// ==UserScript==
// @name          Heise Trollex Version 0.32
// @namespace     http://diveintogreasemonkey.org/download/
// @description   Skript zum Entfernen von (rot markierten) Trollbeitręgen in den Heiseforen
// @include       http://www.heise.de/*foren/*
// ==/UserScript==

function increasetreshold(event)  {
	acttresh = GM_getValue("treshold", -50);
	GM_setValue("treshold", acttresh + 10);
	window.location.reload();
}

function decreasetreshold(event)  {
	acttresh = GM_getValue("treshold", -50);
	GM_setValue("treshold", acttresh - 10);
	window.location.reload();
}

function addtoignorelist(user) {
	iliststr = GM_getValue("ignorelist", "");
        iliststr = iliststr + "," + user;
        GM_setValue("ignorelist",iliststr);
        window.location.reload();
}


function removefromignorelist(user) {
	iliststr = GM_getValue("ignorelist", "");
        ilist = ignoreliststr.split(",")
        iliststrnew = "";
        for (i =  0; i < ilist.length; i++) {
        	if  ((ilist[i] != user) && (ilist[i] != "") && (ilist[i] != " ")) {
        		iliststrnew = iliststrnew + ilist[i] + ((i != ilist.length-1)? ",":"");
        	}
        }
           GM_log(iliststrnew);
        GM_setValue("ignorelist",iliststrnew);
        window.location.reload();
}

function inarray(arr, value) {
	for (var i = 0; i < arr.length; i++) {
		if (arr[i]==value) return true;
	}
	return false;

}

function factoryadd(v) {
	return function(event) {
		addtoignorelist(v);
		event.stopPropagation();
    		event.preventDefault();
	};
}

function factoryremove(v) {
	return function(event) {
		removefromignorelist(v);
		event.stopPropagation();
    		event.preventDefault();
	};
}



var trollvisbile = GM_getValue("trollvisbile",false);
var allImages, thisImage;
var treshold = GM_getValue("treshold", -50);
var ignoreliststr = GM_getValue("ignorelist", "");
var ignorelist = ignoreliststr.split(",");

var blocked = 0;

function switchvisibilty() {
	trollvisbile = GM_getValue("trollvisible", false);
	document.getElementById('trolltable').style.visibility = (!trollvisbile)? 'visible':'hidden';
	if (trollvisbile)  document.getElementById('trolllist').style.visibility = 'hidden';
	GM_setValue("trollvisible", !trollvisbile);
}

function switchvisibiltytl() {
	trollvisbile = GM_getValue("trolllistvisible", false);
	document.getElementById('trolllist').style.visibility = (!trollvisbile)? 'visible':'hidden';
	GM_setValue("trolllistvisible", !trollvisbile);
	document.getElementById('trolllist').style.visibility = true;
}


trolllist = document.createElement('ol');
trolllist.setAttribute('id','trolllist');

trolllist.appendChild(document.createTextNode(""));

for (i = 0; i < ignorelist.length; i++) {
	if (ignorelist[i] != "") {
		button1 = document.createElement('li');
		button1.addEventListener('click', factoryremove(ignorelist[i]), true);
		button1.innerHTML = "" + ignorelist[i];
		button1.setAttribute("style", "text-decoration:none; font-weight:normal; color: blue; cursor: hand; cursor: pointer;");
		trolllist.appendChild(button1);
	}
}

allImages = document.evaluate("//img[contains(@title,'Beitragsbewertung: ')]", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);

var trolltablecontainer = document.createElement('div');
var tablerows = document.createElement('table');
tablerows.setAttribute('class','forum_inhalt');

 //GM_setValue("ignorelist","");
/*
   from "Heise Forum Sweeper" http://phpfi.com/69565
*/

 var strIgnored = String.fromCharCode(8211, 8211, 8211);
 var allInhaltTables, forum_inhalt;
  allInhaltTables = document.evaluate(
    "//table[@class='forum_inhalt']",
    document,
    null,
    XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
    null);
  forum_inhalt = allInhaltTables.snapshotItem(0);

 var users = new Array();

  for (var i = 0; i < forum_inhalt.rows.length; i=(i+1)) {
    var row = forum_inhalt.rows.item(i);
    if (row.cells.item(4) != null){
    var cellUser = row.cells.item(4).firstChild;
      if (cellUser.nodeType == 3) {
        var username = cellUser.nodeValue;

	removeit = false;
        if (username.substr(0, 3) == strIgnored) {
           removeit = true;
        }
        if (inarray(ignorelist,  username)) {
           removeit = true;
        }
        if (removeit) {
           tablerows.appendChild(row);
    	   blocked++;

        }
          button = document.createElement('b');
          button.href = null;
          button.addEventListener('click', factoryadd(username), true);
	  button.innerHTML = " [i]";
	  button.setAttribute("style", "text-decoration:none;  font-weight:normal; color: blue; cursor: hand; cursor: pointer; ");
	  row.cells.item(4).appendChild(button);
      	if (removeit) i = i-1;
      }
      }
   }



for (var i = 0; i < allImages.snapshotLength; i++) {
    var tablerow, bewvalue;
    thisImage = allImages.snapshotItem(i);
    bewvalue = parseInt(thisImage.title.substr(19,4));
    if (bewvalue <= treshold) {
    	tablerow = thisImage.parentNode.parentNode.parentNode;
    	tablerows.appendChild(tablerow);
    	blocked++;
    }
}


trolltablecontainer.appendChild(tablerows);
trolltablecontainer.setAttribute('id','trolltable');
trolltablecontainer.setAttribute('style','visibility:hidden');

var untereZeil  = document.evaluate( "//table[@class='forum_aktion']", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
var untereZeile = untereZeil.snapshotItem(0);
var newElement = document.createElement('b');
newElement.setAttribute("style", "text-decoration:none; font-weight:bold; cursor: hand; cursor: pointer; ");
newElement.innerHTML = blocked + ' Beiträge geblockt.';
//newElement.onclick =  switchvisibilty;
newElement.addEventListener('click', switchvisibilty, true);
heiset = document.createTextNode(" Schwelle:  ");

container = document.createElement('div');
button1 = document.createElement('b');
//button1.onclick = increasetreshold;
button1.addEventListener('click', increasetreshold, true);
button1.innerHTML = '+';
button1.setAttribute("style", "font-family: courier;font-size: 16px;text-decoration:none; font-weight:bolder; color: blue; cursor: hand; cursor: pointer; ");

tresholdview = document.createTextNode(" [" + treshold + " %] ");

button2 = document.createElement('b');

//button2.onclick = decreasetreshold;
button2.addEventListener('click', decreasetreshold, true);

button2.innerHTML = "-";

button2.setAttribute("style", "font-family: courier; font-size: 16px;text-decoration:none; font-weight:bolder; color: blue; cursor: hand; cursor: pointer; ");

container.appendChild(heiset);
container.appendChild(button2);
container.appendChild(tresholdview);
container.appendChild(button1);


trollistbutton =  document.createElement('b');
trollistbutton.setAttribute("style", "text-decoration:none; font-weight:bold; cursor: hand; cursor: pointer; ");
trollistbutton.innerHTML = "Trolle entfernen :";

//trollistbutton.onclick =  switchvisibiltytl;
trollistbutton.addEventListener('click', switchvisibiltytl, true);

trolltablecontainer.appendChild(container);
trolltablecontainer.appendChild(trollistbutton);
trolltablecontainer.appendChild(trolllist);

untereZeile.parentNode.insertBefore(newElement,untereZeile.nextSilbing);
untereZeile.parentNode.insertBefore(trolltablecontainer,untereZeile.nextSilbing);

document.getElementById('trolltable').style.visibility= (GM_getValue("trollvisible",false))? 'visible':'hidden';
document.getElementById('trolllist').style.visibility= (GM_getValue("trolllistvisible",false) && GM_getValue("trollvisible",false))? 'visible':'hidden';