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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Holographic Estate — a11oy</title>
<!-- 0 runtime CDN. All 3D libs vendored in-image and served same-origin via the
     /static/3d/vendor/... importmap below (see VENDOR_MANIFEST.md). System fonts only. -->
<script type="importmap">
{
  "imports": {
    "three": "/static/3d/vendor/three/three.module.min.js",
    "three/webgpu": "/static/3d/vendor/three/three.webgpu.min.js",
    "three/addons/": "/static/3d/vendor/three/addons/"
  }
}
</script>
<style>
 :root{--bg:#05070d;--panel:#0b121b;--line:#1b2734;--teal:#39d3c4;--gold:#e8c074;--cream:#eef3f6;--para:#9fb1bf;}
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  text-align:center;color:var(--para);padding:24px;font:13px ui-monospace,monospace}
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 a{color:var(--teal);text-decoration:none}
</style>
</head>
<body>
<header>
 <h1>◇ Holographic Estate</h1>
 <span class="badge" id="backend">renderer: …</span>
 <span class="badge">three r<span id="three-rev">…</span></span>
 <span class="badge">0 runtime CDN</span>
 <span class="badge">Λ = Conjecture 1</span>
 <a href="/" style="margin-left:auto;font:11px ui-monospace,monospace">← a11oy</a>
</header>
<div class="tabs" id="tabs" role="tablist"></div>
<div id="stage-wrap">
 <div id="stage"></div>
 <div id="fallback">3D unavailable on this device — the holographic estate needs a WebGL2 or WebGPU canvas.<br>
  All underlying data is still available as JSON at the per-surface endpoints.</div>
</div>
<footer>Doctrine v11 · locked = 8 @ c7c0ba17 · Λ = Conjecture 1 · Khipu BFT = Conjecture 2 ·
 shared szl3d toolkit (Dev0) · every value carries its honesty label · trust &lt; 100%</footer>

<script type="module">
import szl3d from "/static/3d/szl3d/szl3d_boot.js";
import * as live from "/static/3d/szl3d/szl3d_live.js";
import * as label from "/static/3d/szl3d/szl3d_label.js";
import * as THREE from "three";

// The 9 surface slots the other devs fill. Lazy-loaded per tab.
const SURFACES = [
  { id: "energy",      title: "Energy",      mod: "/static/3d/surfaces/energy.js" },
  { id: "fabric",      title: "Fabric",      mod: "/static/3d/surfaces/fabric.js" },
  { id: "pnt",         title: "PNT",         mod: "/static/3d/surfaces/pnt.js" },
  { id: "counter-uas", title: "Counter-UAS", mod: "/static/3d/surfaces/counter-uas.js" },
  { id: "governance",  title: "Governance",  mod: "/static/3d/surfaces/governance.js" },
  { id: "pinn",        title: "PINN",        mod: "/static/3d/surfaces/pinn.js" },
  { id: "router",      title: "Router",      mod: "/static/3d/surfaces/router.js" },
  { id: "anatomy",     title: "Anatomy",     mod: "/static/3d/surfaces/anatomy.js" },
  { id: "estate",      title: "Estate",      mod: "/static/3d/surfaces/estate.js" },
];

const stageEl = document.getElementById("stage");
const tabsEl = document.getElementById("tabs");
const fallbackEl = document.getElementById("fallback");
document.getElementById("three-rev").textContent = THREE.REVISION;

let stage = null;
let current = null;       // { def, instance }
let loadToken = 0;

async function ensureStage() {
  if (stage) return stage;
  try {
    // Default to the proven WebGL2 path (matches /estate-hologram). WebGPU is not
    // production-safe across all browsers/drivers yet (doctrine) and the bloom pass
    // is WebGL2-only, so the shell stays on WebGL2 unless explicitly opted in with
    // ?webgpu=1. The toolkit's WebGPU probe is timeout-guarded either way.
    const wantWebGPU = /[?&]webgpu=1\b/.test(location.search);
    stage = await szl3d.boot(stageEl, {
      bloom: { strength: 0.85, radius: 0.5, threshold: 0.18 },
      cameraPos: [0, 5, 16],
      forceWebGL: !wantWebGPU,
    });
    document.getElementById("backend").textContent = "renderer: " + stage.backend.toUpperCase();
    stage.start();
  } catch (e) {
    fallbackEl.style.display = "flex";
    document.getElementById("backend").textContent = "renderer: UNAVAILABLE";
    console.error("[holographic] stage boot failed:", e);
    throw e;
  }
  return stage;
}

function clearScene() {
  if (!stage) return;
  // Remove everything the previous surface added except the default lights.
  const keep = new Set();
  stage.scene.traverse((o) => { if (o.isLight) keep.add(o); });
  for (let i = stage.scene.children.length - 1; i >= 0; i--) {
    const o = stage.scene.children[i];
    if (!keep.has(o)) stage.scene.remove(o);
  }
  // reset per-frame callbacks by re-booting frame list is overkill; surfaces guard on null.
}

async function selectSurface(id) {
  const def = SURFACES.find((s) => s.id === id);
  if (!def) return;
  const token = ++loadToken;
  // visual selection state
  [...tabsEl.children].forEach((t) => t.setAttribute("aria-selected", String(t.dataset.id === id)));

  await ensureStage();
  // tear down previous
  if (current && current.instance && current.instance.unmount) {
    try { current.instance.unmount(); } catch (_) {}
  }
  clearScene();

  let mod;
  try { mod = await import(def.mod); }
  catch (e) { console.error("[holographic] failed to load surface", id, e); return; }
  if (token !== loadToken) return; // a newer tab click superseded us

  const surface = mod.default || mod;
  const ctx = { stage, container: stageEl, live, label, THREE, szl3d };
  try {
    surface.mount(ctx);
    current = { def, instance: surface };
    history.replaceState(null, "", "#" + id);
  } catch (e) {
    console.error("[holographic] surface mount threw", id, e);
  }
}

// build tabs
SURFACES.forEach((s) => {
  const b = document.createElement("button");
  b.className = "tab"; b.textContent = s.title; b.dataset.id = s.id;
  b.setAttribute("role", "tab"); b.setAttribute("aria-selected", "false");
  b.addEventListener("click", () => selectSurface(s.id));
  tabsEl.appendChild(b);
});

// expose a tiny API for the selftest harness to drive the shell headlessly.
window.__SZL3D_SHELL__ = {
  surfaces: SURFACES,
  select: selectSurface,
  get stage() { return stage; },
  get current() { return current; },
  ensureStage,
};

// initial surface from hash or default to energy
const initial = (location.hash || "").replace("#", "");
selectSurface(SURFACES.some((s) => s.id === initial) ? initial : "energy");
</script>
</body>
</html>