34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
import React from 'react';
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export function Timer({timerEnd}) {
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const [timeLeft, setTimeLeft] = React.useState(null);
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React.useEffect(() => {
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if (timerEnd) {
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const intervalId = setInterval(() => {
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const now = new Date();
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const timeLeft = timerEnd - now;
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setTimeLeft(timeLeft > 0 ? timeLeft : 0);
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}, 1000);
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return () => clearInterval(intervalId);
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}
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}, [timerEnd]);
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const formatTimeLeft = timeLeft => {
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if (timeLeft === 0) return 'Spiel vorbei!';
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const hours = Math.floor(timeLeft / (1000 * 60 * 60));
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const minutes = Math.floor((timeLeft % (1000 * 60 * 60)) / (1000 * 60));
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const seconds = Math.floor((timeLeft % (1000 * 60)) / 1000);
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const formattedSeconds = seconds < 10 ? '0' + seconds : seconds;
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let formattedTimeLeft = '';
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if (hours > 0) {
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formattedTimeLeft += hours + 'h ';
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}
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formattedTimeLeft += minutes + ':' + formattedSeconds;
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return formattedTimeLeft;
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};
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return <span>{formatTimeLeft(timeLeft)}</span>;
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}
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