109 lines
3.7 KiB
TypeScript
109 lines
3.7 KiB
TypeScript
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import { loadUiPrefs } from "./i18n/prefs";
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import { translate } from "./i18n/messages";
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import type { AppLocale } from "./i18n/types";
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/** Unix nanoseconds (UTC), matching product contract. */
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export function nowUnixNano(): number {
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return Date.now() * 1_000_000;
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}
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function currentLocale(): AppLocale {
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return loadUiPrefs().locale;
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}
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function t(key: string, params?: Record<string, string | number>): string {
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return translate(currentLocale(), key, params);
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}
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export function formatLocalDateTime(nano: number | null | undefined): string {
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if (!nano) return "—";
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const ms = Math.floor(nano / 1_000_000);
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const locale = currentLocale() === "en" ? "en-US" : "zh-TW";
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return new Date(ms).toLocaleString(locale, {
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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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});
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}
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export type SessionExpiryKind = "unknown" | "ok" | "soon" | "expired";
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/** soon = 48h 內到期 */
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export function sessionExpiryKind(
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expiresAt: number | null | undefined,
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now = nowUnixNano(),
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): SessionExpiryKind {
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if (expiresAt == null || expiresAt <= 0) return "unknown";
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if (expiresAt <= now) return "expired";
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const soonMs = 48 * 60 * 60 * 1000;
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if (expiresAt - now <= soonMs * 1_000_000) return "soon";
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return "ok";
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}
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export function formatRelativeFromNow(
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nano: number | null | undefined,
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now = nowUnixNano(),
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): string {
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if (nano == null || nano <= 0) return "—";
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const diffMs = Math.floor((nano - now) / 1_000_000);
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const abs = Math.abs(diffMs);
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const min = Math.round(abs / 60_000);
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const hour = Math.round(abs / 3_600_000);
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const day = Math.round(abs / 86_400_000);
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let span: string;
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if (min < 60) span = t("time.min", { n: Math.max(1, min) });
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else if (hour < 48) span = t("time.hour", { n: hour });
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else span = t("time.day", { n: day });
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if (diffMs < 0) return t("time.expired", { span });
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return t("time.remaining", { span });
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}
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/** 過去時間：通知列表用（剛剛／N 分前） */
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export function formatTimeAgo(nano: number | null | undefined, now = nowUnixNano()): string {
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if (nano == null || nano <= 0) return "—";
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const diffMs = Math.floor((now - nano) / 1_000_000);
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if (diffMs < 45_000) return t("time.justNow");
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const min = Math.floor(diffMs / 60_000);
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if (min < 60) return t("time.minAgo", { n: min });
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const hour = Math.floor(diffMs / 3_600_000);
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if (hour < 48) return t("time.hourAgo", { n: hour });
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const day = Math.floor(diffMs / 86_400_000);
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if (day < 14) return t("time.dayAgo", { n: day });
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return formatLocalDateTime(nano);
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}
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export function formatSessionExpiry(expiresAt: number | null | undefined): {
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kind: SessionExpiryKind;
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absolute: string;
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relative: string;
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label: string;
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} {
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const kind = sessionExpiryKind(expiresAt);
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const absolute = formatLocalDateTime(expiresAt);
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const relative = formatRelativeFromNow(expiresAt);
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const label =
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kind === "unknown"
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? t("time.sessionUnknown")
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: kind === "expired"
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? t("time.sessionExpired", { absolute })
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: kind === "soon"
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? t("time.sessionSoon", { relative, absolute })
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: t("time.sessionOk", { relative, absolute });
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return { kind, absolute, relative, label };
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}
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export function fromDatetimeLocalValue(value: string): number {
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if (!value) return nowUnixNano();
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const ms = new Date(value).getTime();
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if (Number.isNaN(ms)) return nowUnixNano();
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return ms * 1_000_000;
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}
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export function toDatetimeLocalValue(nano: number | null | undefined): string {
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if (!nano) return "";
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const d = new Date(Math.floor(nano / 1_000_000));
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const pad = (n: number) => String(n).padStart(2, "0");
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return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}T${pad(d.getHours())}:${pad(d.getMinutes())}`;
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}
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