(function($) {
 
  $.fn.tweet = function(o){
    var s = {
      username: ["SEIL_SMF"],                // [string]   required, unless you want to display our tweets. :) it can be an array, just do ["username1","username2","etc"]
      avatar_size: 25,                        // [integer]  height and width of avatar if displayed (48px max)
      count: 25,                                 // [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?
      loading_text: "loading tweets...",  // [string]   optional loading text, displayed while tweets load
      query: null,                              // [string]   optional search query
      refresh_interval: null,                  // [integer]  optional number of seconds after which to reload tweets
      twitter_url: "twitter.com",               // [string]   custom twitter url, if any (apigee, etc.)
      twitter_api_url: "api.twitter.com",       // [string]   custom twitter api url, if any (apigee, etc.)
      twitter_search_url: "search.twitter.com"  // [string]   custom twitter search url, if any (apigee, etc.)
    };
    
    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://"+s.twitter_url+"/$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://'+s.twitter_search_url+'/search?q=&tag=$1&lang=all&from='+s.username.join("%2BOR%2B")+'">#$1</a>'));
        });
        return $(returning);
      }
    });

    function parse_date(date_str) {
      // The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
      // cannot handle in IE. We therefore perform the following transformation:
      // "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
      return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
    }

    function relative_time(time_value) {
      var parsed_date = parse_date(time_value);
      var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
      var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
      var r = '';
      if (delta < 60) {
        r = delta + ' 秒前';
      } else if(delta < (50*60)) {
        r = (parseInt(delta / 60, 10)).toString() + ' 分前';
      } else if(delta < (24*60*60)) {
        r = '' + (parseInt(delta / 3600, 10)).toString() + ' 時間前';
      } else {
        r = (parseInt(delta / 86400, 10)).toString() + ' 日前';
      }
      return r;
    }

    function build_url() {
      var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
      var query = (s.query || 'from:'+s.username.join(' OR from:'));
      return proto+'//'+s.twitter_api_url+'/1/statuses/user_timeline.json?screen_name='+s.username+'&count='+s.count+'&callback=?';
      //return proto+'//'+s.twitter_search_url+'/search.json?&q='+encodeURIComponent(query)+'&since_id=0&rpp='+s.count+'&callback=?';
    }

    return this.each(function(i, widget){
      var topicsheader = $('<h1>Topics</h1>').appendTo(widget);
      var list = $('<ul class="tweet_list">').appendTo(widget);
      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>');
      var readsuccess = false;
      var alternative = $(''

+'<h2>SEIL/x86 Fuji をリリースしました！</h2>'
+'<div class="article">'
+'x86ベースアーキテクチャ上で動作するソフトウェアルータ「SEIL/x86」(ザイル・エックス・ハチロク)をリリースしました。試用は無料。コンフィグ保存を可能にする機能キーはお試し価格の800円です。ぜひ、ご賞味ください。'
+'</div>'
+'<hr />'

+'<h2>SEIL/X2がIPv6 Ready Logoを取得！</h2>'
+'<div class="article">'
+'SEIL/X2が、「IPv6 Ready Logo Program Phase2」を取得しました。これで現在販売中の３機種（SEIL/X1、SEIL/X2、SEIL/B1）すべてにおいて、「IPv6 Ready Logo Program Phase2」の取得が完了しました。'
+'</div>'
+'<hr />'

+'<h2>SEIL/SMFコミュニティサイトOPEN！</h2>'
+'<div class="article">'
+'<a href="/community/">SEIL/SMFコミュニティサイト</a>をオープンしました。SEILの開発担当者（中の人）が、tipsやノウハウを限定公開。サポートフォーラムでは、SEILに関するちょっとした質問にもお答えしますのでお気軽にご利用ください。'
+'</div>'
+'<hr />'

+'<h2><del>SEIL/x86 無償先行トライアル版 の提供を開始しました</del>（終了しました）</h2>'
+'<div class="article">'
+''
+'</div>'
+'<hr />'

+'<h2>SEIL.jp をリニューアルしました。コンテンツは随時公開予定です。</h2>'
+'<div class="article">'
+''
+'</div>'
+'<hr />'

+'<h2>Twitterはじめました！</h2>'
+'<div class="article">'
+' SEIL/SMF 公式Twitterはじめました！アカウントは、「<a href="http://twitter.com/SEIL_SMF">SEIL_SMF</a>」です。よろしくお願いします。'
+'</div>'
+'<hr />'

);

      if(typeof(s.username) == "string"){
        s.username = [s.username];
      }
      if (s.loading_text) $(widget).append(loading);
      $(widget).bind("load", function(){
        $.getJSON(build_url(), function(data){
          topicsheader.empty();
          topicsheader.append('Topics on Twitter');
          if (s.loading_text) loading.remove();
          if (s.intro_text) list.before(intro);
          list.empty();
          var tweets = data;
          $.each(tweets, function(i,item){
            var from_user = item.from_user || item.user.screen_name;
            var profile_image_url = item.profile_image_url || item.user.profile_image_url;
            var avatar_template = '<a class="tweet_avatar" href="http://'+s.twitter_url+'/'+from_user+'"><img src="'+profile_image_url+'" height="'+s.avatar_size+'" width="'+s.avatar_size+'" alt="'+from_user+'\'s avatar" title="'+from_user+'\'s avatar" border="0"/></a>';
            var avatar = (s.avatar_size ? avatar_template : '');
            var date = '<span class="tweet_time"><a href="http://'+s.twitter_url+'/'+from_user+'/statuses/'+item.id_str+'" title="view tweet on twitter">'+relative_time(item.created_at)+'</a></span>'
            var tmptext = item.text;
            var text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash()[0]+ '</span>';
            
            // until we create a template option, arrange the items below to alter a tweet's display.

            //

            if (tmptext.charAt(0) == "@"){
            }else if(tmptext.match(/.*RT(\s@[a-zA-Z0-9_].*|.*@[a-zA-Z0-9_].*)/)){
            }else{
              list.append('<li>' + avatar + text + '<br/>' + date + '</li>');
              list.children('li:first').addClass('tweet_first');
              list.children('li:odd').addClass('tweet_even');
              list.children('li:even').addClass('tweet_odd');
            }      
          });
          readsuccess = true;
          if (s.outro_text) list.after(outro);
          $(widget).trigger("loaded").trigger((tweets.length == 0 ? "empty" : "full"));
          if (s.refresh_interval) {
            window.setTimeout(function() { $(widget).trigger("load"); }, 1000 * s.refresh_interval);
          }
        });//.getJSON
        if(!readsuccess){
          loading.remove();
          $(widget).append(alternative);
        }
      }).trigger("load");
      
    });
  };
})(jQuery);