import { DateTime } from "luxon";
import { DateTimeFormat } from "../types.js";
import { formatMapping } from "../config.js";
/**
* Format a DateTime object according to the specified format
* @param dateTime - DateTime object to format
* @param format - Format to use (predefined or custom format string)
* @param locale - Locale to use for formatting
* @returns Formatted date string
*/
export function formatDateTime(
dateTime: DateTime,
format: DateTimeFormat | string = DateTimeFormat.ISO,
locale: string = "en-US"
): string {
// Set the locale
const dt = dateTime.setLocale(locale);
// Handle predefined formats
if (format === DateTimeFormat.ISO) {
return dt.toISO() || "";
}
if (format === DateTimeFormat.UNIX) {
return Math.floor(dt.toSeconds()).toString();
}
// Use format mapping for predefined formats or use the format string directly
const formatString =
(formatMapping as Record<string, string>)[format] || format;
// For HTTP format, ensure it's in UTC
if (format === DateTimeFormat.HTTP) {
return dt.toUTC().toFormat(formatString);
}
return dt.toFormat(formatString);
}
/**
* Get the current date and time
* @param timezone - IANA timezone identifier
* @returns DateTime object in the specified timezone
*/
export function getCurrentDateTime(timezone: string = "UTC"): DateTime {
return DateTime.now().setZone(timezone);
}
/**
* Parse a date string into a DateTime object
* @param dateString - Date string to parse
* @param format - Format of the date string
* @param timezone - IANA timezone identifier
* @returns DateTime object or null if parsing fails
*/
export function parseDateTime(
dateString: string,
format?: string,
timezone: string = "UTC"
): DateTime | null {
let dt: DateTime;
if (format) {
dt = DateTime.fromFormat(dateString, format, { zone: timezone });
} else {
// Try to parse as ISO
dt = DateTime.fromISO(dateString, { zone: timezone });
// If that fails, try other common formats
if (!dt.isValid) {
dt = DateTime.fromRFC2822(dateString, { zone: timezone });
}
if (!dt.isValid) {
dt = DateTime.fromHTTP(dateString, { zone: timezone });
}
if (!dt.isValid) {
dt = DateTime.fromSQL(dateString, { zone: timezone });
}
}
return dt.isValid ? dt : null;
}
