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HV Monster PL Planner

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anonymous created 3 days ago Expires in 3 months 103.6 KB syntax: javascript

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// ==UserScript==
// @name         HV Monster PL Planner
// @namespace    https://hentaiverse.org/
// @version      0.2.5
// @description  Standalone Monster Lab batch PL planner, upgrader and crystal buyer with HV Utils compatibility.
// @author       KirisameReiko
// @include      /^https:\/\/hentaiverse\.org\/\?s=Bazaar&ss=ml(?:&.*)?$/
// @include      /^https:\/\/alt\.hentaiverse\.org\/\?s=Bazaar&ss=ml(?:&.*)?$/
// @grant        GM_addStyle
// @grant        GM_getValue
// @grant        GM_setValue
// @run-at       document-end
// ==/UserScript==

(function () {
  'use strict';

const query = Object.fromEntries(new URLSearchParams(location.search));
  if (
    location.protocol !== 'https:' ||
    !['hentaiverse.org', 'alt.hentaiverse.org'].includes(location.hostname) ||
    location.pathname !== '/' ||
    query.s !== 'Bazaar' ||
    query.ss !== 'ml'
  ) return;

const STORE_KEY = 'hv_exact_pl_planner_v1';
  const EPS = 1e-9;
  const PL_SCALE = 2;
  const PRIMARY_COST_BASE = 50;
  const PRIMARY_COST_RATE = 1.555079154;
  const ELEMENTAL_COST_BASE = 10;
  const ELEMENTAL_COST_RATE = 1.26485522;
  const REQUEST_DELAY_MS = 300;
  const DIRECT_BUY_RETRY_DELAY_MS = 5000;
  const DIRECT_BUY_MAX_RETRIES = 3;
  const MARKET_DETAIL_CONCURRENCY = 6;

const primary = ['STR', 'DEX', 'AGI', 'END', 'INT', 'WIS'];
  const elemental = ['FIRE', 'COLD', 'ELEC', 'WIND', 'HOLY', 'DARK'];
  const all = [...primary, ...elemental];
  const displayElemental = ['WIND', 'ELEC', 'FIRE', 'COLD', 'DARK', 'HOLY'];
  const displayAll = [...primary, ...displayElemental];
  const primarySet = new Set(primary);
  // Add new Easter eggs here, one string per line.
  const easterEggMessages = [
    'Isekaijoucho',
    '🍜',
    '⑨',
    'Dokidoki Wakuwaku',
    'wawawaa',
    '( ・_ゝ・)',
    'Rina Hidaka',
    'How high can borrowed wings really fly?',
    'Aizawa Nachu',
    'Soyokaze Ame',
    'Otherside Picnic',
  ];
  const languageOptions = [
    ['en', 'English'],
    ['zh-CN', '简体中文'],
  ];
  const languageValues = languageOptions.map(([value]) => value);

const crystalByAttr = {
    STR: 'Crystal of Vigor',
    DEX: 'Crystal of Finesse',
    AGI: 'Crystal of Swiftness',
    END: 'Crystal of Fortitude',
    INT: 'Crystal of Cunning',
    WIS: 'Crystal of Knowledge',

FIRE: 'Crystal of Flames',
    COLD: 'Crystal of Frost',
    ELEC: 'Crystal of Lightning',
    WIND: 'Crystal of Tempest',
    HOLY: 'Crystal of Devotion',
    DARK: 'Crystal of Corruption',
  };

const upgradeQueryByAttr = {
    STR: 'pa_str',
    DEX: 'pa_dex',
    AGI: 'pa_agi',
    END: 'pa_end',
    INT: 'pa_int',
    WIS: 'pa_wis',

FIRE: 'er_fire',
    COLD: 'er_cold',
    ELEC: 'er_elec',
    WIND: 'er_wind',
    HOLY: 'er_holy',
    DARK: 'er_dark',
  };

const crystalNames = all.map((a) => crystalByAttr[a]);
  const attrByCrystal = Object.fromEntries(all.map((attr) => [crystalByAttr[attr], attr]));
  const priceSourceValues = ['ask', 'bid', 'day', 'week', 'month', 'year', 'hvut'];
  const marketPriceSources = ['ask', 'bid', 'day', 'week', 'month', 'year'];

const crystalNameAliases = new Map();
  all.forEach((attr) => {
    const canonical = crystalByAttr[attr];
    [canonical, translations.en.crystal[attr], translations['zh-CN'].crystal[attr]]
      .forEach((name) => crystalNameAliases.set(name, canonical));
  });

const defaultPrice = {
    STR: 2.18,
    DEX: 1.52,
    AGI: 1.23,
    END: 1.95,
    INT: 1.25,
    WIS: 1.23,

FIRE: 1.11,
    COLD: 1.09,
    ELEC: 1.11,
    WIND: 1.11,
    HOLY: 1.09,
    DARK: 1.10,
  };

function $(q, d = document) {
    return d.querySelector(q);
  }

function $all(q, d = document) {
    return Array.from(d.querySelectorAll(q));
  }

function randomEasterEgg(current = '') {
    const candidates = easterEggMessages.filter((message) => message !== current);
    const pool = candidates.length ? candidates : easterEggMessages;
    return pool[Math.floor(Math.random() * pool.length)] || '';
  }

function htmlToDoc(html) {
    const doc = document.implementation.createHTMLDocument('');
    doc.documentElement.innerHTML = html;
    return doc;
  }

function elt(tag, attrs = {}, children = []) {
    const e = document.createElement(tag);

Object.entries(attrs || {}).forEach(([k, v]) => {
      if (v === undefined || v === null) return;

if (k === 'class') {
        e.className = v;
      } else if (k === 'style') {
        e.style.cssText = v;
      } else if (k === 'dataset') {
        Object.assign(e.dataset, v);
      } else if (k === 'text') {
        e.textContent = v;
      } else if (k in e) {
        e[k] = v;
      } else {
        e.setAttribute(k, v);
      }
    });

if (!Array.isArray(children)) children = [children];

children.forEach((c) => {
      if (c === null || c === undefined) return;
      e.appendChild(
        typeof c === 'string' || typeof c === 'number'
          ? document.createTextNode(String(c))
          : c
      );
    });

return e;
  }

function parseNum(text) {
    const m = String(text || '').replace(/,/g, '').match(/-?\d+(?:\.\d+)?/);
    return m ? Number(m[0]) : NaN;
  }

function positiveNumber(value) {
    const n = Number(value);
    return Number.isFinite(n) && n > 0 ? n : 0;
  }

function clampInt(value, min, max) {
    const n = parseInt(value, 10);
    return Number.isFinite(n) ? Math.max(min, Math.min(max, n)) : min;
  }

function gmGet(key, fallback) {
    try {
      const v = typeof GM_getValue === 'function'
        ? GM_getValue(key, null)
        : localStorage.getItem(key);

return parseStoredJson(v, fallback);
    } catch (e) {
      return fallback;
    }
  }

function isPlainObject(value) {
    return value && typeof value === 'object' && !Array.isArray(value);
  }

function normalizeLanguage(language) {
    return languageValues.includes(language) ? language : 'en';
  }

function readTranslation(path, language = state.language) {
    const parts = path.split('.');
    let value = translations[normalizeLanguage(language)];

for (const part of parts) {
      value = value?.[part];
    }

if (value !== undefined) return value;

value = translations.en;
    for (const part of parts) {
      value = value?.[part];
    }

return value ?? path;
  }

function t(path, params = {}) {
    const value = readTranslation(path);
    return typeof value === 'function' ? value(params) : value;
  }

function attrLabel(attr) {
    return t(`attr.${attr}`);
  }

function crystalLabel(crystalOrAttr) {
    const attr = crystalByAttr[crystalOrAttr] ? crystalOrAttr : attrByCrystal[crystalOrAttr];
    return attr ? t(`crystal.${attr}`) : String(crystalOrAttr || '');
  }

function canonicalCrystalName(name) {
    return crystalNameAliases.get(String(name || '').trim()) || '';
  }

function priceSourceLabel(value) {
    return t(`priceSource.${value}`);
  }

function joinList(values) {
    return values.join(t('listSeparator'));
  }

function readHvutPriceStore() {
    try {
      const prices = parseStoredJson(localStorage.getItem('hvut_prices'));
      if (isPlainObject(prices)) return prices;
    } catch (e) {
      // fall through to this script's GM storage
    }

try {
      if (typeof GM_getValue === 'function') {
        const prices = parseStoredJson(GM_getValue('hvut_prices', null));
        if (isPlainObject(prices)) return prices;
      }
    } catch (e) {
      // ignore invalid external storage
    }

return {};
  }

function writeHvutPrices(pricePatch) {
    const prices = Object.assign({}, readHvutPriceStore(), pricePatch);

try {
      if (typeof GM_setValue === 'function') {
        GM_setValue('hvut_prices', prices);
      }
    } catch (e) {
      console.warn('[PL Planner] HV Utils GM price save failed:', e);
    }

try {
      localStorage.setItem('hvut_prices', JSON.stringify(prices));
    } catch (e) {
      console.warn('[PL Planner] HV Utils localStorage price save failed:', e);
    }
  }

async function fetchText(url, data = null) {
    const full = new URL(url, location.origin).href;
    const response = await fetch(full, {
      method: data ? 'POST' : 'GET',
      body: data || undefined,
      credentials: 'same-origin',
      headers: data ? { 'Content-Type': 'application/x-www-form-urlencoded' } : undefined,
      redirect: 'follow',
      cache: 'no-store',
    });
    const text = await response.text();
    if (!response.ok) throw new Error(`${response.status} ${response.statusText}: ${full}`);
    if (text === 'state lock limiter in effect') throw new Error(text);
    return text;
  }

function defaultLevels() {
    return Object.fromEntries(all.map((a) => [a, 0]));
  }

function normalizeMonsterLevels(levels) {
    if (!isPlainObject(levels) || all.some((a) => !Number.isFinite(Number(levels[a])))) return null;
    return Object.fromEntries(all.map((a) => [a, clampInt(levels[a], 0, maxLevel(a))]));
  }

function normalizeAttrPrices(value) {
    const source = isPlainObject(value) ? value : {};
    return Object.fromEntries(all.map((attr) => [
      attr,
      positiveNumber(source[attr]) || defaultPrice[attr],
    ]));
  }

state.prices = normalizeAttrPrices(state.prices);

const storedPriceCache = isPlainObject(state.priceCache) ? state.priceCache : {};
  state.priceCache = {};

state.levels = normalizeMonsterLevels(state.levels) || defaultLevels();

state.orderUnitPrices = normalizeAttrPrices(state.orderUnitPrices);

if (!priceSourceValues.includes(state.priceSource)) {
    state.priceSource = 'ask';
  }

if (!priceSourceValues.includes(state.orderPriceSource)) {
    state.orderPriceSource = 'bid';
  }

if (!Array.isArray(state.selectedMonsterSlots)) {
    state.selectedMonsterSlots = [];
  }

state.selectedMonsterSlots = Array.from(new Set(
    state.selectedMonsterSlots.map(String).filter((slot) => /^\d+$/.test(slot))
  ));

state.language = normalizeLanguage(state.language);

const hvutSavedPrices = readHvutPriceStore();

for (const a of all) {
    const crystal = crystalByAttr[a];
    const storedCache = isPlainObject(storedPriceCache[crystal]) ? storedPriceCache[crystal] : {};
    const cached = {};
    state.priceCache[crystal] = cached;
    marketPriceSources.forEach((source) => {
      const value = positiveNumber(storedCache[source]);
      if (value) cached[source] = value;
    });
    cached.hvut = positiveNumber(storedCache.hvut) || positiveNumber(hvutSavedPrices[crystal]) || undefined;
    cached[state.priceSource] = positiveNumber(cached[state.priceSource]) || state.prices[a];
    cached.batchSize = Math.floor(positiveNumber(storedCache.batchSize)) || undefined;

state.levels[a] = clampInt(state.levels[a], 0, maxLevel(a));
  }

const runtime = {
    monsterList: [],
    monsters: new Map(Object.entries(state.monsterCache)),
    marketData: Object.fromEntries(crystalNames.map((name) => [name, Object.assign({}, state.priceCache[name])])),
    inventoryLoaded: false,
    orderBooksLoaded: false,
    lastPlan: null,
    busy: false,
    calculationTimer: null,
    calculationPending: false,
  };

const initialCachedMonster = runtime.monsters.get(String(state.lastMonsterSlot || state.selectedMonsterSlots[0] || ''));
  if (initialCachedMonster) state.levels = Object.assign({}, initialCachedMonster.levels);

function saveState() {
    gmSet(STORE_KEY, state);
  }

function isPrimary(a) {
    return primarySet.has(a);
  }

function maxLevel(a) {
    return isPrimary(a) ? 25 : 50;
  }

function primaryTotalPL(n) {
    return n * (6 + (n - 1) * 0.5) / 2;
  }

function elementalTotalPL(n) {
    const t = Math.floor(n / 10);
    const r = n % 10;
    return (t + 1) * (t * 5 + r);
  }

function deltaPL(a, n) {
    return isPrimary(a) ? 3 + n * 0.5 : Math.floor(1 + n * 0.1);
  }

function crystalCost(a, n) {
    const primaryAttr = isPrimary(a);
    const base = primaryAttr ? PRIMARY_COST_BASE : ELEMENTAL_COST_BASE;
    const rate = primaryAttr ? PRIMARY_COST_RATE : ELEMENTAL_COST_RATE;
    return Math.round(base * Math.pow(rate, n));
  }

function totalPL(levels) {
    let pl = 0;

primary.forEach((a) => {
      pl += primaryTotalPL(levels[a] || 0);
    });

elemental.forEach((a) => {
      pl += elementalTotalPL(levels[a] || 0);
    });

return pl;
  }

const maxPL = primary.length * primaryTotalPL(25) + elemental.length * elementalTotalPL(50);

function formatPL(v) {
    return Math.abs(v - Math.round(v)) < EPS
      ? String(Math.round(v))
      : v.toFixed(2).replace(/\.?0+$/, '');
  }

function formatMoney(v) {
    if (!Number.isFinite(v)) return '-';
    if (v >= 1000000) return (v / 1000000).toFixed(3) + ' MC';
    if (v >= 1000) return (v / 1000).toFixed(3) + ' KC';
    return v.toFixed(2) + ' C';
  }

function buildOptions(attr, startLevel, targetW) {
    const opts = [{
      k: 0,
      w: 0,
      cost: 0,
    }];

let accW = 0;
    let accCrystals = 0;
    let accCost = 0;

for (let n = startLevel; n < maxLevel(attr); n++) {
      const dpl = deltaPL(attr, n);
      const w = Math.round(dpl * PL_SCALE);
      const crystals = crystalCost(attr, n);
      const c = crystals * Number(state.prices[attr] || defaultPrice[attr]);

accW += w;
      accCrystals += crystals;
      accCost += c;

if (accW > targetW) break;

opts.push({
        attr,
        k: n - startLevel + 1,
        w: accW,
        crystals: accCrystals,
        cost: accCost,
      });
    }

return opts;
  }

function solveExact(startLevels, target) {
    const currentPL = totalPL(startLevels);
    const effectiveTarget = Math.max(target, currentPL);

if (effectiveTarget > maxPL + EPS) {
      return {
        ok: false,
        message: t('errorTargetOverMax', { max: formatPL(maxPL) }),
      };
    }

const need = effectiveTarget - currentPL;
    const needWFloat = need * PL_SCALE;
    const needW = Math.round(needWFloat);

if (Math.abs(needWFloat - needW) > 1e-7) {
      return {
        ok: false,
        message: t('errorTargetUnit'),
      };
    }

let dp = new Array(needW + 1).fill(Infinity);
    dp[0] = 0;

const parents = [];

for (let gi = 0; gi < all.length; gi++) {
      const attr = all[gi];
      const opts = buildOptions(attr, startLevels[attr], needW);

const ndp = new Array(needW + 1).fill(Infinity);
      const parent = new Array(needW + 1).fill(null);

for (let j = 0; j <= needW; j++) {
        if (!Number.isFinite(dp[j])) continue;

for (const opt of opts) {
          const nj = j + opt.w;
          if (nj > needW) continue;

const candidate = dp[j] + opt.cost;

if (candidate + EPS < ndp[nj]) {
            ndp[nj] = candidate;
            parent[nj] = { prev: j, opt };
          }
        }
      }

dp = ndp;
      parents.push(parent);
    }

if (!Number.isFinite(dp[needW])) {
      return {
        ok: false,
        message: t('errorTargetUnreachable'),
      };
    }

const chosen = [];
    let cur = needW;

for (let gi = all.length - 1; gi >= 0; gi--) {
      const p = parents[gi][cur];

if (!p) {
        return {
          ok: false,
          message: t('errorCalculationPath'),
        };
      }

if (p.opt.k > 0) chosen.push(p.opt);
      cur = p.prev;
    }

const finalLevels = Object.assign({}, startLevels);
    const agg = Object.fromEntries(all.map((attr) => [attr, {
      from: startLevels[attr],
      to: startLevels[attr],
      k: 0,
      crystals: 0,
      cost: 0,
    }]));
    let totalCost = 0;

chosen.forEach((opt) => {
      finalLevels[opt.attr] += opt.k;
      const item = agg[opt.attr];
      item.to += opt.k;
      item.k += opt.k;
      item.crystals += opt.crystals;
      item.cost += opt.cost;
      totalCost += opt.cost;
    });

return {
      ok: true,
      currentPL,
      targetPL: effectiveTarget,
      finalLevels,
      agg,
      totalCost,
    };
  }

function readInputs({ save = true } = {}) {
    all.forEach((a) => {
      const orderPrice = $(`#hvmepp-order-price-${a}`);

if (orderPrice) {
        const crystal = crystalByAttr[a];
        const batchSize = Math.floor(positiveNumber(runtime.marketData[crystal]?.batchSize));
        const batchPrice = Math.max(1, Math.round(positiveNumber(orderPrice.value)));
        if (batchSize && batchPrice) {
          state.orderUnitPrices[a] = batchPrice / batchSize;
          orderPrice.value = batchPrice;
        }
      }
    });

const target = $('#hvmepp-target');
    if (target) state.targetPL = parseFloat(target.value) || 0;

const source = $('#hvmepp-source');
    if (source) state.priceSource = source.value;

const orderSource = $('#hvmepp-order-source');
    if (orderSource) state.orderPriceSource = orderSource.value;

if (save) saveState();
  }

function setLevels(levels, { save = true } = {}) {
    all.forEach((a) => {
      state.levels[a] = clampInt(levels[a], 0, maxLevel(a));
    });

updateCurrentPL({ save: false });
    if (save) saveState();
  }

function updateCurrentPL({ save = true } = {}) {
    readInputs({ save });

const current = totalPL(state.levels);
    const need = (Number(state.targetPL) || 0) - current;
    const node = $('#hvmepp-live');

if (node) {
      node.replaceChildren(
        `${t('labelCurrentPL')}: `, elt('b', { text: formatPL(current) }),
        `  ${t('labelTargetPL')}: `, elt('b', { text: formatPL(state.targetPL || 0) }),
        `  ${t('labelNeedPL')}: `, elt('b', { text: formatPL(need) }),
        `  ${t('labelMaxPL')}: `, elt('b', { text: formatPL(maxPL) })
      );
    }
  }

function parseMonsterLevelsFromDoc(doc) {
    const stats = $all('#monsterstats_top td:nth-child(2)', doc)
      .map((td) => parseInt(td.textContent, 10))
      .filter((n) => Number.isFinite(n));

if (stats.length < 12) return null;

return Object.fromEntries(all.map((a, i) => [a, stats[i]]));
  }

function extractSlotFromMonsterRow(row) {
    const candidates = [
      row.getAttribute('onclick') || '',
      ...$all('a[href]', row).map((a) => a.getAttribute('href') || ''),
    ];

for (const text of candidates) {
      const slot = text.match(/[?&]slot=(\d+)/)?.[1];
      if (slot) return slot;
    }

return '';
  }

function parseMonsterName(row, slot) {
    const explicit = row.querySelector('[data-name], .hvmepp-monster-name')?.textContent?.trim();
    if (explicit) return explicit;

const cells = Array.from(row.children);
    const originalName = cells[1]?.textContent?.trim();
    if (originalName) return originalName;

const text = row.textContent.replace(/\s+/g, ' ').trim();
    const withoutPL = text.replace(/\bPL\s*\d+\b/i, '').trim();
    return withoutPL || t('monsterFallback', { slot });
  }

function parseMonsterPL(row) {
    const text = row.textContent.replace(/\s+/g, ' ');
    const fromText = text.match(/\bPL\s*(\d+)/i)?.[1];
    if (fromText) return parseInt(fromText, 10);

const structuredPL = parseNum(row.children[2]?.textContent);
    if (Number.isFinite(structuredPL)) return Math.floor(structuredPL);

const originalPL = Array.from(row.children).slice(2)
      .map((child) => child.textContent || '')
      .map((text) => text.match(/^\s*(?:PL\s*)?(\d{1,4})\s*$/i)?.[1])
      .find(Boolean);

return originalPL ? parseInt(originalPL, 10) : 0;
  }

function parseMonsterList() {
    return $all('#slot_pane > div').map((div) => {
      const onclick = div.getAttribute('onclick') || '';
      if (onclick.includes('&create=new')) return null;

const index = extractSlotFromMonsterRow(div);
      if (!index) return null;

return {
        index,
        name: parseMonsterName(div, index),
        pl: parseMonsterPL(div),
      };
    }).filter(Boolean);
  }

async function fetchMonsterLevels(slot) {
    const html = await fetchText(`?s=Bazaar&ss=ml&slot=${encodeURIComponent(slot)}`);
    const doc = htmlToDoc(html);
    const levels = parseMonsterLevelsFromDoc(doc);

if (!levels) {
      throw new Error(t('errorParseMonster'));
    }

return levels;
  }

function getMonsterMeta(slot) {
    const key = String(slot);
    return runtime.monsterList.find((monster) => String(monster.index) === key) || {
      name: t('monsterFallback', { slot: key }),
    };
  }

function cacheMonsterRecord(record, { save = true } = {}) {
    const slot = String(record?.slot || '');
    const levels = normalizeMonsterLevels(record?.levels);
    if (!/^\d+$/.test(slot) || !levels) return null;

const meta = getMonsterMeta(slot);
    const cached = {
      slot,
      name: String(record.name || meta.name || t('monsterFallback', { slot })),
      levels,
    };
    state.monsterCache[slot] = cached;
    runtime.monsters.set(slot, cached);
    if (save) saveState();
    return cached;
  }

function getSelectedMonsterSlots() {
    const checkboxes = $all('.hvmepp-monster-check');
    if (checkboxes.length) {
      return checkboxes.filter((checkbox) => checkbox.checked).map((checkbox) => String(checkbox.value));
    }

if (query.slot) return [String(query.slot)];
    return state.selectedMonsterSlots.slice();
  }

function clearCurrentPlan() {
    runtime.lastPlan = null;
    const box = $('#hvmepp-result');
    if (box) replacePlanContent(box);
  }

function invalidateCurrentPlan() {
    runtime.lastPlan = null;
    const box = $('#hvmepp-result');
    if (!box) return;
    box.setAttribute('aria-busy', 'true');
    $all('button, input, select', box).forEach((control) => {
      control.disabled = true;
    });
  }

function clearScheduledCalculation() {
    if (runtime.calculationTimer !== null) clearTimeout(runtime.calculationTimer);
    runtime.calculationTimer = null;
    runtime.calculationPending = false;
  }

function syncMonsterSelection() {
    if (runtime.busy) {
      const selected = new Set(state.selectedMonsterSlots.map(String));
      $all('.hvmepp-monster-check').forEach((checkbox) => {
        checkbox.checked = selected.has(String(checkbox.value));
      });
      runtime.calculationPending = true;
      return;
    }

state.selectedMonsterSlots = getSelectedMonsterSlots();
    if (state.selectedMonsterSlots.length) {
      state.lastMonsterSlot = state.selectedMonsterSlots[0];
      const loaded = runtime.monsters.get(state.lastMonsterSlot);
      setLevels(loaded?.levels || defaultLevels(), { save: false });
    } else {
      state.lastMonsterSlot = '';
      setLevels(defaultLevels(), { save: false });
    }
    refreshMonsterSelectionSummary();
    if (state.selectedMonsterSlots.length) scheduleCalculation();
    else calculate();
  }

function refreshMonsterSelectionSummary() {
    const node = $('#hvmepp-selection-summary');
    if (!node) return;

async function mapLimit(values, limit, worker) {
    const items = Array.from(values);
    const results = new Array(items.length);
    let nextIndex = 0;

async function run() {
      while (nextIndex < items.length) {
        const index = nextIndex++;
        results[index] = await worker(items[index], index);
      }
    }

await Promise.all(Array.from({ length: Math.min(limit, items.length) }, run));
    return results;
  }

async function loadSelectedMonsters() {
    const slots = getSelectedMonsterSlots();
    if (!slots.length) throw new Error(t('errorNoMonsterSelection'));

state.selectedMonsterSlots = slots;
    state.lastMonsterSlot = slots[0];
    saveState();

if (records[0]?.levels) setLevels(records[0].levels, { save: false });
    calculate();
    setStatus(t('statusLoadedMonsters', { total: records.length }));
    return records;
  }

function readCurrentMonsterIfAny({ recalculate = true } = {}) {
    const levels = parseMonsterLevelsFromDoc(document);
    if (!levels) return false;

setLevels(levels, { save: false });

saveState();
    refreshMonsterSelectionSummary();
    if (recalculate) calculate();
    setStatus(t('statusLoadedCurrentMonster'));

return true;
  }

function parseMarketRows(doc, result) {
    const table = $('#market_itemlist table', doc);
    if (!table) return;

const headers = Array.from(table.rows[0]?.cells || [])
      .map((cell) => cell.textContent.trim().replace(/\s+/g, ' '));
    const findCol = (...names) => headers.findIndex((header) => names.includes(header));
    const nameCol = Math.max(0, findCol('Item', '物品'));
    const stockCol = findCol('Your Stock', '你的库存');
    const bidCol = findCol('Market Bid', '市场买价');
    const askCol = findCol('Market Ask', '市场卖价');

Array.from(table.rows).forEach((tr, i) => {
      if (i === 0 || !tr.cells || tr.cells.length < 2) return;

const name = canonicalCrystalName(tr.cells[nameCol]?.textContent);
      if (!name) return;

const onclick = tr.getAttribute('onclick') || '';
      const href = tr.querySelector('a[href*="itemid="]')?.getAttribute('href') || '';
      const itemid = (onclick + ' ' + href).match(/itemid=(\d+)/)?.[1];
      const stock = stockCol < 0 ? NaN : parseNum(tr.cells[stockCol]?.textContent);
      const bid = bidCol < 0 ? NaN : parseNum(tr.cells[bidCol]?.textContent);
      const ask = askCol < 0 ? NaN : parseNum(tr.cells[askCol]?.textContent);

result[name] = Object.assign(result[name] || {}, {
        itemid,
        stock,
        bid,
        ask,
        unitBid: bid,
        unitAsk: ask,
      });
    });
  }

async function fetchMarketCrystalIndex() {
    const result = {};

const urls = [
      '?s=Bazaar&ss=mk&filter=mo&screen=browseitems',
      '?s=Bazaar&ss=mk&filter=ma&screen=browseitems',
      '?s=Bazaar&ss=mk&screen=browseitems',
    ];

for (const url of urls) {
      try {
        const html = await fetchText(url);
        parseMarketRows(htmlToDoc(html), result);

if (
          crystalNames.every((n) =>
            result[n]?.itemid ||
            Number.isFinite(result[n]?.ask) ||
            Number.isFinite(result[n]?.bid)
          )
        ) {
          break;
        }
      } catch (e) {
        console.warn('[PL Planner] Market browse failed:', url, e);
      }
    }

return result;
  }

function parseMarketDirectBuyPrice(doc) {
    const infoText = $('#market_iteminfo', doc)?.textContent || '';
    const raw = infoText.match(/Can always be bought for\s+([\d,]+)\s*C/i)?.[1]
      || infoText.match(/(?:direct supply price|直接供貨價|直接供货价)[^\d]*([\d,]+)\s*C/i)?.[1];
    const price = Math.floor(parseNum(raw));
    return Number.isFinite(price) && price > 0 ? price : 0;
  }

function parseMarketBalance(doc) {
    const candidates = [
      ...$all('.credit_balance', doc),
      $('#market_xfer', doc),
      doc.body,
    ].filter(Boolean);

for (const node of candidates) {
      const match = (node.textContent || '').match(/Market Balance[\s\S]*?([\d,]+)\s*C/i);
      const balance = parseNum(match?.[1]);
      if (Number.isFinite(balance)) return Math.max(0, Math.floor(balance));
    }
    return null;
  }

function parseOrderBook(doc, selector) {
    return $all(`${selector} .market_itemorders table tr`, doc).slice(1).map((row) => ({
      crystals: Math.max(0, Math.floor(parseNum(row.cells?.[0]?.textContent) || 0)),
      batchPrice: Math.max(0, Math.round(parseNum(row.cells?.[1]?.textContent) || 0)),
    })).filter((order) => order.crystals > 0 && order.batchPrice > 0);
  }

async function fetchMarketDetailData(itemid) {
    const html = await fetchText(`?s=Bazaar&ss=mk&screen=browseitems&filter=mo&itemid=${encodeURIComponent(itemid)}`);
    const doc = htmlToDoc(html);

const name = canonicalCrystalName($('#market_itemheader', doc)?.children?.[1]?.textContent);
    const batchSize = parseMarketBatchSize(doc);
    const count = $('#buyorder_batchcount, input[name="buyorder_batchcount"]', doc);
    const rows = $('#market_price', doc)?.rows;

if (!name) return null;

const result = {
      batchSize,
      directBuyPrice: parseMarketDirectBuyPrice(doc),
      askOrders: parseOrderBook(doc, '#market_itemsell'),
      bidOrders: parseOrderBook(doc, '#market_itembuy'),
      currentOrder: {
        count: Math.max(0, Math.floor(parseNum(count?.value) || 0)),
      },
    };

if (!batchSize || !rows || rows.length < 5) return result;

function avg(rowIndex) {
      const text = rows[rowIndex]?.cells?.[3]?.textContent || '';
      const v = parseNum(text);
      return v ? v / batchSize : 0;
    }

return Object.assign(result, {
      day: avg(1),
      week: avg(2),
      month: avg(3),
      year: avg(4),
    });
  }

async function enrichCrystalMarketData(data) {
    const targets = crystalNames.filter((name) => data[name]?.itemid);
    let done = 0;

await mapLimit(targets, MARKET_DETAIL_CONCURRENCY, async (name) => {
      let detail = null;
      try {
        detail = await fetchMarketDetailData(data[name].itemid);
      } catch (e) {
        console.warn('[PL Planner] Market crystal detail failed:', name, e);
      }
      done++;
      setStatus(t('statusReadingMarket', { done, total: targets.length }));

if (detail) {
        const row = Object.assign(data[name], detail);
        const batchSize = positiveNumber(row.batchSize);
        row.batchBid = batchSize && positiveNumber(row.unitBid) ? Math.max(1, Math.round(row.unitBid * batchSize)) : 0;
        row.batchAsk = batchSize && positiveNumber(row.unitAsk) ? Math.max(1, Math.round(row.unitAsk * batchSize)) : 0;
      }
    });

}

async function fetchCrystalMarketData() {
    const data = await fetchMarketCrystalIndex();
    await enrichCrystalMarketData(data);

runtime.marketData = Object.assign({}, runtime.marketData, data);
    return data;
  }

function applyPricesByCrystal(priceByCrystal) {
    let updated = 0;
    const failed = [];

displayAll.forEach((a) => {
      const crystal = crystalByAttr[a];
      const v = positiveNumber(priceByCrystal[crystal]);

if (v) {
        state.prices[a] = v;
        updated++;
      } else {
        failed.push(crystalLabel(crystal));
      }
    });

return { updated, failed };
  }

function rebuildLastPlan() {
    if (!runtime.lastPlan?.results?.length) return;
    const monsters = runtime.lastPlan.results.map((result) => ({
      slot: result.monsterSlot,
      name: result.monsterName,
      levels: result.startLevels,
    }));
    runtime.lastPlan = buildBatchPlan(monsters, Number(state.targetPL));
  }

function persistMarketPriceCache(data) {
    const hvutPrices = readHvutPriceStore();
    let updated = 0;
    const failed = [];

all.forEach((attr) => {
      const crystal = crystalByAttr[attr];
      const market = data[crystal] || {};
      const cached = state.priceCache[crystal] || (state.priceCache[crystal] = {});
      marketPriceSources.forEach((source) => {
        const value = positiveNumber(market[source]);
        if (value) cached[source] = value;
      });
      const hvut = positiveNumber(hvutPrices[crystal]);
      if (hvut) cached.hvut = hvut;
      if (positiveNumber(market.batchSize)) cached.batchSize = Math.floor(market.batchSize);

if (marketPriceSources.every((source) => positiveNumber(cached[source]))) updated++;
      else failed.push(crystalLabel(crystal));
    });

return { updated, failed };
  }

function applyCalculationPriceSource(source = state.priceSource) {
    return applyPricesByCrystal(getCrystalPricesForSource(source, state.priceCache));
  }

if (save) saveState();
    if (notify) {
      setStatus(failed.length
        ? t('statusOrderPricesPartial', {
          source: priceSourceLabel(source),
          updated,
          failed: joinList(failed),
        })
        : t('statusOrderPricesComplete', { source: priceSourceLabel(source) }));
    }
    return { updated, failed };
  }

async function refreshMarketSnapshot({ silent = false, rerender = true, applySavedSources = true } = {}) {
    readInputs({ save: false });
    if (!silent) setStatus(t('statusReadingMarket'));
    const data = await fetchCrystalMarketData();
    runtime.inventoryLoaded = true;
    runtime.orderBooksLoaded = true;

if (rerender && runtime.lastPlan) renderPlan(runtime.lastPlan);

function levelsEqual(a, b) {
    return all.every((attr) => Number(a?.[attr]) === Number(b?.[attr]));
  }

function getSelectedLoadedMonsters() {
    const slots = getSelectedMonsterSlots();
    return slots.map((slot) => runtime.monsters.get(String(slot))).filter(Boolean);
  }

const requirements = Object.fromEntries(all.map((attr) => [attr, 0]));
    let totalCost = 0;
    results.forEach((result) => {
      if (!result.ok) return;
      totalCost += result.totalCost;
      all.forEach((attr) => {
        requirements[attr] += Number(result.agg[attr].crystals) || 0;
      });
    });

return {
      ok: results.length > 0 && results.every((result) => result.ok),
      targetPL: target,
      results,
      requirements,
      totalCost,
      monsterCount: results.length,
    };
  }

function buildUpgradeRequests(result, slot) {
    const requests = [];

all.forEach((attr) => {
      let count = result.agg[attr].k;
      const queryName = upgradeQueryByAttr[attr];

while (count > 0) {
        const step = Math.min(10, count);
        requests.push({
          attr,
          count: step,
          slot: String(slot),
          url: `?s=Bazaar&ss=ml&slot=${encodeURIComponent(slot)}`,
          data: `crystal_upgrade=${encodeURIComponent(queryName)}&crystal_count=${step}`,
        });
        count -= step;
      }
    });

return requests;
  }

function requiredTradeBatches(shortage, batchSize) {
    const missing = Math.max(0, Math.ceil(Number(shortage) || 0));
    if (!missing) return 0;
    const size = Math.floor(positiveNumber(batchSize));
    return size ? Math.floor(missing / size) + 1 : null;
  }

function estimateOrderBookPurchase(crystalsToBuy, batchSize, askOrders, directBuyPrice) {
    const size = Math.floor(positiveNumber(batchSize));
    const totalBatches = size ? Math.floor(positiveNumber(crystalsToBuy) / size) : 0;
    if (!size || !totalBatches || !Array.isArray(askOrders)) return null;

let remainingBatches = totalBatches;
    let estimatedCost = 0;
    let lowestBatchPrice = 0;
    let highestBatchPrice = 0;
    const sortedAsks = askOrders.slice().sort((a, b) => a.batchPrice - b.batchPrice);

sortedAsks.forEach((order) => {
      if (!remainingBatches) return;
      const availableBatches = Math.floor(positiveNumber(order.crystals) / size);
      const batchPrice = Math.round(positiveNumber(order.batchPrice));
      if (!availableBatches || !batchPrice) return;
      const matched = Math.min(remainingBatches, availableBatches);
      estimatedCost += matched * batchPrice;
      remainingBatches -= matched;
      if (!lowestBatchPrice) lowestBatchPrice = batchPrice;
      highestBatchPrice = batchPrice;
    });

const guaranteedPrice = Math.round(positiveNumber(directBuyPrice));
    const guaranteedBatches = remainingBatches;
    if (remainingBatches && guaranteedPrice) {
      estimatedCost += remainingBatches * guaranteedPrice;
      if (!lowestBatchPrice) lowestBatchPrice = guaranteedPrice;
      highestBatchPrice = Math.max(highestBatchPrice, guaranteedPrice);
      remainingBatches = 0;
    }

return {
      estimatedCost: remainingBatches ? null : estimatedCost,
      lowestBatchPrice,
      highestBatchPrice,
      guaranteedBatches,
    };
  }

function getPurchaseEstimateSummary(rows) {
    let estimatedCost = 0;
    let requiredStartingBalance = 0;
    const shortages = rows.filter((row) => row.shortage > 0 && row.batches > 0);
    if (!shortages.length || shortages.some((row) => !Number.isFinite(row.estimatedDirectCost))) return null;

shortages.forEach((row) => {
      requiredStartingBalance = Math.max(
        requiredStartingBalance,
        estimatedCost + row.directBalanceRequired
      );
      estimatedCost += row.estimatedDirectCost;
    });
    return { estimatedCost, requiredStartingBalance };
  }

function getCrystalShortages(rows) {
    return rows.filter((row) => row.shortage > 0 && row.batches > 0);
  }

function getUnknownCrystalRows(rows) {
    return rows.filter((row) =>
      row.required > 0
      && (row.stock === null || (row.shortage > 0 && (!row.itemid || !row.batchSize)))
    );
  }

function sleep(ms) {
    return new Promise((resolve) => setTimeout(resolve, ms));
  }

function marketResponseError(doc) {
    const messages = $all('#messagebox_inner p', doc).map((node) => node.textContent.trim()).filter(Boolean);
    return messages.find((message) => /(?:error|invalid|cannot|not enough|insufficient|exceed|failed)/i.test(message)) || '';
  }

function orderNotAppliedError(crystal) {
    const error = new Error(t('errorOrderNotApplied', { crystal: crystalLabel(crystal) }));
    error.code = 'ORDER_NOT_APPLIED';
    return error;
  }

function parseCrystalBuyForm(doc, crystal) {
    const section = $('#market_itembuy', doc);
    if (!section) throw new Error(t('errorMarketItemForm', { crystal: crystalLabel(crystal) }));

if (!token || !count || !price || !submit) {
      throw new Error(t('errorMarketItemForm', { crystal: crystalLabel(crystal) }));
    }
    if (!batchSize) {
      throw new Error(t('errorCrystalBatch', { crystal: crystalLabel(crystal) }));
    }

function controlName(node) {
      return node.getAttribute('name') || node.id || '';
    }

const names = {
      token: controlName(token),
      count: controlName(count),
      price: controlName(price),
      submit: controlName(submit),
    };
    if (Object.values(names).some((name) => !name)) {
      throw new Error(t('errorMarketItemForm', { crystal: crystalLabel(crystal) }));
    }

return {
      names,
      token: token.value,
      submitValue: 'Update',
      batchSize,
      directBuyPrice: parseMarketDirectBuyPrice(doc),
      inventoryStock: Number.isFinite(inventoryStock) ? Math.max(0, Math.floor(inventoryStock)) : null,
      currentOrder: {
        count: Math.max(0, Math.floor(parseNum(count.value) || 0)),
        price: Math.max(0, Math.round(parseNum(price.value) || 0)),
      },
      deleteControl: deleteControl ? {
        name: controlName(deleteControl),
        value: deleteControl.value || deleteControl.textContent?.trim() || 'Delete',
      } : null,
    };
  }

async function cancelCrystalBuyOrder(url, responseDoc, form, crystal) {
    if (!form.deleteControl?.name) return false;

const params = new URLSearchParams();
    params.set(form.names.token, form.token);
    params.set(form.deleteControl.name, form.deleteControl.value);
    const cancelDoc = htmlToDoc(await fetchText(url, params.toString()));
    const error = marketResponseError(cancelDoc);
    if (error) throw new Error(error);

try {
      return parseCrystalBuyForm(cancelDoc, crystal).currentOrder.count === 0;
    } catch (e) {
      console.warn('[PL Planner] Could not verify automatic buy-order cancellation:', e);
      return false;
    }
  }

async function placeCrystalBuyOrder(row, mode) {
    const label = crystalLabel(row.crystal);
    if (!row.itemid) throw new Error(t('errorMarketItemForm', { crystal: label }));

const responseDoc = htmlToDoc(await fetchText(url, params.toString()));
    const error = marketResponseError(responseDoc);
    if (error) throw new Error(error);
    const responseForm = parseCrystalBuyForm(responseDoc, row.crystal);
    if (responseForm.batchSize !== row.batchSize) {
      throw new Error(t('errorCrystalBatchChanged', {
        crystal: label,
        expected: row.batchSize,
        actual: responseForm.batchSize,
      }));
    }

if (mode === 'order' && (
      remainingBatches > submittedBatches
      || (remainingBatches > 0 && remainingPrice !== submittedPrice)
    )) {
      throw new Error(t('errorMarketItemForm', { crystal: label }));
    }

if (mode === 'direct' && remainingBatches > 0) {
      const cancelled = await cancelCrystalBuyOrder(url, responseDoc, responseForm, row.crystal);
      if (!cancelled) {
        throw new Error(t('errorDirectRemainder', {
          crystal: label,
          batches: remainingBatches,
        }));
      }
      result.cancelledRemainder = true;
      result.responseStatus = 'remainder-cancelled';
    }

return result;
  }

async function executeCrystalPurchase(mode, button) {
    const plan = runtime.lastPlan;
    if (!plan?.ok) {
      setStatus(t('errorNoValidPlan'));
      return;
    }

setStatus(t('statusCheckingPurchase'));
    await refreshMarketSnapshot({ silent: true, rerender: false, applySavedSources: false });
    const crystalRows = getCrystalPlanRows(plan);
    renderPlan(plan, crystalRows);

const unknown = getUnknownCrystalRows(crystalRows);
    if (unknown.length) {
      throw new Error(t('statusInventoryPartial', { failed: joinList(unknown.map((row) => row.label)) }));
    }

const rows = getCrystalShortages(crystalRows);
    if (!rows.length) {
      setStatus(t('statusNoShortage'));
      return;
    }

if (mode === 'order' && rows.some((row) => !positiveNumber(row.orderBatchPrice))) {
      throw new Error(t('errorNoValidPlan'));
    }

if (mode === 'direct') {
      const missingDirectPrice = rows.find((row) => !positiveNumber(row.directBuyPrice));
      if (missingDirectPrice) {
        throw new Error(t('errorDirectPrice', { crystal: missingDirectPrice.label }));
      }
      const existing = rows.filter((row) => row.currentOrder.count > 0);
      if (existing.length) {
        throw new Error(t('errorExistingBuyOrder', {
          crystals: joinList(existing.map((row) => row.label)),
        }));
      }
    }

for (let i = 0; i < rows.length; i++) {
      const row = rows[i];
      const price = mode === 'direct' ? row.directBuyPrice : row.orderBatchPrice;
      button.textContent = t('buttonBuying', { current: i + 1, total: rows.length });
      setStatus(t('statusExecutingPurchase', {
        current: i + 1,
        total: rows.length,
        crystal: row.label,
        crystals: row.crystalsToBuy.toLocaleString(),
        price: price.toLocaleString(),
      }));
      let ignoredRetries = 0;
      let result;
      while (!result) {
        try {
          result = await placeCrystalBuyOrder(row, mode);
        } catch (error) {
          if (mode !== 'direct' || error?.code !== 'ORDER_NOT_APPLIED' || ignoredRetries >= DIRECT_BUY_MAX_RETRIES) {
            throw error;
          }
          ignoredRetries++;
          setStatus(t('statusRetryingPurchase', {
            crystal: row.label,
            attempt: ignoredRetries,
          }));
          await sleep(DIRECT_BUY_RETRY_DELAY_MS * ignoredRetries);
        }
      }
      if (result.cancelledRemainder) {
        throw new Error(t('errorDirectRemainderCancelled', {
          crystal: row.label,
          batches: result.remainingBatches,
        }));
      }
      if (i + 1 < rows.length) await sleep(REQUEST_DELAY_MS);
    }

if (mode === 'direct') {
      await refreshMarketSnapshot({ silent: true, rerender: false, applySavedSources: false });
      renderPlan(plan);
      setStatus(t('statusDirectBuyComplete', { total: rows.length }));
    } else {
      setStatus(t('statusBuyOrdersComplete', { total: rows.length }));
    }
  }

async function executeBatchUpgradePlan(plan, button) {
    if (!plan?.ok) {
      setStatus(t('errorNoValidPlan'));
      return;
    }

const requests = plan.results.flatMap((result) => buildUpgradeRequests(result, result.monsterSlot));
    if (!requests.length) {
      setStatus(t('statusNoUpgrade'));
      return;
    }

await refreshMarketSnapshot({ silent: true, rerender: false, applySavedSources: false });
    const crystalRows = getCrystalPlanRows(plan);
    renderPlan(plan, crystalRows);
    const unknown = getUnknownCrystalRows(crystalRows);
    if (unknown.length) {
      setStatus(t('statusInventoryPartial', { failed: joinList(unknown.map((row) => row.label)) }));
      return;
    }
    const shortages = getCrystalShortages(crystalRows);
    if (shortages.length) {
      setStatus(t('statusCrystalShortage', {
        failed: joinList(shortages.map((row) => `${row.label} ${row.shortage.toLocaleString()}`)),
      }));
      return;
    }

const totalLevels = requests.reduce((sum, request) => sum + request.count, 0);
    if (!confirm(t('confirmUpgrade', {
      monsters: plan.monsterCount,
      requests: requests.length,
      levels: totalLevels,
    }))) return;

for (let i = 0; i < requests.length; i++) {
      const request = requests[i];
      button.textContent = t('buttonRunningUpgrade', { current: i + 1, total: requests.length });
      setStatus(t('statusExecutingUpgrade', {
        current: i + 1,
        total: requests.length,
        slot: request.slot,
        attr: attrLabel(request.attr),
        count: request.count,
      }));
      await fetchText(request.url, request.data);
      if (i + 1 < requests.length) await sleep(REQUEST_DELAY_MS);
    }

if (finalRecords[0]?.levels) setLevels(finalRecords[0].levels);
    await refreshMarketSnapshot({ silent: true, rerender: false, applySavedSources: false });
    runtime.lastPlan = buildBatchPlan(finalRecords, plan.targetPL);
    renderPlan(runtime.lastPlan);
    setStatus(complete
      ? t('statusUpgradeComplete', { total: finalRecords.length })
      : t('statusUpgradeMismatch'));
  }

function renderPriceSourceSelect(id, selectedValue) {
    const select = elt('select', { id });

priceSourceValues.forEach((value) => {
      select.appendChild(elt('option', {
        value,
        text: priceSourceLabel(value),
        dataset: { source: value },
        selected: selectedValue === value,
      }));
    });

return select;
  }

function renderButton(id, textKey) {
    return elt('button', {
      id,
      type: 'button',
      text: t(textKey),
      dataset: { i18n: textKey },
    });
  }

function setRuntimeBusy(busy) {
    const nextBusy = Boolean(busy);
    const resumeCalculation = !nextBusy && runtime.calculationPending;
    runtime.busy = nextBusy;
    $all('.hvmepp-monster-check, #hvmepp-select-all-monsters, #hvmepp-clear-monsters')
      .forEach((control) => { control.disabled = nextBusy; });
    if (resumeCalculation) scheduleCalculation();
  }

function bindManagedAction(button, textKey, errorKey, action) {
    button.addEventListener('click', async () => {
      if (runtime.busy) return;

setRuntimeBusy(true);
      button.disabled = true;
      try {
        await action(button);
      } catch (error) {
        setStatus(t(errorKey, { message: error.message }));
      } finally {
        button.disabled = false;
        button.textContent = t(textKey);
        setRuntimeBusy(false);
      }
    });
  }

function setStatus(text) {
    const n = $('#hvmepp-status');
    if (n) n.textContent = text || '';
  }

function refreshLanguageButtons() {
    $all('.hvmepp-lang-switch button').forEach((button) => {
      const active = button.dataset.lang === state.language;
      button.classList.toggle('hvmepp-lang-active', active);
      button.setAttribute('aria-pressed', active ? 'true' : 'false');
    });
  }

function refreshPriceSourceOptions() {
    $all('#hvmepp-source option, #hvmepp-order-source option').forEach((option) => {
      const source = option.dataset.source || option.value;
      option.textContent = priceSourceLabel(source);
    });
  }

function refreshLocalizedText({ rerenderResult = true } = {}) {
    $all('[data-i18n]').forEach((node) => {
      node.textContent = t(node.dataset.i18n);
    });

$all('[data-i18n-value]').forEach((node) => {
      node.value = t(node.dataset.i18nValue);
    });

$all('[data-attr]').forEach((node) => {
      node.textContent = attrLabel(node.dataset.attr);
    });

refreshPriceSourceOptions();
    refreshLanguageButtons();
    updateCurrentPL({ save: false });

if (rerenderResult && runtime.lastPlan && $('#hvmepp-result')?.hasChildNodes()) {
      renderPlan(runtime.lastPlan);
    }
  }

function setLanguage(language) {
    const nextLanguage = normalizeLanguage(language);
    readInputs({ save: false });
    state.language = nextLanguage;
    rebuildLastPlan();
    saveState();
    refreshLocalizedText();
    setStatus(t('statusLanguageSaved'));
  }

function renderLanguageSwitcher() {
    const bar = elt('div', { class: 'hvmepp-lang-switch' });

languageOptions.forEach(([value, label]) => {
      const active = value === state.language;
      const button = elt('button', {
        type: 'button',
        text: label,
        class: active ? 'hvmepp-lang-active' : '',
        dataset: { lang: value },
        ariaPressed: active ? 'true' : 'false',
      });

button.addEventListener('click', () => setLanguage(value));
      bar.appendChild(button);
    });

return bar;
  }

if (!result.ok) {
      details.appendChild(elt('div', { class: 'hvmepp-alert', text: result.message }));
      return details;
    }

const table = elt('table', { class: 'hvmepp-table' });
    table.appendChild(elt('tr', {}, [
      t('tableAttr'),
      t('tableCurrentLevel'),
      t('tableTargetLevel'),
      t('tableIncrease'),
      t('tableCost'),
    ].map((heading) => elt('th', { text: heading }))));

if (!upgraded.length) {
      table.appendChild(elt('tr', {}, [
        elt('td', { colspan: 5, text: t('noUpgradeNeeded') }),
      ]));
    }
    details.appendChild(table);
    return details;
  }

function renderCrystalPlan(plan, rows) {
    const card = elt('div', { class: 'hvmepp-card hvmepp-crystal-card' });
    card.appendChild(elt('h3', {
      text: t('headingCrystalNeeds'),
      dataset: { i18n: 'headingCrystalNeeds' },
    }));

if (!plan.ok) {
      card.appendChild(elt('div', { class: 'hvmepp-alert', text: t('crystalPlanUnavailable') }));
      return card;
    }

const table = elt('table', { class: 'hvmepp-table hvmepp-crystal-table' });
    table.appendChild(elt('tr', {}, [
      t('tableCrystal'),
      t('tableRequired'),
      t('tableStock'),
      t('tableShortage'),
      t('tableEstimatedCost'),
      t('tableOrderPrice'),
    ].map((heading) => elt('th', { text: heading }))));

rows.forEach((row) => {
      const shortage = row.shortage === null ? '-' : row.shortage.toLocaleString();
      let estimatedCost = row.shortage > 0 ? t('estimateUnavailable') : formatMoney(0);
      let estimateTitle = '';
      if (Number.isFinite(row.estimatedDirectCost)) {
        estimatedCost = formatMoney(row.estimatedDirectCost);
        const range = row.estimatedLowestBatchPrice === row.estimatedHighestBatchPrice
          ? `${row.estimatedLowestBatchPrice} C`
          : `${row.estimatedLowestBatchPrice}-${row.estimatedHighestBatchPrice} C`;
        estimateTitle = range;
        if (row.guaranteedBatches) {
          estimateTitle += ` / ${t('estimateUsesSupply', { batches: row.guaranteedBatches.toLocaleString() })}`;
        }
      }
      const tr = elt('tr', { class: row.shortage > 0 ? 'hvmepp-shortage' : '' }, [
        elt('td', { text: row.label }),
        elt('td', { text: row.required.toLocaleString() }),
        elt('td', { text: row.stock === null ? t('stockUnknown') : row.stock.toLocaleString() }),
        elt('td', { text: shortage }),
        elt('td', { text: estimatedCost, title: estimateTitle }),
        elt('td', {}, elt('input', {
          id: `hvmepp-order-price-${row.attr}`,
          type: 'number',
          min: 1,
          step: 1,
          value: row.orderBatchPrice || '',
          disabled: !row.batchSize,
          title: row.label,
        })),
      ]);
      table.appendChild(tr);
    });
    card.appendChild(table);

const estimateSummary = getPurchaseEstimateSummary(rows);
    if (estimateSummary) {
      card.appendChild(elt('div', {
        class: 'hvmepp-estimate-summary',
        text: t('estimateSummary', {
          cost: formatMoney(estimateSummary.estimatedCost),
          balance: formatMoney(estimateSummary.requiredStartingBalance),
        }),
      }));
    }

const actions = elt('div', { class: 'hvmepp-controls hvmepp-result-actions' });
    const stockButton = renderButton('hvmepp-load-stock', 'buttonLoadStock');
    const directButton = renderButton('hvmepp-direct-buy', 'buttonDirectBuy');
    const orderButton = renderButton('hvmepp-place-buy-orders', 'buttonPlaceBuyOrders');

bindManagedAction(stockButton, 'buttonLoadStock', 'statusFetchPriceFailed', refreshMarketSnapshot);
    bindManagedAction(directButton, 'buttonDirectBuy', 'statusPurchaseFailed',
      (managedButton) => executeCrystalPurchase('direct', managedButton));
    bindManagedAction(orderButton, 'buttonPlaceBuyOrders', 'statusPurchaseFailed',
      (managedButton) => executeCrystalPurchase('order', managedButton));

actions.append(stockButton, directButton, orderButton);
    card.appendChild(actions);
    return card;
  }

function renderPlan(plan, crystalRows = null) {
    const box = $('#hvmepp-result');
    if (!box) return;
    const fragment = document.createDocumentFragment();

if (!plan || plan.message) {
      fragment.appendChild(elt('div', { class: 'hvmepp-alert', text: plan?.message || t('errorNoValidPlan') }));
      replacePlanContent(box, fragment);
      return;
    }

fragment.appendChild(elt('div', { class: 'hvmepp-total' }, [
      `${t('totalMonsters')} `,
      elt('span', { class: 'hvmepp-good', text: String(plan.monsterCount) }),
      `   ${t('totalCost')} `,
      elt('span', { class: 'hvmepp-good', text: formatMoney(plan.totalCost) }),
    ]));

const rows = crystalRows || getCrystalPlanRows(plan);
    fragment.appendChild(renderCrystalPlan(plan, rows));

if (plan.ok) {
      const requests = plan.results.flatMap((result) => buildUpgradeRequests(result, result.monsterSlot));
      const executable = plan.results.every((result) => /^\d+$/.test(result.monsterSlot));
      if (requests.length && executable) {
        const runButton = renderButton('hvmepp-run-upgrade', 'buttonRunUpgrade');
        bindManagedAction(runButton, 'buttonRunUpgrade', 'statusUpgradeFailed',
          (managedButton) => executeBatchUpgradePlan(plan, managedButton));
        fragment.appendChild(elt('div', { class: 'hvmepp-controls hvmepp-result-actions' }, [runButton]));
      }
    }

plan.results.forEach((result) => {
      fragment.appendChild(renderSingleMonsterResult(result));
    });
    replacePlanContent(box, fragment);
  }

function replacePlanContent(box, fragment = null) {
    const panel = $('#hvmepp-panel');
    const scrollTop = panel?.scrollTop || 0;
    if (fragment) box.replaceChildren(fragment);
    else box.replaceChildren();
    box.removeAttribute('aria-busy');
    if (panel) panel.scrollTop = scrollTop;
  }

function calculate() {
    clearScheduledCalculation();
    readInputs();
    updateCurrentPL({ save: false });

const selected = getSelectedMonsterSlots();
    if (!selected.length) {
      clearCurrentPlan();
      return null;
    }

const monsters = getSelectedLoadedMonsters();
    if (monsters.length !== selected.length) {
      const invalidPlan = { message: t('errorMonstersNotLoaded') };
      runtime.lastPlan = null;
      renderPlan(invalidPlan);
      setStatus(invalidPlan.message);
      return invalidPlan;
    }

const plan = buildBatchPlan(monsters, Number(state.targetPL));
    runtime.lastPlan = plan;
    renderPlan(plan);
    return plan;
  }

function renderMonsterSelection(monsterList) {
    const card = elt('div', { class: 'hvmepp-card hvmepp-monster-select-card' });
    card.appendChild(elt('h3', {
      text: t('headingMonsterSelection'),
      dataset: { i18n: 'headingMonsterSelection' },
    }));

const toolbar = elt('div', { class: 'hvmepp-controls' });
    const selectAllButton = renderButton('hvmepp-select-all-monsters', 'buttonSelectAll');
    const clearButton = renderButton('hvmepp-clear-monsters', 'buttonClearSelection');
    selectAllButton.disabled = runtime.busy;
    clearButton.disabled = runtime.busy;
    toolbar.append(selectAllButton, clearButton, elt('span', { id: 'hvmepp-selection-summary' }));
    card.appendChild(toolbar);

const selected = new Set(state.selectedMonsterSlots.map(String));
    const validSlots = new Set(monsterList.map((monster) => String(monster.index)));
    if (query.slot) selected.add(String(query.slot));
    if (![...selected].some((slot) => validSlots.has(slot)) && validSlots.has(String(state.lastMonsterSlot))) {
      selected.add(String(state.lastMonsterSlot));
    }

selectAllButton.addEventListener('click', () => {
      if (runtime.busy) return;
      $all('.hvmepp-monster-check').forEach((checkbox) => { checkbox.checked = true; });
      syncMonsterSelection();
    });
    clearButton.addEventListener('click', () => {
      if (runtime.busy) return;
      $all('.hvmepp-monster-check').forEach((checkbox) => { checkbox.checked = false; });
      syncMonsterSelection();
    });

queueMicrotask(syncMonsterSelection);
    return card;
  }

function renderPanel() {
    let overlay = $('#hvmepp-overlay');

if (overlay) {
      overlay.classList.remove('hvmepp-hidden');
      const easterEgg = $('#hvmepp-easter-egg');
      if (easterEgg) easterEgg.textContent = randomEasterEgg();
      refreshLocalizedText();
      return;
    }

overlay = elt('div', { id: 'hvmepp-overlay' });

const panel = elt('div', { id: 'hvmepp-panel' });
    overlay.appendChild(panel);

panel.appendChild(renderLanguageSwitcher());

const easterEgg = elt('button', {
      id: 'hvmepp-easter-egg',
      class: 'hvmepp-easter-egg',
      type: 'button',
      text: randomEasterEgg(),
      title: 'Click to refresh',
    });
    easterEgg.addEventListener('click', () => {
      easterEgg.textContent = randomEasterEgg(easterEgg.textContent);
    });

const closeButton = elt('button', { text: '×', class: 'hvmepp-close' });
    const title = elt('div', { class: 'hvmepp-title' }, [
      elt('span', { text: t('plannerTitle'), dataset: { i18n: 'plannerTitle' } }),
      elt('div', { class: 'hvmepp-title-actions' }, [
        easterEgg,
        closeButton,
      ]),
    ]);

closeButton.addEventListener('click', () => {
      overlay.classList.add('hvmepp-hidden');
    });

panel.appendChild(title);

panel.appendChild(elt('div', {
      id: 'hvmepp-live',
      class: 'hvmepp-live',
    }));

const controls = elt('div', { class: 'hvmepp-controls' });

controls.appendChild(elt('label', {}, [
      elt('span', { text: t('labelTargetInput'), dataset: { i18n: 'labelTargetInput' } }),
      ' ',
      elt('input', {
        id: 'hvmepp-target',
        type: 'number',
        step: 0.5,
        value: state.targetPL,
      }),
    ]));

controls.appendChild(elt('label', {}, [
      elt('span', { text: t('labelPriceSource'), dataset: { i18n: 'labelPriceSource' } }),
      ' ',
      renderPriceSourceSelect('hvmepp-source', state.priceSource),
    ]));

controls.appendChild(renderButton('hvmepp-fetch-price', 'buttonFetchPrice'));
    controls.appendChild(renderButton('hvmepp-load-monster', 'buttonLoadMonster'));

panel.appendChild(controls);

runtime.monsterList = parseMonsterList();
    if (query.slot && !runtime.monsterList.some((monster) => String(monster.index) === String(query.slot))) {
      const currentLevels = parseMonsterLevelsFromDoc(document);
      runtime.monsterList.push({
        index: String(query.slot),
        name: $('.msl > div:nth-child(2)')?.textContent?.trim() || t('monsterFallback', { slot: query.slot }),
        pl: currentLevels ? totalPL(currentLevels) : 0,
      });
    }

if (runtime.monsterList.length) {
      panel.appendChild(renderMonsterSelection(runtime.monsterList));
    }

panel.appendChild(elt('div', {
      id: 'hvmepp-status',
      class: 'hvmepp-status',
    }));

panel.appendChild(elt('div', {
      id: 'hvmepp-result',
    }));

document.body.appendChild(overlay);

$('#hvmepp-target').addEventListener('input', () => scheduleCalculation(80));

$('#hvmepp-source').addEventListener('change', () => {
      readInputs({ save: false });
      const result = applyCalculationPriceSource();
      scheduleCalculation();
      setStatus(result.failed.length
        ? t('statusSavedPriceSourcePartial', {
          source: priceSourceLabel(state.priceSource),
          updated: result.updated,
          failed: joinList(result.failed),
        })
        : t('statusSavedPriceSource', { source: priceSourceLabel(state.priceSource) }));
    });

bindManagedAction($('#hvmepp-fetch-price'), 'buttonFetchPrice', 'statusFetchPriceFailed', refreshMarketSnapshot);
    bindManagedAction($('#hvmepp-load-monster'), 'buttonLoadMonster', 'statusLoadMonsterFailed', async () => {
      if (query.slot && readCurrentMonsterIfAny()) return;
      await loadSelectedMonsters();
    });

readCurrentMonsterIfAny({ recalculate: false });
    updateCurrentPL({ save: false });
  }

function findPowerLevelCalculatorButton(side) {
    const nodes = $all('input[type="button"], button', side);

return nodes.find((n) => {
      const label = (n.value || n.textContent || '').trim();
      return label === 'Power Level Calculator';
    });
  }

function createEntryButton() {
    const btn = elt('input', {
      id: 'hvmepp-entry',
      type: 'button',
      value: t('plannerTitle'),
      dataset: { i18nValue: 'plannerTitle' },
    });

btn.addEventListener('click', renderPanel);
    return btn;
  }

function getOrCreateEntrySide(createFallback = false) {
    const hvutSide = $('.hvut-ml-side');
    if (hvutSide) return hvutSide;

if (!createFallback) return null;

const monsterOuter = $('#monster_outer');
    const host = monsterOuter || $('#mainpane') || document.body;
    const side = elt('div', {
      class: monsterOuter
        ? 'hvmepp-side-fallback'
        : 'hvmepp-side-fallback hvmepp-side-fallback-static',
    });

if (monsterOuter) {
      monsterOuter.classList.add('hvmepp-ml-host-fallback');
    } else if (host && getComputedStyle(host).position === 'static') {
      host.style.position = 'relative';
    }

host.appendChild(side);

if (monsterOuter) {
      requestAnimationFrame(() => clampFallbackSide(side));
      window.addEventListener('resize', () => clampFallbackSide(side));
    }

return side;
  }

function clampFallbackSide(side) {
    if (getComputedStyle(side).position !== 'absolute') {
      side.style.left = '';
      return;
    }

side.style.left = '';
    const rect = side.getBoundingClientRect();
    const min = 8;
    const max = window.innerWidth - 8;
    let left = parseFloat(getComputedStyle(side).left) || 0;

if (rect.left < min) {
      left += min - rect.left;
    } else if (rect.right > max) {
      left -= rect.right - max;
    } else {
      return;
    }

side.style.left = `${Math.round(left)}px`;
  }

function mountEntryButton(createFallback = false) {
    if ($('#hvmepp-entry')) return true;

const side = getOrCreateEntrySide(createFallback);
    if (!side) return false;

const btn = createEntryButton();

const plcButton = findPowerLevelCalculatorButton(side);

if (plcButton) {
      plcButton.insertAdjacentElement('afterend', btn);
    } else {
      side.appendChild(btn);
    }

return true;
  }

function scheduleEntryButton() {
    let fallbackTimer = null;
    let observer = null;

function cleanup() {
      if (fallbackTimer) clearTimeout(fallbackTimer);
      if (observer) observer.disconnect();
    }

if (mountEntryButton()) return;

observer = new MutationObserver(() => {
      if (mountEntryButton()) {
        cleanup();
      }
    });

observer.observe(document.body, { childList: true, subtree: true });

fallbackTimer = setTimeout(() => {
      mountEntryButton(true);
      cleanup();
    }, 3000);
  }

GM_addStyle(`
    #hvmepp-entry {
      cursor: pointer;
      display: block;
      box-sizing: border-box;
    }

.hvmepp-ml-host-fallback {
      margin-left: 150px;
      position: relative;
    }

.hvmepp-side-fallback {
      position: absolute;
      top: 38px;
      left: -110px;
      width: 100px;
      display: flex;
      flex-direction: column;
      z-index: 10;
    }

.hvmepp-side-fallback input {
      margin: 3px 0;
      padding: 1px;
      white-space: normal;
    }

.hvmepp-side-fallback-static {
      position: static;
      width: 100px;
      margin: 4px 0;
    }

#hvmepp-overlay {
      position: fixed;
      inset: 0;
      z-index: 9999;
      background: rgba(0,0,0,.45);
      display: flex;
      align-items: flex-start;
      justify-content: center;
      box-sizing: border-box;
      padding: 8px;
      color: #222;
    }

#hvmepp-overlay.hvmepp-hidden {
      display: none;
    }

#hvmepp-panel {
      width: min(1120px, calc(100vw - 16px));
      max-height: calc(100vh - 16px);
      overflow: auto;
      overflow-anchor: none;
      background: #EDEBDF;
      border: 1px solid #5C0D11;
      padding: 8px;
      box-shadow: 0 6px 20px rgba(0,0,0,.35);
      font: 9pt/1.25 Arial, sans-serif;
      text-align: left;
      box-sizing: border-box;
    }

.hvmepp-lang-switch {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 6px;
      margin: 0 32px 5px;
    }

.hvmepp-lang-switch button {
      min-width: 76px;
      padding: 2px 8px;
      border: 1px solid #8f806c;
      background: #f7f1d9;
      cursor: pointer;
      font: inherit;
    }

.hvmepp-lang-switch button.hvmepp-lang-active {
      border-color: #5C0D11;
      background: #edb;
      font-weight: bold;
    }

.hvmepp-title {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
      font-size: 11pt;
      margin-bottom: 4px;
    }

.hvmepp-title-actions {
      display: flex;
      align-items: center;
      gap: 8px;
    }

.hvmepp-easter-egg {
      padding: 0;
      border: 0;
      background: none;
      color: #7a5a3a;
      cursor: pointer;
      font-family: inherit;
      font-size: 9pt;
      font-weight: normal;
      white-space: nowrap;
    }

.hvmepp-close {
      width: 24px;
      height: 22px;
      cursor: pointer;
    }

.hvmepp-live,
    .hvmepp-status {
      margin: 4px 0;
      padding: 4px 6px;
      background: #fff8;
      border: 1px solid #b9aa99;
    }

.hvmepp-controls {
      display: flex;
      flex-wrap: wrap;
      gap: 4px 8px;
      align-items: center;
      margin: 5px 0;
    }

.hvmepp-controls input,
    .hvmepp-controls select {
      font-size: 9pt;
    }

.hvmepp-controls button {
      cursor: pointer;
      font: inherit;
      padding: 2px 6px;
    }

.hvmepp-card {
      border: 1px solid #b9aa99;
      background: #fff8;
      padding: 5px;
    }

.hvmepp-card h3 {
      margin: 0 0 4px;
      font-size: 10pt;
    }

.hvmepp-monster-select-card,
    .hvmepp-crystal-card {
      margin: 6px 0;
    }

.hvmepp-monster-checklist {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
      gap: 2px 8px;
      max-height: 170px;
      overflow: auto;
      padding: 4px;
      border: 1px solid #b9aa99;
      background: #fff8;
    }

.hvmepp-monster-checklist label {
      display: flex;
      align-items: center;
      gap: 4px;
      min-width: 0;
      white-space: nowrap;
    }

.hvmepp-monster-checklist label span {
      overflow: hidden;
      text-overflow: ellipsis;
    }

.hvmepp-table {
      width: 100%;
      border-collapse: collapse;
      margin: 4px 0;
      table-layout: fixed;
      font-size: 9pt;
    }

.hvmepp-table th,
    .hvmepp-table td {
      border: 1px solid #b9aa99;
      padding: 2px 3px;
      text-align: center;
      word-break: keep-all;
    }

.hvmepp-table th {
      background: #edb;
    }

.hvmepp-table input {
      width: 58px;
      text-align: right;
      box-sizing: border-box;
    }

.hvmepp-total {
      margin: 5px 0;
      padding: 5px 6px;
      border: 1px solid #b9aa99;
      background: #fff;
      line-height: 1.4;
      font-weight: bold;
    }

.hvmepp-monster-result {
      margin: 5px 0;
      border: 1px solid #b9aa99;
      background: #fff8;
    }

.hvmepp-monster-result > summary {
      padding: 5px 6px;
      cursor: pointer;
      font-weight: bold;
      background: #edb;
    }

.hvmepp-monster-result > .hvmepp-table,
    .hvmepp-monster-result > .hvmepp-alert {
      width: calc(100% - 8px);
      margin: 4px;
    }

.hvmepp-crystal-table td:first-child,
    .hvmepp-crystal-table th:first-child {
      width: 230px;
      text-align: left;
    }

.hvmepp-crystal-table td:last-child,
    .hvmepp-crystal-table th:last-child {
      width: 105px;
    }

.hvmepp-crystal-table td:last-child input {
      width: 96px;
    }

.hvmepp-crystal-price-controls {
      margin: 2px 0 4px;
    }

.hvmepp-estimate-summary {
      margin: 4px 0;
      padding: 5px 6px;
      border: 1px solid #8f806c;
      background: #fffbe8;
      line-height: 1.4;
      font-weight: bold;
    }

.hvmepp-shortage {
      color: #b00020;
      background: #fff2f2;
      font-weight: bold;
    }

.hvmepp-good {
      color: #006400;
      font-weight: bold;
    }

.hvmepp-alert {
      margin: 5px 0;
      padding: 5px 6px;
      border: 1px solid #b00020;
      color: #b00020;
      background: #fff2f2;
      font-weight: bold;
    }

.hvmepp-upgraded {
      background: #f4fff4;
    }

@media (max-width: 900px) {
      #hvmepp-panel {
        width: calc(100vw - 10px);
        max-height: calc(100vh - 10px);
        padding: 6px;
      }

.hvmepp-lang-switch {
        margin: 0 28px 4px;
        gap: 4px;
      }

.hvmepp-lang-switch button {
        min-width: 68px;
        padding: 2px 4px;
      }

.hvmepp-table input {
        width: 50px;
      }

.hvmepp-side-fallback {
        position: static;
        margin: 4px 0;
      }

.hvmepp-ml-host-fallback {
        margin-left: 0;
      }
    }
  `);

scheduleEntryButton();
})();