// phpBB User Stuff
// version 0.1
// 2006-02-26
// Copyright (c) 2006, xamm
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.  To install it, you need
// Greasemonkey 0.3 or later: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "phpBB User Stuff", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ChangeLog
// 2006-02-26 - 0.2 - Fixed issue if you cancelled changing a users name
// 2006-02-26 - 0.1 - Initial release
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name          phpBB User Stuff
// @description   Allows you to hides users' posts, edit users' names and store a small amount of information about each user.
// @namespace     http://www.otsegolectric.com/greasemonkey/
// @include       */viewtopic.php*
// ==/UserScript==

// Get stored hidden users from cookie
var hiddenUsers = [];
var userNotes = [];
var usersNew = [];
var usersOld = [];
var cookieNameNew = "phpBBUserNew";
var cookieNameOld = "phpBBUserOld";
var hideCookieName = "phpBBUserHide";
var userName;
var userNote;
var hiddenUser;

for (var i = 0; i < document.cookie.split('; ').length; i++) {
	var oneCookie = document.cookie.split('; ')[i].split('=');
	if (oneCookie[0] == hideCookieName) {
		hiddenUsers = oneCookie[1].split(', ');
		break;
	}
}

for (var i = 0; i < document.cookie.split('; ').length; i++) {
	var oneCookie = document.cookie.split('; ')[i].split('=');
	if(oneCookie[0] == cookieNameNew)
		usersNew = oneCookie[1].split(', ');
	else if(oneCookie[0] == cookieNameOld)
		usersOld = oneCookie[1].split(', ');
}

/*for(var i = 0; i < usersOld.length; i++){
	while(document.body.innerHTML.indexOf(usersOld[i]) != -1)
		document.body.innerHTML = document.body.innerHTML.replace(usersOld[i], usersNew[i]);
}*/

var editNotes = function(event) {
	var userNote = event.target.previousSibling.innerHTML.replace(/ /g, '');
	GM_setValue(userNote, prompt( "Edit user note for [" + userNote + "]:", userNotes[userNote] ) );
	window.location.reload(false);
};

// Add or remove a user from the cookie
var addRemoveUserRename = function(event) {
	// Parse current cookie
	for (var i = 0; i < document.cookie.split('; ').length; i++) {
		var oneCookie = document.cookie.split('; ')[i].split('=');
		if(oneCookie[0] == cookieNameNew)
			usersNew = oneCookie[1].split(', ');
		else if(oneCookie[0] == cookieNameOld)
			usersOld = oneCookie[1].split(', ');
	}
	userName = escape(event.target.innerHTML);
	notFound = true;
	for (var j = 0; j < usersNew.length; j++) {
		if (usersNew[j] == userName) {
			usersOld.splice(j, 1);
			usersNew.splice(j, 1);
			notFound = false;
		}
	}
	if (notFound){
		var userNew = escape(prompt('Enter the new name for ' + unescape(userName), unescape(userName)));
		if(userNew != "null"){
			usersNew.push(userNew);
			usersOld.push(userName);
		}
	}

	if (usersOld.length > 0) {
		var date = new Date();
		date.setTime(date.getTime() + 31536000000);
		var expires = '; expires=' + date.toGMTString();
		var valueOld = usersOld.join(', ');
		var valueNew = usersNew.join(', ');
		document.cookie = cookieNameOld + '=' + valueOld + expires + '; path=/';
		document.cookie = cookieNameNew + '=' + valueNew + expires + '; path=/';
	} else {
		document.cookie = cookieNameOld +  '=;expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/';
		document.cookie = cookieNameNew +  '=;expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/';
	}
	window.location.reload(false);
	event.preventDefault();
};

// Add or remove a user from the cookie
var addRemoveUserHide = function(event) {
	// Parse current cookie
	for(j = 0; j < document.cookie.split('; ').length; j++ ) {
		var oneCookie = document.cookie.split('; ')[j].split('=');
		if (oneCookie[0] == hideCookieName) {
			hiddenUsers = oneCookie[1].split(', ');
			break;
		}
	}
	var hiddenUser = escape(event.target.nextSibling.innerHTML)
	notFound = true;
	for (var j = 0; j < hiddenUsers.length; j++) {
		if (hiddenUsers[j] == hiddenUser) {
			hiddenUsers.splice(j, 1);
			notFound = false;
		}
	}
	if (notFound)
		hiddenUsers.push(hiddenUser);
	if (hiddenUsers.length > 0) {
		var date = new Date();
		date.setTime(date.getTime() + 31536000000);
		var expires = '; expires=' + date.toGMTString();
		var value = hiddenUsers.join(', ');
		document.cookie = hideCookieName + '=' + value + expires + '; path=/';
	} else {
		document.cookie = hideCookieName + '=;expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/';
	}
	window.location.reload(false);
	event.preventDefault();
};
// Toggle display of user's post
var togglePost = function(event) {
	var displayState = event.target.getAttribute('displaystate');
	if (displayState == 'none')
		displayState = '';
	else
		displayState = 'none';
	event.target.setAttribute('displaystate', displayState);

	containingRow = event.target.parentNode.parentNode;
	var innerTags = containingRow.getElementsByTagName('*');
	for (var i = 0; i < innerTags.length; i++) {
		var tagClass = innerTags[i].getAttribute('class');
		if (tagClass == 'postbody' || tagClass == 'postsig'
			|| tagClass == 'postdetails' || innerTags[i].tagName == 'TABLE')
			innerTags[i].style.display = displayState;
	}
	event.preventDefault();
};
// Toggle display of user's quote
var toggleQuote = function(event) {
	var displayState = event.target.getAttribute('displaystate');
	if (displayState == 'none')
		displayState = 'table-row';
	else
		displayState = 'none';
	event.target.setAttribute('displaystate', displayState);

	// Jump to parent row
	var containingRow = event.target.parentNode.parentNode.parentNode.parentNode.nextSibling;
	// Find containing row
	while (containingRow.nodeType != 1)
		containingRow = containingRow.nextSibling;
	containingRow.style.display = displayState;
	event.preventDefault();
};

// Find all the usernames in the page
var results = document.evaluate("//span[@class='name']/b|//span[@class='name']/strong", document, null,
	XPathResult.ANY_TYPE, null);
var resultNodes = [];
var aResult;
while (aResult = results.iterateNext()) {
	resultNodes.push(aResult);
	resultUser = aResult.innerHTML.replace(/ /g, '');
	userNotes[resultUser] = ( GM_getValue( resultUser, '' ) ); // JW
}

// Loop through every user post on the page
for (var i in resultNodes) {
	var containingRow = resultNodes[i].parentNode.parentNode.parentNode;
	// Format whitespace
	hiddenUser = escape(resultNodes[i].innerHTML);
	userNote = resultNodes[i].innerHTML.replace(/ /g, '');

	// Flag whether the user is in our hide list
	var notFound = true;
	for (var j = 0; j < hiddenUsers.length; j++) {
		if (hiddenUsers[j] == hiddenUser) {
			notFound = false;
		}
	}
	var renameFound = false;
	var newName;
	for (var j = 0; j < usersOld.length; j++) {
		if (usersOld[j] == hiddenUser) {
			renameFound = true;
			newName = unescape(usersNew[j]);
		}
	}

	// Add relevant event handlers to user's name and a toggler node
	var toggler = document.createElement('span');
	toggler.setAttribute('title', "click to add or remove this user from your hide list");
	toggler.appendChild(document.createTextNode('[X] '));
	toggler.style.fontSize = "7pt";
	toggler.style.cursor = 'pointer';
	toggler.addEventListener('click', addRemoveUserHide, true);

	var noteEdit = document.createElement('span');
	noteEdit.title = userNotes[userNote];
	noteEdit.appendChild(document.createTextNode(' [?]'));
	noteEdit.style.fontSize = "7pt";
	noteEdit.style.cursor = 'pointer';
	noteEdit.addEventListener('click', editNotes, true);

	resultNodes[i].title = 'click to rename this user';
	resultNodes[i].style.cursor = 'pointer';
	if(renameFound)
		resultNodes[i].innerHTML = newName
	resultNodes[i].addEventListener('click', addRemoveUserRename, true);

	resultNodes[i].parentNode.insertBefore(noteEdit, resultNodes[i].nextSibling);
	resultNodes[i].parentNode.insertBefore(toggler, resultNodes[i]);

	// If this user isn't in our hide list, skip to the next user
	if (notFound)
		continue;

	// Find the first element node (td) in the containing row
	var elem = containingRow.firstChild;
	while (elem.nodeType != 1)
		elem = elem.nextSibling;

	// Create a span to control toggling
	var span = document.createElement('span');
	span.appendChild(document.createTextNode('Toggle Display'));
	span.appendChild(document.createElement('br'));
	span.className = 'name';
	span.setAttribute('displaystate', 'none');
	span.style.cursor = 'pointer';
	span.addEventListener('click', togglePost, true);

	// Insert the span after the username and before the <br>
	elem.insertBefore(span, elem.firstChild.nextSibling.nextSibling);
	// Insert a <br> after the username and before the span
	elem.insertBefore(document.createElement('br'), elem.firstChild.nextSibling.nextSibling);

	var innerTags = containingRow.getElementsByTagName('*');
	for (var i = 0; i < innerTags.length; i++) {
		var tagClass = innerTags[i].getAttribute('class');
		if (tagClass == 'postbody' || tagClass == 'postsig'
			|| tagClass == 'postdetails' || innerTags[i].tagName == 'TABLE')
			innerTags[i].style.display = 'none';
	}
}

// Find all the usernames quoted in the page
var results = document.evaluate("//td[@class='quote']/parent::*/preceding-sibling::*/td/span/b|//td[@class='quote']/parent::*/preceding-sibling::*/td/span/strong", document, null,	XPathResult.ANY_TYPE, null);
var resultNodes = [];
var aResult;
while (aResult = results.iterateNext())
	resultNodes.push(aResult);

// Loop through every user quote on the page
for (var i in resultNodes) {
	var containingRow = resultNodes[i].parentNode.parentNode.parentNode.nextSibling;
	while (containingRow.nodeType != 1)
		containingRow = containingRow.nextSibling;

	// Find username
	var usermatch = resultNodes[i].innerHTML.match(/(.*) wrote:$/);
	if (usermatch)
		var hiddenUser = escape(usermatch[1]);
	else
		continue;

	// Flag whether the user is in our hide list
	var notFound = true;
	for (var j = 0; j < hiddenUsers.length; j++) {
		if (hiddenUsers[j] == hiddenUser) {
			notFound = false;
		}
	}

	for (var j = 0; j < usersOld.length; j++) {
		if (usersOld[j] == hiddenUser) {
			resultNodes[i].innerHTML = unescape(usersNew[j]) + " wrote:";
		}
	}

	// If this user isn't in our hide list, skip to the next user
	if (notFound)
		continue;

	// Create a span to control toggling
	var span = document.createElement('span');
	span.appendChild(document.createElement('br'));
	span.appendChild(document.createTextNode('Toggle Display'));
	span.className = 'gensmallbold';
	span.setAttribute('displaystate', 'none');
	span.style.cursor = 'pointer';
	span.setAttribute('onClick', 'toggleQuote(this)');

	resultNodes[i].appendChild(span);
	
	// Hide the quote
	containingRow.style.display = 'none';
}

var theScript = '';
theScript += 'function toggleQuote(event){';
theScript += '	var displayState = event.getAttribute(\'displaystate\');';
theScript += '	if (displayState == \'none\')';
theScript += '		displayState = \'table-row\';';
theScript += '	else';
theScript += '		displayState = \'none\';';
theScript += '	event.setAttribute(\'displaystate\', displayState);';
theScript += '	var containingRow = event.parentNode.parentNode.parentNode.parentNode.nextSibling;';
theScript += '	while (containingRow.nodeType != 1)';
theScript += '		containingRow = containingRow.nextSibling;';
theScript += '	containingRow.style.display = displayState;';
theScript += '}';

var theScriptObj=document.createElement('script');
theScriptObj.setAttribute('language','javascript');
theScriptObj.setAttribute('type','text/javascript');
theScriptObj.innerHTML = theScript;
document.getElementsByTagName('head')[0].appendChild(theScriptObj, document.getElementsByTagName('head')[0]);