/*
 * jQuery Twitter Search Plugin
 * Examples and documentation at: http://jquery.malsup.com/twitter/
 * Copyright (c) 2010 M. Alsup
 * Version: 1.04 (15-SEP-2011)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 * Requires: jQuery v1.3.2 or later
 */
(function($){
    $.fn.twitterSearch = function(options){
        if (typeof options == "string") {
            options = {
                term: options
            }
        }
        return this.each(function(){
            var grabFlag = false, grabbing = false, $frame = $(this), text, $text, $title, $bird, $cont, height, paused = false, opts = $.extend(true, {}, $.fn.twitterSearch.defaults, options || {}, $.metadata ? $frame.metadata() : {});
            opts.formatter = opts.formatter || $.fn.twitterSearch.formatter;
            opts.filter = opts.filter || $.fn.twitterSearch.filter;
            if (!opts.applyStyles) {
                for (var css in opts.css) {
                    opts.css[css] = {}
                }
            }
            if (opts.title === null) {
                opts.title = opts.term
            }
            opts.title = opts.title || "";
            text = opts.titleLink ? ('<a href="' + opts.titleLink + '">' + opts.title + "</a>") : ("<span>" + opts.title + "</span>");
            $text = $(text);
            if (opts.titleLink) {
                $text.css(opts.css.titleLink)
            }
            $title = $('<div class="twitterSearchTitle"></div>').append($text).appendTo($frame).css(opts.css.title);
            if (opts.bird) {
                $bird = $('<img class="twitterSearchBird" src="' + opts.birdSrc + '" />').appendTo($title).css(opts.css.bird);
                if (opts.birdLink) {
                    $bird.wrap('<a href="' + opts.birdLink + '"></a>')
                }
            }
            $cont = $('<div class="twitterSearchContainter"></div>').appendTo($frame).css(opts.css.container);
            cont = $cont[0];
            if (opts.colorExterior) {
                $title.css("background-color", opts.colorExterior)
            }
            if (opts.colorInterior) {
                $cont.css("background-color", opts.colorInterior)
            }
            $frame.css(opts.css.frame);
            if (opts.colorExterior) {
                $frame.css("border-color", opts.colorExterior)
            }
            height = $frame.innerHeight() - $title.outerHeight();
            $cont.height(height);
            if (opts.pause) {
                $cont.hover(function(){
                    paused = true
                }, function(){
                    paused = false
                })
            }
            $('<div class="twitterSearchLoading">Loading tweets..</div>').css(opts.css.loading).appendTo($cont);
            grabTweets();
            function grabTweets(){
                var url = opts.url + opts.term;
                grabFlag = false;
                grabbing = true;
                $.getJSONP({
                    url: url,
                    timeout: 30000,
                    error: function(xhr, status, e){
                        failWhale(e)
                    },
                    complete: function(){
                        grabbing = false;
                        if (opts.refreshSeconds) {
                            setTimeout(regrab, opts.refreshSeconds * 1000)
                        }
                    },
                    success: function(json){
                        if (json.error) {
                            failWhale(json.error);
                            return
                        }
                        $cont.fadeOut("fast", function(){
                            $cont.empty();
                            $.each(json.results, function(i){
                                if (!opts.filter.call(opts, this)) {
                                    return
                                }
                                var $img, $text, w, tweet = opts.formatter(this, opts), $tweet = $(tweet);
                                $tweet.css(opts.css.tweet);
                                $img = $tweet.find(".twitterSearchProfileImg").css(opts.css.img);
                                $tweet.find(".twitterSearchUser").css(opts.css.user);
                                $tweet.find(".twitterSearchTime").css(opts.css.time);
                                $tweet.find("a").css(opts.css.a);
                                $tweet.appendTo($cont);
                                $text = $tweet.find(".twitterSearchText").css(opts.css.text);
                                if (opts.avatar) {
                                    w = $img.outerWidth() + parseInt($tweet.css("paddingLeft"));
                                    $text.css("paddingLeft", w)
                                }
                            });
                            $cont.fadeIn("fast");
                            if (json.results.length < 2) {
                                if (opts.refreshSeconds) {
                                    setTimeout(grabTweets, opts.refreshSeconds * 1000)
                                }
                                return
                            }
                            setTimeout(go, opts.timeout)
                        })
                    }
                })
            }
            function regrab(){
                grabFlag = true
            }
            function failWhale(msg){
                var $fail = $('<div class="twitterSearchFail">' + msg + "</div>").css(opts.css.fail);
                $cont.empty().append($fail)
            }
            function go(){
                if (paused || grabbing) {
                    setTimeout(go, 500);
                    return
                }
                var h, $el = $cont.children(":first"), el = $el[0];
                $el.animate(opts.animOut, opts.animOutSpeed, function(){
                    h = $el.outerHeight();
                    $el.animate({
                        marginTop: -h
                    }, opts.animInSpeed, function(){
                        $el.css({
                            marginTop: 0,
                            opacity: 1
                        });
                        /*@cc_on
                         try { el.style.removeAttribute('filter'); } // ie cleartype fix
                         catch(smother) {}
                         @*/
                        $el.css(opts.css.tweet).show().appendTo($cont);
                        setTimeout(grabFlag ? grabTweets : go, opts.timeout)
                    })
                })
            }
        })
    };
    $.fn.twitterSearch.filter = function(tweet){
        return true
    };
    $.fn.twitterSearch.formatter = function(json, opts){
        var str, pretty, text = json.text;
        if (opts.anchors) {
            text = json.text.replace(/(http:\/\/\S+)/g, '<a href="$1">$1</a>');
            text = text.replace(/\@(\w+)/g, '<a href="http://twitter.com/$1">@$1</a>')
        }
        str = '<div class="twitterSearchTweet">';
        if (opts.avatar) {
            str += '<img class="twitterSearchProfileImg" src="' + json.profile_image_url + '" />'
        }
        str += '<div><span class="twitterSearchUser"><a href="http://www.twitter.com/' + json.from_user + "/status/" + json.id_str + '">' + json.from_user + "</a></span>";
        pretty = prettyDate(json.created_at);
        if (opts.time && pretty) {
            str += ' <span class="twitterSearchTime">(' + pretty + ")</span>"
        }
        str += '<div class="twitterSearchText">' + text + "</div></div></div>";
        return str
    };
    $.fn.twitterSearch.defaults = {
        url: "http://search.twitter.com/search.json?callback=?&q=",
        anchors: true,
        animOutSpeed: 500,
        animInSpeed: 500,
        animOut: {
            opacity: 0
        },
        applyStyles: true,
        avatar: true,
        bird: true,
        birdLink: false,
        birdSrc: "http://cloud.github.com/downloads/malsup/twitter/tweet.gif",
        colorExterior: null,
        colorInterior: null,
        filter: null,
        formatter: null,
        pause: false,
        refreshSeconds: 0,
        term: "",
        time: true,
        timeout: 4000,
        title: null,
        titleLink: null,
        css: {
            a: {
                textDecoration: "none",
                color: "#3B5998"
            },
            bird: {
                width: "50px",
                height: "20px",
                position: "absolute",
                left: "-30px",
                top: "-20px",
                border: "none"
            },
            container: {
                overflow: "hidden",
                backgroundColor: "#eee",
                height: "100%"
            },
            fail: {
                background: "#6cc5c3 url(http://cloud.github.com/downloads/malsup/twitter/failwhale.png) no-repeat 50% 50%",
                height: "100%",
                padding: "10px"
            },
            frame: {
                border: "10px solid #C2CFF1",
                borderRadius: "10px",
                "-moz-border-radius": "10px",
                "-webkit-border-radius": "10px"
            },
            tweet: {
                padding: "5px 10px",
                clear: "left"
            },
            img: {
                "float": "left",
                margin: "5px",
                width: "48px",
                height: "48px"
            },
            loading: {
                padding: "20px",
                textAlign: "center",
                color: "#888"
            },
            text: {},
            time: {
                fontSize: "smaller",
                color: "#888"
            },
            title: {
                backgroundColor: "#C2CFF1",
                margin: 0,
                padding: "0 0 5px 0",
                textAlign: "center",
                fontWeight: "bold",
                fontSize: "large",
                position: "relative"
            },
            titleLink: {
                textDecoration: "none",
                color: "#3B5998"
            },
            user: {
                fontWeight: "bold"
            }
        }
    };
    $.getJSONP = function(s){
        s.dataType = "jsonp";
        $.ajax(s);
        var $script = $(document.getElementsByTagName("head")[0].firstChild);
        var url = $script.attr("src") || "";
        var cb = (url.match(/callback=(\w+)/) || [])[1];
        if (!cb) {
            return
        }
        var t = 0, cbFn = window[cb];
        $script[0].onerror = function(e){
            $script.remove();
            handleError(s, {}, "error", e);
            clearTimeout(t)
        };
        if (!s.timeout) {
            return
        }
        window[cb] = function(json){
            clearTimeout(t);
            cbFn(json);
            cbFn = null
        };
        t = setTimeout(function(){
            $script.remove();
            handleError(s, {}, "timeout");
            if (cbFn) {
                window[cb] = function(){
                }
            }
        }, s.timeout);
        function handleError(s, xhr, msg, e){
            s.error && s.error.call(s.context, xhr, msg, e);
            s.global && $.event.trigger("ajaxError", [xhr, s, e || msg]);
            s.complete && s.complete.call(s.context, xhr, e || msg)
        }
    };
    function prettyDate(time){
        var date = new Date((time || "").replace(/-/g, "/").replace(/TZ/g, " ")), diff = (((new Date()).getTime() - date.getTime()) / 1000), day_diff = Math.floor(diff / 86400);
        if (isNaN(day_diff) || day_diff < 0 || day_diff >= 31) {
            return
        }
        var v = day_diff == 0 && (diff < 60 && "just now" || diff < 120 && "1 minute ago" || diff < 3600 && Math.floor(diff / 60) + " minutes ago" || diff < 7200 && "1 hour ago" || diff < 86400 && Math.floor(diff / 3600) + " hours ago") || day_diff == 1 && "Yesterday" || day_diff < 7 && day_diff + " days ago" || day_diff < 31 && Math.ceil(day_diff / 7) + " weeks ago";
        if (!v) {
            window.console && console.log(time)
        }
        return v ? v : ""
    }
})(jQuery);