(function ($) {
    var defaults = {
        username: 'Twitter',
        slides: 5,
        baseURL: 'https://api.twitter.com/1/statuses/user_timeline.json',
        width: 280,
        speed: 'fast',
        refreshTime: 600000
    };
    var storage = {
        store: {},
        init: function (element) {
            storage.element = element;
            if (!storage.element.hasClass('tweet_slider')) {
                storage.element.addClass('tweet_slider')
            }
            storage.element.data('currslide', new Number(1));
            $('<h4></h4>').html('Latest Tweet').prependTo(storage.element);
            storage.tweets_container = $('<ul></ul>');
            storage.tweets_container.appendTo(storage.element);
        },
        grab_tweets: function (options) {
            $.getJSON(options.baseURL + "?callback=?", "&screen_name=" + options.username + "&count=" + options.slides, function (data) {
                storage.store.tweets = data;
                storage.build_display();
                storage.addButtons(1);
                storage.element.css('width', options.width + 'px');
                storage.csswidth = data.length * options.width;
                storage.twidth = storage.csswidth - options.width;
                storage.tweets_container.css('width', storage.csswidth + 'px');
            });
            setTimeout(storage.refresh, options.refreshTime);
        },
        build_display: function () {
            if (typeof (storage.slides) != "undefined" && storage.slides.length > 0) {
                storage.tweets_container.html('').fadeIn('fast');
            }
            var tweets = storage.store.tweets;
            var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
            for (i in tweets) {
                var tweet_html = $('<li></li>');
                tweet_html.css('width', options.width + 'px').append('<div>');
                tweet_html.append('<span><a href="http://www.twitter.com/' + tweets[i].user.screen_name + '">' + tweets[i].user.screen_name + '</a>&nbsp;' + tweets[i].text.replace(exp, "<a href='$1'>$1</a>") + '</span>').append('</div>').appendTo(storage.tweets_container);
            }
            if ($(".controls").length < 1) {
                storage.controls = $('<div class="controls"></div>').hide('fast');
                storage.prevButton = $('<a href="#" class="prevButton"></a>');
                storage.prevButton.bind('click.tweetslider', function (e) {
                    e.preventDefault();
                    clearInterval(storage.timer);
                    storage.timer = setInterval(storage.slide, 10000);
                    storage.slide("prevSlide");
                });
                storage.nextButton = $('<a href="#" class="nextButton"></a>');
                storage.nextButton.bind('click.tweetslider', function (e) {
                    e.preventDefault();
                    clearInterval(storage.timer);
                    storage.timer = setInterval(storage.slide, 10000);
                    storage.slide("nextSlide");
                });
                storage.nextButton.hide().appendTo(storage.controls);
                storage.prevButton.hide().appendTo(storage.controls);
                storage.controls.show('fast').appendTo(storage.element);
            } else {
                storage.controls.show('fast');
            }
            $(storage.element).css('height', 'auto');
            while (i < tweets.length + 10) {
                if (i > tweets.length) {
                    storage.timer = setInterval(storage.slide, 3000);
                    break;
                }
                i++;
            }
        },
        refresh: function () {
            clearInterval(storage.timer);
            delete storage.timer;
            storage.slide("reset");
            storage.tweets_container.fadeOut('fast', function () {
                storage.controls.hide('fast');
                storage.grab_tweets(options);
            })
            return;
        },
        slide: function (operation) {
            storage.slides = storage.element.find('li');
            var total_width = -storage.twidth;
            var currpos = parseInt(storage.slides.css('left'));
            if (operation == "nextSlide") {
                var newpos = currpos - options.width;
                storage.slides.stop(true, true).animate({
                    left: newpos + 'px'
                }, options.speed);
                var cs = (storage.element.data('currslide') + 1);
                storage.addButtons(cs);
                storage.element.data('currslide', cs);
            } else if (operation == "prevSlide") {
                var newpos = currpos + options.width;
                storage.slides.stop(true, true).animate({
                    left: newpos + 'px'
                }, options.speed);
                var cs = (storage.element.data('currslide') - 1);
                storage.addButtons(cs);
                storage.element.data('currslide', cs);
            } else if (operation == "reset") {
                storage.slides.stop(true, true).animate({
                    left: '0px'
                }, options.speed);
                cs = 1;
                storage.element.data('currslide', cs);
            } else {
                if (currpos > total_width) {
                    var newpos = currpos - options.width;
                    storage.slides.stop(true, true).animate({
                        left: newpos + 'px'
                    }, options.speed);
                    var cs = (storage.element.data('currslide') + 1);
                    storage.addButtons(cs);
                    storage.element.data('currslide', cs);
                } else {
                    storage.slides.stop(true, true).animate({
                        left: '0px'
                    }, options.speed);
                    cs = 1;
                    storage.addButtons(cs);
                    storage.element.data('currslide', cs);
                }
            }
        },
        addButtons: function (currslide) {
            if (storage.tweets_container.find('li').length > 1) {
                if (currslide < storage.tweets_container.find('li').length) {
                    storage.nextButton.show();
                }
                if (currslide > 1) {
                    storage.prevButton.show();
                }
                if (currslide == storage.tweets_container.find('li').length) {
                    storage.nextButton.hide();
                }
                if (currslide == 1) {
                    storage.prevButton.hide();
                }
            }
        }
    };
    $.fn.tweetSlider = function (opts) {
        options = $.extend(defaults, opts);
        var $this = this;
        return this.each(function () {
            storage.init($this);
            storage.grab_tweets(options);
        });
    }
})(jQuery);