import * as React from "react"
import { useCallbackRef } from "./use-callback-ref"

/**
 * React hook that provides a declarative `setTimeout`
 *
 * @param callback the callback to run after specified delay
 * @param delay the delay (in ms)
 */
export function useTimeout(
  callback: (...args: any[]) => void,
  delay: number | null,
) {
  const fn = useCallbackRef(callback)

  React.useEffect(() => {
    if (delay == null) return undefined

    let timeoutId: number | null = null

    timeoutId = window.setTimeout(() => {
      fn()
    }, delay)

    return () => {
      if (timeoutId) {
        window.clearTimeout(timeoutId)
      }
    }
  }, [delay, fn])
}