import dayjs from "dayjs";
import timezone from "dayjs/plugin/timezone";
import utc from "dayjs/plugin/utc";
import duration from "dayjs/plugin/duration";
import { DEFAULT_TZ } from "./constants";

dayjs.extend(timezone);
dayjs.extend(utc);
dayjs.extend(duration);

export function calculateTimeRemaining(
  closingTime: string,
  returnClosed: boolean,
  timezone: string = DEFAULT_TZ
): string {
  const currentDate = dayjs().tz(timezone).format("YYYY-MM-DD");
  const adjustedClosingTime = `${currentDate} ${closingTime.split(" ")[1]}`;
  const closingDateTime = dayjs.tz(
    adjustedClosingTime,
    "YYYY-MM-DD HH:mm:ss",
    timezone
  );
  const currentDateTime = dayjs().tz(timezone);

  const isValid = closingDateTime.isValid();
  const isBefore = closingDateTime.isBefore(currentDateTime);
  const isSame = closingDateTime.isSame(currentDateTime);

  if (!isValid || isBefore || isSame) {
    return returnClosed ? "closed" : "00:00:00";
  }

  const diffDuration = dayjs.duration(closingDateTime.diff(currentDateTime));
  const formattedTime = dayjs
    .utc(diffDuration.asMilliseconds())
    .format("HH:mm:ss");

  return formattedTime;
}

export function isDrawClosed(
  closingTime: string,
  timezone: string = DEFAULT_TZ
): boolean {
  const out = calculateTimeRemaining(closingTime, true, timezone);
  return out === "closed";
}

export function parseToDateString(date: Date): string {
  return dayjs(date).format("YYYY-MM-DD");
}

// export const getCurrentDateInTimeZone(timeZone: string): string {
//   const now = dayjs().utc();
//   const localDateTime = now.tz(timeZone);
//   const formattedDate = localDateTime.format('YYYY-MM-DD');
//
//   return formattedDate;
// }