/* The settings page. Plain JS, no framework. Everything is readable; with Editing on (the editing
   code + your first name) the same screens grow inputs; changes live in one shared draft on the server
   until Review & Apply. */
(function () {
  "use strict";
  const main = document.getElementById("main");
  const state = { live: null, liveSha: null, schema: null, draft: null, draftStale: false, atemPending: false, editing: null, name: null, saveTimer: null };
  const esc = (s) => String(s == null ? "" : s).replace(/[&<>"']/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" }[c]));
  const ago = (s) => s == null ? "" : s < 90 ? Math.round(s) + " s ago" : s < 5400 ? Math.round(s / 60) + " min ago" : Math.round(s / 3600) + " h ago";
  const when = (t) => t ? new Date(t * 1000).toLocaleString([], { dateStyle: "medium", timeStyle: "short" }) : "";
  const hex = (n) => "#" + (n >>> 0).toString(16).padStart(6, "0").slice(-6);
  const lightDot = (l) => `<i class="light ${esc(l || "unknown")}"></i>`;
  const wordOf = (w) => `<span class="word ${esc((w || "").split(" ")[0])}">${esc(w)}</span>`;
  const deep = (o) => JSON.parse(JSON.stringify(o));
  const canon = (v) => Array.isArray(v) ? "[" + v.map(canon).join(",") + "]" : v && typeof v === "object" ? "{" + Object.keys(v).sort().map((k) => JSON.stringify(k) + ":" + canon(v[k])).join(",") + "}" : JSON.stringify(v);
  const cfg = () => (state.draft ? state.draft.config : state.live);
  const editing = () => !!state.editing;
  const store = { get: (k) => { try { return localStorage.getItem(k); } catch (e) { return null; } }, set: (k, v) => { try { v == null ? localStorage.removeItem(k) : localStorage.setItem(k, v); } catch (e) {} } };
  const closes = (f) => /pkill|taskkill|killall/.test(f.run || "") && !f.restart_ok;

  async function api(path, opts) {
    opts = opts || {};
    const headers = Object.assign({ "Content-Type": "application/json" }, opts.headers || {});
    if (state.editing) { headers["X-Edit-Key"] = state.editing; headers["X-Editor"] = state.name || ""; }
    const r = await fetch(path, Object.assign({}, opts, { headers }));
    let body = null;
    try { body = await r.json(); } catch (e) { body = {}; }
    if (!r.ok) { const err = new Error(body.error || r.statusText); err.status = r.status; err.body = body; throw err; }
    return body;
  }
  const post = (path, body, method) => api(path, { method: method || "POST", body: JSON.stringify(body || {}) });

  // ---- top bar: legend, editing code ----------------------------------------
  document.getElementById("legendbtn").onclick = () => { const l = document.getElementById("legend"); l.hidden = !l.hidden; };
  const editbtn = document.getElementById("editbtn");
  function showEditing() {
    editbtn.textContent = state.editing ? "Editing as " + state.name : "Editing: off";
    editbtn.classList.toggle("on", !!state.editing);
    document.body.classList.toggle("editing", !!state.editing);
  }
  state.editing = store.get("sp-code"); state.name = store.get("sp-name");
  showEditing();
  editbtn.onclick = () => {
    if (state.editing) { state.editing = null; state.name = null; store.set("sp-code", null); store.set("sp-name", null); showEditing(); route(); return; }
    dialog(`<h3>Switch Editing on</h3><p class="help">The editing code is in the campus's settings file in the repo; ask Chris.</p>
      <input id="dcode" placeholder="editing code" autocomplete="off"><input id="dname" placeholder="your first name" autocomplete="off">
      <div class="row"><button class="primary" id="dok">Switch on</button><button id="dcancel">Cancel</button></div><p id="dmsg" class="help"></p>`, (box) => {
      box.querySelector("#dcancel").onclick = closeDialog;
      const go = async () => {
        const code = box.querySelector("#dcode").value, name = box.querySelector("#dname").value.trim();
        const r = await post("/api/editing/check", { code });
        if (r.ok && name) { state.editing = code; state.name = name; store.set("sp-code", code); store.set("sp-name", name); showEditing(); closeDialog(); route(); }
        else box.querySelector("#dmsg").textContent = r.locked_for ? `Locked for ${Math.ceil(r.locked_for / 60)} minutes after too many tries.` : r.no_code ? "No editing code is set in the config yet." : !name ? "Your first name, please." : `Not the code (${r.tries_left} tries left).`;
      };
      box.querySelector("#dok").onclick = go;
      box.querySelector("#dname").onkeydown = (e) => { if (e.key === "Enter") go(); };
      box.querySelector("#dcode").focus();
    });
  };
  function dialog(html, wire) { const d = document.getElementById("dialog"); d.innerHTML = `<div class="box">${html}</div>`; d.hidden = false; wire(d.querySelector(".box")); }
  function closeDialog() { document.getElementById("dialog").hidden = true; }
  function alertBox(msg) { dialog(`<p>${esc(msg)}</p><button id="dok" class="primary">OK</button>`, (b) => { b.querySelector("#dok").onclick = closeDialog; }); }
  function confirmBox(msg, label, onOk, word) {
    dialog(`<p>${esc(msg)}</p>${word ? `<input id="dword" placeholder="type ${esc(word)} to confirm" autocomplete="off">` : ""}<div class="row"><button class="primary" id="dok">${esc(label)}</button><button id="dcancel">Cancel</button></div>`, (b) => {
      b.querySelector("#dcancel").onclick = closeDialog;
      b.querySelector("#dok").onclick = () => { if (word && b.querySelector("#dword").value.trim() !== word) return; closeDialog(); onOk(); };
    });
  }

  // ---- the draft ------------------------------------------------------------
  async function loadAll() {
    const [c, s, d] = await Promise.all([api("/api/config"), api("/api/schema"), api("/api/draft")]);
    state.live = c.config; state.liveSha = c.sha; state.schema = s; state.draft = d.draft; state.draftStale = !!d.stale; state.atemPending = !!d.atem_pending;
    document.getElementById("sitename").textContent = (state.live.site || {}).name || "";
    badge();
  }
  function ensureDraft() {
    if (!editing()) { alertBox("Switch Editing on first (top right)."); return false; }
    if (!state.draft) state.draft = { config: deep(state.live), version: null, by: state.name };
    return true;
  }
  function changed() {
    if (!state.draft) return 0;
    let n = 0;
    const walk = (a, b) => {
      if (Array.isArray(a) && Array.isArray(b)) { if (canon(a) !== canon(b)) n++; return; }
      if (a && b && typeof a === "object" && typeof b === "object" && !Array.isArray(a) && !Array.isArray(b)) { for (const k of new Set([...Object.keys(a), ...Object.keys(b)])) walk(a[k], b[k]); return; }
      if (canon(a) !== canon(b)) n++;
    };
    walk(state.live, state.draft.config);
    return n + (state.atemPending ? 1 : 0);
  }
  function badge() {
    let b = document.getElementById("badge");
    if (!b) { b = document.createElement("a"); b.id = "badge"; b.className = "badge"; b.href = "#review"; document.querySelector(".topright").prepend(b); }
    const n = changed();
    b.hidden = !n && !state.draft;
    b.textContent = n ? `${n} change${n > 1 ? "s" : ""} – Review & Apply` : "Draft – Review";
    b.classList.toggle("warn", !!state.draftStale);
  }
  function saveDraft() {
    badge();
    clearTimeout(state.saveTimer);
    state.saveTimer = setTimeout(async () => {
      try {
        const r = await post("/api/draft", { config: state.draft.config, expect: state.draft.version }, "PUT");
        state.draft.version = r.draft.version; state.draft.by = r.draft.by; state.draft.started = r.draft.started; state.draft.started_by = r.draft.started_by;
      } catch (e) {
        if (e.status === 409) { alertBox(`${e.body.error}: ${(e.body.changed || []).join(", ") || "the draft"}. The page now shows their version.`); state.draft = e.body.draft; route(); }
        else if (e.status === 401 || e.status === 403) { alertBox(e.message); state.editing = null; state.name = null; store.set("sp-code", null); showEditing(); }
        else alertBox("Could not save the draft: " + e.message);
      }
    }, 400);
  }
  // set a value at a dotted path in the draft (creating objects on the way)
  function setPath(path, value) {
    if (!ensureDraft()) return;
    const parts = path.split("."); let o = state.draft.config;
    for (let i = 0; i < parts.length - 1; i++) { if (o[parts[i]] == null || typeof o[parts[i]] !== "object") o[parts[i]] = {}; o = o[parts[i]]; }
    if (value === undefined) delete o[parts[parts.length - 1]]; else o[parts[parts.length - 1]] = value;
    saveDraft();
  }
  const getPath = (path, from) => path.split(".").reduce((o, p) => (o && o[p] !== undefined ? o[p] : undefined), from || cfg());

  // ---- generic inputs from the registry -----------------------------------
  function parse(f, raw) {
    if (f.type === "int") { const n = parseInt(raw, 10); return isNaN(n) ? undefined : n; }
    if (f.type === "float") { const n = parseFloat(raw); return isNaN(n) ? undefined : n; }
    if (f.type === "bool") return !!raw;
    if (f.type === "list") return raw.split(",").map((s) => s.trim()).filter(Boolean);
    if (f.type === "dict") { try { return raw.trim() ? JSON.parse(raw) : undefined; } catch (e) { return undefined; } }
    return raw === "" ? undefined : raw;
  }
  function inputHtml(path, f, value, extra) {
    if (!f) return "";
    const id = "f-" + path.replace(/[^A-Za-z0-9]/g, "-");
    const dis = editing() ? "" : "disabled";
    let html;
    if (f.type === "bool") html = `<input type="checkbox" id="${id}" data-path="${esc(path)}" ${value ? "checked" : ""} ${dis}>`;
    else if (f.type === "enum" && f.options) html = `<select id="${id}" data-path="${esc(path)}" ${dis}><option value="">–</option>${f.options.map((o) => `<option ${value === o ? "selected" : ""}>${esc(o)}</option>`).join("")}</select>`;
    else if (f.type === "dict") html = `<textarea id="${id}" data-path="${esc(path)}" rows="2" ${dis}>${esc(value == null ? "" : JSON.stringify(value))}</textarea>`;
    else if (f.type === "list") html = `<input id="${id}" data-path="${esc(path)}" value="${esc(Array.isArray(value) ? value.join(", ") : value || "")}" ${dis}>`;
    else html = `<input id="${id}" data-path="${esc(path)}" type="${f.type === "int" || f.type === "float" ? "number" : f.secret ? "password" : "text"}" value="${esc(value == null ? "" : value)}" ${f.lo != null ? `min="${f.lo}"` : ""} ${f.hi != null ? `max="${f.hi}"` : ""} ${f.type === "float" ? 'step="any"' : ""} placeholder="${esc(f.default == null || typeof f.default === "object" ? "" : f.default)}" ${dis}>`;
    const dflt = f.default != null && typeof f.default !== "object" && f.default !== "" ? ` <span class="muted">(default ${esc(f.default)})</span>` : "";
    return `<div class="field"><label for="${id}">${esc(path.split(".").pop().replace(/_/g, " "))}${f.required ? " *" : ""}</label>${html}<div class="help">${esc(f.help)}${dflt}${extra || ""}</div></div>`;
  }
  function wireInputs(root) {
    for (const el of root.querySelectorAll("[data-path]")) {
      if (el.onchange) continue;                                  // a screen wired it itself
      el.onchange = () => {
        const path = el.dataset.path, f = fieldFor(path);
        const v = el.type === "checkbox" ? el.checked : el.value;
        setPath(path, f ? parse(f, v) : v);
      };
    }
  }
  function fieldFor(path) {
    const F = state.schema.fields;
    if (F[path]) return F[path];
    const generic = path.replace(/^tiles\.\d+\.checks\.\d+\./, "tiles[].checks[].").replace(/^tiles\.\d+\./, "tiles[].")
      .replace(/^restart_page\.keys\.\d+\./, "restart_page.keys[].").replace(/^fixes\.[^.]+\./, "fixes.*.").replace(/^hosts\.[^.]+\./, "hosts.*.")
      .replace(/^gear\.[^.]+\./, "gear.*.").replace(/^(auto_fix\.windows|site\.live_services|service_windows)\.\d+\./, "$1[].");
    return F[generic] || null;
  }
  const F = (name) => state.schema.fields[name];

  // ---- search ----------------------------------------------------------------
  const search = document.getElementById("search"), results = document.getElementById("searchresults");
  search.oninput = () => {
    const q = search.value.trim().toLowerCase();
    if (!q || !cfg()) { results.hidden = true; return; }
    const c = cfg(), hits = [];
    c.tiles.forEach((t) => { if ((t.label + " " + t.id).toLowerCase().includes(q)) hits.push([`Key ${t.label}`, `#keys/${t.id}`]); });
    for (const k of (c.restart_page || { keys: [] }).keys) if (k.label.toLowerCase().includes(q)) hits.push([`Restart key ${k.label}`, `#keys/restart/${k.id}`]);
    for (const [a, h] of Object.entries(c.hosts || {})) if ((h.name || a).toLowerCase().includes(q) || (h.role || "").toLowerCase().includes(q)) hits.push([`Computer ${h.name || a}`, `#computers/${a}`]);
    for (const [id, f] of Object.entries(c.fixes || {})) if ((id + " " + (f.label || "") + " " + (f.short || "")).toLowerCase().includes(q)) hits.push([`Fix ${f.short || id}: ${f.label || ""}`, `#fixes/${id}`]);
    for (const [path, f] of Object.entries(state.schema.fields)) if (!path.includes("[]") && !path.includes("*") && (path + " " + f.help).toLowerCase().includes(q)) hits.push([`Setting ${path}`, `#site/${f.screen.toLowerCase().replace(/[^a-z]+/g, "-")}`]);
    results.innerHTML = hits.slice(0, 20).map(([t, h]) => `<a href="${h}">${esc(t)}</a>`).join("") || `<a>Nothing called "${esc(q)}"</a>`;
    results.hidden = false;
  };
  search.onblur = () => setTimeout(() => { results.hidden = true; }, 200);

  // ---- routing ---------------------------------------------------------------
  const screens = { overview, keys, computers, logs, history, help, site, fixes, review };
  let timer = null;
  async function route() {
    const [name, ...rest] = (location.hash || "#overview").slice(1).split("/");
    for (const a of document.querySelectorAll(".menu a")) a.classList.toggle("active", a.getAttribute("href") === "#" + name);
    clearInterval(timer); timer = null;
    try {
      if (!state.live) await loadAll();
      const fn = screens[name] || overview;
      await fn(rest);
      wireInputs(main);
      const refresh = name === "overview" || (name === "computers" && !["gear", "setup"].includes(rest[0]));   // never under a typist's hands
      if (refresh) timer = setInterval(() => fn(rest, true).then(() => wireInputs(main)).catch(() => {}), 5000);
    } catch (e) { main.innerHTML = `<p class="notice">Could not load this screen: ${esc(e.message)}</p>`; }
  }
  window.addEventListener("hashchange", route);
  route();

  // ---- Overview --------------------------------------------------------------
  async function overview(_, quiet) {
    if (quiet && document.activeElement && document.activeElement.tagName === "INPUT") return;   // never pull the field out from under a typist
    const o = await api("/api/overview");
    const dot = document.getElementById("hbdot");
    dot.className = "dot " + (o.heartbeat_age != null && o.heartbeat_age < 15 ? "ok" : "bad");
    const isLive = o.live && o.live.live;
    const runnable = (p) => {
      const t = cfg().tiles.find((x) => x.id === p.key); if (!t || !editing() || isLive) return "";
      const fixes = (t.checks || []).map((c, j) => [typeof c.fix === "string" ? c.fix : null, j]).filter(([f]) => f && canRunNow(f));
      return fixes.slice(0, 1).map(([f, j]) => ` <button class="small" data-run="${esc(t.id)}|${esc(f)}|${j}">Run the fix now</button>`).join("");
    };
    const prob = o.problems.length ? o.problems.map((p) => `<li><span class="lvl" style="background:${p.level === "err" ? "var(--problem)" : "var(--warn)"}"></span><b>${esc(p.text)}</b>${p.acked ? ' <span class="muted">(acknowledged)</span>' : ""} <span class="muted">— ${esc(p.action)}</span> <a href="#keys/${esc(p.key)}" class="small">open the key</a>${runnable(p)}</li>`).join("") : `<li class="muted">Everything is fine.</li>`;
    const needs = (o.needs || []).map((n) => `<div class="notice grey">Needs Chris: ${esc(n)}</div>`).join("");
    const failed = o.failed_last ? `<div class="notice grey">The last Apply was put back: ${esc(o.failed_last.why || "")} <a href="#history">History</a></div>` : "";
    const live = isLive ? `<div class="notice">Live now: ${esc(o.live.reason)}. Changes to the panel wait.</div>` : "";
    const comps = o.computers.map((c) => `<tr class="click" onclick="location.hash='#computers/${esc(c.alias)}'"><td>${wordOf(c.word)}</td><td>${esc(c.name)}</td><td class="muted small">${esc(c.reason)}</td></tr>`).join("");
    const w = o.watchdog;
    const dis = editing() ? "" : "disabled title='switch Editing on'";
    main.innerHTML = `
      <h1>${o.problems.length ? o.problems.length + " problem" + (o.problems.length > 1 ? "s" : "") + " in the room" : "Everything is fine"}</h1>
      <p class="what">Is the room OK, and what do I do. Problems mirror the red keys; hold the key, or open it for the details.</p>
      <ul class="problems">${prob}</ul>${needs}${failed}${live}
      <div class="cols">
        <div><h2>Live deck <span class="muted small">${o.deck ? "as the Stream Deck looks now · click a key" : "(Companion is not answering)"}</span></h2>${deckHtml(o.deck, cfg(), "status")}
          <div class="row" style="margin-top:10px"><button disabled title="arrives with step 4">Change the playlist</button><button disabled title="arrives with step 4">Add or remove a HyperDeck</button><button disabled title="arrives with step 4">Add a MIDI link</button></div></div>
        <div><h2>Computers</h2><div class="tablewrap"><table>${comps}</table></div></div>
      </div>
      <div class="card">
        <dl class="kv">
          <dt>Watchdog</dt><dd>${w.running ? "OK, running" : "<b>not running</b>"}${w.since ? " since " + esc(when(w.since)) : ""}${w.version ? ` <span class="pill">code ${esc(w.version)}</span>` : ""}${o.heartbeat_age != null ? ` · heartbeat ${esc(ago(o.heartbeat_age))}` : ""}</dd>
          <dt>Companion</dt><dd>${o.companion_ok ? "OK" : "<b>not answering</b>"}${o.pages && o.pages.status ? (o.pages.status.ok ? ", pages OK" : ", page " + o.pages.status.page + " is called " + esc(o.pages.status.live || "?")) : ""}</dd>
          <dt>Alarms</dt><dd>${o.service_on == null ? "<span class='muted'>not reported yet</span>" : o.service_on ? "ON" : "silenced until midnight"}${o.alarms_override != null ? " (by hand)" : ""} <span class="muted small">· ${esc(o.phrases.alarms)}</span></dd>
          <dt>Auto-fix</dt><dd>${esc(o.auto_fix.phrase)}${o.auto_fix.state && o.auto_fix.state.on ? " · <b>may act now</b>" : ""}${o.auto_fix.state && o.auto_fix.state.paused ? " (waiting out a network blip)" : ""}</dd>
          <dt>Running now</dt><dd>${Object.keys(o.running || {}).length ? Object.values(o.running).map((r) => esc(r.what + " on " + r.key)).join(", ") : "no fix is running"}</dd>
          <dt>Last change</dt><dd>${o.last_change ? esc(o.last_change.when + " · " + o.last_change.note) : "—"} <a href="#history" class="small">History</a></dd>
        </dl>
        <div class="row" style="margin-top:10px">
          <button id="restartwd" ${dis}>${w.running ? "Restart the watchdog" : "Start the watchdog"}</button>
          <button id="alarms" ${dis}>${o.service_on === false ? "Alarms back on" : "Silence alarms until midnight"}</button>
          ${w.running ? `<button id="stopwd" ${dis}>Stop the watchdog</button>` : ""}
        </div>
      </div>`;
    main.querySelector("#restartwd").onclick = () => confirmBox(w.running ? "Restart the watchdog? The deck goes purple for about 5 seconds; a fix that is running finishes first." : "Start the watchdog?", w.running ? "Restart" : "Start", async () => { try { const r = await post(w.running ? "/api/watchdog/restart" : "/api/watchdog/start"); alertBox(r.ok ? "Done: " + r.detail : "Not done: " + r.detail); } catch (e) { alertBox(e.message); } });
    const stop = main.querySelector("#stopwd"); if (stop) stop.onclick = () => confirmBox("Stop the watchdog? The deck goes purple and every alarm is off until it is started again.", "Stop", async () => { try { const r = await post("/api/watchdog/stop", { word: "STOP" }); alertBox(r.ok ? "Stopped." : "Not stopped: " + r.detail); } catch (e) { alertBox(e.message); } }, "STOP");
    main.querySelector("#alarms").onclick = async () => { try { await post("/api/command", { text: o.service_on === false ? "service on" : "service off" }); setTimeout(() => overview(_, true), 1500); } catch (e) { alertBox(e.message); } };
    for (const b of main.querySelectorAll("[data-run]")) b.onclick = () => runNow(...b.dataset.run.split("|"));
    if (!quiet) window.scrollTo(0, 0);
  }
  function canRunNow(fixId) {
    const f = cfg().fixes[fixId]; if (!f) return false;
    if (["reconnect", "hyperdeck", "midi_connect", "spotify"].includes(f.kind)) return true;
    if ((f.kind || "ssh") === "ssh" || f.kind === "local") return !closes(f) && !f.never_auto;
    return false;
  }
  function runNow(key, fixId, which) {
    const f = cfg().fixes[fixId];
    confirmBox(`Run "${f.label || fixId}" now? It runs through the watchdog exactly like a hold on the ${key.toUpperCase()} key.`, "Run it", async () => {
      try { await post("/api/command", { text: `test ${key} ${fixId} ${which}` }); alertBox("Sent. Watch the key, or Logs › Watchdog (TEST)."); } catch (e) { alertBox(e.message); }
    });
  }

  function deckHtml(deck, c, which, selected) {
    const cells = {};
    const rp = c.restart_page;
    if (which === "restart" && rp) { for (const k of rp.keys) cells[k.pos] = { id: k.id, label: k.label }; cells[rp.back_pos] = { nav: "STATUS\nPAGE" }; }
    else { for (const t of c.tiles) if (t.pos) cells[t.pos] = { id: t.id, label: t.label }; if (rp) cells[rp.jump_pos] = { nav: "RESTART\nPAGE" }; }
    const nav = { "0,0": "UP", "1,0": String(which === "restart" && rp ? rp.page : c.page), "2,0": "DOWN" };
    let out = `<div class="deck">`;
    for (let r = 0; r < 4; r++) for (let col = 0; col < 8; col++) {
      const k = `${r},${col}`, cell = cells[k];
      if (nav[k]) out += `<div class="key nav">${esc(nav[k])}</div>`;
      else if (cell && cell.nav) out += `<div class="key nav">${esc(cell.nav)}</div>`;
      else if (cell) {
        const s = deck && deck[cell.id];
        const style = s ? `--b1:${hex(s.b)};--f1:${hex(s.f)};--b2:${hex(s.b2)};--f2:${hex(s.f2)};background:${hex(s.b)};color:${hex(s.f)}` : "background:#444;color:#ddd";
        const blink = s && s.b !== s.b2 ? " blink" : "";
        out += `<div class="key${blink}${selected === cell.id ? " sel" : ""}" style="${style}" onclick="location.hash='#keys/${which === "restart" ? "restart/" : ""}${esc(cell.id)}'">${esc(s ? s.x : cell.label)}</div>`;
      } else out += `<div class="key empty"></div>`;
    }
    return out + `</div>`;
  }

  // ---- Keys ------------------------------------------------------------------
  async function keys(rest) {
    const o = await api("/api/overview").catch(() => ({ deck: null }));
    const c = cfg();
    const restart = rest[0] === "restart";
    const sel = restart ? rest[1] : rest[0];
    const hold = ((c.page_hold_ms || 2000) / 1000) + " s";
    const tabs = `<div class="tabs"><button class="${restart ? "" : "on"}" onclick="location.hash='#keys'">Status page (page ${c.page})</button>${c.restart_page ? `<button class="${restart ? "on" : ""}" onclick="location.hash='#keys/restart'">Restart page (page ${c.restart_page.page})</button>` : ""}</div>`;
    let panel = `<p class="muted">Click a key to see what it watches and what holding it does.${editing() ? " With Editing on you can change it here." : ""}</p>`;
    if (sel && !restart) { const i = c.tiles.findIndex((x) => x.id === sel); if (i >= 0) panel = await keyPanel(i, hold); }
    else if (sel && restart && c.restart_page) { const i = c.restart_page.keys.findIndex((x) => x.id === sel); if (i >= 0) panel = restartKeyPanel(i, hold); }
    const tray = c.tiles.filter((t) => !t.pos && t.kind !== "master").map((t) => `<button class="small" onclick="location.hash='#keys/${esc(t.id)}'">${esc(t.label)}</button>`).join(" ");
    main.innerHTML = `<h1>Keys</h1><p class="what">The deck as people hold it. Click a key; with Editing on, change what it watches and what holding it does (moving keys arrives with step 3).</p>${tabs}
      <div class="cols"><div>${deckHtml(o.deck, c, restart ? "restart" : "status", sel)}${!restart && tray ? `<p class="small muted" style="margin-top:8px">Shown inside their group, no key of their own: ${tray}</p>` : ""}</div><div id="panel">${panel}</div></div>`;
    wireKeyPanel(sel, restart);
  }

  async function keyPanel(i, hold) {
    const c = cfg(), t = c.tiles[i];
    const k = await api("/api/keys");
    const kt = k.tiles.find((x) => x.id === t.id) || { says: [], holding: "", checks: [] };
    const fixOptions = (cur) => `<option value="">none</option><option value="restart-connection" ${cur === "restart-connection" ? "selected" : ""}>reconnect its Companion connection</option><option value="dante-auto" ${cur === "dante-auto" ? "selected" : ""}>Dante auto (PoE port or the Dante module)</option>${Object.entries(c.fixes).map(([id, f]) => `<option value="${esc(id)}" ${cur === id ? "selected" : ""}>${esc(f.short || id)} – ${esc(f.label || "")}</option>`).join("")}`;
    const checks = (t.checks || []).map((chk, j) => {
      const spec = state.schema.checks[chk.type] || { fields: [], question: "" };
      const sentence = (kt.checks[j] || {}).sentence || chk.type;
      if (!editing()) return `<li>${esc(sentence)}<details><summary>Advanced</summary><dl class="kv small">${Object.entries(chk).map(([n, v]) => `<dt>${esc(n)}</dt><dd class="mono">${esc(typeof v === "object" ? JSON.stringify(v) : v)}</dd>`).join("")}</dl></details></li>`;
      const base = `tiles.${i}.checks.${j}.`;
      const fields = (spec.fields || []).filter((f) => f !== "fix" && f !== "type").map((f) => inputHtml(base + f, F("tiles[].checks[]." + f), chk[f])).join("");
      const fixSel = typeof chk.fix === "object" && chk.fix ? `<div class="field"><label>Fix (per sub-check)</label><textarea data-path="${base}fix" rows="2" class="fixtable">${esc(JSON.stringify(chk.fix))}</textarea><div class="help">A table: sub-check → fix, "*" for everything else.</div></div>`
        : `<div class="field"><label>Fix: what holding runs for this check</label><select data-path="${base}fix" class="fixsel">${fixOptions(chk.fix)}</select></div>`;
      const run = typeof chk.fix === "string" && chk.fix && canRunNow(chk.fix) ? `<button class="small" data-run="${esc(t.id)}|${esc(chk.fix)}|${j}">Run this fix now</button>` : "";
      return `<li><b>${esc(spec.question || chk.type)}</b> <span class="muted">${esc(sentence)}</span><div class="checkbox">${fields}${fixSel}
        <details><summary>Advanced</summary>${["tag", "service_only", "debounce_seconds"].filter((f) => !(spec.fields || []).includes(f)).map((f) => inputHtml(base + f, F("tiles[].checks[]." + f), chk[f])).join("")}<p class="mono small">type ${esc(chk.type)}</p></details>
        <div class="row">${run}<button class="small danger" data-removecheck="${j}">Remove this check</button></div></div></li>`;
    }).join("");
    const plain = !t.members && t.kind !== "master";
    const members = t.members ? (editing() ? `<div class="field"><label>Group members</label>${c.tiles.filter((x) => x.id !== t.id && !x.members && x.kind !== "master").map((x) => `<label class="inline"><input type="checkbox" data-member="${esc(x.id)}" ${t.members.includes(x.id) ? "checked" : ""}> ${esc(x.label)}</label>`).join(" ")}</div>` : `<p><b>Sums up:</b> ${t.members.map((m) => `<a href="#keys/${esc(m)}">${esc((c.tiles.find((x) => x.id === m) || {}).label || m)}</a>`).join(", ")}</p>`) : "";
    const addMenu = editing() && plain ? `<div class="field"><label>Add a check</label><select id="addcheck"><option value="">– pick a question –</option>${Object.entries(groupBy(state.schema.checks, (s) => s.question || "Other")).map(([q, types]) => `<optgroup label="${esc(q)}">${types.map((ty) => `<option value="${esc(ty)}">${esc(state.schema.checks[ty].words || ty)}</option>`).join("")}</optgroup>`).join("")}</select></div>` : "";
    const label = editing() ? inputHtml(`tiles.${i}.label`, F("tiles[].label"), t.label) : "";
    const holdAlways = editing() && plain ? `<div class="field"><label>Hold runs even when the key is green</label><select data-path="tiles.${i}.hold_always" class="holdsel"><option value="">no – only what is failing</option>${Object.entries(c.fixes).map(([id, f]) => `<option value="${esc(id)}" ${t.hold_always === id ? "selected" : ""}>${esc(f.short || id)} – ${esc(f.label || "")}</option>`).join("")}</select></div>` : "";
    const pos = `<details><summary>Advanced</summary><dl class="kv"><dt>id</dt><dd class="mono">${esc(t.id)}</dd></dl>${editing() && !t.kind ? `<div class="field"><label>Position (row, column; blank = inside its group only)</label><input id="pos" value="${esc(t.pos ? t.pos.join(", ") : "")}" placeholder="row, column"></div>` : ""}</details>`;
    return `<div class="card"><h2>${esc(t.label)}</h2><p class="muted">${t.pos ? `row ${t.pos[0]}, column ${t.pos[1]}` : "inside its group"}${t.kind ? ` · ${esc({ master: "sums up every key", service: "the ALARMS switch", network: "the network" }[t.kind] || t.kind)}` : ""}</p>
      ${kt.says && kt.says.length ? `<p><b>WHAT THIS KEY WILL SAY:</b> <span class="mono">${esc(kt.says.join(", "))}</span></p>` : ""}
      <p><b>HOLDING ${esc(hold)} WILL:</b> ${esc(kt.holding)}${t.hold_always ? " <span class='pill'>also when green</span>" : ""}</p>
      ${label}${members}${holdAlways}${checks ? `<p><b>Checks:</b></p><ol class="checks">${checks}</ol>` : ""}${addMenu}${pos}</div>`;
  }
  function groupBy(obj, fn) { const out = {}; for (const [k, v] of Object.entries(obj)) (out[fn(v)] = out[fn(v)] || []).push(k); return out; }
  function wireKeyPanel(sel, restart) {
    const c = cfg();
    const i = restart ? -1 : c.tiles.findIndex((x) => x.id === sel);
    for (const b of main.querySelectorAll("[data-run]")) b.onclick = () => runNow(...b.dataset.run.split("|"));
    for (const b of main.querySelectorAll("[data-removecheck]")) b.onclick = () => confirmBox("Remove this check from the key?", "Remove", () => { if (!ensureDraft()) return; state.draft.config.tiles[i].checks.splice(+b.dataset.removecheck, 1); saveDraft(); route(); });
    for (const cb of main.querySelectorAll("[data-member]")) cb.onchange = () => { if (!ensureDraft()) return; const t = state.draft.config.tiles[i]; const set = new Set(t.members); cb.checked ? set.add(cb.dataset.member) : set.delete(cb.dataset.member); t.members = [...set]; saveDraft(); };
    const add = main.querySelector("#addcheck"); if (add) add.onchange = () => { if (!add.value || !ensureDraft()) return; const t = state.draft.config.tiles[i]; t.checks = t.checks || []; t.checks.push({ type: add.value }); saveDraft(); route(); };
    const pos = main.querySelector("#pos"); if (pos) pos.onchange = () => { if (!ensureDraft()) return; const t = state.draft.config.tiles[i]; const m = pos.value.match(/^\s*(\d+)\s*,\s*(\d+)\s*$/); if (m) t.pos = [+m[1], +m[2]]; else if (!pos.value.trim()) delete t.pos; else return alertBox("Row, column: two numbers, like 2, 5."); saveDraft(); route(); };
    for (const s of main.querySelectorAll("select.fixsel")) s.onchange = () => { setPath(s.dataset.path, s.value || undefined); route(); };
    for (const ta of main.querySelectorAll("textarea.fixtable")) ta.onchange = () => { try { setPath(ta.dataset.path, JSON.parse(ta.value)); } catch (e) { alertBox("Not a valid table."); } };
    for (const s of main.querySelectorAll("select.holdsel")) s.onchange = () => { setPath(s.dataset.path, s.value || undefined); route(); };
    for (const s of main.querySelectorAll("select.watchsel")) s.onchange = () => setPath(s.dataset.path, [...s.selectedOptions].map((o) => o.value));
  }
  function restartKeyPanel(i, hold) {
    const c = cfg(), r = c.restart_page.keys[i];
    const f = c.fixes[r.fix] || {};
    const conns = new Set(); for (const t of c.tiles) for (const ch of t.checks || []) if (ch.conn) conns.add(ch.conn);
    const edit = editing() ? `${inputHtml(`restart_page.keys.${i}.label`, F("restart_page.keys[].label"), r.label)}
      <div class="field"><label>What holding runs</label><select data-path="restart_page.keys.${i}.fix">${Object.entries(c.fixes).map(([id, fx]) => `<option value="${esc(id)}" ${r.fix === id ? "selected" : ""}>${esc(fx.short || id)} – ${esc(fx.label || "")}</option>`).join("")}</select></div>
      <div class="field"><label>Keep flashing HOLD TO FIX while these are down (hold cmd/ctrl for several)</label><select multiple size="5" class="watchsel" data-path="restart_page.keys.${i}.watch">${Object.keys(c.fixes).map((id) => `<option value="${esc(id)}" ${(r.watch || []).includes(id) ? "selected" : ""}>fix ${esc(id)}</option>`).join("")}${[...conns].sort().map((cn) => `<option value="conn:${esc(cn)}" ${(r.watch || []).includes("conn:" + cn) ? "selected" : ""}>connection ${esc(cn)}</option>`).join("")}</select></div>` : "";
    return `<div class="card"><h2>${esc(r.label)}</h2><p class="muted">row ${r.pos[0]}, column ${r.pos[1]}</p><p><b>HOLDING ${esc(hold)} WILL:</b> ${esc(f.label || r.fix)}, even when the Status page says it is fine.</p>${r.watch && r.watch.length ? `<p class="small muted">Keeps flashing HOLD TO FIX while down: ${esc(r.watch.join(", "))}</p>` : ""}${edit}
      ${canRunNow(r.fix) && editing() ? `<button class="small" data-run="${esc(r.id)}|${esc(r.fix)}|0">Run this fix now</button>` : ""}<details><summary>Advanced</summary><dl class="kv"><dt>id</dt><dd class="mono">${esc(r.id)}</dd></dl></details></div>`;
  }

  // ---- Computers ---------------------------------------------------------------
  let compTab = "map";
  async function computers(rest, quiet) {
    if (quiet && document.activeElement && ["INPUT", "TEXTAREA", "SELECT"].includes(document.activeElement.tagName)) return;
    const m = await api("/api/machines");
    const selected = rest[0] && rest[0] !== "gear" && rest[0] !== "setup" ? rest[0] : null;
    compTab = rest[0] === "gear" || rest[0] === "setup" ? rest[0] : "map";
    const tabs = `<div class="tabs"><button class="${compTab === "map" ? "on" : ""}" onclick="location.hash='#computers'">Map</button><button class="${compTab === "gear" ? "on" : ""}" onclick="location.hash='#computers/gear'">Gear</button><button class="${compTab === "setup" ? "on" : ""}" onclick="location.hash='#computers/setup'">Setup</button>
      <button id="probe" ${m.probing ? "disabled" : ""}>${m.probing ? "Looking…" : "Check computers now"}</button></div>`;
    let body = "";
    if (compTab === "gear") body = await gearHtml();
    else if (compTab === "setup") body = setupHtml(m);
    else {
      const rows = m.computers.slice().sort((a, b) => (a.word === "Problem" ? 0 : 1) - (b.word === "Problem" ? 0 : 1)).map((c) => `<tr class="click${selected === c.alias ? " sel" : ""}" onclick="location.hash='#computers/${esc(c.alias)}'"><td>${wordOf(c.word)}</td><td>${esc(c.name)}${c.self ? ' <span class="muted small">(this Mac)</span>' : ""}</td><td class="small">${esc(c.role)}</td><td class="small">${(c.keys || []).map((k) => `<span class="pill">${esc((cfg().tiles.find((t) => t.id === k) || { label: k }).label)}</span>`).join(" ")}</td><td class="muted small">${esc(c.reason)}${c.looked ? `<br>looked ${esc(ago(Date.now() / 1000 - c.looked))}` : ""}</td></tr>`).join("");
      body = `<div class="tablewrap"><table><tr><th>status</th><th>computer</th><th>what it does for the panel</th><th>keys that turn red if it dies</th><th></th></tr>${rows}</table></div>`;
      const c = m.computers.find((x) => x.alias === selected);
      if (c) body += computerCard(c);
    }
    main.innerHTML = `<h1>Computers</h1><p class="what">What runs where. One row per computer; click it for everything that runs there, with a light each.</p>${tabs}${body}`;
    const pb = document.getElementById("probe");
    if (pb) pb.onclick = async () => { pb.disabled = true; pb.textContent = "Looking…"; try { await post("/api/machines/probe"); } catch (e) { alertBox(e.message); } setTimeout(() => computers(rest, true).then(() => wireInputs(main)), 4000); };
    for (const b of main.querySelectorAll("[data-gear]")) b.onclick = async () => { const row = b.closest("tr"); try { await post("/api/gear", { name: b.dataset.gear, location: row.querySelector("[data-loc]").value, notes: row.querySelector("[data-notes]").value }); const d = await api("/api/draft"); state.draft = d.draft; badge(); b.textContent = "Saved"; } catch (e) { alertBox(e.message); } };
    const runs = main.querySelector("#runs"); if (runs) runs.onchange = () => { if (!ensureDraft()) return; try { state.draft.config.hosts[selected].runs = runs.value.split("\n").map((l) => l.trim()).filter(Boolean).map((l) => JSON.parse(l)); saveDraft(); } catch (err) { alertBox("Each line must be a valid {...} entry."); } };
  }
  function computerCard(c) {
    const items = (c.items || []).map((i) => `<tr><td>${lightDot(i.light)}${esc(i.light === "ok" ? "OK" : i.light === "problem" ? "Problem" : i.light === "not_needed" ? "Not needed" : "Can't see from here")}</td><td>${esc(i.name)}${i.watched === false ? ' <span class="muted small">(not watched)</span>' : ""}</td><td class="muted small">${esc(i.reason || (typeof i.detail === "object" && i.detail ? Object.entries(i.detail).map(([k, v]) => k + " " + (v === true ? "yes" : v === false ? "no" : k === "age" ? ago(v) : v)).join(", ") : i.detail || ""))}</td></tr>`).join("");
    const found = c.found || {};
    const foundHtml = Object.entries(found).filter(([, v]) => Array.isArray(v) && v.length).map(([k, v]) => `<p class="small"><b>${esc(k)}:</b> <span class="mono">${esc(typeof v[0] === "object" ? v.map((x) => x.iface + " " + x.ip + (x.active ? "" : " (down)")).join(", ") : v.join(", "))}</span></p>`).join("") || `<p class="muted small">Press "Check computers now" to look.</p>`;
    const done = Object.entries(c.manual_done || {}).map(([k, v]) => `<li>${lightDot("hand")}${esc(k.replace(/_/g, " "))}: done by hand (${esc(v.by)}, ${esc(v.on)})</li>`).join("");
    const base = `hosts.${c.alias}.`;
    const edit = editing() ? `<details open><summary>Change this computer</summary>${["name", "role", "notes", "os"].concat(c.self ? [] : ["ssh", "mac", "wake_broadcast", "pingable"]).map((f) => inputHtml(base + f, F("hosts.*." + f), getPath(base + f))).join("")}
      <div class="field"><label>What runs here (one per line, as {"kind": ..., "name": ...})</label><textarea id="runs" rows="${Math.max(4, (getPath(base + "runs") || []).length + 1)}" class="mono">${esc((getPath(base + "runs") || []).map((r) => JSON.stringify(r)).join("\n"))}</textarea><div class="help">Kinds: sshd, app (process), launchagent (label), daemon (process), task (name, exe), service (name), web (url), helper_dvs, helper_solo (label), midi_session (name, peer_of), artnet (source), folder (path), disabled (label). "watched": false for things the panel only lists.</div></div></details>` : "";
    return `<div class="card" id="card"><h2>${esc(c.name)} ${wordOf(c.word)}</h2><p class="muted">${esc(c.role)}${c.ssh ? ` · logs in as <span class="mono">${esc(c.ssh)}</span>` : ""}${c.mac ? ` · wake-on-LAN ${esc(c.mac)}` : ""}${c.pingable === false ? " · does not answer pings" : c.ping != null ? ` · ping ${c.ping ? "OK" : "<b>no answer</b>"}` : ""}${c.error ? ` · <b>${esc(c.error)}</b>` : ""}</p>
      ${c.notes ? `<p class="notice grey">${esc(c.notes)}</p>` : ""}
      <h3>What runs here</h3><div class="tablewrap"><table>${items}</table></div>
      ${done ? `<ul class="small" style="list-style:none;padding:0">${done}</ul>` : ""}
      <details><summary>Everything found on this computer</summary>${foundHtml}</details>
      ${c.self ? `<details><summary>This Mac's set-up lights</summary><dl class="kv small">${Object.entries(c.setup || {}).map(([k, v]) => `<dt>${esc(k.replace(/_/g, " "))}</dt><dd>${typeof v === "boolean" ? lightDot(v ? "ok" : "problem") + (v ? "OK" : "Problem") : esc(JSON.stringify(v))}</dd>`).join("")}</dl></details>` : ""}
      ${edit}</div>`;
  }
  async function gearHtml() {
    const g = await api("/api/gear");
    return `<p class="small muted">Devices that are not computers, from the keys that watch them.${editing() ? " Type where each one lives and press Save." : ""}</p><div class="tablewrap"><table><tr><th>light</th><th>device</th><th>kind</th><th>address</th><th>where / notes</th><th>watched by</th></tr>
      ${g.map((r) => `<tr><td>${lightDot(r.light)}${esc(r.light === "ok" ? "OK" : r.light === "problem" ? "Problem" : "–")}</td><td>${esc(r.name)}</td><td>${esc(r.kind)}</td><td class="mono small">${esc(r.address || "")}${r.detail ? `<br><span class="muted">${esc(r.detail)}</span>` : ""}</td><td class="small">${editing() ? `<input data-loc value="${esc(r.location || "")}" placeholder="where it is"> <input data-notes value="${esc(r.notes || "")}" placeholder="notes"> <button class="small" data-gear="${esc(r.name)}">Save</button>` : `${esc(r.location || "")} ${esc(r.notes || "")}`} <span class="muted">${esc(r.reason || "")}</span></td><td class="small">${(r.watched_by || []).map((k) => `<a href="#keys/${esc(k)}">${esc((cfg().tiles.find((t) => t.id === k) || { label: k }).label)}</a>`).join(", ")}</td></tr>`).join("")}</table></div>`;
  }
  function setupHtml(m) {
    return m.computers.map((c) => {
      const kind = c.self ? "self" : c.os === "windows" ? "windows" : "mac";
      const steps = (m.setup_steps || {})[kind] || [];
      const lightFor = (step) => {
        const s = c.setup || {};
        const item = (k) => (c.items || []).find((i) => i.kind === k);
        if (/login key/.test(step)) return s.key_ok === true || s.login_key === true ? "ok" : s.key_ok === false || s.login_key === false ? "problem" : "unknown";
        if (/python/.test(step)) return s.python_ok === true ? "ok" : s.python_ok === false ? "problem" : "unknown";
        if (/SSH service/.test(step)) return c.reachable ? "ok" : "problem";
        if (/firewall/.test(step)) return s.firewall_allow ? "ok" : "unknown";
        if (/wake-on-LAN/.test(step)) return s.wake_on_lan === "Enabled" ? "ok" : s.wake_on_lan ? "problem" : "unknown";
        if (/Public/.test(step)) return s.profile === "Public" ? "ok" : s.profile ? "problem" : "unknown";
        if (/DVS helper/.test(step)) { const it = item("helper_dvs"); return it ? it.light : "not_needed"; }
        if (/Pro Tools helper/.test(step)) { const it = item("helper_solo"); return it ? it.light : "not_needed"; }
        if (/StatusPanel/.test(step)) { const ts = (c.items || []).filter((i) => i.kind === "task"); return ts.length ? (ts.every((i) => i.light === "ok") ? "ok" : "problem") : "unknown"; }
        if (/rtpMIDI/.test(step)) { const it = item("service"); return it ? it.light : "not_needed"; }
        if (/Netgear/.test(step)) return s.netgear_keychain === true ? "ok" : s.netgear_keychain === false ? "problem" : "not_needed";
        if (/Google Drive/.test(step)) { const it = item("folder"); return it ? it.light : "not_needed"; }
        if (/watchdog and the settings/.test(step)) { const ok = (c.items || []).filter((i) => i.kind === "launchagent" && /watchdog|settings/i.test(i.name)); return ok.length && ok.every((i) => i.light === "ok") ? "ok" : "unknown"; }
        if (/Wi-Fi/.test(step)) return c.manual_done && c.manual_done.wifi_power ? "hand" : "unknown";
        if (/BIOS/.test(step)) return c.manual_done && c.manual_done.bios_wol ? "hand" : "unknown";
        return "unknown";
      };
      return `<div class="card"><h3>${esc(c.name)}</h3><ul style="list-style:none;padding:0;margin:0">${steps.map((s) => { const l = lightFor(s); return `<li>${lightDot(l)}${esc(s)} <span class="muted small">${l === "hand" ? "(done by hand)" : l === "unknown" ? "– can't see from here" : ""}</span></li>`; }).join("")}</ul><p class="help">Generated set-up scripts and the [how] steps arrive with step 5.</p></div>`;
    }).join("");
  }

  // ---- Logs ------------------------------------------------------------------
  let logTab = "watchdog", logFilter = "";
  async function logs(rest) {
    logTab = rest[0] || logTab;
    const tabs = ["watchdog", "errors", "autofix", "settings"].map((n) => `<button class="${logTab === n ? "on" : ""}" onclick="location.hash='#logs/${n}'">${{ watchdog: "Watchdog", errors: "Errors", autofix: "Auto-fix days", settings: "Settings page" }[n]}</button>`).join("");
    const filters = logTab === "watchdog" ? `<div class="tabs">${["", "faults", "holds", "fixes", "auto", "errors"].map((f) => `<button class="${logFilter === f ? "on" : ""}" data-f="${f}">${f || "everything"}</button>`).join("")}</div>` : "";
    let data;
    if (logTab === "autofix") data = await api("/api/logs/autofix" + (rest[1] ? "?file=" + encodeURIComponent(rest[1]) : ""));
    else data = await api(`/api/logs/${logTab}?filter=${encodeURIComponent(logFilter)}`);
    const files = logTab === "autofix" ? `<p class="small">${(data.files || []).slice().reverse().map((f) => `<a href="#logs/autofix/${encodeURIComponent(f)}" class="${data.file === f ? "pill" : ""}">${esc(f.replace(" Auto-Fix.log", ""))}</a>`).join(" · ") || "no auto-fix days yet"}</p>` : "";
    main.innerHTML = `<h1>Logs</h1><p class="what">What the watchdog did and saw. Newest lines at the bottom.</p><div class="tabs">${tabs}</div>${filters}${files}<pre class="log">${esc((data.lines || []).join("\n")) || "(empty)"}</pre>`;
    for (const b of main.querySelectorAll("[data-f]")) b.onclick = () => { logFilter = b.dataset.f; logs(rest); };
    const pre = main.querySelector("pre.log"); pre.scrollTop = pre.scrollHeight;
  }

  // ---- History ----------------------------------------------------------------
  async function history(rest) {
    const h = await api("/api/history");
    let detail = "";
    if (rest[0]) {
      const d = await api("/api/history/" + encodeURIComponent(rest[0]));
      detail = `<div class="card"><h2>${esc(rest[0])}</h2><p class="muted">What is different between that version and now:</p>${d.changes_to_now.length ? `<ul>${d.changes_to_now.map((c) => `<li>${esc(c.text)}</li>`).join("")}</ul>` : "<p>Nothing: it is the same as now.</p>"}
        ${editing() ? `<button class="primary" id="goback">Go back to this version</button> <span class="help">It becomes your draft; Review & Apply puts it live.</span>` : `<p class="help">Switch Editing on to go back to it.</p>`}</div>`;
    }
    const rows = h.entries.map((e) => `<tr class="click" onclick="location.hash='#history/${encodeURIComponent(e.id)}'"><td>${esc(when(e.when))}</td><td>${esc(e.by)}</td><td>${esc(e.note)}</td><td class="small muted">${esc((e.actions || []).join(", "))}${e.outcome && e.outcome !== "applied" ? " · " + esc(e.outcome) : ""}</td></tr>`).join("");
    main.innerHTML = `<h1>History</h1><p class="what">Every version of the settings that was ever applied: who, when, the note, what was different.</p>
      <div class="row">${editing() && h.entries.length ? `<button id="undo">Undo the last change</button>` : ""}</div>
      <div class="tablewrap"><table><tr><th>when</th><th>who</th><th>note</th><th></th></tr>${rows || "<tr><td colspan=4 class='muted'>nothing yet</td></tr>"}</table></div>${detail}`;
    const gb = main.querySelector("#goback"); if (gb) gb.onclick = async () => { try { const r = await post("/api/restore/" + encodeURIComponent(rest[0])); state.draft = r.draft; badge(); location.hash = "#review"; } catch (e) { alertBox(e.message); } };
    const un = main.querySelector("#undo"); if (un) un.onclick = () => confirmBox("Undo the last change? The version before it becomes your draft; Review & Apply puts it live.", "Undo", async () => { try { const r = await post("/api/undo"); state.draft = r.draft; badge(); location.hash = "#review"; } catch (e) { alertBox(e.message); } });
  }

  // ---- Review & Apply -------------------------------------------------------------
  async function review() {
    const st = await api("/api/apply/status");
    if (st.state === "running") return applyProgress(st);
    const d = await api("/api/draft"); state.draft = d.draft; state.draftStale = !!d.stale; state.atemPending = !!d.atem_pending; badge();
    if (!state.draft) {
      main.innerHTML = `<h1>Review & Apply</h1><p class="what">Nothing to apply: there is no draft. Change something on any screen with Editing on.</p>${st.state === "done" || st.state === "failed" ? applyResult(st) : ""}`;
      return;
    }
    const r = await post("/api/validate", {});
    const changes = r.changes.map((c) => `<li class="${c.command ? "command" : ""}">${esc(c.text)}${c.command ? ' <span class="pill">command</span>' : ""}</li>`).join("") + (r.atem_pending ? "<li>A new saved switcher file replaces the current one.</li>" : "");
    const errors = r.errors.map((e) => `<li>${esc(e)}</li>`).join("");
    const warnings = r.warnings.map((w) => `<li>${esc(w)}</li>`).join("");
    const live = r.live && r.live.live ? `<div class="notice">Live now: ${esc(r.live.reason)}. Apply waits until it is over; your draft is saved. ${editing() ? '<button id="emergency" class="danger">Apply anyway (emergency)</button>' : ""}</div>` : "";
    main.innerHTML = `<h1>Review & Apply</h1><p class="what">Started by ${esc(state.draft.started_by || state.draft.by || "?")}${state.draft.started ? " at " + esc(when(state.draft.started)) : ""}. ${state.draftStale ? "<b>The live settings changed since this draft was started: look again before applying.</b>" : ""}</p>
      <div class="card"><h3>Your changes (${r.changes.length + (r.atem_pending ? 1 : 0)})</h3>${changes ? `<ul class="changes">${changes}</ul>` : "<p class='muted'>No change yet.</p>"}
        <p><b>What will happen:</b> ${esc(r.feel)}</p>
        ${errors ? `<div class="notice problem"><b>Not possible yet:</b><ul>${errors}</ul></div>` : ""}${warnings ? `<div class="notice grey"><b>Worth knowing:</b><ul>${warnings}</ul></div>` : ""}${live}
        <div class="field"><label for="note">Note for history</label><input id="note" placeholder="what you changed and why" maxlength="200"></div>
        <div class="row"><button class="primary" id="apply" ${errors || (r.live && r.live.live) || !editing() || !changes ? "disabled" : ""}>APPLY</button><button id="discard" ${editing() ? "" : "disabled"}>Throw the draft away</button></div></div>
      ${st.state === "done" || st.state === "failed" ? applyResult(st) : ""}`;
    const go = (emergency) => async () => {
      const note = main.querySelector("#note").value.trim();
      try { const res = await post("/api/apply", { note, emergency }); if (res.ok) { state.draft = null; state.atemPending = false; badge(); review(); } else alertBox(res.error); }
      catch (e) { alertBox(e.message); if (e.body && e.body.changed_since) { state.draftStale = true; badge(); } }
    };
    main.querySelector("#apply").onclick = go(null);
    const em = main.querySelector("#emergency"); if (em) em.onclick = () => dialog(`<h3>Apply during a live service</h3><p>${esc(r.feel)} Say why, and type LIVE.</p><input id="why" placeholder="why it cannot wait"><input id="word" placeholder="type LIVE"><div class="row"><button class="primary danger" id="dok">Apply now</button><button id="dcancel">Cancel</button></div>`, (b) => { b.querySelector("#dcancel").onclick = closeDialog; b.querySelector("#dok").onclick = () => { const why = b.querySelector("#why").value.trim(), word = b.querySelector("#word").value.trim(); if (word !== "LIVE" || !why) return; closeDialog(); go({ word, reason: why })(); }; });
    main.querySelector("#discard").onclick = () => confirmBox("Throw the draft away? Every change since the last Apply is lost.", "Throw it away", async () => { try { await post("/api/draft", {}, "DELETE"); state.draft = null; state.atemPending = false; badge(); review(); } catch (e) { alertBox(e.message); } });
  }
  function applyProgress(st) {
    main.innerHTML = `<h1>Applying…</h1><p class="what">${esc(st.note || "")}</p>${stepsHtml(st)}<p class="muted">This page updates by itself.</p>`;
    setTimeout(async () => { try { const s2 = await api("/api/apply/status"); if (s2.state === "running") applyProgress(s2); else { await loadAll(); route(); } } catch (e) { setTimeout(() => applyProgress(st), 2000); } }, 1500);
  }
  function stepsHtml(st) { return `<ol class="steps">${(st.steps || []).map((s) => `<li class="${esc(s.state)}">${lightDot(s.state === "ok" ? "ok" : s.state === "failed" ? "problem" : s.state === "running" ? "warn" : s.state === "skipped" ? "not_needed" : "unknown")}<b>${esc(s.name)}</b> ${esc(s.state === "skipped" ? "skipped: " + s.detail : s.detail || s.state)}</li>`).join("")}</ol>`; }
  function applyResult(st) { return `<div class="card"><h3>${st.state === "done" ? "Applied" : "Not applied"} <span class="muted small">${esc(when(st.finished))}${st.by ? " · " + esc(st.by) : ""}</span></h3><p>${esc(st.outcome)}</p>${stepsHtml(st)}</div>`; }

  // ---- Help ------------------------------------------------------------------
  async function help() {
    const facts = await api("/api/facts");
    const gl = state.schema.glossary || {};
    const cards = [
      ["Read a red key", "Green is fine. A flashing red key names the problem. Press it once to acknowledge (it stops flashing, stays dark red). Hold it 2 s and it runs the fix for what is failing."],
      ["Purple means the watchdog is down", "Every key turns purple when the watchdog on the Ingest Mac has been silent for 15 s. Open this page: if the Overview says Companion is not answering, the problem is Companion; otherwise press Restart the watchdog on the Overview."],
      ["Which computer or device is that?", "Computers › Map shows every computer and the keys that turn red if it dies; Computers › Gear lists the switcher, decks, recorders, wireless and LED gear with their addresses."],
      ["What is a connection?", "Companion's link to one device (a HyperDeck, the Tascam, the switcher). The keys watch those connections; Site setup › Companion lists them all and which key watches each."],
    ].map(([t, b]) => `<div class="card"><h3>${t}</h3><p>${b}</p></div>`).join("");
    const glossary = Object.entries(gl).filter(([g]) => !/while you hold/.test(g)).map(([g, words]) => `<details open><summary><b>${esc(g)}</b></summary><p class="mono small">${esc(words.join(" · "))}</p></details>`).join("");
    main.innerHTML = `<h1>Help</h1><p class="what">Start with the four cards. The pages below are made from the settings, so they are never out of date.</p><div class="cards">${cards}</div>
      <h2>Pages</h2><p><a href="/key-guide.html" target="_blank">What each key does</a> · <a href="/cheat.html" target="_blank">Cheat sheet (one page)</a> · <a href="/where.html" target="_blank">Where things are</a></p>
      <h2>Changing something</h2><ol><li>Switch Editing on (top right): the editing code and your first name.</li><li>Change it where it lives: a key on Keys, a computer on Computers, a fix on Fixes, the rest on Site setup.</li><li>The badge at the top counts your changes; it opens Review & Apply.</li><li>Review reads your changes back in plain words and says what will happen (the deck goes purple for a few seconds; pages re-import only when the layout changed). Press APPLY.</li><li>If the watchdog does not come back, the previous version is put back by itself. History keeps every version; Go back to any of them.</li></ol>
      <h2>First-day walkthrough (10 minutes, no code needed)</h2><ol><li>Overview: the live deck. Green, red, purple.</li><li>Click a red key (or any key): read what it checks and what holding it will do.</li><li>Logs › Watchdog, filter "holds": find a hold and what it did.</li><li>Keys › Restart page: each key restarts one thing, even when green.</li><li>Overview: when alarms are on and when auto-fix may act by itself.</li><li>Computers › Map: which computer a key talks to, and what runs there.</li><li>Help › What each key does: the whole deck in words.</li></ol>
      <h2>The words a key can show</h2>${glossary}
      <h2>Things only a person can do</h2><ul><li>Run the set-up script on a new computer (ARD on a Mac, PowerShell as administrator on a PC), allow Accessibility on the Studio B Mac, click Allow on the Spotify prompt once.</li><li>Create Companion's custom variables and the blink trigger, add pages, install modules, name the Stream Decks.</li><li>Type the Netgear login into the keychain; keep Google Drive signed in for the saved switcher files.</li><li>Save a new switcher file from ATEM Software Control when the show changes, then pick it on Site setup › ATEM.</li></ul>
      <h2>Companion facts (found by trying)</h2><dl class="kv">${(facts.facts || []).map(([q, a]) => `<dt>${esc(q)}</dt><dd>${esc(a)}</dd>`).join("")}</dl>`;
  }

  // ---- Site setup -----------------------------------------------------------------
  const HAND_MADE = ["tiles", "fixes", "hosts", "gear", "auto_fix.windows", "service_windows", "site.live_services", "auto_fix.fixes", "atem.reference", "spotify.playlist", "spotify.name", "restart_page.keys"];
  async function site(rest) {
    const c = cfg();
    const sections = { site: "Site", schedules: "Schedules", companion: "Companion", "network-dante": "Network & Dante", spotify: "Spotify", atem: "ATEM" };
    const which = sections[rest[0]] ? rest[0] : "site";
    const tabs = Object.entries(sections).map(([k, n]) => `<button class="${which === k ? "on" : ""}" onclick="location.hash='#site/${k}'">${n}</button>`).join("");
    const screen = sections[which];
    const own = Object.entries(state.schema.fields).filter(([p, f]) => f.screen === screen && !p.includes("[]") && !p.includes("*") && !HAND_MADE.includes(p) && !HAND_MADE.some((h) => h.startsWith(p + ".")) && !Object.keys(state.schema.fields).some((k) => k.startsWith(p + ".") || k.startsWith(p + "[]")));
    const fieldHtml = ([path, f]) => inputHtml(path, f, getPath(path));
    const plain = own.filter(([, f]) => !f.advanced), adv = own.filter(([, f]) => f.advanced);
    let body = own.length ? `<div class="card"><h3>Settings</h3>${plain.map(fieldHtml).join("") || "<p class='muted small'>Only numbers here; they sit under Advanced.</p>"}${adv.length ? `<details><summary>Advanced</summary>${adv.map(fieldHtml).join("")}</details>` : ""}</div>` : "";
    if (which === "companion") body = (await companionHtml()) + body;
    if (which === "schedules") body = schedulesHtml(c) + body;
    if (which === "network-dante") body += await danteHtml(c);
    if (which === "spotify") body = spotifyHtml(c) + body;
    if (which === "atem") body = (await atemHtml(c)) + body;
    main.innerHTML = `<h1>Site setup</h1><p class="what">Set up once. Each section opens on the few things a person changes; the numbers sit under Advanced.${editing() ? "" : " Switch Editing on to change anything."}</p><div class="tabs">${tabs}</div>${body}`;
    wireSite();
  }
  function windowsHtml(path, list, title, help) {
    const days = ["mon", "tue", "wed", "thu", "fri", "sat", "sun"];
    const dis = editing() ? "" : "disabled";
    const rows = (list || []).map((w, i) => `<div class="window" data-win="${path}.${i}">${days.map((d) => `<label class="inline"><input type="checkbox" data-day="${d}" ${(w.days || []).includes(d) ? "checked" : ""} ${dis}> ${d}</label>`).join("")} from <input class="hhmm" data-start value="${esc(w.start)}" ${dis}> to <input class="hhmm" data-end value="${esc(w.end)}" ${dis}> ${editing() ? `<button class="small" data-delwin="${path}.${i}">remove</button>` : ""}</div>`).join("");
    return `<div class="field"><label>${esc(title)}</label>${rows || "<p class='muted small'>none</p>"}${editing() ? `<button class="small" data-addwin="${path}">+ window</button>` : ""}<div class="help">${esc(help)}</div></div>`;
  }
  function schedulesHtml(c) {
    const fixes = Object.entries(c.fixes).map(([id, f]) => { const cl = closes(f); const on = (c.auto_fix.fixes || []).includes(id); return `<label class="inline"><input type="checkbox" data-autofix="${esc(id)}" ${on ? "checked" : ""} ${editing() && !cl && !f.never_auto ? "" : "disabled"}> ${esc(f.short || id)}${cl ? ' <span class="muted small">(closes a program: hold only)</span>' : f.never_auto ? ' <span class="muted small">(never by itself)</span>' : ""}</label>`; }).join(" ");
    return `<div class="notice">Alarms are on every day. The ALARMS key silences them until midnight, then they come back by themselves. Changes to the panel wait while a HyperDeck is recording.</div>
      <div class="card"><h3>Auto-fix</h3>${windowsHtml("auto_fix.windows", c.auto_fix.windows, "When auto-fix may act by itself", "An end earlier than the start runs past midnight.")}<div class="field"><label>Fixes it may run (gentle ones only)</label>${fixes}</div></div>
      <div class="card"><h3>Changes wait</h3>${windowsHtml("site.live_services", (c.site || {}).live_services, "Clock windows during which changes to the panel wait", "A recording HyperDeck always counts, whatever the clock says. NA has no clock windows.")}</div>`;
  }
  async function companionHtml() {
    const cc = await api("/api/companion");
    const lights = Object.entries(cc.lights || {}).map(([k, v]) => `<li>${lightDot(v === true ? "ok" : v === false ? "problem" : "unknown")}${esc(k)}</li>`).join("");
    const conns = (cc.connections || []).map((r) => `<tr><td>${lightDot(r.category === "good" ? "ok" : r.enabled ? "problem" : "not_needed")}${esc(r.label)}</td><td class="mono small">${esc(r.module || "")}</td><td class="small">${esc(r.enabled ? r.category || "" : "off")}${r.message ? ` <span class="muted">${esc(r.message)}</span>` : ""}</td><td class="small">${(r.watched_by || []).length ? r.watched_by.map((k) => `<a href="#keys/${esc(k)}">${esc(k.toUpperCase())}</a>`).join(", ") : '<span class="muted">not watched</span>'}</td></tr>`).join("");
    return `<div class="card"><h3>Companion ${cc.ok ? "OK" : "<b>not answering</b>"}${cc.build ? ` <span class="pill">${esc(cc.build)}</span>` : ""}</h3><p class="small muted">Set up once by the person who installed Companion. You normally only come here to see which connection a key watches.</p><ul style="list-style:none;padding:0">${lights}</ul>
      ${(cc.missing || []).length ? `<p class="notice">Keys watch connections Companion does not have: ${esc(cc.missing.join(", "))}</p>` : ""}
      ${cc.page_number_buttons ? `<p class="small">Page-number buttons coloured on ${cc.page_number_buttons.pages_coloured} pages (${esc(cc.page_number_buttons.recorded_in)}).</p>` : ""}
      <h3>Connections (live)</h3><div class="tablewrap"><table><tr><th>connection</th><th>module</th><th>status</th><th>watched by</th></tr>${conns}</table></div></div>`;
  }
  function danteCheck(c) { const t = c.tiles.find((t) => (t.checks || []).some((ch) => ch.type === "dante")); return t ? t.checks.find((ch) => ch.type === "dante") : null; }
  async function danteHtml(c) {
    const chk = danteCheck(c);
    if (!chk) return "";
    const snap = await api("/api/snapshot").catch(() => ({}));
    const map = snap.dante_map || {};
    const fixOf = (n) => typeof chk.fix === "object" && chk.fix ? (chk.fix[n] || "") : "";
    const fixSel = (n) => `<select data-dantefix="${esc(n)}" ${editing() ? "" : "disabled"}><option value="">(everything else)</option><option value="dante-auto" ${fixOf(n) === "dante-auto" ? "selected" : ""}>Dante auto</option>${Object.entries(c.fixes).map(([id, f]) => `<option value="${esc(id)}" ${fixOf(n) === id ? "selected" : ""}>${esc(f.short || id)}</option>`).join("")}</select>`;
    const rows = Object.entries(chk.devices || {}).map(([n, a]) => { const e = map[n] || {}; return `<tr><td class="mono small">${esc(n)}</td><td>${editing() ? `<input data-dantekey="${esc(n)}" value="${esc(a)}" size="10">` : esc(a)}</td><td class="mono small">${esc(e.ip || "")}</td><td class="small">${e.switch ? esc(e.switch + " port " + e.port) : ""}</td><td>${e.poe ? "yes" : ""}</td><td>${fixSel(n)}</td><td>${editing() ? `<button class="small danger" data-dantedel="${esc(n)}">remove</button>` : ""}</td></tr>`; }).join("");
    const extra = Object.keys(map).filter((n) => !((chk.devices || {})[n]));
    return `<div class="card"><h3>Dante device list (the DANTE key's devices)</h3><div class="tablewrap"><table><tr><th>Dante name</th><th>key text</th><th>address</th><th>switch / port</th><th>PoE</th><th>when it is gone, hold runs</th><th></th></tr>${rows}</table></div>
      <p class="small muted">Map from the last survey ${snap.dante_map_age != null ? esc(ago(snap.dante_map_age)) : "(none yet)"}.${editing() ? ` <button class="small" id="resurvey">Check the Dante network now</button>` : ""}</p>
      ${editing() ? `<div class="field"><label>Add a device</label><input id="dantenew" placeholder="Dante name (as Dante Controller shows it)" list="dantefound"><datalist id="dantefound">${extra.map((n) => `<option value="${esc(n)}">`).join("")}</datalist> <input id="dantenewkey" placeholder="key text" size="10"> <button class="small" id="danteadd">Add</button>${extra.length ? `<div class="help">Seen on the network but not listed: ${esc(extra.join(", "))}</div>` : ""}</div>` : ""}</div>`;
  }
  function spotifyHtml(c) {
    const s = c.spotify || {};
    return `<div class="card"><h3>The service playlist</h3><div class="field"><label>Playlist link</label><input id="splink" value="${esc(s.playlist || "")}" placeholder="paste the open.spotify.com/playlist/... link" ${editing() ? "" : "disabled"}> ${editing() ? `<button class="small" id="splook">Look it up</button>` : ""}<div class="help">The SPOTIFY key, the play fix and the key guide all use it.</div></div>
      <div class="field"><label>Name</label><input id="spname" value="${esc(s.name || "")}" ${editing() ? "" : "disabled"}><div class="help">As the keys say it.</div></div><p id="spinfo" class="help"></p></div>`;
  }
  async function atemHtml(c) {
    const folder = await api("/api/atem-reference/folder").catch(() => ({ files: [], mounted: false }));
    const pending = state.atemPending ? `<div class="notice">A new saved switcher file is waiting for Apply. ${editing() ? `<button class="small" id="atemdiscard">Discard it</button>` : ""}</div>` : "";
    return `<div class="card"><h3>The saved switcher file</h3><p class="small muted">The panel keeps the switcher's audio and camera settings in line with this file (atem-reference.xml). Save a new one from ATEM Software Control when the show changes.</p>${pending}
      ${editing() ? `<div class="row"><label class="btn">Upload a saved file <input type="file" id="atemfile" accept=".xml" hidden></label><button id="atemnewest" ${folder.mounted && (folder.files || []).length ? "" : "disabled"}>Pick the newest from the folder</button></div>` : ""}
      <p class="small">Folder: <span class="mono">${esc(folder.folder || "(not set)")}</span> ${folder.mounted ? `· newest: ${(folder.files || []).length ? esc(folder.files[0].name) + " (" + esc(when(folder.files[0].when)) + ")" : "none"}` : "· <b>not mounted</b>"}</p><p id="ateminfo" class="help"></p></div>`;
  }
  function wireSite() {
    const q = (s) => main.querySelector(s);
    for (const b of main.querySelectorAll("[data-addwin]")) b.onclick = () => { if (!ensureDraft()) return; const path = b.dataset.addwin; const list = (getPath(path, state.draft.config) || []).slice(); list.push({ days: ["sun"], start: "09:00", end: "12:00" }); setPath(path, list); route(); };
    for (const b of main.querySelectorAll("[data-delwin]")) b.onclick = () => { if (!ensureDraft()) return; const path = b.dataset.delwin.replace(/\.\d+$/, ""), i = +b.dataset.delwin.split(".").pop(); const list = (getPath(path, state.draft.config) || []).slice(); list.splice(i, 1); setPath(path, list); route(); };
    for (const w of main.querySelectorAll("[data-win]")) for (const el of w.querySelectorAll("input")) el.onchange = () => { if (!ensureDraft()) return; const path = w.dataset.win.replace(/\.\d+$/, ""), i = +w.dataset.win.split(".").pop(); const list = (getPath(path, state.draft.config) || []).slice(); list[i] = { days: [...w.querySelectorAll("[data-day]")].filter((x) => x.checked).map((x) => x.dataset.day), start: w.querySelector("[data-start]").value.trim(), end: w.querySelector("[data-end]").value.trim() }; setPath(path, list); };
    for (const cb of main.querySelectorAll("[data-autofix]")) cb.onchange = () => { if (!ensureDraft()) return; const set = new Set(state.draft.config.auto_fix.fixes || []); cb.checked ? set.add(cb.dataset.autofix) : set.delete(cb.dataset.autofix); setPath("auto_fix.fixes", [...set]); };
    const dc = () => danteCheck(state.draft.config);
    for (const el of main.querySelectorAll("[data-dantekey]")) el.onchange = () => { if (!ensureDraft()) return; dc().devices[el.dataset.dantekey] = el.value.trim(); saveDraft(); };
    for (const el of main.querySelectorAll("[data-dantefix]")) el.onchange = () => { if (!ensureDraft()) return; const ch = dc(); if (typeof ch.fix !== "object" || !ch.fix) ch.fix = { "*": ch.fix || "dante-auto" }; if (el.value) ch.fix[el.dataset.dantefix] = el.value; else delete ch.fix[el.dataset.dantefix]; saveDraft(); };
    for (const b of main.querySelectorAll("[data-dantedel]")) b.onclick = () => { if (!ensureDraft()) return; const ch = dc(); delete ch.devices[b.dataset.dantedel]; if (typeof ch.fix === "object" && ch.fix) delete ch.fix[b.dataset.dantedel]; saveDraft(); route(); };
    const da = q("#danteadd"); if (da) da.onclick = () => { if (!ensureDraft()) return; const n = q("#dantenew").value.trim(), k = q("#dantenewkey").value.trim(); if (!n) return; const ch = dc(); ch.devices = ch.devices || {}; ch.devices[n] = k || n.slice(0, 10).toUpperCase(); saveDraft(); route(); };
    const rs = q("#resurvey"); if (rs) rs.onclick = async () => { try { await post("/api/command", { text: "resurvey" }); alertBox("Asked the watchdog to look at the switches; the map updates within a minute."); } catch (e) { alertBox(e.message); } };
    const look = q("#splook"); if (look) look.onclick = async () => { const info = q("#spinfo"); info.textContent = "Looking…"; try { const r = await api("/api/live/spotify?url=" + encodeURIComponent(q("#splink").value)); if (!r.ok) { info.textContent = r.error; return; } if (!ensureDraft()) return; setPath("spotify.playlist", r.uri); if (r.name) { setPath("spotify.name", r.name); q("#spname").value = r.name; } q("#splink").value = r.uri; info.textContent = r.name ? `${r.name}: ${r.songs} songs. The play fix's words follow the name.` : (r.warning || ""); } catch (e) { info.textContent = e.message; } };
    const spname = q("#spname"); if (spname) spname.onchange = () => setPath("spotify.name", spname.value.trim());
    const splink = q("#splink"); if (splink) splink.onchange = () => { const m = splink.value.match(/(?:playlist[/:])([A-Za-z0-9]{22})/); if (m) setPath("spotify.playlist", "spotify:playlist:" + m[1]); else if (splink.value.trim()) alertBox("That is not a playlist link or URI."); };
    const af = q("#atemfile"); if (af) af.onchange = async () => { const f = af.files[0]; if (!f) return; try { const r = await fetch("/api/atem-reference", { method: "POST", headers: { "X-Edit-Key": state.editing, "X-Editor": state.name, "Content-Type": "application/xml" }, body: await f.arrayBuffer() }).then((x) => x.json()); showAtem(r); } catch (e) { alertBox(e.message); } };
    const an = q("#atemnewest"); if (an) an.onclick = async () => { try { showAtem(await post("/api/atem-reference/pick-newest")); } catch (e) { alertBox(e.message); } };
    const ad = q("#atemdiscard"); if (ad) ad.onclick = async () => { try { await post("/api/atem-reference/discard"); state.atemPending = false; badge(); route(); } catch (e) { alertBox(e.message); } };
    function showAtem(r) {
      if (!r.ok) { alertBox(r.error || "Not taken."); return; }
      state.atemPending = true; if (!state.draft && ensureDraft()) saveDraft(); badge();
      const diffs = (r.diffs || []).slice(0, 12).map((d) => d.part + " " + d.key + ": " + JSON.stringify(d.before) + " → " + JSON.stringify(d.after)).join("\n");
      alertBox(`${r.file ? r.file + ": " : ""}${r.product || ""}, ${r.audio} audio and ${r.camera} camera values; ${r.diff_count} differ from the current file${diffs ? ":\n" + diffs : "."}\nApply replaces the file.`);
      route();
    }
  }

  // ---- Fixes -------------------------------------------------------------------------
  async function fixes(rest) {
    const c = cfg(), auto = new Set(c.auto_fix.fixes || []);
    const used = {};
    const use = (f, who) => { if (f) (used[f] = used[f] || new Set()).add(who); };
    for (const t of c.tiles) { for (const ch of t.checks || []) for (const f of (typeof ch.fix === "object" && ch.fix ? Object.values(ch.fix) : [ch.fix])) use(f, t.label); use(t.hold_always, t.label); }
    for (const k of (c.restart_page || { keys: [] }).keys) use(k.fix, "restart key " + k.label);
    const rows = Object.entries(c.fixes).map(([id, f]) => `<tr class="click${rest[0] === id ? " sel" : ""}" onclick="location.hash='#fixes/${esc(id)}'"><td><b>${esc(f.short || id)}</b></td><td>${esc(f.label || "")}</td><td class="small">${esc(f.kind || "ssh")}${f.host ? " on " + esc((c.hosts[f.host] || {}).name || f.host) : f.kind === "local" || f.kind === "spotify" ? " on this Mac" : ""}</td><td class="small">${[...(used[id] || [])].join(", ")}</td><td class="small">${auto.has(id) ? "may run by itself" : f.never_auto ? "never by itself" : "hold only"}</td></tr>`).join("");
    const id = rest[0], f = c.fixes[id];
    let detail = "";
    if (f) {
      const kind = f.kind || "ssh";
      const fields = ["label", "short"].concat((state.schema.fix_kind_fields || {})[kind] || []).concat(["restart_ok", "never_auto", "timeout"]);
      const inputs = editing() ? [...new Set(fields)].map((fl) => {
        const Fd = F("fixes.*." + fl); if (!Fd) return "";
        if (fl === "host") return `<div class="field"><label>Computer</label><select data-path="fixes.${esc(id)}.host"><option value="">–</option>${Object.entries(c.hosts).filter(([, h]) => !h.self).map(([a, h]) => `<option value="${esc(a)}" ${f.host === a ? "selected" : ""}>${esc(h.name || a)}</option>`).join("")}</select></div>`;
        if (fl === "run") return `<div class="field"><label>Command (shown as a command at Review; never run before Apply)</label><textarea data-path="fixes.${esc(id)}.run" rows="3" class="mono">${esc(f.run || "")}</textarea><div class="help">zsh on a Mac, cmd.exe on a PC. ${esc(Fd.help)}</div></div>`;
        return inputHtml(`fixes.${id}.${fl}`, Fd, f[fl]);
      }).join("") : "";
      const kindSel = editing() ? `<div class="field"><label>Built as</label><select data-path="fixes.${esc(id)}.kind" class="kindsel">${(state.schema.fix_kinds || ["ssh", "local"]).map((k) => `<option ${kind === k ? "selected" : ""}>${k}</option>`).join("")}</select></div>` : "";
      const keys = [...(used[id] || [])];
      detail = `<div class="card"><h2>${esc(f.short || id)}</h2><p>${esc(f.label || "")}</p>${kindSel}${inputs}${canRunNow(id) && editing() ? `<p class="help">Run it from the key it belongs to (${esc(keys.join(", ") || "none yet")}).</p>` : ""}<details ${editing() ? "" : "open"}><summary>Advanced</summary><dl class="kv">${Object.entries(f).map(([k, v]) => `<dt>${esc(k)}</dt><dd class="mono small">${esc(typeof v === "object" ? JSON.stringify(v) : v)}</dd>`).join("")}<dt>id</dt><dd class="mono">${esc(id)}</dd></dl></details>${editing() && !keys.length ? `<button class="danger small" id="delfix">Delete this fix</button>` : ""}</div>`;
    }
    const add = editing() ? `<div class="row"><input id="newfix" placeholder="new fix id (letters, digits, _)"><button id="addfix" class="small">+ New fix</button></div>` : "";
    main.innerHTML = `<h1>Fixes</h1><p class="what">Everything a hold can run. ${Object.keys(c.fixes).length} today.</p>${add}<div class="tablewrap"><table><tr><th>key text</th><th>plain words</th><th>built as</th><th>used by</th><th>by itself</th></tr>${rows}</table></div>${detail}`;
    const ks = main.querySelector("select.kindsel"); if (ks) ks.onchange = () => { setPath(ks.dataset.path, ks.value); route(); };
    const del = main.querySelector("#delfix"); if (del) del.onclick = () => confirmBox(`Delete the fix ${id}? No key uses it.`, "Delete", () => { if (!ensureDraft()) return; delete state.draft.config.fixes[id]; const af2 = state.draft.config.auto_fix.fixes || []; state.draft.config.auto_fix.fixes = af2.filter((x) => x !== id); saveDraft(); location.hash = "#fixes"; });
    const af = main.querySelector("#addfix"); if (af) af.onclick = () => { const nid = main.querySelector("#newfix").value.trim(); if (!/^[A-Za-z0-9_]+$/.test(nid) || c.fixes[nid]) return alertBox("A new id: letters, digits and _ only, not in use."); if (!ensureDraft()) return; state.draft.config.fixes[nid] = { kind: "local", short: nid.toUpperCase().slice(0, 12), label: "", run: "" }; saveDraft(); location.hash = "#fixes/" + nid; };
  }
})();