/*
    Adobe Systems Incorporated(r) Source Code License Agreement
    Copyright(c) 2005 Adobe Systems Incorporated. All rights reserved.
    
    Please read this Source Code License Agreement carefully before using
    the source code.
    
    Adobe Systems Incorporated grants to you a perpetual, worldwide, non-exclusive, 
    no-charge, royalty-free, irrevocable copyright license, to reproduce,
    prepare derivative works of, publicly display, publicly perform, and
    distribute this source code and such derivative works in source or 
    object code form without any attribution requirements.  
    
    The name "Adobe Systems Incorporated" must not be used to endorse or promote products
    derived from the source code without prior written permission.
    
    You agree to indemnify, hold harmless and defend Adobe Systems Incorporated from and
    against any loss, damage, claims or lawsuits, including attorney's 
    fees that arise or result from your use or distribution of the source 
    code.
    
    THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT 
    ANY TECHNICAL SUPPORT OR ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
    BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
    FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ALSO, THERE IS NO WARRANTY OF 
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    OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOURCE CODE, EVEN IF
    ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package com.adobe.xml.syndication.generic
{

    import com.adobe.xml.syndication.atom.Author;
    import com.adobe.xml.syndication.atom.Entry10;
    import com.adobe.xml.syndication.atom.Link;
    import com.adobe.xml.syndication.atom.Category;

    /**
     * Class that abstracts out the specific characteristics of an Atom entry
     * into a generic Item. You create an instance using an Entry object,
     * then you can access it in a generic way.
     * 
     * @langversion ActionScript 3.0
     * @playerversion Flash 8.5
     * @tiptext
     */    
    public class Atom10Item
        implements IItem
    {
        private var entry:Entry10;

        /**
         * Create a new Atom10Item instance.
         *
         * @param entry An Entry object that you want abstracted.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function Atom10Item(entry:Entry10)
        {
            this.entry = entry;
        }

        /**
          * This item's title.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get title():String
        {
            return this.entry.title;
        }

        /**
          * This item's link.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get link():String
        {
            for each (var link:Link in this.entry.links)
            {
                if (link.rel == null || link.rel == "alternate")
                {
                    return link.href;
                }
            }
            return null;
        }

        /**
          * This item's unique ID.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get id():String
        {
            return this.entry.id;
        }

        /**
          * The date this item was published.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get date():Date
        {
            return this.entry.published;
        }

        /**
          * One or more authors of this item.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get authors():Array
        {
            if (this.entry.authors == null || this.entry.authors.length == 0)
            {
                return null;
            }

            var authors:Array = new Array();
            var author:com.adobe.xml.syndication.atom.Author;
            for each (author in this.entry.authors)
            {
                var newAuthor:com.adobe.xml.syndication.generic.Author = new com.adobe.xml.syndication.generic.Author();
                newAuthor.name = author.name;
                newAuthor.url = author.uri;
                newAuthor.email = author.email;
                authors.push(newAuthor);
            }
            return authors;
        }

        /**
          * One or more categories.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get topics():Array
        {
            if (this.entry.categories == null || this.entry.categories.length == 0)
            {
                return null;
            }

            var topics:Array = new Array();
            for each (var category:Category in this.entry.categories)
            {
                topics.push(category.label);
            }
            return topics;
        }

        /**
          * An excerpt or description of this item.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get excerpt():Excerpt
        {
            var excerpt:Excerpt = new Excerpt;
            excerpt.src = this.entry.content.src;
            excerpt.type = this.entry.content.type;
            excerpt.value = this.entry.content.value;
            return excerpt;
        }

        /**
          * Any media associated with this item.
         * 
         * @langversion ActionScript 3.0
         * @playerversion Flash 8.5
         * @tiptext
         */
        public function get media():Media
        {
            for each (var link:Link in this.entry.links)
            {
                if (link.rel == "enclosure")
                {
                    var media:Media = new Media();
                    media.type = link.type;
                    media.length = link.length;
                    media.url = link.href;
                    return media;
                }
            }
            return null;
        }
    }
}