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Merge pull request #9 from orrc/orrc/multi-day-holidays

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Support multi-day holidays
This commit is contained in:
Zachary
2024-11-22 19:07:29 +01:00
committed by GitHub
parent cca813b3e9 3d89eb8582
commit 787f846b6a
1 changed files with 13 additions and 5 deletions
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18
src/lib/holidayUtils.ts
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@@ -30,13 +30,21 @@ const formatDate = (date: Date): string => date.toLocaleDateString('en-US', { mo
// Get holidays for a specific year and country // Get holidays for a specific year and country
export function getHolidaysForYear(countryCode: string, year: number, stateCode?: string): { date: Date; name: string }[] { export function getHolidaysForYear(countryCode: string, year: number, stateCode?: string): { date: Date; name: string }[] {
const hd = stateCode ? new Holidays(countryCode, stateCode) : new Holidays(countryCode); // The date-holidays lib has translations for many holidays, but defaults to using the language of the country.
// We can pass in the browser's preferred languages (though the lib doesn't fall back, e.g. from `de-AT` to `de`)
const languages = navigator.languages.map(lang => lang.split('-')[0]);
// Start/end dates are returned in that country/state's time zone, so we need to provide our time zone to localise
const opts = { languages, timezone: Intl.DateTimeFormat().resolvedOptions().timeZone };
const hd = stateCode ? new Holidays(countryCode, stateCode, opts) : new Holidays(countryCode, opts);
return hd.getHolidays(year) return hd.getHolidays(year)
.filter(holiday => holiday.type === 'public') .filter(holiday => holiday.type === 'public')
.map(holiday => ({ .flatMap(holiday =>
date: new Date(holiday.date), // To handle single- and multi-day holidays, we generate a holiday entry for each day in the period
name: holiday.name Array.from({ length: daysBetween(holiday.start, holiday.end) }, (_, i) => ({
})); date: new Date(holiday.start.getFullYear(), holiday.start.getMonth(), holiday.start.getDate() + i),
name: holiday.name,
}))
);
} }
// Optimize days off to create the longest possible chains // Optimize days off to create the longest possible chains