(function(){
  var loading = null,
      site_url = null;
  $("document").ready(function(){
    loading = $("#loading");
    bindHandlers();
  })
  
  var bindHandlers = function(){
    $("#find-channels").on("click",function(){
      site_url = $("#site-url-wrapper input[type=text]").val();
      $("#site-url-wrapper").fadeOut();
      getChannelList();
    })
  }

  var getChannelList = function(){
    displayLoading(true,"Fetching channels from " + site_url);
    $.ajax({
        url : "/admin/feeds/get_channel_list",
        data : {"url" : site_url},
        dataType : "json",
        type : "get"
      }).done(function(channels){
        $.each(channels.channels,function(index,channel){
            var ch = $("<div id='" + channel.key + "-channel' class='module cursor-pointer'><div class='lead muted'><i class='" + channel.app_icon + "'></i><br/><span style='font-size:14px;'>" + channel.title + "</span></div></div>");
            ch.on("click",function(){
              getFeedList(channel);
            })
            $("#channels").append(ch);
        })
        setTimeout(function(){
          displayLoading(false);
          setTimeout(function(){$("#channels").fadeIn();},500);
        },1000);
      })
  }  

  var getFeedList = function(channel){
    $("#channels").fadeOut(function(){
      $("#channels").html("");
      displayLoading(true,"Fetching feed list for " + channel.title);
      $.ajax({
        url : "/admin/feeds/get_feed_list",
        data : {"url" : site_url, "channel" : channel.key, "feed_list_url" : channel.url},
        dataType : "json",
        type : "get"
      }).done(function(data){
        $.each(data.feeds, function(index,feed){
          var klass = (feed.subscribed ? "active" : "");
          var f = $("<div class='module cursor-pointer " + klass + "'><div class='lead muted'><i class='icons-text-2'></i><br/><span style='font-size:14px;'>" + feed.title_translations[I18n.locale] + "</span></div></div>");
          f.on("click",function(){
            if($(this).hasClass("active")){
              if(confirm("Are you sure, you want to unsubscribe from " + feed.title_translations[I18n.locale] + "?")){
                unsubscribeFeed($(this),feed);
              }
            }else{
              subscribeFeed($(this),feed,channel);
            }
          })
          $("#channels").append(f);
        })
         setTimeout(function(){
            displayLoading(false);
            setTimeout(function(){$("#channels").fadeIn();},500);
          },1000);
      })
    })
  }

  var unsubscribeFeed = function(dom,feed){
     dom.removeClass("active");
     $.ajax({
        url : "/admin/feeds/unsubscribe",
        data : {"feed_uid": feed.uid},
        dataType : "json",
        type : "post"
      }).done(function(){
        $("#selectCategoryModal").modal("hide");
      })
  }

  var subscribeFeed = function(dom,feed,channel){
    var subscribe_button = $("#subscribe-button"),
        select = $("#local-category");
    $("#selectCategoryModal").modal("show");
    subscribe_button.attr("disabled","disabled");
    $.ajax({
      url : "/admin/feeds/get_category_list",
      data : {"channel" : channel.key},
      dataType : "json",
      type : "get"
    }).done(function(data){
      select.html("");
      $.each(data.categories,function(index,category){
        select.append("<option value='" + category.id + "'>" + category.title + "</option>");
      })
      subscribe_button.removeAttr("disabled");
    })
    subscribe_button.unbind("click");
    subscribe_button.on("click",function(){
      dom.addClass("active");
      $.ajax({
        url : "/admin/feeds/subscribe",
        data : {"url" : site_url, "feed" : feed, "channel" : channel.title, "channel_key" : channel.key, "category" : select.val()},
        dataType : "json",
        type : "post"
      }).done(function(){
        $("#selectCategoryModal").modal("hide");
      })
    })

  }

  var displayLoading = function(display, msg){
    if(display){
      loading.find(".progress_msg").text(msg);
      loading.fadeIn();
    }else{
      loading.find(".progress_msg").text("");
      loading.fadeOut();
    }
  }
})();