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public/crcp-grid.js
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/* crcp-grid.js — reusable Amazon-style faceted grid engine for the CRE fleet.
* Config-driven, theme-agnostic (inherits the host page's CSS vars via cg-grid.css).
* One page = one CrcpGrid.mount(opts) call. Mirrors the proven condos.html engine so
* every list page gets the SAME behavior: left-rail facets, per-field show/hide toggles,
* grid/list view toggle, density slider, live search, localStorage persistence.
*
* opts = {
* data: [row,...], // all rows (client-side faceting)
* fields: [{k,l,def,col,badge,money,num,date,calc,suf,pct}], // every data point (card rows + list cols)
* facets: [{k,l,type:'chip'|'range',calc,order,max}], // rail filters (auto-derived if omitted)
* mount: '#cgMain', // container for topbar + grid
* rail: '#cgRail', // container for the left rail
* title: row => ({name, sub}),// card/list title + subline
* search: row => 'text blob', // searchable string
* badgeHtml: row => '<span>...'|'',// optional status badge html (card + list)
* storageKey:'fha', // localStorage namespace
* cols: 3, // default density
* onRow: row => ({cls}), // optional per-row class hook (e.g. red flag)
* }
*/
(function (global) {
const esc = s => String(s == null ? '' : s).replace(/&/g, '&').replace(/</g, '<').replace(/"/g, '"');
const $ = (sel, root) => (root || document).querySelector(sel);
function fmt(v, f) {
if (v == null || v === '') return '—';
if (f.money) return '$' + (+v).toLocaleString() + (f.suf || '');
if (f.pct) return (+v).toFixed(2) + '%';
if (f.num) return (+v).toLocaleString() + (f.suf || '');
if (f.date) { try { return new Date(v).toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: 'numeric' }); } catch (e) { return '—'; } }
return esc(v) + (f.suf || '');
}
function CrcpGrid(opts) {
const O = opts;
const KEY = O.storageKey || 'cg';
const fields = O.fields;
const data = O.data || [];
const fval = (row, f) => f.calc ? f.calc(row) : row[f.k];
// ---- field visibility (persisted) ----
const VIS = (function () {
let s = {}; try { s = JSON.parse(localStorage.getItem(KEY + 'Fields') || '{}'); } catch (e) {}
const o = {}; fields.forEach(f => o[f.k] = (f.k in s) ? !!s[f.k] : !!f.def); return o;
})();
const saveVis = () => { try { localStorage.setItem(KEY + 'Fields', JSON.stringify(VIS)); } catch (e) {} };
// ---- auto-derive facets if not provided ----
let facets = O.facets;
if (!facets) {
facets = [];
fields.forEach(f => {
if (f.badge || f.k === 'title') return;
const vals = data.map(r => fval(r, f)).filter(v => v != null && v !== '');
if (!vals.length) return;
const numeric = f.money || f.num || f.pct || vals.every(v => typeof v === 'number' || /^\d+(\.\d+)?$/.test(v));
const uniq = new Set(vals.map(String));
if (!numeric && uniq.size <= 24) facets.push({ k: f.k, l: f.l, type: 'chip', calc: f.calc });
else if (numeric) facets.push({ k: f.k, l: f.l, type: 'range', calc: f.calc, money: f.money });
});
}
// ---- filter state ----
const F = { q: '', chips: {}, ranges: {} };
facets.forEach(fc => { if (fc.type === 'chip') F.chips[fc.k] = new Set(); else F.ranges[fc.k] = { min: null, max: null }; });
const gv = (row, fc) => fc.calc ? fc.calc(row) : row[fc.k];
function pass(row) {
for (const fc of facets) {
if (fc.type === 'chip') { const set = F.chips[fc.k]; if (set.size && !set.has(String(gv(row, fc)))) return false; }
else { const r = F.ranges[fc.k], v = gv(row, fc);
if (r.min != null && !(+v >= r.min)) return false;
if (r.max != null && !(+v <= r.max)) return false; }
}
if (F.q) { const blob = (O.search ? O.search(row) : fields.map(f => fval(row, f)).join(' ')).toLowerCase(); if (!blob.includes(F.q)) return false; }
return true;
}
// ---- rail ----
function buildRail() {
const rail = $(O.rail);
let html = '';
facets.forEach(fc => {
if (fc.type === 'chip') {
const counts = {};
data.forEach(r => { const v = gv(r, fc); if (v != null && v !== '') counts[v] = (counts[v] || 0) + 1; });
const ent = Object.entries(counts).sort((a, b) => b[1] - a[1]).slice(0, fc.max || 20);
if (!ent.length) return;
html += `<div class="cg-sec collapsed"><h4>${esc(fc.l)}</h4><div class="cg-chips" data-facet="${esc(fc.k)}">` +
ent.map(([k, c]) => `<span class="cg-chip" data-v="${esc(k)}">${esc(k)}<span class="cg-ct">${c}</span></span>`).join('') + `</div></div>`;
} else {
html += `<div class="cg-sec collapsed"><h4>${esc(fc.l)}</h4><div class="cg-row2" data-facet="${esc(fc.k)}">` +
`<div class="cg-fld"><label>Min</label><input type="number" class="cg-min" placeholder="any"></div>` +
`<div class="cg-fld"><label>Max</label><input type="number" class="cg-max" placeholder="any"></div></div></div>`;
}
});
html += `<div class="cg-sec"><h4>Fields — show / hide</h4><div class="cg-ftogs">` +
fields.map(f => `<label class="cg-ftog"><input type="checkbox" data-fk="${esc(f.k)}" ${VIS[f.k] ? 'checked' : ''}><span>${esc(f.l)}</span>${f.col ? '<span class="cg-ct" title="List column">▤</span>' : ''}</label>`).join('') +
`</div><div class="cg-mini"><button data-all="1">All</button><button data-none="1">None</button><button data-def="1">Default</button></div></div>`;
rail.innerHTML = html;
// wire facets
rail.querySelectorAll('.cg-chips').forEach(box => box.addEventListener('click', e => {
const c = e.target.closest('.cg-chip'); if (!c) return;
const set = F.chips[box.dataset.facet]; const v = c.dataset.v;
set.has(v) ? set.delete(v) : set.add(v); c.classList.toggle('active'); render();
}));
rail.querySelectorAll('.cg-row2').forEach(box => {
const k = box.dataset.facet;
box.querySelector('.cg-min').addEventListener('input', e => { F.ranges[k].min = e.target.value ? +e.target.value : null; render(); });
box.querySelector('.cg-max').addEventListener('input', e => { F.ranges[k].max = e.target.value ? +e.target.value : null; render(); });
});
// field toggles
rail.querySelector('.cg-ftogs').addEventListener('change', e => { const cb = e.target.closest('input[data-fk]'); if (!cb) return; VIS[cb.dataset.fk] = cb.checked; saveVis(); render(); });
const mini = rail.querySelector('.cg-mini');
mini.addEventListener('click', e => {
const b = e.target.closest('button'); if (!b) return;
if (b.dataset.all) fields.forEach(f => VIS[f.k] = true);
else if (b.dataset.none) fields.forEach(f => VIS[f.k] = false);
else if (b.dataset.def) fields.forEach(f => VIS[f.k] = !!f.def);
saveVis(); buildRail(); render();
});
// collapsible headers
rail.querySelectorAll('.cg-sec > h4').forEach(h => h.addEventListener('click', () => h.parentElement.classList.toggle('collapsed')));
}
// ---- renderers ----
function cards(rows) {
const vis = fields.filter(f => VIS[f.k] && !f.badge && f.k !== 'title');
return rows.map(r => {
const t = O.title ? O.title(r) : { name: r.name || '', sub: '' };
const rc = O.onRow ? (O.onRow(r).cls || '') : '';
const nm = t.href ? `<a href="${esc(t.href)}" target="_blank" rel="noopener noreferrer" style="color:inherit">${esc(t.name)}</a>` : esc(t.name);
return `<div class="cg-card ${rc}">` +
`<div class="cg-name">${nm}</div>${t.sub ? `<div class="cg-sub">${esc(t.sub)}</div>` : ''}` +
(O.badgeHtml ? O.badgeHtml(r) : '') +
vis.map(f => `<div class="cg-r"><span class="cg-k">${esc(f.l)}</span><span>${fmt(fval(r, f), f)}</span></div>`).join('') +
`</div>`;
}).join('');
}
function list(rows) {
const cols = fields.filter(f => f.col && VIS[f.k] && !f.badge);
const head = `<th class="cg-stick">${esc((O.titleCol || 'Name'))}</th>` + cols.map(f => `<th>${esc(f.l)}</th>`).join('');
const body = rows.map(r => {
const t = O.title ? O.title(r) : { name: '', sub: '' };
const rc = O.onRow ? (O.onRow(r).cls || '') : '';
const nm = t.href ? `<a href="${esc(t.href)}" target="_blank" rel="noopener noreferrer" style="color:inherit">${esc(t.name)}</a>` : esc(t.name);
return `<tr class="${rc}"><td class="cg-stick"><span class="cg-la">${nm}</span>${t.sub ? `<div class="cg-lc">${esc(t.sub)}</div>` : ''}</td>` +
cols.map(f => `<td>${fmt(fval(r, f), f)}</td>`).join('') + `</tr>`;
}).join('');
return `<div class="cg-listwrap"><table class="cg-tbl"><thead><tr>${head}</tr></thead><tbody>${body}</tbody></table></div>`;
}
let VIEW = localStorage.getItem(KEY + 'View') || O.view || 'grid';
const CAP = O.cap || 1500; // DOM render cap for perf; count still reflects the full match set
function render() {
const rows = data.filter(pass);
const shown = rows.length > CAP ? rows.slice(0, CAP) : rows;
const g = $(O.mount + ' .cg-grid');
if (!rows.length) { g.className = 'cg-grid'; g.innerHTML = '<div class="cg-empty">no matches for these filters.</div>'; }
else if (VIEW === 'list') { g.className = 'cg-grid cg-listhost'; g.innerHTML = list(shown); }
else { g.className = 'cg-grid'; g.innerHTML = cards(shown); }
const cnt = $(O.mount + ' .cg-count');
if (cnt) cnt.innerHTML = `<b>${rows.length.toLocaleString()}</b> of ${data.length.toLocaleString()}` + (rows.length > CAP ? ` <span style="opacity:.7">(first ${CAP.toLocaleString()} shown)</span>` : '');
}
// ---- topbar ----
function buildTop() {
const m = $(O.mount);
m.insertAdjacentHTML('afterbegin',
`<div class="cg-top">` +
`<input type="text" class="cg-q" placeholder="search…">` +
`<span class="cg-seg"><button data-view="grid" class="${VIEW === 'grid' ? 'active' : ''}">▦ Grid</button><button data-view="list" class="${VIEW === 'list' ? 'active' : ''}">☰ List</button></span>` +
`<label class="cg-dens">Density <input type="range" class="cg-cols" min="1" max="12" step="1" value="${O.cols || 3}"></label>` +
`<span class="cg-count"></span></div><div class="cg-grid"></div>`);
const q = m.querySelector('.cg-q');
q.addEventListener('input', () => { clearTimeout(q._t); q._t = setTimeout(() => { F.q = q.value.trim().toLowerCase(); render(); }, 160); });
m.querySelector('.cg-seg').addEventListener('click', e => { const b = e.target.closest('button[data-view]'); if (!b) return; VIEW = b.dataset.view; localStorage.setItem(KEY + 'View', VIEW); m.querySelectorAll('.cg-seg button').forEach(x => x.classList.toggle('active', x.dataset.view === VIEW)); render(); });
const cols = m.querySelector('.cg-cols');
const setCols = v => { m.style.setProperty('--cg-cols', v); localStorage.setItem(KEY + 'Cols', v); };
cols.addEventListener('input', e => setCols(e.target.value));
const sc = localStorage.getItem(KEY + 'Cols'); if (sc) { cols.value = sc; }
setCols(cols.value);
}
buildTop(); buildRail(); render();
return { render, setData(d) { O.data.length = 0; d.forEach(x => O.data.push(x)); buildRail(); render(); } };
}
global.CrcpGrid = { mount: opts => new CrcpGrid(opts) };
})(window);