holiday-calendar-research.js•4.07 kB
#!/usr/bin/env node
/**
* Research script for holiday calendar support
* Testing different approaches for handling holidays
*/
console.log('=== Holiday Calendar Research ===\n');
// Approach 1: Simple holiday data structure
console.log('1. Simple holiday data structure:');
const simpleHolidays = {
US: {
2025: [
{ date: '2025-01-01', name: "New Year's Day" },
{ date: '2025-07-04', name: 'Independence Day' },
{ date: '2025-12-25', name: 'Christmas Day' },
],
},
UK: {
2025: [
{ date: '2025-01-01', name: "New Year's Day" },
{ date: '2025-04-18', name: 'Good Friday' },
{ date: '2025-12-25', name: 'Christmas Day' },
],
},
};
console.log(JSON.stringify(simpleHolidays, null, 2));
// Approach 2: Holiday rules (for recurring holidays)
console.log('\n2. Holiday rules structure:');
const holidayRules = {
US: {
fixed: [
{ month: 1, day: 1, name: "New Year's Day" },
{ month: 7, day: 4, name: 'Independence Day' },
{ month: 12, day: 25, name: 'Christmas Day' },
],
floating: [
{ month: 1, weekday: 1, week: 3, name: 'Martin Luther King Jr. Day' }, // 3rd Monday in January
{ month: 11, weekday: 4, week: 4, name: 'Thanksgiving' }, // 4th Thursday in November
],
},
};
console.log(JSON.stringify(holidayRules, null, 2));
// Approach 3: Enhanced parameters structure
console.log('\n3. Enhanced tool parameters:');
const enhancedParams = {
// Current parameters
start_date: '2025-01-01',
end_date: '2025-12-31',
timezone: 'America/New_York',
// Option 1: Country/region code
holiday_calendar: 'US', // or 'US-NY' for state-specific
// Option 2: Multiple regions
holiday_regions: ['US', 'US-NY'],
// Option 3: Custom holidays in addition to calendar
custom_holidays: ['2025-06-19'], // Juneteenth
// Option 4: Holiday configuration object
holidays: {
calendar: 'US',
include_observed: true, // If holiday falls on weekend, include observed date
custom: ['2025-06-19'],
},
};
console.log(JSON.stringify(enhancedParams, null, 2));
// Approach 4: Test date-fns utilities
console.log('\n4. Testing date-fns utilities for holiday calculations:');
const { isWeekend, getDay, setDate, setMonth, addDays, nextMonday } = require('date-fns');
// Calculate observed holiday (if falls on weekend)
function getObservedDate(date) {
const day = getDay(date);
if (day === 0) {
// Sunday
return addDays(date, 1); // Observe on Monday
} else if (day === 6) {
// Saturday
return addDays(date, -1); // Observe on Friday
}
return date;
}
const christmas2025 = new Date(2025, 11, 25); // Thursday
const july4th2026 = new Date(2026, 6, 4); // Saturday
console.log('Christmas 2025 (Thursday):', christmas2025.toDateString());
console.log('July 4th 2026 (Saturday):', july4th2026.toDateString());
console.log('July 4th 2026 observed:', getObservedDate(july4th2026).toDateString());
// Approach 5: Holiday data sources research
console.log('\n5. Holiday data sources:');
console.log('- Google Calendar API: Provides holiday calendars by country');
console.log('- Nager.Date API: Free public holiday API');
console.log('- date-holidays npm package: Comprehensive but adds dependency');
console.log('- Embedded data: Most reliable, no external dependencies');
// Approach 6: Proposed implementation strategy
console.log('\n6. Proposed implementation strategy:');
console.log('Phase 1: Embed common holidays for major countries (US, UK, CA, AU)');
console.log('Phase 2: Support holiday calendar parameter');
console.log('Phase 3: Allow custom holiday definitions');
console.log('Phase 4: Support observed holidays option');
// Test data size considerations
console.log('\n7. Data size considerations:');
const countries = 10;
const yearsSupported = 5;
const avgHolidaysPerCountry = 15;
const bytesPerHoliday = 50;
const totalSize = countries * yearsSupported * avgHolidaysPerCountry * bytesPerHoliday;
console.log(
`Estimated data size for ${countries} countries, ${yearsSupported} years: ${totalSize / 1024}KB`,
);