const pptxgen = require("pptxgenjs");

const pres = new pptxgen();
pres.layout = "LAYOUT_16x9";
pres.author = "Medical Education";
pres.title = "Hypertension: Diagnosis & Management";

// ─── Color Palette ────────────────────────────────────────────────────────────
const C = {
  navy:      "0A2342",   // dominant dark background
  teal:      "1B7F8E",   // supporting accent
  tealLight: "2AABB9",   // lighter teal
  gold:      "E8A020",   // sharp accent / highlights
  white:     "FFFFFF",
  offWhite:  "EDF2F7",
  lightGray: "B0BEC5",
  slate:     "546E7A",
  red:       "C0392B",
  green:     "1E8449",
};

// ─── Helper: section label strip ─────────────────────────────────────────────
function addSectionLabel(slide, label) {
  slide.addShape(pres.ShapeType.rect, {
    x: 0, y: 0, w: 10, h: 0.12, fill: { color: C.gold }, line: { color: C.gold },
  });
  slide.addText(label.toUpperCase(), {
    x: 0.3, y: 0.15, w: 9.4, h: 0.25,
    fontSize: 8, bold: true, color: C.gold, charSpacing: 3,
  });
}

// ─── Helper: slide title ──────────────────────────────────────────────────────
function addSlideTitle(slide, title) {
  slide.addText(title, {
    x: 0.4, y: 0.45, w: 9.2, h: 0.65,
    fontSize: 26, bold: true, color: C.white, fontFace: "Calibri",
  });
  slide.addShape(pres.ShapeType.rect, {
    x: 0.4, y: 1.12, w: 1.2, h: 0.045, fill: { color: C.tealLight }, line: { color: C.tealLight },
  });
}

// ─── Helper: full-slide dark background ──────────────────────────────────────
function darkBG(slide) {
  slide.background = { color: C.navy };
}

// ─── Helper: bullet list ──────────────────────────────────────────────────────
function addBullets(slide, items, opts = {}) {
  const { x = 0.5, y = 1.35, w = 8.9, h = 3.8, fontSize = 17, color = C.white } = opts;
  const textItems = items.map((item, i) => {
    if (typeof item === "string") {
      return { text: item, options: { bullet: { code: "25B8", color: C.gold }, breakLine: i < items.length - 1, fontSize, color, paraSpaceAfter: 6 } };
    }
    // { text, sub: [..] }
    const lines = [{ text: item.text, options: { bullet: { code: "25B8", color: C.gold }, breakLine: true, fontSize, color, bold: true, paraSpaceAfter: 2 } }];
    if (item.sub) {
      item.sub.forEach((s, si) => {
        lines.push({ text: "    " + s, options: { bullet: false, breakLine: si < item.sub.length - 1 || i < items.length - 1, fontSize: fontSize - 2, color: C.lightGray, paraSpaceAfter: 4 } });
      });
    }
    return lines;
  });
  slide.addText(textItems.flat(), { x, y, w, h, valign: "top" });
}

// ─── SLIDE 1: Title Slide ─────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  // Left accent bar
  s.addShape(pres.ShapeType.rect, { x: 0, y: 0, w: 0.18, h: 5.625, fill: { color: C.teal }, line: { color: C.teal } });
  s.addShape(pres.ShapeType.rect, { x: 0.18, y: 0, w: 0.06, h: 5.625, fill: { color: C.gold }, line: { color: C.gold } });

  // ECG decorative line (zigzag)
  s.addShape(pres.ShapeType.rect, { x: 0.4, y: 2.9, w: 9.4, h: 0.02, fill: { color: C.teal }, line: { color: C.teal } });

  s.addText("HYPERTENSION", {
    x: 0.5, y: 1.0, w: 9.2, h: 1.0,
    fontSize: 52, bold: true, color: C.white, fontFace: "Calibri", charSpacing: 4,
  });
  s.addText("Diagnosis & Management", {
    x: 0.5, y: 2.0, w: 9.2, h: 0.65,
    fontSize: 28, bold: false, color: C.tealLight, fontFace: "Calibri",
  });
  s.addShape(pres.ShapeType.rect, { x: 0.5, y: 2.85, w: 4.5, h: 0.05, fill: { color: C.gold }, line: { color: C.gold } });
  s.addText("Clinical Education Series  |  May 2026", {
    x: 0.5, y: 3.05, w: 9, h: 0.4,
    fontSize: 13, color: C.lightGray, italic: true,
  });
  s.addText("For Medical & Clinical Professionals", {
    x: 0.5, y: 3.5, w: 9, h: 0.35,
    fontSize: 12, color: C.slate,
  });
}

// ─── SLIDE 2: Agenda ──────────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Overview");
  addSlideTitle(s, "Agenda");

  const topics = [
    "Definition & Classification",
    "Epidemiology & Global Burden",
    "Pathophysiology",
    "Clinical Evaluation & Diagnosis",
    "Ambulatory & Home BP Monitoring",
    "Target Organ Damage",
    "Treatment Goals",
    "Pharmacological Management",
    "Non-Pharmacological Interventions",
    "Hypertensive Urgency & Emergency",
    "Special Populations",
    "Key Takeaways",
  ];

  // Two-column layout
  const col1 = topics.slice(0, 6);
  const col2 = topics.slice(6);

  col1.forEach((t, i) => {
    s.addShape(pres.ShapeType.rect, { x: 0.5, y: 1.3 + i * 0.55, w: 0.32, h: 0.32, fill: { color: C.teal }, line: { color: C.teal }, rounding: "50%" });
    s.addText(String(i + 1), { x: 0.5, y: 1.3 + i * 0.55, w: 0.32, h: 0.32, fontSize: 11, bold: true, color: C.white, align: "center", valign: "middle" });
    s.addText(t, { x: 0.95, y: 1.32 + i * 0.55, w: 3.9, h: 0.3, fontSize: 13, color: C.offWhite });
  });

  col2.forEach((t, i) => {
    s.addShape(pres.ShapeType.rect, { x: 5.2, y: 1.3 + i * 0.55, w: 0.32, h: 0.32, fill: { color: C.gold }, line: { color: C.gold }, rounding: "50%" });
    s.addText(String(i + 7), { x: 5.2, y: 1.3 + i * 0.55, w: 0.32, h: 0.32, fontSize: 11, bold: true, color: C.navy, align: "center", valign: "middle" });
    s.addText(t, { x: 5.65, y: 1.32 + i * 0.55, w: 3.9, h: 0.3, fontSize: 13, color: C.offWhite });
  });
}

// ─── SLIDE 3: Definition & Classification ─────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Definition & Classification");
  addSlideTitle(s, "Definition & Classification");

  // Table
  const rows = [
    [{ text: "Category", options: { bold: true, color: C.navy, fill: C.gold } }, { text: "Systolic (mmHg)", options: { bold: true, color: C.navy, fill: C.gold } }, { text: "Diastolic (mmHg)", options: { bold: true, color: C.navy, fill: C.gold } }],
    ["Normal", "< 120", "< 80"],
    ["Elevated", "120 – 129", "< 80"],
    ["Stage 1 HTN", "130 – 139", "80 – 89"],
    ["Stage 2 HTN", "≥ 140", "≥ 90"],
    ["Hypertensive Crisis", "≥ 180", "≥ 120"],
  ];

  s.addTable(rows, {
    x: 0.5, y: 1.3, w: 9, colW: [3.2, 2.9, 2.9],
    fontSize: 14,
    color: C.white,
    fill: { color: "112B45" },
    border: { type: "solid", color: C.teal, pt: 1 },
    rowH: 0.48,
    align: "center",
    valign: "middle",
  });

  s.addText("ACC/AHA 2017 Guidelines Classification", {
    x: 0.5, y: 4.55, w: 9, h: 0.3,
    fontSize: 11, color: C.lightGray, italic: true, align: "right",
  });
}

// ─── SLIDE 4: Epidemiology ────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Epidemiology");
  addSlideTitle(s, "Epidemiology & Global Burden");

  // Stat boxes
  const stats = [
    { val: "1.28B", label: "Adults affected worldwide", color: C.teal },
    { val: "30–45%", label: "Prevalence in adults globally", color: C.gold },
    { val: "46%", label: "Adults unaware of their diagnosis", color: C.red },
    { val: "#1", label: "Risk factor for cardiovascular death", color: C.tealLight },
  ];

  stats.forEach((st, i) => {
    const x = 0.4 + i * 2.3;
    s.addShape(pres.ShapeType.rect, { x, y: 1.35, w: 2.1, h: 1.9, fill: { color: "0E2F4A" }, line: { color: st.color, pt: 2 } });
    s.addText(st.val, { x, y: 1.55, w: 2.1, h: 0.75, fontSize: 30, bold: true, color: st.color, align: "center" });
    s.addText(st.label, { x, y: 2.35, w: 2.1, h: 0.75, fontSize: 11, color: C.offWhite, align: "center", valign: "top" });
  });

  s.addText("Key Risk Factors:", { x: 0.5, y: 3.45, w: 9, h: 0.3, fontSize: 14, bold: true, color: C.gold });
  addBullets(s, [
    "Age (risk doubles with each decade after 55)",
    "Family history & genetic predisposition",
    "Obesity, sedentary lifestyle, high sodium intake",
    "Diabetes mellitus, chronic kidney disease, OSA",
  ], { y: 3.75, h: 1.6, fontSize: 14 });
}

// ─── SLIDE 5: Pathophysiology ─────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Pathophysiology");
  addSlideTitle(s, "Pathophysiology");

  // Two columns: mechanisms and RAAS
  s.addText("Primary Mechanisms", { x: 0.4, y: 1.25, w: 4.3, h: 0.35, fontSize: 14, bold: true, color: C.tealLight });
  addBullets(s, [
    { text: "Increased Cardiac Output", sub: ["↑ HR, ↑ stroke volume, volume overload"] },
    { text: "Increased Peripheral Resistance", sub: ["Arteriolar vasoconstriction, vascular remodeling"] },
    { text: "RAAS Activation", sub: ["Angiotensin II → vasoconstriction + aldosterone release"] },
    { text: "Sympathetic Overactivity", sub: ["↑ Catecholamines → ↑ HR and vascular tone"] },
  ], { x: 0.4, y: 1.6, w: 4.4, h: 3.6, fontSize: 13 });

  s.addShape(pres.ShapeType.rect, { x: 5.0, y: 1.25, w: 0.04, h: 3.8, fill: { color: C.teal }, line: { color: C.teal } });

  s.addText("Secondary Causes", { x: 5.2, y: 1.25, w: 4.3, h: 0.35, fontSize: 14, bold: true, color: C.gold });
  addBullets(s, [
    "Renovascular disease (renal artery stenosis)",
    "Primary hyperaldosteronism (Conn's syndrome)",
    "Pheochromocytoma",
    "Obstructive Sleep Apnea",
    "Thyroid / parathyroid disorders",
    "Drug-induced (NSAIDs, OCP, decongestants)",
  ], { x: 5.2, y: 1.6, w: 4.4, h: 3.6, fontSize: 13 });
}

// ─── SLIDE 6: Diagnosis ───────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Diagnosis");
  addSlideTitle(s, "Clinical Evaluation & Diagnosis");

  addBullets(s, [
    { text: "Accurate BP Measurement", sub: ["Seated ×2, rested 5 min, both arms; use calibrated device"] },
    { text: "History", sub: ["Duration, medications, family history, lifestyle, secondary cause symptoms"] },
    { text: "Physical Examination", sub: ["BMI, waist circumference, fundoscopy, thyroid, bruits, edema"] },
    { text: "Basic Investigations", sub: ["Urinalysis, eGFR, serum electrolytes, lipid profile, fasting glucose, ECG"] },
    { text: "Confirm with ABPM / HBPM", sub: ["Recommended before initiating therapy in suspected white-coat HTN"] },
  ], { y: 1.3, h: 3.9, fontSize: 15 });
}

// ─── SLIDE 7: ABPM & HBPM ────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Monitoring");
  addSlideTitle(s, "Ambulatory & Home BP Monitoring");

  // Two panels
  const panels = [
    {
      title: "ABPM (Ambulatory)",
      color: C.teal,
      items: [
        "24-hour automatic readings (day/night)",
        "Identifies white-coat & masked HTN",
        "Detects non-dipping pattern (↑ CV risk)",
        "Daytime avg ≥ 135/85 = HTN",
        "Nighttime avg ≥ 120/70 = HTN",
        "Gold standard for HTN diagnosis",
      ],
    },
    {
      title: "HBPM (Home)",
      color: C.gold,
      items: [
        "Patient self-monitoring twice daily × 7 days",
        "Morning & evening readings before meds",
        "Average of all readings used",
        "Threshold: ≥ 135/85 mmHg = HTN",
        "Improves adherence and patient engagement",
        "Useful for long-term treatment monitoring",
      ],
    },
  ];

  panels.forEach((p, i) => {
    const x = 0.4 + i * 4.9;
    s.addShape(pres.ShapeType.rect, { x, y: 1.25, w: 4.5, h: 0.45, fill: { color: p.color }, line: { color: p.color } });
    s.addText(p.title, { x, y: 1.25, w: 4.5, h: 0.45, fontSize: 15, bold: true, color: C.navy, align: "center", valign: "middle" });
    const textItems = p.items.map((item, idx) => ({
      text: item,
      options: { bullet: { code: "25CF", color: p.color }, breakLine: idx < p.items.length - 1, fontSize: 13, color: C.offWhite, paraSpaceAfter: 5 },
    }));
    s.addShape(pres.ShapeType.rect, { x, y: 1.7, w: 4.5, h: 3.4, fill: { color: "0E2F4A" }, line: { color: p.color, pt: 1 } });
    s.addText(textItems, { x: x + 0.15, y: 1.8, w: 4.2, h: 3.2, valign: "top" });
  });
}

// ─── SLIDE 8: Target Organ Damage ─────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Complications");
  addSlideTitle(s, "Target Organ Damage");

  const organs = [
    { organ: "🫀 Heart", items: ["LV hypertrophy", "Coronary artery disease", "Heart failure"] },
    { organ: "🧠 Brain", items: ["Stroke (ischemic & hemorrhagic)", "Hypertensive encephalopathy", "Cognitive decline / dementia"] },
    { organ: "🫘 Kidneys", items: ["Nephrosclerosis", "CKD progression", "Proteinuria"] },
    { organ: "👁 Eyes", items: ["Hypertensive retinopathy", "Arteriovenous nicking", "Papilledema (crisis)"] },
    { organ: "🩸 Vasculature", items: ["Aortic dissection", "Peripheral artery disease", "Aneurysm formation"] },
  ];

  organs.forEach((o, i) => {
    const col = i < 3 ? 0 : 1;
    const row = i < 3 ? i : i - 3;
    const x = 0.4 + col * 5.0;
    const y = 1.35 + row * 1.35;
    s.addShape(pres.ShapeType.rect, { x, y, w: 4.5, h: 1.2, fill: { color: "0E2F4A" }, line: { color: C.teal, pt: 1 } });
    s.addText(o.organ, { x: x + 0.12, y: y + 0.05, w: 4.2, h: 0.3, fontSize: 13, bold: true, color: C.tealLight });
    s.addText(o.items.join("  •  "), { x: x + 0.12, y: y + 0.38, w: 4.2, h: 0.65, fontSize: 11.5, color: C.lightGray });
  });
}

// ─── SLIDE 9: Treatment Goals ─────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Treatment Goals");
  addSlideTitle(s, "Treatment Goals");

  const goals = [
    { group: "General Adults (< 65 yrs)", target: "< 130/80 mmHg", color: C.teal },
    { group: "Older Adults (≥ 65 yrs)", target: "< 130/80 mmHg*", color: C.teal },
    { group: "Diabetes Mellitus", target: "< 130/80 mmHg", color: C.gold },
    { group: "Chronic Kidney Disease", target: "< 130/80 mmHg", color: C.gold },
    { group: "High CV Risk (≥10% 10-yr)", target: "< 130/80 mmHg", color: C.tealLight },
    { group: "Pregnancy", target: "< 140/90 mmHg", color: C.red },
  ];

  goals.forEach((g, i) => {
    const col = i % 2;
    const row = Math.floor(i / 2);
    const x = 0.4 + col * 4.8;
    const y = 1.35 + row * 1.2;
    s.addShape(pres.ShapeType.rect, { x, y, w: 4.5, h: 1.0, fill: { color: "0E2F4A" }, line: { color: g.color, pt: 2 } });
    s.addText(g.group, { x: x + 0.15, y: y + 0.08, w: 3.8, h: 0.35, fontSize: 13, color: C.offWhite });
    s.addText("Target: " + g.target, { x: x + 0.15, y: y + 0.52, w: 3.8, h: 0.35, fontSize: 14, bold: true, color: g.color });
  });

  s.addText("*Individualize based on frailty, comorbidities, and tolerability", {
    x: 0.5, y: 5.15, w: 9, h: 0.25,
    fontSize: 10, color: C.lightGray, italic: true,
  });
}

// ─── SLIDE 10: Pharmacological Management ─────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Pharmacotherapy");
  addSlideTitle(s, "Pharmacological Management");

  const drugs = [
    [{ text: "Drug Class", options: { bold: true, color: C.navy, fill: C.gold } }, { text: "Examples", options: { bold: true, color: C.navy, fill: C.gold } }, { text: "Key Indications", options: { bold: true, color: C.navy, fill: C.gold } }],
    ["ACE Inhibitors", "Lisinopril, Ramipril", "DM, CKD, HFrEF, post-MI"],
    ["ARBs", "Losartan, Valsartan", "ACE inhibitor intolerance, DM, CKD"],
    ["CCBs", "Amlodipine, Diltiazem", "Elderly, isolated systolic HTN, angina"],
    ["Thiazide Diuretics", "Hydrochlorothiazide, Chlorthalidone", "First-line, volume overload, elderly"],
    ["Beta-Blockers", "Metoprolol, Carvedilol", "HF, post-MI, arrhythmias, angina"],
    ["Aldosterone Antagonists", "Spironolactone, Eplerenone", "Resistant HTN, HFrEF, hyperaldosteronism"],
  ];

  s.addTable(drugs, {
    x: 0.3, y: 1.3, w: 9.4, colW: [2.9, 3.0, 3.5],
    fontSize: 12,
    color: C.white,
    fill: { color: "0E2F4A" },
    border: { type: "solid", color: C.teal, pt: 1 },
    rowH: 0.42,
    valign: "middle",
  });
}

// ─── SLIDE 11: Non-Pharmacological Interventions ──────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Lifestyle");
  addSlideTitle(s, "Non-Pharmacological Interventions");

  const measures = [
    { icon: "🥗", title: "DASH Diet", detail: "↓ SBP 8–14 mmHg\nFruits, vegetables, low-fat dairy, reduced sodium" },
    { icon: "🏃", title: "Physical Activity", detail: "↓ SBP 4–9 mmHg\n150 min/wk moderate aerobic exercise" },
    { icon: "⚖️", title: "Weight Loss", detail: "↓ SBP ~1 mmHg / kg lost\nTarget BMI < 25 kg/m²" },
    { icon: "🚭", title: "Sodium Restriction", detail: "↓ SBP 2–8 mmHg\n< 2.3 g sodium/day (ideally < 1.5 g)" },
    { icon: "🍺", title: "Alcohol Moderation", detail: "↓ SBP 2–4 mmHg\n≤ 1 drink/day (women), ≤ 2 (men)" },
    { icon: "🚬", title: "Smoking Cessation", detail: "Reduces CV risk directly\nNicotine raises BP acutely" },
  ];

  measures.forEach((m, i) => {
    const col = i % 3;
    const row = Math.floor(i / 3);
    const x = 0.3 + col * 3.22;
    const y = 1.3 + row * 2.0;
    s.addShape(pres.ShapeType.rect, { x, y, w: 3.0, h: 1.8, fill: { color: "0E2F4A" }, line: { color: C.teal, pt: 1 } });
    s.addText(m.icon + "  " + m.title, { x: x + 0.12, y: y + 0.1, w: 2.76, h: 0.4, fontSize: 14, bold: true, color: C.tealLight });
    s.addText(m.detail, { x: x + 0.12, y: y + 0.55, w: 2.76, h: 1.1, fontSize: 11.5, color: C.lightGray });
  });
}

// ─── SLIDE 12: Hypertensive Urgency & Emergency ───────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Hypertensive Crisis");
  addSlideTitle(s, "Hypertensive Urgency & Emergency");

  s.addShape(pres.ShapeType.rect, { x: 0.4, y: 1.3, w: 4.4, h: 0.42, fill: { color: C.gold }, line: { color: C.gold } });
  s.addText("URGENCY  (≥ 180/120, no TOD)", { x: 0.4, y: 1.3, w: 4.4, h: 0.42, fontSize: 13, bold: true, color: C.navy, align: "center", valign: "middle" });
  addBullets(s, [
    "No acute target organ damage",
    "Oral therapy: Labetalol, Amlodipine, Captopril",
    "Gradual BP reduction over 24–48 hours",
    "Outpatient management usually appropriate",
    "Identify and treat precipitating cause",
  ], { x: 0.4, y: 1.75, w: 4.4, h: 3.4, fontSize: 13 });

  s.addShape(pres.ShapeType.rect, { x: 5.2, y: 1.3, w: 4.4, h: 0.42, fill: { color: C.red }, line: { color: C.red } });
  s.addText("EMERGENCY  (≥ 180/120 + TOD)", { x: 5.2, y: 1.3, w: 4.4, h: 0.42, fontSize: 13, bold: true, color: C.white, align: "center", valign: "middle" });
  addBullets(s, [
    "Acute TOD: ACS, stroke, aortic dissection, flash pulmonary edema, PRES",
    "IV therapy: Nitroprusside, Labetalol, Nicardipine, Clevidipine",
    "Reduce MAP by ≤ 25% in first hour",
    "ICU admission required",
    "Further reduction over 24–48 hrs (except aortic dissection: aggressive)",
  ], { x: 5.2, y: 1.75, w: 4.4, h: 3.4, fontSize: 13 });
}

// ─── SLIDE 13: Special Populations ───────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Special Populations");
  addSlideTitle(s, "Special Populations");

  addBullets(s, [
    { text: "Elderly (≥ 65 yrs)", sub: ["Target < 130/80 if tolerated; watch for orthostatic hypotension; start low, go slow"] },
    { text: "Chronic Kidney Disease", sub: ["ACE inhibitor or ARB preferred; target < 130/80; avoid dual RAAS blockade"] },
    { text: "Diabetes Mellitus", sub: ["ACE inhibitor/ARB first-line; target < 130/80 mmHg"] },
    { text: "Heart Failure", sub: ["ACE inhibitor/ARB/ARNI + Beta-blocker + MRA + SGLT2i (HFrEF)"] },
    { text: "Pregnancy", sub: ["Methyldopa, Labetalol, Nifedipine are safe; avoid ACEi/ARBs; target < 140/90"] },
    { text: "Resistant Hypertension", sub: ["Confirm adherence & rule out secondary causes; add spironolactone or alpha/beta-blocker"] },
  ], { y: 1.3, h: 3.9, fontSize: 14 });
}

// ─── SLIDE 14: Key Takeaways ──────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  addSectionLabel(s, "Summary");
  addSlideTitle(s, "Key Takeaways");

  const points = [
    "HTN affects >1.28 billion adults — most are undiagnosed or undertreated",
    "Confirm diagnosis with ABPM or HBPM before initiating lifelong therapy",
    "Treatment goal is < 130/80 mmHg for most patients",
    "Lifestyle modification is the foundation of all treatment",
    "First-line agents: ACEi/ARB, CCB, or Thiazide diuretic (often combined)",
    "Hypertensive emergency requires IV therapy with controlled MAP reduction in ICU",
    "Individualize management in elderly, CKD, pregnancy, and HF",
  ];

  points.forEach((p, i) => {
    s.addShape(pres.ShapeType.rect, { x: 0.4, y: 1.3 + i * 0.58, w: 0.45, h: 0.38, fill: { color: C.gold }, line: { color: C.gold } });
    s.addText(String(i + 1), { x: 0.4, y: 1.3 + i * 0.58, w: 0.45, h: 0.38, fontSize: 14, bold: true, color: C.navy, align: "center", valign: "middle" });
    s.addText(p, { x: 1.0, y: 1.32 + i * 0.58, w: 8.6, h: 0.36, fontSize: 13.5, color: C.offWhite, valign: "middle" });
  });
}

// ─── SLIDE 15: Thank You ──────────────────────────────────────────────────────
{
  const s = pres.addSlide();
  darkBG(s);
  s.addShape(pres.ShapeType.rect, { x: 0, y: 0, w: 0.18, h: 5.625, fill: { color: C.teal }, line: { color: C.teal } });
  s.addShape(pres.ShapeType.rect, { x: 0.18, y: 0, w: 0.06, h: 5.625, fill: { color: C.gold }, line: { color: C.gold } });

  s.addText("Thank You", {
    x: 0.5, y: 1.5, w: 9, h: 1.0,
    fontSize: 52, bold: true, color: C.white, align: "center",
  });
  s.addShape(pres.ShapeType.rect, { x: 3.5, y: 2.55, w: 3.0, h: 0.06, fill: { color: C.gold }, line: { color: C.gold } });
  s.addText("Questions & Discussion", {
    x: 0.5, y: 2.75, w: 9, h: 0.5,
    fontSize: 22, color: C.tealLight, align: "center",
  });
  s.addText("References: ACC/AHA 2017 HTN Guidelines  |  ESC/ESH 2023 HTN Guidelines  |  JNC 8", {
    x: 0.5, y: 4.8, w: 9, h: 0.35,
    fontSize: 10, color: C.slate, align: "center", italic: true,
  });
}

// ─── Write file ───────────────────────────────────────────────────────────────
pres.writeFile({ fileName: "/home/daytona/workspace/hypertension-ppt/Hypertension_Diagnosis_Management.pptx" })
  .then(() => console.log("✅ PPTX created successfully!"))
  .catch(err => { console.error("❌ Error:", err); process.exit(1); });