app.js

/* ==========================================================================
   BeamBridge v2 Frontend Controller (Concise · Zero Emojis · Cohesive Palette)
   ========================================================================== */

function safeStorageGet(k, fallback) {
  try {
    return window.sessionStorage.getItem(k) || fallback;
  } catch {
    return fallback;
  }
}

function safeStorageSet(k, v) {
  try {
    window.sessionStorage.setItem(k, v);
  } catch {
    /* sandboxed iframe fallback */
  }
}

const STATE = {
  lang: "en",
  activeView: "dashboard",
  selectedRepoId: "py_moneyed",
  bootstrap: null,
  repoBundles: {},
  allParityCases: [],
  provider: safeStorageGet("bb_provider", "openrouter"),
  apiKey: safeStorageGet("bb_api_key", ""),
};

const I18N = {
  en: {
    nav_dashboard: "Dashboard",
    nav_modernizer: "Modernizer",
    nav_playground: "MCP Playground",
    nav_parity: "Parity Suite",
    nav_finops: "FinOps",
    btn_engine: "Engine",
    btn_connect_mcp: "Setup & /mcp",
    hero_title: "Beam-1.0 Modernization Hub",
    cap_parity: "Parity",
    cap_tokens: "Cost Saved",
    cap_naive_drift: "RAG Drift",
    cap_regressions: "Regressions",
    kpi_tests: "Verified Tests",
    kpi_tools: "MCP Tools",
    kpi_savings: "TCO Saved",
    card_pipeline: "Pipeline",
    card_estates: "GitHub Repositories",
    card_matrix: "Parity Matrix",
    card_finops_curve: "Inference Spend",
    card_composition: "Cost Ratio",
    guide_s1_title: "Paste a setup prompt into your AI",
    guide_s1_desc: "Select your AI client and copy its prompt to connect BeamBridge's verified /mcp gateway.",
    guide_paste_lbl: "You'll paste this",
    guide_s2_title: "Verify SHA-256 parity",
    guide_s2_desc: "Every tool passes 160/160 differential checks against its original GitHub library before going live.",
    guide_master_lbl: "Master SHA-256:",
    guide_s3_title: "Modernize or inspect live",
    guide_s3_desc: "Clone any public GitHub repo in Modernizer Studio or compare outputs side-by-side in the Playground.",
    guide_s4_title: "Run a verified task",
    guide_s4_desc: "Click an example to copy it and test it live in the Playground.",
  },
  ar: {
    nav_dashboard: "الرئيسية",
    nav_modernizer: "المحوّل",
    nav_playground: "مختبر MCP",
    nav_parity: "الفحوصات",
    nav_finops: "التكلفة",
    btn_engine: "المحرك",
    btn_connect_mcp: "الربط و /mcp",
    hero_title: "منصة تحديث الأنظمة بـ Beam-1.0",
    cap_parity: "التطابق",
    cap_tokens: "وفر التكلفة",
    cap_naive_drift: "أخطاء RAG",
    cap_regressions: "تراجعات",
    kpi_tests: "اختبار موثق",
    kpi_tools: "أداة MCP",
    kpi_savings: "وفر سنوي",
    card_pipeline: "مراحل التحويل",
    card_estates: "مستودعات GitHub",
    card_matrix: "مصفوفة التطابق",
    card_finops_curve: "تكلفة الاستدلال",
    card_composition: "نسبة التوفير",
    guide_s1_title: "الصق أمر الربط في وكيلك الذكي",
    guide_s1_desc: "اختر المنصة وانسخ الأمر الجاهز لربط بوابة /mcp الموثقة.",
    guide_paste_lbl: "النص الجاهز للنسخ",
    guide_s2_title: "شهادات التطابق SHA-256",
    guide_s2_desc: "جميع الأدوات تجتاز 160/160 فحصاً تفاضلياً ضد مكتبات GitHub الأصلية.",
    guide_master_lbl: "البصمة الرئيسية:",
    guide_s3_title: "حدّث مستودعك أو اختبره مباشرة",
    guide_s3_desc: "استنسخ أي مستودع عام في المحوّل أو قارن المخرجات مباشرة في المختبر.",
    guide_s4_title: "جرّب عملية موثقة",
    guide_s4_desc: "اضغط على أي مثال لنسخه وتشغيله فوراً في المختبر.",
  },
};

const REPO_CODES = {
  py_moneyed: "MN",
  price_parser: "PR",
  schwifty: "SW",
  python_stdnum: "ST",
};

const REAL_EDGE_PRESETS = {
  py_moneyed: {
    inspect_and_round_money: [
      { label: "USD Whole Round", args: { amount_str: "19.50", currency_code: "USD", ndigits: null } },
      { label: "BHD 3-Decimal", args: { amount_str: "45.6785", currency_code: "BHD", ndigits: 3 } },
      { label: "JPY 0-Decimal", args: { amount_str: "1500.9", currency_code: "JPY", ndigits: 0 } },
    ],
    pro_rata_subunit_split: [
      { label: "$100 [1,1,1] Split", args: { amount_str: "100.00", currency_code: "USD", weights: [1, 1, 1] } },
      { label: "KWD 50 [5,3,2]", args: { amount_str: "50.000", currency_code: "KWD", weights: [5, 3, 2] } },
    ],
    convert_and_sum_ledger: [
      {
        label: "USD + EUR → SAR",
        args: {
          entries: [{ amount: "100.00", currency: "USD" }, { amount: "250.00", currency: "EUR" }],
          target_currency: "SAR",
          rates_to_target: { USD: "3.75", EUR: "4.0625" },
        },
      },
    ],
  },
  price_parser: {
    parse_procurement_price: [
      { label: "EU 1.299,95 €", args: { raw_text: "Total: 1.299,95 € (incl. VAT)", currency_hint: null, decimal_separator: null } },
      { label: "CHF 1'250.50", args: { raw_text: "CHF 1'250.50", currency_hint: null, decimal_separator: null } },
      { label: "Zero ('Free!')", args: { raw_text: "Free!", currency_hint: "USD", decimal_separator: null } },
    ],
    compute_invoice_line_quote: [
      { label: "4× CHF 1'250.50 − 200", args: { raw_unit_price: "CHF 1'250.50", quantity: 4, raw_discount: "CHF 200.00" } },
    ],
    audit_price_feed_batch: [
      { label: "Mixed Feed", args: { raw_items: ["$19.99", "€ 30,01", "Free!", "Contact sales"] } },
    ],
  },
  schwifty: {
    validate_and_decompose_iban: [
      { label: "UK NatWest IBAN", args: { raw_iban: "GB29 NWBK 6016 1331 9268 19" } },
      { label: "FR BNP IBAN", args: { raw_iban: "FR76 3000 6000 0112 3456 7890 189" } },
      { label: "Invalid Checksum", args: { raw_iban: "GB99 NWBK 6016 1331 9268 19" } },
    ],
    generate_iban_from_bban: [
      { label: "DE BBAN → IBAN", args: { country_code: "DE", bank_code: "37040044", account_code: "0532013000" } },
    ],
    inspect_swift_bic: [
      { label: "DEUTDEFF500", args: { raw_bic: "DEUTDEFF500" } },
      { label: "Invalid Country", args: { raw_bic: "DEUTXXFF" } },
    ],
  },
  python_stdnum: {
    validate_securities_id: [
      { label: "ISIN US0378331005", args: { scheme: "ISIN", raw_code: "US0378331005" } },
      { label: "SEDOL 0263494", args: { scheme: "SEDOL", raw_code: "0263494" } },
      { label: "FIGI BBG000BLNNH6", args: { scheme: "FIGI", raw_code: "BBG000BLNNH6" } },
    ],
    validate_us_routing_or_ein: [
      { label: "JPM RTN 021000021", args: { id_type: "RTN", raw_number: "021000021" } },
      { label: "Invalid EIN 07-", args: { id_type: "EIN", raw_number: "07-1234567" } },
    ],
    validate_eu_vat_number: [
      { label: "DE136695976", args: { raw_vat: "DE 136 695 976" } },
      { label: "FR40303265045", args: { raw_vat: "FR 40 303 265 045" } },
    ],
  },
};

function fmtCurrency(num) {
  const n = Number(num || 0);
  if (n >= 1_000_000) return "$" + (n / 1_000_000).toFixed(2) + "M";
  return "$" + Math.round(n).toLocaleString("en-US");
}

function fmtUsdExact(num) {
  return "$" + Math.round(Number(num || 0)).toLocaleString("en-US");
}

function escapeHtml(str) {
  return String(str ?? "")
    .replace(/&/g, "&")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;");
}

function switchView(viewId) {
  STATE.activeView = viewId;
  document.querySelectorAll(".nav-tab").forEach((btn) => {
    btn.classList.toggle("active", btn.dataset.view === viewId);
  });
  document.querySelectorAll(".view-section").forEach((sec) => {
    sec.classList.toggle("active", sec.id === `view-${viewId}`);
  });
}

function applyLanguage() {
  const dict = I18N[STATE.lang];
  document.getElementById("appShell").setAttribute("dir", STATE.lang === "ar" ? "rtl" : "ltr");
  document.getElementById("langToggleBtn").textContent = STATE.lang === "ar" ? "EN" : "ع";
  document.querySelectorAll("[data-i18n]").forEach((el) => {
    const k = el.getAttribute("data-i18n");
    if (dict[k]) el.textContent = dict[k];
  });
}

/* ==========================================================================
   Dashboard Renderers
   ========================================================================== */
function renderEstatesTable(filterText = "") {
  if (!STATE.bootstrap) return;
  const tbody = document.getElementById("estatesTableBody");
  const q = filterText.trim().toLowerCase();

  const rows = STATE.bootstrap.repositories.filter(
    (r) =>
      !q ||
      r.name.toLowerCase().includes(q) ||
      r.git_sha.toLowerCase().includes(q) ||
      r.sector.toLowerCase().includes(q)
  );

  tbody.innerHTML = rows
    .map((r) => {
      const isSel = r.id === STATE.selectedRepoId;
      const code = REPO_CODES[r.id] || "GH";
      const v = r.verification;
      return `
        <tr class="${isSel ? "selected-row" : ""}" data-repoid="${r.id}">
          <td><span class="row-check">•</span></td>
          <td>
            <div class="estate-name-cell">
              <span class="sector-avatar">${code}</span>
              <div>
                <div style="font-weight:500;color:var(--ink-900);">${escapeHtml(r.name)} <code style="font-size:11px;color:var(--ink-500);">@${escapeHtml(r.git_sha)}</code></div>
                <div style="font-size:11px;color:var(--ink-500);">${r.ast.estimated_beam_tokens.toLocaleString()} BPE tokens</div>
              </div>
            </div>
          </td>
          <td style="color:var(--ink-700);font-size:12px;">${escapeHtml(r.sector)}</td>
          <td style="font-weight:500;font-size:12.5px;">
            <span style="color:var(--ink-500);">${v.chunked_rag_parity_pct}%</span> → <strong style="color:var(--ink-900);">${v.beam_1m_parity_pct}%</strong>
          </td>
          <td>
            <span class="status-pill grey">
              <span class="dot"></span>${v.beam_1m_passed}/${v.total_cases}
            </span>
          </td>
        </tr>
      `;
    })
    .join("");

  tbody.querySelectorAll("tr[data-repoid]").forEach((tr) => {
    tr.addEventListener("click", async () => {
      STATE.selectedRepoId = tr.dataset.repoid;
      renderEstatesTable(document.getElementById("estateSearchInput").value);
      document.getElementById("modRepoSelect").value = STATE.selectedRepoId;
      document.getElementById("pgRepoSelect").value = STATE.selectedRepoId;
      document.getElementById("liveGithubBox").style.display = "none";
      await loadRepoBundle(STATE.selectedRepoId);
    });
  });
}

async function renderMatrixDots() {
  await ensureAllBundlesLoaded();
  const grid = document.getElementById("matrixDotGrid");
  const hoverBar = document.getElementById("matrixHoverText");

  const cliffs = STATE.allParityCases.filter((c) => !c.chunked_rag_parity);
  const normals = STATE.allParityCases.filter((c) => c.chunked_rag_parity);
  const sampled = [...cliffs.slice(0, 46), ...normals.slice(0, 26)].slice(0, 72);

  grid.innerHTML = sampled
    .map((d, idx) => {
      const cls = !d.chunked_rag_parity ? "gold-cliff" : idx % 3 === 0 ? "verified-soft" : "";
      return `<div class="matrix-dot ${cls}" data-idx="${idx}" title="${escapeHtml(d.case_id)}: ${escapeHtml(d.label)}"></div>`;
    })
    .join("");

  grid.querySelectorAll(".matrix-dot").forEach((dot) => {
    const item = sampled[Number(dot.dataset.idx)];
    dot.addEventListener("mouseenter", () => {
      const tag = !item.chunked_rag_parity ? "RAG Failed" : "Verified";
      hoverBar.textContent = `${item.case_id} · ${item.label} (${item.mcp_latency_us} μs) — ${tag}`;
    });
    dot.addEventListener("click", () => {
      document.getElementById("parityRepoFilter").value = item.repo_id;
      switchView("parity");
      renderParityTable();
    });
  });
}

function buildSmoothSvgPath(points) {
  if (!points.length) return "";
  let d = `M ${points[0].x.toFixed(1)} ${points[0].y.toFixed(1)}`;
  for (let i = 0; i < points.length - 1; i++) {
    const p0 = points[i];
    const p1 = points[i + 1];
    const cx = (p0.x + p1.x) / 2;
    d += ` C ${cx.toFixed(1)} ${p0.y.toFixed(1)}, ${cx.toFixed(1)} ${p1.y.toFixed(1)}, ${p1.x.toFixed(1)} ${p1.y.toFixed(1)}`;
  }
  return d;
}

function renderFinOpsCurve(finops) {
  const container = document.getElementById("finopsChartContainer");
  const months = ["M1", "M2", "M3", "M4", "M5", "M6", "M7", "M8", "M9", "M10", "M11", "M12"];
  const rawSeries = finops.cumulative_monthly_series;
  const qwenAnnual = finops.annual_inference_cost_usd.qwen_3_8_2_4t || 42000;
  const beamAnnual = finops.annual_inference_cost_usd.beam_1_0_with_ast_pack || 5800;

  const series = rawSeries
    ? rawSeries.map((r) => ({
        month: r.month,
        frontier_usd: r.qwen_cumulative_usd,
        beam_usd: r.beam_cumulative_usd,
      }))
    : months.map((m, i) => ({
        month: m,
        frontier_usd: (qwenAnnual / 12) * (i + 1),
        beam_usd: (beamAnnual / 12) * (i + 1),
      }));

  const W = 580;
  const H = 180;
  const padL = 46;
  const padR = 18;
  const padT = 26;
  const padB = 30;
  const plotW = W - padL - padR;
  const plotH = H - padT - padB;
  const maxVal = Math.max(...series.map((s) => s.frontier_usd), 100) * 1.16;

  const frontPts = series.map((s, i) => ({
    x: padL + (i / (series.length - 1)) * plotW,
    y: padT + plotH - (s.frontier_usd / maxVal) * plotH,
  }));
  const beamPts = series.map((s, i) => ({
    x: padL + (i / (series.length - 1)) * plotW,
    y: padT + plotH - (s.beam_usd / maxVal) * plotH,
  }));

  const hi = 8;
  const hiFront = frontPts[hi];
  const hiBeam = beamPts[hi];
  const savedPct = finops.annual_inference_cost_usd.token_cost_reduction_vs_qwen38_pct || 96.8;

  const yTicks = [0.25, 0.55, 0.85].map((f) => ({
    y: padT + plotH - f * plotH,
    lbl: "$" + ((maxVal * f) / 1000).toFixed(0) + "k",
  }));

  container.innerHTML = `
    <svg viewBox="0 0 ${W} ${H}" width="100%" height="100%" preserveAspectRatio="none">
      ${yTicks
        .map(
          (t) => `
        <line x1="${padL}" y1="${t.y.toFixed(1)}" x2="${W - padR}" y2="${t.y.toFixed(1)}" stroke="rgba(36,36,38,0.06)" stroke-width="1"/>
        <text x="4" y="${(t.y + 4).toFixed(1)}" fill="#9c9ca1" font-size="10" font-family="inherit">${t.lbl}</text>
      `
        )
        .join("")}
      <path d="${buildSmoothSvgPath(frontPts)}" fill="none" stroke="#242426" stroke-width="1.8" stroke-dasharray="4 4" />
      <path d="${buildSmoothSvgPath(beamPts)}" fill="none" stroke="#e2ba36" stroke-width="2.4" />
      <line x1="${hiFront.x.toFixed(1)}" y1="${hiFront.y.toFixed(1)}" x2="${hiFront.x.toFixed(1)}" y2="${H - padB}" stroke="#242426" stroke-width="1.2" />
      <circle cx="${hiFront.x.toFixed(1)}" cy="${hiFront.y.toFixed(1)}" r="4" fill="#242426" />
      <circle cx="${hiBeam.x.toFixed(1)}" cy="${hiBeam.y.toFixed(1)}" r="4.5" fill="#f5d665" stroke="#242426" stroke-width="1.3" />
      <g transform="translate(${(hiFront.x - 46).toFixed(1)}, ${Math.max(4, hiFront.y - 30).toFixed(1)})">
        <rect x="0" y="0" width="92" height="24" rx="12" fill="#242426" />
        <text x="46" y="15.5" text-anchor="middle" fill="#ffffff" font-size="10.5" font-weight="500" font-family="inherit">−${savedPct}% Cost</text>
      </g>
      ${series
        .map((s, i) => {
          const x = padL + (i / (series.length - 1)) * plotW;
          const isPill = s.month === "M9";
          return `
            ${isPill ? `<rect x="${(x - 15).toFixed(1)}" y="${H - 22}" width="30" height="18" rx="9" fill="rgba(255,255,255,0.92)" />` : ""}
            <text x="${x.toFixed(1)}" y="${H - 9}" text-anchor="middle" fill="${isPill ? "#222224" : "#8b8b90"}" font-size="10.5" font-weight="${isPill ? "600" : "400"}" font-family="inherit">${s.month}</text>
          `;
        })
        .join("")}
    </svg>
  `;
}

/* ==========================================================================
   Modernizer Studio & Live GitHub Cloner
   ========================================================================== */
async function loadRepoBundle(repoId) {
  if (!STATE.repoBundles[repoId]) {
    const resp = await fetch(`/api/repos/${repoId}`);
    STATE.repoBundles[repoId] = await resp.json();
  }
  const bundle = STATE.repoBundles[repoId];
  renderModernizerOutput(bundle);
  populatePlaygroundTools(repoId);
  return bundle;
}

function renderModernizerOutput(bundle, liveSynthesis = null) {
  const cat = bundle.catalog || {};
  const ast = bundle.ast || {};
  const ver = bundle.verification || {};
  const audit = ver.synthesis_audit || {};

  const packLine =
    Number(ast.ast_finops_compression_pct || 0) > 0
      ? `${Number(ast.raw_disk_beam_tokens || 0).toLocaleString()} → <strong>${Number(ast.estimated_beam_tokens || 0).toLocaleString()} BPE tok</strong> (−${ast.ast_finops_compression_pct}%)`
      : `<strong>${Number(ast.estimated_beam_tokens || 0).toLocaleString()} BPE tok</strong> (${ast.file_count || 0} files)`;

  document.getElementById("modTelemetryBox").innerHTML = `
    <div><strong>Repo:</strong> <a href="${escapeHtml(cat.github_url)}" target="_blank" rel="noreferrer" style="color:var(--ink-900);">${escapeHtml(cat.name)}</a> <code>@${escapeHtml(cat.git_sha)}</code></div>
    <div><strong>Tokens:</strong> ${packLine}</div>
    <div><strong>Parity:</strong> <strong>${ver.beam_1m_passed}/${ver.total_cases} (${ver.beam_1m_parity_pct}%)</strong> vs RAG ${ver.chunked_rag_parity_pct}%</div>
    <div><strong>OpenRouter IDs:</strong> <code>${escapeHtml((audit.whole_repo_request_ids || []).join(", "))}</code></div>
  `;

  const turnsHtml = (audit.whole_repo_turns || [])
    .map(
      (t) => `
      <div class="rule-card">
        <div class="rule-card-head">
          <strong style="font-size:12.5px;">Turn ${t.turn} · <code>${escapeHtml(t.model)}</code></strong>
          <span class="status-pill ${t.passed === t.total ? "grey" : "amber"}"><span class="dot"></span>${t.passed}/${t.total} (${t.pass_rate_pct}%)</span>
        </div>
        <div style="font-size:11.5px;color:var(--ink-500);">
          ID: <code>${escapeHtml(t.request_id)}</code> · ${(t.latency_ms / 1000).toFixed(1)}s · ${t.usage.total_tokens.toLocaleString()} tok · $${Number(t.usage.cost_usd || 0).toFixed(5)}
        </div>
      </div>
    `
    )
    .join("");

  const liveBanner = liveSynthesis
    ? `<div class="rule-card" style="background:var(--gold-soft);border-color:var(--gold);font-size:12px;">
         <strong>Synthesis (${escapeHtml(liveSynthesis.mode)}):</strong> <code>${escapeHtml(liveSynthesis.model)}</code> · <code>${escapeHtml((liveSynthesis.request_ids || []).join(", "))}</code> · ${liveSynthesis.latency_ms} ms
       </div>`
    : "";

  const reasoningTxt = (liveSynthesis && liveSynthesis.reasoning_content) || bundle.recorded_reasoning_trace || "";

  document.getElementById("modTabRules").innerHTML = `
    ${liveBanner}
    <div class="rule-card" style="background:#242426;color:#fff;border-color:#242426;">
      <div class="rule-card-head">
        <strong style="font-size:12px;color:var(--gold);">Reasoning Trace</strong>
        <span style="font-size:11px;color:rgba(255,255,255,0.55);">SHA-256: ${escapeHtml((ver.certificate_sha256 || "").slice(0, 12))}…</span>
      </div>
      <div style="font-family:var(--font-mono);font-size:11.5px;line-height:1.55;white-space:pre-wrap;color:rgba(255,255,255,0.86);max-height:220px;overflow-y:auto;">${escapeHtml(reasoningTxt)}</div>
    </div>
    <div style="margin-top:10px;">${turnsHtml}</div>
  `;

  document.getElementById("modernMcpCodePre").textContent =
    (liveSynthesis && liveSynthesis.synthesized_code) || bundle.modernized_mcp_code || "";

  const packedStr = Object.entries(bundle.legacy_files || {})
    .map(([fname, src]) => `/* === ${fname} === */\n${src}`)
    .join("\n\n");
  document.getElementById("legacyPackedCodePre").textContent = packedStr;
}

function renderLiveGithubCloneReport(ghReport) {
  document.getElementById("modTelemetryBox").innerHTML = `
    <div><strong>Cloned:</strong> <a href="${escapeHtml(ghReport.github_url)}" target="_blank" rel="noreferrer" style="color:var(--ink-900);">${escapeHtml(ghReport.repo)}</a> <code>@${escapeHtml(ghReport.git_sha)}</code></div>
    <div><strong>Files:</strong> ${ghReport.files_analyzed} / ${ghReport.total_py_files_discovered} .py</div>
    <div><strong>Beam-1.0 Tokens:</strong> <strong>${ghReport.exact_beam_bpe_tokens.toLocaleString()}</strong> (${ghReport.beam_1m_utilization_pct}% of 1M)</div>
    <div><strong>Single-Pass Cost:</strong> <strong>$${ghReport.estimated_beam_single_pass_usd}</strong> (${ghReport.finops_cost_advantage_x}x cheaper)</div>
  `;

  document.getElementById("modTabRules").innerHTML = `
    <div class="rule-card" style="background:var(--gold-soft);border-color:var(--gold);">
      <strong>Cloned ${escapeHtml(ghReport.repo)}@${escapeHtml(ghReport.git_sha)}</strong> — ${ghReport.total_loc.toLocaleString()} LOC · ${ghReport.total_functions} functions · ${ghReport.cross_file_edge_count} cross-file edges.
    </div>
    ${(ghReport.top_files || [])
      .map(
        (f) => `
      <div class="rule-card">
        <div class="rule-card-head">
          <strong style="font-size:12px;"><code>${escapeHtml(f.file)}</code></strong>
          <span class="status-pill grey">${f.estimated_tokens.toLocaleString()} tok</span>
        </div>
        <div style="font-size:11.5px;color:var(--ink-500);">${f.loc} LOC · ${f.function_count} functions</div>
      </div>
    `
      )
      .join("")}
  `;
}

/* ==========================================================================
   MCP Playground
   ========================================================================== */
function populatePlaygroundTools(repoId) {
  const bundle = STATE.repoBundles[repoId];
  if (!bundle) return;
  const tools = bundle.catalog.mcp_tools || [];
  const toolSelect = document.getElementById("pgToolSelect");
  toolSelect.innerHTML = tools
    .map((t) => `<option value="${t.name}">${t.name}</option>`)
    .join("");
  if (tools.length) renderPlaygroundForm(repoId, tools[0].name);
}

function renderPlaygroundForm(repoId, toolName, overrideArgs = null) {
  const bundle = STATE.repoBundles[repoId];
  if (!bundle) return;
  const toolMeta = (bundle.catalog.mcp_tools || []).find((t) => t.name === toolName) || bundle.catalog.mcp_tools[0];
  const sample = overrideArgs || toolMeta.sample_args || {};

  const presets = (REAL_EDGE_PRESETS[repoId] && REAL_EDGE_PRESETS[repoId][toolMeta.name]) || [];
  const presetsBar = document.getElementById("pgPresetsBar");
  presetsBar.innerHTML = presets
    .map(
      (p, idx) =>
        `<button type="button" class="btn-ghost-pill" style="font-size:11.5px;padding:5px 11px;" data-pidx="${idx}">${escapeHtml(p.label)}</button>`
    )
    .join("");

  presetsBar.querySelectorAll("button[data-pidx]").forEach((btn) => {
    btn.addEventListener("click", () => {
      const chosen = presets[Number(btn.dataset.pidx)];
      renderPlaygroundForm(repoId, toolMeta.name, chosen.args);
      invokePlaygroundTool();
    });
  });

  const formBox = document.getElementById("pgDynamicForm");
  formBox.innerHTML = Object.entries(sample)
    .map(([key, val]) => {
      const isObj = val !== null && typeof val === "object";
      const valType = val === null ? "null_or_str" : typeof val === "number" ? (Number.isInteger(val) ? "integer" : "number") : isObj ? "json" : "string";
      const displayVal = val === null ? "" : isObj ? JSON.stringify(val) : String(val);
      return `
        <div class="form-field">
          <label><code>${escapeHtml(key)}</code></label>
          <input class="form-input" data-argkey="${escapeHtml(key)}" data-argtype="${valType}" placeholder="null" value="${escapeHtml(displayVal)}" />
        </div>
      `;
    })
    .join("");

  invokePlaygroundTool();
}

async function invokePlaygroundTool() {
  const repoId = document.getElementById("pgRepoSelect").value;
  const toolName = document.getElementById("pgToolSelect").value;
  const args = {};

  document.querySelectorAll("#pgDynamicForm [data-argkey]").forEach((el) => {
    const k = el.dataset.argkey;
    const tp = el.dataset.argtype;
    const raw = el.value.trim();
    if (tp === "null_or_str") {
      if (!raw) args[k] = null;
      else if (/^-?\d+$/.test(raw)) args[k] = parseInt(raw, 10);
      else args[k] = raw;
    } else if (tp === "integer") {
      args[k] = raw === "" ? null : parseInt(raw, 10);
    } else if (tp === "number") {
      args[k] = raw === "" ? null : parseFloat(raw);
    } else if (tp === "json") {
      try {
        args[k] = JSON.parse(raw);
      } catch {
        args[k] = raw;
      }
    } else {
      args[k] = el.value;
    }
  });

  const resp = await fetch("/api/mcp/invoke", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ repo_id: repoId, tool_name: toolName, arguments: args }),
  });
  const data = await resp.json();
  if (!resp.ok) {
    document.getElementById("pgLegacyOutPre").textContent = data.detail || "Execution error";
    return;
  }

  document.getElementById("pgLegacyTime").textContent = `${data.legacy_latency_us} μs`;
  document.getElementById("pgModernTime").textContent = `${data.modern_latency_us} μs`;
  document.getElementById("pgLegacyOutPre").textContent = JSON.stringify(data.legacy_output, null, 2);
  document.getElementById("pgModernOutPre").textContent = JSON.stringify(data.modern_output, null, 2);
  document.getElementById("pgJsonRpcPre").textContent = JSON.stringify(data.mcp_jsonrpc_response, null, 2);

  const badge = document.getElementById("pgParityBadge");
  if (data.parity_verified) {
    badge.className = "status-pill grey";
    badge.innerHTML = `<span class="dot"></span>100% Exact Match`;
  } else {
    badge.className = "status-pill amber";
    badge.innerHTML = `<span class="dot"></span>Difference`;
  }
}

/* ==========================================================================
   Parity Suite Table
   ========================================================================== */
async function ensureAllBundlesLoaded() {
  if (!STATE.bootstrap) return;
  for (const r of STATE.bootstrap.repositories) {
    if (!STATE.repoBundles[r.id]) {
      const resp = await fetch(`/api/repos/${r.id}`);
      STATE.repoBundles[r.id] = await resp.json();
    }
  }
  STATE.allParityCases = [];
  for (const r of STATE.bootstrap.repositories) {
    const b = STATE.repoBundles[r.id];
    for (const c of b.verification.cases) {
      STATE.allParityCases.push({
        ...c,
        case_id: `${r.id.toUpperCase()}-${String(c.case_index).padStart(2, "0")}`,
        repo_id: r.id,
        repo_name: r.name,
        git_sha: r.git_sha,
      });
    }
  }
}

async function renderParityTable() {
  await ensureAllBundlesLoaded();
  const repoF = document.getElementById("parityRepoFilter").value;
  const cliffF = document.getElementById("parityCliffFilter").value;

  const filtered = STATE.allParityCases.filter((c) => {
    if (repoF !== "all" && c.repo_id !== repoF) return false;
    if (cliffF === "cliffs" && c.chunked_rag_parity) return false;
    return true;
  });

  const tbody = document.getElementById("parityCasesBody");
  tbody.innerHTML = filtered
    .map((c) => {
      const digest = JSON.stringify(c.mcp_output).slice(0, 62) + "…";
      return `
        <tr>
          <td style="font-family:var(--font-mono);font-size:12px;font-weight:600;">${escapeHtml(c.case_id)}</td>
          <td>
            <div style="font-weight:500;">${escapeHtml(c.label)}</div>
            <div style="font-size:11px;color:var(--ink-500);">${escapeHtml(c.repo_name)}@${escapeHtml(c.git_sha)}</div>
          </td>
          <td style="font-family:var(--font-mono);font-size:11.5px;">${escapeHtml(c.tool_name)}</td>
          <td style="font-family:var(--font-mono);font-size:11px;color:var(--ink-700);">${escapeHtml(digest)}</td>
          <td>
            <span class="status-pill ${c.chunked_rag_parity ? "grey" : "amber"}">
              <span class="dot"></span>${c.chunked_rag_parity ? "Pass" : "Failed"}
            </span>
          </td>
          <td>
            <span class="status-pill grey">
              <span class="dot"></span>100%
            </span>
          </td>
        </tr>
      `;
    })
    .join("");
}

/* ==========================================================================
   FinOps & Benchmarks
   ========================================================================== */
function renderHeadToHeadTable(rows) {
  const tbody = document.getElementById("h2hBenchmarkBody");
  if (!tbody) return;
  tbody.innerHTML = (rows || [])
    .map((r) => {
      const isBeam = r.model.includes("beam-1.0");
      const pct = r.zero_shot_parity_pct ?? 0;
      const pillTone = pct === 100 ? "grey" : pct >= 90 ? "grey" : "amber";
      return `
        <tr class="${isBeam ? "selected-row" : ""}">
          <td>
            <div style="font-weight:${isBeam ? "600" : "500"};color:var(--ink-900);">${escapeHtml(r.model)}</div>
            <div style="font-size:11px;color:var(--ink-500);">${escapeHtml(r.provider || "OpenRouter")}</div>
          </td>
          <td style="font-family:var(--font-mono);font-size:11.5px;">${escapeHtml(r.request_id || "—")}</td>
          <td style="font-family:var(--font-mono);font-size:11.5px;">
            ${Number(r.prompt_tokens || 0).toLocaleString()} / ${Number(r.completion_tokens || 0).toLocaleString()} / ${Number(r.reasoning_tokens || 0).toLocaleString()}
          </td>
          <td style="font-weight:500;">${((r.latency_ms || 0) / 1000).toFixed(1)}s</td>
          <td style="font-family:var(--font-mono);font-size:12px;">$${Number(r.cost_usd || 0).toFixed(5)}</td>
          <td>
            <span class="status-pill ${pillTone}">
              <span class="dot"></span>${r.zero_shot_passed}/${r.total_vectors} (${pct}%)
            </span>
          </td>
        </tr>
      `;
    })
    .join("");
}

async function updateRoiSimulator() {
  const kloc = Number(document.getElementById("roiKlocRange").value);
  const mods = Number(document.getElementById("roiModsRange").value);
  const runs = Number(document.getElementById("roiCallsRange").value);
  const eng = Number(document.getElementById("roiEngCostRange").value);

  document.getElementById("lblKloc").textContent = `${kloc} KLOC`;
  document.getElementById("lblMods").textContent = `${mods} Services`;
  document.getElementById("lblCalls").textContent = `${runs} / day`;
  document.getElementById("lblEngCost").textContent = `${fmtUsdExact(eng)} / yr`;

  const resp = await fetch("/api/finops", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      legacy_kloc: kloc,
      microservices_count: mods,
      daily_agent_verification_runs: runs,
      engineer_fully_loaded_annual_usd: eng,
    }),
  });
  const roi = await resp.json();

  document.getElementById("roiManualUsd").textContent = fmtUsdExact(roi.modernization_program_tco_usd.manual_rewrite_usd);
  document.getElementById("roiManualWeeks").textContent = `${roi.schedule_impact.manual_months} months`;
  document.getElementById("roiFrontierUsd").textContent = fmtUsdExact(roi.modernization_program_tco_usd.qwen38_agent_program_usd);
  document.getElementById("roiFrontierTokens").textContent = `API: ${fmtUsdExact(roi.annual_inference_cost_usd.qwen_3_8_2_4t)}/yr`;
  document.getElementById("roiBeamUsd").textContent = fmtUsdExact(roi.modernization_program_tco_usd.beambridge_1m_program_usd);
  document.getElementById("roiBeamWeeks").textContent = `${roi.schedule_impact.beambridge_months} months · API: ${fmtUsdExact(roi.annual_inference_cost_usd.beam_1_0_with_ast_pack)}/yr`;
  document.getElementById("roiNetSavingsBanner").textContent = `${fmtUsdExact(roi.modernization_program_tco_usd.net_enterprise_savings_usd)} Saved`;
  document.getElementById("roiTokenBillSaved").textContent = `${roi.annual_inference_cost_usd.token_cost_reduction_vs_qwen38_pct}% Lower Cost`;

  renderFinOpsCurve(roi);
}

function renderConsultingCards(citations) {
  const box = document.getElementById("consultingCardsGrid");
  box.innerHTML = (citations || [])
    .map(
      (c) => `
      <div class="rule-card" style="margin-bottom:0;">
        <div style="margin-bottom:6px;">
          <span class="status-pill grey"><span class="dot"></span>${escapeHtml(c.firm)}</span>
        </div>
        <div style="font-size:12.5px;color:var(--ink-700);line-height:1.5;">${escapeHtml(c.finding)}</div>
      </div>
    `
    )
    .join("");
}

/* ==========================================================================
   Bootstrap & Event Wiring
   ========================================================================== */
async function initApp() {
  document.querySelectorAll(".nav-tab").forEach((btn) => {
    btn.addEventListener("click", async () => {
      switchView(btn.dataset.view);
      if (btn.dataset.view === "parity") await renderParityTable();
    });
  });

  document.getElementById("brandHomeBtn").addEventListener("click", () => switchView("dashboard"));

  document.querySelectorAll("[data-goto]").forEach((el) => {
    el.addEventListener("click", async () => {
      const target = el.getAttribute("data-goto");
      switchView(target);
      if (target === "parity") await renderParityTable();
    });
  });

  document.querySelectorAll("#stageStrip .stage-day-item").forEach((item) => {
    item.addEventListener("click", () => {
      document.querySelectorAll("#stageStrip .stage-day-item").forEach((x) => x.classList.remove("active"));
      item.classList.add("active");
    });
  });

  document.getElementById("langToggleBtn").addEventListener("click", () => {
    STATE.lang = STATE.lang === "en" ? "ar" : "en";
    applyLanguage();
  });

  document.getElementById("estateSearchInput").addEventListener("input", (e) => {
    renderEstatesTable(e.target.value);
  });

  document.getElementById("modRepoSelect").addEventListener("change", async (e) => {
    const val = e.target.value;
    const isGhLive = val === "__github_live__";
    document.getElementById("liveGithubBox").style.display = isGhLive ? "block" : "none";
    document.getElementById("runModernizerBtnText").textContent = isGhLive
      ? "Clone & Analyze Repository"
      : "Synthesize Whole-Repo MCP";
    if (!isGhLive) {
      STATE.selectedRepoId = val;
      await loadRepoBundle(val);
    }
  });

  document.querySelectorAll("#modSubTabs .sub-pill-btn").forEach((btn) => {
    btn.addEventListener("click", () => {
      document.querySelectorAll("#modSubTabs .sub-pill-btn").forEach((b) => b.classList.remove("active"));
      btn.classList.add("active");
      const st = btn.dataset.subtab;
      document.getElementById("modTabRules").style.display = st === "rules" ? "block" : "none";
      document.getElementById("modTabMcpCode").style.display = st === "mcp_code" ? "block" : "none";
      document.getElementById("modTabLegacyCode").style.display = st === "legacy_code" ? "block" : "none";
    });
  });

  document.getElementById("runModernizerBtn").addEventListener("click", async () => {
    const btn = document.getElementById("runModernizerBtn");
    const repoSel = document.getElementById("modRepoSelect").value;
    const effort = document.getElementById("modEffortSelect").value;
    btn.disabled = true;
    try {
      if (repoSel === "__github_live__") {
        btn.innerHTML = `<span>Cloning Repository...</span>`;
        const ghUrl = document.getElementById("liveGithubUrlInput").value.trim();
        const resp = await fetch("/api/github/ingest", {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ github_url: ghUrl }),
        });
        const ghData = await resp.json();
        if (!resp.ok) {
          alert(ghData.detail || "GitHub clone failed");
        } else {
          renderLiveGithubCloneReport(ghData);
        }
      } else {
        btn.innerHTML = `<span>Synthesizing...</span>`;
        const bundle = await loadRepoBundle(repoSel);
        const resp = await fetch("/api/beam/synthesize", {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({
            repo_id: repoSel,
            provider: STATE.provider,
            api_key: STATE.apiKey || null,
            reasoning_effort: effort,
          }),
        });
        const syn = await resp.json();
        if (resp.ok && syn.mode !== "live_api_error") {
          renderModernizerOutput(bundle, syn);
        } else {
          alert(syn.error || syn.detail || "Synthesis error");
        }
      }
    } finally {
      btn.disabled = false;
      btn.innerHTML = `<span id="runModernizerBtnText">${
        repoSel === "__github_live__" ? "Clone & Analyze Repository" : "Synthesize Whole-Repo MCP"
      }</span>`;
    }
  });

  document.getElementById("copyMcpCodeBtn").addEventListener("click", () => {
    navigator.clipboard.writeText(document.getElementById("modernMcpCodePre").textContent || "");
    const b = document.getElementById("copyMcpCodeBtn");
    b.textContent = "Copied";
    setTimeout(() => (b.textContent = "Copy Code"), 1400);
  });

  document.getElementById("jumpToPlaygroundBtn").addEventListener("click", () => switchView("playground"));

  document.getElementById("pgRepoSelect").addEventListener("change", async (e) => {
    const rid = e.target.value;
    await loadRepoBundle(rid);
    populatePlaygroundTools(rid);
  });

  document.getElementById("pgToolSelect").addEventListener("change", (e) => {
    renderPlaygroundForm(document.getElementById("pgRepoSelect").value, e.target.value);
  });

  document.getElementById("invokeMcpBtn").addEventListener("click", invokePlaygroundTool);

  document.getElementById("parityRepoFilter").addEventListener("change", renderParityTable);
  document.getElementById("parityCliffFilter").addEventListener("change", renderParityTable);

  ["roiKlocRange", "roiModsRange", "roiCallsRange", "roiEngCostRange"].forEach((id) => {
    document.getElementById(id).addEventListener("input", updateRoiSimulator);
    document.getElementById(id).addEventListener("change", updateRoiSimulator);
  });

  const engModal = document.getElementById("engineModal");
  document.getElementById("openEngineModalBtn").addEventListener("click", () => {
    document.getElementById("cfgProvider").value = STATE.provider;
    document.getElementById("cfgApiKey").value = STATE.apiKey;
    engModal.classList.add("open");
  });
  document.getElementById("closeEngineModalBtn").addEventListener("click", () => engModal.classList.remove("open"));
  document.getElementById("saveEngineCfgBtn").addEventListener("click", () => {
    STATE.provider = document.getElementById("cfgProvider").value;
    STATE.apiKey = document.getElementById("cfgApiKey").value.trim();
    safeStorageSet("bb_provider", STATE.provider);
    safeStorageSet("bb_api_key", STATE.apiKey);
    document.getElementById("engineStatusDot").classList.toggle("live", Boolean(STATE.apiKey));
    engModal.classList.remove("open");
  });

  // Clean 01–04 Onboarding & SHA-256 Modal
  const certModal = document.getElementById("certModal");
  let activeGuideClient = "claude";
  let activeGuideSubIndex = 0;

  function buildGuideClients(origin) {
    const mcpUrl = `${origin}/mcp`;
    return {
      claude: {
        title: "Claude",
        extLabel: "claude.ai ↗",
        extHref: "https://claude.ai",
        modes: [
          {
            label: "Claude",
            copyLabel: "Copy for Claude",
            helper:
              STATE.lang === "ar"
                ? "يرشدك Claude لإضافة بوابة BeamBridge كموصل مخصص في الإعدادات."
                : "Claude walks you through adding BeamBridge as a custom connector in settings.",
            snippet: `Connect BeamBridge (${mcpUrl}) to Claude: open Settings › Connectors › Add custom connector, paste ${mcpUrl}, click Add, then list the 12 tools and test pro_rata_subunit_split on $100 USD across [1, 1, 1].`,
          },
          {
            label: "Claude Code",
            copyLabel: "Copy for Claude Code",
            helper:
              STATE.lang === "ar"
                ? "أمر واحد يربط خادم HTTP JSON-RPC 2.0 مباشرة في Claude Code."
                : "Attach BeamBridge in one CLI command over HTTP JSON-RPC 2.0.",
            snippet: `claude mcp add --transport http beambridge ${mcpUrl}`,
          },
        ],
      },
      openai: {
        title: "OpenAI",
        extLabel: "chatgpt.com ↗",
        extHref: "https://chatgpt.com",
        modes: [
          {
            label: "ChatGPT",
            copyLabel: "Copy for ChatGPT",
            helper:
              STATE.lang === "ar"
                ? "أضف البوابة كموصل MCP مخصص داخل إعدادات ChatGPT."
                : "Attach BeamBridge via ChatGPT Custom MCP Connectors.",
            snippet: `Connect custom MCP server ${mcpUrl}, list all 12 tools, and test validate_and_decompose_iban on "GB29 NWBK 6016 1331 9268 19".`,
          },
          {
            label: "Codex",
            copyLabel: "Copy for Codex",
            helper:
              STATE.lang === "ar"
                ? "أضف هذا المقطع إلى ملف إعدادات Codex CLI."
                : "Add this block to ~/.codex/config.toml.",
            snippet: `[mcp_servers.beambridge]\nurl = "${mcpUrl}"\ntransport = "streamable_http"`,
          },
        ],
      },
      cursor: {
        title: "Cursor",
        extLabel: "cursor.com ↗",
        extHref: "https://cursor.com",
        modes: [
          {
            label: "Prompt",
            copyLabel: "Copy for Cursor",
            helper:
              STATE.lang === "ar"
                ? "الصقه في محادثة Cursor ليضبط ملف .cursor/mcp.json تلقائياً."
                : "Paste into Cursor Agent to configure .cursor/mcp.json automatically.",
            snippet: `Add HTTP MCP server "beambridge" (${mcpUrl}) to .cursor/mcp.json and test parse_procurement_price on "1.299,95 €".`,
          },
          {
            label: "mcp.json",
            copyLabel: "Copy mcp.json",
            helper:
              STATE.lang === "ar"
                ? "أو ضعه مباشرة في ملف .cursor/mcp.json."
                : "Or save directly into .cursor/mcp.json.",
            snippet: JSON.stringify({ mcpServers: { beambridge: { url: mcpUrl, transport: "streamable-http" } } }, null, 2),
          },
        ],
      },
      antigravity: {
        title: "Antigravity",
        extLabel: "idx.google.com ↗",
        extHref: "https://idx.google.com",
        modes: [
          {
            label: "Setup",
            copyLabel: "Copy for Antigravity",
            helper:
              STATE.lang === "ar"
                ? "اربط بوابة BeamBridge داخل إعدادات MCP في Antigravity."
                : "Register BeamBridge inside Antigravity MCP settings.",
            snippet: `Register MCP server "beambridge" at ${mcpUrl} and run inspect_and_round_money("45.6785", "BHD", 3).`,
          },
        ],
      },
      other: {
        title: "Other",
        extLabel: "modelcontextprotocol.io ↗",
        extHref: "https://modelcontextprotocol.io",
        modes: [
          {
            label: "JSON Config",
            copyLabel: "Copy Config",
            helper:
              STATE.lang === "ar"
                ? "متوافق مع أي عميل يدعم بروتوكول MCP عبر HTTP."
                : "Standard config for any HTTP JSON-RPC 2.0 MCP client.",
            snippet: JSON.stringify({ mcpServers: { beambridge: { url: mcpUrl } } }, null, 2),
          },
          {
            label: "cURL",
            copyLabel: "Copy cURL",
            helper:
              STATE.lang === "ar"
                ? "اختبار مباشر من الطرفية."
                : "Test directly from any terminal.",
            snippet: `curl -sS -X POST ${mcpUrl} -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'`,
          },
        ],
      },
    };
  }

  function renderGuideClientCard() {
    const clients = buildGuideClients(window.location.origin);
    const cfg = clients[activeGuideClient] || clients.claude;
    if (activeGuideSubIndex >= cfg.modes.length) activeGuideSubIndex = 0;
    const mode = cfg.modes[activeGuideSubIndex];

    document.querySelectorAll("#guideClientList .guide-client-btn").forEach((btn) => {
      btn.classList.toggle("active", btn.dataset.client === activeGuideClient);
    });

    document.getElementById("guideClientHeading").textContent = cfg.title;
    const extEl = document.getElementById("guideClientExtLink");
    extEl.textContent = cfg.extLabel;
    extEl.href = cfg.extHref;

    const pillsBox = document.getElementById("guideModePills");
    if (cfg.modes.length > 1) {
      pillsBox.style.display = "inline-flex";
      pillsBox.innerHTML = cfg.modes
        .map(
          (m, idx) =>
            `<button type="button" class="guide-mode-pill ${idx === activeGuideSubIndex ? "active" : ""}" data-mindex="${idx}">${escapeHtml(m.label)}</button>`
        )
        .join("");
      pillsBox.querySelectorAll(".guide-mode-pill").forEach((pb) => {
        pb.addEventListener("click", () => {
          activeGuideSubIndex = Number(pb.dataset.mindex);
          renderGuideClientCard();
        });
      });
    } else {
      pillsBox.style.display = "none";
      pillsBox.innerHTML = "";
    }

    document.getElementById("guideClientHelper").textContent = mode.helper;
    document.getElementById("mcpEndpointSnippet").textContent = mode.snippet;
    document.getElementById("copyClientPromptLabel").textContent = mode.copyLabel;
  }

  function renderGuideCertificates() {
    if (!STATE.bootstrap) return;
    document.getElementById("certListBox").innerHTML = STATE.bootstrap.repositories
      .map((r) => {
        const firstId = (r.verification.synthesis_audit.whole_repo_request_ids || [])[0] || "";
        const sha = r.verification.certificate_sha256 || "";
        return `
          <div class="guide-cert-card">
            <div class="guide-cert-top">
              <div class="guide-cert-repo">${escapeHtml(r.name)} <code style="color:#8e8e9a;font-size:11px;">@${escapeHtml(r.git_sha)}</code></div>
              <span class="guide-cert-badge">${r.verification.beam_1m_passed}/${r.verification.total_cases}</span>
            </div>
            <div class="guide-cert-meta">
              ID: ${escapeHtml(firstId)} · SHA: ${escapeHtml(sha.slice(0, 14))}…
            </div>
          </div>
        `;
      })
      .join("");
  }

  document.querySelectorAll("#guideClientList .guide-client-btn").forEach((btn) => {
    btn.addEventListener("click", () => {
      activeGuideClient = btn.dataset.client;
      activeGuideSubIndex = 0;
      renderGuideClientCard();
    });
  });

  document.getElementById("copyClientPromptBtn").addEventListener("click", () => {
    const txt = document.getElementById("mcpEndpointSnippet").textContent || "";
    navigator.clipboard.writeText(txt);
    const lbl = document.getElementById("copyClientPromptLabel");
    const prev = lbl.textContent;
    lbl.textContent = "Copied";
    setTimeout(() => {
      lbl.textContent = prev;
    }, 1400);
  });

  document.getElementById("copyMasterShaBtn").addEventListener("click", (e) => {
    const masterSha =
      (STATE.bootstrap && STATE.bootstrap.portfolio_totals && STATE.bootstrap.portfolio_totals.master_certificate_sha256) || "";
    navigator.clipboard.writeText(masterSha);
    const btn = e.currentTarget;
    const prev = btn.textContent;
    btn.textContent = "Copied";
    setTimeout(() => {
      btn.textContent = prev;
    }, 1500);
  });

  document.getElementById("guideOpenEngineBtn").addEventListener("click", () => {
    certModal.classList.remove("open");
    document.getElementById("cfgProvider").value = STATE.provider;
    document.getElementById("cfgApiKey").value = STATE.apiKey;
    engModal.classList.add("open");
  });

  document.getElementById("guideJumpModernizerBtn").addEventListener("click", () => {
    certModal.classList.remove("open");
    switchView("modernizer");
  });

  document.getElementById("guideJumpPlaygroundBtn").addEventListener("click", () => {
    certModal.classList.remove("open");
    switchView("playground");
  });

  document.getElementById("guideJumpParityBtn").addEventListener("click", async () => {
    certModal.classList.remove("open");
    switchView("parity");
    await renderParityTable();
  });

  const CHIP_ACTIONS = {
    money: {
      repo: "py_moneyed",
      tool: "pro_rata_subunit_split",
      args: { amount_str: "100.00", currency_code: "USD", weights: [1, 1, 1] },
    },
    iban: {
      repo: "schwifty",
      tool: "validate_and_decompose_iban",
      args: { raw_iban: "GB29 NWBK 6016 1331 9268 19" },
    },
    vat: {
      repo: "python_stdnum",
      tool: "validate_eu_vat_number",
      args: { raw_vat: "DE 136 695 976" },
    },
  };

  document.querySelectorAll("#guideExampleChips .guide-prompt-chip").forEach((chip) => {
    chip.addEventListener("click", async () => {
      navigator.clipboard.writeText(chip.textContent.trim());
      const act = CHIP_ACTIONS[chip.dataset.chip];
      certModal.classList.remove("open");
      if (act) {
        switchView("playground");
        document.getElementById("pgRepoSelect").value = act.repo;
        await loadRepoBundle(act.repo);
        populatePlaygroundTools(act.repo);
        document.getElementById("pgToolSelect").value = act.tool;
        renderPlaygroundForm(act.repo, act.tool, act.args);
      }
    });
  });

  document.getElementById("openCertModalBtn").addEventListener("click", () => {
    renderGuideClientCard();
    renderGuideCertificates();
    certModal.classList.add("open");
  });
  document.getElementById("closeCertModalBtn").addEventListener("click", () => certModal.classList.remove("open"));
  certModal.addEventListener("click", (e) => {
    if (e.target === certModal) certModal.classList.remove("open");
  });
  window.addEventListener("keydown", (e) => {
    if (e.key === "Escape") {
      certModal.classList.remove("open");
      engModal.classList.remove("open");
    }
  });

  // Bootstrap
  const bootResp = await fetch("/api/bootstrap");
  const boot = await bootResp.json();
  STATE.bootstrap = boot;

  const pt = boot.portfolio_totals;
  const fin = boot.finops;
  const savedPct = Math.round(fin.annual_inference_cost_usd.token_cost_reduction_vs_qwen38_pct || 97);
  const driftPct = Math.round(100 - pt.chunked_rag_parity_pct);

  document.getElementById("capParityVal").textContent = `${Math.round(pt.beam_1m_parity_pct)}%`;
  document.getElementById("capTokenSavedVal").textContent = `${savedPct}%`;
  document.getElementById("capDriftVal").textContent = `${driftPct}%`;
  document.getElementById("capRegVal").textContent = "0%";

  document.getElementById("kpiTestsNum").textContent = String(pt.total_verification_assertions);
  document.getElementById("kpiToolsNum").textContent = String(pt.mcp_tools_exposed);
  document.getElementById("kpiSavingsNum").textContent = fmtCurrency(fin.modernization_program_tco_usd.net_enterprise_savings_usd);
  document.getElementById("tlPackSub").textContent = `${(pt.total_raw_beam_tokens / 1_000_000).toFixed(2)}M → ${pt.total_beam_tokens.toLocaleString()} tokens`;

  const chunkFails = Math.round(pt.total_verification_assertions * (1 - pt.chunked_rag_parity_pct / 100));
  document.getElementById("darkPassedNum").textContent = String(pt.total_verification_assertions);
  document.getElementById("darkFailedNaiveNum").textContent = String(chunkFails);

  const mult = (fin.annual_inference_cost_usd.qwen_3_8_2_4t / Math.max(1, fin.annual_inference_cost_usd.beam_1_0_with_ast_pack)).toFixed(1);
  document.getElementById("donutCenterMult").textContent = `${mult}x`;
  document.getElementById("donutSavedPct").textContent = `${savedPct}%`;
  document.getElementById("donutUsedPct").textContent = `${100 - savedPct}%`;

  renderEstatesTable();
  renderFinOpsCurve(fin);
  renderHeadToHeadTable(boot.head_to_head_benchmark);
  renderConsultingCards(fin.citations);

  await loadRepoBundle(STATE.selectedRepoId);
  await renderMatrixDots();
  await updateRoiSimulator();
}

window.addEventListener("DOMContentLoaded", initApp);