import { date } from '../datetime/date.ts'

export function gmdate(format: string, timestamp?: string | number | Date): string {
  //      discuss at: https://locutus.io/php/gmdate/
  // parity verified: PHP 8.3
  //     original by: Brett Zamir (https://brett-zamir.me)
  //        input by: Alex
  //     bugfixed by: Brett Zamir (https://brett-zamir.me)
  //       example 1: gmdate('H:m:s \\m \\i\\s \\m\\o\\n\\t\\h', 1062402400); // Return will depend on your timezone
  //       returns 1: '07:09:40 m is month'

  const dt =
    typeof timestamp === 'undefined'
      ? new Date() // Not provided
      : timestamp instanceof Date
        ? new Date(timestamp) // Javascript Date()
        : new Date(Number(timestamp) * 1000) // UNIX timestamp (auto-convert to int)

  const ts = Date.parse(dt.toUTCString().slice(0, -4)) / 1000

  return date(format, ts)
}