/* Javascript magic */

$j = jQuery.noConflict();

var ktype_changed=false;
var ktype_color="";
var orig_comments="";
var cur_sort="";
var sort_order=1;

function knbu_disable() {
 $j("#comment").fadeTo(0,0.33);
 $j("#comment")[0].disabled=true;
 $j("#submit")[0].disabled=true;
}

function knbu_enable() {
 $j("#comment")[0].disabled=false;
 $j("#comment").fadeTo("def",1.0).focus();
 $j("#submit")[0].disabled=false;
}

function scaffold_update(callback) {
 var ktype = $j("#knbu_real_ktype")[0].value;
 var link = $j(this);
 $j.post(link.attr("href"), {
   knbu_ktype_info: ktype
  }, function(data) {
   if ( ktype_color ) {
    $j("#knbu_heading,#knbu_popup_heading").removeClass(ktype_color);
   }
   $j("#knbu_heading,#knbu_popup_heading").text(data.name).addClass(data.color);
   ktype_color = data.color;
   $j("#knbu_checklist").html(data.checklist);
   $j("#knbu_popup_p").html(data.description);
   $j("#comment").text(data.phrases);
   $j("#comment").select();
   if (callback) callback();
  }, "json");
}

function scaffold_switch() {
  $j("#knbu_scaffold").fadeTo("slow",1.0);
}

function scaffold_open() {
 $j("#knbu_scaffold").slideDown("slow");
}

$j(document).ready(function() {
 /* Check whether KB is enabled; if not, do nothing */
 if ($j("#knbu").length==0) { return; }

 knbu_disable();

 /* Move selector to correct place */
 $j("#comment").parent().prev().append($j("#knbu"));
 $j("#knbu").show();

 $j("#knbu_select").click(function(e) {
  e.preventDefault();
  if ( ! $j("#knbu_ktype")[0].value ) {
   knbu_disable();
   if ( ! ktype_changed )
    $j("#knbu_ktype").fadeOut("fast").fadeIn("fast").fadeOut("fast").fadeIn("fast");
  } else {
   $j("#knbu_real_ktype").val($j("#knbu_ktype").val());
   $j("#knbu_ktype2").val($j("#knbu_ktype").val());

   scaffold_update(function() {
     scaffold_open();
     $j("#knbu_init").slideUp("slow");
     knbu_enable();
   });
  }
 });
 $j("#knbu_select2").click(function(e) {
  e.preventDefault();
  $j("#knbu_real_ktype").val($j("#knbu_ktype2").val());
  $j("#knbu_scaffold").fadeTo("slow",0.1,function(){scaffold_update(scaffold_switch);});
 });

 $j("#knbu_ktype").select(function(e) {
  ktype_changed=true;
 });

 $j("#knbu_popper").simpleDialog();

 //orig_comments = $j(".commentlist").clone(); 


 $j("#comment_sorter li").click(function(e) {
   e.preventDefault();
   var $target = $j(e.target);
   var $jlist = $j(".commentlist");
   var $coms = $jlist.find("li.comment");
   var coms = $coms.get();
   var doOnce = 0;
   //console.time('total');
   $coms.fadeOut("fast",function() {
	   if (!doOnce) doOnce=1; else return;
	   //console.time('sort');
     if ($target.html()=="as thread") {
       //$jlist.remove("li.comment");
	   //$jlist.replaceWith(orig_comments.clone());
	   //$jlist.after(orig_comments);
       window.location.reload(); /* No easy way to restore threaded information */
       return;
     } else {
	   if ( cur_sort = $target.html() ) sort_order=sort_order*-1; else sort_order=1;
       if ($target.html()=="by date") {
         coms.sort(function(a,b) {
           var ca = $j(a).find(".commentmetadata a:first-child").html();
           var cb = $j(b).find(".commentmetadata a:first-child").html();
           return (ca < cb) ? -1*sort_order: (ca > cb) ? 1*sort_order : 0;
         });
       } else if ($target.html()=="by person") {
         coms.sort(function(a,b) {
           var ca = $j(a).find(".comment-author cite.fn").text().toLowerCase();
           var cb = $j(b).find(".comment-author cite.fn").text().toLowerCase();
           return (ca < cb) ? -1*sort_order: (ca > cb) ? 1*sort_order : 0;
         });
       } else if ($target.html()=="by knowledge type") {
         coms.sort(function(a,b) {
           var ca = $j(a).find(".kbtype-label").html();
           var cb = $j(b).find(".kbtype-label").html();
           return (ca < cb) ? -1*sort_order: (ca > cb) ? 1*sort_order : 0;
         });
       }
       //console.timeEnd('sort');
       //console.time('append');
       $j.each(coms,function(idx,itm) { $j(".commentlist").append(itm); });
       //console.timeEnd('append');
     }
     $j("#comment_sorter li").css("font-weight","normal");
     $target.css("font-weight","bold");
     $coms.fadeIn("slow");
     cur_sort=$target.html();
   });
   //console.timeEnd('total');
 });

});