msolarczekandClaude Opus 5
2311b35d8c
Statusmaschine (transitionWorkOrder inkl. eventData), Zuweisung, Completion-Guards, Materialvorgabe, Checklisten/Pflichtfotos, Liste/Dashboard-Presets, Suche, Sync-Konflikte, Einstellungen (Auftragsarten, Vorlagen, Nummernkreise). Tests: Übergangsmatrix je Rolle, Kernlogik, Scope/Mandantentrennung, Nummernkreis-Parallelität. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
87 lines
3.5 KiB
TypeScript
87 lines
3.5 KiB
TypeScript
/**
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* Timezone helpers (client-safe, Intl only). Planned dates are entered as wall-clock time in the
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* tenant timezone (TenantSettings.timezone) and stored as UTC.
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*/
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export const DEFAULT_TIMEZONE = "Europe/Berlin";
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export function safeTimeZone(tz: string | null | undefined): string {
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if (!tz) return DEFAULT_TIMEZONE;
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try {
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new Intl.DateTimeFormat("en-US", { timeZone: tz });
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return tz;
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} catch {
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return DEFAULT_TIMEZONE;
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}
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}
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/** Offset (ms) of `timeZone` relative to UTC at instant `at`. */
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export function tzOffsetMs(at: Date, timeZone: string): number {
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const parts = new Intl.DateTimeFormat("en-US", {
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timeZone,
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hourCycle: "h23",
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year: "numeric",
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month: "2-digit",
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day: "2-digit",
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hour: "2-digit",
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minute: "2-digit",
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second: "2-digit",
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}).formatToParts(at);
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const n = (t: string) => Number(parts.find((p) => p.type === t)?.value);
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const asUtc = Date.UTC(n("year"), n("month") - 1, n("day"), n("hour"), n("minute"), n("second"));
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return asUtc - Math.floor(at.getTime() / 1000) * 1000;
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}
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/** "2026-09-14T08:30" (wall time in tz) → UTC Date. Returns undefined for invalid input. */
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export function wallTimeToUtc(value: string, timeZone: string): Date | undefined {
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const m = /^(\d{4})-(\d{2})-(\d{2})(?:T(\d{2}):(\d{2}))?$/.exec(value.trim());
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if (!m) return undefined;
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const tz = safeTimeZone(timeZone);
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const guess = Date.UTC(+m[1], +m[2] - 1, +m[3], m[4] ? +m[4] : 0, m[5] ? +m[5] : 0);
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const first = guess - tzOffsetMs(new Date(guess), tz);
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// second pass corrects DST boundaries
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const result = guess - tzOffsetMs(new Date(first), tz);
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const d = new Date(result);
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return Number.isNaN(d.getTime()) ? undefined : d;
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}
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/** UTC Date → "YYYY-MM-DDTHH:mm" wall time in tz (for <input type="datetime-local">). */
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export function toWallTimeInput(date: Date | null | undefined, timeZone: string): string {
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if (!date) return "";
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const parts = new Intl.DateTimeFormat("en-CA", {
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timeZone: safeTimeZone(timeZone),
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hourCycle: "h23",
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year: "numeric",
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month: "2-digit",
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day: "2-digit",
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hour: "2-digit",
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minute: "2-digit",
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}).formatToParts(date);
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const p = (t: string) => parts.find((x) => x.type === t)?.value ?? "00";
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return `${p("year")}-${p("month")}-${p("day")}T${p("hour")}:${p("minute")}`;
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}
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/** Start/end of the calendar day containing `now` in the given timezone. */
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export function zonedDayBounds(now: Date, timeZone: string): { start: Date; end: Date } {
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const tz = safeTimeZone(timeZone);
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const [y, m, d] = new Intl.DateTimeFormat("en-CA", { timeZone: tz, year: "numeric", month: "2-digit", day: "2-digit" })
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.format(now)
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.split("-")
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.map(Number);
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const guessStart = Date.UTC(y, m - 1, d, 0, 0, 0);
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const start = new Date(guessStart - tzOffsetMs(new Date(guessStart), tz));
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const guessEnd = Date.UTC(y, m - 1, d, 23, 59, 59, 999);
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const end = new Date(guessEnd - tzOffsetMs(new Date(guessEnd), tz));
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return { start, end };
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}
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export function formatDateTime(date: Date | null | undefined, locale: string, timeZone: string): string {
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if (!date) return "";
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return new Intl.DateTimeFormat(locale === "en" ? "en-GB" : "de-DE", { timeZone: safeTimeZone(timeZone), dateStyle: "medium", timeStyle: "short" }).format(date);
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}
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export function formatDate(date: Date | null | undefined, locale: string, timeZone: string): string {
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if (!date) return "";
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return new Intl.DateTimeFormat(locale === "en" ? "en-GB" : "de-DE", { timeZone: safeTimeZone(timeZone), dateStyle: "medium" }).format(date);
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}
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