorized";
				currentState = "loggedIn";
				loadTweets();
			}

		]]>
	</fx:Script>
	
	<fx:Declarations>
		<!-- Place non-visual elements (e.g., services, value objects) here -->
	</fx:Declarations>
	
	<s:Group id="viewstack" 
			 width="100%" 
			 height="100%">
		
		<s:VGroup width="100%" 
				  height="100%" 
				  id="authScreen" 
				  excludeFrom="loggedIn">
			<s:TextInput text="{authHTML.location}" 
						 editable="false" 
						 width="100%"/>

			<local:StageWebViewUIComponent id="authHTML"
										   width="100%" 
										   height="100%"
										   />
			
			<s:HGroup width="100%" 
					  horizontalAlign="center" 
					  verticalAlign="middle"
					  >
				
				<s:Label text="Enter pin here:"/>
				<s:TextInput id="pinTextInput"/>
				<s:Button label="Ok" 
						  click="pinOkButton_clickHandler(event)" 
						  id="pinOkButton"/>
			</s:HGroup>
		</s:VGroup>
		
		<s:VGroup width="100%" 
				  height="100%" 
				  id="twitterScreen" 
				  includeIn="loggedIn">
			
			<s:List width="100%" 
					height="100%" 
					dataProvider="{twitterStatuses}" 
					id="tweetsList"
					itemRenderer="TweetItemRenderer"
					autoLayout="true"	
					>
			</s:List>
			
			<s:HGroup width="100%" 
					  horizontalAlign="center" 
					  verticalAlign="middle">
				<s:TextArea width="100%" 
							height="100%" 
							id="tweetTextInput" 
							textInput="tweetTextInput_textInputHandler(event)"/>
				<s:Button label="Send" 
						  click="sendTweetButton_clickHandler(event)" 
						  enabled="{tweetTextInput.text != ''}"
						  height="100%"
						  id="sendTweetButton"/>
			</s:HGroup>
		</s:VGroup>
	</s:Group>
	
</s:WindowedApplication>