{% extends "layout.html" %}
{% block body %}
<div class="page-head">
  <div>
    <h1>Einstellungen</h1>
    <p class="tiny">Drucker, Benachrichtigungen und Energiekosten.</p>
  </div>
</div>

<section class="card">
  <h2>Dieser Browser</h2>
  <p class="hint">Nur auf diesem Gerät / in diesem Browser. Anderer PC oder Inkognito bleibt unberührt.</p>
  <div class="field" style="max-width:16rem">
    <label for="display-mode">Anzeige</label>
    <select id="display-mode">
      <option value="desktop">Desktop</option>
      <option value="shelf">Regal (Touch)</option>
    </select>
  </div>
  <p class="hint">Regal: größere Bedienelemente, kompakte Navigation — ideal für ~1024×860 Touch am Regal. Shortcut: <code>?shelf=1</code></p>
  <div class="field" style="max-width:16rem; margin-top:0.85rem">
    <label for="tz-mode">Zeitzone</label>
    <select id="tz-mode">
      <option value="auto">Browser (automatisch)</option>
      <option value="Europe/Berlin">Europe/Berlin</option>
      <option value="Europe/Vienna">Europe/Vienna</option>
      <option value="Europe/Zurich">Europe/Zurich</option>
      <option value="UTC">UTC</option>
    </select>
  </div>
  <p class="hint">Für Protokoll, Bericht und Aktivitätszeiten. Nur dieser Browser.</p>
  <p id="display-note" class="ok" hidden>Gespeichert — gilt sofort.</p>
</section>

<section class="card">
  <h2>Automatik</h2>
  <label class="check"><input type="checkbox" id="auto-queue"> Warteschlange „wenn frei“ und Abläufe automatisch starten</label>
  <p class="hint">Aus = keine neuen Starts. Laufende Abläufe und gesperrte Drucker bleiben unberührt.</p>
  <div class="actions"><button type="button" id="auto-save">Speichern</button></div>
  <p id="auto-note"></p>
</section>

<section class="card admin-only">
  <h2>Slice-Ordner</h2>
  <p class="hint">Ordner, den Grotti für die Bibliothek beobachtet (Orca-Export, „Ordner neu lesen“). Leer = nur manueller Upload. Standard: Ordner <code>slice</code> im Grotti-Repo.</p>
  <div class="field" style="max-width:36rem">
    <label for="watch-dir">Pfad</label>
    <input id="watch-dir" type="text" autocomplete="off" placeholder="D:\Projekte\Grotti\slice" spellcheck="false">
  </div>
  <div class="actions">
    <button type="button" id="watch-save">Speichern</button>
    <button type="button" class="ghost" id="watch-default">Standardordner</button>
  </div>
  <p id="watch-note"></p>
</section>

<section class="card admin-only">
  <h2>Öffentliche Adresse</h2>
  <p class="hint">FQDN bzw. Basis-URL für QR-Codes auf Spulen-Etiketten. Leer = Host der aktuellen Anfrage (z.&nbsp;B. localhost).</p>
  <div class="field" style="max-width:28rem">
    <label for="fqdn">FQDN</label>
    <input id="fqdn" placeholder="https://grotti.example.de oder grotti.lan" autocomplete="off">
  </div>
  <p class="hint">Ohne Schema wird <code>https://</code> ergänzt. Mit Port: <code>http://10.10.1.5:8770</code>.</p>
  <div class="actions"><button type="button" id="fqdn-save">Speichern</button></div>
  <p id="fqdn-note"></p>
</section>

<section class="card admin-only">
  <h2>Drucker</h2>
  <p class="hint">Gesperrt = kein neuer „wenn frei“-Start auf diesem Drucker.</p>
  <div class="table-wrap">
    <table>
      <thead><tr><th>Name</th><th>Host</th><th>Familie</th><th>Gesperrt</th><th></th></tr></thead>
      <tbody id="printer-rows"></tbody>
    </table>
  </div>
  <form id="printer-add" class="grid-2" style="margin-top:1rem">
    <div class="field">
      <label for="add-name">Name</label>
      <input id="add-name" required placeholder="z. B. Kobra 3 Werkstatt">
    </div>
    <div class="field">
      <label for="add-host">Host / IP</label>
      <input id="add-host" required placeholder="10.10.1.60">
    </div>
    <div class="field">
      <label for="add-family">Familie</label>
      <select id="add-family">
        <option value="">automatisch</option>
        <option value="kobra_3">Kobra 3</option>
        <option value="kobra_s1">Kobra S1</option>
      </select>
    </div>
    <div class="actions" style="align-self:end"><button type="submit">Hinzufügen</button></div>
  </form>
  <p id="printer-note"></p>
</section>

<section class="card admin-only">
  <h2>Telegram</h2>
  <label class="check"><input type="checkbox" id="tg-enabled"> Benachrichtigungen aktiv</label>
  <div class="grid-2" style="margin-top:0.75rem">
    <div class="field">
      <label for="tg-token">Bot-Token</label>
      <input id="tg-token" type="password" autocomplete="off" placeholder="123456:ABC…">
    </div>
    <div class="field">
      <label for="tg-chat">Chat-ID</label>
      <input id="tg-chat" placeholder="z. B. -100… oder User-ID">
    </div>
  </div>
  <div class="grid-2" style="margin-top:0.75rem">
    <label class="check"><input type="checkbox" id="al-fertig"> Fertig</label>
    <label class="check"><input type="checkbox" id="al-fehler"> Fehler und Abbrüche</label>
    <label class="check"><input type="checkbox" id="al-offline"> Offline</label>
    <label class="check"><input type="checkbox" id="al-queue"> Queue (Fehler, Ablauf gestoppt)</label>
    <label class="check"><input type="checkbox" id="al-ablauf"> Ablauf-Schritte</label>
    <label class="check"><input type="checkbox" id="al-start"> Druckstart und Pause</label>
  </div>
  <p class="hint">Ereignisse stehen immer unter <a href="/aktivitaet">Aktivität</a>. Die Häkchen steuern nur Telegram.</p>
  <div class="actions">
    <button type="button" id="tg-save">Speichern</button>
    <button type="button" class="ghost" id="tg-test">Test senden</button>
  </div>
  <p id="tg-note"></p>
</section>

<section class="card admin-only">
  <h2>Energie</h2>
  <p class="hint">Kosten im Protokoll. Mit Düse-/Bett-Watt und ED-Proben schätzt Grotti den Verbrauch; sonst Dauer × Grundlast. Filament braucht eine Spule.</p>
  <div class="grid-2">
    <div class="field"><label for="en-watts">Grundlast W</label><input id="en-watts" type="number" step="1" title="Elektronik/Motion — nicht die Heizer"></div>
    <div class="field"><label for="en-kwh">€ / kWh</label><input id="en-kwh" type="number" step="0.01"></div>
    <div class="field"><label for="en-nozzle">Düse W</label><input id="en-nozzle" type="number" step="1" placeholder="z. B. 60"></div>
    <div class="field"><label for="en-bed">Bett W</label><input id="en-bed" type="number" step="1" placeholder="z. B. 220"></div>
    <div class="field"><label for="en-dryer">Trockner W</label><input id="en-dryer" type="number" step="1"></div>
    <div class="field"><label for="en-dryh">Trockenstunden</label><input id="en-dryh" type="number" step="0.1"></div>
    <div class="field"><label for="en-waste">Ausschuss %</label><input id="en-waste" type="number" step="0.1"></div>
    <div class="field"><label for="en-util">Auslastung %</label><input id="en-util" type="number" step="1"></div>
  </div>
  <p class="hint">Grundlast = Elektronik/Motion (nicht ganzer Drucker). Düse/Bett 0 = nur pauschal. Typisch Kobra: Düse ~60 W, Bett ~200–300 W.</p>
  <p id="en-ed-hint" class="hint" hidden></p>
  <div class="actions"><button type="button" id="en-save">Speichern</button></div>
  <p id="en-note"></p>
</section>

<section class="card admin-only">
  <h2>Benutzer</h2>
  <p class="hint">Rollen: <strong>Admin</strong> (alles) und <strong>Operator</strong> (Drucker, Queue, Material — keine Benutzerverwaltung).</p>
  <div class="table-wrap">
    <table>
      <thead><tr><th>Name</th><th>Rolle</th><th>Aktiv</th><th></th></tr></thead>
      <tbody id="user-rows"></tbody>
    </table>
  </div>
  <form id="user-add" class="grid-2" style="margin-top:1rem">
    <div class="field"><label for="user-name">Benutzer</label><input id="user-name" required minlength="2" autocomplete="off"></div>
    <div class="field"><label for="user-pass">Passwort</label><input id="user-pass" type="password" required minlength="8" autocomplete="new-password"></div>
    <div class="field">
      <label for="user-role">Rolle</label>
      <select id="user-role"><option value="operator">Operator</option><option value="admin">Admin</option></select>
    </div>
    <div class="actions" style="align-self:end"><button type="submit">Anlegen</button></div>
  </form>
  <p id="user-note"></p>
</section>

<section class="card">
  <h2>API-Tokens</h2>
  <p class="hint">Für App, Home-Automation oder MCP. Klartext erscheint nur einmal bei der Erstellung. Authorization: <code>Bearer grt_…</code></p>
  <div class="table-wrap">
    <table>
      <thead><tr><th>Name</th><th>Prefix</th><th>Rolle</th><th></th></tr></thead>
      <tbody id="token-rows"></tbody>
    </table>
  </div>
  <form id="token-add" class="grid-2" style="margin-top:1rem">
    <div class="field"><label for="token-name">Bezeichnung</label><input id="token-name" placeholder="Home Assistant" required></div>
    <div class="field">
      <label for="token-role">Rolle</label>
      <select id="token-role"><option value="operator">Operator</option><option value="admin">Admin</option></select>
    </div>
    <div class="actions" style="align-self:end"><button type="submit">Token erzeugen</button></div>
  </form>
  <p id="token-note"></p>
  <p class="ok" id="token-once" hidden></p>
  <p class="hint" id="legacy-token-hint" hidden>In der Config steht noch ein Shared-Token — der gilt weiter als Admin. Besser auf Benutzer-Tokens umstellen und <code>token</code> in der Config leeren.</p>
</section>
{% endblock %}
{% block script %}
<script>
const families = { kobra_3: "Kobra 3", kobra_s1: "Kobra S1", "": "—" };
const isAdmin = document.querySelector('meta[name="user-role"]')?.content === "admin";
document.querySelectorAll(".admin-only").forEach((el) => { el.hidden = !isAdmin; });
if (!isAdmin) {
  const roleSel = document.getElementById("token-role");
  if (roleSel) {
    [...roleSel.options].forEach((opt) => { if (opt.value === "admin") opt.remove(); });
  }
}

/* showNote aus api.js: Inline-Hinweis + Toast */

function renderPrinters(rows) {
  const body = document.getElementById("printer-rows");
  body.innerHTML = "";
  if (!rows.length) {
    body.innerHTML = '<tr><td class="empty" colspan="5">Keine Drucker.</td></tr>';
    return;
  }
  rows.forEach((row) => {
    const tr = document.createElement("tr");
    tr.innerHTML = `<td><input data-f="name"></td><td><input data-f="host"></td><td><select data-f="family">
      <option value="kobra_3">Kobra 3</option>
      <option value="kobra_s1">Kobra S1</option>
      <option value="">—</option>
    </select></td><td><label class="check"><input type="checkbox" data-f="locked"></label></td><td></td>`;
    tr.querySelector('[data-f="name"]').value = row.name || "";
    tr.querySelector('[data-f="host"]').value = row.host || "";
    tr.querySelector('[data-f="family"]').value = row.family || "";
    tr.querySelector('[data-f="locked"]').checked = !!row.locked;
    const save = document.createElement("button");
    save.type = "button";
    save.textContent = "Speichern";
    save.addEventListener("click", async () => {
      try {
        await api("/drucker/id/" + row.id, {
          method: "PATCH",
          json: {
            name: tr.querySelector('[data-f="name"]').value,
            host: tr.querySelector('[data-f="host"]').value,
            family: tr.querySelector('[data-f="family"]').value,
            locked: tr.querySelector('[data-f="locked"]').checked,
          },
        });
        showNote("printer-note", null, "Gespeichert: " + tr.querySelector('[data-f="name"]').value);
        load();
      } catch (error) {
        showNote("printer-note", error);
      }
    });
    const del = document.createElement("button");
    del.type = "button";
    del.className = "ghost warn";
    del.textContent = "Entfernen";
    del.addEventListener("click", () => {
      armButton(del, "Wirklich entfernen?", async () => {
        try {
          await api("/drucker/id/" + row.id, { method: "DELETE" });
          showNote("printer-note", null, "Drucker entfernt.");
          load();
        } catch (error) {
          showNote("printer-note", error);
        }
      });
    });
    tr.children[4].appendChild(save);
    tr.children[4].appendChild(del);
    body.appendChild(tr);
  });
}

function renderUsers(rows) {
  const body = document.getElementById("user-rows");
  if (!body) return;
  body.innerHTML = "";
  rows.forEach((row) => {
    const tr = document.createElement("tr");
    tr.innerHTML = `<td>${escapeHtml(row.username)}</td>
      <td><select data-f="role"><option value="operator">Operator</option><option value="admin">Admin</option></select></td>
      <td><label class="check"><input type="checkbox" data-f="active"></label></td><td></td>`;
    tr.querySelector('[data-f="role"]').value = row.role;
    tr.querySelector('[data-f="active"]').checked = !!row.active;
    const save = document.createElement("button");
    save.type = "button";
    save.textContent = "Speichern";
    save.addEventListener("click", async () => {
      try {
        await api("/users/" + row.id, {
          method: "PATCH",
          json: {
            role: tr.querySelector('[data-f="role"]').value,
            active: tr.querySelector('[data-f="active"]').checked,
          },
        });
        showNote("user-note", null, "Benutzer gespeichert.");
        loadUsers();
      } catch (error) {
        showNote("user-note", error);
      }
    });
    const del = document.createElement("button");
    del.type = "button";
    del.className = "ghost warn";
    del.textContent = "Löschen";
    del.addEventListener("click", () => {
      armButton(del, "Wirklich löschen?", async () => {
        try {
          await api("/users/" + row.id, { method: "DELETE" });
          showNote("user-note", null, "Benutzer gelöscht.");
          loadUsers();
        } catch (error) {
          showNote("user-note", error);
        }
      });
    });
    tr.children[3].appendChild(save);
    tr.children[3].appendChild(del);
    body.appendChild(tr);
  });
}

function renderTokens(rows) {
  const body = document.getElementById("token-rows");
  body.innerHTML = "";
  if (!rows.length) {
    body.innerHTML = '<tr><td class="empty" colspan="4">Keine Tokens.</td></tr>';
    return;
  }
  rows.forEach((row) => {
    const tr = document.createElement("tr");
    tr.innerHTML = `<td>${escapeHtml(row.name)}${row.username ? ' <span class="tiny">(' + escapeHtml(row.username) + ")</span>" : ""}</td>
      <td><code>${escapeHtml(row.prefix)}…</code></td>
      <td>${escapeHtml(row.role)}</td><td></td>`;
    const rev = document.createElement("button");
    rev.type = "button";
    rev.className = "ghost warn";
    rev.textContent = "Widerrufen";
    rev.addEventListener("click", () => {
      armButton(rev, "Widerrufen?", async () => {
        try {
          await api("/tokens/" + row.id, { method: "DELETE" });
          showNote("token-note", null, "Token widerrufen.");
          loadTokens();
        } catch (error) {
          showNote("token-note", error);
        }
      });
    });
    tr.children[3].appendChild(rev);
    body.appendChild(tr);
  });
}

async function loadUsers() {
  if (!isAdmin) return;
  renderUsers(await api("/users"));
}

async function loadTokens() {
  renderTokens(await api("/tokens" + (isAdmin ? "?all=1" : "")));
}

async function load() {
  const [settings, printers] = await Promise.all([
    api("/einstellungen"),
    api("/drucker?live=0"),
  ]);
  if (isAdmin) renderPrinters(printers);
  document.getElementById("auto-queue").checked = settings.auto_queue !== false;
  const watchDir = document.getElementById("watch-dir");
  if (watchDir) {
    watchDir.value = settings.watch_dir || "";
    watchDir.dataset.default = settings.watch_dir_default || "";
  }
  const fqdn = document.getElementById("fqdn");
  if (fqdn) fqdn.value = settings.fqdn || "";
  const tgEnabled = document.getElementById("tg-enabled");
  if (tgEnabled) {
    tgEnabled.checked = !!(settings.telegram && settings.telegram.enabled);
    document.getElementById("tg-token").value = "";
    document.getElementById("tg-token").placeholder = settings.telegram && settings.telegram.bot_token_set
      ? ("gesetzt: " + (settings.telegram.bot_token || "••••"))
      : "Bot-Token";
    document.getElementById("tg-chat").value = (settings.telegram && settings.telegram.chat_id) || "";
    const alerts = settings.alerts || {};
    document.getElementById("al-fertig").checked = alerts.fertig !== false;
    document.getElementById("al-fehler").checked = alerts.fehler !== false;
    document.getElementById("al-offline").checked = alerts.offline !== false;
    document.getElementById("al-queue").checked = alerts.queue !== false;
    document.getElementById("al-ablauf").checked = !!alerts.ablauf;
    document.getElementById("al-start").checked = !!alerts.start;
    const en = settings.energy || {};
    document.getElementById("en-watts").value = en.watts ?? 40;
    document.getElementById("en-nozzle").value = en.nozzle_watts ?? 60;
    document.getElementById("en-bed").value = en.bed_watts ?? 220;
    document.getElementById("en-kwh").value = en.euro_per_kwh ?? 0.35;
    document.getElementById("en-dryer").value = en.dryer_watts ?? 0;
    document.getElementById("en-dryh").value = en.dry_hours ?? 0;
    document.getElementById("en-waste").value = en.waste_percent ?? 0;
    document.getElementById("en-util").value = en.utilization ?? 50;
    updateEnergyEdHint();
  }
  const legacy = document.getElementById("legacy-token-hint");
  if (legacy) legacy.hidden = !settings.legacy_token_set;
  await Promise.all([loadUsers(), loadTokens()]);
}

document.getElementById("user-add")?.addEventListener("submit", async (event) => {
  event.preventDefault();
  try {
    await api("/users", {
      method: "POST",
      json: {
        username: document.getElementById("user-name").value,
        password: document.getElementById("user-pass").value,
        role: document.getElementById("user-role").value,
      },
    });
    document.getElementById("user-add").reset();
    showNote("user-note", null, "Benutzer angelegt.");
    loadUsers();
  } catch (error) {
    showNote("user-note", error);
  }
});

document.getElementById("token-add").addEventListener("submit", async (event) => {
  event.preventDefault();
  const once = document.getElementById("token-once");
  once.hidden = true;
  try {
    const out = await api("/tokens", {
      method: "POST",
      json: {
        name: document.getElementById("token-name").value,
        role: document.getElementById("token-role").value,
      },
    });
    document.getElementById("token-add").reset();
    once.hidden = false;
    once.textContent = "Token (nur jetzt sichtbar): " + out.token;
    showNote("token-note", null, "Token erzeugt — jetzt kopieren.");
    loadTokens();
  } catch (error) {
    showNote("token-note", error);
  }
});

document.getElementById("auto-save").addEventListener("click", async () => {
  try {
    await api("/einstellungen", {
      method: "PATCH",
      json: { auto_queue: document.getElementById("auto-queue").checked },
    });
    showNote(
      "auto-note",
      null,
      document.getElementById("auto-queue").checked ? "Automatik an." : "Automatik aus — nichts Neues startet."
    );
  } catch (error) {
    showNote("auto-note", error);
  }
});

document.getElementById("watch-default")?.addEventListener("click", () => {
  const input = document.getElementById("watch-dir");
  if (input) input.value = input.dataset.default || "";
});

document.getElementById("watch-save")?.addEventListener("click", async () => {
  try {
    const out = await api("/einstellungen", {
      method: "PATCH",
      json: { watch_dir: document.getElementById("watch-dir").value.trim() },
    });
    document.getElementById("watch-dir").value = out.watch_dir || "";
    showNote(
      "watch-note",
      null,
      out.watch_dir
        ? "Slice-Ordner aktiv: " + out.watch_dir
        : "Kein Slice-Ordner — nur manueller Upload."
    );
  } catch (error) {
    showNote("watch-note", error);
  }
});

document.getElementById("fqdn-save").addEventListener("click", async () => {
  try {
    const out = await api("/einstellungen", {
      method: "PATCH",
      json: { fqdn: document.getElementById("fqdn").value.trim() },
    });
    document.getElementById("fqdn").value = out.fqdn || "";
    showNote(
      "fqdn-note",
      null,
      out.fqdn
        ? "Gespeichert — Etiketten-QR: " + out.fqdn + "/material?spool=…"
        : "Leer — Etiketten nutzen den Request-Host."
    );
  } catch (error) {
    showNote("fqdn-note", error);
  }
});

document.getElementById("printer-add").addEventListener("submit", async (event) => {
  event.preventDefault();
  try {
    await api("/drucker", {
      method: "POST",
      json: {
        name: document.getElementById("add-name").value,
        host: document.getElementById("add-host").value,
        family: document.getElementById("add-family").value,
      },
    });
    document.getElementById("printer-add").reset();
    showNote("printer-note", null, "Drucker angelegt.");
    load();
  } catch (error) {
    showNote("printer-note", error);
  }
});

document.getElementById("tg-save").addEventListener("click", async () => {
  const token = document.getElementById("tg-token").value.trim();
  const payload = {
    telegram: {
      enabled: document.getElementById("tg-enabled").checked,
      chat_id: document.getElementById("tg-chat").value.trim(),
    },
    alerts: {
      fertig: document.getElementById("al-fertig").checked,
      fehler: document.getElementById("al-fehler").checked,
      offline: document.getElementById("al-offline").checked,
      queue: document.getElementById("al-queue").checked,
      ablauf: document.getElementById("al-ablauf").checked,
      start: document.getElementById("al-start").checked,
    },
  };
  if (token) payload.telegram.bot_token = token;
  try {
    await api("/einstellungen", { method: "PATCH", json: payload });
    showNote("tg-note", null, "Telegram gespeichert.");
    load();
  } catch (error) {
    showNote("tg-note", error);
  }
});

document.getElementById("tg-test").addEventListener("click", async () => {
  try {
    await api("/telegram/test", { method: "POST", json: {} });
    showNote("tg-note", null, "Testnachricht gesendet.");
  } catch (error) {
    showNote("tg-note", error);
  }
});

function updateEnergyEdHint() {
  const hint = document.getElementById("en-ed-hint");
  if (!hint) return;
  const nozzle = Number(document.getElementById("en-nozzle").value) || 0;
  const bed = Number(document.getElementById("en-bed").value) || 0;
  if (nozzle > 0 && bed > 0) {
    hint.hidden = true;
    hint.textContent = "";
    return;
  }
  hint.hidden = false;
  hint.textContent = "Düse oder Bett noch 0 — Bericht bleibt „pauschal“. Für ED z. B. Düse 60 W und Bett 220 W setzen.";
}

["en-nozzle", "en-bed"].forEach((id) => {
  const node = document.getElementById(id);
  if (node) node.addEventListener("input", updateEnergyEdHint);
});

document.getElementById("en-save").addEventListener("click", async () => {
  try {
    const nozzle = Number(document.getElementById("en-nozzle").value) || 0;
    const bed = Number(document.getElementById("en-bed").value) || 0;
    await api("/einstellungen", {
      method: "PATCH",
      json: {
        energy: {
          watts: Number(document.getElementById("en-watts").value),
          nozzle_watts: nozzle,
          bed_watts: bed,
          euro_per_kwh: Number(document.getElementById("en-kwh").value),
          dryer_watts: Number(document.getElementById("en-dryer").value),
          dry_hours: Number(document.getElementById("en-dryh").value),
          waste_percent: Number(document.getElementById("en-waste").value),
          utilization: Number(document.getElementById("en-util").value),
        },
      },
    });
    updateEnergyEdHint();
    if (nozzle <= 0 || bed <= 0) {
      const note = document.getElementById("en-note");
      if (note) {
        note.textContent = "Gespeichert. Düse/Bett 0 → nur pauschal. Für ED z. B. 60 / 220 W setzen.";
        note.className = "msg";
      }
      toast("Energie gespeichert — ED noch aus (Düse/Bett 0).", "bad");
    } else {
      showNote("en-note", null, "Energie gespeichert.");
    }
  } catch (error) {
    showNote("en-note", error);
  }
});

(function initDisplayMode() {
  const sel = document.getElementById("display-mode");
  if (!sel) return;
  try {
    sel.value = localStorage.getItem("grotti-display") === "shelf" ? "shelf" : "desktop";
  } catch (error) {
    sel.value = "desktop";
  }
  sel.addEventListener("change", () => {
    if (typeof setDisplayMode === "function") setDisplayMode(sel.value);
    else {
      try { localStorage.setItem("grotti-display", sel.value === "shelf" ? "shelf" : "desktop"); } catch (error) {}
      document.documentElement.classList.toggle("shelf", sel.value === "shelf");
      document.body.classList.toggle("shelf", sel.value === "shelf");
    }
    const note = document.getElementById("display-note");
    if (note) {
      note.hidden = false;
      setTimeout(() => { note.hidden = true; }, 2500);
    }
  });
})();

(function initTimeZone() {
  const sel = document.getElementById("tz-mode");
  if (!sel) return;
  const known = ["auto", "Europe/Berlin", "Europe/Vienna", "Europe/Zurich", "UTC"];
  try {
    const value = localStorage.getItem(TZ_KEY) || "auto";
    sel.value = known.includes(value) ? value : "auto";
  } catch (error) {
    sel.value = "auto";
  }
  sel.addEventListener("change", () => {
    try { localStorage.setItem(TZ_KEY, sel.value || "auto"); } catch (error) {}
    const note = document.getElementById("display-note");
    if (note) {
      note.hidden = false;
      setTimeout(() => { note.hidden = true; }, 2500);
    }
  });
})();

load().catch((error) => showNote("printer-note", error));
</script>
{% endblock %}