var current_home_photo = 'home-photo-1';
var current_timeout_id = -1;

$(document).ready(function(){
  setup_email_form_placeholders();
  create_home_scroller();
  setup_contribute_form_radio_buttons();
  populate_twitter_feeds();
});

function setup_email_form_placeholders() {
  $("#first_name").placeholder();
  $("#last_name").placeholder();
  $("#email").placeholder();
  $("#zip").placeholder();
}

function setup_contribute_form_radio_buttons() {
  $('#other_amount').focus(function() {
    $('#donation_amount_0').attr('checked', 'checked');
  });

  $('[name=donation[amount]]').change(function() {
    if ($('[name=donation[amount]]:checked').val() == '0') {
      $('#other_amount').focus();
    } else {
      $('#other_amount').val('');
    }
  });
}

function create_home_scroller() {
  $(".scrollable").scrollable(
    {
      easing: 'easeInOutBack',
      speed: 1100,
      circular: true
    }
  ).navigator(
    {
      navi:'ul.pagination'
    }
  ).autoscroll(
    {
      interval: 10000
    }
  );
}

function populate_twitter_feeds() {
  if ($('#twitter_home_heading').length > 0) {
    $.getScript('http://twitter.com/statuses/user_timeline/senatorisakson.json?callback=twitter_home_callback&count=1');
  }

  if ($('#twitter_sidebar_list').length > 0) {
    $.getScript('http://twitter.com/statuses/user_timeline/senatorisakson.json?callback=twitter_sidebar_callback&count=2');
  }
}

function twitter_home_callback(twitters) {
  var statusHTML = [];
  for (var i=0; i<twitters.length; i++){
    var username = twitters[i].user.screen_name;
    var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
      return '<a href="'+url+'">'+url+'</a>';
    }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
      return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
    });
    statusHTML.push('<p class="twitter-msg">'+status);
  }

  document.getElementById('twitter_home_heading').innerHTML = statusHTML.join('');
}

function twitter_sidebar_callback(twitters) {
  var statusHTML = [];
  for (var i=0; i<twitters.length; i++){
    var username = twitters[i].user.screen_name;
    var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
      return '<a href="'+url+'">'+url+'</a>';
    }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
      return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
    });
    statusHTML.push('<li class="tweet"><p>'+status+'</p> <p class="tweet-meta"><a href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a></p></li>');
  }
  statusHTML.push('<li><a href="http://twitter.com/senatorisakson" class="follow-link">Follow Johnny Isakson on Twitter</a></li>');
  document.getElementById('twitter_sidebar_list').innerHTML = statusHTML.join('');
}

function relative_time(time_value) {
  var values = time_value.split(" ");
  time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
  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);
  delta = delta + (relative_to.getTimezoneOffset() * 60);

  if (delta < 60) {
    return 'less than a minute ago';
  } else if(delta < 120) {
    return 'about a minute ago';
  } else if(delta < (60*60)) {
    return (parseInt(delta / 60)).toString() + ' minutes ago';
  } else if(delta < (120*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';
  }
}