"use strict";

// Guildhall client: renders the server's state and animates progress bars
// between polls. The server is the source of truth for everything.

const POLL_MS = 10000;
const FIGHT_POLL_MS = 2000;  // in a fight someone may tag in: keep everyone's view of it close
const SUMMARY_MODAL_AT = 25;

let C = null;            // static content tables
let S = null;            // latest state
let skew = 0;            // server clock minus client clock, seconds
let page = decodeURIComponent(location.hash.slice(1)) || remember("page") || "town";
let selected = null;     // bank item
let dollPick = null;     // equipment slot shown on the character sheet
let orderTab = "take";   // work orders: for you, all open, yours
let draft = null;        // a work order being written
let seenOrders = null;   // order ids already known, so only new ones toast
let deliveredSeen = {};  // how much of each order had arrived
let earnedSeen = {};     // gold each order had paid you for reagents
let pickedClass = null;  // registration
const tabs = {};         // skill -> selected recipe tab
let refreshing = false;
let refreshedFor = null; // action (start and length) a completion refresh was sent for
let polledAt = 0;
let tagging = false;      // this page just tagged into someone's fight
// What you last tapped in this fight (an enemy to fight, an ally to heal): shown at once and sent with
// every press, so a tap and a press straight after it don't wait on each other.
let aim = { fight: null, foe: null, ally: null };
let retriedAt = 0;        // last time a fight past its kill asked again for the next one
let version = null;      // server build this page was loaded from
let failures = 0;        // polls in a row that didn't reach the server
let warned = null;       // threat the "at the gates" alarm was raised for
let watching = null;     // raid report open in the modal

const $ = (sel, root = document) => root.querySelector(sel);

// Icons are game-icons.net glyphs (CC BY 3.0) from one sprite, tinted per tier or material.
const glyph = (name, tint) => `<svg class="gi" style="color:${tint}" aria-hidden="true"><use href="/static/icons.svg#${name}"></use></svg>`;
// A player's banner: field and trim colours, with their emblem on it.
const crest = (look, h = 26) => look ? `<svg class="crest" width="${Math.round(h * 0.8)}" height="${h}" viewBox="0 0 30 38" aria-hidden="true">
  <path d="M2 2h26v24l-13 10L2 26z" fill="${look.field}" stroke="${look.trim}" stroke-width="2.5"></path>
  ${look.emblem ? `<use href="/static/icons.svg#${look.emblem}" x="6" y="6" width="18" height="18" style="color:${look.trim}"></use>` : ""}</svg>` : "";
const titled = (p) => `${crest(p.look)} <b>${esc(p.name)}</b>${p.look?.title ? ` <span class="title">${esc(p.look.title)}</span>` : ""}`;
const COIN = glyph("two-coins", "#e0b04a"), ANY_FOOD = glyph("knife-fork", "#d9c6a0"), FAVOUR = glyph("sparkles", "#b98ce8"), HEART = glyph("hearts", "#e2645c");

function iconise(content) {
  const entries = [...Object.values(content.items), ...content.skills, ...Object.values(content.classes),
    ...Object.values(content.buildings), ...content.prayers, ...content.actions,
    ...Object.values(content.abilities), ...Object.values(content.enemy_abilities)];
  for (const entry of entries) if (entry.glyph) entry.icon = glyph(entry.glyph, entry.tint);
  return content;
}
const esc = (s) => String(s ?? "").replace(/[&<>"']/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" })[c]);
const fmt = (n) => Math.floor(n).toLocaleString("en-GB");
const serverNow = () => Date.now() / 1000 + skew;
const item = (id) => C.items[id] || { name: id, icon: "❔", value: 0 };
const skillOf = (id) => C.skills.find((s) => s.id === id);
const playerName = (uid) => S.players.find((p) => p.id === uid)?.name || uid;

function remember(key, value) {
  try {
    if (value === undefined) return localStorage.getItem("gh." + key);
    localStorage.setItem("gh." + key, value);
  } catch { /* private mode: fine */ }
  return null;
}

// --- server ---------------------------------------------------------------

async function api(path, body) {
  const options = body === undefined ? {} : {
    method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(body),
  };
  const res = await fetch(path, options);
  const data = await res.json().catch(() => ({ error: "The server didn't answer properly" }));
  if (!res.ok) throw new Error(data.error || res.statusText);
  return data;
}

async function act(path, body) {
  try {
    accept(await api(path, body));
  } catch (err) {
    toast(err.message, "bad");
  }
}

async function refresh() {
  if (refreshing) return;
  refreshing = true;
  polledAt = Date.now();
  try {
    accept(await api("/api/state"));
    failures = 0;
  } catch (err) {
    // A deploy restarts the server for a second or two; only speak up if
    // the city stays out of reach.
    if (++failures === 3) toast("Lost contact with the city. Retrying…", "bad");
  } finally {
    refreshing = false;
  }
}

function accept(state) {
  version ??= state.version;
  if (state.version !== version && !document.querySelector("[data-keep]:focus") && $("#modal").hidden && !draft) {
    location.reload();  // a new build was deployed
    return;
  }
  // Someone tagging into your fight (not you tagging into theirs) gets a toast.
  const fightingWith = S?.me && !tagging ? S.me.action?.with || [] : null;
  tagging = false;
  S = state;
  skew = state.now - Date.now() / 1000;
  for (const uid of fightingWith ? state.me?.action?.with || [] : []) {
    if (!fightingWith.includes(uid)) toast(`⚔️ ${playerName(uid)} joined the fight`, "good");
  }
  if (state.summary) showSummary(state.summary);
  orderNews(state);
  const ev = state.upcoming;
  if (ev?.at_gates && warned !== ev.id) {
    warned = ev.id;
    toast(ev.kind === "dragon" ? "🐉 The dragon is overhead!" : "⚔️ Raiders at the gates!", "bad");
  }
  render();
  showThreat();
}

// --- time -----------------------------------------------------------------

function dur(seconds) {
  if (seconds > 0 && seconds < 10) return `${+seconds.toFixed(1)}s`;
  seconds = Math.max(0, Math.round(seconds));
  const d = Math.floor(seconds / 86400), h = Math.floor(seconds % 86400 / 3600);
  const m = Math.floor(seconds % 3600 / 60), s = seconds % 60;
  if (d) return `${d}d ${h}h`;
  if (h) return `${h}h ${m}m`;
  if (m) return `${m}m ${s}s`;
  return `${s}s`;
}

function clock(t) {
  return new Date((t - skew) * 1000).toLocaleString("en-GB", { weekday: "short", hour: "2-digit", minute: "2-digit" });
}

// Coarse on purpose: the markup stays the same between polls (see setHtml).
function ago(t) {
  const s = serverNow() - t;
  if (s < 60) return "just now";
  if (s < 3600) return `${Math.floor(s / 60)}m ago`;
  if (s < 86400) return `${Math.floor(s / 3600)}h ago`;
  return `${Math.floor(s / 86400)}d ago`;
}

// A live "3h 12m" until `t`, filled in and kept current by animate().
const countdown = (t) => `<span data-countdown="${t}"></span>`;

// --- toasts & summaries ---------------------------------------------------

function toast(text, kind = "") {
  const el = document.createElement("div");
  el.className = "toast " + kind;
  el.textContent = text;
  $("#toasts").append(el);
  setTimeout(() => el.remove(), kind === "level" ? 6000 : 3500);
  const keep = matchMedia("(max-width: 900px)").matches ? 2 : 4;
  while ($("#toasts").children.length > keep) $("#toasts").firstChild.remove();
}

function showSummary(sum) {
  if (!sum.done && !sum.stopped && !sum.levels.length) return;
  if (sum.done >= SUMMARY_MODAL_AT) return awayModal(sum);
  const got = Object.entries(sum.items).map(([id, q]) => `+${fmt(q)} ${item(id).name}`);
  if (sum.gold) got.push(`+${fmt(sum.gold)} gold`);
  if (got.length) toast(got.join("  ·  "), "good");
  const eaten = Object.entries(sum.eaten || {});
  if (eaten.length) toast(`Ate ${eaten.map(([id, q]) => `${fmt(q)} ${item(id).name.toLowerCase()}`).join(", ")}`);
  if (sum.lucky) toast(sum.lucky === 1 ? "✨ Double yield!" : `✨ ${sum.lucky} double yields!`, "level");
  const spilled = Object.entries(sum.overflow);
  if (spilled.length) toast(`📦 Bank full: ${spilled.map(([id, q]) => `${fmt(q)} ${item(id).name.toLowerCase()}`).join(", ")} went to the city`);
  const sold = Object.entries(sum.sold || {});
  if (sold.length) toast(`📦 Bank full: sold ${sold.map(([id, q]) => `${fmt(q)} ${item(id).name.toLowerCase()}`).join(", ")} for ${fmt(sum.sold_gold)} gold`);
  for (const [skill, level] of sum.levels) toast(`🎉 ${skillOf(skill).name} level ${level}!`, "level");
  if (sum.stopped) toast(`Stopped: ${sum.stopped}`, "bad");
  for (const id of sum.potion_out || []) toast(`🧪 Your ${item(id).name.toLowerCase()} ran out`, "bad");
  for (const id of Object.keys(sum.potions_drunk || {})) toast(`🧪 Drank another ${item(id).name.toLowerCase()}`);
  if (sum.prayer_out) toast("🙏 Out of prayer points", "bad");
  if (sum.second_wind) toast("🌬️ Second Wind! Back to half HP", "level");
  if (sum.resumed) toast(`Back to ${C.actions.find((x) => x.id === sum.resumed).name.toLowerCase()}`);
}

function awayModal(sum) {
  const items = Object.entries(sum.items).map(([id, q]) => `<li>${item(id).icon} ${fmt(q)} ${esc(item(id).name)}</li>`).join("");
  const xp = Object.entries(sum.xp).map(([id, q]) => `<li>${skillOf(id).icon} ${fmt(q)} ${esc(skillOf(id).name)} XP</li>`).join("");
  const levels = sum.levels.map(([id, l]) => `<li>🎉 ${esc(skillOf(id).name)} reached level ${l}</li>`).join("");
  const spilled = Object.entries(sum.overflow).map(([id, q]) => `<li>${item(id).icon} ${fmt(q)} ${esc(item(id).name)}</li>`).join("");
  const sold = Object.entries(sum.sold || {}).map(([id, q]) => `<li>${item(id).icon} ${fmt(q)} ${esc(item(id).name)}</li>`).join("");
  openModal(`
    <h2>While you were away</h2>
    <p class="muted">You completed ${fmt(sum.done)} actions${sum.wins || sum.losses ? ` (${sum.wins} fights won, ${sum.losses} lost)` : ""}.</p>
    ${Object.keys(sum.with || {}).length ? `<p class="muted small">⚔️ ${Object.entries(sum.with).map(([name, n]) => `${fmt(n)} with ${esc(name)}`).join(" · ")}</p>` : ""}
    ${Object.keys(sum.eaten || {}).length ? `<p class="muted small">Took ${fmt(sum.damage)} damage and ate ${Object.entries(sum.eaten).map(([id, q]) => `${fmt(q)} ${esc(item(id).name.toLowerCase())}`).join(", ")}.</p>` : ""}
    ${Object.keys(sum.used || {}).length ? `<p class="muted small">Used ${Object.entries(sum.used).map(([id, q]) => `${fmt(q)} ${esc(item(id).name.toLowerCase())}`).join(", ")}.</p>` : ""}
    ${items ? `<ul>${items}</ul>` : ""}
    ${sum.gold ? `<p class="gold">+${fmt(sum.gold)} gold</p>` : ""}
    ${xp ? `<ul>${xp}</ul>` : ""}
    ${levels ? `<ul>${levels}</ul>` : ""}
    ${sold ? `<p class="muted small">Bank full, sold for ${fmt(sum.sold_gold)} gold:</p><ul>${sold}</ul>` : ""}
    ${spilled ? `<p class="muted small">Bank full, sent to the stockpile:</p><ul>${spilled}</ul>` : ""}
    ${sum.stopped ? `<p class="tag bad">Stopped: ${esc(sum.stopped)}</p>` : ""}
    <p><button class="btn primary" data-close>Back to work</button></p>`);
}

// A raid or dragon attack, played out for everyone once: the clash, then the report.
function showThreat() {
  const t = S.threat_report;
  if (!t || watching === t.id || !$("#modal").hidden) return;
  watching = t.id;
  const r = t.report, dragon = t.kind === "dragon", won = r.title.startsWith("Victory");
  const foe = dragon ? "The dragon" : "Raiders";
  openModal(`
    <div class="battle">
      <h2>${dragon ? "🐉 The dragon attacks!" : "⚔️ The raiders attack!"}</h2>
      <div class="battle-side"><span><b>Our defence</b> <span class="muted">${fmt(r.defence)}</span></span>
        <div class="bar thick hp you"><span data-battle="us" style="width:100%"></span></div></div>
      <div class="battle-side"><span><b>${foe}</b> <span class="muted">${fmt(r.attack)}</span></span>
        <div class="bar thick hp"><span data-battle="them" style="width:100%"></span></div></div>
      <ul class="fight-log battle-log" data-battle="log"><li class="muted">${dragon ? "A shadow falls over the walls…" : "Horns sound from the walls…"}</li></ul>
      <div data-battle="report" hidden>
        <div class="battle-result ${won ? "win" : "loss"}">${esc(r.title)}</div>
        ${r.garrison.length ? `<p class="small muted">Garrison: ${r.garrison.map((g) => esc(g.name)).join(", ")}</p>` : ""}
        ${r.lines.map((l) => `<p class="small">${esc(l)}</p>`).join("")}
      </div>
      <p class="btns"><button class="btn" data-battle-skip>Skip</button>
        <button class="btn primary" data-raid-seen="${t.id}" hidden>Close</button></p>
    </div>`);
  playBattle(t.id, r.defence, r.attack, won, dragon);
}

// Pure theatre: the outcome is already decided. The loser's bar runs out; the winner's ends
// as high as the gap between the two sides.
function playBattle(id, us, them, won, dragon) {
  const steps = 10, every = 900;
  let seed = id * 9301 + 49297;
  const rand = () => (seed = (seed * 9301 + 49297) % 233280) / 233280;
  const weights = Array.from({ length: steps }, () => 0.5 + rand());
  const total = weights.reduce((a, b) => a + b, 0);
  const loserEnd = 0, winnerEnd = Math.max(0.1, 1 - Math.min(us, them) / Math.max(us, them, 1));
  const ours = won ? winnerEnd : loserEnd, theirs = won ? loserEnd : winnerEnd;
  const lines = {
    good: dragon ? ["Arrows find the dragon's wing", "The ballista bolt strikes home", "Spears drive it back from the walls"]
      : ["Arrows rain down on the raiders", "The walls hold", "The militia drives them back", "A charge breaks their line"],
    bad: dragon ? ["Fire sweeps the rooftops", "Its claws tear at the gate", "The defenders scatter from its breath"]
      : ["Raiders scale the walls", "The gate shudders under the ram", "A volley cuts down defenders"],
  };
  let step = 0, done = 0, said = "";
  const finish = () => {
    clearInterval(timer);
    const box = $(".battle");
    if (!box) return;
    $('[data-battle="us"]', box).style.width = `${ours * 100}%`;
    $('[data-battle="them"]', box).style.width = `${theirs * 100}%`;
    $('[data-battle="report"]', box).hidden = false;
    $("[data-battle-skip]", box).hidden = true;
    $("[data-raid-seen]", box).hidden = false;
  };
  const timer = setInterval(() => {
    const box = $(".battle");
    if (!box) return clearInterval(timer);
    if (step >= steps) return finish();
    done += weights[step] / total;
    step++;
    $('[data-battle="us"]', box).style.width = `${(1 - (1 - ours) * done) * 100}%`;
    $('[data-battle="them"]', box).style.width = `${(1 - (1 - theirs) * done) * 100}%`;
    // Each clash goes the way of the side that ends up ahead, now and then the other.
    const ahead = rand() < 0.7 ? won : !won;
    const pool = (ahead ? lines.good : lines.bad).filter((l) => l !== said);
    const log = $('[data-battle="log"]', box);
    said = pool[Math.floor(rand() * pool.length)];
    log.insertAdjacentHTML("afterbegin", `<li class="${ahead ? "good" : "bad"}">${said}</li>`);
    while (log.children.length > 4) log.lastElementChild.remove();
  }, every);
  playBattle.finish = finish;
}

function openModal(html) {
  const modal = $("#modal");
  modal.innerHTML = `<div class="modal-box">${html}</div>`;
  modal.hidden = false;
}

// --- rendering ------------------------------------------------------------

function render() {
  const kept = {};
  for (const el of document.querySelectorAll("[data-keep]")) kept[el.dataset.keep] = el.value;
  const focus = document.activeElement?.dataset?.keep;

  if (page === "notes") remember("notes", notesKey());
  setHtml($("#side"), S.me ? sidebar() : `<div class="brand"><img src="/static/icon.svg" alt="">Guildhall <small>beta</small></div>${S.dev ? devbar() : ""}`);
  setHtml($("#top"), topbar());
  // The fires keep burning through a re-render: put the old canvases back in place of the new ones.
  const burning = [...document.querySelectorAll("canvas[data-flame]")];
  setHtml($("#main"), S.me ? pageHtml() : register());
  for (const old of burning) {
    const fresh = document.querySelector(`canvas[data-flame="${old.dataset.flame}"]`);
    if (fresh && fresh !== old) fresh.replaceWith(old);
  }
  fireTextAt = 0;  // and fill in their bars and times straight away

  for (const [key, value] of Object.entries(kept)) {
    const el = document.querySelector(`[data-keep="${key}"]`);
    if (el) el.value = value;
  }
  if (focus) document.querySelector(`[data-keep="${focus}"]`)?.focus();
  const msgs = $(".msgs");
  if (msgs) msgs.scrollTop = msgs.scrollHeight;
  animate();
}

// Only touch the DOM when the markup changed. Replacing an element mid-swipe
// cancels the swipe on iOS, and polls arrive every few seconds.
function setHtml(el, html) {
  if (el.dataset.html === html) return;
  const scroll = el.scrollTop;
  el.innerHTML = html;
  el.dataset.html = html;
  el.scrollTop = scroll;
}

function setMenu(open) {
  $("#app").classList.toggle("open", open);
  document.documentElement.classList.toggle("menu-open", open);
}

function nav(id, icon, label, meta = "", extra = "", tip = "") {
  return `<button class="nav ${page === id ? "on" : ""}" data-nav="${id}"${tip ? ` title="${esc(tip)}"` : ""}><span class="ic">${icon}</span><span class="label">${label}</span>${extra}<span class="meta">${meta}</span></button>`;
}

function skillNav(skill, me, doing) {
  const busy = doing?.skill === skill.id ? `<span class="dot"></span>` : "";
  const fire = fireOfSkill(skill.id), heat = fire ? fireNow(fire).heat : -1;
  const flame = heat >= 0 ? `<span class="fdot" style="--c:${flameTint(heat)}"></span>` : "";
  const low = skill.id === "firekeeping" && Object.keys(C.fires).some((id) => fireNow(id).low) ? `<span class="alert"></span>` : "";
  const tip = heat >= 0 ? `${C.fires[fire].name}: ${C.flames[heat][0]}` : low ? "A fire is low" : "";
  return nav("skill:" + skill.id, skill.icon, skill.name, `${me.levels[skill.id]}`, flame + busy + low, tip);
}

function pinnedNav(me, doing) {
  const pinned = C.skills.filter((s) => me.pinned.includes(s.id) && (!s.class || s.class === me.cls));
  return pinned.length ? `<div class="navhead">📌 Pinned</div>${pinned.map((s) => skillNav(s, me, doing)).join("")}` : "";
}

function sidebar() {
  const me = S.me, cls = C.classes[me.cls];
  const doing = me.action && C.actions.find((a) => a.id === me.action.id);
  const raid = S.upcoming?.kind === "raid";
  const takeable = (S.orders || []).filter(canTake).length;
  let html = `
    <div class="brand"><img src="/static/icon.svg" alt="">Guildhall <small>beta</small></div>
    <div class="me">
      <div class="who">${esc(me.name)}</div>
      <div class="cls">${cls.icon} ${cls.name} · ${HEART} <span data-live-hp>${fmt(me.hp)}</span>/${me.max_hp}</div>
      <div class="purse"><span class="gold" title="Gold">${COIN} ${fmt(me.gold)}</span><span class="favour" title="Favour: earned by donating">${FAVOUR} ${fmt(me.favour)}</span></div>
    </div>
    ${pinnedNav(me, doing)}
    <div class="navhead">City</div>
    ${nav("town", "🏘️", "Town square", `${S.city.population}`, "", `Population ${S.city.population}`)}
    ${nav("council", "📜", "Council & threats", "", raid ? `<span class="alert"></span>` : "", raid ? "A threat is coming" : "")}
    ${nav("orders", ORDER_ICON(), "Work orders", "", takeable ? `<span class="badge">${takeable}</span>` : "", takeable ? `${takeable} for you` : "")}
    ${nav("board", "💬", "Town board")}
    ${nav("roster", "👥", "Guild roster", `${S.players.length}`, "", `${S.players.length} ${S.players.length === 1 ? "adventurer" : "adventurers"}`)}
    ${nav("notes", "📰", "Patch notes", "", notesUnread() ? `<span class="badge">new</span>` : "", notesUnread() ? `What's new: ${C.patch_notes[0].title}` : "")}
    <div class="navhead">You</div>
    ${nav("character", cls.icon, "Character", `${skillOf("combat").icon} ${me.levels.combat}`, "", `Combat level ${me.levels.combat}`)}
    ${nav("bank", "🏦", "Bank", `${me.slots_used}/${me.slots}`, "", `${me.slots_used} of ${me.slots} bank slots used`)}`;
  let group = null;
  for (const skill of C.skills) {
    if (skill.class && skill.class !== me.cls) continue;
    if (skill.group !== group) {
      group = skill.group;
      html += `<div class="navhead">${group}</div>`;
    }
    html += skillNav(skill, me, doing);
  }
  return html + (S.dev ? devbar() : "")
    + `<p class="credit">Icons by Lorc, Delapouite and others at <a href="https://game-icons.net" target="_blank" rel="noopener">game-icons.net</a>, CC BY 3.0</p>`;
}

function devbar() {
  return `<div class="devbar"><b>Dev mode</b> · playing as ${esc(S.uid)}
    <form data-form="dev-user"><input type="text" data-keep="dev-user" placeholder="switch user"><button class="btn sm">Go</button></form>
    <div class="row">
      <button class="btn sm" data-dev-advance="1">+1h</button>
      <button class="btn sm" data-dev-advance="8">+8h</button>
      <button class="btn sm" data-dev-advance="24">+1d</button>
      <button class="btn sm" data-dev-event>Threat now</button>
      <button class="btn sm" data-dev-happen="fortune">Fortune</button>
      <button class="btn sm" data-dev-happen="hardship">Hardship</button>
      <button class="btn sm" data-dev-happen="minor">Problem</button>
    </div></div>`;
}

const TITLES = { town: "Town square", council: "Council & threats", orders: "Work orders", board: "Town board", roster: "Guild roster", notes: "Patch notes", bank: "Bank", character: "Character" };

function topbar() {
  let title = TITLES[page] || "Guildhall";
  if (page.startsWith("skill:")) title = skillOf(page.slice(6))?.name || title;
  if (page.startsWith("character:")) title = S.players.find((p) => p.id === page.slice(10))?.name || "Character";
  if (!S.me) title = "Welcome to Guildhall";
  let chips = "";
  if (S.me?.action) {
    const action = C.actions.find((a) => a.id === (S.me.action.growing || S.me.action.id));
    chips += `<button class="chip act" data-nav="skill:${action.skill}">${skillOf(action.skill).icon} <span class="label">${esc(action.name)}</span><span class="bar mini ${S.me.action.fight ? "foe" : ""}"><span data-progress></span></span></button>`;
  } else if (S.me) {
    chips += `<span class="chip muted">Idle${S.me.stopped ? ` · ${esc(S.me.stopped)}` : ""}</span>`;
  }
  const fires = S.me ? Object.keys(C.fires).map((id) => [id, fireNow(id)]) : [];
  if (fires.some(([, n]) => n.heat >= 0)) {
    const tip = fires.map(([id, n]) => `${C.fires[id].name}: ${n.heat >= 0 ? `${C.flames[n.heat][0]}, ${dur(n.left / n.speed)}` : "out"}`).join("\n");
    chips += `<button class="chip fire-pips" data-nav="skill:firekeeping" title="${esc(tip)}">${fires.map(([, n]) =>
      `<i class="pip ${n.heat >= 0 ? "lit" : ""} ${n.low ? "low" : ""}" style="--c:${flameTint(n.heat)}"></i>`).join("")}</button>`;
  }
  const w = S.happenings?.weather;
  if (w) chips += `<button class="chip" data-nav="town" title="${esc(weatherTip(w))}">${w.icon}</button>`;
  if (S.upcoming) chips += `<button class="chip ${["raid", "dragon"].includes(S.upcoming.kind) ? "threat" : ""} ${S.upcoming.at_gates ? "alarm" : ""}" data-nav="council">${eventIcon(S.upcoming.kind)} ${S.upcoming.at_gates ? `<span class="label">${S.upcoming.kind === "dragon" ? "Overhead" : "At the gates"}</span> ` : ""}${eventWhen(S.upcoming, true)}</button>`;
  return `<button class="menu-btn" data-menu aria-label="Menu">☰</button><h1>${esc(title)}</h1>${chips}${S.me ? trackedBar() : ""}`;
}

// The recipe you're after, under the top bar on every page: have / need for each input.
function trackedBar() {
  const me = S.me, a = me.tracked && C.actions.find((x) => x.id === me.tracked);
  if (!a) return "";
  const ready = Object.entries(me.fuelled?.[a.id] || a.inputs).every(([id, q]) => (me.bank[id] || 0) >= q);
  const go = !me.blocked[a.id] && me.action?.id !== a.id;
  return `<div class="tracked ${ready ? "ready" : ""}">
    <button class="tracked-name" data-nav="skill:${a.skill}" data-nav-group="${esc(a.group || "")}" title="${esc(a.name)}">${a.icon}<span class="label">${esc(a.name)}</span></button>
    <span class="io">${inputChips(a)}</span>
    ${go ? `<button class="btn sm primary" data-start="${a.id}">Start</button>` : ""}
    <button class="pin on" data-track="${a.id}" title="Untrack">📌</button>
  </div>`;
}

function eventIcon(kind) {
  return { raid: "⚔️", dragon: "🐉", merchant: "🐪", refugees: "🧳" }[kind] || "❗";
}

function eventWhen(ev, short = false) {
  if (ev.exact) return short ? `in ${countdown(ev.exact)}` : `${clock(ev.exact)} (in ${countdown(ev.exact)})`;
  if (short) return ev.earliest <= serverNow() + 60 ? `within ${countdown(ev.latest)}` : `in ${countdown(ev.earliest)}–${countdown(ev.latest)}`;
  return `between ${clock(ev.earliest)} and ${clock(ev.latest)}`;
}

function pageHtml() {
  if (S.me.repick) return repickPage();
  if (page.startsWith("skill:")) {
    const id = page.slice(6);
    const skill = skillOf(id);
    if (skill && (!skill.class || skill.class === S.me.cls)) return skillPage(id);
    page = "town";
  }
  if (page.startsWith("character:")) return characterSheet(page.slice(10));
  if (page === "character") return characterSheet(S.uid);
  return ({ town, council, orders, board, roster, notes, bank }[page] || town)();
}

// Recipe input as "have / need"; without `have`, just the quantity.
function itemChip(id, qty, have) {
  const short = have !== undefined && have < qty;
  return `<span class="item-chip ${short ? "short" : ""}" title="${esc([item(id).name, itemStats(id)].filter(Boolean).join(": "))}">${item(id).icon} ${have !== undefined ? `${fmt(have)} <span class="have">/ ${fmt(qty)}</span>` : fmt(qty)}</span>`;
}

// A recipe's inputs as "have / need", with the fuel a lit fire pays struck through.
function inputChips(a) {
  const me = S.me, ins = me.fuelled?.[a.id] || a.inputs;
  return Object.entries(a.inputs).map(([id, q]) => {
    const need = ins[id] || 0, have = me.bank[id] || 0;
    if (need === q) return itemChip(id, q, have);
    const tip = `title="${esc(`${item(id).name}: the ${C.fires[a.fire].name.toLowerCase()} pays ${q - need}`)}"`;
    return need ? `<span class="item-chip ${have < need ? "short" : ""}" ${tip}>${item(id).icon} ${fmt(have)} <span class="have">/ <s>${q}</s> ${need}</span></span>`
      : `<span class="item-chip paid" ${tip}>${item(id).icon} <s>${q}</s></span>`;
  }).join("");
}

// Progress towards a building cost: "have / need".
function costChip(icon, name, need, have) {
  return `<span class="item-chip ${have < need ? "short" : ""}" title="${esc(`${name}: ${have < need ? `${fmt(need - have)} more needed` : "done"}`)}">${icon} ${fmt(have)} <span class="have">/ ${fmt(need)}</span></span>`;
}

// What the city still needs of each item from building funds, fittings and happenings, after the stockpile.
// Recomputed once per state.
let needsState = null, needsCache = {};
function fundNeeds() {
  if (needsState === S) return needsCache;
  const city = S.city, missing = {}, why = {};
  const add = (id, short, line) => { missing[id] = (missing[id] || 0) + short; (why[id] ||= []).push(line); };
  for (const [key, b] of Object.entries(city.buildings)) {
    const spec = C.buildings[key];
    if (b.status === "funding") for (const [id, need] of Object.entries(b.target)) {
      const short = b.missing[id] || 0;
      if (id !== "gold" && short) add(id, short, `${spec.name} · ${fmt(need - short)} / ${fmt(need)}`);
    }
    for (const f of C.fittings) {
      if (f.building === key && b.level >= f.level && !b.fittings.includes(f.id)) add(f.id, 1, `${spec.name} · 0 / 1`);
    }
  }
  for (const p of S.happenings.problems) for (const [id, need] of Object.entries(p.need || {})) {
    const short = p.missing[id] || 0;
    if (short) add(id, short, `${p.name} · ${fmt(need - short)} / ${fmt(need)}`);
  }
  needsCache = {};
  for (const [id, short] of Object.entries(missing)) {
    const stock = city.stockpile[id] || 0;
    if (short > stock) needsCache[id] = { qty: short - stock, why: stock ? [...why[id], `Stockpile ${fmt(stock)}`] : why[id] };
  }
  needsState = S;
  return needsCache;
}

// How many of an item the city still needs, with a have / need line per reason, or null.
function cityNeed(id) {
  const it = item(id), fund = fundNeeds()[id];
  let qty = fund?.qty || 0;
  const why = [...(fund?.why || [])];
  for (const r of S.upcoming?.requests || []) {
    const short = r.want - r.have;
    const counts = r.any === "food" ? it.food : r.any ? it.slot === r.any : id === r.item;
    if (short <= 0 || !counts) continue;
    qty += r.any === "food" ? Math.ceil(short / it.food) : short;
    why.push(`Council: ${r.label} · ${fmt(r.have)} / ${fmt(r.want)}`);
  }
  return qty ? { qty, why } : null;
}

function needTag(id) {
  const n = cityNeed(id);
  return n ? `<span class="tag gold" title="${esc(`City needs ${fmt(n.qty)} ${item(id).name}\n${n.why.join("\n")}`)}">🏘️ ${fmt(n.qty)}</span>` : "";
}

// --- skill pages ----------------------------------------------------------

function skillPage(id) {
  const me = S.me, skill = skillOf(id), level = me.levels[id], xp = me.xp[id];
  const floor = C.xp_table[level], ceil = C.xp_table[level + 1];
  const pct = ceil ? (xp - floor) / (ceil - floor) * 100 : 100;
  const cls = C.classes[me.cls];
  const fast = cls.fast.includes(id);
  let html = `
    <div class="panel"><div class="skill-head">
      <div class="big">${skill.icon}</div>
      <div class="info">
        <h2>${skill.name} <button class="pin ${me.pinned.includes(id) ? "on" : ""}" data-pin="${id}" title="${me.pinned.includes(id) ? "Unpin" : "Pin"}">📌</button></h2>
        <div class="lv">Level ${level} / 99 · ${fmt(xp)}${ceil ? ` / ${fmt(ceil)}` : ""} XP</div>
        <div class="bar xp thick"><span style="width:${pct}%"></span></div>
      </div>
      ${fast ? `<span class="tag gold">${cls.icon} ${cls.name} bonus</span>` : ""}
    </div></div>`;
  if (id === "combat") html += combatFrame();
  if (id === "prayer") html += prayerPanel();
  if (id === "construction") html += S.city.construction ? siteBanner()
    : `<div class="panel muted">Nothing under construction.</div>`;
  if (id === "farming" && me.cls === "homesteader") html += plotsPanel();
  html += skillGear(id);
  if (id === "firekeeping") return html + firekeepingPage();
  html += fireBand(id);
  if (id === "reconnaissance") html += `<div class="panel small muted">Raises intel on the coming threat. Higher levels open as it nears.</div>`;
  html += skillHappenings(id);
  const wanted = (S.orders || []).filter((o) => o.skill === id && canTake(o));
  if (wanted.length) html += `<div class="banner good happening-banner"><span class="banner-ico">${ORDER_ICON()}</span>
    <div class="grow"><b>${wanted.length} work order${wanted.length > 1 ? "s" : ""}</b>
    <div class="small">${wanted.map((o) => esc(item(o.item).name)).join(" · ")}</div></div>
    <button class="btn" data-nav="orders">Work orders</button></div>`;
  const live = new Set(S.happenings.problems.map((p) => p.kind));
  const listed = C.actions.filter((a) => a.skill === id && (a.special !== "problem" || live.has(a.problem)));
  // Tabs and sections keep their designed order; what's inside each is sorted by the level it needs.
  const groups = [...new Set(listed.map((a) => a.group).filter(Boolean))];
  const actions = [...listed].sort((a, b) => a.level - b.level);
  if (groups.length > 2) {
    // Many groups: one tab each.
    const open = (g) => actions.some((a) => a.group === g && !isLocked(a));
    let current = tabs[id] || remember(`tab.${id}`);
    // Tier ladders open on the highest tier you can work; categories open on the first.
    const ladder = ["smithing", "leatherworking", "tailoring", "herblore", "combat"].includes(id);
    if (!groups.includes(current)) current = (ladder && [...groups].reverse().find(open)) || groups[0];
    const needed = (g) => actions.some((a) => a.group === g && !isLocked(a) && Object.keys(a.outputs).some(cityNeed));
    const bar = groups.map((g) => `<button class="tab ${g === current ? "on" : ""} ${open(g) ? "" : "dim"}" data-tab="${id}" data-group="${esc(g)}">${esc(g)}${needed(g) ? ` <span title="City needs">🏘️</span>` : ""}</button>`).join("");
    // Ungrouped actions (the building site) stay above the tabs.
    const loose = actions.filter((a) => !a.group);
    if (loose.length) html += `<div class="grid" style="margin-bottom:14px">${loose.map(actionCard).join("")}</div>`;
    return html + `<div class="tabs">${bar}</div><div class="grid">${actions.filter((a) => a.group === current).map(actionCard).join("")}</div>`;
  }
  // A few groups: each under its own heading, in the order they first appear.
  let cards = actions.filter((a) => !a.group).map(actionCard).join("");
  for (const g of groups) {
    cards += `<div class="section-title grid-head">${esc(g)}</div>` + actions.filter((a) => a.group === g).map(actionCard).join("");
  }
  return html + `<div class="grid">${cards}</div>`;
}

// Locked: missing a level, class or building, as opposed to just out of materials.
function isLocked(a) {
  const why = S.me.blocked[a.id];
  return Boolean(why && (why.startsWith("Needs") || why.startsWith("Only")));
}

// A homesteader's two plots: one crop 30% faster, or two crops sharing a 20% faster pace.
function plotsPanel() {
  const a = S.me.action, farming = a && C.actions.find((x) => x.id === a.id)?.skill === "farming";
  const name = (id) => esc(C.actions.find((x) => x.id === id).name);
  const status = !farming ? `<span class="muted">Start a crop to plant plot 1.</span>`
    : a.plot2 ? `Plot 1: <b>${name(a.id)}</b> · Plot 2: <b>${name(a.plot2)}</b> <span class="muted">· alternating, 20% faster</span>`
    : `Plot 1: <b>${name(a.id)}</b> · Plot 2: <span class="muted">empty · focused, 30% faster</span>`;
  return `<div class="panel tool-panel"><span>🌱 ${status}</span></div>`;
}

// The skill's active potion, or the ones in the bank that could be drunk for it.
// A skill's potion and tool side by side, each a slot with what you could switch to beside it.
function skillGear(skill) {
  const me = S.me, cards = [];
  const kinds = Object.entries(C.items).filter(([, it]) => it.potion?.skill === skill);
  if (kinds.length) {
    const active = me.potions[skill], it = active && item(active.item);
    const others = kinds.filter(([id]) => me.bank[id] && id !== active?.item).map(([id, p]) =>
      `<button class="doll-slot swap" data-potion="${id}" title="${esc(`${p.name}: ${p.potion.text}`)}">${p.icon}<span class="swap-qty">${fmt(me.bank[id])}</span></button>`).join("");
    cards.push(`<div class="panel gear-card">
      <span class="doll-slot ${it ? "" : "empty"}" title="${esc(it ? `${it.name}: ${it.potion.text}` : "No potion")}">${it ? it.icon : glyph("round-bottom-flask", "#98a1b4")}</span>
      <div class="gear-text">${it ? `<b>${esc(it.name)}</b><span class="muted small">${esc(it.potion.text)} · ${fmt(active.charges)} uses</span>`
        : `<span class="muted">No potion</span>`}</div>
      ${others ? `<div class="swap-grid">${others}</div>` : ""}</div>`);
  }
  for (const [kind, none] of [["tool", "No tool"], ["station", "No station"]]) {
    const slot = `${kind}_${skill}`;
    if (!(slot in me.equip)) continue;
    const id = me.equip[slot], it = id && item(id);
    const others = Object.keys(me.bank).filter((x) => item(x)[kind] === skill).sort((a, b) => item(b).speed - item(a).speed).map((x) => {
      const [s, level] = item(x).req || [], why = s && me.levels[s] < level ? `Needs ${skillOf(s).name.toLowerCase()} ${level}` : "";
      return `<button class="doll-slot swap" data-equip="${x}" ${why ? "disabled" : ""} title="${esc([`${item(x).name}: ${Math.round(item(x).speed * 100)}% faster`, why].filter(Boolean).join(" · "))}">${item(x).icon}</button>`;
    }).join("");
    cards.push(`<div class="panel gear-card">
      <span class="doll-slot ${it ? "" : "empty"}" title="${esc(it ? it.name : none)}">${it ? it.icon : glyph(kind === "tool" ? "toolbox" : "anvil", "#98a1b4")}</span>
      <div class="gear-text">${it ? `<b>${esc(it.name)}</b><span class="muted small">${Math.round(it.speed * 100)}% faster</span>` : `<span class="muted">${none}</span>`}</div>
      ${others || it ? `<div class="swap-grid">${others}${it ? `<button class="doll-slot swap off" data-unequip="${slot}" title="Take it off">${glyph("cancel", "#98a1b4")}</button>` : ""}</div>` : ""}</div>`);
  }
  return cards.length ? `<div class="gear-row">${cards.join("")}</div>` : "";
}

// --- fires ----------------------------------------------------------------
// The guild's shared fires. Between polls the client burns them down itself, the same
// way the server does: the burn shared evenly between everyone's piles, each pile's
// hottest fuel first.

const ROMAN = ["I", "II", "III", "IV", "V", "VI"];
// Core to edge of each flame colour, for the animated fires.
const FLAME_RAMPS = [["#fff3cf", "#ffb54a", "#ff6a2a", "#8a210a"], ["#fffbe6", "#ffe680", "#f2a81f", "#7a4a06"],
  ["#ffffff", "#f6f4ff", "#c9c4e0", "#4d4a66"], ["#eef8ff", "#8fd0ff", "#3485ea", "#10347a"],
  ["#ecfff1", "#8af5ab", "#22b85a", "#0a4a25"], ["#f8efff", "#d6b0ff", "#9150f0", "#3a1474"]];
const STILL = matchMedia("(prefers-reduced-motion: reduce)").matches;
let firewood = Number(remember("firewood") ?? -1);  // the log tier picked for tending
const flames = {};                                   // fire -> its particles, kept across renders
let fireTextAt = 0;

const fireOfSkill = (skill) => Object.keys(C.fires).find((id) => C.fires[id].skill === skill);
const flameTint = (tier) => tier >= 0 ? C.flames[tier][1] : "#5d626b";
const tendLevel = (tier) => C.actions.find((a) => a.id === `tend_forge_${C.firewood[tier]}`).level;

function fireNow(id) {
  const f = S.city.fires[id], fuel = f.fuel.map((c) => ({ ...c }));
  const hottest = (by) => fuel.filter((c) => c.by === by).reduce((best, c) => (c.tier > best.tier ? c : best));
  let burn = Math.max(0, serverNow() - f.at) * f.speed;
  while (burn > 1e-9 && fuel.length) {
    const heads = [...new Set(fuel.map((c) => c.by))].map(hottest);
    const step = Math.min(burn, Math.min(...heads.map((c) => c.left)) * heads.length);
    for (const c of heads) {
      c.left -= step / heads.length;
      if (c.left <= 1e-6) fuel.splice(fuel.indexOf(c), 1);
    }
    burn -= step;
  }
  const heat = fuel.reduce((h, c) => Math.max(h, c.tier), -1), left = fuel.reduce((sum, c) => sum + c.left, 0);
  const mine = fuel.filter((c) => c.by === S.uid);
  return { fuel, mine, heat, left, low: heat >= 0 && left < C.fire_low, speed: f.speed };
}

function pickFirewood() {
  const me = S.me, open = C.firewood.map((_, t) => t).filter((t) => me.levels.firekeeping >= tendLevel(t));
  if (open.includes(firewood)) return firewood;
  return [...open].reverse().find((t) => me.bank[C.firewood[t]]) ?? 0;
}

function firekeepingPage() {
  const me = S.me, fk = me.firekeeping, pick = pickFirewood(), speed = Object.values(S.city.fires)[0].speed;
  const perLog = (tier) => +(C.tend_xp[tier] * fk.minutes).toFixed(1);
  const logs = C.firewood.map((log, tier) => {
    const level = tendLevel(tier), locked = me.levels.firekeeping < level;
    const tip = `${item(log).name} · ${C.flames[tier][0]} · ${locked ? `Needs level ${level}` : `${perLog(tier)} XP a log`}`;
    return `<button class="logbtn ${tier === pick ? "on" : ""}" style="--c:${flameTint(tier)}" data-firewood="${tier}" ${locked ? "disabled" : ""} title="${esc(tip)}"><span class="swatch"></span>${item(log).icon} ${fmt(me.bank[log] || 0)}</button>`;
  }).join("");
  return `<div class="panel fire-tools"><div class="logs">${logs}</div>
      <span class="tag" title="Fire and XP per log">${glyph("stopwatch", "#98a1b4")} ${dur(fk.minutes * 60 / speed)} · ${perLog(pick)} XP</span>
      <span class="tag" title="Most fuel you can bank in a fire">${glyph("campfire", "#98a1b4")} ${dur(fk.bank * 60 / speed)}</span></div>
    <div class="fire-grid">${Object.keys(C.fires).map((id) => fireCard(id, pick)).join("")}</div>`;
}

function fireCard(id, pick) {
  const me = S.me, spec = C.fires[id], f = S.city.fires[id], n = fireNow(id), skill = skillOf(spec.skill);
  const mine = me.action?.id.startsWith(`tend_${id}_`);
  const start = `tend_${id}_${C.firewood[pick]}`, why = mine ? "" : me.blocked[start];
  const crafting = f.users.filter((u) => !u.action.startsWith("tend_"));
  const doing = (u) => C.actions.find((a) => a.id === u.action);
  const piles = [...new Set(f.fuel.map((c) => c.by))];
  const keepers = piles.length ? `<span title="${esc(piles.map(playerName).join("\n"))}">🔥 ${piles.length}</span>` : "";
  const who = crafting.length
    ? `<span title="${esc(crafting.map((u) => `${u.name}: ${doing(u).name}`).join("\n"))}">👤 ${crafting.length} ${crafting.map((u) => doing(u).icon).join("")}</span>`
    : `<span class="muted">👤 0</span>`;
  return `<div class="fire-card ${n.heat >= 0 ? "lit" : "out"} ${mine ? "active" : ""}" style="--c:${flameTint(n.heat)}">
    <div class="fire-stage"><canvas data-flame="${id}"></canvas><span class="fire-state" data-fire-state="${id}"></span></div>
    <div class="fire-body">
      <div class="fire-head">${glyph(spec.glyph, "#e7e9f0")}<b>${esc(spec.name)}</b><span class="muted small">${skill.icon} ${esc(skill.name)}</span></div>
      <div class="fire-line"><span data-fire-left="${id}" title="Until it's out"></span><span data-fire-covers="${id}"></span></div>
      <div class="fuel" data-fuel="${id}" title="Your pile"></div>
      <div class="fire-line small"><span data-fire-mine="${id}" title="Your pile / the most you can bank"></span><span title="Logs this fire has paid for">🪵 ${fmt(f.saved || 0)}</span></div>
      <div class="fire-line small">${who}${keepers}</div>
      ${mine ? `<div class="bar thick"><span data-progress></span></div>` : ""}
      <div class="foot"><span class="why">${esc(why || "")}</span>${mine
        ? `<button class="btn danger" data-stop>Stop</button>`
        : `<button class="btn primary" data-start="${start}" ${why ? "disabled" : ""}>Tend</button>`}</div>
    </div></div>`;
}

// The fire behind a crafting skill, at the top of its page.
function fireBand(skill) {
  const id = fireOfSkill(skill);
  if (!id) return "";
  const n = fireNow(id), spec = C.fires[id], lit = n.heat >= 0;
  const pays = lit && `Pays the log for tier ${ROMAN[n.heat]} and below${id === "forge" ? ", and a coal" : ""}`;
  return `<div class="fire-band ${lit ? "lit" : ""}" style="--c:${flameTint(n.heat)}">
    ${glyph(spec.glyph, lit ? flameTint(n.heat) : "#98a1b4")}
    <div class="grow"><b>${esc(spec.name)}</b> <span class="muted small">${lit ? `${C.flames[n.heat][0]} · <span data-fire-time="${id}"></span>` : "Out"}</span></div>
    ${lit ? `<span class="tag flame" title="${esc(pays)}">🪵 ≤ ${ROMAN[n.heat]}</span>` : ""}
    <button class="btn sm" data-nav="skill:firekeeping">🔥 Tend</button>
  </div>`;
}

function animateFires() {
  if (!S?.me || !S.city?.fires) return;
  const text = performance.now() - fireTextAt > 250;
  if (text) fireTextAt = performance.now();
  for (const id of Object.keys(C.fires)) {
    const canvas = document.querySelector(`[data-flame="${id}"]`);
    if (!canvas && !text) continue;
    const n = fireNow(id);
    if (canvas) drawFlame(canvas, id, n);
    if (!text) continue;
    const set = (sel, html) => { for (const el of document.querySelectorAll(sel)) if (el.dataset.v !== html) { el.innerHTML = html; el.dataset.v = html; } };
    const bank = S.me.firekeeping.bank * 60, mine = n.mine.reduce((sum, c) => sum + c.left, 0);
    const tiers = C.flames.map((_, t) => n.mine.filter((c) => c.tier === t).reduce((sum, c) => sum + c.left, 0));
    set(`[data-fuel="${id}"]`, tiers.map((left, t) => left ? `<i style="--c:${flameTint(t)};width:${(left / Math.max(bank, mine) * 100).toFixed(2)}%"></i>` : "").join(""));
    set(`[data-fire-left="${id}"]`, n.heat >= 0 ? `🔥 <b>${dur(n.left / n.speed)}</b>` : "");
    set(`[data-fire-mine="${id}"]`, `You ${dur(mine / n.speed)} / ${dur(bank / n.speed)}`);
    set(`[data-fire-time="${id}"]`, dur(n.left / n.speed));
    set(`[data-fire-covers="${id}"]`, n.heat >= 0 ? `<span class="tag flame" style="--c:${flameTint(n.heat)}" title="Pays the log for tier ${ROMAN[n.heat]} and below">🪵 ≤ ${ROMAN[n.heat]}</span>` : "");
    set(`[data-fire-state="${id}"]`, n.heat < 0 ? "Out" : n.low ? "Low" : C.flames[n.heat][0]);
    for (const el of document.querySelectorAll(`[data-fire-state="${id}"]`)) el.className = `fire-state ${n.heat < 0 ? "out" : n.low ? "low" : ""}`;
  }
}

function rampAt(ramp, t) {
  const s = t * (ramp.length - 1), i = Math.min(Math.floor(s), ramp.length - 2), f = s - i;
  const rgb = (hex) => [1, 3, 5].map((k) => parseInt(hex.slice(k, k + 2), 16));
  const a = rgb(ramp[i]), b = rgb(ramp[i + 1]);
  return `rgb(${a.map((v, k) => Math.round(v + (b[k] - v) * f)).join(",")})`;
}

// A fire on a canvas: rising flame particles in its colour, taller with more fuel;
// smoke when it's low, a grey bed of ash when it's out.
function drawFlame(cv, id, n) {
  const st = flames[id] ||= { parts: [], at: performance.now() };
  const t = performance.now(), dt = Math.min(0.05, (t - st.at) / 1000);
  st.at = t;
  const r = cv.getBoundingClientRect(), d = Math.min(devicePixelRatio || 1, 2);
  if (!r.width) return;
  if (cv.width !== Math.round(r.width * d)) { cv.width = Math.round(r.width * d); cv.height = Math.round(r.height * d); }
  const ctx = cv.getContext("2d"), W = cv.width, H = cv.height, cx = W / 2, base = H - 22 * d;
  const lit = n.heat >= 0, ramp = FLAME_RAMPS[Math.max(0, n.heat)];
  const power = lit ? Math.min(1, 0.25 + n.left / 14400) : 0;
  ctx.clearRect(0, 0, W, H);
  if (lit && !STILL) {
    for (let i = Math.round(90 * power * dt) + 1; i > 0; i--) st.parts.push({ k: "f", x: cx + (Math.random() - 0.5) * 46 * d * (0.6 + power * 0.6), y: base,
      vx: (Math.random() - 0.5) * 18 * d, vy: -(40 + Math.random() * 60) * d * (0.55 + power), life: 0,
      max: 0.55 + Math.random() * 0.5 * (0.5 + power), r: (7 + Math.random() * 9) * d * (0.6 + power * 0.5) });
    if (Math.random() < dt * 6 * power) st.parts.push({ k: "e", x: cx + (Math.random() - 0.5) * 40 * d, y: base - 10 * d,
      vx: (Math.random() - 0.5) * 30 * d, vy: -(60 + Math.random() * 60) * d, life: 0, max: 1 + Math.random(), r: 1.4 * d });
  }
  if (!STILL && (!lit || n.low) && Math.random() < dt * (lit ? 5 : 3)) st.parts.push({ k: "s", x: cx + (Math.random() - 0.5) * 20 * d,
    y: base - (lit ? 40 * d : 0), vx: (Math.random() - 0.3) * 10 * d, vy: -(18 + Math.random() * 14) * d, life: 0, max: 2.5 + Math.random(), r: (6 + Math.random() * 5) * d });
  ctx.fillStyle = "#3a2a1e";
  ctx.save();
  ctx.translate(cx, base + 8 * d);
  for (const [angle, w] of [[-0.18, 70], [0.2, 64], [0, 50]]) {
    ctx.save(); ctx.rotate(angle); ctx.beginPath(); ctx.roundRect(-w / 2 * d, -5 * d, w * d, 10 * d, 5 * d); ctx.fill(); ctx.restore();
  }
  ctx.restore();
  if (lit) {
    const glow = ctx.createRadialGradient(cx, base + 4 * d, 2, cx, base + 4 * d, 60 * d);
    glow.addColorStop(0, ramp[1] + "aa");
    glow.addColorStop(1, ramp[3] + "00");
    ctx.fillStyle = glow;
    ctx.fillRect(0, 0, W, H);
  } else {
    ctx.fillStyle = "#4a4a50";
    ctx.beginPath(); ctx.ellipse(cx, base + 12 * d, 38 * d, 5 * d, 0, 0, Math.PI * 2); ctx.fill();
  }
  if (lit && STILL) {
    const h = 44 * d * (0.6 + power * 0.5), g = ctx.createRadialGradient(cx, base - 18 * d, 2, cx, base - 18 * d, h);
    ramp.forEach((c, i) => g.addColorStop(i / 3, c + (i === 3 ? "00" : "ff")));
    ctx.fillStyle = g;
    ctx.beginPath(); ctx.ellipse(cx, base - 18 * d, 26 * d, h, 0, 0, Math.PI * 2); ctx.fill();
  }
  st.parts = st.parts.filter((p) => (p.life += dt) < p.max);
  ctx.globalCompositeOperation = "lighter";
  for (const p of st.parts) {
    p.x += p.vx * dt;
    p.y += p.vy * dt;
    const k = p.life / p.max;
    if (p.k === "f") {
      p.vx += (cx - p.x) * 1.8 * dt;
      ctx.globalAlpha = (1 - k) * 0.55;
      ctx.fillStyle = rampAt(ramp, Math.min(1, k * 1.25));
      ctx.beginPath(); ctx.arc(p.x, p.y, p.r * (1 - k * 0.7), 0, Math.PI * 2); ctx.fill();
    } else if (p.k === "e") {
      ctx.globalAlpha = 1 - k;
      ctx.fillStyle = ramp[1];
      ctx.fillRect(p.x, p.y, p.r * 2, p.r * 2);
    }
  }
  ctx.globalCompositeOperation = "source-over";
  for (const p of st.parts) if (p.k === "s") {
    const k = p.life / p.max;
    ctx.globalAlpha = (1 - k) * 0.22;
    ctx.fillStyle = "#9aa0ae";
    ctx.beginPath(); ctx.arc(p.x, p.y, p.r * (1 + k * 2), 0, Math.PI * 2); ctx.fill();
  }
  ctx.globalAlpha = 1;
}

function prayerPanel() {
  const me = S.me, city = S.city, level = me.levels.prayer;
  const cost = C.prayers.filter((p) => me.prayers.includes(p.id)).reduce((sum, p) => sum + p.cost, 0);
  const cards = C.prayers.map((p) => {
    const on = me.prayers.includes(p.id), locked = level < p.level;
    const full = !on && me.prayers.length >= C.max_prayers;
    return `<button class="prayer ${on ? "on" : ""} ${locked ? "locked" : ""}" data-pray="${p.id}" ${locked ? "disabled" : ""}
      title="${locked ? `Needs prayer level ${p.level}` : full ? `Max ${C.max_prayers} active` : ""}">
      <span class="ico">${p.icon}</span>
      <span class="grow"><b>${esc(p.name)}</b><span class="small muted">${esc(p.text)}</span></span>
      <span class="small ${locked ? "why" : "muted"}">${locked ? `Lv ${p.level}` : `${p.cost} pt${p.cost > 1 ? "s" : ""}/fight`}</span>
    </button>`;
  }).join("");
  const temple = city.buildings.temple.level;
  return `<div class="cols">
    <div class="panel"><h2>Prayers · ${me.prayers.length} / ${C.max_prayers} active</h2>
      <div class="prayer-points">${skillOf("prayer").icon} <b>${fmt(me.pp)}</b> prayer points${cost ? ` · ${cost} per fight (~${fmt(me.pp / cost)} fights)` : ""}</div>
      <div class="prayers">${cards}</div>
      <p class="small muted">Prayers cost points each fight. Bury bones for more.</p>
    </div>
    <div class="panel"><h2>Temple</h2>
      ${temple ? `<p>Devotion <b>${fmt(city.devotion)}</b> · ward <b>+${city.ward}</b> defence (max +${15 * temple})</p>
        <p class="small muted">Offerings ward the next raid. +${temple} prayer point${temple > 1 ? "s" : ""} per bone buried.</p>`
      : `<p class="muted">No temple yet.</p>`}
    </div></div>`;
}

// A damage type's icon: what an enemy attacks with, or (tinted) what it's vulnerable to or resists.
function dmgIcon(type, how = "") {
  const t = C.damage_types[type], name = t.name.toLowerCase();
  const tip = how === "vuln" ? `Vulnerable to ${name} (+${Math.round((C.vulnerable - 1) * 100)}%)`
    : how === "resist" ? `Resists ${name} (-${Math.round((1 - C.resistant) * 100)}%)`
    : how === "attack" ? `Attacks with ${name}` : `${t.name} damage`;
  return `<span class="dmg ${how}" title="${esc(tip)}">${glyph(t.glyph, t.tint)}</span>`;
}

function resistIcons(v) {
  return v.vulnerable.map((k) => dmgIcon(k, "vuln")).join("") + v.resists.map((k) => dmgIcon(k, "resist")).join("");
}

// Who turns up in an encounter: each variant, what it attacks with, and how it takes each damage type.
// A variant your weapon is good against is green, one that resists it red.
function variantRows(e, o) {
  return `<div class="variants">${e.variants.map((v, i) => {
    const fit = o.variants[i].affinity;
    return `<div class="variant ${fit > 1 ? "good" : fit < 1 ? "bad" : ""}">
      <span class="v-attack">${v.attack.map((k) => dmgIcon(k, "attack")).join("")}</span>
      <span class="v-name">${esc(v.name)}${v.archetype === "elite" && !e.boss ? ` <span class="muted">· rare</span>` : ""}</span>
      <span class="v-hp muted">${fmt(v.hp)} HP</span>
      <span class="v-res">${resistIcons(v)}</span>
    </div>`;
  }).join("")}</div>`;
}

// Everything about fighting in one frame. Left: you and whoever's with you, your abilities (on auto),
// your prayers (switch them mid-fight) and your gear (swap it mid-fight). Right: the pack, each with
// what it attacks with and how it takes each damage type (your weapon's outlined), and the fight as
// it plays out.
function combatFrame() {
  const me = S.me, a = me.action, f = a?.fight;
  const encounter = a && C.actions.find((x) => x.id === a.id);
  const waiting = a?.waiting;
  const others = f ? f.members.filter((m) => m.id !== S.uid) : [];
  const unit = (id, name, foe = false, extra = "") => `<div class="fighter ${foe ? "foe-unit" : id === S.uid ? "" : "ally"} ${f ? "aimable" : ""}"
      data-u="${esc(id)}" ${f ? `data-aim="${esc(id)}" title="${foe ? "Tap to fight this one" : "Tap to aim your heals here"}"` : ""}>
      <div class="fighter-name"><b>${name}${extra}</b><span class="small muted"><span class="hitnum" data-u-hitnum></span><span data-u-status></span> ${foe ? "" : HEART} <span data-u-hp>${id === S.uid ? `${fmt(me.hp)} / ${me.max_hp}` : ""}</span></span></div>
      <div class="bar hp ${foe ? "foe" : "you"}"><span class="lag" data-u-lag></span><span data-u-bar${id === S.uid ? ` data-live-hpbar style="width:${me.hp / me.max_hp * 100}%"` : ""}></span></div>
      <div class="bar swing"><span data-u-swing></span></div>
      <div class="cast small" data-u-cast></div>
    </div>`;
  const you = unit(S.uid, esc(me.name)) + others.map((m) => unit(m.id, esc(m.name))).join("");
  const run = a?.run;
  // A dungeon run: where you are in it, and (for the leader) the button to start it, or to go in early while resting.
  const lead = run?.leader === S.uid;
  const stage = run ? `<div class="run-head"><b>${esc(run.dungeon)}</b>
      <span class="muted small">${run.pull} / ${run.of} · ${esc(run.next)}${run.wipes ? ` · wipes ${run.wipes} / ${C.dungeon_wipes}` : ""}</span>
      ${!run.started && lead ? `<button class="btn sm primary" data-start-run title="No one can join once you start">Start</button>`
        : f && lead ? `<button class="btn sm" data-pull data-pull-btn>Pull now</button>` : ""}</div>` : "";
  const group = run && [S.uid, ...(a.with || [])].map((uid) => uid === S.uid ? "You" : esc(playerName(uid))).join(", ");
  let foe = `<div class="foe-idle muted">${run && !run.started ? `👥 ${run.size} / ${C.dungeon_size} · ${group}<br>${lead ? "Start when everyone's in" : `${esc(playerName(run.leader))} starts the run`}`
    : run?.away?.length ? `Waiting for ${run.away.map(esc).join(", ")} to come back`
    : run ? `Ready: ${esc(run.next)}` : waiting ? `👥 Waiting for a group · 1 / ${C.group_size}` : "Not fighting."}</div>`;
  if (f) {
    const mine = C.styles[me.fighter.style || "sword"]?.damage || me.fighter.damage;
    const traits = (v) => `<span class="v-attack">${v.attack.map((k) => dmgIcon(k, "attack")).join("")}</span>
      <span class="v-res">${v.vulnerable.map((k) => `<span class="${k === mine ? "yours" : ""}">${dmgIcon(k, "vuln")}</span>`).join("")}${v.resists.map((k) => `<span class="${k === mine ? "yours" : ""}">${dmgIcon(k, "resist")}</span>`).join("")}</span>`;
    foe = `<div class="foe-head"><span class="foe-ico">${encounter?.icon || ""}</span><b>${esc(f.enemy)}</b></div>
      <div class="pack">${f.pack.map((v, i) => unit(`e${i}`, `${esc(v.name)}${v.archetype === "elite" && !v.boss ? ` <span class="muted">· rare</span>` : ""}`, true,
        ` <span class="traits-inline">${traits(v)}</span>`)).join("")}</div>
      <ul class="fight-log" data-f="log"></ul>`;
  }
  return `<div class="panel fight combat-frame" ${f ? `data-fight="${a.start}"` : ""}>
    <div class="you-side">${you}${abilityBar(me)}${prayerBar(me)}${paperDoll(me, true)}</div>
    <div class="foe-side">${stage}${foe}</div>
  </div>`;
}

// Your abilities, from your weapon and your trade: each lights up as it's used and shows its cooldown.
// On AUTO a rule uses it on a longer cooldown; on YOU you press it (tap, or its number key) on the real
// one, for as long as you're watching. The weapon's ones still to come are dimmed with their level.
function abilityBar(me) {
  const known = me.fighter.abilities, style = me.fighter.style || "sword";
  const shield = !!me.equip.shield;
  const tile = (id, on) => {
    const ab = C.abilities[id], manual = on && me.manual.includes(id);
    const why = on ? "" : ab.needs === "shield" && !shield && me.levels.combat >= ab.level ? "needs a shield" : `combat ${ab.level}`;
    const base = (ab.cd || 0) * (me.fighter.mods?.[id]?.cd ?? 1);
    const cd = base ? ` · ${+(manual ? base : base * C.auto_cd).toFixed(1)}s cooldown` : "";
    const boosts = (me.fighter.boosts?.[id] || []).map((n) => ` · ✦ ${n}`).join("");
    const tip = `${ab.name}: ${ab.tip}${cd}${boosts}${why ? ` · ${why}` : ""}`;
    return `<span class="ab ${on ? (manual ? "manual" : "auto") : "locked"} ${boosts && on ? "boosted" : ""}" data-ab="${id}">
      <button class="ab-press" data-press="${id}" title="${esc(tip)}" ${on ? "" : "disabled"}>${ab.icon}<span class="ab-cd" data-ab-cd></span>
        ${on ? "" : `<span class="ab-lv">${why === "needs a shield" ? glyph("checked-shield", "#d4dae2") : ab.level}</span>`}</button>
      ${on ? `<button class="ab-mode" data-mode="${id}" title="${esc(manual ? `Yours: press it while you watch. Look away ${C.watch}s and it's back on auto. Tap for auto.`
        : `Auto: used by itself on a ${C.auto_cd}× cooldown. Tap to take it yourself.`)}">${manual ? "YOU" : "AUTO"}</button>` : ""}
    </span>`;
  };
  const kit = C.weapon_kits[style].map((id) => tile(id, known.includes(id)));
  const trade = C.trade_ability[me.cls];
  const potion = me.health_potion;
  return `<div class="ability-bar">${kit.join("")}${trade ? `<span class="ab-gap"></span>${tile(trade, true)}` : ""}
    <span class="ab-gap"></span><span class="ab potion ${potion ? "" : "locked"}" data-ab="potion"
      title="${esc(potion ? `${item(potion).name}: +${item(potion).drink} HP, once a fight under ${Math.round(C.potion_below * 100)}% · ${fmt(me.bank[potion])} left` : "No health potion")}">${item(potion || "health_potion_1").icon}${potion ? `<span class="swap-qty">${fmt(me.bank[potion])}</span>` : ""}</span></div>`;
}

// Prayers you can switch on and off between swings, and the points left to pay for them.
function prayerBar(me) {
  const level = me.levels.prayer;
  const buttons = C.prayers.filter((p) => p.level <= level).map((p) => {
    const on = me.prayers.includes(p.id);
    return `<button class="pray-btn ${on ? "on" : ""}" data-pray="${p.id}" title="${esc(`${p.name}: ${p.text} · ${p.cost} pt${p.cost > 1 ? "s" : ""}/fight`)}">${p.icon}</button>`;
  }).join("");
  return `<div class="prayer-bar"><span class="pp ${me.prayers.length && !me.blessing.cost ? "warn" : ""}" title="Prayer points">${skillOf("prayer").icon} ${fmt(me.pp)}</span>${buttons}</div>`;
}

const SWINGS = new Set(["hit", "crit", "miss", "block", "absorb"]);
const LAG = 0.6;       // seconds the "just lost" part of an HP bar trails behind
const STOPPED = 1.2;   // seconds an interrupted cast stays on its bar

// A line of the fight, terse: who, to whom, how much, with what.
function fightLine(e, f) {
  const [, src, tgt, kind, n, , label] = e;
  const name = (id) => id === S.uid ? "You" : id?.[0] === "e" ? esc(f.pack[+id.slice(1)].name) : esc(playerName(id));
  const ab = C.abilities[label] || C.enemy_abilities[label];
  const what = ab ? ` ${ab.icon} ${esc(ab.name)}` : C.damage_types[label] ? ` ${dmgIcon(label)}` : "";
  const hurtsMe = tgt === S.uid && src?.[0] === "e";
  const tone = hurtsMe ? "bad" : src === S.uid ? "" : "muted";
  switch (kind) {
    case "hit": case "crit": case "tick":
      return `<li class="${tone}">${name(src)} → ${name(tgt)} <b>${n}</b>${kind === "crit" ? " crit" : ""}${what}</li>`;
    case "miss": return `<li class="muted">${name(src)} → ${name(tgt)} miss</li>`;
    case "block": return `<li class="${tgt === S.uid ? "good" : "muted"}">${name(tgt)} block${tgt === S.uid ? "" : "s"}${what}</li>`;
    case "absorb": return `<li class="${tgt === S.uid ? "good" : "muted"}">${C.abilities.ward.icon} ${name(tgt)} soak${tgt === S.uid ? "" : "s"} ${n}</li>`;
    case "cast": return `<li class="${src?.[0] === "e" ? "warn" : tone}">${name(src)}${what}…</li>`;
    case "use": return `<li class="${tone}">${name(src)}${what}${tgt && tgt !== src ? ` → ${name(tgt)}` : ""}</li>`;
    case "stop": return `<li class="good">${name(src)} ✋ ${name(tgt)}${what}</li>`;
    case "heal": return `<li class="good">${label === "potion" ? `${name(tgt)} ${item("health_potion_1").icon} potion` : `${name(src)}${what} → ${name(tgt)}`} +${n}</li>`;
    case "mend": return `<li class="muted">${name(tgt)} +${n}${what}</li>`;
    case "cc": return `<li class="good">${what} ${name(tgt)} held</li>`;
    case "free": return `<li class="muted">${name(tgt)} breaks free</li>`;
    case "die": return `<li class="good">${name(tgt)} falls</li>`;
    case "enrage": return `<li class="bad">${C.abilities.unstoppable.icon} ${name(src)} ${label === "hard" ? "<b>loses patience</b>" : "enrages"}</li>`;
    case "yell": return `<li class="warn">${name(src)}: <b>“${esc(label)}”</b></li>`;
    case "join": return `<li class="warn">${name(src)} joins the fight</li>`;
    case "wind": return `<li class="good">${C.prayers.find((p) => p.id === "second_wind").icon} Second wind! ${name(src)}</li>`;
    case "down": return `<li class="bad">${C.abilities.concuss.icon} <b>${src === S.uid ? "You're knocked out" : `${name(src)} is knocked out`}</b></li>`;
    case "left": return `<li class="muted">${name(src)} left</li>`;
  }
  return "";
}

// Whether a use of an ability came from a press (within the queue window before it), so it ran on its
// real cooldown.
function pressedNear(f, uid, ab, time) {
  const m = f.members.find((x) => x.id === uid);
  return (m.inputs || []).some((i) => i[1] === "press" && i[2] === ab && time >= (f.rest + i[0]) / f.pace - 0.01
    && time <= (f.rest + i[0] + 1.5) / f.pace + 0.01);
}

// Where everyone in the fight stands at `t` seconds into it: HP, last swing, cast under way, out or not,
// and when each of your abilities was last used.
function fightState(f, t) {
  const rest = f.rest / f.pace, st = {};
  for (const m of f.members) st[m.id] = { hp: m.hp_in, top: m.top, from: m.at / f.pace + rest, every: m.interval, swung: null,
    cast: null, out: null, cds: {}, manualAt: {}, pressed: new Set((m.inputs || []).filter((i) => i[1] === "press").map((i) => i[2])) };
  f.pack.forEach((foe, i) => { st[`e${i}`] = { hp: foe.hp, top: foe.hp, from: rest, every: foe.interval / f.pace, swung: null, cast: null, out: null, held: false, enraged: false, hidden: !!foe.dormant }; });
  let shown = -1;
  while (shown + 1 < f.events.length && f.events[shown + 1][0] <= t) {
    const [time, src, tgt, kind, n, hp, label] = f.events[++shown];
    const who = st[src], them = st[tgt];
    if (them && hp != null) them.hp = hp;
    if (who && SWINGS.has(kind) && (label === "" || C.damage_types[label])) who.swung = time;
    if (who && kind === "cast") {
      const spec = src[0] === "e" ? C.enemy_abilities[label] : C.abilities[label];
      const mod = src[0] === "e" ? 1 : f.members.find((m) => m.id === src)?.mods?.[label]?.cast ?? 1;
      who.cast = { label, from: time, until: time + spec.cast * mod / f.pace };
    }
    const ab = C.abilities[label];
    if (who?.cds && ab && (ab.cast ? kind === "cast" : kind === "use" || SWINGS.has(kind)) && who.cds[label] !== time) {
      who.cds[label] = time;
      who.manualAt[label] = who.pressed.has(`${label}`) && pressedNear(f, src, label, time);
    }
    if (who?.cds && tgt?.[0] === "e" && (SWINGS.has(kind) || kind === "cast" || kind === "use")) who.aim = tgt;
    if (who && kind === "heal" && label === "potion") who.drank = true;
    if (them && kind === "stop" && them.cast) them.stopped = { label: them.cast.label, at: time };
    if (them && (kind === "stop" || kind === "cc")) them.cast = null;
    if (them && ["hit", "crit", "tick", "heal", "mend"].includes(kind) && n) them.hit = { at: time, n, kind };
    if (them && kind === "cc") them.held = true;
    if (them && (kind === "free" || kind === "die")) them.held = false;
    if (them && kind === "die") them.out = "dead";
    if (who && (kind === "down" || kind === "left")) who.out = kind;
    if (who && kind === "enrage") who.enraged = true;
    if (who && kind === "join") { who.hidden = false; who.from = time; }
  }
  return { st, shown };
}

function animateFight(now) {
  const a = S.me?.action, f = a?.fight;
  if (!f) return;
  const t = now - a.start, rest = f.rest / f.pace;
  const over = t >= f.end;
  const resting = t < rest;
  const { st, shown } = fightState(f, t);
  const before = fightState(f, t - LAG).st;   // the HP a moment ago, trailing the bar
  const mine = f.members.find((m) => m.id === S.uid) || f.members[0];
  const me = st[mine.id];
  // Resting: everyone's HP climbs back to full while they eat.
  if (resting) for (const m of f.members) st[m.id].hp = m.start_hp + (m.hp_in - m.start_hp) * Math.min(1, t / rest);
  const enemies = f.pack.map((_, i) => st[`e${i}`]);
  const left = enemies.reduce((sum, e) => sum + e.hp, 0), total = enemies.reduce((sum, e) => sum + e.top, 0);
  for (const el of document.querySelectorAll("[data-progress]")) el.style.width = `${(resting ? 1 : left / total) * 100}%`;
  for (const el of document.querySelectorAll("[data-live-hp]")) el.textContent = fmt(me.hp);
  for (const el of document.querySelectorAll("[data-live-hpbar]")) el.style.width = `${Math.max(0, me.hp / me.top * 100)}%`;
  const panel = $("[data-fight]");
  if (!panel) return;
  panel.classList.toggle("waiting", resting);
  const pull = panel.querySelector("[data-pull-btn]");
  if (pull) pull.hidden = !resting;
  const pick = [...(mine.inputs || [])].reverse().find((i) => i[1] === "target" && (f.rest + i[0]) / f.pace <= t && i[2][0] === "e");
  const live = (id) => id && st[id] && !st[id].out && !st[id].hidden;
  const tapped = aim.fight === a.start ? aim : {};
  const aimed = live(tapped.foe) ? tapped.foe : live(pick?.[2]) ? pick[2] : live(me.aim) ? me.aim : null;
  const healing = live(tapped.ally) ? tapped.ally : null;
  for (const el of panel.querySelectorAll("[data-u]")) {
    const u = st[el.dataset.u];
    if (!u) continue;
    el.classList.toggle("aimed", (el.dataset.u === aimed || el.dataset.u === healing) && !over);
    const gone = !!u.out || over;
    el.classList.toggle("out", !!u.out);
    el.hidden = !!u.hidden;
    el.querySelector("[data-u-bar]").style.width = `${Math.max(0, u.hp / u.top * 100)}%`;
    const was = before[el.dataset.u];
    el.querySelector("[data-u-lag]").style.width = `${Math.max(0, Math.max(u.hp, resting ? 0 : was?.hp ?? u.hp) / u.top * 100)}%`;
    const hit = u.hit && t - u.hit.at < 1 ? u.hit : null, num = el.querySelector("[data-u-hitnum]");
    const healed = hit && (hit.kind === "heal" || hit.kind === "mend");
    num.textContent = hit ? `${healed ? "+" : "−"}${hit.n}` : "";
    num.className = `hitnum ${healed ? "good" : "bad"} ${hit?.kind === "crit" ? "crit" : ""}`;
    num.style.opacity = hit ? `${1 - (t - hit.at)}` : "0";
    el.querySelector("[data-u-hp]").textContent = u.out === "left" ? "left" : t < u.from && !resting ? "joining…" : `${fmt(u.hp)} / ${fmt(u.top)}`;
    const status = u.out === "dead" ? "" : u.out === "down" ? "concuss" : u.held ? "thornbind" : u.enraged ? "unstoppable" : "";
    const statusEl = el.querySelector("[data-u-status]");
    if (statusEl.dataset.key !== status) {
      statusEl.dataset.key = status;
      statusEl.innerHTML = status ? C.abilities[status].icon : "";
    }
    el.querySelector("[data-u-swing]").style.width = gone || t < u.from ? "0%" : `${Math.min(100, (t - (u.swung ?? u.from)) / u.every * 100)}%`;
    const cast = !gone && u.cast && t < u.cast.until ? u.cast : null;
    // A cast someone stopped stays up a moment, struck through.
    const stopped = !cast && u.stopped && t - u.stopped.at < STOPPED ? u.stopped : null;
    const table = el.dataset.u[0] === "e" ? C.enemy_abilities : C.abilities;
    const spec = cast ? table[cast.label] : stopped ? table[stopped.label] : null;
    const castEl = el.querySelector("[data-u-cast]");
    const key = cast ? `${cast.label}:${cast.from}` : stopped ? `stopped:${stopped.label}:${stopped.at}` : "";
    if (castEl.dataset.key !== key) {
      castEl.dataset.key = key;
      castEl.classList.toggle("stopped", !!stopped);
      castEl.innerHTML = cast ? `<span>${spec.icon} ${esc(spec.name)}</span><span class="bar"><span></span></span>`
        : stopped ? `<span>✋ <s>${spec.icon} ${esc(spec.name)}</s></span><span class="small">interrupted</span>` : "";
    }
    if (cast) castEl.querySelector(".bar > span").style.width = `${Math.min(100, (t - cast.from) / (cast.until - cast.from) * 100)}%`;
  }
  // Your abilities: the shade is the cooldown left, a flash when one's just been used.
  for (const el of panel.querySelectorAll("[data-ab]")) {
    const id = el.dataset.ab;
    if (id === "potion") { el.classList.toggle("spent", !!me.drank); continue; }
    const ab = C.abilities[id], used = me.cds?.[id];
    const cd = (ab.cd || 0) * (mine.mods?.[id]?.cd ?? 1) * (me.manualAt?.[id] ? 1 : C.auto_cd) / f.pace;
    const leftCd = used == null || over ? 0 : Math.max(0, used + cd - t);
    el.querySelector("[data-ab-cd]").style.height = `${cd ? leftCd / cd * 100 : 0}%`;
    el.classList.toggle("fired", used != null && t - used < 0.6);
  }
  const log = panel.querySelector('[data-f="log"]');
  if (log) {
    const key = `${a.start}:${shown}:${over}:${resting ? Math.ceil(rest - t) : ""}`;
    if (log.dataset.key !== key) {
      log.dataset.key = key;
      const eaten = Object.entries(mine.eaten || {});
      const lines = f.events.slice(Math.max(0, shown - 6), shown + 1).reverse().map((e) => fightLine(e, f)).filter(Boolean);
      if (over) lines.unshift(f.result === "won" ? `<li class="good"><b>Victory!</b> Next fight coming…</li>`
        : `<li class="bad"><b>${f.result === "fled" ? "It dragged on: you fall back." : "Beaten."}</b></li>`);
      log.innerHTML = resting ? `<li class="muted">Resting · ${Math.ceil(rest - t)}s</li>${eaten.length
        ? `<li class="muted">${HEART} ${eaten.map(([id, q]) => `${fmt(q)} ${esc(item(id).name.toLowerCase())}`).join(", ")}</li>` : ""}`
        : lines.join("") || `<li class="muted">Squaring up…</li>`;
    }
  }
}

// A piece of jewellery's bonus, e.g. "+8% accuracy".
function jewelText(it) {
  const st = C.jewel_stats[it.jewel];
  return `${st.sign || "+"}${it[it.jewel]}${st.unit} ${st.name.toLowerCase()}`;
}

// Power, armour and ward, and the armour's weight.
function gearStats(it) {
  const stats = [it.power && `+${it.power} power`, it.armour && `+${it.armour} armour`, it.ward && `+${it.ward} ward`,
    it.jewel && !["power", "ward"].includes(it.jewel) && jewelText(it)];
  return stats.filter(Boolean).join(", ") + (it.weight ? ` (${C.weights[it.weight].name.toLowerCase()})` : "");
}

const GEAR_SLOTS = ["weapon", "shield", "helmet", "body", "legs", "ring", "amulet", "trinket"];

// A weapon's or armour piece's stats in a small grid. Weapons: damage type and power | 1H or 2H | swing
// time; armour: armour | weight | ward. Below: what it needs to wear, and any bonus for you.
function gearChips(it, who = S.me) {
  const cell = (icon, text, tip, cls = "") => `<span class="gstat ${cls}" title="${esc(tip)}">${icon}${text === "" ? "" : `<span>${text}</span>`}</span>`;
  const hands = (two) => `<span class="hands">${two ? "2H" : "1H"}</span>`;
  let row = ["", "", ""];
  if (it.style) {
    const st = C.styles[it.style], dt = C.damage_types[st.damage];
    row = [cell(glyph(dt.glyph, dt.tint), it.power, `${dt.name} damage, +${it.power} power`),
      cell(hands(it.two_handed), "", it.two_handed ? "Two-handed: no shield" : "One-handed: room for a shield"),
      cell(glyph("stopwatch", "#9fb3c8"), `${st.interval}s`, `A swing every ${st.interval}s`)];
  } else if (it.slot === "shield") {
    row = [cell(glyph("checked-shield", "#d4dae2"), it.armour, `+${it.armour} armour, +${it.power} power`),
      cell(hands(false), "", "Held in one hand"),
      cell(glyph("checked-shield", "#e0b04a"), `${Math.round(C.block_chance * 100)}%`, "Blocks this share of hits")];
  } else if (it.weight) {
    row = [cell(glyph("checked-shield", "#d4dae2"), it.armour, `+${it.armour} armour: less damage from blows`),
      cell("", C.weights[it.weight].name, `${C.weights[it.weight].name} armour`, "muted"),
      cell(glyph("magic-shield", "#a77be8"), it.ward, `+${it.ward} ward: less damage from magic`)];
  } else if (it.jewel) {
    const st = C.jewel_stats[it.jewel];
    row = [cell(glyph(st.glyph, st.tint), `${st.sign || "+"}${it[it.jewel]}${st.unit}`, jewelText(it)), "<span></span>", "<span></span>"];
  }
  let req = "", bonus = "";
  if (it.req) {
    const [skill, level] = it.req;
    req = cell(skillOf(skill).icon, level, `Needs ${skillOf(skill).name.toLowerCase()} ${level}`, who.levels[skill] < level ? "short" : "");
  }
  if (it.style && C.class_style[who.cls] === it.style) {
    bonus = cell(C.classes[who.cls].icon, "+15%", "The trade's own weapon: +15% damage", "trade");
  }
  return `<div class="stat-grid">${row.join("")}${req}<span></span>${bonus || "<span></span>"}</div>
    ${it.unique ? `<div class="small unique-text">✦ ${esc(it.unique)}</div>` : ""}`;
}

// A pattern: what it teaches, and the button to learn it (used up).
function patternRow(id, it) {
  const made = item(it.pattern), skill = skillOf(it.skill), known = (S.me.patterns || []).includes(id);
  const short = S.me.levels[it.skill] < it.level;
  return `<div class="row"><div class="small">Teaches ${made.icon} <b>${esc(made.name)}</b> · ${skill.icon} ${skill.name} ${it.level}</div>
    ${known ? `<span class="tag good">Known</span>` : `<button class="btn sm gold" data-learn="${id}" ${short ? `disabled title="Needs ${esc(skill.name.toLowerCase())} ${it.level}"` : ""}>Learn</button>`}</div>`;
}

// What an item does once made: healing, defence, tool speed, and who can use it.
function itemStats(id) {
  const it = item(id);
  const parts = [];
  if (it.heal) parts.push(`❤️ Heals ${it.heal}`);
  if (it.drink) parts.push(`❤️ +${it.drink} in a fight`);
  if (it.food) parts.push(`feeds ${it.food} for 2 days`);
  if (it.power) parts.push(`+${it.power} power`);
  if (it.style) {
    const st = C.styles[it.style], trade = Object.entries(C.class_style).find(([, s]) => s === it.style)?.[0];
    parts.push(`${it.two_handed ? "two-handed " : ""}${st.name}, ${st.interval}s${trade ? ` (${C.classes[trade].name.toLowerCase()})` : ""}`);
  }
  if (it.armour || it.ward) parts.push(gearStats({ ...it, power: 0 }));
  if (it.reagent) parts.push(it.reagent === "jewel" ? "Reagent for jewellery" : `Reagent for ${C.weights[it.reagent].name.toLowerCase()} armour`);
  if (it.jewel && !["power", "ward"].includes(it.jewel)) parts.push(jewelText(it));
  if (it.tool || it.station) parts.push(`${Math.round(it.speed * 100)}% faster ${skillOf(it.tool || it.station).name.toLowerCase()}`);
  if (it.slots) parts.push(storageText(it));
  if (it.stack) parts.push(storageText(it));
  if (it.req && it.req[1] > 1) parts.push(`needs ${skillOf(it.req[0]).name.toLowerCase()} ${it.req[1]}`);
  if (it.potion) parts.push(`${it.potion.text}, ${C.potion_charges} uses`);
  if (it.trophy) parts.push(`Trophy for stronger weapons`);
  if (it.fitting) {
    const f = C.fittings.find((x) => x.id === id), done = S.city.buildings[f.building].fittings.includes(id);
    parts.push(`${C.buildings[f.building].icon} ${C.buildings[f.building].name} Lv ${f.level}: ${f.effect}${done ? " · fitted" : ""}`);
  }
  return parts.join(", ");
}

function actionCard(a) {
  const me = S.me;
  const active = me.action?.id === a.id;
  const second = me.action?.plot2 === a.id;  // a homesteader's second plot
  const growingNow = me.action?.growing === a.id;
  const canPlot = me.cls === "homesteader" && a.skill === "farming" && !a.special && !active && !second
    && me.action && C.actions.find((x) => x.id === me.action.id)?.skill === "farming" && !me.action.left;
  const why = me.blocked[a.id];
  const locked = isLocked(a);
  const out = Object.keys(a.outputs)[0];
  const icon = a.icon;
  const time = me.times[a.id];
  let io = "";
  if (Object.keys(a.inputs).length) {
    io += inputChips(a) + (Object.keys(a.outputs).length || a.finds ? `<span class="arrow">→</span>` : "");
  }
  io += Object.entries(a.outputs).map(([id, q]) => itemChip(id, q)).join("");
  const chance = ([id, q, odds]) => `<span class="item-chip" title="${esc(item(id).name)}${q > 1 ? ` ×${q}` : ""}: ${Math.round(odds * 100)}% chance">${item(id).icon} ${Math.round(odds * 100)}%</span>`;
  if (a.finds) io += a.finds.map(chance).join("");
  let extra = "";
  if (a.enemy) {
    const o = me.fight_odds[a.id], e = a.enemy;
    const own = (a.dungeon ? `<span class="tag warn" title="${esc(`${a.pulls.length} pulls: ${a.pulls.join(" · ")}. Trash falls on auto; the bosses take your own hands. ${C.dungeon_wipes} wipes on a pull and the run's over.`)}">🏰 Dungeon · ${C.group_size}–${C.dungeon_size}</span> `
      : a.together ? `<span class="tag warn" title="Fought by ${C.group_size} or more: alone, you wait for someone to join">👥 Group</span> ` : "")
      + (a.personal_loot ? `<span class="tag good" title="Everyone in the fight gets their own loot">🎁 Own loot</span>` : "");
    extra = `${e.boss || own ? `<div>${e.boss ? `<span class="tag warn">Boss</span> ` : ""}${own}</div>` : ""}${variantRows(e, o)}${fightingHere(a, why)}`;
    if (a.gold) io += `<span class="item-chip" title="Gold: ${a.gold[0]}–${a.gold[1]} a kill">${COIN} ${a.gold[0]}–${a.gold[1]}</span>`;
    if (a.drops) io += a.drops.map(chance).join("");
    if (a.loot) {
      const l = a.loot, pct = (x) => `${Math.round(x * 100)}%`;
      io += `<span class="item-chip" title="${esc(`${item(l.relic).name}: from every boss, to reforge masterworks`)}">${item(l.relic).icon}</span>`
        + `<span class="item-chip" title="${esc(`Patterns (${l.patterns.length}): ${l.patterns.map((p) => item(item(p).pattern).name).join(", ")}. ${pct(l.odds.pattern[0])} from a mini-boss, ${pct(l.odds.pattern[1])} from the last boss`)}">${item(l.patterns[0]).icon} ${l.patterns.length}</span>`
        + `<span class="item-chip" title="${esc(`${item(l.unique).name}: ${item(l.unique).unique}`)}">${item(l.unique).icon} ${pct(l.odds.unique)}</span>`;
    }
    if (a.special === "sabotage") extra += `<div class="small muted">-1% raid strength per win (max 30%)</div>`;
  }
  if (a.special === "drill") {
    const s = S.favours.sergeant, boost = s.boost;
    extra = !s.needed ? `<div class="small muted">Only while a raid is coming.</div>`
      : `<div class="small makes">${skillOf("combat").icon} +${+me.drill_per_action.toFixed(2)} drill · ${fmt(s.points)} / ${fmt(s.needed)} points, worth ${fmt(s.defence)} of ${fmt(s.cap)} defence</div>
      ${boostBar(s.points, s.needed, boost, "Drill sergeant: this stretch drills twice as fast")}`;
  }
  if (a.special === "recon") {
    const boost = S.favours.informant.boost;
    const ev = S.upcoming, full = ev && ev.recon >= ev.recon_full;
    extra = full ? `<div class="small muted">Fully scouted: XP only.</div>`
      : `<div class="small makes">${skillOf("reconnaissance").icon} +${+me.recon_gain[a.id].toFixed(2)} recon</div>
      ${ev?.recon_full ? boostBar(ev.recon, ev.recon_full, boost, "Informant: this stretch scouts twice as fast") : ""}`;
  }
  const temple = S.city.buildings.temple?.level || 0;
  if (a.special === "labour") {
    extra = `<div class="small makes">${skillOf("construction").icon} +${me.labour_per_action} labour per action</div>`;
  }
  if (a.special === "bury") extra = `<div class="small makes">${skillOf("prayer").icon} +${a.pp + temple} prayer points</div>`;
  if (a.special === "offer") extra = `<div class="small makes">${C.buildings.temple.icon} +${+(a.devotion * (1 + 0.25 * temple)).toFixed(1)} devotion</div>`;
  const gear = Object.keys(a.outputs).filter((id) => GEAR_SLOTS.includes(item(id).slot));
  const made = Object.keys(a.outputs).filter((id) => !gear.includes(id)).map(itemStats).filter(Boolean);
  extra += gear.map((id) => gearChips(item(id))).join("");
  if (made.length) extra += `<div class="small makes">${made.join(" · ")}</div>`;
  return `
    <div class="action ${active || second ? "active" : ""} ${locked ? "locked" : ""}">
      <div class="top"><div class="ico">${icon}</div><div>
        <div class="name">${esc(a.name)} ${Object.keys(a.outputs).map(needTag).join("")}</div>
        <div class="sub">Level ${a.level} · ${dur(time)} · ${a.xp} XP</div>
      </div>${Object.keys(a.inputs).length ? `<button class="pin ${me.tracked === a.id ? "on" : ""}" data-track="${a.id}" title="${me.tracked === a.id ? "Untrack" : "Track"}">📌</button>` : ""}</div>
      ${io ? `<div class="io">${io}</div>` : ""}
      ${extra}
      ${me.action?.plot2 && (active || second) ? `<div class="small muted">Plot ${active ? 1 : 2}${growingNow ? " · growing now" : " · next"}</div>` : ""}
      ${growingNow && !a.enemy ? `<div class="bar thick"><span data-progress></span></div>` : ""}
      ${active && a.enemy ? `<div><span class="tag gold">⚔️ Fighting${me.action.with?.length ? ` with ${me.action.with.map((uid) => esc(playerName(uid))).join(", ")}` : ""}</span></div>` : ""}
      ${active && me.action.left ? `<div class="small muted">Just one${me.action.resume ? `, then back to ${esc(C.actions.find((x) => x.id === me.action.resume).name.toLowerCase())}` : ""}</div>` : ""}
      <div class="foot">
        <span class="why">${!active && !second && why ? esc(why) : ""}</span>
        ${second ? `<button class="btn" data-plot="">Clear plot 2</button>`
          : active ? `<button class="btn danger" data-stop>Stop</button>`
          : `<span class="btns"><button class="btn" data-once="${a.id}" ${why ? "disabled" : ""} title="Once, then resume">${a.enemy ? "Fight once" : Object.keys(a.outputs).length ? "Make one" : "Once"}</button>
             ${canPlot ? `<button class="btn" data-plot="${a.id}" ${why ? "disabled" : ""} title="Grow in plot 2">Plot 2</button>` : ""}
             <button class="btn primary" data-start="${a.id}" ${why ? "disabled" : ""}>Start</button></span>`}
      </div>
    </div>`;
}

// Who else is fighting this encounter, with a button to tag in: one per group fighting together.
function fightingHere(a, why) {
  const mine = S.me.action?.party;
  const here = S.players.filter((p) => p.id !== S.uid && p.fight === a.id && !(mine && p.party === mine));
  const groups = [...new Map(here.map((p) => [p.party || p.id, here.filter((q) => (q.party || q.id) === (p.party || p.id))])).values()];
  return groups.map((group) => `<div class="fighting-here"><span class="small">⚔️ ${group.map((p) => esc(p.name)).join(", ")}</span>
    <button class="btn sm" data-join="${esc(group[0].id)}" ${why ? `disabled title="${esc(why)}"` : ""}>Join</button></div>`).join("");
}

// --- bank -----------------------------------------------------------------

// A strongbox's extra slots or a bag's bigger stack.
function storageText(it) {
  return it.slots ? `+${it.slots} bank slots` : `+${fmt(it.stack)} per stack`;
}

// The strongbox and bag slots, each with what else you could swap in.
function storageGear() {
  const me = S.me;
  const card = (slot, empty, outline) => {
    const id = me.equip[slot], it = id && item(id), size = (x) => x.slots || x.stack;
    const others = Object.keys(me.bank).filter((x) => item(x).slot === slot).sort((a, b) => size(item(b)) - size(item(a)))
      .map((x) => `<button class="doll-slot swap" data-equip="${x}" title="${esc(`${item(x).name}: ${storageText(item(x))}`)}">${item(x).icon}</button>`).join("");
    return `<div class="panel gear-card">
      <span class="doll-slot ${it ? "" : "empty"}" title="${esc(it ? it.name : empty)}">${it ? it.icon : glyph(outline, "#98a1b4")}</span>
      <div class="gear-text">${it ? `<b>${esc(it.name)}</b><span class="muted small">${storageText(it)}</span>` : `<span class="muted">${empty}</span>`}</div>
      ${others || it ? `<div class="swap-grid">${others}${it ? `<button class="doll-slot swap off" data-unequip="${slot}" title="Take it off">${glyph("cancel", "#98a1b4")}</button>` : ""}</div>` : ""}</div>`;
  };
  return `<div class="gear-row">${card("storage", "No strongbox", "locked-chest")}${card("bag", "No bag", "shoulder-bag")}</div>`;
}

function bank() {
  const me = S.me;
  const entries = Object.entries(me.bank).sort((x, y) => Object.keys(C.items).indexOf(x[0]) - Object.keys(C.items).indexOf(y[0]));
  if (selected && !me.bank[selected]) selected = null;
  // An item past one full stack spills into more slots: 2,500 coal shows as 1,000 + 1,000 + 500.
  const stacks = entries.flatMap(([id, q]) => {
    const parts = [];
    for (let left = q; left > 0; left -= me.stack) parts.push([id, Math.min(left, me.stack)]);
    return parts;
  });
  let slots = stacks.map(([id, q]) => `
    <button class="slot ${selected === id ? "on" : ""}" data-select="${id}" title="${esc(item(id).name)}: ${fmt(me.bank[id])}${me.bank[id] > me.stack ? ` across ${Math.ceil(me.bank[id] / me.stack)} slots` : ""}">
      <span class="qty ${q >= me.stack ? "full" : ""}">${fmt(q)}</span>${item(id).icon}<span class="nm">${esc(item(id).name)}</span>
    </button>`).join("");
  for (let i = stacks.length; i < me.slots; i++) slots += `<div class="slot empty"></div>`;
  return `
    ${storageGear()}
    <div class="bank-wrap">
      <div>
        <div class="panel">
          <h2>Bank · ${me.slots_used} / ${me.slots} slots · ${fmt(me.stack)} per stack</h2>
          <div class="slots">${slots}</div>
          <p class="small muted">Bank full:
            <button class="btn sm ${me.overflow === "city" ? "gold" : ""}" data-overflow="city">Send it to the city</button>
            <button class="btn sm ${me.overflow === "stop" ? "gold" : ""}" data-overflow="stop">Stop working</button>
            <br>Overflow earns half favour; what the city can't use is sold.</p>
        </div>
        ${favourPanel()}
        ${strongboxPanel()}
      </div>
      <div>${selected ? itemPanel(selected) : goldPanel()}</div>
    </div>`;
}

function itemPanel(id) {
  const me = S.me, it = item(id), have = me.bank[id];
  const merchant = S.city.merchant_until > serverNow();
  const price = it.value * (merchant ? 1.5 : 1);
  const others = S.players.filter((p) => p.id !== S.uid);
  const qtyBtns = (attr) => [1, 10, 100].filter((q) => q <= have).map((q) => `<button class="btn sm" ${attr}="${id}" data-qty="${q}">${q}</button>`).join("")
    + `<button class="btn sm" ${attr}="${id}" data-qty="all">All (${fmt(have)})</button>`;
  return `<div class="panel item-panel">
    <div class="ico">${it.icon}</div>
    <h3>${esc(it.name)}</h3>
    <div class="muted small">You have ${fmt(have)} · worth ${price % 1 ? price.toFixed(1) : price} gold each${merchant ? " (merchant in town!)" : ""}</div>
    ${GEAR_SLOTS.includes(it.slot) ? gearChips(it) : ""}
    ${it.slot ? equipRow(id, it) : ""}
    ${it.potion ? `<div class="row"><div class="small">${esc(it.potion.text)} for ${C.potion_charges} ${it.potion.skill === "combat" ? "fights" : "actions"}.</div>
      <button class="btn gold" data-potion="${id}">Drink</button>
      ${S.me.potions[it.potion.skill] && S.me.potions[it.potion.skill].item !== id ? `<div class="small why">Replaces your ${esc(item(S.me.potions[it.potion.skill].item).name.toLowerCase())} (${S.me.potions[it.potion.skill].charges} uses left)</div>` : ""}</div>` : ""}
    ${it.heal ? `<div class="row"><div class="small muted">Heals ${it.heal} resting between fights.</div>
      ${S.me.food === id ? `<span class="tag good">Your fighting food</span>` : `<button class="btn sm" data-food="${id}">Eat this first</button>`}</div>` : ""}
    ${it.drink ? `<div class="row small muted">+${it.drink} HP in a fight, drunk once a fight under ${Math.round(C.potion_below * 100)}% HP.</div>` : ""}
    ${it.pattern ? patternRow(id, it) : ""}
    ${it.relic ? `<div class="row small muted">Reforges masterworks with a pattern from ${esc(C.actions.find((a) => a.id === it.relic).name)}.</div>` : ""}
    ${it.food ? `<div class="row small muted">Feeds ${it.food} townsfolk for 2 days.</div>` : ""}
    ${C.city_uses[id].length
      ? `<div class="row"><div class="k">Donate to the city · +${it.value} favour each</div><div class="btns">${qtyBtns("data-donate")}</div>
          <div class="small muted">Used for ${esc(listing(C.city_uses[id]))}.</div></div>`
      : `<div class="row small muted">The city has no use for this.</div>`}
    ${others.length ? `<div class="row"><div class="k">Give to <select data-keep="give-to">${others.map((p) => `<option value="${esc(p.id)}">${esc(p.name)}</option>`).join("")}</select></div><div class="btns">${qtyBtns("data-give")}</div></div>` : ""}
    <div class="row"><div class="k">Sell</div><div class="btns">${qtyBtns("data-sell")}</div></div>
    <div class="row"><button class="btn sm" data-select="">Close</button></div>
  </div>${goldPanel()}`;
}

function listing(words) {
  return words.length < 2 ? words.join("") : `${words.slice(0, -1).join(", ")} and ${words.at(-1)}`;
}

function equipRow(id, it) {
  const [skill, level] = it.req || [];
  const short = skill && S.me.levels[skill] < level;
  return `<div class="row"><button class="btn gold" data-equip="${id}" ${short ? "disabled" : ""}>${equipLabel(it)}</button>
    ${skill ? `<div class="small ${short ? "why" : "muted"}">Needs ${esc(skillOf(skill).name.toLowerCase())} level ${level}</div>` : ""}</div>`;
}

function equipLabel(it) {
  if (it.tool || it.station) return `Use for ${skillOf(it.tool || it.station).name.toLowerCase()} (${Math.round(it.speed * 100)}% faster)`;
  return "Equip";
}

function goldPanel() {
  return `<div class="panel"><h2>Gold</h2>
    <p class="gold">${COIN} ${fmt(S.me.gold)}</p>
    <form data-form="gold" class="btns"><input type="number" min="1" data-keep="gold" placeholder="Amount" style="width:120px"><button class="btn gold">Donate to treasury</button></form>
    <p class="small muted">1 favour per gold.</p></div>`;
}

function strongboxPanel() {
  const me = S.me;
  return `<div class="panel"><h2>Strongbox${me.rented ? ` · ${me.rented} rented` : ""}</h2>
    <div class="btns"><button class="btn gold" data-rent ${me.gold < me.rent_cost ? "disabled" : ""}>+1 bank slot (${COIN} ${fmt(me.rent_cost)})</button></div>
    <p class="small muted">Yours for good. Each costs 35% more.</p></div>`;
}

function favourPanel() {
  const me = S.me;
  return `<div class="panel"><h2>Favour with the council</h2>
    <p class="favour">${FAVOUR} ${fmt(me.favour)} favour · ${fmt(me.donated)} given in total</p>
    <div class="btns"><button class="btn" data-perk="bank_slot" ${me.favour < me.perk_costs.bank_slot ? "disabled" : ""}>+1 bank slot (${fmt(me.perk_costs.bank_slot)} favour)</button></div>
    <p class="small muted">More to spend on in <button class="linkish" data-nav="council">Council &amp; threats</button>.</p></div>`;
}

// --- town -----------------------------------------------------------------

function town() {
  const city = S.city;
  const growth = city.starving ? `<span class="bad">Hungry: ${city.growth} a day</span>`
    : city.growth > 0 ? `+${city.growth} a day`
    : city.growth < 0 ? `<span class="bad">Overcrowded: ${city.growth} a day</span>`
    : `<span class="warn">Full: build houses</span>`;
  const next = city.next_tier ? `${city.next_tier.name} at ${city.next_tier.pop} people` : "Largest tier";
  let html = `<div class="stats">
    <div class="stat"><div class="k">Settlement</div><div class="v">${city.tier_name}</div><div class="note">${next}</div></div>
    <div class="stat"><div class="k">Population</div><div class="v">${city.population} <small>/ ${city.housing} homes</small></div><div class="note">${growth}</div></div>
    <div class="stat"><div class="k">Food</div><div class="v ${city.food_days < 1 ? "bad" : ""}">${city.food_days ?? 0} <small>days</small></div><div class="note">${fmt(city.food)} meals in the granary</div></div>
    <div class="stat"><div class="k">Treasury</div><div class="v gold">${fmt(city.treasury)}</div><div class="note">Day ${city.day}</div></div>
    <div class="stat"><div class="k">Defence</div><div class="v">${fmt(city.defence.total)}</div><div class="note">${city.repelled} raid${city.repelled === 1 ? "" : "s"} repelled</div></div>
    ${weatherCard()}
  </div>`;
  html += happeningsPanel();
  html += caravanPanel();
  if (city.starving) html += `<div class="banner bad">🍞<div class="grow"><b>Granary empty.</b> People are leaving, defence is down. Donate food.</div></div>`;
  if (city.merchant_until > serverNow()) html += `<div class="banner">🐪<div class="grow"><b>Merchant in town.</b> Sell prices +50% for ${countdown(city.merchant_until)}.</div></div>`;
  if (city.construction) html += siteBanner();
  html += `<div class="section-title">Buildings</div>
    <p class="small muted">Funds are safe from raiders. Building starts once a fund is full.</p>
    <div class="grid wide">${Object.entries(city.buildings).map(([key, b]) => buildingCard(key, b)).join("")}</div>`;
  html += monumentsPanel();
  html += `<div class="section-title">City stockpile</div><div class="panel">`;
  const stock = Object.entries(city.stockpile);
  html += stock.length ? `<div class="stock">${stock.map(([id, q]) => itemChip(id, q)).join("")}</div>` : `<p class="muted">Empty.</p>`;
  html += `<p class="small muted">Feeds the granary and armoury. Raiders can loot it.</p></div>`;
  return html;
}

function lookChip(id) {
  const c = C.cosmetics[id];
  if (c.kind === "colour") return `<span class="swatch" style="background:${c.value}"></span>`;
  if (c.kind === "emblem") return glyph(emblemGlyph(id), "#e7e9f0");
  return `<span class="ico">📜</span>`;
}

const emblemGlyph = (id) => C.cosmetics[id].value || C.actions.find((a) => a.id === C.cosmetics[id].boss).glyph;

function caravanPanel() {
  const c = S.me.caravan;
  if (!c) return "";
  const rows = c.wares.map((w) => {
    const price = w.skill ? ` · ${COIN} ${fmt(w.prices[w.skill])}` : "";
    const picker = w.skill ? "" : `<select data-keep="tutor-skill">${Object.keys(w.prices).map((s) =>
      `<option value="${s}">${skillOf(s).name} · ${fmt(w.prices[s])}</option>`).join("")}</select>`;
    const per = w.charges ? `next ${fmt(w.charges)} ${w.per}` : "against the coming threat";
    return `<div class="ware">${glyph(...w.glyph)}<span class="grow"><b>${esc(w.name)}</b>
      <span class="small">${w.skill ? `${skillOf(w.skill).icon} ` : ""}${esc(w.text)} · ${per}</span>${picker}</span>
      <button class="btn sm gold" data-buy="${w.id}" ${w.bought ? "disabled" : ""}>${w.bought ? "Bought" : `Buy${price}`}</button></div>`;
  });
  const look = c.look, have = look.owned || look.bought;
  rows.push(`<div class="ware">${lookChip(look.id)}<span class="grow"><b>${esc(look.name)}</b><span class="small muted">For your banner (character sheet)</span></span>
    <button class="btn sm gold" data-buy="${look.id}" ${have ? "disabled" : ""}>${have ? "Owned" : `Buy · ${COIN} ${fmt(look.price)}`}</button></div>`);
  return `<div class="panel"><h2>🐫 Caravan · leaves in ${countdown(c.until)}</h2><div class="wares">${rows.join("")}</div>
    <p class="small muted">One of each per visit. Wares boost your own work. Pricier the higher your level.</p></div>`;
}

function monumentsPanel() {
  const m = S.city.monuments, me = S.me;
  const rows = Object.entries(C.monuments).map(([key, spec]) => {
    if (spec.once && m.built.some((b) => b.kind === key)) return "";
    const head = `<span class="ico">${glyph(spec.glyph, spec.tint)}</span>`;
    if (key === "statue" && m.carving) {
      const pick = m.carving.by === S.uid
        ? `<span class="btns"><select data-keep="statue-of">${S.players.map((p) => `<option value="${esc(p.id)}">${esc(p.name)}</option>`).join("")}</select>
           <button class="btn sm gold" data-statue>Carve</button></span>`
        : `<span class="small muted">${esc(playerName(m.carving.by))} picks who it honours.</span>`;
      return `<div class="favour-option">${head}<span class="grow"><b>${spec.name}</b><span class="small muted">Funded. Who should it honour?</span></span>${pick}</div>`;
    }
    const fund = m.funds[key] || { gold: 0 };
    return `<div class="favour-option">${head}<span class="grow"><b>${spec.name}</b><span class="small muted">${esc(spec.text)}</span>
      <span class="small">${COIN} ${fmt(fund.gold)} / ${fmt(spec.cost)}</span><span class="bar"><span style="width:${fund.gold / spec.cost * 100}%"></span></span></span>
      <form data-form="monument" data-id="${key}" class="btns"><input type="number" min="1" data-keep="mon-${key}" placeholder="Gold" style="width:90px"><button class="btn sm gold" ${me.gold ? "" : "disabled"}>Give</button></form></div>`;
  }).join("");
  const built = m.built.map((b) => {
    const spec = C.monuments[b.kind];
    const donors = Object.entries(b.donors).sort((x, y) => y[1] - x[1]).map(([uid]) => esc(playerName(uid))).join(", ");
    return `<div class="report win"><b>${glyph(spec.glyph, spec.tint)} ${b.of ? `Statue of ${esc(playerName(b.of))}` : spec.name}</b> <span class="muted small">${ago(b.at)}</span><p class="small">Carved in: ${donors}</p></div>`;
  }).join("");
  return `<div class="section-title">Monuments</div><div class="panel">${rows}${built}
    <p class="small muted">Looks only. Gold here earns no favour: your name goes in the stone.</p></div>`;
}

// Progress towards a goal favour can boost. Favour doubles the next `boost` points players put
// in, so the striped stretch behind the bar (twice the boost) is where work counts double.
function boostBar(done, total, boost, tip) {
  const pct = (x) => Math.min(100, x / total * 100);
  return `<div class="bar gold thick boost-bar"${boost ? ` title="${esc(tip)}"` : ""}>${boost
    ? `<span class="boost" style="width:${pct(done + 2 * boost)}%"></span>` : ""}<span style="width:${pct(done)}%"></span></div>`;
}

// The building site: labour so far, who is helping, and ways to speed it up.
function siteBanner() {
  const city = S.city, work = city.construction, me = S.me;
  const spec = C.buildings[work.building];
  const queued = city.queue.map((key) => esc(C.buildings[key].name)).join(", ");
  const hire = S.favours.builders;
  const working = me.action?.id === "labour";
  const builders = S.players.filter((p) => p.skill === "construction" && p.doing === "Work on the building site").map((p) => esc(p.name));
  return `<div class="banner"><span class="banner-ico">${skillOf("construction").icon}</span><div class="grow">
    <div class="site-head"><b>${work.repair ? "Repairing" : "Building"} ${esc(spec.name)}</b>
      <span class="muted small">${fmt(work.labour)} / ${fmt(work.needed)} labour</span>
      <span class="btns">
        ${working ? `<span class="btn sm working">Working</span>` : `<button class="btn sm primary" data-start="labour">Work on it</button>`}
        ${hire.why ? "" : `<button class="btn sm gold" data-favour="builders" ${me.favour < hire.cost ? "disabled" : ""} title="×2 labour and XP for the next ${hire.labour}">Master builder ${FAVOUR} ${fmt(hire.cost)}</button>`}
      </span></div>
    ${boostBar(work.labour, work.needed, hire.boost, "Master builder: this stretch builds twice as fast")}
    <div class="small muted" style="margin-top:6px">${builders.length ? `On site: ${builders.join(", ")}. ` : ""}Townsfolk +${fmt(city.townsfolk_labour)}/h.${queued ? ` Next: ${queued}.` : ""}</div>
  </div></div>`;
}

// "Rain: farming 10% faster. Clear skies in 3h 20m."
function weatherTip(w) {
  return `${w.name}: ${w.text.charAt(0).toLowerCase()}${w.text.slice(1)}. ${w.next_name} in ${dur(w.until - serverNow())}.`;
}

function weatherCard() {
  const h = S.happenings, w = h.weather;
  return `<div class="stat" title="${esc(weatherTip(w))}"><div class="k">${h.season.icon} ${h.season.name}, day ${h.season.day}</div>
    <div class="v">${w.icon} <small>${esc(w.name)}</small></div>
    <div class="note" title="${esc(forecastTip(w))}">${w.next_icon} ${esc(w.next_name)} in ${countdown(w.until)}</div></div>`;
}

// "Fog in 3h 20m: scouting 30% and hunting 10% slower."
function forecastTip(w) {
  return `${w.next_name} in ${dur(w.until - serverNow())}: ${w.next_text.charAt(0).toLowerCase()}${w.next_text.slice(1)}.`;
}

// Everything going on in the city right now, and what anyone can do about it.
function happeningsPanel() {
  const h = S.happenings, me = S.me, city = S.city;
  const rows = [];
  if (h.weather.kind !== "clear") rows.push(`<div class="happening"><span class="ico">${h.weather.icon}</span><span class="grow"><b>${esc(h.weather.name)}</b><span class="small muted">${esc(h.weather.text)}</span></span></div>`);
  if (h.cold) rows.push(`<div class="happening bad"><span class="ico">🥶</span><span class="grow"><b>Out of firewood</b><span class="small muted">City eats 50% more. Donate logs.</span></span></div>`);
  for (const e of h.effects) {
    const hire = e.offer ? `<button class="btn sm gold" data-hire ${city.treasury < e.cost ? "disabled" : ""}>Hire for ${fmt(e.cost)} gold</button>` : "";
    rows.push(`<div class="happening"><span class="ico">${e.icon}</span><span class="grow"><b>${esc(e.name)}</b>
      <span class="small muted">${esc(e.text)} · ${countdown(e.until)} left</span></span>${hire}</div>`);
  }
  for (const p of h.problems) {
    let help = "";
    if (p.action) {
      const a = C.actions.find((x) => x.id === p.action);
      help = `<span class="small muted">${fmt(p.work)} / ${fmt(p.needed)} done</span>
        <button class="btn sm primary" data-nav="skill:${a.skill}">${esc(a.name)}</button>`;
    }
    const gifts = Object.entries(p.need || {}).map(([id, need]) => {
      const missing = p.missing[id] || 0;
      const mine = Math.min(missing, me.bank[id] || 0), stores = Math.min(missing, city.stockpile[id] || 0);
      return `<div class="fund-row">${costChip(item(id).icon, item(id).name, need, need - missing)}<span class="btns">
        ${mine ? `<button class="btn sm gold" data-aid="${p.kind}" data-item="${id}" data-source="bank">Give ${fmt(mine)}</button>` : ""}
        ${stores ? `<button class="btn sm" data-aid="${p.kind}" data-item="${id}" data-source="city">Stockpile ${fmt(stores)}</button>` : ""}
      </span></div>`;
    }).join("");
    rows.push(`<div class="happening bad"><span class="ico">${p.icon}</span><span class="grow"><b>${esc(p.name)}</b>
      <span class="small muted">${esc(p.text)}${p.until ? ` · ${countdown(p.until)} left` : ""}</span>${gifts}</span>${help}</div>`);
  }
  if (!rows.length) return "";
  return `<div class="panel"><h2>Happenings</h2><div class="happenings">${rows.join("")}</div></div>`;
}

// What's speeding up, slowing down or blocking this skill right now.
function skillHappenings(skill) {
  const h = S.happenings, banners = [];
  const touches = (src) => ["speed", "yield", "xp"].some((k) => src[k] && skill in src[k]) || (src.block && skill in src.block);
  const good = (src) => (src.speed?.[skill] ?? 1) < 1 || (src.yield?.[skill] ?? 1) > 1 || (src.xp?.[skill] ?? 1) > 1;
  const banner = (tone, icon, name, text, button = "") => banners.push(`<div class="banner ${tone} happening-banner">
    <span class="banner-ico">${icon}</span><div class="grow"><b>${esc(name)}</b><div class="small">${esc(text)}</div></div>${button}</div>`);
  if (touches(h.weather)) banner(good(h.weather) ? "good" : "bad", h.weather.icon, h.weather.name, h.weather.text);
  for (const e of h.effects) if (touches(e)) banner(good(e) ? "good" : "bad", e.icon, e.name, e.text);
  for (const p of h.problems) {
    if (!C.problems[p.kind] || !touches(C.problems[p.kind])) continue;
    const fix = p.action && C.actions.find((x) => x.id === p.action);
    const button = fix ? (fix.skill === skill ? `<button class="btn primary" data-start="${fix.id}">${esc(fix.name)}</button>`
        : `<button class="btn" data-nav="skill:${fix.skill}">${skillOf(fix.skill).icon} ${esc(fix.name)}</button>`)
      : `<button class="btn" data-nav="town">Help on the Town square</button>`;
    banner("bad", p.icon, p.name, p.text, button);
  }
  for (const b of S.me.boosts.filter((x) => x.skill === skill)) {
    const w = C.wares[b.ware];
    banner("good", glyph(...w.glyph), w.name, `${w.text} · ${b.left ? `${fmt(b.left)} ${w.per} left` : "until the threat lands"}`);
  }
  return banners.join("");
}

function buildingCard(key, b) {
  const spec = C.buildings[key], city = S.city, me = S.me;
  const tags = {
    building: `<span class="tag gold">Under construction</span>`,
    queued: `<span class="tag good">Funded · queued</span>`,
    max: `<span class="tag good">Fully built</span>`,
    capped: `<span class="tag">Needs a bigger settlement</span>`,
  };
  let body = tags[b.status] ? `<div>${tags[b.status]}</div>` : "";
  if (b.status === "funding" || b.status === "queued") {
    body += `<div class="fund">${Object.entries(b.target).map(([id, need]) => {
      const missing = b.missing[id] || 0;
      const gold = id === "gold";
      const mine = Math.min(missing, gold ? me.gold : me.bank[id] || 0);
      const stores = Math.min(missing, gold ? city.treasury : city.stockpile[id] || 0);
      const chip = costChip(gold ? COIN : item(id).icon, gold ? "Gold" : item(id).name, need, need - missing);
      return `<div class="fund-row">${chip}<span class="btns">
        ${mine ? `<button class="btn sm gold" data-fund="${key}" data-item="${id}" data-source="bank" title="From your ${gold ? "purse" : "bank"}, earns favour">Give ${fmt(mine)}</button>` : ""}
        ${stores ? `<button class="btn sm" data-fund="${key}" data-item="${id}" data-source="city" title="From the city's ${gold ? "treasury" : "stockpile"}">${gold ? "Treasury" : "Stockpile"} ${fmt(stores)}</button>` : ""}
      </span></div>`;
    }).join("")}</div>`;
  }
  body += fittingRows(key, b);
  const levelText = b.cap < spec.max ? `Lv ${b.level} / ${b.cap} (${city.tier_name.toLowerCase()} cap)` : `Lv ${b.level} / ${spec.max}`;
  return `<div class="action building ${b.damaged ? "damaged" : ""}">
    <div class="top"><div class="ico">${spec.icon}</div><div>
      <div class="name">${esc(spec.name)} <span class="lv muted">${levelText}</span> ${b.damaged ? `<span class="tag bad">Damaged</span>` : ""}</div>
      <div class="sub">${esc(spec.effect)}</div>
    </div></div>${body}</div>`;
}

// Fittings Construction makes for this building: fitted, ready to fit, or waiting on a level.
function fittingRows(key, b) {
  const rows = C.fittings.filter((f) => f.building === key).map((f) => {
    const it = item(f.id), recipe = C.actions.find((a) => a.id === `make_${f.id}`);
    let state;
    if (b.fittings.includes(f.id)) {
      state = b.damaged ? `<span class="tag bad">Paused</span>` : `<span class="tag good">Fitted</span>`;
    } else if (b.level < f.level) {
      state = `<span class="tag">Needs Lv ${f.level}</span>`;
    } else {
      const mine = S.me.bank[f.id] || 0, stores = S.city.stockpile[f.id] || 0;
      state = mine || stores
        ? `${mine ? `<button class="btn sm gold" data-install="${f.id}" data-source="bank" title="From your bank, earns favour">Fit</button>` : ""}
           ${stores ? `<button class="btn sm" data-install="${f.id}" data-source="city" title="From the city's stockpile">Fit from stockpile</button>` : ""}`
        : `<span class="muted small">Construction ${recipe.level}</span>`;
    }
    return `<div class="fitting-row"><span class="fit-ico">${it.icon}</span>
      <span class="fitting-text"><b>${esc(f.name)}</b> <span class="muted small">${esc(f.effect)}</span></span>
      <span class="btns">${state}</span></div>`;
  });
  return rows.length ? `<div class="fittings">${rows.join("")}</div>` : "";
}

// --- council --------------------------------------------------------------

function pips(level) {
  return `<span class="pips" title="Intel level ${level} of 3">${[1, 2, 3].map((i) => `<i class="${i <= level ? "on" : ""}"></i>`).join("")}</span>`;
}

function reconText(ev) {
  const points = `${fmt(ev.recon)} / ${fmt(ev.recon_full)} points`;
  if (ev.intel >= 3) return `${points} · complete`;
  if (ev.recon_next <= 0) return `${points} · next level opens closer to the threat`;
  return `${points} · ${fmt(ev.recon_next)} to the next level`;
}

function council() {
  const ev = S.upcoming, city = S.city, me = S.me;
  let html = "";
  if (!ev) {
    html += `<div class="panel"><h2>All quiet</h2><p class="muted">No news on the roads.</p></div>`;
  } else {
    const threat = ["raid", "dragon"].includes(ev.kind);
    html += `<div class="panel ${threat ? "threat-card" : ""}">
      <h2>${eventIcon(ev.kind)} ${threat ? "Threat" : "News"} · intel ${pips(ev.intel)}</h2>
      <div class="headline">${esc(ev.headline)}</div>
      <div class="kv">
        <span class="k">Expected</span><span>${eventWhen(ev)}</span>
        ${ev.range ? `<span class="k">Strength</span><span>${ev.strength ?? `${ev.range[0]}–${ev.range[1]}`}</span>` : ""}
        ${ev.trait ? `<span class="k">Scouts say</span><span>${esc(ev.trait)}</span>` : ""}
        ${ev.camp ? `<span class="k">Their camp</span><span>Found · sabotage it in Combat${ev.sabotage ? ` (-${ev.sabotage}% so far)` : ""}</span>` : ""}
        <span class="k">Reconnaissance</span><span>${reconText(ev)}</span>
      </div>
      ${ev.recon_full && ev.intel < 3 ? boostBar(ev.recon, ev.recon_full, S.favours.informant.boost, "Informant: this stretch scouts twice as fast") : ""}`;
    if (threat) {
      const strength = ev.strength ?? (ev.range ? `${ev.range[0]}–${ev.range[1]}` : "?");
      html += `<div class="vs"><div class="side"><span class="muted small">Our defence</span><b>${fmt(city.defence.total)}</b></div><span class="muted">vs</span><div class="side"><span class="muted small">Raiders</span><b>${strength}</b></div></div>`;
    }
    html += `</div>`;
  }
  html += favourSpends();
  if (ev && ["raid", "dragon"].includes(ev.kind)) html += raidPrep(ev);
  html += `<div class="section-title">Past events</div>`;
  if (!S.history.length) html += `<p class="muted">Nothing has happened yet.</p>`;
  for (const h of S.history) {
    if (!h.report) continue;
    const fight = ["raid", "dragon"].includes(h.kind);
    const tone = fight ? (h.report.title.startsWith("Victory") ? "win" : "loss")
      : { fortune: "win", hardship: "loss", minor: "loss" }[h.track] || "";
    html += `<div class="report ${tone}">
      <b>${h.report.icon || eventIcon(h.kind)} ${esc(h.report.title)}</b> <span class="muted small">${ago(h.at)}</span>
      ${fight ? `<p class="muted">Defence ${fmt(h.report.defence)} vs ${h.kind === "dragon" ? "the dragon" : "raiders"} ${fmt(h.report.attack)}${h.report.garrison.length ? ` · garrison: ${h.report.garrison.map((g) => esc(g.name)).join(", ")}` : ""}</p>` : ""}
      ${h.report.lines.map((l) => `<p>${esc(l)}</p>`).join("")}
    </div>`;
  }
  return html;
}

function favourSpends() {
  const f = S.favours, me = S.me;
  const option = (kind, icon, title, text) => {
    const o = f[kind];
    const short = !o.why && me.favour < o.cost;
    return `<div class="favour-option">
      <span class="ico">${icon}</span>
      <span class="grow"><b>${title}</b><span class="small muted">${text}</span></span>
      <span class="btns"><button class="btn sm gold" data-favour="${kind}" ${o.why || short ? "disabled" : ""}
        title="${esc(o.why || (short ? "Not enough favour" : ""))}">${FAVOUR} ${fmt(o.cost)}</button></span>
    </div>`;
  };
  return `<div class="panel"><h2>Spend favour on the city · you have ${FAVOUR} ${fmt(me.favour)}</h2>
    ${option("builders", "🏗️", "Hire a master builder", f.builders.why ? esc(f.builders.why) + "." : `×2 labour and XP for the next ${f.builders.labour}${f.builders.boost ? ` (${fmt(f.builders.boost)} left)` : ""}. Price rises per hire.`)}
    ${option("informant", "🕵️", "Pay an informant", f.informant.why ? esc(f.informant.why) + "." : `×2 recon and XP for the next ${f.informant.recon}${f.informant.boost ? ` (${fmt(f.informant.boost)} left)` : ""}. Price rises per hire.`)}
    ${option("sergeant", "📯", "Hire a drill sergeant", f.sergeant.why ? esc(f.sergeant.why) + "." : `×2 drill and XP for the next ${f.sergeant.drill}${f.sergeant.boost ? ` (${fmt(f.sergeant.boost)} left)` : ""}. Price rises per hire.`)}
  </div>`;
}

function raidPrep(ev) {
  const city = S.city, me = S.me, d = city.defence;
  const names = { mercenaries: "Hired sellswords", ward: "Divine ward (temple)", rallied: "Rallied militia (favour)", drilled: "Drilled militia", townsfolk: "Townsfolk with pitchforks", walls: "Walls", militia: "Paid guards (barracks)", weapons: "Swords the guards hold", shields: "Shields the guards hold", arrows: "Arrows", garrison: "Garrison" };
  const full = d.posts * d.wage, owed = Math.max(0, full - d.wages);
  const reqs = (ev.requests || []).map((r) => {
    const mine = me.bank[r.item] || 0;
    return `<div class="req"><span>${item(r.item).icon}</span><span>${esc(r.label)} <span class="muted small">${fmt(r.have)} / ${fmt(r.want)}</span></span>
      ${mine ? `<button class="btn sm gold" data-donate="${r.item}" data-qty="all">Give ${fmt(mine)}</button>` : "<span></span>"}
      <div class="bar"><span style="width:${Math.min(100, r.have / r.want * 100)}%"></span></div></div>`;
  }).join("");
  return `<div class="cols">
    <div class="panel"><h2>Council requests</h2>${reqs}
      <p class="small muted">Stockpile gear arms the defenders, best first. Fights use up arrows and break some gear.</p></div>
    <div class="panel"><h2>Guards · ${d.guards} / ${d.posts} paid</h2>
      <p class="small">Wage chest ${COIN} ${fmt(d.wages)} / ${fmt(full)} · ${d.wage} gold a guard per threat</p>
      <div class="bar"><span style="width:${full ? Math.min(100, d.wages / full * 100) : 0}%"></span></div>
      <div class="btns" style="margin-top:8px">
        <button class="btn sm gold" data-wages="bank" ${!owed || !me.gold ? "disabled" : ""}>Pay ${COIN} ${fmt(Math.min(owed, me.gold))}</button>
        <button class="btn sm" data-wages="city" ${!owed || city.treasury < 1 ? "disabled" : ""}>From the treasury (${fmt(city.treasury)})</button></div>
      <p class="small muted">Only paid guards stand, and only they hold the armoury's swords and shields. Paying earns favour.</p>
      <h2 style="margin-top:16px">Defence</h2>
      <table class="parts">${Object.entries(d.parts).filter(([k, v]) => k !== "rallied" || v).map(([k, v]) => `<tr><td>${names[k]}</td><td>${fmt(v)}</td></tr>`).join("")}
      ${d.starving ? `<tr><td class="bad">Hungry (×0.8)</td><td></td></tr>` : ""}</table>
      <h2 style="margin-top:16px">Garrison</h2>
      <p class="small">${d.garrison.length ? d.garrison.map((g) => `${esc(g.name)} (${g.power})`).join(", ") : `<span class="muted">Nobody yet.</span>`}</p>
      ${me.garrison ? `<button class="btn" data-garrison="0">Leave the garrison</button>`
        : `<button class="btn primary" data-garrison="1">Stand guard (+${me.power})</button>`}
      <p class="small muted">Keep working while on guard. Victory earns favour and combat XP.</p>
    </div></div>`;
}

// --- work orders ------------------------------------------------------------

const ORDER_ICON = () => glyph("scroll-unfurled", "#e3c060");

// An order you could pick up: open, not yours, not claimed by someone else, and your level is high enough.
function canTake(o) {
  if (o.status !== "open" || o.by === S.uid) return false;
  if (o.kind === "craft" && o.claimed && o.claimed !== S.uid) return false;
  return S.me.levels[o.skill] >= o.level;
}

// Toasts for new orders you can take, and for things delivered to you. Nothing on the first load.
function orderNews(state) {
  const orders = state.orders || [], uid = state.uid;
  if (seenOrders) {
    for (const o of orders) {
      if (!seenOrders.has(o.id) && o.by !== uid && state.me && state.me.levels[o.skill] >= o.level && o.status === "open") {
        toast(`📜 ${item(o.item).name}${o.qty > 1 ? ` ×${fmt(o.qty)}` : ""} · ${fmt(o.reward)} gold`, "level");
      }
      const was = deliveredSeen[o.id];
      if (o.by === uid && was !== undefined && o.delivered > was) toast(`📦 ${item(o.item).name} ×${fmt(o.delivered - was)}`, "good");
      const got = (o.earned || {})[uid] || 0, had = earnedSeen[o.id];
      if (had !== undefined && got > had) toast(`🤝 ${item(o.item).name} · +${fmt(got - had)} gold`, "good");
    }
  }
  seenOrders = new Set(orders.map((o) => o.id));
  deliveredSeen = Object.fromEntries(orders.map((o) => [o.id, o.delivered]));
  earnedSeen = Object.fromEntries(orders.map((o) => [o.id, (o.earned || {})[uid] || 0]));
}

// What one run of a recipe takes right now: a lit fire pays its log (the forge a coal too).
const runInputs = (a) => S.me.fuelled?.[a.id] || a.inputs;
const firePays = (a, id, qty) => `the ${C.fires[a.fire].name.toLowerCase()} pays ${fmt(qty)}`;

// A reagent the fire pays outright: struck through, nothing to put in.
function paidSlot(a, id, qty) {
  return `<div class="ro-slot paid" title="${esc(`${item(id).name}: ${firePays(a, id, qty)}`)}"><span class="doll-slot empty-req">${item(id).icon}</span>
    <span class="ro-have muted"><s>${fmt(qty)}</s></span><span class="ro-name">${esc(item(id).name)}</span></div>`;
}

// Recipe slots on a crafting order. Anyone can put reagents in the pool; the crafter brings the rest.
function orderSlots(o) {
  const a = C.actions.find((x) => x.id === o.action), out = a.outputs[o.item], ins = runInputs(a);
  const left = Math.ceil((o.qty - o.delivered) / out), all = Math.ceil(o.qty / out);
  const worth = Object.entries(ins).reduce((sum, [id, per]) => sum + item(id).value * per, 0);
  return Object.entries(a.inputs).map(([id, per]) => {
    const name = item(id).name, pool = o.provided[id] || 0, have = S.me.bank[id] || 0;
    if (o.status !== "open") {
      return `<div class="ro-slot open"><span class="doll-slot empty-req" title="${esc(name)}">${item(id).icon}</span>
        <span class="ro-have muted">×${fmt(per * all)}</span><span class="ro-name">${esc(name)}</span></div>`;
    }
    const need = (ins[id] || 0) * left;
    if (!need) return paidSlot(a, id, per * left);
    const who = Object.entries(o.gave || {}).filter(([, items]) => items[id]).map(([uid, items]) => `${playerName(uid)} ${fmt(items[id])}`);
    const tip = [`${name}: ${fmt(pool)} / ${fmt(need)}`, ...(need < per * left ? [firePays(a, id, per * left - need)] : []), ...who].join(" · ");
    if (pool >= need) {
      return `<div class="ro-slot filled" title="${esc(tip)}"><span class="doll-slot">${item(id).icon}
        <span class="swap-qty">${fmt(need)}</span><span class="tick">✓</span></span><span class="ro-name">${esc(name)}</span></div>`;
    }
    const give = Math.min(have, need - pool);
    // What putting them in pays you once they're crafted: your value's slice of the reagents' share.
    const share = o.by === S.uid ? 0 : Math.round(o.reward / o.qty * out * C.input_share * item(id).value / worth * give);
    const fill = give ? `${tip} · +${fmt(give)}${share ? ` → ${fmt(share)} gold` : ""}` : `${tip} · 🎒 0`;
    return `<div class="ro-slot open"><button class="doll-slot empty-req" data-order-fill="${o.id}" data-item="${id}" ${give ? "" : "disabled"} title="${esc(fill)}">${item(id).icon}</button>
      <span class="ro-have ${pool + have < need ? "bad" : "good"}">${fmt(pool)} / ${fmt(need)}</span><span class="ro-name">${esc(name)}</span></div>`;
  }).join("");
}

function orderCard(o) {
  const it = item(o.item), mine = o.by === S.uid, skill = skillOf(o.skill);
  const short = S.me.levels[o.skill] < o.level, have = S.me.bank[o.item] || 0, left = o.qty - o.delivered;
  const progress = o.qty > 1 || o.kind === "gather"
    ? `<div class="small muted">${fmt(o.delivered)} / ${fmt(o.qty)}${o.kind === "gather" && Object.keys(o.from).length
        ? ` · ${Object.entries(o.from).map(([uid, n]) => `${esc(playerName(uid))} ${fmt(n)}`).join(", ")}` : ""}</div>
       <div class="bar"><span style="width:${o.delivered / o.qty * 100}%"></span></div>` : "";
  let buttons = "", status = "";
  if (o.status !== "open") {
    status = `<span class="tag ${o.status === "done" ? "good" : ""}">${{ done: "Done", cancelled: "Cancelled", expired: "Expired" }[o.status]}</span>`;
    if (mine && !o.held) buttons = `<button class="btn" data-order-remove="${o.id}">Remove</button>`;
  } else if (mine) {
    buttons = `<button class="btn danger" data-order-cancel="${o.id}">Cancel</button>`;
    if (o.claimed) status = `<span class="tag">${esc(playerName(o.claimed))}</span>`;
  } else if (o.kind === "gather") {
    buttons = `<button class="btn primary" data-order-deliver="${o.id}" ${have ? "" : "disabled"}>Deliver ${fmt(Math.min(have, left))}</button>`;
  } else if (o.claimed && o.claimed !== S.uid) {
    status = `<span class="tag">${esc(playerName(o.claimed))}</span>`;
  } else {
    const working = S.me.action?.order === o.id;
    const why = short ? `Needs ${skill.name.toLowerCase()} ${o.level}` : S.me.blocked[o.action] && !working
      && !S.me.blocked[o.action].startsWith("Out of") ? S.me.blocked[o.action] : "";
    buttons = `${o.claimed === S.uid ? `<button class="btn" data-order-drop="${o.id}">Drop</button>` : ""}
      ${have ? `<button class="btn" data-order-deliver="${o.id}">Deliver ${fmt(Math.min(have, left))}</button>` : ""}
      ${working ? `<span class="tag gold">Crafting</span>` : `<button class="btn primary" data-order-work="${o.id}" ${why ? `disabled title="${esc(why)}"` : ""}>Craft it</button>`}`;
  }
  const reward = o.kind === "gather" ? `${fmt(Math.round(o.reward / o.qty))} each` : fmt(o.reward);
  return `<div class="action order">
    <div class="top"><div class="ico">${it.icon}</div><div>
      <div class="name">${o.kind === "gather" ? "Wanted: " : ""}${esc(it.name)}${o.qty > 1 ? ` ×${fmt(o.qty)}` : ""}</div>
      <div class="sub">${mine ? "Yours" : esc(playerName(o.by))} · ${ago(o.at)}${o.held ? ` · ${fmt(o.held)} waiting for bank space` : ""}</div></div>
      <span class="ro-req ${short && !mine ? "bad" : ""}" title="${esc(`${skill.name} ${o.level}`)}">${skill.icon} ${o.level}</span></div>
    ${o.kind === "craft" ? `<div class="ro-slots">${orderSlots(o)}</div>` : ""}
    ${Object.keys(o.earned || {}).length ? `<div class="small muted">🤝 ${Object.entries(o.earned).map(([uid, n]) => `${esc(playerName(uid))} ${fmt(n)}`).join(", ")}</div>` : ""}
    ${progress}
    <div class="foot"><span class="item-chip ro-reward">${COIN} ${reward}</span>${status}<span class="btns">${buttons}</span></div>
  </div>`;
}

function orderPicker(list) {
  const d = draft, actions = Object.entries(list).map(([id, action]) => [id, C.actions.find((x) => x.id === action)]);
  const skills = [...new Set(actions.map(([, a]) => a.skill))];
  const picked = d.item && actions.find(([id]) => id === d.item)?.[1];
  d.skill = skills.includes(d.skill) ? d.skill : picked?.skill || skills[0];
  const inSkill = actions.filter(([, a]) => a.skill === d.skill);
  const groups = [...new Set(inSkill.map(([, a]) => a.group).filter(Boolean))];
  if (!groups.includes(d.group)) d.group = picked?.skill === d.skill && picked.group || groups[0];
  const q = (d.search || "").trim().toLowerCase();
  const shown = q ? actions.filter(([id]) => item(id).name.toLowerCase().includes(q))
    : inSkill.filter(([, a]) => !groups.length || a.group === d.group);
  const others = S.players.filter((p) => p.id !== S.uid);
  const tiles = shown.sort((x, y) => x[1].level - y[1].level).map(([id, a]) => {
    const makers = others.filter((p) => p.levels[a.skill] >= a.level).length;
    const tip = `${item(id).name} · ${skillOf(a.skill).name} ${a.level}${d.kind === "craft" ? ` · 👥 ${makers}` : ""}`;
    return `<button class="doll-slot swap pick ${d.item === id ? "on" : ""} ${d.kind === "craft" && !makers ? "nobody" : ""}" data-draft-item="${id}" title="${esc(tip)}">
      ${item(id).icon}<span class="pick-name">${esc(item(id).name)}${d.kind === "craft" ? ` <span class="muted">👥 ${makers}</span>` : ""}</span><span class="pick-lvl">${a.level}</span></button>`;
  }).join("");
  return `<div class="picker">
    <div class="pick-skills">${skills.map((k) => `<button class="pick-skill ${!q && k === d.skill ? "on" : ""}" data-draft-skill="${k}" title="${esc(skillOf(k).name)}">${skillOf(k).icon}</button>`).join("")}
      <input type="text" data-keep="order-search" placeholder="🔍" value="${esc(d.search || "")}"></div>
    ${groups.length && !q ? `<div class="tabs sm">${groups.map((g) => `<button class="tab ${g === d.group ? "on" : ""}" data-draft-group="${esc(g)}">${esc(g)}</button>`).join("")}</div>` : ""}
    <div class="swap-grid pick-grid">${tiles || `<span class="muted small">—</span>`}</div></div>`;
}

function orderComposer() {
  const d = draft, list = d.kind === "craft" ? C.order_recipes : C.order_raw;
  let slots = "", maker = "";
  const a = d.item && C.actions.find((x) => x.id === list[d.item]);
  if (a) {
    const smiths = S.players.filter((p) => p.id !== S.uid && p.levels[a.skill] >= a.level).length;
    maker = `<div class="small muted" title="${esc(`${skillOf(a.skill).name} ${a.level} · ${smiths} can make it`)}">${skillOf(a.skill).icon} ${a.level} · 👥 ${smiths}</div>`;
    if (d.kind === "craft") {
      const runs = Math.ceil(d.qty / a.outputs[d.item]), ins = runInputs(a);
      slots = Object.entries(a.inputs).map(([id, per]) => {
        const need = (ins[id] || 0) * runs, have = S.me.bank[id] || 0, on = d.provide.includes(id);
        if (!need) return paidSlot(a, id, per * runs);
        return `<div class="ro-slot ${on ? "filled" : "open"}"><button class="doll-slot ${on ? "on" : "empty-req"}" data-provide="${id}"
            ${!on && have < need ? `disabled title="${esc(`${item(id).name}: ${fmt(have)} / ${fmt(need)}`)}"` : `title="${esc(item(id).name)}"`}>
            ${item(id).icon}${on ? `<span class="tick">✓</span>` : ""}</button>
          <span class="ro-have ${have < need ? "bad" : "good"}">${fmt(have)} / ${fmt(need)}</span><span class="ro-name">${esc(item(id).name)}</span></div>`;
      }).join("");
    }
  }
  const gold = d.kind === "craft" ? d.reward : d.reward * d.qty;
  const why = !a ? "" : d.qty > C.order_max[d.kind] ? `Max ${fmt(C.order_max[d.kind])}`
    : gold > S.me.gold ? `Gold ${fmt(S.me.gold)} / ${fmt(gold)}` : "";
  return `<div class="panel compose">
    <div class="tabs" style="margin:0 0 14px"><button class="tab ${d.kind === "craft" ? "on" : ""}" data-draft-kind="craft">Craft</button>
      <button class="tab ${d.kind === "gather" ? "on" : ""}" data-draft-kind="gather">Materials</button></div>
    ${orderPicker(list)}
    <div class="compose-grid">
      <div>${a ? `<div class="ro-pick"><span class="doll-slot on">${item(d.item).icon}</span><div><b>${esc(item(d.item).name)}</b>${maker}</div></div>`
          : `<div class="ro-pick"><span class="doll-slot empty-req"></span><span class="muted">—</span></div>`}
        <div class="stepper">×<input type="number" min="1" max="${C.order_max[d.kind]}" value="${d.qty}" data-draft="qty">
          <span class="muted small">max ${fmt(C.order_max[d.kind])}</span></div></div>
      <div>${slots ? `<div class="ro-slots big">${slots}</div>` : ""}</div>
      <div><div class="reward-input">${COIN}<input type="number" min="0" value="${d.reward}" data-draft="reward">
          ${d.kind === "gather" ? `<span class="muted small">each · ${fmt(gold)}</span>` : ""}</div>
        <div class="btns"><button class="btn primary" data-order-post ${a && !why ? "" : "disabled"}>Post</button>
          ${why ? `<span class="why">${esc(why)}</span>` : ""}</div></div>
    </div></div>`;
}

function orders() {
  const all = S.orders || [], open = all.filter((o) => o.status === "open");
  const takeable = open.filter(canTake), yours = all.filter((o) => o.by === S.uid);
  const lists = { take: takeable, open, yours };
  if (!lists[orderTab]) orderTab = "take";
  const shown = lists[orderTab];
  const old = orderTab === "yours" && yours.some((o) => o.status !== "open" && !o.held);
  const tab =(key, label, n) => `<button class="tab ${orderTab === key ? "on" : ""}" data-otab="${key}">${label}${n ? ` <b class="badge">${n}</b>` : ""}</button>`;
  return `<div class="panel"><div class="skill-head"><div class="big">${ORDER_ICON()}</div>
      <div class="info"><h2>Work orders</h2></div>
      <button class="btn ${draft ? "" : "primary"}" data-order-new>${draft ? "Close" : "New order"}</button></div></div>
    ${draft ? orderComposer() : ""}
    <div class="tabs">${tab("take", "For you", takeable.length)}${tab("open", "All open", 0)}${tab("yours", "Yours", 0)}
      ${old ? `<button class="btn" data-order-clear>Clear</button>` : ""}</div>
    ${shown.length ? `<div class="grid wide">${shown.map(orderCard).join("")}</div>` : `<p class="muted">None.</p>`}`;
}

// --- board & roster -------------------------------------------------------

function board() {
  const msgs = S.board.map((m) => `<div class="msg"><span class="who">${crest(S.players.find((p) => p.id === m.who)?.look, 18)} ${esc(playerName(m.who))}</span><span class="when">${ago(m.at)}</span>
    ${m.who === S.uid && m.id ? `<button class="msg-delete" data-unpost="${m.id}" title="Delete this message">✕</button>` : ""}
    <div class="text">${esc(m.text)}</div></div>`).join("");
  const ledger = [...S.ledger].reverse().map((l) => `<li>${esc(l.text)}<span class="when">${ago(l.at)}</span></li>`).join("");
  return `<div class="cols">
    <div class="panel"><h2>Town board</h2>
      <div class="msgs">${msgs || `<p class="muted">No messages yet.</p>`}</div>
      <form data-form="board"><textarea data-keep="board" maxlength="500" placeholder="Write to the guild…"></textarea>
      <p><button class="btn primary">Post</button></p></form></div>
    <div class="panel"><h2>Town ledger</h2><ul class="ledger">${ledger || `<li class="muted">Nothing recorded yet.</li>`}</ul></div>
  </div>`;
}

function joinButton(p) {
  if (!p.fight || p.id === S.uid || (p.party && p.party === S.me?.action?.party)) return "";
  const why = S.me?.blocked[p.fight];
  return ` <button class="btn sm primary" data-join="${esc(p.id)}" ${why ? `disabled title="${esc(why)}"` : ""}>⚔️ Join</button>`;
}

function roster() {
  return `<div class="grid wide">${S.players.map((p) => {
    const cls = C.classes[p.cls];
    const levels = C.skills.filter((s) => !s.class || s.class === p.cls).map((s) => `<div class="lvl ${p.levels[s.id] <= 1 ? "low" : ""}" title="${s.name} level ${p.levels[s.id]}"><span class="ico">${s.icon}</span><span class="nm">${s.name}</span><b>${p.levels[s.id]}</b></div>`).join("");
    return `<div class="panel person"><div class="top"><span class="ico">${cls.icon}</span><div>
      ${titled(p)} <span class="muted small">${cls.name} · total level ${p.total} · ${esc(p.look.home)}</span>
      <div class="small">${p.doing ? `${skillOf(p.skill).icon} ${esc(p.doing)}` : `<span class="muted">Idle</span>`}${p.garrison ? ` · <span class="tag warn">On guard</span>` : ""}</div>
      <div class="small favour">${FAVOUR} ${fmt(p.donated)} given to the city</div></div></div>
      <div class="levels">${levels}</div>
      <p><button class="btn sm" data-nav="character:${esc(p.id)}">Character sheet</button>${joinButton(p)}</p></div>`;
  }).join("")}</div>`;
}

// Patch notes, newest first. The badge stays until this browser has opened the page since the last release.
const NOTE_KINDS = { new: ["✨", "good", "New"], balance: ["⚖️", "gold", "Balance"], fix: ["🔧", "warn", "Fixed"] };
const notesKey = () => C.patch_notes[0] ? `${C.patch_notes[0].date} ${C.patch_notes[0].title}` : "";
const notesUnread = () => !!C.patch_notes[0] && remember("notes") !== notesKey();

function notes() {
  return C.patch_notes.map((release) => `<div class="panel"><h2>${esc(release.title)} <span class="muted small">${esc(release.date)}</span></h2>
    <ul class="ledger">${release.notes.map(([kind, text]) => {
      const [icon, tone, label] = NOTE_KINDS[kind];
      return `<li><span class="tag ${tone}" title="${label}">${icon}</span> ${esc(text)}</li>`;
    }).join("")}</ul></div>`).join("");
}

// --- character sheet -----------------------------------------------------

const SLOT_NAMES = { weapon: "Weapon", shield: "Shield", helmet: "Helmet", body: "Body", legs: "Legs" };

function characterSheet(uid) {
  const mine = uid === S.uid;
  const p = mine ? { ...S.players.find((x) => x.id === uid), ...S.me } : S.players.find((x) => x.id === uid);
  if (!p) return `<p class="muted">No such adventurer.</p>`;
  const cls = C.classes[p.cls];
  const skills = C.skills.filter((s) => !s.class || s.class === p.cls);
  const total = skills.reduce((sum, s) => sum + p.levels[s.id], 0);
  const days = Math.max(1, Math.ceil((serverNow() - p.joined) / 86400));
  const guard = Math.round(p.power);

  const skillRows = skills.map((s) => {
    const level = p.levels[s.id], xp = p.xp[s.id] || 0;
    const floor = C.xp_table[level], ceil = C.xp_table[level + 1];
    const pct = ceil ? (xp - floor) / (ceil - floor) * 100 : 100;
    const gear = [p.equip[`tool_${s.id}`], p.equip[`station_${s.id}`]].filter(Boolean);
    const marks = (cls.fast.includes(s.id) ? `<span title="${cls.name}: ${Math.round((1 - C.class_speed) * 100)}% faster">${cls.icon}</span>` : "")
      + gear.map((id) => `<span title="${esc(`${item(id).name}: ${Math.round(item(id).speed * 100)}% faster`)}">${item(id).icon}</span>`).join("");
    return `<${mine ? `button data-nav="skill:${s.id}"` : "div"} class="sheet-skill">
      <span class="ico">${s.icon}</span>
      <span class="grow"><span class="row1"><b>${s.name}</b><span class="marks">${marks}</span><span class="lv">${level}</span></span>
      <span class="bar xp"><span style="width:${pct}%"></span></span></span>
    </${mine ? "button" : "div"}>`;
  }).join("");

  return `
    <div class="panel sheet-head">
      <div class="big">${cls.icon}</div>
      <div class="grow">
        <h2>${esc(p.name)}</h2>
        <div class="muted">${cls.name} · total level ${total} · ${days === 1 ? "first day" : `${days} days`} in the city</div>
        <div class="small" style="margin-top:6px">${p.doing ? `${skillOf(p.skill).icon} ${esc(p.doing)}` : `<span class="muted">Idle</span>`}${p.garrison ? ` · <span class="tag warn">On guard</span>` : ""}</div>
      </div>
    </div>
    <div class="stats">
      <div class="stat"><div class="k">Health</div><div class="v">${fmt(p.hp)} <small>/ ${p.max_hp}</small></div><div class="bar hp" style="margin-top:6px"><span style="width:${p.hp / p.max_hp * 100}%"></span></div></div>
      <div class="stat"><div class="k">Combat power</div><div class="v">${p.power}</div><div class="note">${guard} in the garrison</div></div>
      ${mine ? `<div class="stat"><div class="k">Prayer points</div><div class="v">${fmt(p.pp)}</div><div class="note">${p.prayers.length ? p.prayers.map((id) => esc(C.prayers.find((x) => x.id === id).name)).join(", ") : "No prayers active"}</div></div>` : ""}
      <div class="stat"><div class="k">Armour</div><div class="v">${p.armour}</div><div class="note">${Math.round(p.reduction * 100)}% less physical</div></div>
      <div class="stat"><div class="k">Ward</div><div class="v">${p.ward}</div><div class="note">${Math.round(p.ward_reduction * 100)}% less magic</div></div>
      <div class="stat"><div class="k">Given to the city</div><div class="v favour">${fmt(p.donated)}</div><div class="note">${fmt(p.favour)} favour to spend</div></div>
      ${mine ? `<div class="stat"><div class="k">Purse</div><div class="v gold">${fmt(p.gold)}</div><div class="note">${p.slots_used} / ${p.slots} bank slots</div></div>` : ""}
    </div>
    <div class="cols">
      <div>
        <div class="panel"><h2>Class</h2>
          <p><b>${cls.icon} ${cls.name}</b></p>
          <p class="small">${esc(cls.bonus)}.</p>
          <p class="small">${esc(cls.masterwork)}.</p>
          <p class="small">${esc(cls.signature)}.</p>
          <p class="small">${esc(cls.combat)}.</p>
        </div>
        ${equipmentPanel(p, mine)}
        ${mine ? lookPanel(p) : ""}
      </div>
      <div class="panel"><h2>Skills</h2><div class="sheet-skills">${skillRows}</div></div>
    </div>`;
}

function lookPanel(p) {
  const look = p.look, wear = (kind) => Object.keys(C.cosmetics).filter((k) => C.cosmetics[k].kind === kind && (C.free_looks.includes(k) || p.owned.includes(k)));
  const swatches = (part) => wear("colour").map((k) => `<button class="swatch ${look[part] === k ? "on" : ""}" style="background:${C.cosmetics[k].value}"
    data-look="${part}" data-value="${k}" title="${esc(C.cosmetics[k].name)}" aria-label="${esc(C.cosmetics[k].name)}"></button>`).join("");
  const emblems = [`<button class="btn sm ${look.emblem ? "" : "gold"}" data-look="emblem" data-value="">None</button>`,
    ...wear("emblem").map((k) => `<button class="btn sm ${look.emblem === k ? "gold" : ""}" data-look="emblem" data-value="${k}" title="${esc(C.cosmetics[k].name)}" aria-label="${esc(C.cosmetics[k].name)}">${glyph(emblemGlyph(k), "#e7e9f0")}</button>`)].join("");
  const home = C.homes.findIndex(([name]) => name === p.shown.home), next = C.homes[home + 1];
  return `<div class="panel"><h2>Banner &amp; title</h2>
    <div class="look-preview">${crest(p.shown, 48)}<span><b>${esc(p.name)}</b>${p.shown.title ? ` <span class="title">${esc(p.shown.title)}</span>` : ""}</span></div>
    <p class="small muted">Field</p><div class="swatches">${swatches("field")}</div>
    <p class="small muted">Trim</p><div class="swatches">${swatches("trim")}</div>
    <p class="small muted">Emblem</p><div class="btns">${emblems}</div>
    <p class="small muted">Title</p><select data-look-title><option value="">None</option>${p.titles.map((t) => `<option ${look.title === t ? "selected" : ""}>${esc(t)}</option>`).join("")}</select>
    <p class="small muted" style="margin-top:12px">Home · ${esc(p.shown.home)}</p>
    ${next ? `<button class="btn sm gold" data-home ${p.gold < next[1] ? "disabled" : ""}>${esc(next[0])} (${COIN} ${fmt(next[1])})</button>` : `<p class="small">As grand as it gets.</p>`}
    <p class="small muted">Dyes, emblems and titles come with the caravan. Titles are also earned: master a skill (50), defend the city, slay a dragon.</p></div>`;
}

// The character, dressed: a compact grid of slots on a warrior's outline, Melvor-style, with
// room for slots the game doesn't have yet. A two-handed weapon fills the off hand too, faded.
// Picking a slot shows what's in it beside the grid.
const DOLL = [
  ["cape", "Cape", "cape"], ["helmet", "Head", "visored-helm"], ["amulet", "Amulet", "gem-pendant"],
  ["weapon", "Main hand", "pointy-sword"], ["body", "Body", "breastplate"], ["shield", "Off hand", "round-shield"],
  ["gloves", "Gloves", "gauntlet"], ["legs", "Legs", "leg-armor"], ["ring", "Ring", "ring"],
  ["trinket", "Trinket", "crystal-ball"], ["boots", "Boots", "leather-boot"], ["food", "Food", "hot-meal"],
];

function dollSlot(p, slot, label, outline, picked) {
  if (slot === "food") return foodSlot(p, picked);
  const known = slot in p.equip, two = slot === "shield" && p.equip.weapon && item(p.equip.weapon).two_handed;
  const id = two ? p.equip.weapon : p.equip[slot];
  const tip = !known ? `${label}: not in the game yet` : id ? `${label}: ${item(id).name}` : `${label}: empty`;
  return `<button class="doll-slot ${known ? "" : "future"} ${id ? "" : "empty"} ${two ? "ghost" : ""} ${picked ? "on" : ""}"
      ${known ? `data-doll="${slot}"` : "disabled"} title="${esc(tip)}">
    ${id ? item(id).icon : glyph(outline, "#98a1b4")}${two ? `<span class="hands">2H</span>` : ""}
    ${slot === "weapon" && id ? `<span class="slot-type">${dmgIcon(C.styles[item(id).style || "sword"].damage)}</span>` : ""}</button>`;
}

function paperDoll(p, mine) {
  const pick = dollPick && slot2(dollPick, p);
  let slot = "";
  if (pick === "food") slot = foodPanel(p);
  else if (pick) {
    const label = DOLL.find(([s]) => s === pick)[1];
    const two = pick === "shield" && p.equip.weapon && item(p.equip.weapon).two_handed;
    const id = two ? p.equip.weapon : p.equip[pick], it = id && item(id);
    slot = `<div class="worn-head">${it ? `<span class="ico">${it.icon}</span><b>${esc(it.name)}</b>` : `<b>${label}</b><span class="muted small">empty</span>`}</div>
      ${it ? gearChips(it, p) : ""}${mine ? swapGrid(p, pick, two) : ""}`;
  }
  return `<div class="doll-wrap">
    <div class="doll-col"><div class="doll"><span class="doll-figure">${glyph("swordman", "#e6e8ee")}</span>
      ${DOLL.map(([s, name, outline]) => dollSlot(p, s, name, outline, s === pick)).join("")}</div>${combatStats(p)}</div>
    <div class="doll-side"><div class="doll-slot-info">${slot}</div></div>
  </div>`;
}

// Your fighting numbers, always in the same place under the slot details: icons and numbers,
// with what each means on hover.
function combatStats(p) {
  const f = p.fighter, pct = (x) => `${Math.round(x * 100)}%`, dt = C.damage_types[f.damage];
  const cell = (icon, value, tip) => `<span class="gstat" title="${esc(tip)}">${icon}<span>${value}</span></span>`;
  const cells = [
    cell(glyph("biceps", "#e06a6a"), p.power, "Power: from your level and gear"),
    cell(glyph("checked-shield", "#d4dae2"), p.armour, `Armour: ${pct(p.reduction)} less damage from blows`),
    cell(glyph("magic-shield", "#a77be8"), p.ward, `Ward: ${pct(p.ward_reduction)} less damage from magic`),
    cell(glyph(dt.glyph, dt.tint), f.max_hit, `Max hit (${dt.name.toLowerCase()})`),
    cell(glyph("striking-diamonds", "#f0d060"), pct(f.crit), "Crit chance"),
    cell(glyph("stopwatch", "#9fb3c8"), `${f.interval}s`, `A swing every ${f.interval}s`),
    cell(glyph("archery-target", "#e0a050"), fmt(f.accuracy), "Accuracy"),
    cell(glyph("dodging", "#8fd0e0"), fmt(f.evasion), "Evasion"),
    cell(glyph("shield-reflect", "#e0b04a"), pct(f.block), "Block chance (with a shield)"),
  ];
  return `<div class="combat-stats stat-grid">${cells.join("")}</div>`;
}

// What else in the bank fits the picked slot, best first: click one to put it on. For weapons the
// corner shows the damage type, so you can pick one for what you're about to fight.
function swapGrid(p, slot, two) {
  const fits = Object.keys(p.bank).filter((id) => item(id).slot === slot)
    .sort((a, b) => (item(b).tier ?? 0) - (item(a).tier ?? 0) || (item(b).power ?? 0) - (item(a).power ?? 0));
  const tiles = fits.map((id) => {
    const it = item(id), [skill, level] = it.req || [];
    const why = two ? `Your ${item(p.equip.weapon).name.toLowerCase()} takes both hands`
      : skill && p.levels[skill] < level ? `Needs ${skillOf(skill).name.toLowerCase()} ${level}` : "";
    const corner = it.style ? dmgIcon(C.styles[it.style].damage) : "";
    const tip = [it.name, gearStats(it), it.style ? (it.two_handed ? "two-handed" : "one-handed") : "", why].filter(Boolean).join(" · ");
    return `<button class="doll-slot swap" data-equip="${id}" ${why ? "disabled" : ""} title="${esc(tip)}">${it.icon}
      ${corner ? `<span class="swap-type">${corner}</span>` : ""}${it.two_handed ? `<span class="hands">2H</span>` : ""}${p.bank[id] > 1 ? `<span class="swap-qty">${p.bank[id]}</span>` : ""}</button>`;
  });
  const off = p.equip[slot] && !two ? `<button class="doll-slot swap off" data-unequip="${slot}" title="Take it off, back to the bank">${glyph("cancel", "#98a1b4")}</button>` : "";
  if (!tiles.length && !off) return `<div class="muted small">Nothing else in your bank fits here.</div>`;
  return `<div class="swap-head muted small">Swap for</div><div class="swap-grid">${tiles.join("")}${off}</div>`;
}

// A picked slot only counts if it's one this character has.
function slot2(slot, p) {
  return slot in p.equip || (slot === "food" && "food" in p) ? slot : null;
}

// Food for resting between fights: one you picked to eat first, or the cheapest first. Only your own sheet shows it.
function foodSlot(p, picked) {
  if (!("food" in p)) return `<span class="doll-slot future" title="Food"></span>`;
  const id = p.food && p.bank[p.food] ? p.food : null;
  const none = !p.edible.length;
  const tip = none ? "No food in your bank" : id ? `Food: ${item(id).name}, heals ${item(id).heal}` : "Food: cheapest first";
  return `<button class="doll-slot ${picked ? "on" : ""} ${none ? "starving" : ""}" data-doll="food" title="${esc(tip)}">
    ${none ? glyph("hot-meal", "#e2645c") : id ? item(id).icon : ANY_FOOD}${id ? `<span class="swap-qty">${fmt(p.bank[id])}</span>` : ""}</button>`;
}

function foodPanel(p) {
  const id = p.food && p.bank[p.food] ? p.food : null;
  const head = id ? `<div class="worn-head"><span class="ico">${item(id).icon}</span><b>${esc(item(id).name)}</b>
      <span class="muted small">${HEART} ${item(id).heal} · ${fmt(p.bank[id])} left</span></div>`
    : `<div class="worn-head"><span class="ico">${ANY_FOOD}</span><b>Cheapest first</b></div>`;
  const tiles = [...p.edible].sort((a, b) => item(a).heal - item(b).heal).map((f) => `<button class="doll-slot swap ${f === id ? "on" : ""}" data-food="${f}"
      title="${esc(`${item(f).name}: heals ${item(f).heal}`)}">${item(f).icon}<span class="swap-qty">${fmt(p.bank[f])}</span></button>`);
  const cheap = `<button class="doll-slot swap ${id ? "" : "on"}" data-food="cheapest" title="Cheapest first">${ANY_FOOD}</button>`;
  const below = p.eat_below ?? C.eat_below;
  const label = (x) => x === 0 ? "Never" : x === 1 ? "Always" : `${Math.round(x * 100)}%`;
  const when = `<div class="swap-head muted small" title="Between fights you eat while under this much of your HP, then rest the rest of the way">Eat below</div>
    <div class="eat-below">${C.eat_choices.map((x) => `<button class="btn sm ${x === below ? "on" : ""}" data-eat="${x}">${label(x)}</button>`).join("")}</div>`;
  return head + (p.edible.length ? `<div class="swap-head muted small">Eat first</div><div class="swap-grid">${cheap}${tiles.join("")}</div>`
    : `<div class="small warn">No food in your bank.</div>`) + when;
}

// The equipment panel, the same on the character sheet and the combat page (which leaves out tools).
function equipmentPanel(p, mine, tools = true) {
  return `<div class="panel"><h2>Equipment</h2>${paperDoll(p, mine)}
    ${tools ? `<h2 style="margin-top:16px">Tools</h2>${toolSlots(p)}` : ""}</div>`;
}

// Tools: one small slot per gathering skill.
// Gathering tools in a row; under them each crafting skill's tool, with its station below it.
function toolSlots(p) {
  const slot = (kind, s) => {
    const id = p.equip[`${kind}_${s.id}`], it = id && item(id);
    return `<span class="doll-slot small ${id ? "" : "empty"}" title="${esc(it ? `${it.name}: ${Math.round(it.speed * 100)}% faster ${s.name.toLowerCase()}` : `${s.name}: no ${kind}`)}">
      ${it ? it.icon : s.icon}</span>`;
  };
  const gathering = C.skills.filter((s) => `tool_${s.id}` in p.equip && !(`station_${s.id}` in p.equip));
  const crafting = C.skills.filter((s) => `station_${s.id}` in p.equip);
  return `<div class="tool-slots">${gathering.map((s) => slot("tool", s)).join("")}</div>
    <div class="tool-grid">${crafting.map((s) => slot("tool", s) + slot("station", s)).join("")}</div>`;
}

// --- registration ---------------------------------------------------------

function classCards() {
  return Object.entries(C.classes).map(([id, c]) => `
    <button class="class-card ${pickedClass === id ? "on" : ""}" data-class="${id}">
      <span class="ico">${c.icon}</span><span><b>${c.name}</b><p>${esc(c.bonus)}.</p><p>${esc(c.masterwork)}.</p><p>${esc(c.signature)}.</p><p>${esc(c.combat)}.</p></span>
    </button>`).join("");
}

// After the classes became trades, everyone picks once more. Nothing is lost.
function repickPage() {
  return `<div class="welcome">
    <h2>Pick your trade</h2>
    <p class="muted">Classes are now trades, gathering through crafting. You keep every level and item. Free, once.</p>
    <div class="classes">${classCards()}</div>
    <div class="btns"><button class="btn primary" data-repick ${pickedClass ? "" : "disabled"}>Take up this trade</button></div>
    <p class="small muted">Any class can train any skill.</p>
  </div>`;
}

function register() {
  const cards = classCards();
  return `<div class="welcome">
    <h2>A new city on the frontier</h2>
    <p class="muted">Settle a frontier city together. Train, build, and hold off the bandits.
      You keep working while away, for up to a day.</p>
    <div class="classes">${cards}</div>
    <form data-form="register" class="btns">
      <input type="text" data-keep="name" maxlength="20" placeholder="Your adventurer's name" style="flex:1;min-width:200px">
      <button class="btn primary" ${pickedClass ? "" : "disabled"}>Enter the city</button>
    </form>
    <p class="small muted">Any class can train any skill.</p>
  </div>`;
}

// --- animation ------------------------------------------------------------

function animate() {
  const now = serverNow();
  const a = S?.me?.action;
  animateFight(now);
  if (a && !a.waiting) {
    const pct = Math.min(1, (now - a.start) / a.duration);
    // In a fight the bar is the enemy's health (set by animateFight), not a timer.
    if (!a.fight) for (const el of document.querySelectorAll("[data-progress]")) el.style.width = (pct * 100) + "%";
    const key = `${a.start}:${a.duration}`;
    if (pct >= 1 && refreshedFor !== key) {
      refreshedFor = key;
      setTimeout(refresh, 150);
    } else if (a.fight && now - a.start > a.duration + 1 && now - retriedAt > 2) {
      retriedAt = now;  // the next enemy hasn't turned up yet: ask again
      refresh();
    }
  }
  for (const el of document.querySelectorAll("[data-span]")) {
    const [start, end] = el.dataset.span.split(",").map(Number);
    el.style.width = Math.min(100, (now - start) / (end - start) * 100) + "%";
  }
  for (const el of document.querySelectorAll("[data-countdown]")) el.textContent = dur(Number(el.dataset.countdown) - now);
  animateFires();
}

function loop() {
  if (S) animate();
  requestAnimationFrame(loop);
}

// --- events ---------------------------------------------------------------

document.addEventListener("click", (e) => {
  const t = e.target.closest("button, [data-menu], [data-close], [data-aim]");
  if (!t) return;
  const d = t.dataset;
  if (t.matches("[data-battle-skip]")) return playBattle.finish?.();
  if (d.raidSeen) {
    $("#modal").hidden = true;
    return act("/api/seen", { id: Number(d.raidSeen) });
  }
  if (!$("#modal").hidden && $(".battle")) return;  // the raid report closes with its own button, once watched
  if (t.matches("[data-close]") || e.target === $("#modal")) { $("#modal").hidden = true; showThreat(); return; }
  if ("menu" in d) { setMenu(!$("#app").classList.contains("open")); return; }
  if (d.nav) {
    if (d.navGroup) { tabs[d.nav.slice(6)] = d.navGroup; remember(`tab.${d.nav.slice(6)}`, d.navGroup); }
    page = d.nav; remember("page", page); selected = null;
    history.replaceState(null, "", "#" + page);
    setMenu(false);
    render(); window.scrollTo(0, 0); return;
  }
  if (d.firewood) { firewood = Number(d.firewood); remember("firewood", d.firewood); return render(); }
  if (d.press) {
    if (!S.me.manual.includes(d.press)) return toast("On auto: tap AUTO to take it yourself");
    t.closest(".ab")?.classList.add("queued");
    const kind = C.abilities[d.press].target, mine = aim.fight === S.me.action?.start;
    const target = !mine ? null : kind === "enemy" ? aim.foe : kind === "ally" ? aim.ally : null;
    return act("/api/press", { id: d.press, ...(target ? { target } : {}) });
  }
  if (d.mode) return act("/api/manual", { id: d.mode, on: !S.me.manual.includes(d.mode) });
  if ("pull" in d) return act("/api/pull", {});
  if ("startRun" in d) return act("/api/run", {});
  if (d.learn) return act("/api/learn", { item: d.learn });
  if (d.eat !== undefined) return act("/api/eat", { below: Number(d.eat) });
  if (d.aim) {
    const fight = S.me.action?.start;
    if (aim.fight !== fight) aim = { fight, foe: null, ally: null };
    if (d.aim[0] === "e") aim.foe = d.aim;
    else aim.ally = d.aim;
    animateFight(serverNow());   // the outline moves now; the server hears about it in the background
    return d.aim === S.uid ? undefined : act("/api/target", { id: d.aim });
  }
  if (d.start) return act("/api/action", { id: d.start });
  if (d.once) return act("/api/action", { id: d.once, once: true });
  if ("stop" in d) return act("/api/stop", {});
  if (d.join) { tagging = true; return act("/api/join", { id: d.join }); }
  if ("orderNew" in d) {
    draft = draft ? null : { kind: "craft", item: "", qty: 1, provide: [], reward: 0 };
    return render();
  }
  if (d.draftKind) { draft = { kind: d.draftKind, item: "", qty: 1, provide: [], reward: 0 }; clearSearch(); return render(); }
  if (d.draftSkill) { draft.skill = d.draftSkill; draft.search = ""; clearSearch(); return render(); }
  if (d.draftGroup) { draft.group = d.draftGroup; return render(); }
  if (d.draftItem) {
    pickOrderItem(d.draftItem);
    render();
    // On a phone the named list is long: bring the amount, price and Post into view.
    if (draft.item && matchMedia("(max-width: 900px)").matches) $(".compose-grid")?.scrollIntoView({ behavior: "smooth", block: "start" });
    return;
  }
  if (d.provide) {
    draft.provide = draft.provide.includes(d.provide) ? draft.provide.filter((x) => x !== d.provide) : [...draft.provide, d.provide];
    return render();
  }
  if ("orderPost" in d) {
    // A fire lit since picking may now pay a reagent that was ticked.
    const a = draft.kind === "craft" && C.actions.find((x) => x.id === C.order_recipes[draft.item]);
    const provide = a ? draft.provide.filter((id) => runInputs(a)[id]) : draft.provide;
    const body = { kind: draft.kind, item: draft.item, qty: draft.qty, provide, reward: draft.reward };
    return api("/api/order", body).then((state) => { draft = null; orderTab = "yours"; accept(state); }).catch((err) => toast(err.message, "bad"));
  }
  if (d.otab) { orderTab = d.otab; return render(); }
  if (d.orderWork) return act("/api/order/work", { id: Number(d.orderWork) });
  if (d.orderDrop) return act("/api/order/drop", { id: Number(d.orderDrop) });
  if (d.orderDeliver) return act("/api/order/deliver", { id: Number(d.orderDeliver) });
  if (d.orderCancel) return act("/api/order/cancel", { id: Number(d.orderCancel) });
  if (d.orderRemove) return act("/api/order/remove", { id: Number(d.orderRemove) });
  if ("orderClear" in d) return act("/api/order/remove", {});
  if (d.orderFill) return act("/api/order/provide", { id: Number(d.orderFill), item: d.item });
  if (d.doll) {
    dollPick = dollPick === d.doll ? null : d.doll;
    return render();
  }
  if ("select" in d) {
    selected = d.select || null;
    render();
    // On a phone the item panel sits under the bank grid: bring it into view.
    if (selected && matchMedia("(max-width: 900px)").matches) $(".item-panel")?.scrollIntoView({ behavior: "smooth", block: "start" });
    return;
  }
  const qty = d.qty === "all" ? "all" : Number(d.qty);
  if (d.donate) return act("/api/donate", { item: d.donate, qty });
  if (d.sell) return act("/api/sell", { item: d.sell, qty });
  if (d.give) return act("/api/give", { item: d.give, qty, to: $("[data-keep=give-to]").value });
  if (d.equip) return act("/api/equip", { item: d.equip });
  if (d.unequip) return act("/api/equip", { slot: d.unequip });
  if (d.fund) return act("/api/fund", { building: d.fund, item: d.item, source: d.source, qty: "all" });
  if (d.install) return act("/api/install", { fitting: d.install, source: d.source });
  if ("plot" in d) return act("/api/plot", { id: d.plot || null });
  if (d.garrison) return act("/api/garrison", { join: d.garrison === "1" });
  if (d.perk) return act("/api/perk", { perk: d.perk });
  if (d.pin) return act("/api/pin", { skill: d.pin });
  if (d.track) return act("/api/track", { id: d.track });
  if (d.favour) return act("/api/favour", { kind: d.favour });
  if (d.food) return act("/api/food", { item: d.food === "cheapest" ? null : d.food });
  if (d.potion) return act("/api/potion", { item: d.potion });
  if (d.unpost) {
    if (!confirm("Delete this message?")) return;
    return act("/api/board/delete", { id: Number(d.unpost) });
  }
  if (d.aid) return act("/api/aid", { kind: d.aid, item: d.item, source: d.source });
  if ("hire" in d) return act("/api/hire", {});
  if (d.wages) return act("/api/wages", { source: d.wages, qty: "all" });
  if ("rent" in d) return act("/api/rent", {});
  if (d.buy) return act("/api/buy", { ware: d.buy, skill: $("[data-keep=tutor-skill]")?.value });
  if ("statue" in d) return act("/api/statue", { of: $("[data-keep=statue-of]").value });
  if ("home" in d) return act("/api/home", {});
  if (d.look) return act("/api/look", { look: { ...S.me.look, [d.look]: d.value || null } });
  if (d.devHappen) return act("/api/dev/happen", { track: d.devHappen });
  if (d.pray) {
    const on = S.me.prayers.includes(d.pray);
    if (!on && S.me.prayers.length >= C.max_prayers) return toast(`Max ${C.max_prayers} prayers active`, "bad");
    return act("/api/prayers", { ids: on ? S.me.prayers.filter((x) => x !== d.pray) : [...S.me.prayers, d.pray] });
  }
  if (d.overflow) return act("/api/settings", { overflow: d.overflow });
  if (d.class) { pickedClass = d.class; render(); return; }
  if ("repick" in d) return act("/api/class", { cls: pickedClass });
  if (d.tab) { tabs[d.tab] = d.group; remember(`tab.${d.tab}`, d.group); render(); return; }
  if (d.devAdvance) return act("/api/dev/advance", { hours: Number(d.devAdvance) });
  if ("devEvent" in d) return act("/api/dev/event", {});
});

function clearSearch() {
  const field = $("[data-keep=order-search]");
  if (field) field.value = "";
}

function pickOrderItem(id) {
  const list = draft.kind === "craft" ? C.order_recipes : C.order_raw;
  draft.item = list[id] ? id : "";
  draft.provide = [];
  // A starting price: what the item's worth, each.
  draft.reward = draft.item ? item(draft.item).value * (draft.kind === "craft" ? draft.qty : 1) : 0;
}

document.addEventListener("input", (e) => {
  if (e.target.dataset.keep !== "order-search" || !draft) return;
  draft.search = e.target.value;
  render();
});

document.addEventListener("change", (e) => {
  if ("lookTitle" in e.target.dataset) return act("/api/look", { look: { ...S.me.look, title: e.target.value || null } });
  const key = e.target.dataset.draft;
  if (!key || !draft) return;
  if (key === "item") {
    pickOrderItem(e.target.value);
  } else {
    const before = draft.qty;
    draft[key] = Math.max(key === "qty" ? 1 : 0, Math.floor(Number(e.target.value) || 0));
    if (key === "qty") draft.qty = Math.min(draft.qty, C.order_max[draft.kind]);
    // A crafting order's reward is the total: it follows the quantity at the same price each.
    if (key === "qty" && draft.kind === "craft") draft.reward = Math.round(draft.reward / before * draft.qty);
    if (key === "qty" && draft.kind === "craft" && draft.item) {
      // Drop provided reagents the bank can no longer cover at the new quantity.
      const a = C.actions.find((x) => x.id === C.order_recipes[draft.item]), runs = Math.ceil(draft.qty / a.outputs[draft.item]);
      draft.provide = draft.provide.filter((id) => (S.me.bank[id] || 0) >= (runInputs(a)[id] || 0) * runs);
    }
  }
  render();
});

$("#modal").addEventListener("click", (e) => { if (e.target.id === "modal") e.target.hidden = true; });

// Number keys press your abilities, in the bar's order (the ones you know).
document.addEventListener("keydown", (e) => {
  if (e.target.matches("input, textarea, select") || e.ctrlKey || e.metaKey || e.altKey) return;
  const n = Number(e.key);
  if (!n) return;
  const tile = document.querySelectorAll(".ability-bar .ab:not(.locked) [data-press]")[n - 1];
  if (tile) { e.preventDefault(); tile.click(); }
});

document.addEventListener("submit", async (e) => {
  const form = e.target.closest("[data-form]");
  if (!form) return;
  e.preventDefault();
  const field = form.querySelector("[data-keep]");
  const value = field.value.trim();
  if (form.dataset.form === "register") {
    if (!pickedClass) return toast("Pick a class first", "bad");
    return act("/api/register", { name: value, cls: pickedClass });
  }
  if (form.dataset.form === "board") {
    if (!value) return;
    field.value = "";
    return act("/api/board", { text: value });
  }
  if (form.dataset.form === "monument") {
    field.value = "";
    return act("/api/monument", { id: form.dataset.id, qty: Number(value) });
  }
  if (form.dataset.form === "gold") {
    field.value = "";
    return act("/api/donate", { item: "gold", qty: Number(value) });
  }
  if (form.dataset.form === "dev-user" && value) {
    document.cookie = `gh_user=${encodeURIComponent(value)}; path=/; SameSite=Lax`;
    field.value = "";
    return refresh();
  }
});

document.addEventListener("visibilitychange", () => { if (!document.hidden) refresh(); });

// --- swipe the menu open and shut (phones) --------------------------------
// A mostly-sideways swipe drags the drawer with the finger; letting go snaps
// it open or shut by distance or speed. Vertical scrolling is left alone.
// Move and end listeners go on the touched element itself: touch events keep
// going to it even if a re-render detaches it mid-swipe, and then they no
// longer bubble up to the document.

(function swipeMenu() {
  const phone = matchMedia("(max-width: 900px)");
  let drag = null;

  const reset = () => {
    $("#side").style.transform = $("#side").style.transition = "";
    $("#scrim").style.opacity = "";
    $("#app").classList.remove("dragging");
  };

  document.addEventListener("touchstart", (e) => {
    if (drag) release();
    if (!phone.matches || e.touches.length !== 1 || !$("#modal").hidden || e.target.closest("input, textarea, select")) return;
    const t = e.touches[0];
    drag = { x: t.clientX, y: t.clientY, at: e.timeStamp, open: $("#app").classList.contains("open"), axis: null, dx: 0, target: e.target };
    drag.target.addEventListener("touchmove", move, { passive: false });
    drag.target.addEventListener("touchend", finish);
    drag.target.addEventListener("touchcancel", finish);
  }, { passive: true });

  function release() {
    drag.target.removeEventListener("touchmove", move);
    drag.target.removeEventListener("touchend", finish);
    drag.target.removeEventListener("touchcancel", finish);
    if (drag.axis === "x") reset();
    drag = null;
  }

  function move(e) {
    if (!drag) return;
    const t = e.touches[0];
    const dx = t.clientX - drag.x, dy = t.clientY - drag.y;
    if (!drag.axis) {
      if (Math.hypot(dx, dy) < 10) return;
      const sideways = Math.abs(dx) > Math.abs(dy) * 1.3 && (drag.open ? dx < 0 : dx > 0);
      drag.axis = sideways ? "x" : "y";
      if (!sideways) return;
      drag.width = $("#side").offsetWidth;
      $("#side").style.transition = "none";
      $("#app").classList.add("dragging");
    }
    if (drag.axis !== "x") return;
    e.preventDefault();
    drag.dx = dx;
    // 0 is fully open, -width fully shut.
    const offset = Math.max(-drag.width, Math.min(0, drag.open ? dx : dx - drag.width));
    $("#side").style.transform = `translateX(${offset}px)`;
    $("#scrim").style.opacity = String(1 + offset / drag.width);
  }

  function finish(e) {
    if (!drag) return;
    const swiped = drag.axis === "x";
    const speed = drag.dx / Math.max(1, e.timeStamp - drag.at);  // px per ms
    const open = drag.open
      ? !(drag.dx < -drag.width * 0.35 || speed < -0.4)
      : drag.dx > drag.width * 0.35 || speed > 0.4;
    // Hand back to the stylesheet; its transition carries on from here.
    release();
    if (swiped) setMenu(open);
  }
})();

(async function boot() {
  try {
    C = iconise(await api("/api/content"));
    await refresh();
  } catch (err) {
    $("#main").innerHTML = `<p class="loading">Couldn't reach the city: ${esc(err.message)}</p>`;
    return;
  }
  setInterval(() => {
    if (!document.hidden && Date.now() - polledAt >= (S?.me?.action?.fight || S?.me?.action?.run ? FIGHT_POLL_MS : POLL_MS)) refresh();
  }, 500);
  requestAnimationFrame(loop);
})();