// Extend Zepto with .trim()

(function($) {
  var nativeTrim = String.prototype.trim;
  $.trim = function(str, characters){
    if (!characters && nativeTrim) {
      return nativeTrim.call(str);
    }
    characters = defaultToWhiteSpace(characters);
    return str.replace(new RegExp('\^[' + characters + ']+|[' + characters + ']+$', 'g'), '');
  };
}) (Zepto);


// Extend Zepto with jQuery like .data()

(function($) {
  var data = {}, dataAttr = $.fn.data,
    uuid = $.uuid = +new Date(),
    exp = $.expando = 'Zepto' + uuid;

  function getData(node, name) {
    var id = node[exp], store = id && data[id];
    return name === undefined ? store || setData(node) :
      (store && store[name]) || dataAttr.call($(node), name);
  }

  function setData(node, name, value) {
    var id = node[exp] || (node[exp] = ++uuid),
      store = data[id] || (data[id] = {});
    if (name !== undefined) store[name] = value;
    return store;
  };

  $.fn.data = function(name, value) {
    return value === undefined ?
      this.length == 0 ? undefined : getData(this[0], name) :
      this.each(function(idx){
        setData(this, name, $.isFunction(value) ?
                value.call(this, idx, getData(this, name)) : value);
      });
  };
})(Zepto);


// .timeago functionality.

(function($) {
  $.timeago = function(timestamp) {
    if (timestamp instanceof Date) {
      return inWords(timestamp);
    } else if (typeof timestamp === "string") {
      return inWords($.timeago.parse(timestamp));
    } else {
      return inWords($.timeago.datetime(timestamp));
    }
  };
  var $t = $.timeago;

  $.extend($.timeago, {
    settings: {
      refreshMillis: 60000,
      allowFuture: false,
      strings: {
        prefixAgo: null,
        prefixFromNow: null,
        suffixAgo: "ago",
        suffixFromNow: "from now",
        seconds: "less than a minute",
        minute: "about a minute",
        minutes: "%d minutes",
        hour: "about an hour",
        hours: "about %d hours",
        day: "a day",
        days: "%d days",
        month: "about a month",
        months: "%d months",
        year: "about a year",
        years: "%d years",
        numbers: []
      }
    },
    inWords: function(distanceMillis) {
      var $l = this.settings.strings;
      var prefix = $l.prefixAgo;
      var suffix = $l.suffixAgo;
      if (this.settings.allowFuture) {
        if (distanceMillis < 0) {
          prefix = $l.prefixFromNow;
          suffix = $l.suffixFromNow;
        }
      }

      var seconds = Math.abs(distanceMillis) / 1000;
      var minutes = seconds / 60;
      var hours = minutes / 60;
      var days = hours / 24;
      var years = days / 365;

      function substitute(stringOrFunction, number) {
        var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;
        var value = ($l.numbers && $l.numbers[number]) || number;
        return string.replace(/%d/i, value);
      }

      var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
        seconds < 90 && substitute($l.minute, 1) ||
        minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
        minutes < 90 && substitute($l.hour, 1) ||
        hours < 24 && substitute($l.hours, Math.round(hours)) ||
        hours < 48 && substitute($l.day, 1) ||
        days < 30 && substitute($l.days, Math.floor(days)) ||
        days < 60 && substitute($l.month, 1) ||
        days < 365 && substitute($l.months, Math.floor(days / 30)) ||
        years < 2 && substitute($l.year, 1) ||
        substitute($l.years, Math.floor(years));

      return $.trim([prefix, words, suffix].join(" "));
    },
    parse: function(iso8601) {
      var s = $.trim(iso8601);
      s = s.replace(/\.\d\d\d+/,""); // remove milliseconds
      s = s.replace(/-/,"/").replace(/-/,"/");
      s = s.replace(/T/," ").replace(/Z/," UTC");
      s = s.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
      return new Date(s);
    },
    datetime: function(elem) {
      // jQuery's `is()` doesn't play well with HTML5 in IE
      var isTime = $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");
      var iso8601 = isTime ? $(elem).attr("datetime") : $(elem).attr("title");
      return $t.parse(iso8601);
    }
  });

  $.fn.timeago = function() {
    var self = this;
    self.each(refresh);

    var $s = $t.settings;
    if ($s.refreshMillis > 0) {
      setInterval(function() { self.each(refresh); }, $s.refreshMillis);
    }
    return self;
  };

  function refresh() {
    var data = prepareData(this);
    if (!isNaN(data.datetime)) {
      $(this).text(inWords(data.datetime));
    }
    return this;
  }

  function prepareData(element) {
    element = $(element);
    if (!element.data("timeago")) {
      element.data("timeago", { datetime: $t.datetime(element) });
      var text = $.trim(element.text());
      if (text.length > 0) {
        element.attr("title", text);
      }
    }
    return element.data("timeago");
  }

  function inWords(date) {
    return $t.inWords(distance(date));
  }

  function distance(date) {
    return (new Date().getTime() - date.getTime());
  }

  // fix for IE6 suckage
  document.createElement("abbr");
  document.createElement("time");
}(Zepto));



$(document).ready(function() {

  // Pretty up all the .timeago spans.
  $(".timeago").timeago();

    // using jquery built in get json method with twitter api, return only one result
    // $.getJSON('http://api.twitter.com/1/statuses/user_timeline.json?screen_name=amdavidson&count=1&callback=?', function(data)      {
    $.getJSON('/dynamic/twitter.json', function(data) {
              
        // get the date and make it pretty
        var date = Zepto.timeago(data[0].created_at.substring(3,11) + 
          data[0].created_at.substring(25,30) + 
          data[0].created_at.substring(10,19) + 
          data[0].created_at.substring(19,25));
          
        // result returned
        var tweet = data[0].text;
      
        // process links and @replies
        tweet = tweet.replace(/(\b(https?):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, function(url) {
            return '<a href="'+url+'">'+url+'</a>';
        }).replace(/@([_a-z0-9]+)/ig, function(reply) {
            return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
        });
      
        // output the result
        $("#tweet").html('"'+tweet+'"');
        $("#tweet-date").html(date);
        
        // display the twitter block
        $("#twitter").css('display', 'block');
    });
	
	// using jquery built in get json method with pinboard api,
  // $.getJSON('http://feeds.pinboard.in/json/v1/u:amdavidson?format=json&cb=?', function(data)      {
  $.getJSON('/dynamic/pinboard.json', function(data)  { 

        // get the title.
        title = data[0].d;
       
        // get the url.
        url = data[0].u;
        
        // get the description.
        description = data[0].n;
      
        // get the date and make it pretty.
        date = Zepto.timeago(data[0].dt);
      
        // output the result
        $("#pin-title").html(title);
        $("#pin-description").html(description);
        $("#pin-link").attr('href', url);
        $("#pin-date").html(date);
        
        $("#pinboard").css('display', 'block');
    });  
	
});