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gandalf/static/rack.js
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jaredandClaude Opus 5.5 5fdd317539
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Rack: clicking a port on an unlinked faceplate opens the cutsheet
The NVR Pro is drawn by Front drawing because UniFi doesn't report it, so
it has no device page; clicking one of its ports went to /device/UNVR-Pro
and showed "No device with this name". Ports on a faceplate whose item
isn't linked to a live device now open the port's cable when one is
documented, and otherwise the item on the cutsheet.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-10 23:53:18 -05:00

587 lines
26 KiB
JavaScript

'use strict';
/* global FACEPLATES, renderFaceplate, RACK_CAN_EDIT, RACK_FRONTS, CHASSIS_FACEPLATES, rackFrontSvg */
// Rack page: draws the rack front from /api/rack. Switches use their real faceplates,
// patch panels a generic panel; hovering a port lights up every port on the same cable run.
const esc = s => lt.escHtml(s == null ? '' : String(s));
const RATIO = 10.5; // a 19" rack's width to one unit's height
const KIND_TEXT = { patch_panel: 'Patch panel', wall_jack: 'Wall jack', device: 'Device', shelf: 'Shelf', other: 'Other' };
let _rack = null;
function speedText(mbps) {
if (!mbps) return '';
return mbps >= 1000 ? `${mbps / 1000}G` : `${mbps}M`;
}
function portMapOf(ports) {
const map = {};
Object.entries(ports || {}).forEach(([name, p]) => {
if (p.port_idx != null) map[p.port_idx] = Object.assign({ name }, p);
});
return map;
}
function portTitle(port, idx) {
const parts = [port && port.name && port.name !== `Port ${idx}` ? `Port ${idx} "${port.name}"` : `Port ${idx}`];
if (port) {
parts.push(port.up ? (speedText(port.speed_mbps) || 'up') : 'down');
const nb = port.lldp && (port.lldp.system_name || port.lldp.chassis_id);
if (nb) parts.push(`→ ${nb}`);
}
return esc(parts.join(' · '));
}
function isRackFaceplate(model) {
const spec = FACEPLATES[model];
return !!spec && !/fp-desk/.test(spec.frameClass || '');
}
// ── Item drawings ───────────────────────────────────────────────────────
function switchHtml(item, model) {
// A live switch, or a faceplate picked by Front drawing (no port data: drawn unlinked)
const sw = item.switch || { model, ports: {}, outlets: [], online: item.status === 'up' };
return renderFaceplate(model || sw.model, {
swName: item.device, portMap: portMapOf(sw.ports), outlets: sw.outlets, online: sw.online, rack: true,
titleFor: (port, idx) => portTitle(port, idx),
cutsheetFor: idx => {
const m = item.ports[String(idx)];
return m ? { mark: m.mark, text: m.text } : null;
},
});
}
function panelSvg(item) {
const count = Math.max(1, item.port_count || 24);
const units = item.rack_height || 1;
const rows = Math.max(1, Math.min(units * 2, Math.ceil(count / 24)));
const perRow = Math.ceil(count / rows);
const W = 1100, H = 105 * units, ear = 70;
const pitch = Math.min(38, (W - ear * 2 - 40) / perRow);
const left = (W - pitch * perRow) / 2;
const rowH = (H - 20) / rows;
// Label characters that fit under one port at the label's font size (9px, ~5.6px a character)
const fit = Math.max(3, Math.floor((pitch - 2) / 5.6));
const short = (t, max = fit) => (t.length > max ? `${t.slice(0, max - 1)}…` : t);
const ports = [];
for (let n = 1; n <= count; n++) {
const r = Math.floor((n - 1) / perRow), c = (n - 1) % perRow;
const x = left + c * pitch + pitch / 2, y = 10 + r * rowH + rowH / 2;
const m = item.ports[String(n)];
const label = item.labels[String(n)] || '';
const title = [`Port ${n}`, label && `"${label}"`, m ? m.text : 'not on the cutsheet'].filter(Boolean).join(' · ');
const attrs = m ? ` data-run="${m.run.join(' ')}" data-cable="${m.cable_id}" tabindex="0" role="link"` : '';
ports.push(`<g class="rack-pp-port${m ? ` rack-pp-${m.mark}` : ''}"${attrs} transform="translate(${x} ${y})">
<title>${esc(title)}</title>
<text class="rack-pp-num" y="-17" text-anchor="middle">${n}</text>
<rect class="rack-pp-jack" x="-12" y="-10" width="24" height="20" rx="2"/>
<rect class="rack-pp-hit" x="${-pitch / 2}" y="-28" width="${pitch}" height="56"/>
${label ? `<text class="rack-pp-label" y="24" text-anchor="middle">${esc(short(label))}</text>` : ''}
</g>`);
}
return `<svg class="rack-svg" viewBox="0 0 ${W} ${H}" preserveAspectRatio="xMidYMid meet" role="group"
aria-label="${esc(item.name)} patch panel">
<rect class="rack-pp-body" width="${W}" height="${H}" rx="3"/>
<text class="rack-pp-name" x="14" y="17"><title>${esc(item.name)}</title>${esc(short(item.name, 48))}</text>
${ports.join('')}
</svg>`;
}
const STATUS_CLASS = { up: 'dot-up', down: 'dot-down', degraded: 'dot-degraded' };
function statusDot(status) {
return status ? `<span class="${STATUS_CLASS[status] || 'dot-unknown'}" title="${esc(status)}"></span>` : '';
}
function shelfHtml(item) {
const contents = item.contents || [];
const things = contents.map(c => `
<a class="rack-shelf-thing" href="${esc(c.url)}" title="${esc([c.name, c.model, c.status].filter(Boolean).join(' · '))}">
${statusDot(c.status)}<span class="rack-shelf-name">${esc(c.name)}</span>
</a>`).join('');
return `<div class="rack-plate rack-shelf">
<span class="rack-shelf-label">${esc(item.name)}</span>
<div class="rack-shelf-things">${things || '<span class="rack-plate-sub">empty shelf</span>'}</div>
</div>`;
}
// Ubiquiti UACC-Rack-Panel-Patch-Blank-24, laid out from the CC0 NetBox devicetype-library image
// (elevation-images/Ubiquiti/ubiquiti-uacc-rack-panel-patch-blank-24.front.png): a grey steel face,
// darker ears with oval holes, 24 square keystone openings in one row with the cable-support bar
// behind them, and a narrow cable slot at each end. A port with a documented cable gets a keystone jack.
function uaccPanelSvg(item) {
const W = 1178, H = 108, x0 = 107, pitch = 40.5, ow = 34, oy = 36, oh = 40;
const count = Math.min(item.port_count || 24, 24);
const ports = [];
for (let n = 1; n <= count; n++) {
const x = x0 + (n - 1) * pitch;
const m = item.ports[String(n)];
const label = item.labels[String(n)] || '';
const title = [`Port ${n}`, label && `"${label}"`, m ? m.text : 'not on the cutsheet'].filter(Boolean).join(' · ');
const attrs = m ? ` data-run="${m.run.join(' ')}" data-cable="${m.cable_id}" tabindex="0" role="link"` : '';
const jack = m ? `<rect class="ua-keystone" x="${x + 3}" y="${oy + 3}" width="${ow - 6}" height="${oh - 6}" rx="2"/>
<path class="ua-keystone-hole" d="M${x + 7} ${oy + 13} h20 v14 h-4 v4 h-12 v-4 h-4 z"/>` : '';
ports.push(`<g class="rack-pp-port ua-port${m ? ` rack-pp-${m.mark}` : ''}"${attrs}>
<title>${esc(title)}</title>
<rect class="ua-open" x="${x}" y="${oy}" width="${ow}" height="${oh}"/>
<rect class="ua-bar" x="${x}" y="${oy + 19}" width="${ow}" height="5"/>
${jack}
<rect class="rack-pp-jack ua-mark" x="${x - 1}" y="${oy - 1}" width="${ow + 2}" height="${oh + 2}" rx="1"/>
<text class="ua-num" x="${x + ow / 2}" y="${oy - 6}" text-anchor="middle">${n}</text>
${label ? `<text class="ua-label" x="${x + ow / 2}" y="${oy + oh + 12}" text-anchor="middle">${esc(label.length > 7 ? `${label.slice(0, 6)}…` : label)}</text>` : ''}
<rect class="rack-pp-hit" x="${x - 3}" y="${oy - 16}" width="${pitch}" height="${oh + 32}"/>
</g>`);
}
const hole = (x, y) => `<rect class="ua-hole" x="${x}" y="${y}" width="22" height="13" rx="6.5"/>`;
return `<svg class="rack-svg" viewBox="0 0 ${W} ${H}" preserveAspectRatio="none" role="group"
aria-label="${esc(item.name)} patch panel">
<title>${esc(item.name)}</title>
<rect class="ua-ear" x="0" y="2" width="44" height="${H - 4}" rx="3"/>
<rect class="ua-ear" x="${W - 44}" y="2" width="44" height="${H - 4}" rx="3"/>
${hole(8, 12)}${hole(8, 83)}${hole(W - 30, 12)}${hole(W - 30, 83)}
<rect class="ua-face" x="36" y="0" width="${W - 72}" height="${H}" rx="2"/>
<rect class="ua-lip" x="36" y="0" width="${W - 72}" height="4"/>
<rect class="ua-open" x="62" y="${oy}" width="28" height="${oh}"/><rect class="ua-bar" x="62" y="${oy + 19}" width="28" height="5"/>
<rect class="ua-open" x="${W - 95}" y="${oy}" width="28" height="${oh}"/><rect class="ua-bar" x="${W - 95}" y="${oy + 19}" width="28" height="5"/>
${ports.join('')}
</svg>`;
}
function plateHtml(item) {
const unlinked = item.kind === 'device' && !item.linked;
const sub = [item.device !== item.name ? item.device : '', KIND_TEXT[item.kind] || item.kind, item.location,
unlinked ? 'not linked to a Gandalf device' : ''].filter(Boolean).join(' · ');
return `<div class="rack-plate">
${statusDot(item.status)}<a class="device-link rack-plate-name" href="${esc(item.url)}">${esc(item.name)}</a>
<span class="rack-plate-sub">${esc(sub)}</span>
</div>`;
}
function backHtml(item) {
// A full-depth item seen from the rear: its back, not its faceplate
return `<div class="rack-plate rack-back">
${statusDot(item.status)}<a class="device-link rack-plate-name" href="${esc(item.url)}">${esc(item.name)}</a>
<span class="rack-plate-sub">back of a full-depth ${esc(KIND_TEXT[item.kind] || item.kind).toLowerCase()}</span>
</div>`;
}
function itemHtml(item) {
let body;
if (item.through) body = backHtml(item);
else if (item.switch && isRackFaceplate(item.switch.model)) body = switchHtml(item);
else if (CHASSIS_FACEPLATES[item.chassis]) body = switchHtml(item, CHASSIS_FACEPLATES[item.chassis]);
else if (item.chassis && RACK_FRONTS[item.chassis]) body = rackFrontSvg(item.chassis, item);
else if (item.kind === 'patch_panel' && item.chassis === 'uacc-patch-24') body = uaccPanelSvg(item);
else if (item.kind === 'patch_panel') body = panelSvg(item);
else if (item.kind === 'shelf') body = shelfHtml(item);
else body = plateHtml(item);
return `<div class="rack-item rack-kind-${esc(item.kind)}" data-item="${esc(item.id)}">${body}</div>`;
}
function uLabels(top, bottom) {
const spans = [];
for (let u = top; u >= bottom; u--) spans.push(`<span>${u}</span>`);
return `<div class="rack-u" aria-hidden="true">${spans.join('')}</div>`;
}
// Long runs of empty units are folded into one thin band unless the viewer asks for them
const GAP_MIN = 3;
function showEmpty() {
try { return localStorage.getItem('gandalf.rackShowEmpty') === '1'; } catch (_) { return false; }
}
function gapRow(top, bottom) {
const n = top - bottom + 1;
return `<div class="rack-row rack-row-gap" data-gap="${n}" style="--n:${n}">
<div class="rack-u" aria-hidden="true"></div>
<div class="rack-gap">U${bottom}-${top} · ${n}U free</div>
</div>`;
}
function row(top, bottom, inner, cls) {
const n = top - bottom + 1;
return `<div class="rack-row ${cls}" style="--n:${n}">
${uLabels(top, bottom)}
<div class="rack-slot" style="aspect-ratio:${RATIO} / ${n}">${inner}</div>
</div>`;
}
// ── Page ────────────────────────────────────────────────────────────────
function renderTabs(data) {
const tabs = document.getElementById('rack-tabs');
tabs.hidden = data.racks.length < 2;
tabs.innerHTML = data.racks.map(r => {
const on = r.name === data.rack;
return `<button type="button" class="rack-tab${on ? ' active' : ''}" role="tab" aria-selected="${on}"
data-rack="${esc(r.name)}">${esc(r.name)} <span class="rack-tab-count">${r.count}</span></button>`;
}).join('');
document.getElementById('rack-title').textContent = `${data.rack} · ${data.face}`;
document.querySelectorAll('.rack-face-btn').forEach(b => {
const on = b.dataset.face === data.face;
b.classList.toggle('active', on);
b.setAttribute('aria-pressed', on);
});
const rear = (data.racks.find(r => r.name === data.rack) || {}).rear || 0;
document.querySelector('.rack-face-btn[data-face="rear"]').textContent = rear ? `Rear (${rear})` : 'Rear';
}
function render(data) {
_rack = data;
renderTabs(data);
const byTop = Object.fromEntries(data.items.map(i => [i.rack_top, i]));
const rows = [];
let u = data.units;
while (u >= 1) {
const item = byTop[u];
if (item) {
rows.push(row(u, item.rack_u, itemHtml(item), 'rack-row-item'));
u = item.rack_u - 1;
continue;
}
let low = u;
while (low - 1 >= 1 && !byTop[low - 1]) low--;
rows.push(!showEmpty() && u - low + 1 >= GAP_MIN ? gapRow(u, low) : row(u, low, '', 'rack-row-empty'));
u = low - 1;
}
document.getElementById('rack').innerHTML = rows.join('');
// Every rack device is 19" wide: stretch a faceplate to fill its slot when its drawing is close to
// the slot's proportions. A drawing far from them (the PDU's is twice as tall as a real 1U) keeps its
// shape rather than being squashed.
document.querySelectorAll('#rack .rack-slot').forEach(slot => {
const svg = slot.querySelector('.fp-svg');
if (!svg) return;
const [, , w, h] = svg.getAttribute('viewBox').split(' ').map(Number);
const n = parseInt(slot.closest('.rack-row').style.getPropertyValue('--n'), 10);
const off = (w / h) / (RATIO / n);
svg.setAttribute('preserveAspectRatio', off > 0.85 && off < 1.15 ? 'none' : 'xMidYMid meet');
});
document.getElementById('rack-show-empty').checked = showEmpty();
document.getElementById('rack-count').textContent = data.items.length;
// Faceplate ports carry their cable run too, for hover and click
document.querySelectorAll('.rack-item .fp-port').forEach(g => {
const item = data.items.find(i => i.device === g.dataset.switch);
const m = item && item.ports[g.dataset.portIdx];
if (m) {
g.dataset.run = m.run.join(' ');
g.dataset.cable = m.cable_id;
}
});
const notes = [];
data.overlaps.forEach(o => notes.push(`<strong>${esc(o.name)}</strong> (${esc(o.units)}) overlaps ${esc(o.with.join(', '))} and is not drawn.`));
data.outside.forEach(o => notes.push(`<strong>${esc(o.name)}</strong> (${esc(o.units)}) is above the top of a ${data.units}U rack and is not drawn.`));
const warn = document.getElementById('rack-warnings');
warn.hidden = !notes.length;
warn.innerHTML = notes.length ? `<ul>${notes.map(n => `<li>${n}</li>`).join('')}</ul>
<p>Fix the rack unit on the <a href="/cutsheet#cs-items-section">cutsheet</a>.</p>` : '';
const unplaced = document.getElementById('rack-unplaced');
unplaced.innerHTML = data.unplaced.length
? `Not in the drawing (no rack unit set): ${data.unplaced.map(n => `<span class="cs-chip">${esc(n)}</span>`).join(' ')}`
: '';
if (!data.items.length) {
document.getElementById('rack').insertAdjacentHTML('afterbegin',
`<div class="lt-empty-state lt-empty-state--sm rack-empty"><div class="lt-empty-state-title">Nothing placed yet</div>
<div class="lt-empty-state-text">Give panels, shelves and devices a rack unit on the <a href="/cutsheet">cutsheet</a> and they appear here.</div></div>`);
}
}
function readout(el) {
const out = document.getElementById('rack-readout');
if (!el) {
out.textContent = 'Hover a port to follow its cable.';
return;
}
const title = el.querySelector('title');
out.textContent = title ? title.textContent : '';
}
function highlight(el) {
const ids = el && el.dataset.run ? el.dataset.run.split(' ') : [];
document.querySelectorAll('#rack [data-run]').forEach(x => {
x.classList.toggle('rack-hl', ids.length > 0 && x.dataset.run.split(' ').some(i => ids.includes(i)));
});
}
function portAt(target) {
return target.closest && target.closest('#rack .fp-port, #rack .rack-pp-port');
}
function onEnter(e) {
const el = portAt(e.target);
if (!el) return;
highlight(el);
readout(el);
}
function onLeave(e) {
const el = portAt(e.target);
if (el && !el.contains(e.relatedTarget)) {
highlight(null);
readout(null);
}
}
function openPort(el) {
if (el.classList.contains('fp-port')) {
const item = _rack && _rack.items.find(i => i.device === el.dataset.switch);
if (item && !item.linked) {
// A faceplate drawn by Front drawing for gear Gandalf can't see (the NVR) has no device page:
// open the port's cable if one is documented, otherwise the item on the cutsheet
location.href = el.dataset.cable ? `/cutsheet#cable-${encodeURIComponent(el.dataset.cable)}` : item.url;
return;
}
location.href = `/device/${encodeURIComponent(el.dataset.switch)}#port-${encodeURIComponent(el.dataset.portIdx)}`;
} else if (el.dataset.cable) {
location.href = `/cutsheet#cable-${encodeURIComponent(el.dataset.cable)}`;
}
}
const rackEl = document.getElementById('rack');
rackEl.addEventListener('mouseover', onEnter);
rackEl.addEventListener('mouseout', onLeave);
rackEl.addEventListener('focusin', onEnter);
rackEl.addEventListener('focusout', onLeave);
rackEl.addEventListener('click', e => {
const el = portAt(e.target);
if (el) openPort(el);
});
rackEl.addEventListener('keydown', e => {
const el = portAt(e.target);
if (el && (e.key === 'Enter' || e.key === ' ')) {
e.preventDefault();
openPort(el);
}
});
function currentRack() {
return new URLSearchParams(location.search).get('rack') || '';
}
function currentFace() {
return new URLSearchParams(location.search).get('face') === 'rear' ? 'rear' : 'front';
}
function setView(changes) {
const q = new URLSearchParams(location.search);
Object.entries(changes).forEach(([k, v]) => (v ? q.set(k, v) : q.delete(k)));
const qs = q.toString();
history.replaceState(null, '', qs ? `?${qs}` : location.pathname);
_rack = null;
load();
}
document.getElementById('rack-tabs').addEventListener('click', e => {
const tab = e.target.closest('[data-rack]');
if (!tab) return;
const first = _rack && _rack.racks[0] && _rack.racks[0].name;
setView({ rack: tab.dataset.rack === first ? '' : tab.dataset.rack });
});
document.querySelector('.rack-face').addEventListener('click', e => {
const btn = e.target.closest('[data-face]');
if (btn) setView({ face: btn.dataset.face === 'rear' ? 'rear' : '' });
});
async function load() {
try {
const q = new URLSearchParams();
if (currentRack()) q.set('rack', currentRack());
if (currentFace() === 'rear') q.set('face', 'rear');
render(await lt.api.get(`/api/rack${q.toString() ? `?${q}` : ''}`));
} catch (err) {
if (_rack) return; // keep the last drawing on a failed refresh
document.getElementById('rack').innerHTML = `<div class="lt-empty-state lt-empty-state--sm">
<div class="lt-empty-state-title">Could not load the rack</div>
<div class="lt-empty-state-text">${esc(err.message || err)}</div></div>`;
}
}
readout(null);
load();
setInterval(() => { if (!document.hidden && !document.querySelector('#rack .rack-hl')) load(); }, 60000);
// ── Export (SVG / PNG) ──────────────────────────────────────────────────
// Rebuilds the drawing as one standalone SVG on a white page, for printing or planning.
// Faceplates and panels are copied from the page with their computed styles inlined,
// since the stylesheet doesn't travel with the file.
const SVG_NS = 'http://www.w3.org/2000/svg';
const STYLE_PROPS = ['fill', 'fill-opacity', 'stroke', 'stroke-width', 'stroke-opacity', 'stroke-dasharray',
'stroke-linecap', 'stroke-linejoin', 'opacity', 'font-size', 'font-family', 'font-weight', 'letter-spacing',
'text-anchor', 'dominant-baseline', 'display', 'visibility'];
function inlineStyles(src, dst) {
const cs = getComputedStyle(src);
dst.setAttribute('style', STYLE_PROPS.map(p => `${p}:${cs.getPropertyValue(p)}`).join(';'));
dst.removeAttribute('class');
for (let i = 0; i < src.children.length; i++) inlineStyles(src.children[i], dst.children[i]);
}
function svgEl(tag, attrs, text) {
const el = document.createElementNS(SVG_NS, tag);
Object.entries(attrs).forEach(([k, v]) => el.setAttribute(k, v));
if (text != null) el.textContent = text;
return el;
}
function buildExport() {
document.querySelectorAll('#rack .rack-hl').forEach(el => el.classList.remove('rack-hl'));
const W = 1100, gutter = 46, pad = 20, head = 44, unit = W / RATIO;
const rows = [...document.querySelectorAll('#rack .rack-row')];
const height = rows.reduce((h, r) => h + (r.dataset.gap ? 26 : parseInt(r.style.getPropertyValue('--n'), 10) * unit), 0);
const H = head + height + pad * 2;
const root = svgEl('svg', { xmlns: SVG_NS, width: W + gutter + pad * 2, height: H,
viewBox: `0 0 ${W + gutter + pad * 2} ${H}`, 'font-family': 'Helvetica, Arial, sans-serif' });
root.appendChild(svgEl('rect', { width: '100%', height: '100%', fill: '#ffffff' }));
const stamp = new Date().toLocaleString();
root.appendChild(svgEl('text', { x: pad, y: pad + 14, 'font-size': 18, 'font-weight': 700, fill: '#111' },
`${_rack.rack} · ${_rack.face}`));
root.appendChild(svgEl('text', { x: W + gutter + pad, y: pad + 14, 'font-size': 11, fill: '#666', 'text-anchor': 'end' },
`Gandalf · ${stamp}`));
let y = head + pad;
const x = pad + gutter;
rows.forEach(row => {
const n = parseInt(row.style.getPropertyValue('--n'), 10);
if (row.dataset.gap) {
const band = 26;
root.appendChild(svgEl('rect', { x, y: y + 2, width: W, height: band - 4, fill: '#f4f5f7', stroke: '#d5d9de',
'stroke-dasharray': '4 4' }));
root.appendChild(svgEl('text', { x: x + W / 2, y: y + band / 2 + 4, 'font-size': 11, fill: '#777',
'text-anchor': 'middle' }, row.textContent.trim()));
y += band;
return;
}
const h = n * unit;
[...row.querySelectorAll('.rack-u span')].forEach((s, i) => {
root.appendChild(svgEl('text', { x: x - 8, y: y + unit * i + unit / 2 + 4, 'font-size': 11, fill: '#777',
'text-anchor': 'end' }, s.textContent));
});
const art = row.querySelector('svg.fp-svg, svg.rack-svg');
const plate = row.querySelector('.rack-plate');
if (art) {
const clone = art.cloneNode(true);
inlineStyles(art, clone);
['x', 'y', 'width', 'height'].forEach((k, i) => clone.setAttribute(k, [x, y, W, h][i]));
clone.setAttribute('preserveAspectRatio', art.getAttribute('preserveAspectRatio') || 'xMidYMid meet');
clone.removeAttribute('style');
root.appendChild(clone);
} else if (plate) {
root.appendChild(svgEl('rect', { x, y: y + 1, width: W, height: h - 2, rx: 3, fill: '#e9ecef', stroke: '#9aa3ad' }));
const name = plate.querySelector('.rack-plate-name, .rack-shelf-label');
const things = [...plate.querySelectorAll('.rack-shelf-name')].map(t => t.textContent);
const sub = things.length ? things.join(' · ') : (plate.querySelector('.rack-plate-sub') || {}).textContent || '';
root.appendChild(svgEl('text', { x: x + 16, y: y + h / 2 + (sub ? -2 : 5), 'font-size': 15, 'font-weight': 700,
fill: '#111' }, name ? name.textContent : ''));
if (sub) root.appendChild(svgEl('text', { x: x + 16, y: y + h / 2 + 15, 'font-size': 11, fill: '#444' }, sub));
} else {
root.appendChild(svgEl('rect', { x, y: y + 1, width: W, height: h - 2, fill: 'none', stroke: '#d5d9de',
'stroke-dasharray': '4 4' }));
}
y += h;
});
return new XMLSerializer().serializeToString(root);
}
function download(blob, name) {
const a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = name;
document.body.appendChild(a);
a.click();
a.remove();
setTimeout(() => URL.revokeObjectURL(a.href), 10000);
}
async function exportRack(kind) {
if (!_rack || !_rack.items.length) {
lt.toast.error('Nothing in this rack to export yet');
return;
}
const svg = buildExport();
const base = `${_rack.rack.replace(/[^\w.-]+/g, '-')}-${_rack.face}`;
if (kind === 'svg') {
download(new Blob([svg], { type: 'image/svg+xml' }), `${base}.svg`);
return;
}
const img = new Image();
const url = URL.createObjectURL(new Blob([svg], { type: 'image/svg+xml' }));
try {
await new Promise((resolve, reject) => { img.onload = resolve; img.onerror = reject; img.src = url; });
const scale = 2;
const canvas = document.createElement('canvas');
canvas.width = img.width * scale;
canvas.height = img.height * scale;
const ctx = canvas.getContext('2d');
ctx.scale(scale, scale);
ctx.drawImage(img, 0, 0);
canvas.toBlob(blob => download(blob, `${base}.png`), 'image/png');
} catch (err) {
lt.toast.error('Could not render the PNG; try the SVG');
} finally {
URL.revokeObjectURL(url);
}
}
document.getElementById('rack-show-empty').addEventListener('change', e => {
try { localStorage.setItem('gandalf.rackShowEmpty', e.target.checked ? '1' : '0'); } catch (_) { /* private mode */ }
if (_rack) render(_rack);
});
document.querySelectorAll('[data-export]').forEach(btn => btn.addEventListener('click', () => exportRack(btn.dataset.export)));
// ── Rack settings (admins) ──────────────────────────────────────────────
function openRackForm(adding) {
const form = document.getElementById('rack-form');
form.reset();
const r = adding ? null : (_rack.racks.find(x => x.name === _rack.rack) || {});
form.id.value = r && r.id ? r.id : '';
// The default rack exists only in config until saved; its items follow the new name
form.previous.value = r && !r.id ? r.name : '';
form.name.value = r ? r.name : '';
form.units.value = r ? r.units : 42;
form.notes.value = r ? (r.notes || '') : '';
form.querySelector('[data-action="delete-rack"]').hidden = !(r && r.id);
document.getElementById('rack-modal-title').textContent = adding ? 'Add a rack' : 'Rack settings';
lt.modal.open('rack-modal');
form.name.focus();
}
async function saveRack(e) {
e.preventDefault();
const form = e.target;
const body = { name: form.name.value.trim(), units: form.units.value, notes: form.notes.value, previous: form.previous.value };
try {
if (form.id.value) await lt.api.put(`/api/cutsheet/racks/${encodeURIComponent(form.id.value)}`, body);
else await lt.api.post('/api/cutsheet/racks', body);
lt.modal.close('rack-modal');
lt.toast.success('Rack saved');
setView({ rack: body.name });
} catch (err) {
lt.toast.error(err.message || 'Save failed');
}
}
async function deleteRack() {
const form = document.getElementById('rack-form');
if (!form.id.value || !window.confirm(`Delete the rack ${form.name.value}?`)) return;
try {
await lt.api.delete(`/api/cutsheet/racks/${encodeURIComponent(form.id.value)}`);
lt.modal.close('rack-modal');
lt.toast.success('Rack deleted');
setView({ rack: '' });
} catch (err) {
lt.toast.error(err.message || 'Delete failed');
}
}
if (RACK_CAN_EDIT) {
document.querySelector('[data-action="rack-settings"]').addEventListener('click', () => _rack && openRackForm(false));
document.querySelector('[data-action="add-rack"]').addEventListener('click', () => _rack && openRackForm(true));
document.getElementById('rack-form').addEventListener('submit', saveRack);
document.querySelector('[data-action="delete-rack"]').addEventListener('click', deleteRack);
}