import dayjs from 'dayjs'; import utc from 'dayjs/plugin/utc.js'; import {getCurrentLocale} from '../utils.ts'; import type {ConfigType} from 'dayjs'; dayjs.extend(utc); /** * Returns an array of millisecond-timestamps of start-of-week days (Sundays) * * @param startDate The start date. Can take any type that dayjs accepts. * @param endDate The end date. Can take any type that dayjs accepts. */ export function startDaysBetween(startDate: ConfigType, endDate: ConfigType): number[] { const start = dayjs.utc(startDate); const end = dayjs.utc(endDate); let current = start; // Ensure the start date is a Sunday while (current.day() !== 0) { current = current.add(1, 'day'); } const startDays: number[] = []; while (current.isBefore(end)) { startDays.push(current.valueOf()); current = current.add(1, 'week'); } return startDays; } export function firstStartDateAfterDate(inputDate: Date): number { if (!(inputDate instanceof Date)) { throw new Error('Invalid date'); } const dayOfWeek = inputDate.getUTCDay(); const daysUntilSunday = 7 - dayOfWeek; const resultDate = new Date(inputDate.getTime()); resultDate.setUTCDate(resultDate.getUTCDate() + daysUntilSunday); return resultDate.valueOf(); } type DayData = { week: number, additions: number, deletions: number, commits: number, } export function fillEmptyStartDaysWithZeroes(startDays: number[], data: DayData): DayData[] { const result = {}; for (const startDay of startDays) { result[startDay] = data[startDay] || {'week': startDay, 'additions': 0, 'deletions': 0, 'commits': 0}; } return Object.values(result); } let dateFormat: Intl.DateTimeFormat; // format a Date object to document's locale, but with 24h format from user's current locale because this // option is a personal preference of the user, not something that the document's locale should dictate. export function formatDatetime(date: Date | number): string { if (!dateFormat) { // TODO: replace `hour12` with `Intl.Locale.prototype.getHourCycles` once there is broad browser support dateFormat = new Intl.DateTimeFormat(getCurrentLocale(), { day: 'numeric', month: 'short', year: 'numeric', hour: 'numeric', hour12: !Number.isInteger(Number(new Intl.DateTimeFormat([], {hour: 'numeric'}).format())), minute: '2-digit', timeZoneName: 'short', }); } return dateFormat.format(date); }