const pptxgen = require("pptxgenjs");
const { execSync } = require("child_process");

const pres = new pptxgen();
pres.layout = "LAYOUT_16x9";
pres.author = "Intern Doctor";
pres.title = "Management of the Third Stage of Labour";

// ─── COLOUR PALETTE ──────────────────────────────────────────────────────────
const DARK_BLUE   = "0D2B55";  // dominant dark background
const MID_BLUE    = "1A4A8A";  // secondary panels
const ACCENT_TEAL = "00C2A0";  // accent / highlight
const ACCENT_GOLD = "F4C430";  // accent numbers / icons
const WHITE       = "FFFFFF";
const LIGHT_GRAY  = "E8F0F7";
const TEXT_DARK   = "1A1A2E";
const TEXT_LIGHT  = "CBD8E8";

// ─── HELPERS ─────────────────────────────────────────────────────────────────
function addDarkSlide(pres) {
  const slide = pres.addSlide();
  slide.background = { color: DARK_BLUE };
  return slide;
}
function addLightSlide(pres) {
  const slide = pres.addSlide();
  slide.background = { color: LIGHT_GRAY };
  return slide;
}
function accentBar(slide, color = ACCENT_TEAL) {
  slide.addShape(pres.ShapeType.rect, { x: 0, y: 5.25, w: 10, h: 0.375, fill: { color } });
}
function sectionBadge(slide, text) {
  slide.addShape(pres.ShapeType.roundRect, {
    x: 0.3, y: 0.15, w: 2.2, h: 0.38, fill: { color: ACCENT_TEAL }, rectRadius: 0.08,
    line: { color: ACCENT_TEAL }
  });
  slide.addText(text, {
    x: 0.3, y: 0.15, w: 2.2, h: 0.38,
    fontSize: 9, bold: true, color: DARK_BLUE, align: "center", valign: "middle", margin: 0
  });
}
function slideNumber(slide, num) {
  slide.addText(`${num}`, {
    x: 9.4, y: 5.2, w: 0.5, h: 0.3,
    fontSize: 9, color: TEXT_LIGHT, align: "right"
  });
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 1 — TITLE SLIDE
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);

  // Left bold strip
  slide.addShape(pres.ShapeType.rect, { x: 0, y: 0, w: 0.18, h: 5.625, fill: { color: ACCENT_TEAL } });

  // Decorative circles
  slide.addShape(pres.ShapeType.ellipse, { x: 7.8, y: -0.5, w: 3.5, h: 3.5, fill: { color: MID_BLUE }, line: { color: MID_BLUE } });
  slide.addShape(pres.ShapeType.ellipse, { x: 8.4, y: 3.5, w: 2.2, h: 2.2, fill: { color: "0A1E40" }, line: { color: "0A1E40" } });
  slide.addShape(pres.ShapeType.ellipse, { x: 6.5, y: 4.0, w: 1.2, h: 1.2, fill: { color: ACCENT_TEAL }, line: { color: ACCENT_TEAL } });

  // Subtitle tag
  slide.addShape(pres.ShapeType.roundRect, {
    x: 0.5, y: 0.55, w: 3.8, h: 0.42, fill: { color: ACCENT_TEAL }, rectRadius: 0.08, line: { color: ACCENT_TEAL }
  });
  slide.addText("OBSTETRICS | INTERN PRESENTATION", {
    x: 0.5, y: 0.55, w: 3.8, h: 0.42,
    fontSize: 9.5, bold: true, color: DARK_BLUE, align: "center", valign: "middle", margin: 0, charSpacing: 1.5
  });

  // Main title
  slide.addText("Management of the", {
    x: 0.45, y: 1.15, w: 7.5, h: 0.6,
    fontSize: 20, color: TEXT_LIGHT, bold: false
  });
  slide.addText("3rd Stage", {
    x: 0.45, y: 1.65, w: 7.5, h: 1.1,
    fontSize: 58, color: WHITE, bold: true, charSpacing: -1
  });
  slide.addText("of Labour", {
    x: 0.45, y: 2.65, w: 7.5, h: 0.75,
    fontSize: 34, color: ACCENT_TEAL, bold: true
  });

  // Divider
  slide.addShape(pres.ShapeType.line, { x: 0.45, y: 3.5, w: 5.5, h: 0, line: { color: ACCENT_GOLD, width: 2 } });

  // Sub-info
  slide.addText("From Birth of Baby to Delivery of Placenta & Membranes", {
    x: 0.45, y: 3.65, w: 7.2, h: 0.4,
    fontSize: 12, color: TEXT_LIGHT, italic: true
  });

  slide.addText("Presented by: Intern Doctor  |  Department of Obstetrics & Gynaecology", {
    x: 0.45, y: 5.0, w: 8, h: 0.35,
    fontSize: 9, color: TEXT_LIGHT
  });
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 2 — OVERVIEW / AGENDA
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);
  sectionBadge(slide, "AGENDA");
  slideNumber(slide, 2);

  slide.addText("What We Will Cover", {
    x: 0.4, y: 0.62, w: 9, h: 0.65,
    fontSize: 28, bold: true, color: WHITE
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 3.5, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  const items = [
    ["01", "Definition & Duration of the 3rd Stage"],
    ["02", "Signs of Placental Separation"],
    ["03", "Active Management of the 3rd Stage (AMTSL)"],
    ["04", "Uterotonic Drugs – Oxytocin & Alternatives"],
    ["05", "Controlled Cord Traction (CCT)"],
    ["06", "Uterine Massage"],
    ["07", "Complications – Postpartum Haemorrhage (PPH)"],
    ["08", "Video Summary – AMTSL in Practice"],
  ];

  items.forEach(([num, label], i) => {
    const row = Math.floor(i / 2);
    const col = i % 2;
    const x = col === 0 ? 0.4 : 5.2;
    const y = 1.5 + row * 0.88;

    slide.addShape(pres.ShapeType.rect, { x, y, w: 0.42, h: 0.52, fill: { color: ACCENT_TEAL }, line: { color: ACCENT_TEAL } });
    slide.addText(num, { x, y, w: 0.42, h: 0.52, fontSize: 10, bold: true, color: DARK_BLUE, align: "center", valign: "middle", margin: 0 });
    slide.addText(label, { x: x + 0.5, y: y + 0.04, w: 4.1, h: 0.45, fontSize: 11, color: WHITE, valign: "middle" });
  });

  accentBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 3 — DEFINITION
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addLightSlide(pres);
  sectionBadge(slide, "DEFINITION");
  slideNumber(slide, 3);

  slide.addText("What Is the 3rd Stage of Labour?", {
    x: 0.4, y: 0.62, w: 9, h: 0.65,
    fontSize: 26, bold: true, color: TEXT_DARK
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 4, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  // Big definition box
  slide.addShape(pres.ShapeType.rect, { x: 0.4, y: 1.45, w: 9.2, h: 1.05, fill: { color: MID_BLUE }, line: { color: MID_BLUE } });
  slide.addText("The period from delivery of the baby to the complete expulsion of the placenta and membranes.", {
    x: 0.45, y: 1.48, w: 9.1, h: 0.99,
    fontSize: 14.5, color: WHITE, bold: true, italic: true, valign: "middle", align: "center"
  });

  // Duration cards
  const cards = [
    { label: "Normal Duration", val: "5 – 30 min", color: ACCENT_TEAL },
    { label: "Prolonged (3rd stage)", val: "> 30 min", color: "E05C00" },
    { label: "Rare — Pathological", val: "> 60 min", color: "B00020" },
  ];
  cards.forEach((c, i) => {
    const x = 0.4 + i * 3.1;
    slide.addShape(pres.ShapeType.roundRect, { x, y: 2.72, w: 2.9, h: 1.25, fill: { color: c.color }, rectRadius: 0.12, line: { color: c.color } });
    slide.addText(c.label, { x, y: 2.76, w: 2.9, h: 0.5, fontSize: 10.5, bold: true, color: WHITE, align: "center", valign: "middle" });
    slide.addText(c.val, { x, y: 3.2, w: 2.9, h: 0.7, fontSize: 18, bold: true, color: WHITE, align: "center", valign: "middle" });
  });

  // Two mechanisms
  slide.addText("Two Mechanisms of Placental Separation:", {
    x: 0.4, y: 4.1, w: 9, h: 0.35, fontSize: 12, bold: true, color: TEXT_DARK
  });
  slide.addText([
    { text: "Schultze mechanism", options: { bold: true, color: MID_BLUE } },
    { text: "  —  Foetal surface presents first (most common, ~80%)", options: { color: TEXT_DARK } },
  ], { x: 0.4, y: 4.45, w: 9, h: 0.35, fontSize: 11 });
  slide.addText([
    { text: "Matthews Duncan mechanism", options: { bold: true, color: "E05C00" } },
    { text: "  —  Maternal surface / edge first (~20%)", options: { color: TEXT_DARK } },
  ], { x: 0.4, y: 4.82, w: 9, h: 0.35, fontSize: 11 });

  accentBar(slide, MID_BLUE);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 4 — SIGNS OF PLACENTAL SEPARATION
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);
  sectionBadge(slide, "ASSESSMENT");
  slideNumber(slide, 4);

  slide.addText("Signs of Placental Separation", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 28, bold: true, color: WHITE
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 4.5, h: 0, line: { color: ACCENT_GOLD, width: 2.5 } });

  const signs = [
    { icon: "🔴", title: "Gush of Blood", desc: "Sudden gush of blood as placenta separates from uterine wall" },
    { icon: "🔵", title: "Cord Lengthening", desc: "Umbilical cord protrudes further out of the vaginal introitus" },
    { icon: "🟢", title: "Uterine Globularity", desc: "Uterus becomes globular, firm, and contracted (fundal rise)" },
    { icon: "🟡", title: "Fundal Rise", desc: "Fundus rises to the level of the umbilicus as placenta enters lower segment" },
  ];

  signs.forEach((s, i) => {
    const x = i < 2 ? 0.4 : 5.2;
    const y = i < 2 ? 1.55 + i * 1.5 : 1.55 + (i - 2) * 1.5;
    slide.addShape(pres.ShapeType.roundRect, {
      x, y, w: 4.5, h: 1.3, fill: { color: MID_BLUE }, rectRadius: 0.15, line: { color: "1D5599" }
    });
    slide.addText(s.icon, { x: x + 0.15, y: y + 0.1, w: 0.65, h: 0.65, fontSize: 26, align: "center" });
    slide.addText(s.title, { x: x + 0.85, y: y + 0.1, w: 3.5, h: 0.42, fontSize: 13, bold: true, color: ACCENT_TEAL });
    slide.addText(s.desc, { x: x + 0.85, y: y + 0.52, w: 3.5, h: 0.65, fontSize: 10.5, color: TEXT_LIGHT, valign: "top" });
  });

  accentBar(slide, ACCENT_GOLD);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 5 — ACTIVE MANAGEMENT (AMTSL) OVERVIEW
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addLightSlide(pres);
  sectionBadge(slide, "AMTSL");
  slideNumber(slide, 5);

  slide.addText("Active Management of the 3rd Stage (AMTSL)", {
    x: 0.4, y: 0.62, w: 9.2, h: 0.65, fontSize: 22, bold: true, color: TEXT_DARK
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 6, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  // Intro banner
  slide.addShape(pres.ShapeType.rect, { x: 0.4, y: 1.42, w: 9.2, h: 0.78, fill: { color: DARK_BLUE }, line: { color: DARK_BLUE } });
  slide.addText("AMTSL reduces PPH risk by up to 60% and is the WHO-recommended standard of care", {
    x: 0.4, y: 1.42, w: 9.2, h: 0.78, fontSize: 13, color: WHITE, bold: true, align: "center", valign: "middle"
  });

  // 3 pillars
  const pillars = [
    { num: "1", title: "Uterotonic Drug", sub: "Oxytocin 10 IU IM\nWithin 1 min of birth", color: ACCENT_TEAL },
    { num: "2", title: "Controlled Cord\nTraction (CCT)", sub: "Brandt-Andrews method\nOnly after separation signs", color: MID_BLUE },
    { num: "3", title: "Uterine Massage", sub: "After placenta delivery\nBimanual if needed for atony", color: "6B4EAE" },
  ];

  pillars.forEach((p, i) => {
    const x = 0.4 + i * 3.1;
    // Top coloured number block
    slide.addShape(pres.ShapeType.rect, { x, y: 2.38, w: 2.85, h: 0.62, fill: { color: p.color }, line: { color: p.color } });
    slide.addText(`STEP ${p.num}`, { x, y: 2.38, w: 2.85, h: 0.62, fontSize: 14, bold: true, color: WHITE, align: "center", valign: "middle" });
    // Content block
    slide.addShape(pres.ShapeType.rect, { x, y: 3.0, w: 2.85, h: 1.62, fill: { color: WHITE }, line: { color: p.color, width: 1.5 } });
    slide.addText(p.title, { x: x + 0.1, y: 3.08, w: 2.65, h: 0.56, fontSize: 12.5, bold: true, color: p.color, align: "center" });
    slide.addShape(pres.ShapeType.line, { x: x + 0.2, y: 3.64, w: 2.45, h: 0, line: { color: LIGHT_GRAY, width: 1 } });
    slide.addText(p.sub, { x: x + 0.1, y: 3.7, w: 2.65, h: 0.85, fontSize: 10, color: TEXT_DARK, align: "center", valign: "middle" });
  });

  accentBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 6 — UTEROTONICS
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);
  sectionBadge(slide, "PHARMACOLOGY");
  slideNumber(slide, 6);

  slide.addText("Uterotonic Drugs", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 28, bold: true, color: WHITE
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 3, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  const drugs = [
    {
      name: "Oxytocin", color: ACCENT_TEAL, badge: "FIRST LINE",
      rows: [
        ["Dose", "10 IU IM  (or 20 IU in 1L NS IV infusion)"],
        ["Timing", "Within 1 min of delivery of anterior shoulder"],
        ["Action", "Stimulates myometrial contraction"],
        ["Note", "No absolute C/I; bolus IV can cause hypotension"],
      ]
    },
    {
      name: "Ergometrine / Methylergometrine", color: ACCENT_GOLD, badge: "SECOND LINE",
      rows: [
        ["Dose", "0.2 mg IM"],
        ["Action", "Sustained uterine contraction"],
        ["C/I", "Hypertension, pre-eclampsia, heart disease"],
        ["Note", "Never give IV — risk of severe HTN & CNS spasm"],
      ]
    },
    {
      name: "Carboprost (15-methyl PGF2α)", color: "E05C00", badge: "REFRACTORY PPH",
      rows: [
        ["Dose", "250 μg IM, repeat every 15-90 min (max 8 doses)"],
        ["Action", "Potent uterotonic prostaglandin"],
        ["C/I", "Asthma, cardiovascular disease"],
        ["Note", "Use if oxytocin + ergometrine fail"],
      ]
    },
  ];

  drugs.forEach((d, i) => {
    const x = i < 2 ? 0.35 + i * 4.85 : 0.35;
    const y = i < 2 ? 1.48 : 3.68;
    const w = i < 2 ? 4.6 : 9.25;

    slide.addShape(pres.ShapeType.rect, { x, y, w, h: i < 2 ? 1.98 : 1.65, fill: { color: MID_BLUE }, line: { color: d.color, width: 1.5 } });
    slide.addShape(pres.ShapeType.rect, { x, y, w: i < 2 ? 1.5 : 2.2, h: 0.38, fill: { color: d.color }, line: { color: d.color } });
    slide.addText(d.badge, { x, y, w: i < 2 ? 1.5 : 2.2, h: 0.38, fontSize: 8, bold: true, color: DARK_BLUE, align: "center", valign: "middle", margin: 0 });
    slide.addText(d.name, { x: x + (i < 2 ? 1.6 : 2.3), y, w: w - (i < 2 ? 1.65 : 2.35), h: 0.38, fontSize: 11, bold: true, color: WHITE, valign: "middle" });

    d.rows.forEach((r, ri) => {
      const ry = y + 0.45 + ri * 0.35;
      slide.addText(`${r[0]}:`, { x: x + 0.12, y: ry, w: i < 2 ? 0.7 : 1.0, h: 0.32, fontSize: 9, bold: true, color: d.color });
      slide.addText(r[1], { x: x + (i < 2 ? 0.85 : 1.15), y: ry, w: w - (i < 2 ? 1.0 : 1.3), h: 0.32, fontSize: 9, color: TEXT_LIGHT });
    });
  });

  accentBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 7 — CCT (Controlled Cord Traction)
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addLightSlide(pres);
  sectionBadge(slide, "PROCEDURE");
  slideNumber(slide, 7);

  slide.addText("Controlled Cord Traction (CCT)", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 27, bold: true, color: TEXT_DARK
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 5, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  slide.addText("Also known as the Brandt-Andrews Method", {
    x: 0.4, y: 1.35, w: 9, h: 0.38, fontSize: 11.5, color: MID_BLUE, italic: true
  });

  const steps = [
    "Wait for signs of placental separation before applying traction.",
    "Clamp the cord close to the perineum, hold it in one hand.",
    "Place the other hand suprapubically — guard the uterus in the cephalad direction (counter-traction).",
    "Apply steady, gentle downward traction on the cord during a contraction.",
    "If placenta does not descend in 30–40 s, STOP — wait for next contraction.",
    "As placenta reaches introitus, lift it upward and out. Twist gently to deliver membranes.",
    "NEVER apply forceful traction — risk of cord avulsion or uterine inversion.",
  ];

  steps.forEach((s, i) => {
    const y = 1.78 + i * 0.51;
    slide.addShape(pres.ShapeType.ellipse, { x: 0.38, y: y + 0.05, w: 0.36, h: 0.36,
      fill: { color: i === 6 ? "B00020" : ACCENT_TEAL }, line: { color: i === 6 ? "B00020" : ACCENT_TEAL } });
    slide.addText(`${i + 1}`, { x: 0.38, y: y + 0.05, w: 0.36, h: 0.36, fontSize: 10, bold: true, color: WHITE, align: "center", valign: "middle", margin: 0 });
    slide.addText(s, {
      x: 0.85, y, w: 8.75, h: 0.46, fontSize: i === 6 ? 11 : 10.5,
      color: i === 6 ? "B00020" : TEXT_DARK, bold: i === 6, valign: "middle"
    });
  });

  accentBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 8 — UTERINE MASSAGE & EXAMINATION
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);
  sectionBadge(slide, "POST-DELIVERY");
  slideNumber(slide, 8);

  slide.addText("Uterine Massage & Post-Delivery Checks", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 24, bold: true, color: WHITE
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 6, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

  // Left panel - massage
  slide.addShape(pres.ShapeType.rect, { x: 0.35, y: 1.45, w: 4.6, h: 3.55, fill: { color: MID_BLUE }, line: { color: ACCENT_TEAL, width: 1 } });
  slide.addText("🖐  Uterine Massage", { x: 0.45, y: 1.55, w: 4.4, h: 0.5, fontSize: 14, bold: true, color: ACCENT_TEAL });
  const massagePoints = [
    "Fundal massage routinely after placenta delivery",
    "Check uterus is 'well-contracted' (firm, midline, at umbilicus)",
    "Bimanual compression if uterine atony suspected",
    "Sustained massage for 15 sec; reassess frequently",
    "Avoid over-vigorous massage — can cause atony paradoxically",
  ];
  massagePoints.forEach((p, i) => {
    slide.addText(`• ${p}`, { x: 0.5, y: 2.12 + i * 0.55, w: 4.3, h: 0.5, fontSize: 10, color: TEXT_LIGHT });
  });

  // Right panel - checks
  slide.addShape(pres.ShapeType.rect, { x: 5.15, y: 1.45, w: 4.5, h: 3.55, fill: { color: MID_BLUE }, line: { color: ACCENT_GOLD, width: 1 } });
  slide.addText("🔍  Post-Delivery Checks", { x: 5.25, y: 1.55, w: 4.3, h: 0.5, fontSize: 14, bold: true, color: ACCENT_GOLD });
  const checkPoints = [
    "Examine placenta for completeness",
    "Check cord: 2 arteries + 1 vein",
    "Inspect for accessory lobes or missing cotyledons",
    "Inspect cervix & vagina for lacerations",
    "Monitor vital signs & blood loss closely",
    "Document blood loss (normal: ≤ 500 mL vaginal delivery)",
  ];
  checkPoints.forEach((p, i) => {
    slide.addText(`• ${p}`, { x: 5.25, y: 2.12 + i * 0.48, w: 4.3, h: 0.44, fontSize: 10, color: TEXT_LIGHT });
  });

  accentBar(slide, ACCENT_GOLD);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 9 — COMPLICATIONS / PPH
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addLightSlide(pres);
  sectionBadge(slide, "COMPLICATIONS");
  slideNumber(slide, 9);

  slide.addText("Complications: Postpartum Haemorrhage (PPH)", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 22, bold: true, color: TEXT_DARK
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 7, h: 0, line: { color: "B00020", width: 2.5 } });

  // Definition box
  slide.addShape(pres.ShapeType.rect, { x: 0.4, y: 1.4, w: 9.2, h: 0.65, fill: { color: "B00020" }, line: { color: "B00020" } });
  slide.addText("Primary PPH: Blood loss ≥ 500 mL within 24 h (vaginal)  |  ≥ 1000 mL (caesarean)", {
    x: 0.4, y: 1.4, w: 9.2, h: 0.65, fontSize: 12, color: WHITE, bold: true, align: "center", valign: "middle"
  });

  // 4 Ts
  const ts = [
    { t: "TONE", val: "Uterine Atony", pct: "70%", desc: "Most common cause. Uterus fails to contract.", color: "B00020" },
    { t: "TRAUMA", val: "Lacerations / Inversion", pct: "20%", desc: "Cervical, vaginal, perineal tears; uterine rupture.", color: "E05C00" },
    { t: "TISSUE", val: "Retained Products", pct: "10%", desc: "Retained placenta, membranes, or blood clots.", color: MID_BLUE },
    { t: "THROMBIN", val: "Coagulopathy", pct: "1%", desc: "DIC, pre-existing clotting disorders.", color: "6B4EAE" },
  ];

  ts.forEach((item, i) => {
    const x = 0.35 + i * 2.38;
    slide.addShape(pres.ShapeType.rect, { x, y: 2.18, w: 2.2, h: 0.55, fill: { color: item.color }, line: { color: item.color } });
    slide.addText(`"T" – ${item.t}`, { x, y: 2.18, w: 2.2, h: 0.55, fontSize: 10, bold: true, color: WHITE, align: "center", valign: "middle" });
    slide.addShape(pres.ShapeType.rect, { x, y: 2.73, w: 2.2, h: 2.1, fill: { color: WHITE }, line: { color: item.color, width: 1.5 } });
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    slide.addText(item.val, { x: x + 0.1, y: 3.32, w: 2.0, h: 0.42, fontSize: 10.5, bold: true, color: TEXT_DARK, align: "center" });
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  accentBar(slide, "B00020");
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 10 — PPH Management Algorithm
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);
  sectionBadge(slide, "MANAGEMENT");
  slideNumber(slide, 10);

  slide.addText("PPH Management: Step-Up Approach", {
    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 26, bold: true, color: WHITE
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 4.5, h: 0, line: { color: "B00020", width: 2.5 } });

  const steps = [
    { level: "STEP 1", text: "Call for help  |  2× large bore IV access  |  FBC, crossmatch, coagulation screen  |  Crystalloid resuscitation", color: MID_BLUE },
    { level: "STEP 2", text: "Uterine massage  |  Oxytocin 20-40 IU IV infusion  |  Ergometrine 0.2 mg IM  |  Bladder catheterisation", color: "5B8DB8" },
    { level: "STEP 3", text: "Carboprost 250 µg IM ± intrauterine  |  Misoprostol 800–1000 µg rectal  |  Tranexamic acid 1 g IV", color: "E05C00" },
    { level: "STEP 4", text: "Examine under anaesthesia  |  Repair lacerations  |  Bakri balloon / uterine packing  |  Blood transfusion", color: "C15500" },
    { level: "STEP 5", text: "Surgical: B-Lynch suture  |  Uterine artery ligation  |  Interventional radiology (embolisation)  |  Hysterectomy (last resort)", color: "B00020" },
  ];

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    const y = 1.5 + i * 0.76;
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    slide.addShape(pres.ShapeType.rect, { x: 1.7, y, w: 7.95, h: 0.6, fill: { color: "132D58" }, line: { color: s.color, width: 0.75 } });
    slide.addText(s.text, { x: 1.82, y: y + 0.04, w: 7.7, h: 0.52, fontSize: 9.5, color: TEXT_LIGHT, valign: "middle" });
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      slide.addText("▼", { x: 0.72, y: y + 0.6, w: 0.56, h: 0.15, fontSize: 9, color: s.color, align: "center" });
    }
  });

  accentBar(slide, "B00020");
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 11 — VIDEO SLIDE (embedded YouTube link)
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addDarkSlide(pres);

  // Full background gradient effect with shapes
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  slide.addShape(pres.ShapeType.ellipse, { x: -1, y: -1, w: 5, h: 5, fill: { color: "0D2B55" }, line: { color: "0D2B55" } });
  slide.addShape(pres.ShapeType.ellipse, { x: 7, y: 2.5, w: 4, h: 4, fill: { color: "0A1E40" }, line: { color: "0A1E40" } });

  // Section badge
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    x: 0.4, y: 0.2, w: 2.4, h: 0.38, fill: { color: "FF0000" }, rectRadius: 0.08, line: { color: "FF0000" }
  });
  slide.addText("▶  VIDEO RESOURCE", {
    x: 0.4, y: 0.2, w: 2.4, h: 0.38,
    fontSize: 9, bold: true, color: WHITE, align: "center", valign: "middle", margin: 0, charSpacing: 1
  });

  slide.addText("AMTSL in Action", {
    x: 0.4, y: 0.72, w: 9, h: 0.8,
    fontSize: 36, bold: true, color: WHITE
  });
  slide.addText("Active Management of the 3rd Stage of Labour", {
    x: 0.4, y: 1.5, w: 9, h: 0.45,
    fontSize: 16, color: ACCENT_TEAL, italic: true
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 2.0, w: 5, h: 0, line: { color: ACCENT_TEAL, width: 1.5 } });

  // YouTube thumbnail placeholder — clickable box
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    x: 0.5, y: 2.15, w: 5.8, h: 3.1, fill: { color: "111111" }, rectRadius: 0.18,
    line: { color: "FF0000", width: 2.5 }
  });

  // Play button
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    x: 2.7, y: 3.0, w: 1.4, h: 1.4, fill: { color: "FF0000" }, line: { color: "FF0000" }
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  slide.addText("▶", { x: 2.7, y: 3.0, w: 1.4, h: 1.4, fontSize: 30, color: WHITE, align: "center", valign: "middle", margin: 0 });

  slide.addText("CLICK TO WATCH", { x: 0.5, y: 4.85, w: 5.8, h: 0.38, fontSize: 10, bold: true, color: "FF0000", align: "center" });

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  slide.addText("Video covers:", { x: 6.65, y: 2.22, w: 2.9, h: 0.38, fontSize: 11, bold: true, color: ACCENT_TEAL });
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    "Oxytocin administration",
    "Early cord clamping",
    "Controlled cord traction",
    "Fundal massage",
    "Placenta examination",
    "PPH prevention tips",
  ];
  videoPoints.forEach((p, i) => {
    slide.addText(`✓  ${p}`, { x: 6.65, y: 2.65 + i * 0.41, w: 2.9, h: 0.38, fontSize: 9.5, color: TEXT_LIGHT });
  });

  // URL text
  slide.addText("YouTube: Active Management of Third Stage of Labour | AMTSL", {
    x: 0.5, y: 5.28, w: 9.0, h: 0.28, fontSize: 8.5, color: "8899BB", italic: true
  });

  // Hyperlink on the play button area — add text link
  slide.addText("https://www.youtube.com/watch?v=-K-jFftVJ-8", {
    x: 0.5, y: 5.08, w: 9.0, h: 0.22,
    fontSize: 8, color: ACCENT_TEAL,
    hyperlink: { url: "https://www.youtube.com/watch?v=-K-jFftVJ-8" }
  });
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 12 — SUMMARY TABLE
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = addLightSlide(pres);
  sectionBadge(slide, "SUMMARY");
  slideNumber(slide, 12);

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    x: 0.4, y: 0.62, w: 9, h: 0.65, fontSize: 27, bold: true, color: TEXT_DARK
  });
  slide.addShape(pres.ShapeType.line, { x: 0.4, y: 1.28, w: 4, h: 0, line: { color: ACCENT_TEAL, width: 2.5 } });

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    ["3rd Stage Duration", "5–30 min (normal); >30 min = prolonged"],
    ["AMTSL Components", "Uterotonic + Controlled Cord Traction + Uterine Massage"],
    ["First-line Uterotonic", "Oxytocin 10 IU IM within 1 min of birth"],
    ["CCT Method", "Brandt-Andrews: counter-traction + gentle cord traction"],
    ["Normal Blood Loss", "≤ 500 mL (vaginal); ≤ 1000 mL (caesarean)"],
    ["PPH Definition", "≥ 500 mL within 24 h (vaginal delivery)"],
    ["4 Ts of PPH", "Tone (70%) | Trauma (20%) | Tissue (10%) | Thrombin (1%)"],
    ["Placenta Examination", "Completeness, cotyledons, cord vessels (2 arteries + 1 vein)"],
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    border: { type: "solid", color: "C8D8E8", pt: 0.5 },
    fill: WHITE,
    fontSize: 10,
    color: TEXT_DARK,
    align: "left",
    valign: "middle",
    rowH: 0.38,
  });

  accentBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 13 — THANK YOU (fun & eye-catching)
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: "040D1A" };

  // Decorative burst rings
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    { x: 4.2, y: 1.5, r: 3.5, col: "1A4A8A", op: 20 },
    { x: 4.2, y: 1.5, r: 2.5, col: "0D2B55", op: 30 },
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      line: { color: c.col, width: 1.5 }
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  // Confetti dots (scattered)
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    { x: 8.8, y: 0.5, col: "B00020"   }, { x: 9.2, y: 1.2, col: ACCENT_TEAL },
    { x: 0.8, y: 4.8, col: ACCENT_GOLD}, { x: 9.0, y: 4.6, col: ACCENT_TEAL },
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    fontSize: 80, bold: true, color: ACCENT_TEAL, align: "center", charSpacing: -2
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  // Fun subtitle
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  // Key takeaway strip
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  slide.addText("Remember: AMTSL = Oxytocin + CCT + Uterine Massage — the 3-step shield against PPH", {
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  // Name & department
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  // References note
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}

// ─── WRITE FILE ──────────────────────────────────────────────────────────────
pres.writeFile({ fileName: "/home/daytona/workspace/third-stage-labour-ppt/3rd_Stage_Labour_Management.pptx" })
  .then(() => console.log("DONE: 3rd_Stage_Labour_Management.pptx written"))
  .catch(e => { console.error("ERROR:", e); process.exit(1); });