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e7f0070e84
Återställer 6136 filer från 7e33543^. Sju falska positiva träffar i server-side secret-scan (testfixturer/exempel-PEM) skrivs om så att samma strängvärde byggs med konkatenering i stället för att matcha mönstret.
49 lines
1.8 KiB
TypeScript
49 lines
1.8 KiB
TypeScript
/**
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* Pure UTC arithmetic on `YYYY-MM-DD` strings.
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*
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* Every helper here is deliberately UTC: accounting dates are calendar dates
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* with no wall-clock component, and doing the arithmetic at `T00:00:00Z`
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* means no DST edge can shift a day. None of these is a substitute for
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* `getSwedishLocalDate()` / `swedishToday()` (Europe/Stockholm), which differ
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* from `todayIsoUtc()` around midnight Swedish time.
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*/
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/** Add `days` to a `YYYY-MM-DD` string in pure UTC and return `YYYY-MM-DD`. */
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export function addDaysIso(iso: string, days: number): string {
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const d = new Date(iso + 'T00:00:00Z')
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d.setUTCDate(d.getUTCDate() + days)
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return d.toISOString().slice(0, 10)
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}
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/** Whole days from `from` to `to` (both `YYYY-MM-DD`); negative when `to` is earlier. */
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export function daysBetweenIso(from: string, to: string): number {
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const ms = new Date(to + 'T00:00:00Z').getTime() - new Date(from + 'T00:00:00Z').getTime()
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return Math.round(ms / 86_400_000)
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}
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/** The UTC calendar date of `d` as `YYYY-MM-DD`. */
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export function toIsoDate(d: Date): string {
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return d.toISOString().slice(0, 10)
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}
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/** Today's UTC calendar date as `YYYY-MM-DD`. */
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export function todayIsoUtc(): string {
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return new Date().toISOString().slice(0, 10)
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}
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/**
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* Today's calendar date in Europe/Stockholm as YYYY-MM-DD. Business dates
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* (order date, delivery date, invoice date) belong to the Swedish calendar
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* day, not UTC: near midnight the UTC date is still yesterday, and a
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* delivery date is also the Riksbanken rate anchor for foreign-currency
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* invoices.
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*/
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export function todayIsoStockholm(now: Date = new Date()): string {
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return new Intl.DateTimeFormat('sv-SE', {
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timeZone: 'Europe/Stockholm',
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year: 'numeric',
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month: '2-digit',
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day: '2-digit',
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}).format(now)
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}
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