function show_peers (TorrentID, Page) {
  if (Page > 0) {
    ajax.get('torrents.php?action=peerlist&page=' + Page + '&torrentid=' + TorrentID, function(response) {
      $('#peers_' + TorrentID).gshow().raw().innerHTML = response;
    });
  } else {
    if ($('#peers_' + TorrentID).raw().innerHTML === '') {
      $('#peers_' + TorrentID).gshow().raw().innerHTML = '<h4>Loading...</h4>';
      ajax.get('torrents.php?action=peerlist&torrentid=' + TorrentID, function(response) {
        $('#peers_' + TorrentID).gshow().raw().innerHTML = response;
      });
    } else {
      $('#peers_' + TorrentID).gtoggle();
    }
  }
  $('#snatches_' + TorrentID).ghide();
  $('#downloads_' + TorrentID).ghide();
  $('#files_' + TorrentID).ghide();
  $('#reported_' + TorrentID).ghide();
}

function show_snatches (TorrentID, Page) {
  if (Page > 0) {
    ajax.get('torrents.php?action=snatchlist&page=' + Page + '&torrentid=' + TorrentID, function(response) {
      $('#snatches_' + TorrentID).gshow().raw().innerHTML = response;
    });
  } else {
    if ($('#snatches_' + TorrentID).raw().innerHTML === '') {
      $('#snatches_' + TorrentID).gshow().raw().innerHTML = '<h4>Loading...</h4>';
      ajax.get('torrents.php?action=snatchlist&torrentid=' + TorrentID, function(response) {
        $('#snatches_' + TorrentID).gshow().raw().innerHTML = response;
      });
    } else {
      $('#snatches_' + TorrentID).gtoggle();
    }
  }
  $('#peers_' + TorrentID).ghide();
  $('#downloads_' + TorrentID).ghide();
  $('#files_' + TorrentID).ghide();
  $('#reported_' + TorrentID).ghide();
}

function show_downloads (TorrentID, Page) {
  if (Page > 0) {
    ajax.get('torrents.php?action=downloadlist&page=' + Page + '&torrentid=' + TorrentID, function(response) {
      $('#downloads_' + TorrentID).gshow().raw().innerHTML = response;
    });
  } else {
    if ($('#downloads_' + TorrentID).raw().innerHTML === '') {
      $('#downloads_' + TorrentID).gshow().raw().innerHTML = '<h4>Loading...</h4>';
      ajax.get('torrents.php?action=downloadlist&torrentid=' + TorrentID, function(response) {
        $('#downloads_' + TorrentID).raw().innerHTML = response;
      });
    } else {
      $('#downloads_' + TorrentID).gtoggle();
    }
  }
  $('#peers_' + TorrentID).ghide();
  $('#snatches_' + TorrentID).ghide();
  $('#files_' + TorrentID).ghide();
  $('#reported_' + TorrentID).ghide();
}

function show_files(TorrentID) {
  $('#files_' + TorrentID).gtoggle();
  $('#peers_' + TorrentID).ghide();
  $('#snatches_' + TorrentID).ghide();
  $('#downloads_' + TorrentID).ghide();
  $('#reported_' + TorrentID).ghide();
}

function show_reported(TorrentID) {
  $('#files_' + TorrentID).ghide();
  $('#peers_' + TorrentID).ghide();
  $('#snatches_' + TorrentID).ghide();
  $('#downloads_' + TorrentID).ghide();
  $('#reported_' + TorrentID).gtoggle();
}

function add_tag(tag) {
  if ($('#tags').raw().value == "") {
    $('#tags').raw().value = tag;
  } else {
    $('#tags').raw().value = $('#tags').raw().value + ", " + tag;
  }
}

function toggle_group(groupid, link, event) {
  window.getSelection().removeAllRanges()
  var toToggle = (event.shiftKey) ? $('.group_torrent') : $('.groupid_'+groupid)
  var toReButton = (event.shiftKey) ? $('.hide_torrents, .show_torrents') : [link.parentNode]
  if (link.parentNode.className == "hide_torrents") {
    for (var i = 0; i < toToggle.length; i++) {
      toToggle[i].classList.add('hidden')
    }
    for (var i = 0; i < toReButton.length; i++) {
      toReButton[i].className = "show_torrents"
    }
  } else {
    for (var i = 0; i < toToggle.length; i++) {
      toToggle[i].classList.remove('hidden')
    }
    for (var i = 0; i < toReButton.length; i++) {
      toReButton[i].className = "hide_torrents"
    }
  }
}

/*
function toggle_group(groupid, link, event) {
  var clickedRow = link;
  while (clickedRow.nodeName != 'TR') {
    clickedRow = clickedRow.parentNode;
  }
  var group_rows = clickedRow.parentNode.children;
  var showing = $(clickedRow).nextElementSibling().has_class('hidden');
  var allGroups = event.ctrlKey;

  // for dealing with Mac OS X
  // http://stackoverflow.com/a/3922353
  var allGroupsMac = (
        event.keyCode == 91 // WebKit (left apple)
        || event.keyCode == 93 // WebKit (right apple)
        || event.keyCode == 224 // Firefox
        || event.keyCode == 17 // Opera
        ) ? 91 : null;

  for (var i = 0; i < group_rows.length; i++) {
    var row = $(group_rows[i]);
    if (row.has_class('colhead_dark')) {
      continue;
    }
    if (row.has_class('colhead')) {
      continue;
    }
    var relevantRow = row.has_class('group') ? $(group_rows[i + 1]) : row;
    if (allGroups || allGroupsMac || relevantRow.has_class('groupid_' + groupid)) {
      row = $(group_rows[i]); // idk why we need this :S
      if (row.has_class('group')) {
        var section;
        if (location.pathname.search('/artist.php$') !== -1) {
          section = 'in this release type.';
        } else {
          section = 'on this page.';
        }
        var tooltip = showing
          ? 'Collapse this group. Hold "Ctrl" while clicking to collapse all groups '+section
          : 'Expand this group. Hold "Ctrl" while clicking to expand all groups '+section;
        $('a.show_torrents_link', row).updateTooltip(tooltip);
        $('a.show_torrents_link', row).raw().parentNode.className = (showing) ? 'hide_torrents' : 'show_torrents';
      } else {
        if (showing) {
          // show the row depending on whether the edition it's in is collapsed or not
          if (row.has_class('edition')) {
            row.gshow();
            var showRow = ($('a', row.raw()).raw().innerHTML != '+');
          } else {
            if (showRow) {
              row.gshow();
            } else {
              row.ghide();
            }
          }
        } else {
          row.ghide();
        }
      }
    }
  }
  if (event.preventDefault) {
    event.preventDefault();
  } else {
    // for IE < 9 support
    event.returnValue = false;
  }
}
*/

function toggle_edition(groupid, editionid, lnk, event) {
  var clickedRow = lnk;
  while (clickedRow.nodeName != 'TR') {
    clickedRow = clickedRow.parentNode;
  }
  //var showing = has_class(nextElementSibling(clickedRow), 'hidden');
  var showing = $(clickedRow).nextElementSibling().has_class('hidden');
  var allEditions = event.ctrlKey;
  var group_rows = $('tr.groupid_' + groupid);
  for (var i = 0; i < group_rows.length; i++) {
    var row = $(group_rows.raw(i));
    if (row.has_class('edition') && (allEditions || row.raw(0) == clickedRow)) {
      var tooltip = showing
        ? 'Collapse this edition. Hold "Ctrl" while clicking to collapse all editions in this torrent group.'
        : 'Expand this edition. Hold "Ctrl" while clicking to expand all editions in this torrent group.';
      $('a', row).raw().innerHTML = (showing) ? '&minus;' : '+';
      $('a', row).updateTooltip(tooltip);
      continue;
    }
    if (allEditions || row.has_class('edition_' + editionid)) {
      if (showing && !row.has_class('torrentdetails')) {
        row.gshow();
      } else {
        row.ghide();
      }
    }
  }
  if (event.preventDefault) {
    event.preventDefault();
  } else {
    // for IE < 9 support
    event.returnValue = false;
  }
}

function toggleTorrentSearch(mode) {
  if (mode == 0) {
    var link = $('#ft_toggle').raw();
    $('#ft_container').gtoggle();
    link.innerHTML = link.textContent == 'Hide' ? 'Show' : 'Hide';
  }
  if (mode == 'basic') {
    $('.fti_advanced').disable();
    $('.fti_basic').enable();
    $('.ftr_advanced').ghide(true);
    $('.ftr_basic').gshow();
    $('#ft_advanced').ghide();
    $('#ft_basic').gshow();
    $('#ft_type').raw().value = 'basic';
  } else if (mode == 'advanced') {
    $('.fti_advanced').enable();
    $('.fti_basic').disable();
    $('.ftr_advanced').gshow();
    $('.ftr_basic').ghide();
    $('#ft_advanced').gshow();
    $('#ft_basic').ghide();
    $('#ft_type').raw().value = 'advanced';
  }
  return false;
}

var coverFieldCount = 0;
var hasCoverAddButton = false;

function addCoverField() {
  if (coverFieldCount >= 100) {
    return;
  }
  var x = $('#add_cover').raw();
  x.appendChild(document.createElement("br"));
  var field = document.createElement("input");
  field.type = "text";
  field.name = "image[]";
  field.placeholder = "URL";
  x.appendChild(field);
  x.appendChild(document.createTextNode(' '));
  var summary = document.createElement("input");
  summary.type = "text";
  summary.name = "summary[]";
  summary.placeholder = "Summary";
  x.appendChild(summary);
  coverFieldCount++;

  if (!hasCoverAddButton) {
    x = $('#add_covers_form').raw();
    field = document.createElement("input");
    field.type = "submit";
    field.value = "Add";
    x.appendChild(field);
    hasCoverAddButton = true;
  }
}

function ToggleEditionRows() {
  $('#edition_title').gtoggle();
  $('#edition_label').gtoggle();
  $('#edition_catalogue').gtoggle();
}