"use strict";
/* Gold Desk — XAU/USD dashboard frontend
 *
 * Reads snapshot.json + news.json published by dashboard_publisher.py and
 * renders a responsive, keyboard-accessible dashboard. Uses Bootstrap 5 for
 * layout/components/modals and a small custom CSS file for app-specific
 * visuals (score bar, signal colours, mono fonts).
 *
 * This file is intentionally self-contained: it mirrors a few constants from
 * the Python signal pipeline so the HTML does not depend on telegram_bot.
 */

const IND_ORDER = ["ema_trend", "rsi", "macd", "bollinger", "adx", "roc", "keltner", "divergence", "candlestick"];
const IND_SHORT = {
  ema_trend: "EMA", rsi: "RSI", macd: "MACD", bollinger: "BB",
  adx: "ADX", roc: "ROC", keltner: "KC", divergence: "Div", candlestick: "Cndl"
};
const ARROW = { STRONG_BUY: "⇈", BUY: "↑", NEUTRAL: "→", SELL: "↓", STRONG_SELL: "⇊" };
const TF_LABEL = { "5min": "M5", "15min": "M15", "1h": "H1", "4h": "H4" };
const TF_ORDER = ["5min", "15min", "1h", "4h"];
const TF_SECONDS = { "5min": 300, "15min": 900, "1h": 3600, "4h": 14400 };
const POLL_MS = 5000;

const LEVEL_LABEL = {
  ema_fast: "EMA fast", ema_medium: "EMA medium", ema_slow: "EMA slow", ema_trend: "EMA trend",
  bb_upper: "Bollinger upper", bb_mid: "Bollinger mid", bb_lower: "Bollinger lower",
  kc_upper: "Keltner upper", kc_mid: "Keltner mid", kc_lower: "Keltner lower",
  swing_high_1: "Swing high 1", swing_high_2: "Swing high 2", swing_high_3: "Swing high 3",
  swing_low_1: "Swing low 1", swing_low_2: "Swing low 2", swing_low_3: "Swing low 3"
};

let snapshot = null, news = null;
let clockOffset = 0;
let lastPollOk = null;
let lastSnapText = null, lastNewsText = null;
let refetchTimer = null;

let detailTf = null;
let ndState = null;
const aiMemo = new Map();
const aiErr = new Map();
const aiPending = new Set();

let tfModal = null;
let newsModal = null;

const $ = id => document.getElementById(id);

/* ── helpers ──────────────────────────────────────────────────── */
const esc = s => String(s ?? "").replace(/[&<>"']/g,
  c => ({"&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;"}[c]));

const fmt$ = v => v == null ? "—" : Number(v).toLocaleString("en-US",
  { minimumFractionDigits: 2, maximumFractionDigits: 2 });

const sigClass = s => s?.includes("BUY") ? "buy" : s?.includes("SELL") ? "sell" : "neutral";
const sigLabel = s => (s || "NEUTRAL").replace("_", " ");
const nowServer = () => Date.now() / 1000 + clockOffset;

function fmtCountdown(secs) {
  if (secs == null || !isFinite(secs)) return "--:--";
  secs = Math.max(0, Math.floor(secs));
  const h = Math.floor(secs / 3600), m = Math.floor((secs % 3600) / 60), s = secs % 60;
  const mm = String(m).padStart(2, "0"), ss = String(s).padStart(2, "0");
  return h > 0 ? `${h}:${mm}:${ss}` : `${mm}:${ss}`;
}

function fmtAge(iso) {
  if (!iso) return "";
  const secs = nowServer() - Date.parse(iso) / 1000;
  if (secs < 90) return `${Math.max(0, Math.round(secs))}s ago`;
  if (secs < 5400) return `${Math.round(secs / 60)}m ago`;
  if (secs < 172800) return `${Math.round(secs / 3600)}h ago`;
  return `${Math.round(secs / 86400)}d ago`;
}

const signed = (v, dp = 2) => v == null ? "—" : (v >= 0 ? "+" : "") + Number(v).toFixed(dp);
const badgeCls = s => s === "buy" ? "bg-success-subtle text-success-emphasis border-success-subtle"
                 : s === "sell" ? "bg-danger-subtle text-danger-emphasis border-danger-subtle"
                 : "bg-secondary-subtle text-secondary-emphasis border-secondary-subtle";

/* ── theme ────────────────────────────────────────────────────── */
// Dark theme is forced site-wide (owner decision 2026-08-16): dark
// background, pure-white text, red/green data accents.
document.documentElement.setAttribute("data-bs-theme", "dark");

/* ── hero ─────────────────────────────────────────────────────── */
function renderHero() {
  if (!snapshot) return;
  let price = null;
  for (const tf of TF_ORDER) {
    const p = snapshot.timeframes[tf]?.report?.current_price;
    if (p) { price = p; break; }
  }
  $("hero-price").textContent = price ? fmt$(price) : "—";

  $("hero-rail").innerHTML = TF_ORDER.map(tf => {
    const r = snapshot.timeframes[tf]?.report;
    const sig = r?.signal || null;
    const cls = sigClass(sig);
    const arrow = sig ? (ARROW[sig] || "→") : "·";
    const score = r?.score != null ? r.score.toFixed(0) : "–";
    const textColor = cls === "buy" ? "text-success" : cls === "sell" ? "text-danger" : "text-secondary";
    return `<span class="rail-chip badge border ${badgeCls(cls)}" data-tf="${tf}" tabindex="0"
      role="button" aria-haspopup="dialog"
      title="${esc(sigLabel(sig))} (score ${esc(score)}) — click for full ${TF_LABEL[tf]} detail">
      <span class="tf-name">${TF_LABEL[tf]}</span>
      <span class="${textColor} fw-bold">${arrow}</span>
      <span>${esc(score)}</span>
    </span>`;
  }).join("");

  const closed = snapshot.market_closed;
  $("hero-status").innerHTML =
    `<span class="live-dot${closed ? " closed" : ""}"></span>${closed ? "CLOSED" : "OPEN"}`;
  $("banner-closed").classList.toggle("d-none", !closed);
}

/* ── market context strip ─────────────────────────────────────── */
function renderContext() {
  if (!news) return;
  $("context").classList.remove("d-none");
  $("ctx-blurb").innerHTML = news.llm_summary
    ? `<strong>Market context:</strong> ${esc(news.llm_summary)}`
    : `<strong>Market context:</strong> <span class="text-secondary">no summary available</span>`;

  let chips = "";
  for (const cur of ["XAU", "USD"]) {
    const v = news.sentiment?.[cur];
    if (v == null) continue;
    const cls = v > 0.05 ? "text-bg-success" : v < -0.05 ? "text-bg-danger" : "text-bg-secondary";
    chips += `<span class="badge ${cls}" title="Mean headline sentiment for ${cur} (−1…+1)">
      ${cur} news <span class="num">${v >= 0 ? "+" : ""}${v.toFixed(2)}</span></span>`;
  }
  let risk = "clear", riskDesc = "No significant events";
  if (snapshot) {
    for (const tf of TF_ORDER) {
      const r = snapshot.timeframes[tf]?.report;
      if (r?.event_risk && r.event_risk !== "clear") { risk = r.event_risk; riskDesc = r.event_description; break; }
      if (r?.event_description) riskDesc = r.event_description;
    }
  }
  if (news.high_impact_warning) { risk = "danger"; riskDesc = news.warning_message || riskDesc; }
  const riskCls = risk === "clear" ? "text-bg-success"
                : risk === "danger" ? "text-bg-danger"
                : "text-bg-warning";
  chips += `<span class="badge ${riskCls}" title="${esc(riskDesc)}">event risk: ${risk.toUpperCase()}</span>`;
  $("ctx-chips").innerHTML = chips;
}

/* ── timeframe cards ──────────────────────────────────────────── */
function scoreBar(label, score) {
  const v = Math.max(-100, Math.min(100, score ?? 0));
  return `<div class="scorebar">
    <span class="lbl">${label}</span>
    <div class="gauge-container" data-label="${label}" data-score="${v}"></div>
    <span class="val num ${v > 0 ? "text-success" : v < 0 ? "text-danger" : ""}">${v >= 0 ? "+" : ""}${v.toFixed(1)}</span>
  </div>`;
}

function setupCard(ts) {
  if (!ts) return "";
  const dir = ts.direction === "BUY" ? "buy" : "sell";
  const dirIcon = ts.direction === "BUY" ? "bi-arrow-up-circle-fill" : "bi-arrow-down-circle-fill";
  const trail = (ts.trail_arm_r != null && ts.trail_dist_r != null)
    ? `arm ${ts.trail_arm_r}R · dist ${ts.trail_dist_r}R` : "platform default";
  return `<div class="card border-signal sig-${dir} bg-body-tertiary">
    <div class="card-body py-2 px-3">
      <div class="d-flex align-items-baseline gap-2 mb-2">
        <span class="fw-bold text-signal sig-${dir}"><i class="bi ${dirIcon} me-1"></i>${ts.direction}</span>
        <span class="small text-secondary font-monospace">${esc(ts.strategy || "")}</span>
        <span class="small text-secondary ms-auto font-monospace">R:R ${(+ts.risk_reward).toFixed(1)}</span>
      </div>
      <table class="table table-sm table-borderless mb-0">
        <tr><td class="text-secondary"><i class="bi bi-box-arrow-in-right me-1"></i>Entry</td><td class="num">${fmt$(ts.entry)}</td>
            <td class="text-secondary ps-4"><i class="bi bi-flag-fill me-1 text-success"></i>TP1</td><td class="num text-success">${fmt$(ts.take_profit_1)}</td></tr>
        <tr><td class="text-secondary"><i class="bi bi-shield-x me-1 text-danger"></i>Stop</td><td class="num text-danger">${fmt$(ts.stop_loss)}</td>
            <td class="text-secondary ps-4"><i class="bi bi-flag-fill me-1 text-success"></i>TP2</td><td class="num text-success">${fmt$(ts.take_profit_2)}</td></tr>
        <tr><td class="text-secondary"><i class="bi bi-signpost-split me-1"></i>Trail</td><td class="num" colspan="3">${esc(trail)}</td></tr>
      </table>
    </div>
  </div>`;
}

function renderCards() {
  if (!snapshot) return;
  $("tf-grid").innerHTML = TF_ORDER.map(tf => {
    const entry = snapshot.timeframes[tf] || {};
    const r = entry.report;
    const scls = r ? sigClass(r.signal) : "neutral";
    const open = `<article class="col-12 col-md-6 col-xl-3"><div class="card tf-card h-100 sig-${scls} border-signal" data-tf="${tf}" tabindex="0" role="button" aria-haspopup="dialog" aria-label="${TF_LABEL[tf]} timeframe — open full detail"><div class="card-body d-flex flex-column gap-2">`;
    const foot = `<div class="mt-auto pt-2 border-top d-flex justify-content-between small text-secondary">
      <span>${entry.scanned_at ? "scanned " + fmtAge(entry.scanned_at) : ""}</span>
      <span>closes in <span class="num" data-close="${entry.next_close_epoch || ""}" data-interval="${TF_SECONDS[tf]}">--:--</span></span>
    </div>`;
    if (!r) {
      return `${open}
        <div class="d-flex align-items-center gap-2 flex-wrap">
          <span class="tf-name">${TF_LABEL[tf]}</span>
          <span class="ms-auto small text-primary fw-semibold">details ›</span>
        </div>
        <div class="text-center text-secondary py-3">${entry.status === "error"
          ? `<span class="badge text-bg-danger" title="${esc(entry.error || "")}">SCAN ERROR</span>`
          : "warming up…"}</div>
      </div></div></article>`;
    }
    const pa = r.primary_analysis;
    const qHi = r.quality === "A+" || r.quality === "A";
    const meta = [r.market_regime, r.volatility_regime && r.volatility_regime + " vol",
      r.mtf_agreement ? "MTF aligned" : "MTF mixed"].filter(Boolean).join(" · ");
    return `${open}
      <div class="d-flex align-items-center gap-2 flex-wrap">
        <span class="tf-name">${TF_LABEL[tf]}</span>
        <span class="badge ${badgeCls(scls)}">${sigLabel(r.signal)}</span>
        ${r.quality ? `<span class="badge ${qHi ? "text-bg-primary" : "text-bg-secondary"}" title="Signal quality grade">${r.quality}</span>` : ""}
        <span class="ms-auto small text-primary fw-semibold">details ›</span>
      </div>
      ${entry.status === "error" ? `<span class="badge text-bg-danger" title="${esc(entry.error || "")} — showing last good scan">STALE</span>` : ""}
      ${scoreBar("score", pa ? pa.composite_score : r.score)}
      <div class="small text-secondary">${esc(meta)}</div>
      ${foot}
    </div></div></article>`;
  }).join("");
}

/* ── timeframe detail dialog ──────────────────────────────────── */
const tile = (k, v, cls = "") =>
  `<div class="col"><div class="card bg-body-tertiary h-100"><div class="card-body p-2">
    <span class="k">${esc(k)}</span>
    <span class="v ${cls}">${v}</span>
  </div></div></div>`;

const SEC_ICON = {
  "At a glance": "bi-speedometer2",
  "Trade setup": "bi-bullseye",
  "Why this signal": "bi-lightbulb",
  "Multi-timeframe confirmation": "bi-layers",
  "News context": "bi-newspaper",
  "AI panel (advisory)": "bi-robot",
  "Scan detail": "bi-clock-history",
  "Score": "bi-graph-up",
  "From the source": "bi-quote",
  "AI gold-impact summary": "bi-stars",
  "Timing": "bi-alarm",
  "Numbers": "bi-calculator"
};
const sec = (title, html) => {
  if (!html) return "";
  const icon = SEC_ICON[title];
  return `<section class="mb-4"><h6 class="text-uppercase text-secondary small fw-bold mb-2 d-flex align-items-center gap-2">${icon ? `<i class="bi ${icon} text-primary"></i>` : ""}<span>${esc(title)}</span><span class="flex-fill border-bottom"></span></h6>${html}</section>`;
};

function indTable(src) {
  const rows = IND_ORDER.map(name => {
    const i = src?.[name];
    const k = `<td class="ind-k">${IND_SHORT[name]}</td>`;
    if (!i) return `<tr>${k}<td class="text-secondary">— absent</td>
      <td class="num text-end">—</td><td class="num text-end">—</td><td class="num text-end">—</td>
      <td class="text-secondary small">no signal this scan</td></tr>`;
    const w = i.weight == null ? null : +i.weight;
    return `<tr>${k}
      <td class="fw-bold ${sigClass(i.signal) === "buy" ? "text-success" : sigClass(i.signal) === "sell" ? "text-danger" : "text-secondary"}">${esc(sigLabel(i.signal))}</td>
      <td class="num text-end">${i.value != null ? (+i.value).toFixed(2) : "—"}</td>
      <td class="num text-end">${i.confidence != null ? Math.round(i.confidence) : "—"}</td>
      <td class="num text-end">${w != null ? w.toFixed(1) : "—"}${w != null
        ? `<i class="wbar"><i style="width:${Math.min(100, w / 2 * 100)}%"></i></i>` : ""}</td>
      <td class="text-secondary small">${esc(i.description || "")}</td></tr>`;
  }).join("");
  return `<table class="table table-sm d-table"><thead><tr>
    <th>Indicator</th><th>Signal</th><th class="text-end">Value</th><th class="text-end">Conf</th>
    <th class="text-end">Weight</th><th>Reading</th></tr></thead><tbody>${rows}</tbody></table>`;
}

function ladder(levels, price) {
  if (!levels) return "";
  const atr = levels.atr;
  const rows = Object.keys(LEVEL_LABEL)
    .filter(k => levels[k] != null)
    .map(k => ({ label: LEVEL_LABEL[k], v: +levels[k] }));
  if (!rows.length) return "";
  if (price != null) rows.push({ here: true, v: +price });
  rows.sort((a, b) => b.v - a.v);
  const body = rows.map(row => {
    if (row.here) return `<tr class="table-primary fw-bold"><td>current price</td>
      <td class="num text-end">${fmt$(row.v)}</td><td class="num text-end">—</td><td class="small text-secondary">spot</td></tr>`;
    const d = price != null ? row.v - price : null;
    return `<tr class="${d == null ? "" : d > 0 ? "text-danger" : "text-success"}">
      <td class="text-secondary">${esc(row.label)}</td>
      <td class="num text-end">${fmt$(row.v)}</td>
      <td class="num text-end">${d == null ? "" : signed(d) + (atr ? ` · ${signed(d / atr, 2)} ATR` : "")}</td>
      <td class="small text-secondary">${d == null ? "" : d > 0 ? "resistance" : "support"}</td></tr>`;
  }).join("");
  return `<table class="table table-sm ladder"><thead><tr><th>Level</th><th class="text-end">Price</th>
    <th class="text-end">vs. spot</th><th>Role</th></tr></thead><tbody>${body}</tbody></table>`;
}

function analysisBlock(a, price) {
  if (!a) return "";
  const pats = a.pattern_signals?.length
    ? `<div class="d-flex flex-wrap gap-1 mb-2">${a.pattern_signals.map(p =>
        `<span class="badge text-bg-primary bg-opacity-10">${esc(p)}</span>`).join("")}</div>` : "";
  const atr = a.atr_context
    ? `<div class="small text-secondary mb-2">${esc(a.atr_context.description ||
        "ATR " + (+a.atr_context.value).toFixed(2))}</div>` : "";
  const lv = ladder(a.key_levels, price);
  return indTable(a.indicators) + atr + pats +
    (lv ? `<div class="small text-secondary fw-semibold mt-2 mb-1">Key levels</div>${lv}` : "");
}

function listBlock(r) {
  const group = (title, arr, cls, icon) => arr?.length
    ? `<div class="small text-secondary fw-semibold mt-2 mb-1">${title} (${arr.length})</div>
       <div class="small">${arr.map(t => `<div class="${cls}"><i class="bi ${icon} me-1"></i>${esc(t)}</div>`).join("")}</div>` : "";
  return group("Warnings", r.warnings, "text-warning", "bi-exclamation-triangle-fill")
       + group("Bullish", r.bullish_reasons, "text-success", "bi-arrow-up-circle-fill")
       + group("Bearish", r.bearish_reasons, "text-danger", "bi-arrow-down-circle-fill");
}

function detailHTML(tf) {
  const entry = snapshot?.timeframes?.[tf] || {};
  const r = entry.report;
  if (!r) return `<div class="text-center text-secondary py-4">${entry.status === "error"
    ? `Scan error — ${esc(entry.error || "unknown")}`
    : "Warming up — no completed scan for this timeframe yet."}</div>`;

  const pa = r.primary_analysis;
  const price = r.current_price;
  const cls = sigClass(r.signal);
  const textCls = cls === "buy" ? "text-success" : cls === "sell" ? "text-danger" : "text-secondary";
  const borderCls = cls === "buy" ? "border-start border-success border-4"
                  : cls === "sell" ? "border-start border-danger border-4"
                  : "border-start border-secondary border-4";

  let out = `<div class="card ${borderCls} mb-3"><div class="card-body">
    <div class="fw-bold fs-5 ${textCls}">${esc(r.action || sigLabel(r.signal))}</div>
    ${r.news_description || r.event_description
      ? `<div class="small text-secondary">${esc([r.event_description, r.news_description].filter(Boolean).join(" · "))}</div>`
      : ""}
  </div></div>`;

  const ns = r.news_sentiment;
  out += sec("At a glance", `<div class="row row-cols-2 row-cols-md-3 row-cols-lg-4 g-2">
    ${tile("Signal", esc(sigLabel(r.signal)), textCls)}
    ${tile("Score", signed(r.score, 1), textCls)}
    ${tile("Confidence", r.confidence != null ? Math.round(r.confidence) + "%" : "—")}
    ${tile("Quality", esc(r.quality || "—"))}
    ${tile("Regime", esc(r.market_regime || "—"))}
    ${tile("Volatility", esc(r.volatility_regime || "—"))}
    ${tile("Event risk", esc((r.event_risk || "—").toUpperCase()),
        r.event_risk === "clear" ? "text-success" : r.event_risk ? "text-warning" : "")}
    ${tile("News sentiment", ns != null ? signed(ns, 2) : "—",
        ns > 0.05 ? "text-success" : ns < -0.05 ? "text-danger" : "")}
    ${tile("MTF", r.mtf_agreement ? "aligned" : "mixed", r.mtf_agreement ? "text-success" : "")}
    ${tile("Primary score", signed(r.primary_score, 1), sigClass(r.primary_signal) === "buy" ? "text-success" : sigClass(r.primary_signal) === "sell" ? "text-danger" : "")}
    ${tile("Exhaustion", esc(r.exhaustion_count ?? "—"), r.exhaustion_count ? "text-warning" : "")}
  </div>`);

  out += sec("Trade setup", r.trade_setup
    ? setupCard(r.trade_setup)
    : `<div class="text-secondary small">No setup published for this timeframe — the engine only emits entry/stop/target once a signal clears its quality gate.</div>`);

  out += sec("Why this signal", listBlock(r) || `<div class="text-secondary small">No reasons recorded on this scan.</div>`);

  out += sec(`${TF_LABEL[tf]} indicators (primary)`,
    analysisBlock(pa, price) || indTable(r.indicators) +
      (r.key_levels ? `<div class="small text-secondary fw-semibold mt-2 mb-1">Key levels</div>${ladder(r.key_levels, price)}` : ""));

  const mtf = Object.entries(r.mtf_signals || {});
  if (mtf.length) {
    const chips = mtf.map(([k, sig]) => {
      const s = r.mtf_scores?.[k];
      const sc = sigClass(sig);
      return `<span class="badge ${badgeCls(sc)}">${esc(TF_LABEL[k] || k)}
        <span class="${sc === "buy" ? "text-success" : sc === "sell" ? "text-danger" : "text-secondary"}">${esc(sigLabel(sig))}</span>
        <span class="num">${s != null ? signed(s, 1) : ""}</span></span>`;
    }).join("");
    const confs = (r.confirmation_analyses || []).filter(Boolean).map(a => {
      const lbl = TF_LABEL[a.timeframe] || a.timeframe;
      const sc = sigClass(a.composite_signal);
      return `<details data-dkey="conf-${esc(a.timeframe)}">
        <summary><strong>${esc(lbl)}</strong>
          <span class="${sc === "buy" ? "text-success" : sc === "sell" ? "text-danger" : "text-secondary"} fw-bold">${esc(sigLabel(a.composite_signal))}</span>
          <span class="text-secondary small">${signed(a.composite_score, 1)} · conf ${a.confidence != null ? Math.round(a.confidence) : "—"} · ${esc(a.market_regime || "")}</span></summary>
        ${analysisBlock(a, price)}</details>`;
    }).join("");
    out += sec("Multi-timeframe confirmation",
      `<div class="d-flex flex-wrap gap-2 align-items-center mb-2">${chips}
        <span class="fw-bold ${r.mtf_agreement ? "text-success" : "text-secondary"}">${r.mtf_agreement ? "✓ aligned" : "✗ mixed"}</span></div>${confs}`);
  }

  if (r.news_summary || r.news_description) {
    out += sec("News context", `<div class="text-secondary small">
      ${r.news_description ? `<strong>${esc(r.news_description)}</strong>${ns != null ? ` (${signed(ns, 2)})` : ""}<br>` : ""}
      ${esc(r.news_summary || "")}</div>`);
  }

  if (r.panel_verdict) {
    const vcls = r.panel_verdict === "AGREE" ? "text-success"
      : r.panel_verdict === "OPPOSE" ? "text-danger" : "text-secondary";
    const takes = (r.panel_takes || []).map(t =>
      `<tr><td class="ind-k">${esc(t.persona)}</td>
        <td>${esc(t.stance)}</td>
        <td class="num text-end">${t.confidence != null ? Math.round(t.confidence) : "—"}</td>
        <td class="small text-secondary">${esc(t.note || "")}</td></tr>`).join("");
    out += sec("AI panel (advisory)", `<div class="text-secondary small mb-2">
      <strong class="${vcls}">${esc(r.panel_verdict)}</strong> ·
      conf ${Math.round(r.panel_confidence || 0)}%<br>
      ${esc(r.panel_rationale || "")}</div>
      ${takes ? `<table class="table table-sm d-table"><tbody>${takes}</tbody></table>` : ""}`);
  }

  out += sec("Scan detail", `<table class="table table-sm d-table"><tbody>
    <tr><td class="ind-k">Instrument</td><td colspan="5">${esc(r.display_name || r.symbol || "—")}</td></tr>
    <tr><td class="ind-k">Candle</td><td colspan="5" class="num">${esc(r.timestamp || "—")}</td></tr>
    <tr><td class="ind-k">Scanned</td><td colspan="5">${esc(entry.scanned_at || "—")}
      (${fmtAge(entry.scanned_at)}${entry.scan_seconds ? `, took ${entry.scan_seconds}s` : ""})</td></tr>
    <tr><td class="ind-k">Status</td><td colspan="5">${esc(entry.status || "—")}${entry.error
      ? ` — <span class="text-danger">${esc(entry.error)}</span>
          ${entry.error_at ? `(${fmtAge(entry.error_at)})` : ""}` : ""}</td></tr>
  </tbody></table>`);
  return out;
}

function renderDetail() {
  if (!detailTf || !tfModal._isShown) return;
  const entry = snapshot?.timeframes?.[detailTf] || {};
  const r = entry.report;
  const openKeys = new Set([...document.querySelectorAll("#detail-body details[open][data-dkey]")]
    .map(d => d.dataset.dkey));
  const scroll = $("detail-body").scrollTop;

  $("detail-title").textContent = TF_LABEL[detailTf] || detailTf;
  $("detail-price").textContent = r?.current_price ? fmt$(r.current_price) : "—";
  $("detail-sub").innerHTML = `${snapshot?.symbol ? esc(snapshot.symbol) + " · " : ""}closes in
    <span class="num" data-close="${entry.next_close_epoch || ""}" data-interval="${TF_SECONDS[detailTf]}">--:--</span>`;
  $("detail-body").innerHTML = detailHTML(detailTf);

  document.querySelectorAll("#detail-body details[data-dkey]").forEach(d => {
    if (openKeys.has(d.dataset.dkey)) d.open = true;
  });
  $("detail-body").scrollTop = scroll;
  tick();
}

function openDetail(tf) {
  if (!TF_LABEL[tf]) return;
  detailTf = tf;
  tfModal.show();
  renderDetail();
  $("detail-body").scrollTop = 0;
  $("detail-close").focus();
}

$("detail-close")?.addEventListener("click", () => tfModal.hide());
document.getElementById("tf-detail")?.addEventListener("hidden.bs.modal", () => { detailTf = null; });

function wireOpeners(host) {
  host.addEventListener("click", e => {
    if (e.target.closest("details, summary, a, input, button")) return;
    const el = e.target.closest("[data-tf]");
    if (el) openDetail(el.dataset.tf);
  });
  host.addEventListener("keydown", e => {
    if (e.key !== "Enter" && e.key !== " ") return;
    const el = e.target.closest?.("[data-tf]");
    if (!el || e.target !== el) return;
    e.preventDefault();
    openDetail(el.dataset.tf);
  });
}

/* ── calendar ─────────────────────────────────────────────────── */
function renderCalendar() {
  const body = $("cal-body");
  if (!news) return;
  const hiOnly = $("hi-only").checked;
  let events = (news.events || []);
  if (hiOnly) events = events.filter(e => e.impact === "high");
  if (!events.length) {
    body.innerHTML = `<tr><td colspan="7" class="text-secondary text-center py-3">${
      news.calendar_available ? "No matching events this week." : "Calendar unavailable — source could not be reached."}</td></tr>`;
    return;
  }
  const now = nowServer();
  let nextUpMarked = false, lastDay = "", rows = "";
  for (const e of events) {
    const t = Date.parse(e.time) / 1000;
    const d = new Date(t * 1000);
    const day = d.toLocaleDateString(undefined, { weekday: "short", month: "short", day: "numeric" });
    if (day !== lastDay) {
      rows += `<tr class="table-group-divider"><td colspan="7" class="text-primary small fw-bold text-uppercase">${esc(day)}</td></tr>`;
      lastDay = day;
    }
    const past = t < now;
    const nextUp = !past && !nextUpMarked && (nextUpMarked = true);
    const time = d.toLocaleTimeString(undefined, { hour: "2-digit", minute: "2-digit" });
    const surp = e.surprise
      ? `<span class="${e.surprise === "positive" ? "text-success" : e.surprise === "negative" ? "text-danger" : "text-secondary"}" title="actual ${e.surprise === "positive" ? "above" : e.surprise === "negative" ? "below" : "matches"} forecast (numeric only — not gold direction)">${e.surprise === "positive" ? "▲" : e.surprise === "negative" ? "▼" : "="}</span>` : "";
    rows += `<tr class="${past ? "text-secondary" : ""}${nextUp ? " cal-next-up" : ""}"
      data-ev-key="${esc(evKey(e))}" tabindex="0" role="button" aria-haspopup="dialog">
      <td class="num text-nowrap">${esc(time)}</td>
      <td class="text-secondary">${esc(e.currency)}</td>
      <td><span class="badge ${e.impact === "high" ? "text-bg-danger" : e.impact === "medium" ? "text-bg-warning" : "text-bg-secondary"}">${e.impact === "medium" ? "Med" : e.impact.charAt(0).toUpperCase() + e.impact.slice(1)}</span></td>
      <td>${esc(e.event)}</td>
      <td class="num text-end">${esc(e.forecast ?? "—")}</td>
      <td class="num text-end">${esc(e.previous ?? "—")}</td>
      <td class="num text-end">${esc(e.actual ?? "—")} ${surp}</td></tr>`;
  }
  body.innerHTML = rows;
}

/* ── newswire ─────────────────────────────────────────────────── */
function renderWireTotal() {
  const box = $("wire-total");
  const scored = (news?.headlines || []).filter(h => typeof h.score === "number");
  if (!scored.length) { box.classList.add("d-none"); return; }
  box.classList.remove("d-none");

  const sum = scored.reduce((a, h) => a + h.score, 0);
  const mean = sum / scored.length;
  const up = scored.filter(h => h.score > 0.05).length;
  const dn = scored.filter(h => h.score < -0.05).length;
  const cls = mean > 0.05 ? "text-success" : mean < -0.05 ? "text-danger" : "text-secondary";
  const dir = mean > 0.05 ? "BULLISH" : mean < -0.05 ? "BEARISH" : "NEUTRAL";
  const wrapCls = mean > 0.05 ? "bg-success-subtle border-success-subtle"
                : mean < -0.05 ? "bg-danger-subtle border-danger-subtle"
                : "bg-body-tertiary";

  box.className = `card mb-3 ${wrapCls}`;
  box.innerHTML = `<div class="card-body p-2">
    <div class="d-flex align-items-baseline gap-2 flex-wrap">
      <span class="small text-secondary text-uppercase fw-bold">Total news score</span>
      <span class="display-6 fw-bold ${cls}">${signed(mean, 2)}</span>
      <span class="fw-bold ${cls}">${dir}</span>
      <span class="ms-auto text-end small text-secondary">${scored.length} headlines · sum ${signed(sum, 1)}<br>
        ${up} bullish · ${dn} bearish · ${scored.length - up - dn} neutral</span>
    </div>
  </div>`;
  box.title = `Mean sentiment of all ${scored.length} scored headlines (−1…+1). Sum ${signed(sum, 1)}. Bullish/bearish counted at |score| > 0.05.`;
}

function renderWire() {
  if (!news) return;
  const items = (news.headlines || []).slice(0, 40);
  $("wire-note").textContent = news.generated_at ? `updated ${fmtAge(news.generated_at)}` : "";
  renderWireTotal();
  if (!items.length) {
    $("wire").innerHTML = `<div class="text-secondary small py-2">No recent gold/dollar headlines.</div>`;
    return;
  }
  const item = h => {
    const s = h.score;
    const cls = s == null || Math.abs(s) < 0.05 ? "zero" : s > 0 ? "pos" : "neg";
    const scoreCls = cls === "pos" ? "bg-success-subtle text-success"
                   : cls === "neg" ? "bg-danger-subtle text-danger"
                   : "bg-body-tertiary text-secondary";
    const scoreTxt = s == null ? "·" : (s > 0 ? "+" : "") + s.toFixed(1);
    let host = "";
    try { host = new URL(h.source).hostname.replace(/^www\./, ""); } catch {}
    const open = h.id ? ` data-news-id="${h.id}" tabindex="0" role="button" aria-haspopup="dialog"` : "";
    return `<div class="wire-item d-flex gap-2 align-items-baseline py-1 px-1"${open}>
      <span class="wire-score ${scoreCls}" title="Headline sentiment ${esc(String(s ?? "n/a"))} (−1…+1)${h.currencies?.length ? " · " + esc(h.currencies.join(", ")) : ""}">${scoreTxt}</span>
      <span class="small text-secondary flex-fill">${esc(h.headline)}</span>
      <span class="small text-secondary text-nowrap">${esc(h.publisher || host)}${h.timestamp ? " · " + fmtAge(h.timestamp) : ""}</span>
    </div>`;
  };
  const head = items.slice(0, 12).map(item).join("");
  const rest = items.slice(12);
  const moreOpen = $("wire")?.querySelector("details.more")?.open ?? false;
  $("wire").innerHTML = head + (rest.length
    ? `<details class="more mt-1"${moreOpen ? " open" : ""}><summary class="small text-secondary">${rest.length} more headlines…</summary>
       <div class="mt-1">${rest.map(item).join("")}</div></details>` : "");
}

/* ── news / calendar detail dialog ────────────────────────────── */
const evKey = e => `${e.time}|${e.currency}|${e.event}`;
const findHeadline = id => (news?.headlines || []).find(h => h.id === id);
const findEvent = key => (news?.events || []).find(e => evKey(e) === key);

const AI_ERR_MSG = {
  unknown_id: "This headline has left the live feed — no summary available.",
  cap_exceeded: "Daily AI budget reached — try again tomorrow.",
  no_key: "AI summaries are not configured on this server."
};

async function fetchAiSummary(id) {
  aiPending.add(id);
  try {
    const res = await fetch("news_summary.php?id=" + encodeURIComponent(id));
    const data = await res.json().catch(() => null);
    if (res.ok && data?.summary) aiMemo.set(id, data);
    else aiErr.set(id, data?.error || `http_${res.status}`);
  } catch {
    aiErr.set(id, "network");
  } finally {
    aiPending.delete(id);
    if (ndState?.kind === "wire" && ndState.id === id) renderNewsDlg();
  }
}

function scoreTiles(h) {
  const cls = v => v > 0.05 ? "text-success" : v < -0.05 ? "text-danger" : "text-secondary";
  let tiles = tile("Overall sentiment", signed(h.score, 2), cls(h.score));
  const xau = h.score_by_currency?.XAU;
  if (xau != null) tiles += tile("Gold (XAU) effect", signed(xau, 2), cls(xau));
  for (const [cur, v] of Object.entries(h.score_by_currency || {})) {
    if (cur !== "XAU") tiles += tile(cur, signed(v, 2), cls(v));
  }
  let out = `<div class="row row-cols-2 row-cols-md-3 g-2">${tiles}</div>`;
  if (h.keywords?.length) {
    out += `<div class="small text-secondary mt-2">Matched keywords: ${esc(h.keywords.join(", "))}</div>`;
  }
  out += `<div class="small text-secondary">Scores range −1 (bearish) to +1 (bullish); the gold score flips monetary-policy keywords (hawkish = dollar-bullish, gold-bearish).</div>`;
  return out;
}

function aiSection(id) {
  if (aiMemo.has(id)) {
    const m = aiMemo.get(id);
    return `<div class="text-secondary small">${esc(m.summary)}</div>` + (m.generated_at
      ? `<div class="small text-secondary">generated ${fmtAge(m.generated_at)}</div>` : "");
  }
  if (aiPending.has(id)) return `<div class="text-secondary small">Generating gold-impact summary…</div>`;
  if (aiErr.has(id)) {
    return `<div class="text-secondary small">${esc(AI_ERR_MSG[aiErr.get(id)] || "AI summary unavailable right now.")}</div>`;
  }
  return `<div class="text-secondary small">Generating gold-impact summary…</div>`;
}

function wireDlgHTML() {
  const fresh = findHeadline(ndState.id);
  const h = fresh || ndState.snap;
  if (!h) return "";
  let host = "";
  try { host = new URL(h.source).hostname.replace(/^www\./, ""); } catch {}
  const when = h.timestamp
    ? `${new Date(h.timestamp).toLocaleString(undefined, { dateStyle: "medium", timeStyle: "short" })} · ${fmtAge(h.timestamp)}` : "";
  let out = `<div class="fs-5 fw-semibold mb-1">${esc(h.headline)}</div>
    <div class="small text-secondary mb-3">${esc(h.publisher || host)}${when ? " · " + when : ""}</div>`;
  if (!fresh) out += `<div class="small text-secondary mb-2">No longer in the live feed — showing saved copy.</div>`;
  out += sec("Score", scoreTiles(h));
  if (h.description) out += sec("From the source", `<div class="text-secondary small">${esc(h.description)}</div>`);
  out += sec("AI gold-impact summary", aiSection(ndState.id));
  if (h.link && /^https?:\/\//.test(h.link)) {
    out += `<a class="btn btn-outline-primary" href="${esc(h.link)}" target="_blank" rel="noopener noreferrer">Read full article ↗</a>`;
  }
  return out;
}

function calDlgHTML() {
  const fresh = findEvent(ndState.key);
  const e = fresh || ndState.snap;
  if (!e) return "";
  const t = Date.parse(e.time) / 1000;
  const when = new Date(e.time).toLocaleString(undefined, { dateStyle: "full", timeStyle: "short" });
  const impact = `<span class="badge ${e.impact === "high" ? "text-bg-danger" : e.impact === "medium" ? "text-bg-warning" : "text-bg-secondary"}">${e.impact === "medium" ? "Med" : e.impact.charAt(0).toUpperCase() + e.impact.slice(1)}</span>`;
  let out = `<div class="fs-5 fw-semibold mb-1">${esc(e.event)}</div>
    <div class="small text-secondary mb-3">${esc(e.currency)} · ${when}</div>`;
  const timing = t > nowServer()
    ? `releases in <span class="num" data-close="${t}">--:--</span>`
    : `released ${fmtAge(e.time)}`;
  out += sec("Timing", `<div class="text-secondary small">${impact} impact · ${timing}</div>`);
  const surpTxt = { positive: "actual above forecast", negative: "actual below forecast", inline: "actual matches forecast" }[e.surprise];
  out += sec("Numbers", `<div class="row row-cols-3 g-2">${
      tile("Forecast", esc(e.forecast ?? "—")) +
      tile("Previous", esc(e.previous ?? "—")) +
      tile("Actual", esc(e.actual ?? "—"), e.surprise === "positive" ? "text-success" : e.surprise === "negative" ? "text-danger" : "")
    }</div>` + (surpTxt
      ? `<div class="small text-secondary mt-2">${surpTxt} (numeric only — not gold direction)</div>` : ""));
  return out;
}

function renderNewsDlg() {
  if (!ndState || !newsModal._isShown) return;
  const scroll = $("nd-body").scrollTop;
  $("nd-title").textContent = ndState.kind === "wire" ? "Newswire" : "Economic calendar";
  $("nd-body").innerHTML = ndState.kind === "wire" ? wireDlgHTML() : calDlgHTML();
  $("nd-body").scrollTop = scroll;
  tick();
}

function openNewsDetail(id) {
  const h = findHeadline(id);
  if (!h) return;
  ndState = { kind: "wire", id, snap: h };
  aiErr.delete(id);
  newsModal.show();
  if (!aiMemo.has(id) && !aiPending.has(id)) fetchAiSummary(id);
  renderNewsDlg();
  $("nd-body").scrollTop = 0;
  $("nd-close").focus();
}

function openCalDetail(key) {
  const e = findEvent(key);
  if (!e) return;
  ndState = { kind: "cal", key, snap: e };
  newsModal.show();
  renderNewsDlg();
  $("nd-body").scrollTop = 0;
  $("nd-close").focus();
}

$("nd-close")?.addEventListener("click", () => newsModal.hide());
document.getElementById("news-detail")?.addEventListener("hidden.bs.modal", () => { ndState = null; });

function wireNewsOpeners(host, attr, open) {
  host.addEventListener("click", e => {
    const el = e.target.closest(`[${attr}]`);
    if (el) open(el.getAttribute(attr));
  });
  host.addEventListener("keydown", e => {
    if (e.key !== "Enter" && e.key !== " ") return;
    const el = e.target.closest?.(`[${attr}]`);
    if (!el || e.target !== el) return;
    e.preventDefault();
    open(el.getAttribute(attr));
  });
}

/* ── polling ──────────────────────────────────────────────────── */
async function fetchJSON(name) {
  const res = await fetch(name, { cache: "no-cache" });
  if (!res.ok) throw new Error(`${name}: HTTP ${res.status}`);
  const dateHdr = res.headers.get("Date");
  const text = await res.text();
  return { text, serverNow: dateHdr ? Date.parse(dateHdr) / 1000 : null };
}

async function poll() {
  try {
    const [snap, nw] = await Promise.all([
      fetchJSON("snapshot.json"),
      fetchJSON("news.json").catch(() => null)
    ]);
    const snapChanged = snap.text !== lastSnapText;
    const newsChanged = nw != null && nw.text !== lastNewsText;
    if (snapChanged) { snapshot = JSON.parse(snap.text); lastSnapText = snap.text; }
    if (newsChanged) { news = JSON.parse(nw.text); lastNewsText = nw.text; }
    clockOffset = (snap.serverNow ?? snapshot.server_time_epoch) - Date.now() / 1000;
    lastPollOk = new Date();
    $("banner-fail").classList.add("d-none");

    if (snapChanged) {
      renderHero();
      renderCards();
      if (window.renderGauges) window.renderGauges();
      renderDetail();
    }
    if (newsChanged) {
      renderCalendar();
      renderWire();
      renderNewsDlg();
    }
    if (snapChanged || newsChanged) renderContext();
    tick();

    if (snapChanged) {
      const nextScan = Math.min(...TF_ORDER.map(tf =>
        snapshot.timeframes[tf]?.next_scan_epoch || Infinity));
      if (isFinite(nextScan)) {
        clearTimeout(refetchTimer);
        const delay = (nextScan - nowServer() + 2) * 1000;
        if (delay > 0) refetchTimer = setTimeout(poll, delay);
      }
    }
  } catch (err) {
    const last = lastPollOk ? ` Last update ${lastPollOk.toLocaleTimeString()}.` : "";
    const b = $("banner-fail");
    b.textContent = `Data feed unreachable (${err.message}).${last} Retrying…`;
    b.classList.remove("d-none");
  }
}

function tick() {
  if (!snapshot) return;
  const now = nowServer();
  document.querySelectorAll("[data-close]").forEach(el => {
    const t = parseFloat(el.dataset.close);
    if (!t) return;
    let secs = t - now;
    if (secs < 0) {
      const interval = parseFloat(el.dataset.interval);
      secs = interval > 0 ? ((secs % interval) + interval) % interval : 0;
    }
    el.textContent = fmtCountdown(secs);
  });
  const m5 = snapshot.timeframes["5min"]?.next_close_epoch;
  if (m5) {
    let secs = m5 - now;
    if (secs < 0) secs = ((secs % TF_SECONDS["5min"]) + TF_SECONDS["5min"]) % TF_SECONDS["5min"];
    $("hero-cd").textContent = fmtCountdown(secs);
  }
  const pubEpoch = snapshot.server_time_epoch;
  if (pubEpoch) {
    const age = now - pubEpoch;
    const el = $("hero-updated");
    const stale = !snapshot.market_closed && age > 900;
    el.textContent = (stale ? "STALE — published " : "published ") +
      fmtAge(new Date(pubEpoch * 1000).toISOString());
    el.classList.toggle("text-warning", stale);
    el.classList.toggle("fw-semibold", stale);
  }
}

/* ── boot ─────────────────────────────────────────────────────── */
document.addEventListener("DOMContentLoaded", () => {
  tfModal = new bootstrap.Modal($("tf-detail"));
  newsModal = new bootstrap.Modal($("news-detail"));

  // track modal shown state for renderDetail / renderNewsDlg guards
  $("tf-detail")?.addEventListener("shown.bs.modal", () => { tfModal._isShown = true; });
  $("tf-detail")?.addEventListener("hidden.bs.modal", () => { tfModal._isShown = false; detailTf = null; });
  $("news-detail")?.addEventListener("shown.bs.modal", () => { newsModal._isShown = true; });
  $("news-detail")?.addEventListener("hidden.bs.modal", () => { newsModal._isShown = false; ndState = null; });

  wireOpeners($("tf-grid"));
  wireOpeners($("hero-rail"));
  wireNewsOpeners($("wire"), "data-news-id", openNewsDetail);
  wireNewsOpeners($("cal-body"), "data-ev-key", openCalDetail);

  $("hi-only")?.addEventListener("change", renderCalendar);

  poll();
  setInterval(poll, POLL_MS);
  setInterval(tick, 1000);
});