// Log filter script, from ]
// Created by ] & amended ]
// Huwiki version/A magyar Wikipédia használatára átdolgozta: Tgr

/* <li> element Filter Script, version 
* Should currently work on all known skins (with a #contentSub or #topbar)
*/

var LogFilter = window.LogFilter || {};
$.extend(LogFilter, {
  msg: {
    linkText: 'Szűrés',
    linkTooltip: 'A lista szűrése reguláris kifejezésekkel',
    instructionsGeneral: 'A lista szöveges változatát szűrheted →reguláris kifejezésekkel.',
    instructionsRights: 'Regex filter the space-delimited list of rights.',
    legend: '<li> tagekkel tagolt lista szűrése (javascript)',
    optionAddedRights: 'added rights',
    optionRemovedRights: 'removed rights',
    optionAddedOrRemoved: 'added OR removed',
    optionARS: 'added/removed/static',
    regexLabel: ' Reguláris kifejezés: ',
    invertLabel: 'Megfordítás ',
    filterLabel: 'Szűrés',
    highlightLabel: 'Kiemelés'
  },
  // rightRegexp: /^.*?User\:.*? from (.*?) to (.*?) \u200E.*?$/i, //the regex used to grab the Special:Log/rights changes
  rightRegexp: /^.*?szerkesztő felhasználó jogait \(régi: (.*?); új: (.*?)\).*$/i,
  enabledSpecialPages: ,
  
  init: function() {
    LogFilter.isRightsLog = 
      (document.location.href.indexOf('type=rights') != -1) 
      || (mw.config.get('wgPageName').indexOf('/rights') != -1);
    if (
      mw.config.get('wgAction') == 'history' 
      || $.inArray(mw.config.get('wgCanonicalSpecialPageName'), LogFilter.enabledSpecialPages) > -1 
      || queryString('lifilter')
    ) {
      $(LogFilter.filterLiButton);
    }
  },
  
  filterLiButton: function() {
    if ($('#p-cactions').length) {
      mw.util.addPortletLink('p-cactions', '#', LogFilter.msg.linkText, 'ca-rxfilter', LogFilter.msg.linkTooltip);
      $('#ca-rxfilter').click(LogFilter.filterLiForm);
      if(LogFilter.AutoLoadLogsFilter || queryString('lifilter')) {
        LogFilter.filterLiForm();
      }
    } else {
      LogFilter.filterLiForm(); //not a portlet skin, so add the filter anyway.
    }
  },

  filterLiForm: function() {
    var instructions = (LogFilter.isRightsLog) ? LogFilter.msg.instructionsRights : LogFilter.msg.instructionsGeneral;
    //generate the form
    $('#ca-rxfilter').css('display', 'none');
    var parent = $('#contentSub');
    if (!parent.length) {
      parent = $('#topbar');
    }
    if (!parent.length) {
      return;
    }
    var fieldset = $('<fieldset>');
    $('<p>').text(instructions).appendTo(fieldset);
    $('<legend>').text(LogFilter.msg.legend).appendTo(fieldset);
    if (LogFilter.isRightsLog) {
      var select = $('<select>').attr({id: 'rfselect'}).appendTo(fieldset);
      $.each([
        LogFilter.msg.optionAddedRights,
        LogFilter.msg.optionRemovedRights,
        LogFilter.msg.optionAddedOrRemoved,
        LogFilter.msg.optionARS
      ], function(i, text) {
        $('<option>').val(i).text(text).appendTo(select);
      });
    }
    $('<label>').attr('for', 'rfinput1').text(LogFilter.msg.regexLabel).appendTo(fieldset);
    fieldset.append(' ');
    $('<input>').attr({id: 'rfinput1', name: 'rfinput1', type: 'text'}).appendTo(fieldset);
    $('<input>').attr({id: 'rfinput2', name: 'rfinput2', type: 'checkbox'}).appendTo(fieldset);
    $('<label>').attr('for', 'rfinput2').text(LogFilter.msg.invertLabel).appendTo(fieldset);
    $('<input>').attr({type: 'button', value: LogFilter.msg.filterLabel}).appendTo(fieldset).click(function() {
      LogFilter.filterLi(false);
    });
    fieldset.append(' ');
    $('<input>').attr({type: 'button', value: LogFilter.msg.highlightLabel}).appendTo(fieldset).click(function() {
      LogFilter.filterLi(true);
    });
    $('<div>').attr({id: 'rfform'}).css({color: 'black'}).append(fieldset).appendTo(parent);
  },

  filterLi: function(highlight) {
    //grab options from form
    if (LogFilter.isRightsLog) {
      var type = parseInt($('#rfselect').val());
    }
    var invert = $('#rfinput2').is(':checked');
    var regexp = new RegExp($('#rfinput1').val(), 'ig');

    //grab the list of all <li> in the content
    var body = $('#bodyContent');
    if (!body.length) {
      body = $('body');
    }
    var lis = body.find('li');
    if (!lis.length) {
      return;
    }

    //iterate
    var hidden = $();
    lis.each(function(i, element) {
      var li = $(element);
      if (LogFilter.isRightsLog) {
        var oldr = li.text().replace(LogFilter.rightRegexp, '$1').replace(/\, /g, ' ');
        var newr = li.text().replace(LogFilter.rightRegexp, '$2').replace(/\, /g, ' ');
        var oldrl = oldr.split(' ');
        var newrl = newr.split(' ');
        for (var j = 0; j < oldrl.length; j++) {
          for (var k = 0; k < newrl.length; k++) {
            if (oldrl == newrl) {
              oldrl = newrl = '';
            }
          }
        }
        var remr = oldrl.join(' ');
        var addr = newrl.join(' ');
        switch(type) {
          case 0: var look = addr; break;
          case 1: var look = remr; break;
          case 2: var look = remr + ' ' + addr; break;
          case 3: var look = oldr + ' ' + newr; break;
        }
      } else {
        //Any other list of <li> objects
        var look = li.text();
      }
      var match = (look.search(regexp) != -1);
      var selected =  match ^ invert;
      if (highlight) {
        li.css('backgroundColor', selected ? '#ffff99' : '');
      } else {
        li.css('backgroundColor', '');
        if (!selected) {
          hidden = hidden.add(li);
        }
      }
    });
    lis.show();
    hidden.hide();
  }
});
LogFilter.init();

function queryString(p) {
  var re = RegExp('' + p + '=(*)');
  var matches;
  if (matches = re.exec(document.location)) {
    try { 
      return decodeURI(matches);
    } catch (e) {
    }
  }
  return null;
}