32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
import { BadRequestException } from '@nestjs/common';
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const dayFormatter = new Intl.DateTimeFormat('en-CA', {
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timeZone: 'Asia/Shanghai',
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year: 'numeric',
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month: '2-digit',
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day: '2-digit',
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});
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export const todayKey = (now = new Date()) => dayFormatter.format(now);
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export const databaseDay = (key: string) => new Date(`${key}T00:00:00.000Z`);
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export const startOfDay = (key: string) => new Date(`${key}T00:00:00+08:00`);
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export const addDays = (key: string, days: number) =>
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new Date(databaseDay(key).getTime() + days * 86_400_000).toISOString().slice(0, 10);
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export function analyticsDate(value?: string, now = new Date()) {
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const key = value || todayKey(now);
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if (
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!/^\d{4}-\d{2}-\d{2}$/.test(key) ||
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!Number.isFinite(databaseDay(key).getTime()) ||
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databaseDay(key).toISOString().slice(0, 10) !== key ||
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key > todayKey(now)
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) {
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throw new BadRequestException('统计日期必须为有效的北京时间日期，不能晚于今天');
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}
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return key;
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}
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export function analyticsPage(page = 1, pageSize = 25) {
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if (!Number.isInteger(page) || page < 1 || ![10, 25, 50, 100].includes(pageSize))
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throw new BadRequestException('分页参数无效');
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return { page, pageSize };
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}
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export const mutableDay = (day: string, now = new Date()) => day < todayKey(now) && day >= addDays(todayKey(now), -3);
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