gitcortex 0.2.2

Git-aware code knowledge graph — incremental AST indexing on every commit, MCP server for AI assistants
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>GitCortex — Knowledge Graph</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.28.1/cytoscape.min.js"></script>
<style>
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --bg:       #1e1e2e; --bg1:     #181825; --bg2:     #11111b;
  --surface0: #313244; --surface1:#45475a; --overlay0:#6c7086;
  --text:     #cdd6f4; --subtext: #a6adc8; --subtext0:#bac2de;
  --blue:     #89b4fa; --sky:     #74c7ec; --sapphire:#89dceb;
  --teal:     #94e2d5; --green:   #a6e3a1; --yellow:  #f9e2af;
  --peach:    #fab387; --flamingo:#eba0ac; --pink:    #f5c2e7;
  --mauve:    #cba6f7; --red:     #f38ba8; --lavender:#b4befe;
}

html, body { width:100%; height:100%; background:var(--bg); color:var(--text);
  font-family:'JetBrains Mono',Menlo,Consolas,monospace; overflow:hidden; }

#cy { position:fixed; inset:0; }

/* ── Stats ──────────────────────────────────────────────────────────────── */
#stats {
  position:fixed; top:14px; left:14px; z-index:10;
  background:rgba(24,24,37,.93); border:1px solid var(--surface0);
  border-radius:8px; padding:10px 14px; font-size:11px; color:var(--overlay0);
  line-height:1.8; pointer-events:none;
}
#stats b { color:var(--text); }

/* ── Search bar ──────────────────────────────────────────────────────────── */
#search-wrap {
  position:fixed; top:14px; left:50%; transform:translateX(-50%); z-index:10;
  background:rgba(24,24,37,.93); border:1px solid var(--surface0); border-radius:8px;
  display:flex; align-items:center; gap:8px; padding:8px 14px; min-width:280px;
}
#search-input {
  background:transparent; border:none; outline:none; color:var(--text);
  font-family:inherit; font-size:12px; width:220px;
}
#search-input::placeholder { color:var(--surface1); }
#search-clear { background:none; border:none; color:var(--overlay0); cursor:pointer;
  font-size:14px; display:none; font-family:inherit; }
#search-count { color:var(--overlay0); font-size:10px; white-space:nowrap; }
#search-nav { display:none; gap:4px; }
#search-nav button {
  background:var(--surface0); border:1px solid var(--surface1); color:var(--text);
  border-radius:4px; padding:1px 7px; font-size:11px; cursor:pointer; font-family:inherit;
}

/* ── Layout switcher ─────────────────────────────────────────────────────── */
#layout-switcher {
  position:fixed; top:14px; right:14px; z-index:10;
  display:flex; gap:6px; align-items:center;
}
.layout-btn {
  background:rgba(24,24,37,.93); border:1px solid var(--surface0); color:var(--subtext);
  border-radius:6px; padding:5px 12px; font-size:11px; cursor:pointer; font-family:inherit;
  transition:background .15s, color .15s;
}
.layout-btn.active { background:var(--mauve); color:var(--bg); border-color:var(--mauve); }
.layout-btn:hover:not(.active) { background:var(--surface0); color:var(--text); }

/* ── Filter rail ─────────────────────────────────────────────────────────── */
#filter-rail {
  position:fixed; top:60px; left:14px; z-index:10; width:196px;
  background:rgba(24,24,37,.97); border:1px solid var(--surface0); border-radius:8px;
  padding:12px; display:flex; flex-direction:column; gap:10px; max-height:calc(100vh - 80px);
  overflow-y:auto;
}
#filter-rail::-webkit-scrollbar { width:4px; }
#filter-rail::-webkit-scrollbar-thumb { background:var(--surface1); border-radius:2px; }
.filter-section-title {
  font-size:9px; text-transform:uppercase; letter-spacing:.08em; color:var(--overlay0);
  margin-bottom:4px;
}
.filter-toggle {
  display:flex; align-items:center; gap:6px; margin:2px 0; cursor:pointer;
  font-size:10px; color:var(--subtext); user-select:none;
}
.filter-toggle:hover { color:var(--text); }
.dot { width:8px; height:8px; border-radius:50%; flex-shrink:0; }
.dot-sq { width:8px; height:8px; border-radius:1px; flex-shrink:0; }
.filter-toggle.off { opacity:.35; }
.filter-sep { height:1px; background:var(--surface0); }
#vis-filter { display:flex; gap:4px; flex-wrap:wrap; margin-top:2px; }
.vis-btn {
  padding:2px 8px; border-radius:4px; font-size:9px; cursor:pointer; font-family:inherit;
  background:var(--surface0); color:var(--subtext); border:1px solid var(--surface1);
  transition:background .12s, color .12s;
}
.vis-btn.active { background:var(--mauve); color:var(--bg); border-color:var(--mauve); }
.vis-btn:hover:not(.active) { background:var(--surface1); color:var(--text); }
#file-search-input {
  width:100%; background:var(--surface0); border:1px solid var(--surface1); color:var(--text);
  border-radius:4px; padding:4px 8px; font-size:10px; font-family:inherit; outline:none;
  margin-bottom:4px;
}
#file-list { max-height:100px; overflow-y:auto; display:flex; flex-direction:column; gap:1px; }
.file-toggle {
  font-size:9px; color:var(--subtext); padding:2px 4px; border-radius:3px; cursor:pointer;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; user-select:none;
}
.file-toggle:hover { background:var(--surface0); color:var(--text); }
.file-toggle.off { opacity:.3; }
#cluster-btns { display:flex; gap:3px; flex-wrap:wrap; margin-top:3px; }
.cluster-btn {
  padding:2px 7px; border-radius:4px; font-size:9px; cursor:pointer; font-family:inherit;
  border:1px solid var(--surface1); color:var(--subtext); transition:all .12s;
  background:var(--surface0);
}
.cluster-btn.active { color:var(--bg); border-color:transparent; }

/* ── Inspector ───────────────────────────────────────────────────────────── */
#inspector {
  position:fixed; top:60px; right:14px; z-index:10; width:270px;
  background:rgba(24,24,37,.97); border:1px solid var(--surface0); border-radius:8px;
  padding:14px; display:none; max-height:calc(100vh - 160px); overflow-y:auto;
}
#inspector::-webkit-scrollbar { width:4px; }
#inspector::-webkit-scrollbar-thumb { background:var(--surface1); border-radius:2px; }
.insp-badge {
  display:inline-block; padding:2px 9px; border-radius:99px;
  font-size:9px; font-weight:700; margin-bottom:10px; color:var(--bg2);
}
.insp-field { margin:6px 0; }
.insp-label { color:var(--overlay0); font-size:9px; text-transform:uppercase; letter-spacing:.06em; }
.insp-val { color:var(--text); font-size:11px; word-break:break-all; }
.insp-tags { display:flex; gap:4px; flex-wrap:wrap; margin-top:2px; }
.tag {
  padding:1px 7px; border-radius:99px; font-size:9px;
  background:var(--surface0); color:var(--subtext); border:1px solid var(--surface1);
}
.tag.async  { background:#89b4fa22; color:var(--blue);    border-color:#89b4fa44; }
.tag.unsafe { background:#f38ba822; color:var(--red);     border-color:#f38ba844; }
.tag.pub    { background:#a6e3a122; color:var(--green);   border-color:#a6e3a144; }
.tag.pubcrate { background:#f9e2af22; color:var(--yellow); border-color:#f9e2af44; }
.insp-section { margin-top:10px; border-top:1px solid var(--surface0); padding-top:8px; }
.insp-section-title { font-size:9px; text-transform:uppercase; color:var(--overlay0);
  letter-spacing:.06em; margin-bottom:5px; }
.insp-list { display:flex; flex-direction:column; gap:2px; }
.insp-link {
  font-size:10px; color:var(--blue); cursor:pointer; padding:1px 4px; border-radius:3px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.insp-link:hover { background:var(--surface0); }
.insp-empty { font-size:10px; color:var(--overlay0); font-style:italic; }
.editor-link {
  font-size:9px; padding:2px 7px; border-radius:4px; text-decoration:none;
  background:var(--surface0); color:var(--subtext); border:1px solid var(--surface1);
}
.editor-link:hover { background:var(--surface1); color:var(--text); }

/* trace-path */
#trace-section { margin-top:10px; border-top:1px solid var(--surface0); padding-top:8px; }
.trace-row { display:flex; gap:4px; margin:3px 0; }
.trace-input {
  flex:1; background:var(--surface0); border:1px solid var(--surface1); color:var(--text);
  border-radius:4px; padding:3px 6px; font-size:10px; font-family:inherit; outline:none;
}
.trace-btn {
  padding:3px 10px; background:var(--mauve); border:none; color:var(--bg);
  border-radius:4px; font-size:10px; cursor:pointer; font-family:inherit; font-weight:700;
}
.trace-btn:hover { opacity:.85; }
#trace-result { font-size:10px; color:var(--subtext); margin-top:4px; }
#trace-clear {
  font-size:9px; color:var(--red); background:none; border:none; cursor:pointer;
  font-family:inherit; padding:0; display:none; margin-top:2px;
}

/* ── Edge legend — bottom RIGHT ─────────────────────────────────────────── */
#edge-legend {
  position:fixed; bottom:14px; right:14px; z-index:10;
  background:rgba(24,24,37,.93); border:1px solid var(--surface0); border-radius:8px;
  padding:10px 14px; font-size:10px;
}
.legend-title { color:var(--overlay0); font-size:9px; text-transform:uppercase;
  letter-spacing:.06em; margin-bottom:5px; }
.legend-row { display:flex; align-items:center; gap:6px; margin:2px 0; }
.edge-line { width:18px; height:2px; flex-shrink:0; border-radius:1px; }
</style>
</head>
<body>

<div id="stats"><b id="s-nodes">—</b> nodes · <b id="s-edges">—</b> edges · <b id="s-clusters">—</b> clusters</div>

<div id="search-wrap">
  <span style="color:var(--overlay0);font-size:12px">⌕</span>
  <input id="search-input" type="text" placeholder="Search symbols…" autocomplete="off" spellcheck="false">
  <span id="search-count"></span>
  <span id="search-nav">
    <button id="search-prev">↑</button>
    <button id="search-next">↓</button>
  </span>
  <button id="search-clear">✕</button>
</div>

<div id="layout-switcher">
  <button class="layout-btn active" data-layout="force">Force</button>
  <button class="layout-btn" data-layout="concentric">Concentric</button>
  <button class="layout-btn" data-layout="breadthfirst">Tree</button>
</div>

<div id="filter-rail">
  <div>
    <div class="filter-section-title">Node Kind</div>
    <div id="kind-filters"></div>
  </div>
  <div class="filter-sep"></div>
  <div>
    <div class="filter-section-title">Visibility</div>
    <div id="vis-filter">
      <button class="vis-btn active" data-vis="pub">pub</button>
      <button class="vis-btn active" data-vis="pub(crate)">crate</button>
      <button class="vis-btn active" data-vis="private">priv</button>
    </div>
  </div>
  <div class="filter-sep"></div>
  <div>
    <div class="filter-section-title">Flags</div>
    <div id="flag-filters">
      <label class="filter-toggle" id="flag-async"><span class="dot" style="background:var(--blue)"></span>async only</label>
      <label class="filter-toggle" id="flag-unsafe"><span class="dot" style="background:var(--red)"></span>unsafe only</label>
    </div>
  </div>
  <div class="filter-sep"></div>
  <div>
    <div class="filter-section-title">Cluster</div>
    <div style="display:flex;gap:4px;flex-wrap:wrap;margin-top:2px;">
      <button class="cluster-btn active" id="cluster-all">All</button>
    </div>
    <div id="cluster-btns"></div>
  </div>
  <div class="filter-sep"></div>
  <div>
    <div class="filter-section-title">Files</div>
    <input id="file-search-input" type="text" placeholder="Filter files…" spellcheck="false">
    <div id="file-list"></div>
  </div>
</div>

<div id="inspector">
  <span class="insp-badge" id="insp-badge"></span>
  <div class="insp-field">
    <div class="insp-label">Name</div>
    <div class="insp-val" id="insp-name"></div>
  </div>
  <div class="insp-field">
    <div class="insp-label">Qualified</div>
    <div class="insp-val" id="insp-qualified"></div>
  </div>
  <div class="insp-field">
    <div class="insp-label">File : Line</div>
    <div class="insp-val" id="insp-file"></div>
    <div style="display:flex;gap:6px;margin-top:3px;" id="editor-links"></div>
  </div>
  <div class="insp-field">
    <div class="insp-label">LOC</div>
    <div class="insp-val" id="insp-loc"></div>
  </div>
  <div class="insp-field">
    <div class="insp-label">Flags</div>
    <div class="insp-tags" id="insp-tags"></div>
  </div>

  <div class="insp-section">
    <div class="insp-section-title">Callers (<span id="insp-callers-count">0</span>)</div>
    <div class="insp-list" id="insp-callers"></div>
  </div>
  <div class="insp-section">
    <div class="insp-section-title">Callees (<span id="insp-callees-count">0</span>)</div>
    <div class="insp-list" id="insp-callees"></div>
  </div>
  <div class="insp-section">
    <div class="insp-section-title">Uses / Implements (<span id="insp-deps-count">0</span>)</div>
    <div class="insp-list" id="insp-deps"></div>
  </div>

  <div id="trace-section">
    <div class="insp-section-title" style="margin-bottom:6px">Trace Path to…</div>
    <div class="trace-row">
      <input id="trace-target" class="trace-input" type="text" placeholder="target symbol name…" autocomplete="off">
      <button class="trace-btn" id="trace-run">→</button>
    </div>
    <div id="trace-result"></div>
    <button id="trace-clear">Clear path</button>
  </div>
</div>

<div id="edge-legend">
  <div class="legend-title">Edge Kind</div>
  <div id="legend-rows"></div>
</div>

<div id="cy"></div>

<script>
// ── Palette — keys MUST match NodeKind::to_string() (lowercase snake_case) ──
const KIND_COLOR = {
  'function':    '#89b4fa',   // blue
  'method':      '#74c7ec',   // sky
  'struct':      '#a6e3a1',   // green
  'enum':        '#94e2d5',   // teal
  'trait':       '#fab387',   // peach
  'interface':   '#89dceb',   // sapphire
  'module':      '#cba6f7',   // mauve
  'type_alias':  '#f38ba8',   // red
  'constant':    '#f9e2af',   // yellow
  'macro':       '#f5c2e7',   // pink
  'file':        '#6c7086',   // overlay0
  'folder':      '#45475a',   // surface1
  'property':    '#b4befe',   // lavender
  'annotation':  '#eba0ac',   // flamingo
  'enum_member': '#a8d8a8',   // soft green
};

// Edge kind keys match EdgeKind::to_string() (lowercase)
const EDGE_COLOR = {
  'calls':      '#89b4fa',   // blue
  'implements': '#eba0ac',   // flamingo
  'inherits':   '#fab387',   // peach
  'uses':       '#cba6f7',   // mauve
  'imports':    '#6c7086',   // overlay0 (muted)
  'contains':   '#45475a',   // surface1 (very muted)
  'throws':     '#f38ba8',   // red
  'annotated':  '#89dceb',   // sapphire
};

// Cluster accent palette for button backgrounds
const CLUSTER_ACCENT = [
  '#89b4fa','#a6e3a1','#fab387','#cba6f7','#94e2d5',
  '#f9e2af','#eba0ac','#89dceb','#f38ba8','#74c7ec',
  '#f5c2e7','#b4befe','#a8d8a8','#cdd6f4','#45475a','#6c7086',
];

// ── Community detection (label propagation) ────────────────────────────────
function detectCommunities(nodes, edges) {
  const label = {};
  nodes.forEach(n => { label[n.id] = n.id; });
  const adj = {};
  nodes.forEach(n => { adj[n.id] = []; });
  edges.forEach(e => {
    if (adj[e.src]) adj[e.src].push(e.dst);
    if (adj[e.dst]) adj[e.dst].push(e.src);
  });
  for (let iter = 0; iter < 30; iter++) {
    let changed = false;
    const shuffled = nodes.slice().sort(() => Math.random() - 0.5);
    for (const n of shuffled) {
      const nbrs = adj[n.id];
      if (!nbrs.length) continue;
      const counts = {};
      nbrs.forEach(nb => { const l = label[nb]; counts[l] = (counts[l] || 0) + 1; });
      const best = Object.entries(counts).sort((a,b) => b[1]-a[1])[0][0];
      if (best !== label[n.id]) { label[n.id] = best; changed = true; }
    }
    if (!changed) break;
  }
  const ids = [...new Set(Object.values(label))];
  const idx = {};
  ids.forEach((id, i) => { idx[id] = i; });
  const out = {};
  nodes.forEach(n => { out[n.id] = idx[label[n.id]]; });
  return out;
}

// ── Cluster names derived from dominant file segment ───────────────────────
function computeClusterNames(nodes, communityMap) {
  const SKIP = new Set(['src','lib','main','mod','index','test','tests','__init__','util','utils','common']);
  const EXT  = /\.(rs|py|ts|js|tsx|jsx|go|java|kt|cpp|cc|h)$/;
  const segCounts = {};
  nodes.forEach(n => {
    const c = communityMap[n.id];
    if (!(c in segCounts)) segCounts[c] = {};
    const parts = (n.file || '').replace(/\\/g, '/').split('/').filter(Boolean);
    parts.forEach((seg, i) => {
      const s = seg.replace(EXT, '');
      if (SKIP.has(s) || s.length < 2) return;
      // Weight parent dirs less than the immediate containing dir
      const w = (i === parts.length - 2) ? 3 : (i === parts.length - 1) ? 1 : 2;
      segCounts[c][s] = (segCounts[c][s] || 0) + w;
    });
  });
  const names = {};
  Object.keys(segCounts).forEach(c => {
    const sorted = Object.entries(segCounts[c]).sort((a,b) => b[1]-a[1]);
    names[c] = sorted.length ? sorted[0][0] : `C${parseInt(c)+1}`;
  });
  return names;
}

// ── Main ───────────────────────────────────────────────────────────────────
let cy, allData, communityMap, clusterNames;
let searchMatches = [], searchIdx = 0;
let tracedEdges = null;
const activeKinds     = new Set();
const activeEdgeKinds = new Set();
const activeVis       = new Set(['pub','pub(crate)','private']);
const hiddenFiles     = new Set();
let flagFilterAsync   = false;
let flagFilterUnsafe  = false;
let activeCluster     = null;

fetch('/data')
  .then(r => r.json())
  .then(data => {
    allData = data;
    const { nodes, edges } = data;
    communityMap = detectCommunities(nodes, edges);
    clusterNames = computeClusterNames(nodes, communityMap);
    const numClusters = new Set(Object.values(communityMap)).size;

    nodes.forEach(n => activeKinds.add(n.kind));
    edges.forEach(e => activeEdgeKinds.add(e.kind));

    buildFilterRail(nodes, edges, numClusters);
    buildEdgeLegend();
    initCytoscape(nodes, edges);

    document.getElementById('s-nodes').textContent    = nodes.length;
    document.getElementById('s-edges').textContent    = edges.length;
    document.getElementById('s-clusters').textContent = numClusters;
  });

// ── Cytoscape ─────────────────────────────────────────────────────────────
function buildElements(nodes, edges) {
  const els = [];
  const nodeSet = new Set(nodes.map(n => n.id));

  nodes.forEach(n => {
    const loc = n.loc || 0;
    // Size: 10–40px, sqrt-scaled by LOC
    const size = Math.max(10, Math.min(40, 10 + Math.sqrt(loc) * 2.4));
    const cluster = communityMap[n.id] ?? 0;
    const color   = KIND_COLOR[n.kind] || '#a6adc8';
    els.push({ group:'nodes', data:{
      id: n.id, label: n.name, kind: n.kind, file: n.file,
      qualified_name: n.qualified_name || n.name,
      start_line: n.start_line || 1, end_line: n.end_line || 1,
      loc, vis: n.visibility || 'private',
      is_async: n.is_async || false, is_unsafe: n.is_unsafe || false,
      cluster, color, size,
    }});
  });

  edges.forEach(e => {
    if (!nodeSet.has(e.src) || !nodeSet.has(e.dst)) return;
    els.push({ group:'edges', data:{
      id: `${e.src}→${e.dst}:${e.kind}`,
      source: e.src, target: e.dst, kind: e.kind,
      color: EDGE_COLOR[e.kind] || '#6c7086',
    }});
  });

  return els;
}

function initCytoscape(nodes, edges) {
  cy = cytoscape({
    container: document.getElementById('cy'),
    elements: buildElements(nodes, edges),
    style: cyStyle(),
    layout: forceLayout(),
    wheelSensitivity: 0.25,
    minZoom: 0.02, maxZoom: 10,
    pixelRatio: 'auto',
  });

  cy.on('tap', 'node', e => openInspector(e.target));
  cy.on('tap', e => { if (e.target === cy) closeInspector(); });
}

function cyStyle() {
  return [
    {
      selector: 'node',
      style: {
        'width':  'data(size)',
        'height': 'data(size)',
        // Solid fill with the kind color — background-opacity 0.88 for vivid
        'background-color':   'data(color)',
        'background-opacity': 0.88,
        'border-width': 1.5,
        'border-color': 'data(color)',
        'border-opacity': 1,
        // Label — hidden until zoomed in enough
        'label': 'data(label)',
        'color': '#cdd6f4',
        'font-size': 8,
        'font-family': 'JetBrains Mono, Menlo, monospace',
        'text-valign': 'bottom',
        'text-halign': 'center',
        'text-margin-y': 3,
        'text-background-color': '#1e1e2e',
        'text-background-opacity': 0.75,
        'text-background-padding': '2px',
        'text-max-width': '90px',
        'text-overflow-wrap': 'ellipsis',
        // Hide labels when zoomed out (shows when node appears >= 8px on screen)
        'min-zoomed-font-size': 8,
      }
    },
    {
      selector: 'node:selected',
      style: {
        'border-width': 3,
        'border-color': '#cdd6f4',
        'background-opacity': 1,
      }
    },
    {
      selector: 'node.hover',
      style: {
        'background-opacity': 1,
        'border-width': 2,
        'border-color': '#cdd6f4',
      }
    },
    {
      selector: 'edge',
      style: {
        'width': 0.8,
        'line-color': 'data(color)',
        'opacity': 0.35,
        'curve-style': 'bezier',
        'target-arrow-color': 'data(color)',
        'target-arrow-shape': 'triangle',
        'arrow-scale': 0.5,
      }
    },
    { selector: 'edge:selected', style: { 'opacity': 1, 'width': 2 } },
    { selector: '.dimmed',  style: { 'opacity': 0.06 } },
    { selector: '.highlighted', style: { 'opacity': 1, 'z-index': 9999 } },
    { selector: '.path-node', style: { 'border-width': 3, 'border-color': '#cdd6f4', 'background-opacity': 1, 'z-index': 9999 } },
    { selector: '.path-edge', style: { 'opacity': 1, 'width': 2.5, 'z-index': 9998 } },
  ];
}

function forceLayout() {
  return {
    name: 'cose',
    animate: true,
    animationDuration: 1200,
    animationEasing: 'ease-in-out-cubic',
    fit: true,
    padding: 80,
    randomize: true,
    // HIGH repulsion + LOW gravity = wide spread
    nodeRepulsion: () => 450000,
    nodeOverlap: 30,
    idealEdgeLength: () => 160,
    edgeElasticity: () => 40,
    nestingFactor: 1.2,
    gravity: 5,
    numIter: 2500,
    initialTemp: 300,
    coolingFactor: 0.97,
    minTemp: 1.0,
    componentSpacing: 80,
  };
}

function runLayout(name) {
  const opts = {
    force: forceLayout(),
    concentric: {
      name: 'concentric',
      animate: true, fit: true, padding: 60,
      animationDuration: 800,
      concentric: n => n.degree(),
      levelWidth: () => 4,
      minNodeSpacing: 30,
    },
    breadthfirst: {
      name: 'breadthfirst',
      animate: true, fit: true, padding: 60,
      animationDuration: 800,
      directed: true,
      spacingFactor: 1.4,
      grid: false,
    },
  };
  (cy.layout(opts[name] || opts.force)).run();
}

// ── Filter rail ────────────────────────────────────────────────────────────
function buildFilterRail(nodes, edges, numClusters) {
  // Node kind toggles
  const kindDiv = document.getElementById('kind-filters');
  [...activeKinds].sort().forEach(k => {
    const el = document.createElement('label');
    el.className = 'filter-toggle';
    el.dataset.kind = k;
    const color = KIND_COLOR[k] || '#a6adc8';
    el.innerHTML = `<span class="dot" style="background:${color}"></span>${k}`;
    el.addEventListener('click', () => toggleKind(k, el));
    kindDiv.appendChild(el);
  });

  // Visibility
  document.querySelectorAll('.vis-btn').forEach(btn => {
    btn.addEventListener('click', () => {
      const v = btn.dataset.vis;
      if (activeVis.has(v)) activeVis.delete(v); else activeVis.add(v);
      btn.classList.toggle('active', activeVis.has(v));
      applyFilters();
    });
  });

  // Flag toggles
  document.getElementById('flag-async').addEventListener('click', () => {
    flagFilterAsync = !flagFilterAsync;
    document.getElementById('flag-async').classList.toggle('off', flagFilterAsync);
    applyFilters();
  });
  document.getElementById('flag-unsafe').addEventListener('click', () => {
    flagFilterUnsafe = !flagFilterUnsafe;
    document.getElementById('flag-unsafe').classList.toggle('off', flagFilterUnsafe);
    applyFilters();
  });

  // Cluster filter — named buttons
  const clusterBtns = document.getElementById('cluster-btns');
  for (let i = 0; i < Math.min(numClusters, 16); i++) {
    const btn = document.createElement('button');
    btn.className = 'cluster-btn';
    const name = clusterNames[i] || `C${i + 1}`;
    btn.textContent = name;
    btn.title = `Cluster ${i + 1}`;
    btn.dataset.cluster = i;
    const accent = CLUSTER_ACCENT[i % CLUSTER_ACCENT.length];
    btn.dataset.accent = accent;
    btn.addEventListener('click', () => setClusterFilter(i, btn, accent));
    clusterBtns.appendChild(btn);
  }
  document.getElementById('cluster-all').addEventListener('click', () => {
    activeCluster = null;
    document.getElementById('cluster-all').classList.add('active');
    document.getElementById('cluster-all').style.background = 'var(--mauve)';
    document.getElementById('cluster-all').style.color = 'var(--bg)';
    document.querySelectorAll('#cluster-btns .cluster-btn').forEach(b => {
      b.classList.remove('active');
      b.style.background = '';
      b.style.color = '';
    });
    applyFilters();
  });
  // Style the "All" button
  const allBtn = document.getElementById('cluster-all');
  allBtn.style.background = 'var(--mauve)';
  allBtn.style.color = 'var(--bg2)';

  // File list
  const files = [...new Set(nodes.map(n => n.file))].sort();
  const fileList = document.getElementById('file-list');
  files.forEach(f => {
    const el = document.createElement('div');
    el.className = 'file-toggle';
    el.textContent = f.replace(/^.*\/([^/]+\/[^/]+)$/, '…/$1');
    el.title = f;
    el.dataset.file = f;
    el.addEventListener('click', () => toggleFile(f, el));
    fileList.appendChild(el);
  });
  document.getElementById('file-search-input').addEventListener('input', e => {
    const q = e.target.value.toLowerCase();
    document.querySelectorAll('.file-toggle').forEach(el => {
      el.style.display = el.dataset.file.toLowerCase().includes(q) ? '' : 'none';
    });
  });
}

function setClusterFilter(clusterIdx, btn, accent) {
  activeCluster = clusterIdx;
  document.getElementById('cluster-all').classList.remove('active');
  document.getElementById('cluster-all').style.background = '';
  document.getElementById('cluster-all').style.color = '';
  document.querySelectorAll('#cluster-btns .cluster-btn').forEach(b => {
    b.classList.remove('active');
    b.style.background = '';
    b.style.color = '';
  });
  btn.classList.add('active');
  btn.style.background = accent;
  btn.style.color = '#1e1e2e';
  applyFilters();
}

function toggleKind(k, el) {
  if (activeKinds.has(k)) activeKinds.delete(k); else activeKinds.add(k);
  el.classList.toggle('off', !activeKinds.has(k));
  applyFilters();
}
function toggleFile(f, el) {
  if (hiddenFiles.has(f)) hiddenFiles.delete(f); else hiddenFiles.add(f);
  el.classList.toggle('off', hiddenFiles.has(f));
  applyFilters();
}

function applyFilters() {
  if (!cy) return;
  cy.batch(() => {
    cy.nodes().forEach(n => {
      const d = n.data();
      const visible =
        activeKinds.has(d.kind) &&
        activeVis.has(d.vis) &&
        !hiddenFiles.has(d.file) &&
        (!flagFilterAsync  || d.is_async) &&
        (!flagFilterUnsafe || d.is_unsafe) &&
        (activeCluster === null || d.cluster === activeCluster);
      n.style('display', visible ? 'element' : 'none');
    });
    cy.edges().forEach(e => {
      const d  = e.data();
      const ok = e.source().style('display') !== 'none' &&
                 e.target().style('display') !== 'none';
      e.style('display', ok ? 'element' : 'none');
    });
  });
}

// ── Edge legend (bottom right) ─────────────────────────────────────────────
function buildEdgeLegend() {
  const container = document.getElementById('legend-rows');
  Object.entries(EDGE_COLOR).forEach(([kind, color]) => {
    const row = document.createElement('div');
    row.className = 'legend-row';
    row.innerHTML = `<div class="edge-line" style="background:${color}"></div>`
                  + `<span style="color:${color};font-size:10px">${kind}</span>`;
    container.appendChild(row);
  });
}

// ── Inspector ──────────────────────────────────────────────────────────────
function openInspector(node) {
  const d = node.data();

  const badge = document.getElementById('insp-badge');
  badge.textContent = d.kind;
  badge.style.background = d.color || '#a6adc8';

  document.getElementById('insp-name').textContent = d.label;
  document.getElementById('insp-qualified').textContent = d.qualified_name;
  document.getElementById('insp-file').textContent = `${d.file}:${d.start_line}`;

  // "Open in editor" deep links
  const editorLinks = document.getElementById('editor-links');
  editorLinks.innerHTML = '';
  const line = d.start_line || 1;
  const fileEnc = encodeURIComponent(d.file);
  [
    { label: 'VS Code', href: `vscode://file/${d.file}:${line}` },
    { label: 'Cursor',  href: `cursor://file/${d.file}:${line}` },
    { label: 'IDEA',    href: `idea://open?file=${fileEnc}&line=${line}` },
  ].forEach(({ label, href }) => {
    const a = document.createElement('a');
    a.className = 'editor-link'; a.textContent = label; a.href = href; a.target = '_blank';
    editorLinks.appendChild(a);
  });

  document.getElementById('insp-loc').textContent = d.loc ? `${d.loc} lines` : '—';

  const tags = document.getElementById('insp-tags');
  tags.innerHTML = '';
  const vis = d.vis || 'private';
  const visTag = document.createElement('span');
  visTag.className = `tag ${vis === 'pub' ? 'pub' : vis === 'pub(crate)' ? 'pubcrate' : ''}`;
  visTag.textContent = vis;
  tags.appendChild(visTag);
  if (d.is_async)  { const t = document.createElement('span'); t.className='tag async';  t.textContent='async';  tags.appendChild(t); }
  if (d.is_unsafe) { const t = document.createElement('span'); t.className='tag unsafe'; t.textContent='unsafe'; tags.appendChild(t); }

  const callers = cy.edges(`[target = "${d.id}"][kind = "calls"]`).map(e => e.source().data());
  renderInspList('insp-callers', 'insp-callers-count', callers);

  const callees = cy.edges(`[source = "${d.id}"][kind = "calls"]`).map(e => e.target().data());
  renderInspList('insp-callees', 'insp-callees-count', callees);

  const deps = cy.edges(`[source = "${d.id}"]`)
    .filter(e => ['uses','implements','inherits'].includes(e.data('kind')))
    .map(e => e.target().data());
  renderInspList('insp-deps', 'insp-deps-count', deps);

  document.getElementById('inspector').style.display = 'block';
  document.getElementById('trace-target').value = '';
  document.getElementById('trace-result').textContent = '';
  document.getElementById('trace-clear').style.display = 'none';
  clearTrace();
}

function renderInspList(listId, countId, items) {
  const list  = document.getElementById(listId);
  const count = document.getElementById(countId);
  count.textContent = items.length;
  list.innerHTML = '';
  items.slice(0, 12).forEach(item => {
    const el = document.createElement('div');
    el.className = 'insp-link';
    el.textContent = item.label;
    el.title = item.qualified_name;
    el.addEventListener('click', () => {
      const n = cy.getElementById(item.id);
      if (n.length) { cy.animate({ fit:{ eles:n, padding:80 }, duration:400 }); openInspector(n); }
    });
    list.appendChild(el);
  });
  if (!items.length) {
    const el = document.createElement('div'); el.className='insp-empty'; el.textContent='none';
    list.appendChild(el);
  } else if (items.length > 12) {
    const el = document.createElement('div'); el.className='insp-empty';
    el.textContent = `+${items.length - 12} more`;
    list.appendChild(el);
  }
}

function closeInspector() {
  document.getElementById('inspector').style.display = 'none';
  clearTrace();
}

// ── Trace path (BFS client-side) ───────────────────────────────────────────
document.getElementById('trace-run').addEventListener('click', runTrace);
document.getElementById('trace-target').addEventListener('keydown', e => {
  if (e.key === 'Enter') runTrace();
});
document.getElementById('trace-clear').addEventListener('click', () => {
  clearTrace();
  document.getElementById('trace-result').textContent = '';
  document.getElementById('trace-clear').style.display = 'none';
});

function runTrace() {
  if (!cy) return;
  clearTrace();
  const insp   = document.getElementById('insp-name').textContent;
  const target = document.getElementById('trace-target').value.trim();
  if (!insp || !target) return;

  const srcNodes = cy.nodes().filter(n => n.data('label') === insp || n.data('qualified_name').includes(insp));
  const dstNodes = cy.nodes().filter(n => n.data('label') === target || n.data('qualified_name').includes(target));

  if (!srcNodes.length || !dstNodes.length) {
    document.getElementById('trace-result').textContent = 'Symbol not found.';
    return;
  }

  const path = bfsPath(srcNodes[0].id(), dstNodes[0].id());
  const result = document.getElementById('trace-result');
  if (!path) { result.textContent = 'No path found.'; return; }

  result.textContent = `Path: ${path.length - 1} hop${path.length - 2 === 1 ? '' : 's'}`;
  document.getElementById('trace-clear').style.display = '';

  cy.elements().addClass('dimmed');
  tracedEdges = [];
  for (let i = 0; i < path.length; i++) {
    const n = cy.getElementById(path[i]);
    n.removeClass('dimmed').addClass('path-node');
    if (i > 0) {
      const e = cy.edges(`[source = "${path[i-1]}"][target = "${path[i]}"]`);
      e.removeClass('dimmed').addClass('path-edge');
      tracedEdges.push(e);
    }
  }
  cy.animate({ fit:{ eles: cy.collection(path.map(id => cy.getElementById(id))), padding:80 }, duration:600 });
}

function clearTrace() {
  if (cy) cy.elements().removeClass('dimmed path-node path-edge highlighted');
  tracedEdges = null;
}

function bfsPath(srcId, dstId) {
  if (srcId === dstId) return [srcId];
  const prev = {}, visited = new Set([srcId]), queue = [srcId];
  while (queue.length) {
    const cur = queue.shift();
    for (const nb of cy.getElementById(cur).outgoers('node')) {
      const nbId = nb.id();
      if (visited.has(nbId)) continue;
      prev[nbId] = cur;
      if (nbId === dstId) {
        const path = [dstId]; let c = dstId;
        while (prev[c]) { c = prev[c]; path.unshift(c); }
        return path;
      }
      visited.add(nbId); queue.push(nbId);
    }
    if (visited.size > 4000) break;
  }
  return null;
}

// ── Search ─────────────────────────────────────────────────────────────────
const searchInput = document.getElementById('search-input');
const searchCount = document.getElementById('search-count');
const searchNav   = document.getElementById('search-nav');
const searchClear = document.getElementById('search-clear');

searchInput.addEventListener('input', () => {
  const q = searchInput.value.trim().toLowerCase();
  searchClear.style.display = q ? '' : 'none';
  if (!q || !cy) { clearSearch(); return; }
  searchMatches = cy.nodes().filter(n =>
    n.data('label').toLowerCase().includes(q) ||
    n.data('qualified_name').toLowerCase().includes(q)
  ).toArray();
  searchIdx = 0;
  updateSearchUI();
  if (searchMatches.length) zoomToMatch(0);
});
searchInput.addEventListener('keydown', e => {
  if (!searchMatches.length) return;
  if (e.key === 'ArrowDown' || e.key === 'Enter') {
    e.preventDefault(); searchIdx = (searchIdx + 1) % searchMatches.length; zoomToMatch(searchIdx);
  }
  if (e.key === 'ArrowUp') {
    e.preventDefault(); searchIdx = (searchIdx - 1 + searchMatches.length) % searchMatches.length; zoomToMatch(searchIdx);
  }
  if (e.key === 'Escape') { clearSearch(); searchInput.value = ''; }
});
document.getElementById('search-prev').addEventListener('click', () => {
  if (!searchMatches.length) return;
  searchIdx = (searchIdx - 1 + searchMatches.length) % searchMatches.length;
  zoomToMatch(searchIdx);
});
document.getElementById('search-next').addEventListener('click', () => {
  if (!searchMatches.length) return;
  searchIdx = (searchIdx + 1) % searchMatches.length;
  zoomToMatch(searchIdx);
});
searchClear.addEventListener('click', () => { clearSearch(); searchInput.value = ''; });

function zoomToMatch(i) {
  const n = searchMatches[i];
  cy.animate({ center:{ eles: n }, zoom: 3, duration: 300 });
  openInspector(n);
  updateSearchUI();
}
function updateSearchUI() {
  if (!searchMatches.length) { clearSearch(); return; }
  searchCount.textContent = `${searchIdx + 1}/${searchMatches.length}`;
  searchNav.style.display = 'flex';
  cy.elements().removeClass('highlighted dimmed');
  if (searchMatches.length < cy.nodes().length) {
    cy.elements().addClass('dimmed');
    searchMatches.forEach(n => n.removeClass('dimmed').addClass('highlighted'));
  }
}
function clearSearch() {
  searchMatches = []; searchIdx = 0;
  searchCount.textContent = '';
  searchNav.style.display = 'none';
  if (cy) cy.elements().removeClass('highlighted dimmed path-node path-edge');
}

// ── Layout switcher ────────────────────────────────────────────────────────
document.querySelectorAll('.layout-btn').forEach(btn => {
  btn.addEventListener('click', () => {
    document.querySelectorAll('.layout-btn').forEach(b => b.classList.remove('active'));
    btn.classList.add('active');
    runLayout(btn.dataset.layout);
  });
});
</script>
</body>
</html>