{% extends "base.html" %}

{% block title %}Ontology Graph — Ontoref{% endblock title %}
{% block nav_graph %}active{% endblock nav_graph %}
{% block nav_group_knowledge %}active{% endblock nav_group_knowledge %}
{% block main_class %}container mx-auto px-4 py-6{% endblock main_class %}

{% block head %}
<script src="https://cdn.jsdelivr.net/npm/cytoscape@3.30.2/dist/cytoscape.min.js"></script>
<script src="/assets/vendor/cytoscape-navigator.js"></script>
<style>
  #graph-fullscreen-wrapper:fullscreen,
  #graph-fullscreen-wrapper:-webkit-full-screen {
    display: flex;
    flex-direction: column;
    background: oklch(var(--b1));
    padding: 12px 16px;
    box-sizing: border-box;
  }
  #graph-fullscreen-wrapper:fullscreen #graph-root,
  #graph-fullscreen-wrapper:-webkit-full-screen #graph-root {
    flex: 1 1 auto;
    height: 0; /* flex child — grows to fill remaining space */
  }

  #graph-root {
    display: flex;
    height: calc(100vh - 148px);
    min-height: 400px;
    gap: 0;
    user-select: none;
  }

  #cy-wrapper {
    flex: 1 1 auto;
    min-width: 220px;
    overflow: hidden;
    border-radius: 0.5rem;
    position: relative;
  }
  #cy { width: 100%; height: 100%; }

  /* Floating controls — bottom-right */
  #cy-controls {
    position: absolute;
    bottom: 14px;
    right: 14px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  #cy-controls button {
    width: 30px;
    height: 30px;
    border-radius: 6px;
    border: 1px solid oklch(var(--bc) / 0.18);
    background: oklch(var(--b2) / 0.90);
    color: oklch(var(--bc));
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.12s, border-color 0.12s, color 0.12s;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  #cy-controls button:hover {
    background: oklch(var(--p) / 0.85);
    border-color: oklch(var(--p));
    color: oklch(var(--pc));
  }
  #cy-controls button svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    pointer-events: none;
  }
  .ctrl-divider {
    height: 1px;
    background: oklch(var(--bc) / 0.15);
    margin: 2px 0;
  }

  /* Minimap — bottom-left */
  #cy-nav {
    position: absolute;
    bottom: 14px;
    left: 14px;
    z-index: 10;
    width: 160px;
    height: 96px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid oklch(var(--bc) / 0.15);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }
  /* navigator internals */
  #cy-nav canvas { display: block; }
  .cy-navigator-view {
    border: 2px solid oklch(var(--p) / 0.7) !important;
    background: oklch(var(--p) / 0.12) !important;
    border-radius: 2px !important;
  }

  #resize-handle {
    flex: 0 0 6px;
    cursor: col-resize;
    background: transparent;
    position: relative;
    z-index: 20;
    transition: background 0.15s;
  }
  #resize-handle:hover,
  #resize-handle.dragging { background: oklch(var(--p) / 0.5); }
  #resize-handle::after {
    content: "";
    position: absolute;
    left: 2px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 40px;
    border-radius: 99px;
    background: oklch(var(--bc) / 0.25);
  }

  #detail-panel {
    flex: 0 0 300px;
    min-width: 160px;
    max-width: 60%;
    overflow-y: auto;
    overflow-x: hidden;
    border-radius: 0.5rem;
  }
</style>
{% endblock head %}

{% block content %}
<input type="hidden" id="graph-slug" value="{% if slug %}{{ slug }}{% endif %}">

<!-- Legend modal -->
<dialog id="legend-modal" class="modal">
  <div class="modal-box w-11/12 max-w-2xl">
    <div class="flex justify-between items-center mb-5">
      <h3 class="font-bold text-lg">Graph Legend</h3>
      <form method="dialog"><button class="btn btn-sm btn-circle btn-ghost">✕</button></form>
    </div>
    <div class="space-y-6 text-sm overflow-y-auto max-h-[70vh] pr-1">

      <!-- Levels -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Levels — abstraction of knowledge</p>
        <div class="space-y-3">
          <div class="flex items-start gap-3">
            <span class="btn btn-xs btn-warning flex-shrink-0 pointer-events-none select-none" style="min-width:80px">◆ Axiom</span>
            <div>
              <p class="font-medium leading-snug">Fundamental invariant</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">What the project holds to be unconditionally true. Axioms cannot change without a formal ADR. They anchor the rest of the graph — every Tension and Practice traces back to at least one Axiom.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs btn-error flex-shrink-0 pointer-events-none select-none" style="min-width:80px">● Tension</span>
            <div>
              <p class="font-medium leading-snug">Active contradiction</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A force the project holds without resolving. Tensions are not problems to eliminate — they are productive oppositions that generate direction. Each Practice exists because a Tension demands a response.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs btn-success flex-shrink-0 pointer-events-none select-none" style="min-width:80px">▪ Practice</span>
            <div>
              <p class="font-medium leading-snug">Concrete approach</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">How the project operationalizes a Tension. Practices are the most mutable layer — they evolve as the project learns. They map directly to artifacts, ADRs, and code.</p>
            </div>
          </div>
        </div>
      </section>

      <div class="divider my-0"></div>

      <!-- Extended levels -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Extended levels — code &amp; system layers</p>
        <div class="space-y-3">
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#6366f1;border-color:#6366f1;color:#fff;min-width:80px">⬢ Crates</span>
            <div>
              <p class="font-medium leading-snug">Workspace crate</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A Rust crate declared in the workspace <code>Cargo.toml</code>. Edges show intra-workspace <code>DependsOn</code> relationships — external crates are omitted.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#6366f1;border-color:#6366f1;color:#fff;min-width:80px;opacity:0.8">⬡ API Crate</span>
            <div>
              <p class="font-medium leading-snug">API surface crate</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A crate that has exported <code>#[onto_api]</code> routes. Generated from <code>artifacts/api-catalog-*.ncl</code>.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#10b981;border-color:#10b981;color:#fff;min-width:80px">⊢ Routes</span>
            <div>
              <p class="font-medium leading-snug">HTTP route</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">An individual HTTP endpoint annotated with <code>#[onto_api]</code>. Each route is owned by exactly one API Crate node via a <code>Contains</code> edge.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#ec4899;border-color:#ec4899;color:#fff;min-width:80px">⬡ State</span>
            <div>
              <p class="font-medium leading-snug">FSM dimension</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A lifecycle dimension from <code>.ontology/state.ncl</code>. Shows <code>current_state</code> → <code>desired_state</code>. <code>CoupledWith</code> edges link co-dependent dimensions. Invariant flag is set when current equals desired.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#14b8a6;border-color:#14b8a6;color:#fff;min-width:80px">⊓ Config</span>
            <div>
              <p class="font-medium leading-snug">Config section</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A named section in <code>.ontoref/config.ncl</code> as declared in <code>manifest.config_surface.sections</code>. Includes contract reference when a Nickel type contract is attached.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#f97316;border-color:#f97316;color:#fff;min-width:80px">◈ Deps</span>
            <div>
              <p class="font-medium leading-snug">External requirement</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">A tool, service, or infrastructure dependency from <code>manifest.requirements</code>. Invariant nodes are <em>required</em> (missing them breaks the project). Optional nodes degrade gracefully.</p>
            </div>
          </div>
        </div>
      </section>

      <div class="divider my-0"></div>

      <!-- Poles -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Poles — which force drives the node</p>
        <div class="space-y-3">
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#f59e0b;color:#111;border-color:#f59e0b;min-width:64px">Yang</span>
            <div>
              <p class="font-medium leading-snug">Active · building · outward</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that assert, create, or push outward. Yang principles drive the definition of what a project <em>does</em> and what it makes available to others.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#3b82f6;color:#fff;border-color:#3b82f6;min-width:64px">Yin</span>
            <div>
              <p class="font-medium leading-snug">Receptive · constraining · protective</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that receive, limit, or protect. Yin principles define what the project <em>refuses</em>, what boundaries it holds, and what it conserves.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#8b5cf6;color:#fff;border-color:#8b5cf6;min-width:64px">Spiral</span>
            <div>
              <p class="font-medium leading-snug">Dialectical · both/and · evolving</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that hold both sides simultaneously and move through the tension. Spiral principles cannot be resolved into Yang or Yin — they are the engine of change itself.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#ec4899;color:#fff;border-color:#ec4899;min-width:64px">State</span>
            <div>
              <p class="font-medium leading-snug">Lifecycle · FSM · temporal</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that represent the project's operational state model — FSM dimensions tracking where the project currently is and where it intends to go.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#14b8a6;color:#fff;border-color:#14b8a6;min-width:64px">Config</span>
            <div>
              <p class="font-medium leading-snug">Configuration · settings · tuneable</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that describe the project's runtime configuration surface — sections that can be overridden without recompiling, validated by Nickel contracts at load time.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <span class="btn btn-xs flex-shrink-0 pointer-events-none select-none" style="background:#f97316;color:#fff;border-color:#f97316;min-width:64px">Env</span>
            <div>
              <p class="font-medium leading-snug">Environment · external · required tooling</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes that represent external dependencies the project cannot provide for itself — tools, services, and infrastructure that must be present in the environment.</p>
            </div>
          </div>
        </div>
      </section>

      <div class="divider my-0"></div>

      <!-- Layouts -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Layouts — how the graph is arranged</p>
        <div class="space-y-3">
          <div class="flex items-start gap-3">
            <div class="join flex-shrink-0">
              <span class="join-item btn btn-xs btn-primary pointer-events-none select-none">Hierarchy</span>
            </div>
            <div>
              <p class="font-medium leading-snug">Breadth-first top-down</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Axioms at the root, Tensions in the middle, Practices at the leaves. Use this to trace causality: which invariants drive which contradictions, and which contradictions demand which responses.</p>
            </div>
          </div>
          <div class="flex items-start gap-3">
            <div class="join flex-shrink-0">
              <span class="join-item btn btn-xs btn-ghost pointer-events-none select-none">Force</span>
            </div>
            <div>
              <p class="font-medium leading-snug">Physics simulation (COSE)</p>
              <p class="text-base-content/60 leading-relaxed mt-0.5">Nodes are pulled together by edges and pushed apart by repulsion. Heavily connected nodes cluster at the center. Use this to find hubs — nodes that influence many others — and isolated areas that may be undertested or underdocumented.</p>
            </div>
          </div>
        </div>
      </section>

      <div class="divider my-0"></div>

      <!-- Visual cues -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Visual cues</p>
        <div class="space-y-2.5">
          <div class="flex items-center gap-3">
            <span class="inline-block w-4 h-4 rounded-sm flex-shrink-0" style="background:#f59e0b;outline:3px solid #f59e0b;outline-offset:1px"></span>
            <p class="text-base-content/70"><span class="font-medium text-base-content">Gold border</span> — invariant node. Cannot be modified without creating a formal ADR.</p>
          </div>
          <div class="flex items-center gap-3">
            <span class="inline-block w-4 h-4 rounded-sm flex-shrink-0" style="background:#6b7280;outline:2px solid #fff;outline-offset:1px"></span>
            <p class="text-base-content/70"><span class="font-medium text-base-content">White border</span> — currently selected node.</p>
          </div>
          <div class="flex items-center gap-3">
            <span class="inline-block w-4 h-4 rounded-sm flex-shrink-0 opacity-20" style="background:#6b7280"></span>
            <p class="text-base-content/70"><span class="font-medium text-base-content">Dimmed nodes</span> — not connected to the selected node. Click the canvas to clear.</p>
          </div>
        </div>
      </section>

      <div class="divider my-0"></div>

      <!-- Shortcuts -->
      <section>
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-3">Keyboard shortcuts</p>
        <div class="grid grid-cols-2 gap-x-6 gap-y-1.5 text-xs">
          <div class="flex gap-2 items-center"><kbd class="kbd kbd-xs">f</kbd><span class="text-base-content/60">Fit all nodes in view</span></div>
          <div class="flex gap-2 items-center"><kbd class="kbd kbd-xs">+</kbd><span class="text-base-content/60">Zoom in</span></div>
          <div class="flex gap-2 items-center"><kbd class="kbd kbd-xs">g</kbd><span class="text-base-content/60">Toggle full screen</span></div>
          <div class="flex gap-2 items-center"><kbd class="kbd kbd-xs">−</kbd><span class="text-base-content/60">Zoom out</span></div>
          <div class="flex gap-2 items-center"><kbd class="kbd kbd-xs">Esc</kbd><span class="text-base-content/60">Close detail panel</span></div>
        </div>
      </section>

    </div>
  </div>
  <form method="dialog" class="modal-backdrop"><button>close</button></form>
</dialog>


<div id="graph-fullscreen-wrapper">
<!-- Toolbar row 1: title + inline node search + layout controls -->
<div class="flex items-center justify-between mb-1 gap-2">
  <h1 class="text-lg font-bold shrink-0">Ontology Graph</h1>
  <div class="relative flex-1 max-w-xs min-w-0" id="search-wrap">
    <input id="graph-search" type="search" placeholder="Search nodes…"
           class="input input-bordered input-xs w-full pr-14 font-mono text-xs"
           autocomplete="off" autocorrect="off" spellcheck="false">
    <span class="absolute right-2 top-1.5 text-xs text-base-content/30 pointer-events-none select-none"
          id="search-count"></span>
    <ul id="search-dropdown"
        class="hidden absolute left-0 top-full mt-1 w-full bg-base-100 border border-base-content/15 rounded-lg shadow-xl z-50 max-h-56 overflow-y-auto text-xs">
    </ul>
  </div>
  <div class="flex items-center gap-1 shrink-0">
    <div class="join">
      <button id="btn-bfs"  class="join-item btn btn-xs btn-primary">Hierarchy</button>
      <button id="btn-cose" class="join-item btn btn-xs btn-ghost">Force</button>
    </div>
    <button id="btn-reset"  class="btn btn-xs btn-ghost">Reset</button>
    <button id="btn-legend" class="btn btn-xs btn-ghost" title="Graph legend">?</button>
  </div>
</div>

<!-- Toolbar row 2: filters, grouped by category -->
<div class="flex flex-wrap items-center gap-x-2 gap-y-1 mb-2 text-xs">

  <!-- Ontology core -->
  <span class="text-base-content/40 font-medium uppercase tracking-wide text-[10px]">Ontology</span>
  <div class="flex gap-1">
    <button class="filter-btn btn btn-xs btn-warning" data-level="Axiom">◆ Axiom</button>
    <button class="filter-btn btn btn-xs btn-error"   data-level="Tension">● Tension</button>
    <button class="filter-btn btn btn-xs btn-success" data-level="Practice">▪ Practice</button>
  </div>

  <div class="w-px h-4 bg-base-content/15 self-center"></div>

  <!-- Code surface -->
  <span class="text-base-content/40 font-medium uppercase tracking-wide text-[10px]">Code</span>
  <div class="flex gap-1">
    <button class="filter-btn btn btn-xs" data-level="WorkspaceCrate" style="background:#6366f1;border-color:#6366f1;color:#fff">⬢ Crates</button>
    <button class="filter-btn btn btn-xs" data-level="Crate"          style="background:#6366f1;border-color:#6366f1;color:#fff;opacity:0.8">⬡ API Crate</button>
    <button class="filter-btn btn btn-xs" data-level="Route"          style="background:#10b981;border-color:#10b981;color:#fff">⊢ Routes</button>
  </div>

  <div class="w-px h-4 bg-base-content/15 self-center"></div>

  <!-- System -->
  <span class="text-base-content/40 font-medium uppercase tracking-wide text-[10px]">System</span>
  <div class="flex gap-1">
    <button class="filter-btn btn btn-xs" data-level="Dimension"     style="background:#ec4899;border-color:#ec4899;color:#fff">⬡ State</button>
    <button class="filter-btn btn btn-xs" data-level="ConfigSection" style="background:#14b8a6;border-color:#14b8a6;color:#fff">⊓ Config</button>
    <button class="filter-btn btn btn-xs" data-level="Requirement"   style="background:#f97316;border-color:#f97316;color:#fff">◈ Deps</button>
  </div>

  <div class="w-px h-4 bg-base-content/15 self-center"></div>

  <!-- Poles -->
  <span class="text-base-content/40 font-medium uppercase tracking-wide text-[10px]">Pole</span>
  <div class="flex gap-1">
    <button class="filter-btn btn btn-xs" style="background:#f59e0b;color:#111;border-color:#f59e0b"  data-pole="Yang">Yang</button>
    <button class="filter-btn btn btn-xs" style="background:#3b82f6;color:#fff;border-color:#3b82f6"  data-pole="Yin">Yin</button>
    <button class="filter-btn btn btn-xs" style="background:#8b5cf6;color:#fff;border-color:#8b5cf6"  data-pole="Spiral">Spiral</button>
    <button class="filter-btn btn btn-xs" style="background:#ec4899;color:#fff;border-color:#ec4899"  data-pole="State">State</button>
    <button class="filter-btn btn btn-xs" style="background:#14b8a6;color:#fff;border-color:#14b8a6"  data-pole="Config">Config</button>
    <button class="filter-btn btn btn-xs" style="background:#f97316;color:#fff;border-color:#f97316"  data-pole="Env">Env</button>
  </div>

</div>

<!-- Split: graph | drag handle | detail -->
<div id="graph-root">
  <div id="cy-wrapper" class="bg-base-200">
    <div id="cy"></div>

    <!-- Minimap -->
    <div id="cy-nav"></div>

    <!-- Floating zoom + nav controls -->
    <div id="cy-controls">
      <button id="cy-zoom-in"   title="Zoom in">+</button>
      <button id="cy-zoom-out"  title="Zoom out">−</button>
      <div class="ctrl-divider"></div>
      <button id="cy-fit"       title="Fit to view"></button>
      <button id="cy-fullscreen" title="Full screen"></button>
    </div>
  </div>

  <div id="resize-handle"></div>

  <div id="detail-panel" class="bg-base-200 p-4 hidden">
    <!-- Panel nav header -->
    <div class="flex items-center gap-0.5 mb-2">
      <button id="nav-back"    class="btn btn-xs btn-ghost px-1.5" title="Back"    disabled>‹</button>
      <button id="nav-forward" class="btn btn-xs btn-ghost px-1.5" title="Forward" disabled>›</button>
      <h3 class="font-bold text-base leading-tight flex-1 truncate mx-1" id="d-name"></h3>
      <button id="btn-close-panel" class="btn btn-xs btn-ghost flex-shrink-0">✕</button>
    </div>

    <!-- Node detail view -->
    <div id="d-node-view">
      <div class="flex flex-wrap gap-1 mb-2" id="d-badges"></div>
      <p class="text-xs text-base-content/70 mb-3 leading-relaxed" id="d-description"></p>
      <div id="d-artifacts" class="hidden mb-3">
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-1">Artifacts</p>
        <ul id="d-artifact-list" class="text-xs font-mono text-base-content/60 space-y-1 break-all"></ul>
      </div>
      <div id="d-adrs" class="hidden mb-3">
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-1">Validated by</p>
        <ul id="d-adr-list" class="text-xs font-mono space-y-1"></ul>
      </div>
      <div id="d-edges" class="hidden mb-3">
        <p class="text-xs font-semibold text-base-content/40 uppercase tracking-wider mb-1">Connections</p>
        <ul id="d-edge-list" class="text-xs text-base-content/60 space-y-1"></ul>
      </div>
      <div id="d-extra" class="hidden space-y-3"></div>
    </div>

    <!-- Content view: file or ADR rendered in-panel -->
    <div id="d-content-view" class="hidden">
      <p class="text-xs text-base-content/40 mb-3 font-mono break-all leading-relaxed" id="d-content-subtitle"></p>
      <div id="d-content-body" class="text-sm space-y-3"></div>
    </div>
  </div>
</div>
</div>
{% endblock content %}

{% block scripts %}
<script>
// ── Source link helper ────────────────────────────────────────────────────────
// Opens file paths in the configured repo (Gitea/GitHub /src/branch/main/{path}).
// Falls back to cargo-doc root for .rs files when docs URL is set.
// option 1 (load file) is intentionally not used.
const CARD_REPO = "{{ card_repo | default(value='') | safe }}";
const CARD_DOCS = "{{ card_docs | default(value='') | safe }}";

function srcOpen(path) {
  if (!path) return;
  const ext = path.split('.').pop();
  if (ext === 'rs' && CARD_DOCS) {
    window.open(CARD_DOCS.replace(/\/$/, ''), '_blank', 'noopener');
    return;
  }
  if (CARD_REPO) {
    window.open(`${CARD_REPO.replace(/\/$/, '')}/src/branch/main/${path}`, '_blank', 'noopener');
    return;
  }
  // no URL configured — nothing to open
}

const GRAPH = {{ graph_json | safe }};

// ── Icons ─────────────────────────────────────────────────────
const SVG_FIT = `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M8 3H5a2 2 0 0 0-2 2v3m18 0V5a2 2 0 0 0-2-2h-3m0 18h3a2 2 0 0 0 2-2v-3M3 16v3a2 2 0 0 0 2 2h3"/></svg>`;
const SVG_FS_ENTER = `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M15 3h6v6M9 21H3v-6M21 3l-7 7M3 21l7-7"/></svg>`;
const SVG_FS_EXIT  = `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M8 3v3a2 2 0 0 1-2 2H3m18 0h-3a2 2 0 0 1-2-2V3m0 18v-3a2 2 0 0 1 2-2h3M3 16h3a2 2 0 0 1 2 2v3"/></svg>`;

document.getElementById('cy-fit').innerHTML        = SVG_FIT;
document.getElementById('cy-fullscreen').innerHTML = SVG_FS_ENTER;

// ── Graph data ────────────────────────────────────────────────
const POLE_COLOR = { Yang: "#f59e0b", Yin: "#3b82f6", Spiral: "#8b5cf6", Api: "#10b981", Code: "#6366f1", State: "#ec4899", Config: "#14b8a6", Env: "#f97316" };
const LEVEL_SHAPE = {
  Axiom:          "diamond",
  Tension:        "ellipse",
  Practice:       "round-rectangle",
  Project:        "hexagon",
  Moment:         "triangle",
  Crate:          "round-hexagon",
  Route:          "tag",
  Dimension:      "hexagon",
  WorkspaceCrate: "barrel",
  ConfigSection:  "cut-rectangle",
  Requirement:    "round-tag",
};
const EDGE_STYLE = {
  ManifestsIn: { color: "#6b7280" },
  DependsOn:   { color: "#ef4444" },
  Resolves:    { color: "#22c55e" },
  Implies:     { color: "#f59e0b" },
  Complements: { color: "#3b82f6" },
  Contradicts: { color: "#ec4899", dashed: true },
  TensionWith: { color: "#f97316", dashed: true },
  Contains:    { color: "#a3a3a3" },
  FlowsTo:     { color: "#06b6d4" },
  SpiralsWith: { color: "#8b5cf6" },
  LimitedBy:   { color: "#f43f5e" },
  ValidatedBy: { color: "#84cc16" },
  CoupledWith: { color: "#ec4899", dashed: true },
};

const nodes = (GRAPH.nodes || []).map(n => ({
  data: {
    id:             n.id,
    label:          n.name || n.id,
    pole:           n.pole || "",
    level:          n.level || "",
    description:    n.description || "",
    invariant:      !!n.invariant,
    artifact_paths: n.artifact_paths || [],
    adrs:           n.adrs || [],
    color:          POLE_COLOR[n.pole] || "#6b7280",
    shape:          LEVEL_SHAPE[n.level] || "ellipse",
    // Route
    method:         n.method  || "",
    auth:           n.auth    || "",
    actors:         n.actors  || [],
    tags:           n.tags    || [],
    params:         n.params  || [],
    feature:        n.feature || "",
    // Dimension (FSM)
    current_state:  n.current_state || "",
    desired_state:  n.desired_state || "",
    horizon:        n.horizon || "",
    // WorkspaceCrate
    features:       n.features  || [],
    ws_deps:        n.ws_deps   || [],
    // ConfigSection
    contract:       n.contract  || "",
    // Requirement
    env_kind:       n.kind      || "",
    env_target:     n.env       || "",
    required:       !!n.required,
  }
}));

const edges = (GRAPH.edges || []).map(e => {
  const s = EDGE_STYLE[e.kind] || {};
  return {
    data: {
      id:     `${e.from}__${e.to}__${e.kind}`,
      source: e.from,
      target: e.to,
      kind:   e.kind || "",
      note:   e.note || "",
      color:  s.color || "#6b7280",
      dashed: !!s.dashed,
    }
  };
});

// ── Cytoscape ─────────────────────────────────────────────────
const cy = cytoscape({
  container: document.getElementById("cy"),
  elements: { nodes, edges },
  style: [
    {
      selector: "node",
      style: {
        "background-color":        "data(color)",
        "shape":                   "data(shape)",
        "width":                   32,
        "height":                  32,
        "border-width":            2,
        "border-color":            "#111827",
        "label":                   "data(label)",
        "color":                   "#f9fafb",
        "font-size":               "10px",
        "font-family":             "ui-sans-serif, system-ui, sans-serif",
        "font-weight":             500,
        "text-valign":             "bottom",
        "text-halign":             "center",
        "text-margin-y":           6,
        "text-wrap":               "wrap",
        "text-max-width":          "100px",
        "text-background-color":   "#0f172a",
        "text-background-opacity": 0.85,
        "text-background-shape":   "round-rectangle",
        "text-background-padding": "3px",
        "text-outline-width":      0,
      }
    },
    {
      selector: "node[?invariant]",
      style: { "border-color": "#f59e0b", "border-width": 3 }
    },
    {
      selector: "node:selected",
      style: { "border-color": "#ffffff", "border-width": 3 }
    },
    {
      selector: "node.faded",
      style: { "opacity": 0.2, "text-opacity": 0.2 }
    },
    {
      selector: "edge",
      style: {
        "line-color":         "data(color)",
        "target-arrow-color": "data(color)",
        "target-arrow-shape": "triangle",
        "curve-style":        "bezier",
        "width":              1.5,
        "arrow-scale":        0.8,
        "opacity":            0.6,
      }
    },
    {
      selector: "edge[?dashed]",
      style: { "line-style": "dashed", "line-dash-pattern": [6, 4] }
    },
    {
      selector: "edge.faded",
      style: { "opacity": 0.05 }
    },
    {
      selector: "edge.highlighted",
      style: {
        "opacity":  1,
        "width":    2.5,
        "label":    "data(kind)",
        "font-size": "9px",
        "color":    "#e5e7eb",
        "text-background-color":   "#0f172a",
        "text-background-opacity": 0.85,
        "text-background-padding": "2px",
        "text-background-shape":   "round-rectangle",
      }
    },
    {
      selector: "node.search-dim",
      style: { "opacity": 0.12 }
    },
    {
      selector: "node.search-match",
      style: { "border-color": "#ffffff", "border-width": 3, "opacity": 1 }
    },
  ],
  layout: buildBfsLayout(false),
  wheelSensitivity: 0.3,
  boxSelectionEnabled: false,
  minZoom: 0.1,
  maxZoom: 4,
});

// ── Minimap (navigator) ───────────────────────────────────────
if (typeof cy.navigator === 'function') {
  cy.navigator({
    container: document.getElementById('cy-nav'),
    viewLiveFramerate: 0,
    thumbnailEventFramerate: 30,
    thumbnailLiveFramerate: false,
    dblClickDelay: 200,
    removeCustomContainer: false,
    rerenderDelay: 100,
  });
} else {
  document.getElementById('cy-nav').style.display = 'none';
}

// ── Layout builders ───────────────────────────────────────────
function buildBfsLayout(animate) {
  return {
    name: "breadthfirst",
    directed: true,
    animate: !!animate,
    animationDuration: 500,
    animationEasing: 'ease-in-out-cubic',
    spacingFactor: 2.2,
    padding: 48,
    fit: true,
    avoidOverlap: true,
    nodeDimensionsIncludeLabels: true,
  };
}

function buildCoseLayout() {
  return {
    name:             "cose",
    animate:          false,
    randomize:        true,
    componentSpacing: 120,
    nodeRepulsion:    800000,
    nodeOverlap:      80,
    idealEdgeLength:  220,
    edgeElasticity:   20,
    nestingFactor:    1.0,
    gravity:          2,
    numIter:          3000,
    initialTemp:      2000,
    coolingFactor:    0.99,
    minTemp:          1.0,
    fit:              true,
    padding:          60,
  };
}

// ── Zoom at cursor ────────────────────────────────────────────
// Track last known mouse position over the canvas for cursor-centered zoom.
let lastCursorViewport = null;

document.getElementById('cy').addEventListener('mousemove', e => {
  const rect = e.currentTarget.getBoundingClientRect();
  lastCursorViewport = { x: e.clientX - rect.left, y: e.clientY - rect.top };
});
document.getElementById('cy').addEventListener('mouseleave', () => {
  lastCursorViewport = null;
});

function zoomAt(factor) {
  const oldZoom = cy.zoom();
  const newZoom = Math.max(cy.minZoom(), Math.min(cy.maxZoom(), oldZoom * factor));
  if (newZoom === oldZoom) return;

  if (lastCursorViewport) {
    const pan = cy.pan();
    const { x, y } = lastCursorViewport;
    cy.animate({
      zoom: newZoom,
      pan: {
        x: x - (x - pan.x) * (newZoom / oldZoom),
        y: y - (y - pan.y) * (newZoom / oldZoom),
      },
    }, { duration: 180, easing: 'ease-in-out-quad' });
  } else {
    cy.animate({ zoom: newZoom }, { duration: 180, easing: 'ease-in-out-quad' });
  }
}

// ── Floating controls ─────────────────────────────────────────
document.getElementById('cy-zoom-in').addEventListener('click',  () => zoomAt(1.35));
document.getElementById('cy-zoom-out').addEventListener('click', () => zoomAt(1 / 1.35));

document.getElementById('cy-fit').addEventListener('click', () => {
  cy.animate({ fit: { eles: cy.elements(':visible'), padding: 48 } }, { duration: 350, easing: 'ease-in-out-cubic' });
});

// ── Full-screen ───────────────────────────────────────────────
const graphFsWrapper = document.getElementById('graph-fullscreen-wrapper');
const btnFullscreen  = document.getElementById('cy-fullscreen');

function isFullscreen() {
  return !!(document.fullscreenElement || document.webkitFullscreenElement);
}

btnFullscreen.addEventListener('click', () => {
  if (!isFullscreen()) {
    const req = graphFsWrapper.requestFullscreen || graphFsWrapper.webkitRequestFullscreen;
    if (req) req.call(graphFsWrapper);
  } else {
    const exit = document.exitFullscreen || document.webkitExitFullscreen;
    if (exit) exit.call(document);
  }
});

function onFullscreenChange() {
  const fs = isFullscreen();
  btnFullscreen.innerHTML = fs ? SVG_FS_EXIT : SVG_FS_ENTER;
  btnFullscreen.title     = fs ? 'Exit full screen' : 'Full screen';
  requestAnimationFrame(() => { cy.resize(); cy.fit(undefined, 48); });
}

document.addEventListener('fullscreenchange',       onFullscreenChange);
document.addEventListener('webkitfullscreenchange', onFullscreenChange);

// ── Filters ───────────────────────────────────────────────────
const hiddenLevels = new Set(["Crate", "Route", "Dimension", "WorkspaceCrate", "ConfigSection", "Requirement"]);
const hiddenPoles  = new Set();
// Reflect initial hidden state on buttons.
document.querySelectorAll(".filter-btn[data-level]").forEach(btn => {
  if (hiddenLevels.has(btn.dataset.level)) {
    btn.style.opacity = "0.4";
    btn.style.textDecoration = "line-through";
  }
});

function applyFilters() {
  cy.nodes().forEach(n => {
    const hide = hiddenLevels.has(n.data("level")) || hiddenPoles.has(n.data("pole"));
    if (hide) n.hide(); else n.show();
  });
  cy.edges().forEach(e => {
    if (e.source().hidden() || e.target().hidden()) e.hide();
    else e.show();
  });
}

document.querySelectorAll(".filter-btn[data-level]").forEach(btn => {
  btn.addEventListener("click", () => {
    const level = btn.dataset.level;
    if (hiddenLevels.has(level)) {
      hiddenLevels.delete(level);
      btn.style.opacity = "1";
      btn.style.textDecoration = "";
    } else {
      hiddenLevels.add(level);
      btn.style.opacity = "0.4";
      btn.style.textDecoration = "line-through";
    }
    applyFilters();
  });
});

document.querySelectorAll(".filter-btn[data-pole]").forEach(btn => {
  btn.addEventListener("click", () => {
    const pole = btn.dataset.pole;
    if (hiddenPoles.has(pole)) {
      hiddenPoles.delete(pole);
      btn.style.opacity = "1";
      btn.style.textDecoration = "";
    } else {
      hiddenPoles.add(pole);
      btn.style.opacity = "0.4";
      btn.style.textDecoration = "line-through";
    }
    applyFilters();
  });
});

// ── Layout buttons ────────────────────────────────────────────
const btnBfs  = document.getElementById("btn-bfs");
const btnCose = document.getElementById("btn-cose");

btnBfs.addEventListener("click", () => {
  cy.layout(buildBfsLayout(true)).run();
  btnBfs.classList.add("btn-primary");  btnBfs.classList.remove("btn-ghost");
  btnCose.classList.add("btn-ghost");   btnCose.classList.remove("btn-primary");
});

btnCose.addEventListener("click", () => {
  cy.layout(buildCoseLayout()).run();
  btnCose.classList.add("btn-primary"); btnCose.classList.remove("btn-ghost");
  btnBfs.classList.add("btn-ghost");    btnBfs.classList.remove("btn-primary");
});

document.getElementById("btn-legend").addEventListener("click", () => {
  document.getElementById("legend-modal").showModal();
});

document.getElementById("btn-reset").addEventListener("click", () => {
  cy.elements().removeClass("faded highlighted");
  cy.animate(
    { fit: { eles: cy.elements(':visible'), padding: 48 } },
    { duration: 400, easing: 'ease-in-out-cubic' }
  );
  closePanel();
});

// ── Panel refs ────────────────────────────────────────────────
const panel          = document.getElementById("detail-panel");
const dName          = document.getElementById("d-name");
const dBadges        = document.getElementById("d-badges");
const dDesc          = document.getElementById("d-description");
const dArtifacts     = document.getElementById("d-artifacts");
const dList          = document.getElementById("d-artifact-list");
const dAdrs          = document.getElementById("d-adrs");
const dAdrList       = document.getElementById("d-adr-list");
const dEdges         = document.getElementById("d-edges");
const dEdgeList      = document.getElementById("d-edge-list");
const dExtra         = document.getElementById("d-extra");
const dNodeView      = document.getElementById("d-node-view");
const dContentView   = document.getElementById("d-content-view");
const dContentSub    = document.getElementById("d-content-subtitle");
const dContentBody   = document.getElementById("d-content-body");
const navBack        = document.getElementById("nav-back");
const navForward     = document.getElementById("nav-forward");
const GRAPH_SLUG     = document.getElementById("graph-slug").value || null;

// ── Panel history (browser-style back/forward) ────────────────
const panelNav = {
  stack:  [],
  cursor: -1,
  push(entry) {
    this.stack  = this.stack.slice(0, this.cursor + 1);
    this.stack.push(entry);
    this.cursor = this.stack.length - 1;
    this._sync();
  },
  back() {
    if (this.cursor <= 0) return;
    this.cursor--;
    this._replay();
    this._sync();
  },
  forward() {
    if (this.cursor >= this.stack.length - 1) return;
    this.cursor++;
    this._replay();
    this._sync();
  },
  reset() {
    this.stack  = [];
    this.cursor = -1;
    this._sync();
  },
  _replay() {
    const e = this.stack[this.cursor];
    if      (e.type === "node") openNode(e.id,   { push: false, animate: true });
    else if (e.type === "adr")  openAdr(e.id,    { push: false });
    else if (e.type === "file") srcOpen(e.id);
  },
  _sync() {
    navBack.disabled    = this.cursor <= 0;
    navForward.disabled = this.cursor >= this.stack.length - 1;
  }
};

navBack.addEventListener("click",    () => panelNav.back());
navForward.addEventListener("click", () => panelNav.forward());

// ── Panel view switching ──────────────────────────────────────
function showNodeView() {
  dNodeView.classList.remove("hidden");
  dContentView.classList.add("hidden");
}

function showContentView(subtitle) {
  dNodeView.classList.add("hidden");
  dContentView.classList.remove("hidden");
  dContentSub.textContent = subtitle || "";
}

function closePanel() {
  panel.classList.add("hidden");
  cy.elements().removeClass("faded highlighted");
  panelNav.reset();
}

// ── Open node in panel ────────────────────────────────────────
function openNode(id, { push = true, animate = true } = {}) {
  const node = cy.getElementById(id);
  if (!node.length) return;
  const d = node.data();

  panel.classList.remove("hidden");
  showNodeView();

  dName.textContent = d.label;
  dBadges.innerHTML =
    `<span class="badge badge-xs badge-outline">${d.level}</span>` +
    `<span class="badge badge-xs" style="background:${d.color};color:#111;border:none">${d.pole}</span>` +
    (d.invariant ? `<span class="badge badge-xs badge-warning">invariant</span>` : "");

  dDesc.textContent = d.description;

  if (d.artifact_paths.length) {
    dArtifacts.classList.remove("hidden");
    dList.innerHTML = d.artifact_paths.map(p => {
      const ext = p.split(".").pop();
      const canView = ["ncl","toml","rs","nu","md","json","html"].includes(ext);
      return `<li class="flex items-center gap-1.5 break-all">` +
        (canView
          ? `<button class="artifact-link font-mono text-xs text-primary hover:underline underline-offset-2 bg-transparent border-none p-0 text-left cursor-pointer" data-path="${p}">${p}</button>`
          : `<code class="text-xs text-base-content/60">${p}</code>`) +
        `</li>`;
    }).join("");
  } else {
    dArtifacts.classList.add("hidden");
  }

  if (d.adrs.length) {
    dAdrs.classList.remove("hidden");
    dAdrList.innerHTML = d.adrs.map(a =>
      `<li><span class="text-success mr-1">◆</span>` +
      `<button class="adr-link font-mono text-xs text-base-content/70 hover:text-primary underline-offset-2 hover:underline cursor-pointer bg-transparent border-none p-0" data-adr="${a}">${a}</button></li>`
    ).join("");
  } else {
    dAdrs.classList.add("hidden");
  }

  const conn = node.connectedEdges();
  if (conn.length) {
    dEdges.classList.remove("hidden");
    dEdgeList.innerHTML = conn.map(e => {
      const isSrc    = e.data("source") === d.id;
      const otherId  = isSrc ? e.data("target") : e.data("source");
      const other    = cy.getElementById(otherId);
      const otherLbl = other.data("label") || otherId;
      const arrow    = isSrc ? "→" : "←";
      return `<li class="flex gap-1 items-baseline">` +
             `<span class="opacity-40 flex-shrink-0">${arrow}</span>` +
             `<span class="text-base-content/80 flex-shrink-0 text-xs font-medium">${e.data("kind")}</span>` +
             `<button class="node-jump-link text-xs opacity-60 break-all bg-transparent border-none p-0 cursor-pointer hover:text-primary hover:underline underline-offset-2 text-left" data-node-id="${otherId}">${otherLbl}</button>` +
             `</li>`;
    }).join("");
  } else {
    dEdges.classList.add("hidden");
  }

  renderNodeExtra(d);

  cy.elements().addClass("faded").removeClass("highlighted");
  node.closedNeighborhood().removeClass("faded").addClass("highlighted");

  if (animate) {
    cy.animate(
      { center: { eles: node }, zoom: Math.max(cy.zoom(), 1.2) },
      { duration: 350, easing: "ease-in-out-cubic" }
    );
  }

  if (push) panelNav.push({ type: "node", id });
}

cy.on("tap", "node", evt => { openNode(evt.target.data("id")); });

cy.on("tap", evt => { if (evt.target === cy) closePanel(); });

document.getElementById("btn-close-panel").addEventListener("click", closePanel);

// ── Resizable split ───────────────────────────────────────────
const handle    = document.getElementById("resize-handle");
const cyWrapper = document.getElementById("cy-wrapper");

let resizing = false;

handle.addEventListener("mousedown", e => {
  resizing = true;
  handle.classList.add("dragging");
  document.body.style.cursor = "col-resize";
  e.preventDefault();
});

const graphRoot = document.getElementById("graph-root");

document.addEventListener("mousemove", e => {
  if (!resizing) return;
  const rect = graphRoot.getBoundingClientRect();
  const hW   = handle.offsetWidth;
  const cyW  = Math.max(220, e.clientX - rect.left);
  const panW = Math.max(160, rect.width - cyW - hW);
  if (cyW + panW + hW <= rect.width + 2) {
    cyWrapper.style.flex = `0 0 ${cyW}px`;
    if (!panel.classList.contains("hidden")) {
      panel.style.flex = `0 0 ${panW}px`;
    }
    cy.resize();
  }
});

document.addEventListener("mouseup", () => {
  if (!resizing) return;
  resizing = false;
  handle.classList.remove("dragging");
  document.body.style.cursor = "";
});

// ── Shared helpers ────────────────────────────────────────────
function esc(s) { return String(s ?? "").replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;"); }

function renderKvSection(data, skipKeys = []) {
  return Object.entries(data)
    .filter(([k, v]) => !skipKeys.includes(k) && v !== "" && v !== null && v !== undefined)
    .map(([k, v]) => {
      const label = k.replace(/_/g, " ");
      let val;
      if (Array.isArray(v)) {
        if (v.length === 0) return null;
        val = `<ul class="list-disc pl-4 space-y-0.5 text-base-content/70">${v.map(item =>
          typeof item === "object"
            ? `<li><pre class="text-xs whitespace-pre-wrap bg-base-300 p-1.5 rounded mt-0.5">${JSON.stringify(item, null, 2)}</pre></li>`
            : `<li>${item}</li>`
        ).join("")}</ul>`;
      } else if (typeof v === "object" && v !== null) {
        val = `<pre class="text-xs whitespace-pre-wrap bg-base-300 p-2 rounded">${JSON.stringify(v, null, 2)}</pre>`;
      } else if (typeof v === "boolean") {
        val = `<span class="badge badge-xs ${v ? "badge-success" : "badge-ghost"}">${v}</span>`;
      } else {
        val = `<span class="text-base-content/80">${v}</span>`;
      }
      return `<div><p class="text-xs font-semibold text-base-content/40 uppercase tracking-wide mb-0.5">${label}</p>${val}</div>`;
    })
    .filter(Boolean)
    .join("");
}

// ── Open ADR in panel ─────────────────────────────────────────
async function openAdr(id, { push = true } = {}) {
  panel.classList.remove("hidden");
  showContentView("Architecture Decision Record");
  dName.textContent    = id;
  dContentBody.innerHTML = `<span class="loading loading-spinner loading-sm"></span>`;

  const params = new URLSearchParams({ ...(GRAPH_SLUG ? { slug: GRAPH_SLUG } : {}) });
  try {
    const res  = await fetch(`/api/adr/${encodeURIComponent(id)}?${params}`);
    const data = await res.json();
    dContentBody.innerHTML = data.error
      ? `<p class="text-error text-sm">${esc(data.error)}</p>`
      : renderKvSection(data, ["id"]) || `<p class="text-base-content/50 text-sm">No details.</p>`;
  } catch (err) {
    dContentBody.innerHTML = `<p class="text-error text-sm">Failed: ${esc(String(err))}</p>`;
  }

  if (push) panelNav.push({ type: "adr", id });
}

// openFile is replaced by srcOpen — opens in repo/docs tab, no panel loading.

// ── Node-type extra sections in the side panel ────────────────
function renderNodeExtra(d) {
  const el = dExtra;
  el.innerHTML = "";
  el.classList.add("hidden");

  const sec = (label, content) =>
    `<div><p class="text-xs font-semibold text-base-content/40 uppercase tracking-wide mb-1">${label}</p>${content}</div>`;

  const badge = (text, color) =>
    `<span class="badge badge-xs" style="background:${color};color:#fff;border:none">${text}</span>`;

  let html = "";

  if (d.level === "Route") {
    const authColor = { none: "#6b7280", viewer: "#f59e0b", bearer: "#3b82f6", admin: "#ef4444" };
    const authBadge = badge(d.auth || "none", authColor[d.auth] || "#6b7280");
    const methodBadge = badge(d.method, "#10b981");
    html += sec("Endpoint",
      `<div class="flex flex-wrap gap-1">${methodBadge}${authBadge}` +
      (d.feature ? `<span class="badge badge-xs badge-outline">feature:${d.feature}</span>` : "") +
      `</div>`);
    if (d.actors?.length)
      html += sec("Actors", d.actors.map(a => `<span class="badge badge-xs badge-ghost">${a}</span>`).join(" "));
    if (d.tags?.length)
      html += sec("Tags", d.tags.map(t => `<code class="text-xs bg-base-300 px-1 rounded">${t}</code>`).join(" "));
    if (d.params?.length) {
      const rows = d.params.map(p =>
        `<li class="flex flex-wrap gap-1 items-baseline">` +
        `<code class="text-xs font-bold">${p.name}</code>` +
        `<span class="text-xs text-base-content/40">${p.kind}</span>` +
        `<span class="badge badge-xs badge-ghost">${p.constraint}</span>` +
        (p.description ? `<span class="text-xs text-base-content/50">— ${p.description}</span>` : "") +
        `</li>`
      ).join("");
      html += sec("Parameters", `<ul class="space-y-1">${rows}</ul>`);
    }

  } else if (d.level === "Dimension") {
    const reached = d.current_state && d.current_state === d.desired_state;
    const statusBadge = reached
      ? `<span class="badge badge-xs badge-success">reached</span>`
      : `<span class="badge badge-xs badge-warning">in progress</span>`;
    html += sec("FSM State",
      `<div class="space-y-1 text-xs">` +
      `<div class="flex gap-2 items-center">${statusBadge}<span class="badge badge-xs badge-ghost">${d.horizon}</span></div>` +
      `<div><span class="text-base-content/40">current: </span><code>${d.current_state}</code></div>` +
      `<div><span class="text-base-content/40">desired: </span><code>${d.desired_state}</code></div>` +
      `</div>`);

  } else if (d.level === "WorkspaceCrate") {
    if (d.features?.length)
      html += sec("Features", d.features.map(f =>
        `<span class="badge badge-xs badge-outline font-mono">${f}</span>`).join(" "));
    if (d.ws_deps?.length) {
      html += sec("Depends on",
        d.ws_deps.map(dep => {
          const depId = dep;
          const depNode = cy.nodes(`[id = "${depId}"]`);
          const label = depNode.length ? depNode.data("label") : depId.replace("ws:", "");
          return `<button class="node-jump-link badge badge-xs badge-ghost cursor-pointer" data-node-id="${depId}">${label}</button>`;
        }).join(" "));
    }

  } else if (d.level === "ConfigSection") {
    if (d.contract)
      html += sec("Contract",
        `<code class="text-xs bg-base-300 px-1.5 py-0.5 rounded">${d.contract}</code>`);

  } else if (d.level === "Requirement") {
    html += sec("Details",
      `<div class="flex flex-wrap gap-1">` +
      (d.env_kind   ? badge(d.env_kind,   "#6366f1") : "") +
      (d.env_target ? badge(d.env_target, "#8b5cf6") : "") +
      (d.required   ? `<span class="badge badge-xs badge-error">required</span>`
                    : `<span class="badge badge-xs badge-ghost">optional</span>`) +
      `</div>`);
  }

  if (html) {
    el.innerHTML = html;
    el.classList.remove("hidden");
  }
}

// ── Click delegation ──────────────────────────────────────────
document.addEventListener("click", e => {
  // Close search dropdown on outside click
  if (!e.target.closest("#search-wrap")) {
    searchDropdown.classList.add("hidden");
  }

  const adrBtn = e.target.closest(".adr-link");
  if (adrBtn) { openAdr(adrBtn.dataset.adr); return; }

  const artBtn = e.target.closest(".artifact-link");
  if (artBtn) { srcOpen(artBtn.dataset.path); return; }

  const jumpBtn = e.target.closest(".node-jump-link");
  if (jumpBtn) { openNode(jumpBtn.dataset.nodeId, { push: true, animate: true }); }
});

// ── Inline node search ────────────────────────────────────────
const graphSearch    = document.getElementById("graph-search");
const searchCount    = document.getElementById("search-count");
const searchDropdown = document.getElementById("search-dropdown");

let searchMatches = [];

function clearGraphSearch() {
  cy.nodes().removeClass("search-match search-dim");
  searchMatches = [];
  searchCount.textContent = "";
  searchDropdown.classList.add("hidden");
  searchDropdown.innerHTML = "";
}

function doGraphSearch(q) {
  clearGraphSearch();
  if (!q) return;
  const ql = q.toLowerCase();
  searchMatches = cy.nodes(":visible").filter(n =>
    (n.data("label")       || "").toLowerCase().includes(ql) ||
    (n.data("id")          || "").toLowerCase().includes(ql) ||
    (n.data("description") || "").toLowerCase().includes(ql)
  ).toArray();

  searchCount.textContent = `${searchMatches.length}`;

  if (searchMatches.length === 0) return;

  // Highlight in graph
  cy.nodes().addClass("search-dim");
  searchMatches.forEach(n => n.removeClass("search-dim").addClass("search-match"));

  // Dropdown list (cap 12)
  const shown = searchMatches.slice(0, 12);
  searchDropdown.innerHTML = shown.map((n, i) =>
    `<li class="search-hit cursor-pointer px-3 py-2 hover:bg-base-300 transition-colors flex items-center gap-2" data-idx="${i}">` +
    `<span class="badge badge-xs flex-shrink-0" style="background:${n.data("color")};border:none;color:#fff">${esc(n.data("level"))}</span>` +
    `<span class="truncate">${esc(n.data("label"))}</span>` +
    `</li>`
  ).join("");
  if (searchMatches.length > 12) {
    searchDropdown.innerHTML +=
      `<li class="px-3 py-1.5 text-xs text-base-content/40">+${searchMatches.length - 12} more…</li>`;
  }
  searchDropdown.classList.remove("hidden");
}

graphSearch.addEventListener("input", () => {
  const q = graphSearch.value.trim();
  if (!q) { clearGraphSearch(); return; }
  doGraphSearch(q);
});

graphSearch.addEventListener("keydown", e => {
  if (e.key === "Escape")  { graphSearch.value = ""; clearGraphSearch(); e.preventDefault(); return; }
  if (e.key === "Enter" && searchMatches.length > 0) {
    openNode(searchMatches[0].data("id"));
    searchDropdown.classList.add("hidden");
    e.preventDefault();
  }
});

searchDropdown.addEventListener("click", e => {
  const li = e.target.closest(".search-hit");
  if (!li) return;
  openNode(searchMatches[parseInt(li.dataset.idx, 10)].data("id"));
  searchDropdown.classList.add("hidden");
});

// ── URL param auto-open ───────────────────────────────────────
const urlNode = new URLSearchParams(location.search).get("node");
if (urlNode) {
  cy.ready(() => {
    // Wait for layout to finish before centering
    setTimeout(() => openNode(urlNode, { push: true, animate: true }), 600);
  });
}

// ── Keyboard shortcuts ────────────────────────────────────────
document.addEventListener('keydown', e => {
  const tag = document.activeElement?.tagName;
  if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT') return;
  if (document.querySelector('dialog[open]')) return;

  switch (e.key) {
    case 'f':
    case 'F':
      e.preventDefault();
      cy.animate({ fit: { eles: cy.elements(':visible'), padding: 48 } }, { duration: 350, easing: 'ease-in-out-cubic' });
      break;
    case '+':
    case '=':
      e.preventDefault();
      zoomAt(1.35);
      break;
    case '-':
      e.preventDefault();
      zoomAt(1 / 1.35);
      break;
    case 'g':
    case 'G':
      e.preventDefault();
      btnFullscreen.click();
      break;
    case 'Escape':
      // Only close panel; fullscreen exit is handled natively by the browser
      if (!isFullscreen() && !panel.classList.contains('hidden')) {
        e.preventDefault();
        closePanel();
      }
      break;
  }
});
</script>
{% endblock scripts %}