import {Mutex} from "async-mutex"

export const profileMutex = new Mutex()

export function isWeekend(timezone: string): boolean {
  const day = new Intl.DateTimeFormat("en-US", {timeZone: timezone, weekday: "short"}).format(new Date())
  return day === "Sat" || day === "Sun"
}

export function log(msg: string, ...args: unknown[]): void {
  const ts = new Date().toISOString()
  if (args.length > 0) {
    console.log(`[${ts}] ${msg}`, ...args)
  } else {
    console.log(`[${ts}] ${msg}`)
  }
}

export function logError(msg: string, err: unknown): void {
  const ts = new Date().toISOString()
  console.error(`[${ts}] ERROR: ${msg}`, err)
}