88 lines
3.3 KiB
TypeScript
88 lines
3.3 KiB
TypeScript
const DEFAULT_TIMEZONE = "Asia/Shanghai";
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let appTimezone = DEFAULT_TIMEZONE;
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export function getAppTimezone(): string {
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return appTimezone;
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}
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export function setAppTimezone(timezone: string): void {
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try {
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new Intl.DateTimeFormat("en", { timeZone: timezone }).format();
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appTimezone = timezone;
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} catch {
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appTimezone = DEFAULT_TIMEZONE;
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}
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}
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export function formatDateTime(value: Date | number | string, timezone = appTimezone): string {
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return new Intl.DateTimeFormat("zh-CN", {
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dateStyle: "medium",
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timeStyle: "short",
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timeZone: timezone,
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}).format(value instanceof Date || typeof value === "number" ? new Date(value) : new Date(value));
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}
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export const formatDate = formatDateTime;
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export const dateText = formatDateTime;
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export function toDateInputValue(value: Date | number | string, timezone = appTimezone): string {
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const date = value instanceof Date || typeof value === "number" ? new Date(value) : new Date(value);
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const parts = new Intl.DateTimeFormat("en-CA", {
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timeZone: timezone,
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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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hourCycle: "h23",
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}).formatToParts(date);
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const values = Object.fromEntries(parts.map((part) => [part.type, part.value]));
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return `${values.year}-${values.month}-${values.day}T${values.hour}:${values.minute}`;
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}
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export const formatDateTimeInput = toDateInputValue;
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export function fromDateInput(value: string, timezone = appTimezone): string {
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const match = /^(\d{4})-(\d{2})-(\d{2})[ T](\d{2}):(\d{2})$/.exec(value.trim());
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if (!match) throw new Error("请选择有效的支付日期和时间");
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const year = Number(match[1]);
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const month = Number(match[2]);
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const day = Number(match[3]);
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const hour = Number(match[4]);
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const minute = Number(match[5]);
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const calendarProbe = new Date(0);
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calendarProbe.setUTCFullYear(year, month - 1, day);
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calendarProbe.setUTCHours(0, 0, 0, 0);
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if (month < 1 || month > 12 || day < 1 || day > 31 || calendarProbe.getUTCFullYear() !== year || calendarProbe.getUTCMonth() !== month - 1 || calendarProbe.getUTCDate() !== day || hour < 0 || hour > 23 || minute < 0 || minute > 59) {
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throw new Error("支付时间无效");
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}
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// Interpret the form value as a wall-clock time in the configured zone.
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const wallUtc = Date.UTC(year, month - 1, day, hour, minute);
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const observedParts = new Intl.DateTimeFormat("en-CA", {
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timeZone: timezone,
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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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hourCycle: "h23",
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}).formatToParts(new Date(wallUtc));
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const observed = Object.fromEntries(observedParts.map((part) => [part.type, part.value]));
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const observedUtc = Date.UTC(Number(observed.year), Number(observed.month) - 1, Number(observed.day), Number(observed.hour), Number(observed.minute));
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return new Date(wallUtc + wallUtc - observedUtc).toISOString();
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}
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export const dateFromInput = fromDateInput;
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export function currentMonth(timezone = appTimezone): string {
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const parts = Object.fromEntries(new Intl.DateTimeFormat("en-CA", {
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timeZone: timezone,
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year: "numeric",
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month: "2-digit",
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}).formatToParts(new Date()).map((part) => [part.type, part.value]));
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return `${parts.year}-${parts.month}`;
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}
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export const monthNow = currentMonth;
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