import com.macromedia.mxna.MXNAWebService;
import com.macromedia.mxna.app.feedscroller.MXNAFeedView;

/* Associated with the main app controller clip */
class com.macromedia.mxna.app.feedscroller.MXNAFeedScrollerController extends MovieClip
{

	private var mxna:MXNAWebService;
	private var feedView:MXNAFeedView;

	private var category:String = "Flash";
	private var interval:Number = (60 * 15 * 1000); // 15 minutes

	/*
		Constructor. We do everything in onLoad to be sure
		everything has initialized
	*/
    public function MXNAFeedScrollerController()
    {
    }

	/*
		Called by Flash when the clip is laoded on stage. We do a bunch of
		initialization here.
	*/
    private function onLoad():Void
    {
    	Mouse.hide();

    	mxna = new MXNAWebService();

    	mxna.addEventListener("onGetPostsByCategory", this);

    	//load the posts from the server
    	loadPosts();

    	//reloads the posts from the server at the specified interval
    	setInterval(this, "loadPosts", interval);
    }

    /*
    	Loads the latests posts from the server
    */
    private function loadPosts(Void):Void
    {
    	mxna.getPostsByCategory(category);
    }

    /*
    	called when posts are loaded from the server
    */
    private function onGetPostsByCategory(eventObj:Object):Void
    {
    	feedView.setDataProvider(eventObj.posts);
    }

}

/* Associated with the feedview clip */
class com.macromedia.mxna.app.feedscroller.MXNAFeedView extends MovieClip
{
	private var dp:Array;
	private var index:Number = 0;
	private var rankingClip:MovieClip;

	private var titleField:TextField;
	private var sourceField:TextField;
	private var postTimeField:TextField;
	private var contentField:TextField;
	private var urlField:TextField;

	/*How often (in milliseconds) the post is changed*/
	private var interval:Number = (15 * 1000); //15 seconds


	/*
		Constructor. We do everything in onLoad to be sure
		everything has initialized
	*/
    public function MXNAFeedView()
    {
    }

	/*
		Called by Flash when the clip is laoded on stage. We do a bunch of
		initialization here.
	*/
    private function onLoad():Void
    {
    	this.titleField.wordWrap = true;
		this.sourceField.wordWrap = true;
		this.postTimeField.wordWrap = true;
		this.contentField.wordWrap = true;
		this.urlField.wordWrap = true;

		setInterval(this, "rotatePost", interval);
    }

    /* Displays the next post */
    private function rotatePost()
    {
    	var tempIndex:Number = getNextIndex();
    	populateFields(dp[tempIndex]);
    }

    /*
    	returns the index for the next post.
    */
    private function getNextIndex()
    {
    	//if index is greater than or equal to the dp length
    	//then we are at the last item. reset to the first item
    	if(index == (dp.length - 1))
    	{
    		index = 0;
    	}
    	else
    	{
    		index++;
    	}

    	return index;
    }

    /* specifies the dataprovider / array of posts */
    public function setDataProvider(dp:Array):Void
    {
    	var isFirstLoad:Boolean = (this.dp == null);

    	this.dp = dp;
    	this.index = 0;

    	if(isFirstLoad)
    	{
    		populateFields(dp[0]);
    	}
    }

    /*
    	populates the posts from a given object (from the post
    	dataprovider)
    */
    private function populateFields(data:Object):Void
    {
        var star:Number = Number(data.ranking);

        if(star < 1)
        {
            star = 1;
        }

        rankingClip.attachMovie("star" + star, "star", 999);


    	this.titleField.text = data.title;
		this.sourceField.text = data.name;
		this.postTimeField.text = data.dateAggregated;
		this.contentField.text = data.excerpt;
		this.urlField.text = data.link;
    }

}