Calculate suggested resale prices (quantile, median, cluster) on TornW3B
// ==UserScript==
// @name Market Resale Helper TornW3B
// @namespace http://tampermonkey.net/
// @version 2025-08-26 v2
// @description Calculate suggested resale prices (quantile, median, cluster) on TornW3B
// @match *://weav3r.dev/item/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=weav3r.dev
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
console.log("✅ Market Helper v6 started");
// --- Config defaults ---
let BULK_QTY_MIN = 20;
let BULK_PCT_MIN = 0.10;
// --- Utils ---
const fmt = (v) => (v !== null && v !== undefined) ? v.toLocaleString() : "—";
const diffPct = (p, marketMin) =>
(p && marketMin) ? ((p - marketMin) / marketMin * 100).toFixed(1) + "%" : "—";
// --- Pricing methods ---
function calcQuantile(offers, fraction) {
offers.sort((a,b) => a.price - b.price);
const total = offers.reduce((s,o) => s + o.qty, 0);
let cumulative = 0;
const threshold = total * fraction;
for (let o of offers) {
cumulative += o.qty;
if (cumulative >= threshold) return o.price - 1;
}
return offers[offers.length-1].price;
}
function calcMedian(offers) {
offers.sort((a,b) => a.price - b.price);
const total = offers.reduce((s,o) => s + o.qty, 0);
const half = Math.floor(total / 2);
let cumulative = 0;
for (let o of offers) {
cumulative += o.qty;
if (cumulative >= half) return o.price;
}
return offers[Math.floor(offers.length/2)].price;
}
function calcCluster(offers) {
offers.sort((a,b) => a.price - b.price);
let bestPrice = offers[0].price;
let bestCount = 0;
for (let i = 0; i < offers.length; i++) {
const p = offers[i].price;
const upper = p * 1.05;
let count = 0;
for (let j = i; j < offers.length; j++) {
if (offers[j].price <= upper) count += offers[j].qty;
else break;
}
if (count > bestCount) {
bestCount = count;
bestPrice = p;
}
}
return bestPrice - 1;
}
function calcClusterCapped(offers, marketMin) {
let cluster = calcCluster(offers);
let cap = Math.round(marketMin * 1.5);
return Math.min(cluster, cap);
}
// --- Bulk detection ---
function detectBulkAnchor(offers, marketMin) {
const totalQty = offers.reduce((s,o) => s + o.qty, 0);
offers.sort((a,b) => a.price - b.price);
for (let i = 0; i < offers.length; i++) {
let bandQty = 0;
const p = offers[i].price;
const upper = p * 1.05;
for (let j = i; j < offers.length; j++) {
if (offers[j].price <= upper) bandQty += offers[j].qty;
else break;
}
if (bandQty >= BULK_QTY_MIN || bandQty >= totalQty * BULK_PCT_MIN) {
if (p <= marketMin * 1.5) {
return {price: p, qty: bandQty};
}
}
}
return null;
}
// --- Parse offers ---
function parseOffers() {
let offers = [];
let inferredMarkets = [];
// grab all grid rows
let rows = document.querySelectorAll("div.grid");
rows.forEach((row, idx) => {
let cols = row.querySelectorAll(":scope > div");
if (cols.length === 5) {
// skip header row (first one with "Player/Qty/Price")
if (idx === 0) return;
// qty
let qty = parseInt(cols[1].innerText.replace(/[^0-9]/g, ""), 10);
// price
let priceSpan = cols[2].querySelector("span");
let priceText = priceSpan ? priceSpan.textContent.trim() : "0";
let price = parseInt(priceText.replace(/[^0-9]/g, ""), 10);
// vsMarket
let vsSpan = cols[3].querySelector("span");
let vsText = vsSpan ? vsSpan.textContent.trim() : "0"; // "-12%" or "+25%"
let vsMarket = parseFloat(vsText.replace("%","").replace("+","")) || 0;
if (!isNaN(price) && !isNaN(qty)) {
let inferred = price / (1 + vsMarket/100);
inferredMarkets.push(inferred);
console.log("Row parsed:", {
qty, price, rawVs: vsText, vsMarket, inferredMarket: inferred.toFixed(2)
});
offers.push({price, qty, vsMarket});
}
}
});
// median inferred market
inferredMarkets.sort((a,b) => a-b);
let marketMin = inferredMarkets.length > 0
? Math.round(inferredMarkets[Math.floor(inferredMarkets.length/2)])
: null;
console.log("✅ Parsed offers:", offers.length, "| MarketMin:", marketMin);
return {offers, marketMin};
}
// --- Trim dataset ---
function trimOffers(offers) {
offers.sort((a,b) => a.price - b.price);
return offers.filter(o => o.vsMarket <= 200); // remove >+100% vs market
}
// --- Auto-scroll ---
function autoScrollTable(callback) {
let container = document.querySelector("div.overflow-y-auto");
if (!container) { callback(); return; }
let lastCount = 0, tries = 0;
const interval = setInterval(() => {
container.scrollBy(0, 800);
let rows = document.querySelectorAll("div.grid");
let dataRows = Array.from(rows).filter(r => r.querySelectorAll(":scope > div").length === 5);
if (dataRows.length > lastCount) { lastCount = dataRows.length; tries = 0; }
else tries++;
if (tries > 5) {
clearInterval(interval);
container.scrollTo(0, 0);
console.log("✅ Auto-scroll finished with", dataRows.length, "rows");
callback();
}
}, 500);
}
// --- Show results ---
function injectResult() {
let parsed = parseOffers();
let offers = parsed.offers;
let marketMin = parsed.marketMin;
if (offers.length === 0 || !marketMin) return;
let relevant = trimOffers(offers);
console.log("📊 Relevant offers:", relevant.length, "of", offers.length);
let fast = calcQuantile(relevant, 0.1);
let medium = calcQuantile(relevant, 0.3);
let slow = calcQuantile(relevant, 0.6);
let median = calcMedian(relevant);
let cluster = calcCluster(relevant);
let capped = calcClusterCapped(relevant, marketMin);
let bulk = detectBulkAnchor(relevant, marketMin);
let final = bulk ? bulk.price : capped;
let avgPrice = Math.round(
relevant.reduce((s,o) => s + o.price * o.qty, 0) /
relevant.reduce((s,o) => s + o.qty, 0)
);
let box = document.getElementById("market-helper-box");
if (!box) {
box = document.createElement("div");
box.id = "market-helper-box";
box.style.cssText = `
padding:10px;margin:10px 0;
border:2px solid #4caf50;background:#e8f5e9;
font-size:14px;border-radius:8px;
`;
let container = document.querySelector("div.overflow-x-auto");
if (container) container.prepend(box);
else document.body.prepend(box);
// controls
let controls = document.createElement("div");
controls.style.margin = "5px 0";
controls.innerHTML = `
Bulk min qty: <input id="bulkQtyInput" type="number" value="${BULK_QTY_MIN}" style="width:60px">
Bulk min %: <input id="bulkPctInput" type="number" value="${BULK_PCT_MIN*100}" style="width:60px">%
`;
box.before(controls);
document.getElementById("bulkQtyInput").addEventListener("change", e=>{
BULK_QTY_MIN = parseInt(e.target.value,10) || 20;
injectResult();
});
document.getElementById("bulkPctInput").addEventListener("change", e=>{
BULK_PCT_MIN = (parseFloat(e.target.value)||10)/100;
injectResult();
});
}
box.innerHTML = `
<b>💡 Smart Resale Analysis (${relevant.length}/${offers.length} offers):</b><br>
⭐ Final Recommended: <b style="color:darkgreen;font-size:16px">${fmt(final)}</b>
(${diffPct(final, marketMin)} vs market)<br>
Bulk Anchor: <b>${bulk ? fmt(bulk.price)+" ("+bulk.qty+" items)" : "—"}</b><br>
<hr>
Fast (10%): <b>${fmt(fast)}</b> (${diffPct(fast, marketMin)})<br>
Medium (30%): <b>${fmt(medium)}</b> (${diffPct(medium, marketMin)})<br>
Slow (60%): <b>${fmt(slow)}</b> (${diffPct(slow, marketMin)})<br>
Median: <b>${fmt(median)}</b> (${diffPct(median, marketMin)})<br>
Cluster: <b>${fmt(cluster)}</b> (${diffPct(cluster, marketMin)})<br>
Cluster+Cap: <b>${fmt(capped)}</b> (${diffPct(capped, marketMin)})<br>
<hr>
Market min (from vsMarket): <b>${fmt(marketMin)}</b><br>
Average (trimmed): <b>${fmt(avgPrice)}</b>
`;
}
// --- Runner ---
function runFullCycle() {
autoScrollTable(() => injectResult());
}
setTimeout(runFullCycle, 20000);
setInterval(runFullCycle, 300000);
})();