// ==UserScript==
// @name		Tripcode breaker kot v2
// @description	Breaks weak tripcodes on 4chan.
// @include		https://kotchan.org/chat/*
// @grant		GM_xmlhttpRequest
// ==/UserScript==


function showTrip (e) {
	var tnode = document.evaluate("./text()", e.target, null, XPathResult.ANY_TYPE, null).iterateNext();
	if (tnode != null) tnode.nodeValue = e.target.getAttribute("trip");
}

function showPWD (e) {
	var tnode = document.evaluate("./text()", e.target, null, XPathResult.ANY_TYPE, null).iterateNext();
	if (tnode != null) tnode.nodeValue = e.target.getAttribute("pwd");
}

function setName (e) {
	var nameMatches = document.getElementsByName("chat_name");
	if ( nameMatches.length > 0 ){
		var namePath = "ancestor-or-self::output[@class='trip_code']/preceding-sibling::span[@class='chat_name']/descendant::text()";
		var namemode = document.evaluate(namePath, e.target, null, XPathResult.ANY_TYPE, null).iterateNext();
		var name = ( nameNode != null ) ? nameNode.nodeValue : "";
		for (var i = 0; i < name.length; i++) {
			if (name.charAt(i) == "\u202B" || name.charAt(i) == "\u202E") {
				name = name.substr(0, name.length - 1);
			} else {
				break;
			}
		}
		nameMatches[0].value = name + e.target.getAttribute("pwd");
	}
}

function lookUp (trips) {
	console.log("Looking up trips.");
	for (var i = 0; i < trips.snapshotLength; i++){
		var tripNode = trips.snapshotItem(i);
		var trip = tripNode.nodeValue;
		var parts = trip.match(/([^!]*)((\![^!]+)?)((\!\![^!]+)?)/);
		var pwd = parts[1];
		if (parts[2] != ""){
			if (parts[2] in brokenTrips) {
				pwd += brokenTrips[parts[2]];
			} else {
				pwd += parts[2];
			}
		}
		if (parts[4] != "") {
			if (parts[4] in brokenTrips) {
				if (parts[2] == "") pwd += "#";
				pwd += brokenTrips[parts[4]];
			} else {
				pwd += parts[4];
			}
		}
		if (pwd != trip) {
			cracked++;
			tripNode.nodeValue = pwd;
			tripNode.parentNode.setAttribute("trip", trip);
			tripNode.parentNode.setAttribute("pwd", pwd);
			tripNode.parentNode.addEventListener("mouseover", showTrip, false);
			tripNode.parentNode.addEventListener("mouseout", showPWD, false);
			tripNode.parentNode.addEventListener("click", setName, false);
		}
	}
	console.log("Found "+trips.snapshotLength+" trips, cracked "+cracked);
}



function getTrips () {
	if ( !localStorage.tripBreak ) {
		console.log("Requesting trips");
		GM_xmlhttpRequest({
			method: "GET",
			url: "http://m.uploadedit.com/bbtc/1560488240643.txt",
			onload: function (response) {
				var lines = response.responseText.split("\r\n");
				for (var i = 0; i < lines.length; i++) {
					var parts = lines[i].match(/(([^!]+)?)((\![^!]+)?)((\!\![^!]+)?)/);
					if (parts[3] != "") brokenTrips[parts[3]] = "#" + parts[1];
					if (parts[5] != "") brokenTrips[parts[5]] = "#" + parts[1];
					//console.log(brokenTrips.length)
				}
			}
		})
		lookUp(trips);
		localStorage.brokenTrips = JSON.stringify(brokenTrips);
	} else {
		console.log("Loading trips from localStorage");
		brokenTrips = JSON.parse(localStorage.brokenTrips);
		lookUp(trips);
	}
	console.log(brokenTrips.length,"after");
}

var tripPath;
var trips;
var cracked = 0;
var brokenTrips = [];

function load() {
	tripPath = "descendant::output[@class='trip_code']/descendant-or-self::*[text()!='']/text()";
	trips = document.evaluate(tripPath, document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
	console.log("Loading tripbreaker");
	getTrips();
	console.log("Trip breaker fully loaded");

}

window.onload = function() {setTimeout(function(){load();},8000)}