import { TIMEZONE } from '../constants';
export function getChileOffsetMs(dateStr: string): number {
const ref = new Date(`${dateStr}T12:00:00Z`);
const utcStr = ref.toLocaleString('en-US', { timeZone: 'UTC' });
const chileStr = ref.toLocaleString('en-US', { timeZone: TIMEZONE });
return new Date(chileStr).getTime() - new Date(utcStr).getTime();
}
export function getDateRangeUTC(dateStr: string): { start: string; end: string } {
const offsetMs = getChileOffsetMs(dateStr);
const start = new Date(new Date(`${dateStr}T00:00:00Z`).getTime() - offsetMs);
const end = new Date(new Date(`${dateStr}T23:59:59.999Z`).getTime() - offsetMs);
return { start: start.toISOString(), end: end.toISOString() };
}
export function toUTCTimestamp(dateStr: string, timeStr: string): string {
const offsetMs = getChileOffsetMs(dateStr);
const local = new Date(`${dateStr}T${timeStr}:00Z`);
return new Date(local.getTime() - offsetMs).toISOString();
}
