/*
* Tweet! (http://tweet.seaofclouds.com/)
* 
* Modified by: Jared Lobberecht
* Date: 2010.01.19
* Summary: Added automatic refresh timer using a modified version of jQuery.timers plugin v1.1.2 (http://plugins.jquery.com/project/timers)
**/

(function($) {

    $.fn.tweet = function(o) {
        var s = {
            username: [""],              // [string]   required, unless you want to display our tweets. :) it can be an array, just do ["username1","username2","etc"]
            avatar_size: null,                      // [integer]  height and width of avatar if displayed (48px max)
            count: 3,                               // [integer]  how many tweets to display?
            intro_text: null,                       // [string]   do you want text BEFORE your your tweets?
            outro_text: null,                       // [string]   do you want text AFTER your tweets?
            join_text: null,                       // [string]   optional text in between date and tweet, try setting to "auto"
            auto_join_text_default: "i said,",      // [string]   auto text for non verb: "i said" bullocks
            auto_join_text_ed: "i",                 // [string]   auto text for past tense: "i" surfed
            auto_join_text_ing: "i am",             // [string]   auto tense for present tense: "i was" surfing
            auto_join_text_reply: "i replied to",   // [string]   auto tense for replies: "i replied to" @someone "with"
            auto_join_text_url: "i was looking at", // [string]   auto tense for urls: "i was looking at" http:...
            loading_text: null,                     // [string]   optional loading text, displayed while tweets load
            query: null,                             // [string]   optional search query
            refresh: "60s",
            max_refresh_count: 10000
        };

		if(o) $.extend(s, o);
		
        $.fn.extend({
            linkUrl: function() {
                var returning = [];
                var regexp = /((ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?)/gi;
                this.each(function() {
                    returning.push(this.replace(regexp, "<a href=\"$1\">$1</a>"))
                });
                return $(returning);
            },
            linkUser: function() {
                var returning = [];
                var regexp = /[\@]+([A-Za-z0-9-_]+)/gi;
                this.each(function() {
                    returning.push(this.replace(regexp, "<a href=\"http://twitter.com/$1\">@$1</a>"))
                });
                return $(returning);
            },
            linkHash: function() {
                var returning = [];
                var regexp = /[\#]+([A-Za-z0-9-_]+)/gi;
                this.each(function() {
                    returning.push(this.replace(regexp, ' <a href="http://search.twitter.com/search?q=&tag=$1&lang=all&from=' + s.username.join("%2BOR%2B") + '">#$1</a>'))
                });
                return $(returning);
            },
            capAwesome: function() {
                var returning = [];
                this.each(function() {
                    returning.push(this.replace(/(a|A)wesome/gi, 'AWESOME'))
                });
                return $(returning);
            },
            capEpic: function() {
                var returning = [];
                this.each(function() {
                    returning.push(this.replace(/(e|E)pic/gi, 'EPIC'))
                });
                return $(returning);
            },
            makeHeart: function() {
                var returning = [];
                this.each(function() {
                    returning.push(this.replace(/[&lt;]+[3]/gi, "<tt class='heart'>&#x2665;</tt>"))
                });
                return $(returning);
            }
        });

        function relative_time(time_value) {
            var parsed_date = Date.parse(time_value);
            var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
            var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
            if (delta < 60) {
                return 'less than a minute ago';
            } else if (delta < 120) {
                return 'about a minute ago';
            } else if (delta < (45 * 60)) {
                return (parseInt(delta / 60)).toString() + ' minutes ago';
            } else if (delta < (90 * 60)) {
                return 'about an hour ago';
            } else if (delta < (24 * 60 * 60)) {
                return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
            } else if (delta < (48 * 60 * 60)) {
                return '1 day ago';
            } else {
                return (parseInt(delta / 86400)).toString() + ' days ago';
            }
        }

        return this.each(function() {
            var list = $('<ul class="tweet_list">').appendTo(this);
            var intro = '<p class="tweet_intro">' + s.intro_text + '</p>'
            var outro = '<p class="tweet_outro">' + s.outro_text + '</p>'
            var loading = $('<p class="loading">' + s.loading_text + '</p>');
            if (typeof (s.username) == "string") {
                s.username = [s.username];
            }
            var query = '';
            if (s.query) {
                query += 'q=' + s.query;
            }
            query += '&q=from:' + s.username.join('%20OR%20from:');
            var url = 'http://search.twitter.com/search.json?&' + query + '&rpp=' + s.count + '&callback=?';
            if (s.loading_text) $(this).append(loading);

            $(this).everyTimeAndNow(s.refresh, "tweet", function(el, count) {

                $.getJSON(url, function(data) {
                    if (s.loading_text) loading.remove();

                    //Clear list of previous tweets
                    list.empty();

                    if (s.intro_text) list.before(intro);
                    $.each(data.results, function(i, item) {
                        // auto join text based on verb tense and content
                        if (s.join_text == "auto") {
                            if (item.text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
                                var join_text = s.auto_join_text_reply;
                            } else if (item.text.match(/(^\w+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+) .*/i)) {
                                var join_text = s.auto_join_text_url;
                            } else if (item.text.match(/^((\w+ed)|just) .*/im)) {
                                var join_text = s.auto_join_text_ed;
                            } else if (item.text.match(/^(\w*ing) .*/i)) {
                                var join_text = s.auto_join_text_ing;
                            } else {
                                var join_text = s.auto_join_text_default;
                            }
                        } else {
                            var join_text = s.join_text;
                        };

                        var join_template = '<span class="tweet_join"> ' + join_text + ' </span>';
                        var join = ((s.join_text) ? join_template : ' ')
                        var avatar_template = '<a class="tweet_avatar" href="http://twitter.com/' + item.from_user + '"><img src="' + item.profile_image_url + '" height="' + s.avatar_size + '" width="' + s.avatar_size + '" alt="' + item.from_user + '\'s avatar" border="0"/></a>';
                        var avatar = (s.avatar_size ? avatar_template : '')
                        var date = '<a class="tweet_avatar_name" href="http://twitter.com/' + item.from_user + '">'+ item.from_user + '</a> <a href="http://twitter.com/' + item.from_user + '/statuses/' + item.id + '" title="view tweet on twitter">' + relative_time(item.created_at) + '</a>';
                        var text = '<span class="tweet_text">' + $([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0] + '</span>';

                        // until we create a template option, arrange the items below to alter a tweet's display.
                        list.append('<li>' + avatar + date + join + text + '</li>');

                        list.children('li:first').addClass('tweet_first');
                        list.children('li:odd').addClass('tweet_even');
                        list.children('li:even').addClass('tweet_odd');
                        list.children('li:last').addClass('tweet_last');
                    });
                    if (s.outro_text) list.after(outro);
                });

            }, s.max_refresh_count, true);

        });

    };
})(jQuery);


/**
* jQuery.timers - Timer abstractions for jQuery
* Written by Blair Mitchelmore (blair DOT mitchelmore AT gmail DOT com)
* Licensed under the WTFPL (http://sam.zoy.org/wtfpl/).
* Date: 2009/02/08
*
* @author Blair Mitchelmore
* @version 1.1.2
*
* Modified: Jared Lobberecht
* Date: A while ago
* Summary: Added everyTimeAndNow function
**/

jQuery.fn.extend({
    everyTimeAndNow: function(interval, label, fn, times, belay) {
        fn.call(null, -1);
        return this.everyTime(interval, label, fn, times, belay);
    },
    everyTime: function(interval, label, fn, times, belay) {
        return this.each(function() {
            jQuery.timer.add(this, interval, label, fn, times, belay);
        });
    },
    oneTime: function(interval, label, fn) {
        return this.each(function() {
            jQuery.timer.add(this, interval, label, fn, 1);
        });
    },
    stopTime: function(label, fn) {
        return this.each(function() {
            jQuery.timer.remove(this, label, fn);
        });
    }
});

jQuery.extend({
    timer: {
        global: [],
        guid: 1,
        dataKey: "jQuery.timer",
        regex: /^([0-9]+(?:\.[0-9]*)?)\s*(.*s)?$/,
        powers: {
            // Yeah this is major overkill...
            'ms': 1,
            'cs': 10,
            'ds': 100,
            's': 1000,
            'das': 10000,
            'hs': 100000,
            'ks': 1000000
        },
        timeParse: function(value) {
            if (value == undefined || value == null)
                return null;
            var result = this.regex.exec(jQuery.trim(value.toString()));
            if (result[2]) {
                var num = parseFloat(result[1]);
                var mult = this.powers[result[2]] || 1;
                return num * mult;
            } else {
                return value;
            }
        },
        add: function(element, interval, label, fn, times, belay) {
            var counter = 0;

            if (jQuery.isFunction(label)) {
                if (!times)
                    times = fn;
                fn = label;
                label = interval;
            }

            interval = jQuery.timer.timeParse(interval);

            if (typeof interval != 'number' || isNaN(interval) || interval <= 0)
                return;

            if (times && times.constructor != Number) {
                belay = !!times;
                times = 0;
            }

            times = times || 0;
            belay = belay || false;

            var timers = jQuery.data(element, this.dataKey) || jQuery.data(element, this.dataKey, {});

            if (!timers[label])
                timers[label] = {};

            fn.timerID = fn.timerID || this.guid++;

            var handler = function() {
                if (belay && this.inProgress)
                    return;
                this.inProgress = true;
                if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
                    jQuery.timer.remove(element, label, fn);
                this.inProgress = false;
            };

            handler.timerID = fn.timerID;

            if (!timers[label][fn.timerID])
                timers[label][fn.timerID] = window.setInterval(handler, interval);

            this.global.push(element);

        },
        remove: function(element, label, fn) {
            var timers = jQuery.data(element, this.dataKey), ret;

            if (timers) {

                if (!label) {
                    for (label in timers)
                        this.remove(element, label, fn);
                } else if (timers[label]) {
                    if (fn) {
                        if (fn.timerID) {
                            window.clearInterval(timers[label][fn.timerID]);
                            delete timers[label][fn.timerID];
                        }
                    } else {
                        for (var fn in timers[label]) {
                            window.clearInterval(timers[label][fn]);
                            delete timers[label][fn];
                        }
                    }

                    for (ret in timers[label]) break;
                    if (!ret) {
                        ret = null;
                        delete timers[label];
                    }
                }

                for (ret in timers) break;
                if (!ret)
                    jQuery.removeData(element, this.dataKey);
            }
        }
    }
});

jQuery(window).bind("unload", function() {
    jQuery.each(jQuery.timer.global, function(index, item) {
        jQuery.timer.remove(item);
    });
});