import React, { useEffect, useState } from 'react'

  const Countodown = ({ expire, setExpired, expireDate }) => {

    const calculateTimeLeft = () => {
      const difference = +new Date(expireDate) - +new Date();
      let timeLeft = {};

      if (difference > 0) {
        timeLeft = {
          days: Math.floor(difference / (1000 * 60 * 60 * 24)),
          hours: Math.floor((difference / (1000 * 60 * 60)) % 24),
          minutes: Math.floor((difference / 1000 / 60) % 60),
          seconds: Math.floor((difference / 1000) % 60),
        };
      } else {
        setExpired(true)
      }

      return timeLeft;
    };

    const [timeLeft, setTimeLeft] = useState(calculateTimeLeft());

    useEffect(() => {
      setTimeout(() => {
        setTimeLeft(calculateTimeLeft());
      }, 1000);
    });

    const timerComponents = [];

    Object.keys(timeLeft).forEach((interval, i) => {
      timerComponents.push(
        <div key={i} className='countdownbanner__cell'>
          <div>
            {timeLeft[interval]}
          </div>
          <div>
            {interval}{" "}
          </div>
          <style jsx>{`
          .countdownbanner__cell {
            background-color: #fff;
            border-radius: 8px;
            width: 80px;
            height: 80px;
            display: flex;
            flex-direction: column;
            margin: 6px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
          }
          @media (max-width: 768px) {
            .countdownbanner__cell {
              font-size: 14px;
              width: 56px;
              height: 56px;
              margin: 3px;
            }
          }

        `}</style>
        </div>
      );
    });

    return (
      <div>
        <div className='countdownbanner'>

            <div className='countdownbanner-timer'>
              {timerComponents.length ? timerComponents : <span className='expired'>{`Time's up!`}</span>}
            </div>
        </div>

        <style jsx>{`

          .countdownbanner {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 12px;
          }

          @media (max-width: 768px) {
            .countdownbanner {
              padding: 0;
            }
          }

          .countdownbanner-logo {
            height: 40vmin;
            pointer-events: none;
          }

          @media (prefers-reduced-motion: no-preference) {
            .countdownbanner-logo {
              animation: countdownbanner-logo-spin infinite 20s linear;
            }
          }

          .countdownbanner-header {
            background-color: #282c34;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: calc(10px + 2vmin);
            color: white;
          }

          .countdownbanner-link {
            color: #61dafb;
          }

          @keyframes countdownbanner-logo-spin {
            from {
              transform: rotate(0deg);
            }

            to {
              transform: rotate(360deg);
            }
          }

          .countdownbanner-timer {
            display: flex;
            margin: 0 auto;
          }

          .countdownbannercell {
            background-color: #fff;
            border-radius: 8px;
            width: 64px;
            height: 64px;
            display: flex;
            flex-direction: column;
            margin: 6px;
            align-items: center;
            justify-content: center;
            font-size: 42px;
          }

        `}</style>
      </div>
    )
  }

  export default Countodown