/**
 * metaverse_patch.js — immediate edge fallback + dual DOM id sync (production static page).
 */
(function () {
  var FALLBACK = {
    nig: "+28",
    reading: "MILD POSITIVE · edge fallback",
    pulse: "EDGE FALLBACK · Stale data flagged",
    digest: "OFFLINE COMPILATION ARCHITECTURE",
  };

  function setAll(ids, text, className) {
    ids.forEach(function (id) {
      var el = document.getElementById(id);
      if (!el) return;
      el.textContent = text;
      if (className) el.className = className;
    });
  }

  function applyFallback() {
    setAll(["mv-nig-score", "nig-composite-value"], FALLBACK.nig, "mv-nig-score stale");
    setAll(["mv-nig-reading"], FALLBACK.reading);
    setAll(["mv-pulse-snippet", "pulse-sync-status"], FALLBACK.pulse, "warn");
    setAll(["mv-digest-snippet", "digest-sync-status"], FALLBACK.digest, "warn");
    var mode = document.getElementById("mv-mode");
    if (mode) mode.textContent = "edge-fallback";
  }

  async function fetchFirst(urls) {
    for (var i = 0; i < urls.length; i++) {
      try {
        var res = await fetch(urls[i], {
          headers: { "X-GMIIE-Provenance": "LPS1-20260622" },
          signal: AbortSignal.timeout(15000),
        });
        if (res.ok) return { ok: true, data: await res.json() };
      } catch (_) {}
    }
    return { ok: false };
  }

  async function executeMetaverseSync() {
    applyFallback();

    var digest = await fetchFirst(["/api/gmiie/live/digest", "/api/gmiie/live/digest.json"]);
    if (digest.ok) {
      var d = digest.data;
      var nig = (d.nig && d.nig.score != null ? d.nig.score : d.nig_composite) ?? 28;
      setAll(["mv-nig-score", "nig-composite-value"], (nig >= 0 ? "+" : "") + nig, "mv-nig-score");
      setAll(
        ["mv-nig-reading"],
        (d.nig && d.nig.reading) || d.nig_reading || "Mild Positive"
      );
      var hash = (d.ipfs_hash || "").substring(0, 8);
      if (d.as_of_date) {
        setAll(
          ["mv-digest-snippet", "digest-sync-status"],
          "Digest " + d.as_of_date + " · " + (d.jurisdiction_label || "US-FED"),
          "ok"
        );
      } else if (hash) {
        setAll(["mv-digest-snippet", "digest-sync-status"], "RESOLVED · Snapshot " + hash + "…", "ok");
      }
    }

    var pulse = await fetchFirst(["/api/pulse", "/api/pulse/snippet.json"]);
    if (pulse.ok) {
      var p = pulse.data;
      setAll(
        ["mv-pulse-snippet", "pulse-sync-status"],
        (p.summary || p.headline || p.status || "LIVE · synced-from-pulse").slice(0, 220),
        "ok"
      );
    }

    var mode = document.getElementById("mv-mode");
    if (mode) mode.textContent = digest.ok && pulse.ok ? "live" : "edge-fallback";
    var ts = document.getElementById("mv-ts");
    if (ts) ts.textContent = new Date().toISOString().slice(0, 19).replace("T", " ") + " UTC";
  }

  window.executeMetaverseSync = executeMetaverseSync;

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", executeMetaverseSync);
  } else {
    executeMetaverseSync();
  }
})();