import {
  BigIntStats,
  CFISBIS,
  statCallback,
  statCallbackBigInt,
  statOptions,
  Stats,
} from "./_fs_stat.ts";

export function lstat(path: string | URL, callback: statCallback): void;
export function lstat(
  path: string | URL,
  options: { bigint: false },
  callback: statCallback,
): void;
export function lstat(
  path: string | URL,
  options: { bigint: true },
  callback: statCallbackBigInt,
): void;
export function lstat(
  path: string | URL,
  optionsOrCallback: statCallback | statCallbackBigInt | statOptions,
  maybeCallback?: statCallback | statCallbackBigInt,
) {
  const callback =
    (typeof optionsOrCallback === "function"
      ? optionsOrCallback
      : maybeCallback) as (
        err: Error | undefined,
        stat: BigIntStats | Stats,
      ) => void;
  const options = typeof optionsOrCallback === "object"
    ? optionsOrCallback
    : { bigint: false };

  if (!callback) throw new Error("No callback function supplied");

  Deno.lstat(path)
    .then((stat) => callback(undefined, CFISBIS(stat, options.bigint)))
    .catch((err) => callback(err, err));
}

export function lstatSync(path: string | URL): Stats;
export function lstatSync(
  path: string | URL,
  options: { bigint: false },
): Stats;
export function lstatSync(
  path: string | URL,
  options: { bigint: true },
): BigIntStats;
export function lstatSync(
  path: string | URL,
  options?: statOptions,
): Stats | BigIntStats {
  const origin = Deno.lstatSync(path);
  return CFISBIS(origin, options?.bigint || false);
}