/*
 * Copyright (C) 2004 - 2009 TopCoder Inc., All Rights Reserved.
 *
 * <p>This is a helper javascript for the home page in order to retrieve RSS feeds.</p>
 * 
 * @author pulky
 * @version 1.0
 *
 */

/**
 * <p>This method loads a particular feed, transform it and add the result as the inner HTML of the specified element.
 * If an error occurs, it adds errorMessage content.</p>
 *
 * @param rss the rss source
 * @param template the transformation template
 * @param element the target element for the transformed text
 * @param errorMessage the error message to be shown if any error occurs
 *
 * @throws Exception if any error occurs
 */
function loadFeed(rss, template, element, errorMessage) {
    try {
        var processor = new js.topcoder.rss.template.RSSProcessor(false, template);
        document.getElementById(element).innerHTML = (processor.transformRSSFeed(rss));
    } catch (e) {
        document.getElementById(element).innerHTML = errorMessage;
        throw e;
    }
}

/**
 * <p>This method loads the three RSS feeds in the studio home page.</p>
 *
 * @throws Exception if any error occurs
 */
function loadHomePageFeeds() {

    // NOTE: The following block is commented out for testing/review purposes only. It should be
    // uncommented when deploying to Production environment

    loadFeed("/blog/studio/2009/07/28/feed/", "js/DesignShowcaseTemplate.txt", "showcase_content",
        "Error reading Design Showcase feed.");
    loadFeed("/blog/studio/feed/", "js/ThoughtsFromTheBlogTemplate.txt", "post_content", 
        "Error reading Thoughts From The Blog feed.");


    // NOTE: The following block is provided for testing/review purposes only. It should be
    // removed when deploying to Production environment 
    // loadFeed("js/mockDesignShowcase.xml", "js/DesignShowcaseTemplate.txt", "showcase_content",
    //        "Error reading Design Showcase feed.");
    // loadFeed("js/mockThoughtsFromTheBlogFeed.xml", "js/ThoughtsFromTheBlogTemplate.txt", "post_content",
    //          "Error reading Thoughts From The Blog feed.");
}