/* <copyright>
 This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
 No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
 (c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
 </copyright> */
var Montage = require("montage").Montage,
    Component = require("ui/component").Component;
    //Notifier = require("ui/popup/notifier.reel").Notifier;

exports.FeedReader = Montage.create(Component, {

    didCreate: {
        value: function() {
            var self = this;
            var apiInit = function() {
                console.log('google api initialized');

                google.load("feeds", "1", {
                    callback: function() {
                        console.log('google feeds api loaded');
                        self.needsDraw = true;
                        window.initGoogleAPI = null;
                    }
                });
            };

            // set up a global function
            window.initGoogleAPI = apiInit;
        }
    },

    _feedURL: {value: null},
    feedURL: {
        get: function() {
            return this._feedURL;
        },
        set: function(value) {
            this._feedURL = value;
            // execute the search and get the entries
            this._fetchFeed();
        }
    },
    
    // time in ms between slides
    interval: {value: 3000, distinct: true},
    
    repetition: {enumerable: false, value: null},

    maxEntries: {value: 10, distinct: true},
    entries: {value: null},


    _startLoading: {
        value: function() {
            //Notifier.show('Loading ... please wait', null, {top: this.element.style.top, left: this.element.style.left + 20});
        }
    },

    _stopLoading: {
        value: function() {
            //Notifier.hide();
        }
    },
    
    
    feedEntryTimer: {enumerable: false, value: null},
    _items: {
        value: null
    },
    items: {
        get: function() {
            return this._items;
        },
        set: function(value) {
            this._items = value;
            // reset the counter
            console.log('got items');
            this.activeIndex = 0;
            
            if(this.feedEntryTimer) {
                window.clearInterval(this.feedEntryTimer);
            }
            var self = this, maxEntries = self.maxEntries;
            
            this.feedEntryTimer = setInterval(function() {
                var index = self.activeIndex + 1;
                if(index > maxEntries) {
                    index = 0;
                }
                if(index < 0) {
                    index = 0;
                }
                self.activeIndex = index;
                
            }, this.interval);
        }
    },
    
    _activeIndex: {value: null},
    activeIndex: {
        get: function() {
            return this._activeIndex || 0;
        },
        set: function(value) {
            this._activeIndex = value;
            this.repetition.activeIndexes = [value];
        }
    },

    _fetchFeed: {
        value: function() {
            var url = this.feedURL;
            var feed = new google.feeds.Feed(url);
            feed.setNumEntries(10);

            var self = this;

            this._startLoading();
            self.entries = [];

            feed.load(function(result) {
                self._stopLoading();
                if(result.error) {
                    self.entries = [];
                } else {
                    //console.log('entries: ', result.feed.entries);
                    self.entries = result.feed.entries;
                }
            });
        }
    }

});