$(document).ready(function() {
   var postText = $('#id_body');
   var postButton = $('#forums-reply-post');
   postButton.click(function () {
      var text = $.trim(postText.val());
      $(this).attr('disabled', 'disabled').val('Posting reply...');

      var attachments = new Array()
      $('#attachment div input').each(function(index) {
         attachments[index] = $(this).val();
      });

      $.ajax({
         url: '/forums/quick-reply/', 
         type: 'POST',
         data: {
            body : postText.val(),
            topic_id : $('#id_topic_id').val(),
            attachment : attachments
         },
         traditional: true,
         dataType: 'html',
         success: function (data, textStatus) {
            postText.val('');
            var lastTr = $('#forum-topic tr:last');
            var newClass = lastTr.hasClass('odd') ? 'even' : 'odd';
            lastTr.after(data);
            lastTr = $('#forum-topic tr:last');
            lastTr.addClass(newClass);
            lastTr.hide();
            lastTr.fadeIn(3000);
            postButton.removeAttr('disabled').val('Submit Reply');
            initAttachments();
         },
         error: function (xhr, textStatus, ex) {
            alert('Oops, an error occurred. ' + xhr.statusText + ' - ' + 
               xhr.responseText);
            postButton.removeAttr('disabled').val('Submit Reply');
            initAttachments();
         }
         });
      return false;
   });
   $('a.post-flag').click(function () {
      var id = this.id;
      if (id.match(/fp-(\d+)/)) {
         id = RegExp.$1;
         if (confirm('Only flag a post if you feel it is spam, abuse, violates site rules, ' +
                 'or is not appropriate. ' +
                 'A moderator will be notified and will review the post. ' +
                 'Are you sure you want to flag this post?')) {
             $.ajax({
               url: '/forums/flag-post/',
               type: 'POST',
               data: {id: id}, 
               dataType: 'text',
               success: function (response, textStatus) {
                  alert(response);
               },
               error: function (xhr, textStatus, ex) {
                  alert('Oops, an error occurred: ' + xhr.statusText + ' - ' + xhr.responseText);
               }
             });
         }
     }
     return false;
   });
   $('a.post-delete').click(function () {
      var id = this.id;
      if (id.match(/dp-(\d+)/)) {
         id = RegExp.$1;
         if (confirm('Are you sure you want to delete this post?')) {
             $.ajax({
               url: '/forums/delete-post/',
               type: 'POST',
               data: {id: id}, 
               dataType: 'text',
               success: function (response, textStatus) {
                  alert(response);
                  $('#post-' + id).fadeOut(3000);
               },
               error: function (xhr, textStatus, ex) {
                  alert('Oops, an error occurred: ' + xhr.statusText + ' - ' + xhr.responseText);
               }
             });
         }
     }
     return false;
   });
   $('#forum-mod-del-topic').click(function () {
         return confirm('Are you sure you want to delete this topic?\n' +
            'WARNING: all posts will be lost.');
   });

   var vid = 0;
   var vidDiv = $('#attachment');

   function clearAttachments()
   {
      $('#attachment div').remove();
      $('#attach-another').remove();
   }

   function processEmbeds(data, textStatus) 
   {
      vidDiv.find('img').remove();
      $.each(data, function(index, value) {
         var html = '<div id="video-' + index + '">' + value.html +
            '<span class="link">' +
            '<img src="/static/icons/television_delete.png" alt="Remove" /> ' +
            '<a href="#">Remove</a></span>' +
            '<input type="hidden" name="attachment" value="' + value.id + '" />';
            '</div>';
         vidDiv.append(html);
         $('#video-' + index + ' a').click(function() {
            $('#video-' + index).remove();
            relabelAttachLink();
            return false;
         });
      });
      vid = data.length;
      $('#video-' + (vid-1)).after('<a id="attach-another" href="#">Attach another video</a>');
      $('#attach-another').click(function() {
         addVideo();
         relabelAttachLink();
         return false;
      });
   }

   function initAttachments()
   {
      clearAttachments();

      var post_input = $('#id_post_id');
      var attachments = $("#forums_post_form input:hidden[name='attachment']");
      if (post_input.length == 1)
      {
         post_id = post_input.val();
         vidDiv.prepend('<img src="/static/icons/ajax_busy.gif" alt="Busy" />');
         $.ajax({
            url: '/forums/fetch_attachments/', 
            type: 'GET',
            data: {
               pid : post_id
            },
            dataType: 'json',
            success: processEmbeds,
            error: function (xhr, textStatus, ex) {
               vidDiv.find('img').remove();
               alert('Oops, an error occurred. ' + xhr.statusText + ' - ' + 
                  xhr.responseText);
            }
         });
      }
      else if (attachments.length > 0)
      {
         vidDiv.prepend('<img src="/static/icons/ajax_busy.gif" alt="Busy" />');
         var embeds = new Array();
         attachments.each(function(index) {
            embeds[index] = $(this).val();
         });
         attachments.remove();
         $.ajax({
            url: '/oembed/fetch_saved/', 
            type: 'GET',
            data: {
               embeds: embeds
            },
            traditional: true,
            dataType: 'json',
            success: processEmbeds,
            error: function (xhr, textStatus, ex) {
               vidDiv.find('img').remove();
               alert('Oops, an error occurred. ' + xhr.statusText + ' - ' + 
                  xhr.responseText);
            }
         });
      }
      else
      {
         vid = 0;
         var s = '<div id="init-add">' +
            '<img src="/static/icons/television_add.png" alt="Add" /> ' +
            '<a href="#">Attach Video</a></div>';
         vidDiv.prepend(s);
         $('#attachment a').click(function () {
            $('#init-add').remove();
            addVideo();
            return false;
         });
      }
   }

   function relabelAttachLink()
   {
      var another = $('#attach-another');
      var n = $('#attachment div').length;
      if (n == 0)
      {
         another.html("Attach a video");
      }
      else
      {
         another.html("Attach another video");
      }
   }

   function addVideo()
   {
      var id = "video-" + vid;

      var fakeForm = '<div id="' + id + '">' +
         '<img src="/static/icons/television_add.png" alt="Attach" class="r" /> ' +
         '<input type="text" size="45" class="r" /> <button type="button" class="r">Attach</button> ' +
         '<a href="#" class="r">Remove</a><br /></div>';

      var n = $('#attachment div').length;

      var another = $('#attach-another');
      if (n == 0)
      {
         if (another.length > 0)
         {
            another.before(fakeForm);
         }
         else
         {
            vidDiv.append(fakeForm);
         }
      }
      else
      {
         $('#attachment div:last').after(fakeForm);
      }

      $('#' + id + ' a').click(function() {
         $('#' + id).remove();
         relabelAttachLink();
         return false;
      });

      var vidText = $('#' + id + ' input');

      $('#' + id + ' button').click(function() {
         var button = $(this);
         button.attr('disabled', 'disabled');
         $.ajax({
            url: '/oembed/fetch/', 
            type: 'POST',
            data: {
               q : vidText.val()
            },
            dataType: 'json',
            success: function (data, textStatus) {
               $('#' + id + " .r").remove();
               var myDiv = $('#' + id);
               var html = '<span class="link">' +
                  '<img src="/static/icons/television_delete.png" alt="Remove" /> ' +
                  '<a href="#">Remove</a></span>' +
                  '<input type="hidden" name="attachment" value="' + data.id + '" />';
               myDiv.prepend(html);
               myDiv.prepend(data.embed);
               $('#' + id + ' a').click(function() {
                  myDiv.remove();
                  relabelAttachLink();
                  return false;
               });
            },
            error: function (xhr, textStatus, ex) {
               alert('Oops, an error occurred. ' + xhr.statusText + ' - ' + 
                  xhr.responseText);
               button.removeAttr('disabled');
            }
         });
      });

      if (vid == 0)
      {
         $('#video-0').after('<a id="attach-another" href="#">Attach another video</a>');
         $('#attach-another').click(function() {
            addVideo();
            relabelAttachLink();
            return false;
         });
      }
      ++vid;
   }

   initAttachments();
});