Community Health Nursing - I (CHN-I)

from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.units import cm, mm
from reportlab.platypus import (
    SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle,
    HRFlowable, KeepTogether, PageBreak
)
from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_JUSTIFY
from reportlab.platypus import BaseDocTemplate, Frame, PageTemplate

OUTPUT = "/tmp/workspace/chn-study-guide/CHN1_Study_Guide_5thSem.pdf"

# ─────────── Colour palette ───────────
TEAL       = colors.HexColor("#007A7A")
LIGHT_TEAL = colors.HexColor("#E0F5F5")
DARK_TEAL  = colors.HexColor("#005555")
ORANGE     = colors.HexColor("#E87722")
LIGHT_ORANGE = colors.HexColor("#FFF3E8")
GREY_BG    = colors.HexColor("#F4F6F8")
GREY_LINE  = colors.HexColor("#CBD5E0")
WHITE      = colors.white
BLACK      = colors.HexColor("#1A1A2E")
YELLOW_HL  = colors.HexColor("#FFFBDE")

# ─────────── Styles ───────────
styles = getSampleStyleSheet()

def S(name, **kw):
    return ParagraphStyle(name, **kw)

cover_title = S("CoverTitle",
    fontSize=28, fontName="Helvetica-Bold",
    textColor=WHITE, alignment=TA_CENTER, leading=34)

cover_sub = S("CoverSub",
    fontSize=14, fontName="Helvetica",
    textColor=colors.HexColor("#CCF0F0"), alignment=TA_CENTER, leading=20)

cover_badge = S("CoverBadge",
    fontSize=11, fontName="Helvetica-Bold",
    textColor=ORANGE, alignment=TA_CENTER)

unit_header = S("UnitHeader",
    fontSize=13, fontName="Helvetica-Bold",
    textColor=WHITE, alignment=TA_LEFT,
    backColor=TEAL, leftIndent=8, rightIndent=8,
    spaceBefore=10, spaceAfter=4, leading=18,
    borderPad=6)

section_title = S("SectionTitle",
    fontSize=11, fontName="Helvetica-Bold",
    textColor=DARK_TEAL, spaceBefore=8, spaceAfter=3, leading=15)

body = S("Body",
    fontSize=9.5, fontName="Helvetica",
    textColor=BLACK, leading=14, spaceBefore=1, spaceAfter=1)

bullet = S("Bullet",
    fontSize=9.5, fontName="Helvetica",
    textColor=BLACK, leading=14, leftIndent=14, firstLineIndent=-10,
    spaceBefore=1, spaceAfter=1)

sub_bullet = S("SubBullet",
    fontSize=9, fontName="Helvetica",
    textColor=colors.HexColor("#334155"), leading=13,
    leftIndent=28, firstLineIndent=-10,
    spaceBefore=0, spaceAfter=0)

key_point = S("KeyPoint",
    fontSize=9.5, fontName="Helvetica-Bold",
    textColor=DARK_TEAL, leading=14, leftIndent=14,
    firstLineIndent=-10, spaceBefore=1)

tip_style = S("Tip",
    fontSize=9, fontName="Helvetica-Oblique",
    textColor=colors.HexColor("#555500"), leading=13,
    leftIndent=10, spaceBefore=2, spaceAfter=2)

footer_style = S("Footer",
    fontSize=7.5, fontName="Helvetica",
    textColor=colors.HexColor("#888888"), alignment=TA_CENTER)

# ─────────── Page callbacks ───────────
def on_page(canvas, doc):
    canvas.saveState()
    w, h = A4
    # header bar
    canvas.setFillColor(DARK_TEAL)
    canvas.rect(0, h - 22*mm, w, 22*mm, fill=1, stroke=0)
    canvas.setFont("Helvetica-Bold", 9)
    canvas.setFillColor(WHITE)
    canvas.drawString(1.5*cm, h - 14*mm, "Community Health Nursing – I  |  B.Sc Nursing 5th Semester  |  INC Syllabus")
    canvas.setFont("Helvetica", 8)
    canvas.drawRightString(w - 1.5*cm, h - 14*mm, f"Page {doc.page}")
    # footer
    canvas.setFont("Helvetica", 7)
    canvas.setFillColor(colors.HexColor("#AAAAAA"))
    canvas.drawCentredString(w/2, 8*mm, "Quick Reference Study Guide  •  For Academic Use Only")
    canvas.restoreState()

def on_first_page(canvas, doc):
    # full-page cover gradient background
    w, h = A4
    canvas.saveState()
    canvas.setFillColor(DARK_TEAL)
    canvas.rect(0, 0, w, h, fill=1, stroke=0)
    canvas.setFillColor(TEAL)
    canvas.rect(0, h*0.35, w, h*0.65, fill=1, stroke=0)
    # decorative circles
    canvas.setFillColor(colors.HexColor("#009999"))
    canvas.circle(w + 20, h - 30, 120, fill=1, stroke=0)
    canvas.setFillColor(colors.HexColor("#006666"))
    canvas.circle(-30, 50, 90, fill=1, stroke=0)
    canvas.restoreState()

# ─────────── Helper builders ───────────
def unit_box(title):
    return Table(
        [[Paragraph(title, unit_header)]],
        colWidths=[17*cm],
        style=TableStyle([
            ("BACKGROUND", (0,0), (-1,-1), TEAL),
            ("TOPPADDING",    (0,0), (-1,-1), 7),
            ("BOTTOMPADDING", (0,0), (-1,-1), 7),
            ("LEFTPADDING",   (0,0), (-1,-1), 10),
            ("RIGHTPADDING",  (0,0), (-1,-1), 10),
            ("ROUNDEDCORNERS", [4]),
        ])
    )

def info_table(rows, col_widths=None, header=None):
    if col_widths is None:
        col_widths = [5*cm, 12*cm]
    data = []
    if header:
        data.append([Paragraph(f"<b>{header[0]}</b>", section_title),
                     Paragraph(f"<b>{header[1]}</b>", section_title)])
    for r in rows:
        data.append([Paragraph(str(r[0]), bullet), Paragraph(str(r[1]), body)])
    ts = TableStyle([
        ("BACKGROUND", (0,0), (-1,0), LIGHT_TEAL),
        ("BACKGROUND", (0,1), (-1,-1), GREY_BG),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, GREY_BG]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("RIGHTPADDING",  (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])
    if header:
        ts.add("BACKGROUND", (0,0), (-1,0), TEAL)
        ts.add("TEXTCOLOR", (0,0), (-1,0), WHITE)
    return Table(data, colWidths=col_widths, style=ts, repeatRows=1 if header else 0)

def highlight_box(text, bg=YELLOW_HL, border=ORANGE):
    return Table(
        [[Paragraph(text, tip_style)]],
        colWidths=[17*cm],
        style=TableStyle([
            ("BACKGROUND", (0,0), (-1,-1), bg),
            ("LINEBEFORETABLE", (0,0), (-1,-1), 3, border),
            ("BOX", (0,0), (-1,-1), 0.5, border),
            ("TOPPADDING",    (0,0), (-1,-1), 6),
            ("BOTTOMPADDING", (0,0), (-1,-1), 6),
            ("LEFTPADDING",   (0,0), (-1,-1), 10),
        ])
    )

def bullets(items, style=bullet):
    return [Paragraph(f"• {i}", style) for i in items]

def kv_2col(left_items, right_items):
    """Two-column bullet layout"""
    max_rows = max(len(left_items), len(right_items))
    data = []
    for i in range(max_rows):
        l = Paragraph(f"• {left_items[i]}", bullet) if i < len(left_items) else Paragraph("", body)
        r = Paragraph(f"• {right_items[i]}", bullet) if i < len(right_items) else Paragraph("", body)
        data.append([l, r])
    return Table(data, colWidths=[8.3*cm, 8.7*cm],
                 style=TableStyle([
                     ("TOPPADDING",    (0,0), (-1,-1), 2),
                     ("BOTTOMPADDING", (0,0), (-1,-1), 2),
                     ("LEFTPADDING",   (0,0), (-1,-1), 4),
                     ("VALIGN",        (0,0), (-1,-1), "TOP"),
                 ]))

# ═══════════════════════════════════════
# BUILD DOCUMENT
# ═══════════════════════════════════════
doc = SimpleDocTemplate(
    OUTPUT,
    pagesize=A4,
    leftMargin=2*cm, rightMargin=2*cm,
    topMargin=2.8*cm, bottomMargin=2*cm,
    title="CHN-I Study Guide | B.Sc Nursing 5th Sem",
    author="Quick Reference Guide"
)

story = []

# ══════════ COVER PAGE ══════════
story.append(Spacer(1, 3*cm))
story.append(Paragraph("COMMUNITY HEALTH NURSING – I", cover_title))
story.append(Spacer(1, 0.4*cm))
story.append(Paragraph("Quick Reference Study Guide", cover_sub))
story.append(Spacer(1, 0.2*cm))
story.append(Paragraph("B.Sc Nursing  •  5th Semester  •  INC Syllabus", cover_sub))
story.append(Spacer(1, 1.8*cm))

# badges row
badge_data = [
    [Paragraph("📘 9 Units", cover_badge),
     Paragraph("🕐 100 Hrs Theory", cover_badge),
     Paragraph("🏥 160 Hrs Clinical", cover_badge),
     Paragraph("⭐ 5 Credits", cover_badge)]
]
badge_table = Table(badge_data, colWidths=[4.25*cm]*4,
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,-1), colors.HexColor("#00676766")),
        ("BOX", (0,0), (-1,-1), 1, ORANGE),
        ("INNERGRID", (0,0), (-1,-1), 0.5, colors.HexColor("#FFFFFF44")),
        ("TOPPADDING",    (0,0), (-1,-1), 10),
        ("BOTTOMPADDING", (0,0), (-1,-1), 10),
        ("ALIGN", (0,0), (-1,-1), "CENTER"),
        ("ROUNDEDCORNERS", [6]),
    ]))
story.append(badge_table)
story.append(Spacer(1, 2.5*cm))
story.append(Paragraph("Subject Code: N-COMH(I)310", cover_sub))
story.append(Spacer(1, 0.3*cm))
story.append(Paragraph("Indian Nursing Council  |  Revised Curriculum", cover_sub))
story.append(PageBreak())

# ══════════ PAGE 2: OVERVIEW + COMPETENCIES ══════════
story.append(Paragraph("COURSE OVERVIEW", section_title))
story.append(HRFlowable(width="100%", thickness=2, color=TEAL, spaceAfter=6))

overview_rows = [
    ("Placement", "V Semester – B.Sc Nursing"),
    ("Theory Credits", "5 Credits | 100 Hours (includes lab hours)"),
    ("Clinical Credits", "2 Credits | 160 Hours"),
    ("Settings", "Rural PHC, Urban PHC, Sub-centre (SC/HWC), CHC, District Hospital"),
    ("Subject Code", "N-COMH(I)310"),
]
story.append(info_table(overview_rows, col_widths=[5.5*cm, 11.5*cm]))
story.append(Spacer(1, 0.5*cm))

story.append(Paragraph("AIM OF THE COURSE", section_title))
story.append(HRFlowable(width="100%", thickness=1, color=TEAL, spaceAfter=4))
story.append(Paragraph(
    "To develop broad perspectives of health, its determinants, community health nursing, "
    "healthcare delivery system, and health policies in India. To apply epidemiological and "
    "BCC principles for health promotion at individual, family and community levels across "
    "rural, urban and tribal settings.",
    body))
story.append(Spacer(1, 0.5*cm))

story.append(Paragraph("KEY COMPETENCIES", section_title))
story.append(HRFlowable(width="100%", thickness=1, color=TEAL, spaceAfter=4))
comp_left = [
    "Evolution of public health in India",
    "Concepts & determinants of health",
    "Natural history of disease",
    "Health care delivery system in India",
    "National Health Programs (NHPs)",
    "BCC/SBCC & health education",
    "Community health nursing approaches",
]
comp_right = [
    "Role of community health nurses",
    "Primary health care across lifespan",
    "Home visiting principles",
    "Epidemiological approach",
    "Communicable disease investigation",
    "NCD assessment, management & referral",
    "Environmental health & sanitation",
]
story.append(kv_2col(comp_left, comp_right))
story.append(Spacer(1, 0.4*cm))

# ══════════ UNITS ══════════
# --- UNIT I ---
story.append(unit_box("UNIT I  –  Concepts of Community Health & Community Health Nursing"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Definition & Concepts", section_title))
u1_topics = [
    "<b>Health (WHO)</b> – State of complete physical, mental and social well-being",
    "<b>Community Health</b> – Focuses on prevention & promotion at population level (vs. individual care)",
    "<b>CHN</b> – Combines nursing + public health principles for community-level health improvement",
    "<b>Dimensions of Health</b> – Physical, Mental, Social, Emotional, Spiritual, Environmental, Occupational",
    "<b>Determinants</b> – Biological, behavioural, socio-economic, environmental, healthcare access",
]
story.extend(bullets(u1_topics))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Natural History of Disease & Prevention", section_title))
prevention_data = [
    [Paragraph("<b>Level</b>", body), Paragraph("<b>Stage</b>", body), Paragraph("<b>Action</b>", body)],
    [Paragraph("Primary", body), Paragraph("Pre-pathogenesis", body), Paragraph("Health promotion, specific protection (vaccines, sanitation)", body)],
    [Paragraph("Secondary", body), Paragraph("Early pathogenesis", body), Paragraph("Early diagnosis, prompt treatment, disability limitation", body)],
    [Paragraph("Tertiary", body), Paragraph("Advanced disease", body), Paragraph("Rehabilitation, prevent complications", body)],
]
story.append(Table(prevention_data, colWidths=[3.5*cm, 4.5*cm, 9*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, GREY_BG]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Health Problems of India", section_title))
hp_left  = ["Communicable: TB, Malaria, HIV/AIDS", "Non-communicable: CVD, Diabetes, Cancer", "Nutritional: PEM, Anaemia, Vit-A deficiency"]
hp_right = ["Mental health disorders", "Maternal & child health issues", "Environmental & occupational health"]
story.append(kv_2col(hp_left, hp_right))

# --- UNIT II ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT II  –  Health Care Delivery System in India"))
story.append(Spacer(1, 0.2*cm))

hcd_rows = [
    ("Sub-centre (SC) / HWC", "Peripheral-most unit; 1 ANM + 1 MPW(M); covers 3,000–5,000 population in plains"),
    ("PHC (Primary Health Centre)", "First doctor contact; 30,000 pop (plains); 20,000 (hilly/tribal)"),
    ("CHC (Community Health Centre)", "4 PHCs; 80,000–1,20,000 pop; specialist care (surgeon, physician, OBG, paediatrician)"),
    ("District Hospital (DH)", "Apex referral at district level; all specialities"),
]
story.append(info_table(hcd_rows, col_widths=[4.5*cm, 12.5*cm], header=["Level", "Key Features"]))
story.append(Spacer(1, 0.2*cm))
story.append(highlight_box(
    "⚡ Exam Tip: NHM = National Rural Health Mission (2005) + National Urban Health Mission (2013). "
    "ASHA is a key community volunteer under NHM. Know the population norms for each level."))

story.append(Paragraph("Key Organizations", section_title))
org_left  = ["WHO – Global health standards", "UNICEF – Child & maternal health", "World Bank – Health financing"]
org_right = ["USAID – Technical assistance (BCC/SBCC)", "MoHFW – Policy & programs", "ICMR – Medical research India"]
story.append(kv_2col(org_left, org_right))

# --- UNIT III ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT III  –  National Health Programs (NHPs)"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Communicable Disease Programs", section_title))
nhp_comm = [
    ("<b>NTEP</b> (formerly RNTCP)", "National TB Elimination Programme; DOTS therapy; target: eliminate TB by 2025"),
    ("<b>NVBDCP</b>", "Malaria, Dengue, Filaria, Kala-azar, Chikungunya, Japanese Encephalitis"),
    ("<b>NLEP</b>", "National Leprosy Eradication Programme; Multi-drug therapy (MDT)"),
    ("<b>UIP</b>", "Universal Immunisation Programme; BCG, OPV, DPT, Measles, HepB, IPV, Rota etc."),
    ("<b>NACP</b>", "National AIDS Control Programme; 4th phase (NACP-IV); focus on prevention + treatment"),
]
story.append(info_table(nhp_comm, col_widths=[4*cm, 13*cm]))
story.append(Spacer(1, 0.3*cm))

story.append(Paragraph("Non-Communicable Disease Programs", section_title))
nhp_ncd = [
    ("<b>NPCDCS</b>", "Cancer, Diabetes, CVD & Stroke – prevention, early detection, management"),
    ("<b>NPCB&VI</b>", "Control of Blindness & Visual Impairment; cataract surgeries, school eye screening"),
    ("<b>NPPCD</b>", "Prevention & Control of Deafness; newborn & school screening"),
    ("<b>Thyroid Diseases</b>", "Iodine deficiency – IDD control; universal salt iodization"),
    ("<b>Road Traffic Injuries</b>", "Risk factors; operational guidelines for trauma care on highways"),
]
story.append(info_table(nhp_ncd, col_widths=[4*cm, 13*cm]))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Cancers (High-Yield)", section_title))
cancer_data = [
    [Paragraph("<b>Cancer</b>", body), Paragraph("<b>Screening Tool</b>", body), Paragraph("<b>Prevention</b>", body)],
    [Paragraph("Cervical", body), Paragraph("Pap smear / VIA / VILI", body), Paragraph("HPV vaccine, early detection", body)],
    [Paragraph("Breast", body), Paragraph("BSE, CBE, Mammography", body), Paragraph("Monthly self-exam, screening", body)],
    [Paragraph("Oral", body), Paragraph("Visual oral exam", body), Paragraph("Quit tobacco/alcohol, oral hygiene", body)],
]
story.append(Table(cancer_data, colWidths=[4*cm, 5*cm, 8*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), ORANGE),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_ORANGE]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.2*cm))
story.append(highlight_box(
    "⚡ Exam Tip: Palliative care = comfort & quality of life when cure is not possible. "
    "Nurse's role: pain management, emotional support, family counselling."))

# --- UNIT IV ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT IV  –  Environmental Health & Sanitation"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Water Quality Standards", section_title))
story.extend(bullets([
    "<b>Coliform count</b> – Zero coliforms in 100 mL of drinking water (WHO standard)",
    "<b>Turbidity</b> – ≤ 5 NTU; Colour – ≤ 15 TCU; pH 6.5–8.5",
    "<b>Chlorine residual</b> – 0.2 mg/L at point of use",
    "<b>Waterborne diseases</b> – Cholera, Typhoid, Hepatitis A, Dysentery, Polio",
    "<b>Household purification</b> – Boiling, chlorination, solar disinfection (SODIS), filtration",
]))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Pollution & Waste Management", section_title))
poll_left  = ["Air pollution: indoor (biomass) & outdoor", "Noise pollution: >85 dB harmful", "Soil pollution: pesticides, heavy metals"]
poll_right = ["Biomedical waste: colour-coded bags (Yellow, Red, White, Blue)", "Water conservation: rainwater harvesting", "Watershed management; Acts: EPA 1986, WPCPA"]
story.append(kv_2col(poll_left, poll_right))
story.append(Spacer(1, 0.2*cm))
story.append(highlight_box(
    "⚡ Colour-coded biomedical waste bags: Yellow = anatomical/infectious, Red = plastic recyclables, "
    "White/Translucent = sharps, Blue = glassware. Know these for OSCE!"))

# --- UNIT V ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT V  –  BCC & Health Education"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Communication Process", section_title))
comm_items = [
    "Elements: Sender → Message → Channel → Receiver → Feedback",
    "<b>Types</b>: Verbal (words), Non-verbal (body language), Written, Visual",
    "<b>Barriers</b>: Language, culture, noise, illiteracy, attitudes, physical disability",
    "Methods to overcome: simple language, local dialect, visual aids, active listening",
]
story.extend(bullets(comm_items))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Health Education Methods & AV Aids", section_title))
he_data = [
    [Paragraph("<b>Method</b>", body), Paragraph("<b>Examples</b>", body), Paragraph("<b>Best For</b>", body)],
    [Paragraph("Individual", body), Paragraph("Counselling, home visit, bedside teaching", body), Paragraph("Personal behaviour change", body)],
    [Paragraph("Group", body), Paragraph("Lecture, group discussion, demonstration, role play", body), Paragraph("Small community groups", body)],
    [Paragraph("Mass", body), Paragraph("Radio, TV, posters, social media, newspaper", body), Paragraph("Large community awareness", body)],
]
story.append(Table(he_data, colWidths=[3.5*cm, 7.5*cm, 6*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_TEAL]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.2*cm))
story.append(Paragraph("<b>SBCC</b> (Social & Behaviour Change Communication)", section_title))
story.extend(bullets([
    "Builds on BCC – addresses social norms, community values, interpersonal communication",
    "Strategies: community mobilization, mass media campaigns, interpersonal communication (IPC)",
    "Reference: BCC/SBCC module by MoHFW & USAID",
]))

# --- UNIT VI ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT VI  –  CHN Approaches, Concepts & Home Visits"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Approaches in Community Health Nursing", section_title))
approach_items = [
    "<b>Nursing Process Approach</b>: Assessment → Diagnosis → Planning → Implementation → Evaluation",
    "<b>Epidemiological Approach</b>: Identify health problems using person-place-time analysis",
    "<b>Problem-Solving Approach</b>: Identify problem → Gather data → Analyse → Implement → Evaluate",
]
story.extend(bullets(approach_items))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Home Visiting", section_title))
hv_items = [
    "Purpose: health assessment, treatment follow-up, health education, referral support",
    "Principles: planned, purposeful, focused on family needs, maintain confidentiality",
    "<b>Bag Technique</b> – keeps nurse's bag clean; newspaper as 'clean area'; never place bag on floor",
    "Steps: Pre-visit preparation → Introduction → Assessment → Intervention → Documentation",
]
story.extend(bullets(hv_items))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Role of CHN Nurse", section_title))
role_left  = ["Care provider", "Health educator", "Counsellor / Advocate", "Case manager"]
role_right = ["Change agent", "Researcher", "Coordinator / Collaborator", "Supervisor (of ASHA, ANM)"]
story.append(kv_2col(role_left, role_right))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Records & Documentation", section_title))
story.extend(bullets([
    "Individual records: family folder, immunisation card, ANC card",
    "Facility records: OPD register, birth/death register, stock register",
    "Visit reports: document all activities during home visits and field trips",
    "Family care plan: assessment → nursing diagnosis → goals → interventions → evaluation",
]))

# --- UNIT VII ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT VII  –  Social Issues Affecting Health"))
story.append(Spacer(1, 0.2*cm))

social_items = [
    "<b>Women Empowerment</b> – Education, economic independence, legal rights (PCPNDT Act, Dowry Act)",
    "<b>Women & Child Abuse</b> – Domestic violence, child labour, trafficking; nurse's role: identify, report, refer",
    "<b>Elder Abuse</b> – Physical, emotional, financial; Maintenance & Welfare of Parents Act 2007",
    "<b>Female Foeticide</b> – PCPNDT Act 1994 (prohibits sex determination tests)",
    "<b>Substance Abuse</b> – Tobacco, alcohol, drugs; NDPS Act 1985; de-addiction counselling",
    "<b>Commercial Sex Workers</b> – HIV risk, social stigma; harm reduction, outreach programs",
]
story.extend(bullets(social_items))
story.append(Spacer(1, 0.2*cm))
story.append(highlight_box(
    "⚡ Key Acts: PCPNDT Act 1994 | Domestic Violence Act 2005 | POCSO Act 2012 (child sexual abuse) | "
    "NDPS Act 1985 | Maintenance & Welfare of Parents & Senior Citizens Act 2007"))

# --- UNIT VIII ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT VIII  –  Epidemiology"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Core Concepts", section_title))
epi_rows = [
    ("<b>Epidemiology</b>", "Study of distribution & determinants of health-related states in populations"),
    ("<b>Incidence</b>", "New cases in a population during a specific period"),
    ("<b>Prevalence</b>", "All existing cases (new + old) at a given point or period"),
    ("<b>Attack Rate</b>", "% of exposed persons who develop disease (used in outbreaks)"),
    ("<b>Herd Immunity</b>", "% of population immune → protects susceptibles; threshold varies by disease"),
]
story.append(info_table(epi_rows, col_widths=[4*cm, 13*cm]))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Epidemiological Approaches", section_title))
epi_app = [
    "<b>Descriptive</b> – Who? Where? When? (person, place, time). Generates hypotheses",
    "<b>Analytical</b> – Case-control, Cohort studies. Tests hypotheses, finds associations",
    "<b>Experimental</b> – RCTs, field/community trials. Establishes causation",
]
story.extend(bullets(epi_app))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Epidemic Investigation Steps (Outbreak)", section_title))
steps = [
    "1. Confirm diagnosis / verify the epidemic",
    "2. Establish case definition",
    "3. Find & count cases (line listing)",
    "4. Describe by person, place, time (epidemic curve)",
    "5. Formulate hypothesis (source, mode of transmission)",
    "6. Test hypothesis (case-control study)",
    "7. Implement control measures",
    "8. Communicate findings & prepare report",
]
story.extend([Paragraph(s, bullet) for s in steps])

# --- UNIT IX ---
story.append(Spacer(1, 0.3*cm))
story.append(unit_box("UNIT IX  –  Communicable & Non-Communicable Diseases"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Common Communicable Diseases – Quick Recall", section_title))
comm_disease_data = [
    [Paragraph("<b>Disease</b>", body), Paragraph("<b>Causative Agent</b>", body),
     Paragraph("<b>Mode of Transmission</b>", body), Paragraph("<b>Key Control</b>", body)],
    [Paragraph("Tuberculosis", body), Paragraph("M. tuberculosis", body),
     Paragraph("Droplet / airborne", body), Paragraph("DOTS, BCG vaccine", body)],
    [Paragraph("Malaria", body), Paragraph("Plasmodium spp.", body),
     Paragraph("Female Anopheles mosquito", body), Paragraph("ITN, IRS, ACT", body)],
    [Paragraph("Dengue", body), Paragraph("Dengue virus (Flavivirus)", body),
     Paragraph("Aedes aegypti mosquito", body), Paragraph("Vector control, no vaccine routine", body)],
    [Paragraph("Cholera", body), Paragraph("Vibrio cholerae", body),
     Paragraph("Contaminated water/food", body), Paragraph("ORS, safe water, vaccine", body)],
    [Paragraph("HIV/AIDS", body), Paragraph("HIV (Retrovirus)", body),
     Paragraph("Sexual, blood, mother-to-child", body), Paragraph("ART, condom, PPTCT", body)],
    [Paragraph("Leprosy", body), Paragraph("M. leprae", body),
     Paragraph("Prolonged contact/droplet", body), Paragraph("MDT (Dapsone+Rifampicin+Clofazimine)", body)],
]
story.append(Table(comm_disease_data, colWidths=[3.5*cm, 3.5*cm, 4.5*cm, 5.5*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), DARK_TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_TEAL]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("FONTSIZE",   (0,1), (-1,-1), 8.5),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.3*cm))

story.append(Paragraph("Common NCDs – Quick Recall", section_title))
ncd_data = [
    [Paragraph("<b>NCD</b>", body), Paragraph("<b>Risk Factors</b>", body), Paragraph("<b>Nurse's Role</b>", body)],
    [Paragraph("Hypertension", body),
     Paragraph("Obesity, salt, stress, smoking, sedentary", body),
     Paragraph("BP monitoring, lifestyle counselling, medication adherence", body)],
    [Paragraph("Type 2 Diabetes", body),
     Paragraph("Obesity, family history, diet, inactivity", body),
     Paragraph("Blood glucose monitoring, diet education, foot care", body)],
    [Paragraph("CVD", body),
     Paragraph("HTN, diabetes, dyslipidaemia, smoking", body),
     Paragraph("Risk stratification, ECG, referral", body)],
    [Paragraph("COPD / Asthma", body),
     Paragraph("Smoking, indoor air pollution, occupational", body),
     Paragraph("Spirometry awareness, inhaler technique, smoking cessation", body)],
]
story.append(Table(ncd_data, colWidths=[3.5*cm, 6.5*cm, 7*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), ORANGE),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_ORANGE]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("FONTSIZE",   (0,1), (-1,-1), 8.5),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.3*cm))

# ══════════ ASSESSMENT & PRACTICUM ══════════
story.append(unit_box("ASSESSMENT PATTERN & PRACTICUM REQUIREMENTS"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Theory Examination Pattern", section_title))
exam_data = [
    [Paragraph("<b>Question Type</b>", body), Paragraph("<b>Choice</b>", body),
     Paragraph("<b>Marks Each</b>", body), Paragraph("<b>Total</b>", body)],
    [Paragraph("Essay / Situation type", body), Paragraph("2 out of 4", body),
     Paragraph("15 marks", body), Paragraph("30 marks", body)],
    [Paragraph("Short answer", body), Paragraph("5 out of 6", body),
     Paragraph("5 marks", body), Paragraph("25 marks", body)],
    [Paragraph("Very Short answer", body), Paragraph("4 out of 5", body),
     Paragraph("4 marks", body), Paragraph("8 marks (×2=16 if weighted)", body)],
    [Paragraph("MCQ", body), Paragraph("12 out of 12", body),
     Paragraph("1 mark", body), Paragraph("12 marks", body)],
    [Paragraph("<b>TOTAL</b>", body), Paragraph("", body),
     Paragraph("", body), Paragraph("<b>75 marks</b>", body)],
]
story.append(Table(exam_data, colWidths=[5*cm, 3.5*cm, 4*cm, 4.5*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("BACKGROUND", (0,-1), (-1,-1), LIGHT_TEAL),
        ("FONTNAME",   (0,-1), (-1,-1), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-2), [WHITE, GREY_BG]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.3*cm))

story.append(Paragraph("Continuous Assessment (Practical)", section_title))
prac_data = [
    [Paragraph("<b>Component</b>", body), Paragraph("<b>Details</b>", body), Paragraph("<b>Marks</b>", body)],
    [Paragraph("Attendance", body), Paragraph("95-100%: 2 | 90-94%: 1.5 | 85-89%: 1 | 80-84%: 0.5", body), Paragraph("2 marks", body)],
    [Paragraph("Clinical Performance", body), Paragraph("2 evaluations (1 Rural PHC + 1 Urban PHC) × 50 marks", body), Paragraph("10 marks", body)],
    [Paragraph("Community Survey & Diagnosis", body), Paragraph("2 × 10 marks", body), Paragraph("Included", body)],
    [Paragraph("Visit Reports", body), Paragraph("All visits documented", body), Paragraph("Included", body)],
    [Paragraph("Family Care Plan", body), Paragraph("2 plans × 20 marks", body), Paragraph("10 marks", body)],
    [Paragraph("End-of-Posting OSCE", body), Paragraph("1 structured clinical exam", body), Paragraph("5 marks", body)],
    [Paragraph("Procedure Completion", body), Paragraph("Clinical requirements log", body), Paragraph("3 marks", body)],
]
story.append(Table(prac_data, colWidths=[5*cm, 9*cm, 3*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, GREY_BG]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.3*cm))

# ══════════ QUICK REVISION ══════════
story.append(unit_box("QUICK REVISION – HIGH-YIELD MNEMONICS & KEY FACTS"))
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("Must-Know Numbers", section_title))
num_data = [
    [Paragraph("<b>Item</b>", body), Paragraph("<b>Value</b>", body),
     Paragraph("<b>Item</b>", body), Paragraph("<b>Value</b>", body)],
    [Paragraph("Sub-centre population (plains)", body), Paragraph("3,000–5,000", body),
     Paragraph("PHC population (plains)", body), Paragraph("30,000", body)],
    [Paragraph("CHC population", body), Paragraph("80,000–1,20,000", body),
     Paragraph("PHC population (hilly/tribal)", body), Paragraph("20,000", body)],
    [Paragraph("WHO safe drinking water (coliforms)", body), Paragraph("Zero/100 mL", body),
     Paragraph("Residual chlorine (point of use)", body), Paragraph("0.2 mg/L", body)],
    [Paragraph("Noise harmful level", body), Paragraph(">85 dB", body),
     Paragraph("Normal pH of drinking water", body), Paragraph("6.5–8.5", body)],
    [Paragraph("MDT duration – Paucibacillary leprosy", body), Paragraph("6 months", body),
     Paragraph("MDT duration – Multibacillary leprosy", body), Paragraph("12 months", body)],
]
story.append(Table(num_data, colWidths=[5.5*cm, 3*cm, 5.5*cm, 3*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), DARK_TEAL),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_TEAL]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("FONTSIZE",   (0,1), (-1,-1), 8.5),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.3*cm))

story.append(Paragraph("Mnemonics", section_title))
mnemonic_data = [
    [Paragraph("<b>Topic</b>", body), Paragraph("<b>Mnemonic</b>", body)],
    [Paragraph("Levels of Prevention", body), Paragraph("PPP – Primordial, Primary, (Secondary, Tertiary) → 'Pre-path, Path, Post-path'", body)],
    [Paragraph("Nursing Process", body), Paragraph("<b>ADPIE</b> – Assessment, Diagnosis, Planning, Implementation, Evaluation", body)],
    [Paragraph("Outbreak Investigation", body), Paragraph("<b>CVEHTCR</b> – Confirm, Verify, Enumerate, Hypothesize, Test, Control, Report", body)],
    [Paragraph("MDT drugs for Leprosy (MB)", body), Paragraph("<b>DCR</b> – Dapsone, Clofazimine, Rifampicin", body)],
    [Paragraph("UIP Vaccines (key)", body), Paragraph("<b>BCG POTM HHR</b> – BCG, OPV, TT, MCV, HepB, Hib, Rota", body)],
    [Paragraph("Communication Elements", body), Paragraph("<b>SMCRF</b> – Sender, Message, Channel, Receiver, Feedback", body)],
]
story.append(Table(mnemonic_data, colWidths=[4.5*cm, 12.5*cm],
    style=TableStyle([
        ("BACKGROUND", (0,0), (-1,0), ORANGE),
        ("TEXTCOLOR",  (0,0), (-1,0), WHITE),
        ("FONTNAME",   (0,0), (-1,0), "Helvetica-Bold"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [WHITE, LIGHT_ORANGE]),
        ("GRID", (0,0), (-1,-1), 0.5, GREY_LINE),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 7),
        ("FONTSIZE",   (0,1), (-1,-1), 8.5),
        ("VALIGN", (0,0), (-1,-1), "TOP"),
    ])))
story.append(Spacer(1, 0.4*cm))
story.append(highlight_box(
    "📌 Before Exam Checklist: Know all NHP abbreviations & full forms  •  Population norms for SC/PHC/CHC  •  "
    "Levels of prevention with examples  •  Epidemic investigation steps  •  "
    "Bag technique procedure  •  Colour-coded BMW bags  •  Key Acts & their years"))

# ── build ──
doc.build(story,
          onFirstPage=on_first_page,
          onLaterPages=on_page)

print("PDF generated successfully:", OUTPUT)