| 1 | import { useState, useEffect } from 'react'; |
| 2 | |
| 3 | export function useCountDown() { |
| 4 | const [secondsLeft, setSecondsLeft] = useState(0); |
| 5 | |
| 6 | useEffect(() => { |
| 7 | if (secondsLeft <= 0) return |
| 8 | |
| 9 | const timerId = setTimeout(() => setSecondsLeft(secondsLeft - 1), 1000); |
| 10 | return () => clearTimeout(timerId); |
| 11 | } |
| 12 | , [secondsLeft]); |
| 13 | |
| 14 | function startTimer(seconds: number) { |
| 15 | setSecondsLeft(seconds); |
| 16 | } |
| 17 | |
| 18 | return { |
| 19 | secondsLeft, |
| 20 | startTimer, |
| 21 | }; |
| 22 | } |