/* eslint-disable unused-imports/no-unused-vars */ /** * Pregnancy Calculator - Logic Module * * USAGE: Copy this code into the Logic tab of the Tool Builder. * * Calculates pregnancy progress, due date, baby development milestones, * and provides week-by-week guidance based on various input methods. */ // Baby size comparisons by week const BABY_SIZES = { 4: 'Poppy Seed', 5: 'Poppy Seed', 6: 'Blueberry', 7: 'Blueberry', 8: 'Kidney Bean', 9: 'Kidney Bean', 10: 'Strawberry', 11: 'Strawberry', 12: 'Lime', 13: 'Lime', 14: 'Peach', 15: 'Peach', 16: 'Avocado', 17: 'Avocado', 18: 'Sweet Potato', 19: 'Sweet Potato', 20: 'Banana', 21: 'Banana', 22: 'Mango', 23: 'Mango', 24: 'Corn', 25: 'Corn', 26: 'Cauliflower', 27: 'Cauliflower', 28: 'Coconut', 29: 'Coconut', 30: 'Cucumber', 31: 'Cucumber', 32: 'Pineapple', 33: 'Pineapple', 34: 'Cantaloupe', 35: 'Cantaloupe', 36: 'Honeydew Melon', 37: 'Honeydew Melon', 38: 'Pumpkin', 39: 'Pumpkin', 40: 'Watermelon', 41: 'Large Pumpkin', 42: 'Large Pumpkin', }; // Development milestones by week const MILESTONES = { 4: '✨ Embryo implanting', 5: '✨ Embryo implanting', 6: '💓 Heart begins to beat', 7: '💓 Heart begins to beat', 8: '🧠 Brain developing rapidly', 9: '🧠 Brain developing rapidly', 10: '� Baones starting to form', 11: '🦴 Bones starting to form', 12: '👃 Facial features developing', 13: '👃 Facial features developing', 14: '👀 Eyes moving closer', 15: '👀 Eyes moving closer', 16: '� Musscles getting stronger', 17: '💪 Muscles getting stronger', 18: '� MCan hear sounds', 19: '👂 Can hear sounds', 20: '� Hanlfway there!', 21: '👶 Halfway there!', 22: '� Eyelids formed', 23: '👀 Eyelids formed', 24: '🫁 Lungs developing', 25: '🫁 Lungs developing', 26: '👀 Eyes opening', 27: '👀 Eyes opening', 28: '👀 Can blink', 29: '👀 Can blink', 30: '� Gentting stronger', 31: '💪 Getting stronger', 32: '� Sleep c ycles established', 33: '💤 Sleep cycles established', 34: '🫁 Lungs nearly mature', 35: '🫁 Lungs nearly mature', 36: '✨ Shedding lanugo', 37: '✨ Shedding lanugo', 38: '🎯 Full term!', 39: '🎯 Full term!', 40: '� Readyt for birth', 41: '👶 Any day now!', 42: '👶 Any day now!', }; const app = { /** * Define constants (called once on load) */ define() { return { WEEKS_IN_PREGNANCY: 40, PREGNANCY_DURATION_DAYS: 280, CONCEPTION_TO_BIRTH_DAYS: 266, FIRST_TRIMESTER_END: 13, SECOND_TRIMESTER_END: 27, BABY_SIZES, MILESTONES, }; }, /** * Validate inputs before calculation */ validate(ctx) { const { calculationMethod, lmpDate, conceptionDate, knownDueDate, ultrasoundDate, ultrasoundWeeks, cycleLength } = ctx.values; const errors = []; if (calculationMethod === 'lmp' && !lmpDate) { errors.push({ field: 'lmpDate', message: 'Please enter your last menstrual period date' }); } if (calculationMethod === 'conception' && !conceptionDate) { errors.push({ field: 'conceptionDate', message: 'Please enter your conception date' }); } if (calculationMethod === 'dueDate' && !knownDueDate) { errors.push({ field: 'knownDueDate', message: 'Please enter your due date' }); } if (calculationMethod === 'ultrasound') { if (!ultrasoundDate) { errors.push({ field: 'ultrasoundDate', message: 'Please enter your ultrasound date' }); } if (!ultrasoundWeeks || ultrasoundWeeks < 1 || ultrasoundWeeks > 40) { errors.push({ field: 'ultrasoundWeeks', message: 'Weeks must be between 1 and 40' }); } } if (cycleLength && (cycleLength < 21 || cycleLength > 35)) { errors.push({ field: 'cycleLength', message: 'Cycle length typically ranges from 21-35 days' }); } return { valid: errors.length === 0, errors }; }, /** * Main calculation logic */ execute(ctx) { const { calculationMethod, lmpDate, conceptionDate, knownDueDate, ultrasoundDate, ultrasoundWeeks = 12, cycleLength = 28 } = ctx.values; const { WEEKS_IN_PREGNANCY, PREGNANCY_DURATION_DAYS, CONCEPTION_TO_BIRTH_DAYS, FIRST_TRIMESTER_END, SECOND_TRIMESTER_END, BABY_SIZES, MILESTONES } = ctx.constants; const { round } = ctx.helpers; const today = new Date(); today.setHours(0, 0, 0, 0); // Helper: days between two dates const daysBetween = (date1, date2) => { const d1 = new Date(date1); const d2 = new Date(date2); d1.setHours(0, 0, 0, 0); d2.setHours(0, 0, 0, 0); return Math.floor((d2.getTime() - d1.getTime()) / (1000 * 60 * 60 * 24)); }; // Helper: add days to date const addDays = (date, days) => { const result = new Date(date); result.setDate(result.getDate() + days); return result; }; // Helper: format date as DD-MM-YYYY const formatDate = (date) => { const d = new Date(date); const day = String(d.getDate()).padStart(2, '0'); const month = String(d.getMonth() + 1).padStart(2, '0'); const year = d.getFullYear(); return `${day}-${month}-${year}`; }; const cycleLengthAdjustment = cycleLength - 28; let dueDate; let weeksPregnant; let daysPregnant; if (calculationMethod === 'lmp') { const lmp = new Date(lmpDate); dueDate = addDays(lmp, PREGNANCY_DURATION_DAYS + cycleLengthAdjustment); const daysSinceLmp = daysBetween(lmp, today); weeksPregnant = Math.floor(daysSinceLmp / 7); daysPregnant = daysSinceLmp; } else if (calculationMethod === 'conception') { const conception = new Date(conceptionDate); dueDate = addDays(conception, CONCEPTION_TO_BIRTH_DAYS); const daysSinceConception = daysBetween(conception, today); weeksPregnant = Math.floor(daysSinceConception / 7) + 2; daysPregnant = daysSinceConception + 14; } else if (calculationMethod === 'dueDate') { dueDate = new Date(knownDueDate); const daysUntilDue = daysBetween(today, dueDate); weeksPregnant = WEEKS_IN_PREGNANCY - Math.floor(daysUntilDue / 7); daysPregnant = PREGNANCY_DURATION_DAYS - daysUntilDue; } else if (calculationMethod === 'ultrasound') { const usDate = new Date(ultrasoundDate); const daysSinceUs = daysBetween(usDate, today); weeksPregnant = ultrasoundWeeks + Math.floor(daysSinceUs / 7); daysPregnant = (ultrasoundWeeks * 7) + daysSinceUs; dueDate = addDays(usDate, (WEEKS_IN_PREGNANCY - ultrasoundWeeks) * 7); } else { weeksPregnant = 0; daysPregnant = 0; dueDate = today; } // Clamp values weeksPregnant = Math.max(0, Math.min(weeksPregnant, 45)); daysPregnant = Math.max(0, daysPregnant); const daysRemaining = Math.max(0, PREGNANCY_DURATION_DAYS - daysPregnant); const weeksRemaining = Math.floor(daysRemaining / 7); const percentComplete = round((weeksPregnant / WEEKS_IN_PREGNANCY) * 100, 1); // Trimester let trimester; if (weeksPregnant <= FIRST_TRIMESTER_END) { trimester = 1; } else if (weeksPregnant <= SECOND_TRIMESTER_END) { trimester = 2; } else { trimester = 3; } // Baby size const weekForSize = Math.min(Math.max(weeksPregnant, 4), 42); const babySize = BABY_SIZES[weekForSize] || 'Poppy Seed'; // Milestone const weekForMilestone = Math.min(Math.max(weeksPregnant, 4), 42); const developmentMilestone = MILESTONES[weekForMilestone] || '✨ Early development'; // Baby weight estimate let babyWeight; if (weeksPregnant < 8) { babyWeight = 'Less than 1g'; } else if (weeksPregnant < 12) { babyWeight = `${weeksPregnant - 7}g`; } else if (weeksPregnant < 20) { babyWeight = `${(weeksPregnant - 11) * 50}g`; } else if (weeksPregnant < 28) { babyWeight = `${(weeksPregnant - 19) * 100 + 300}g`; } else if (weeksPregnant < 36) { babyWeight = `${(weeksPregnant - 27) * 200 + 1000}g`; } else { babyWeight = `${2600 + (weeksPregnant - 35) * 200}g`; } // Baby length estimate let babyLength; if (weeksPregnant < 8) { babyLength = 'Less than 1cm'; } else if (weeksPregnant < 14) { babyLength = `${weeksPregnant - 6}cm`; } else if (weeksPregnant < 20) { babyLength = `${round(8 + (weeksPregnant - 13) * 1.5, 1)}cm`; } else if (weeksPregnant < 28) { babyLength = `${round(20 + (weeksPregnant - 19) * 2, 1)}cm`; } else if (weeksPregnant < 36) { babyLength = `${round(36 + (weeksPregnant - 27) * 1.5, 1)}cm`; } else { babyLength = `${round(48 + (weeksPregnant - 35) * 0.5, 1)}cm`; } // Important dates let importantDates; if (weeksPregnant < 12) { importantDates = [ 'First prenatal visit (Week 8-10)', 'First ultrasound (Week 11-14)', 'Genetic screening (Week 10-13)', ]; } else if (weeksPregnant < 20) { importantDates = [ 'Anatomy scan (Week 18-22)', 'Feel baby movements (Week 18-20)', 'Gender reveal possible (Week 18-20)', ]; } else if (weeksPregnant < 28) { importantDates = [ 'Glucose screening (Week 24-28)', 'Third trimester begins (Week 28)', 'Start childbirth classes', ]; } else if (weeksPregnant < 36) { importantDates = [ 'Group B strep test (Week 35-37)', 'Weekly checkups begin (Week 36)', 'Prepare hospital bag', ]; } else { importantDates = [ 'Final preparations', 'Watch for labor signs', 'Stay near hospital', ]; } // Weekly tips let weeklyTips; if (trimester === 1) { weeklyTips = [ 'Take prenatal vitamins with folic acid daily', 'Stay hydrated - drink 8-10 glasses of water', 'Get plenty of rest', 'Avoid alcohol, smoking, and raw foods', 'Schedule your first prenatal appointment', ]; } else if (trimester === 2) { weeklyTips = [ 'Continue prenatal vitamins', 'Start gentle pregnancy exercises', 'Sleep on your left side', 'Wear comfortable, supportive shoes', 'Take photos of your growing bump', ]; } else { weeklyTips = [ 'Monitor baby movements daily', 'Practice breathing exercises', 'Pack your hospital bag', 'Prepare nursery and baby items', 'Discuss birth plan with your doctor', ]; } // Trimester info let trimesterInfo; if (trimester === 1) { trimesterInfo = '🌱 First Trimester (Weeks 1-13): Your body is adjusting to pregnancy. You may experience morning sickness, fatigue, and mood swings. This is when all major organs form. Take it easy and listen to your body.'; } else if (trimester === 2) { trimesterInfo = '✨ Second Trimester (Weeks 14-27): Often called the "golden period" - more energy, less nausea! You\'ll start showing and may feel baby movements. This is a great time to prepare the nursery and enjoy your pregnancy.'; } else { trimesterInfo = '🎈 Third Trimester (Weeks 28-40): The home stretch! Baby is growing rapidly and you may feel uncomfortable. Practice breathing exercises, prepare for labor, and get ready to meet your little one!'; } return { success: true, data: { dueDates: formatDate(dueDate), weeksPregnant: Math.floor(weeksPregnant), daysPregnant: Math.floor(daysPregnant), trimester, progressGauge: Math.min(weeksPregnant, 40), percentComplete: Math.min(percentComplete, 100), daysRemaining: Math.max(daysRemaining, 0), weeksRemaining: Math.max(weeksRemaining, 0), babySize, babyWeight, babyLength, developmentMilestone, importantDates, weeklyTips, trimesterInfo, }, outputControl: { babySize: { visible: weeksPregnant >= 4 && weeksPregnant <= 42 }, babyWeight: { visible: weeksPregnant >= 8 && weeksPregnant <= 42 }, babyLength: { visible: weeksPregnant >= 8 && weeksPregnant <= 42 }, developmentMilestone: { visible: weeksPregnant >= 4 && weeksPregnant <= 42 }, importantDates: { visible: weeksPregnant >= 1 && weeksPregnant <= 42 }, weeklyTips: { visible: weeksPregnant >= 1 && weeksPregnant <= 42 }, dueDates: { highlight: weeksPregnant >= 37, variant: weeksPregnant >= 37 ? 'success' : 'default', }, daysRemaining: { variant: daysRemaining < 14 ? 'error' : daysRemaining < 30 ? 'warning' : 'info', }, trimester: { variant: trimester === 1 ? 'info' : trimester === 2 ? 'success' : 'warning', }, }, }; }, /** * Provide contextual feedback based on pregnancy stage */ interpret(ctx) { const { weeksPregnant, daysRemaining } = ctx.results; if (weeksPregnant < 1) { return { variant: 'error', message: 'Please check your dates. The calculation shows you\'re not yet pregnant or the dates may be incorrect.', }; } if (weeksPregnant >= 1 && weeksPregnant <= 4) { return { variant: 'info', message: '🌱 Very early pregnancy! You may not have symptoms yet.', insights: ['Start taking prenatal vitamins with folic acid'], suggestions: ['Schedule your first prenatal appointment', 'Avoid alcohol and smoking'], }; } if (weeksPregnant >= 5 && weeksPregnant <= 13) { return { variant: 'info', message: '🌸 First trimester! Morning sickness may begin.', insights: [ 'Your baby\'s major organs are forming', 'Fatigue is normal during this time', ], suggestions: [ 'Take folic acid daily', 'Schedule your first prenatal appointment', 'Get plenty of rest', ], }; } if (weeksPregnant >= 14 && weeksPregnant <= 27) { return { variant: 'success', message: '✨ Second trimester - the "golden period"!', insights: [ 'More energy, less nausea', 'You may start feeling baby movements around week 18-20', ], suggestions: [ 'Start gentle pregnancy exercises', 'Begin planning the nursery', 'Consider childbirth classes', ], }; } if (weeksPregnant >= 28 && weeksPregnant <= 36) { return { variant: 'warning', message: '🎈 Third trimester! Baby is growing rapidly.', insights: [ 'You may feel more uncomfortable as baby grows', 'Braxton Hicks contractions may begin', ], suggestions: [ 'Start preparing your hospital bag', 'Attend childbirth classes', 'Monitor baby movements daily', ], }; } if (weeksPregnant >= 37 && weeksPregnant <= 40) { return { variant: 'warning', message: '🎯 Full term! Baby could arrive any day now.', insights: [ 'Baby is fully developed', `Only ${daysRemaining} days until your due date!`, ], suggestions: [ 'Watch for signs of labor', 'Stay close to your hospital', 'Rest as much as possible', ], }; } if (weeksPregnant > 40 && weeksPregnant <= 42) { return { variant: 'error', message: '⏰ Past your due date. Contact your healthcare provider.', insights: ['Many healthy babies are born after 40 weeks'], suggestions: [ 'Contact your healthcare provider', 'They may recommend induction', 'Continue monitoring baby movements', ], }; } if (weeksPregnant > 42) { return { variant: 'error', message: '🚨 Significantly overdue. Please consult your healthcare provider immediately.', suggestions: ['Seek medical attention immediately'], }; } return { variant: 'info', message: 'Calculation complete.', }; }, };