components/plugins/Video.tsx

import React, { useState } from 'react';
import FilePlayer from 'react-player/lib/players/FilePlayer';
import VisibilitySensor from 'react-visibility-sensor';

// lol: https://stackoverflow.com/a/11381730/659988
function mobileAndTabletCheck() {
  if (typeof window === 'undefined') {
    return false;
  }

  let check = false;
  (function (a) {
    if (
      /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(
        a
      ) ||
      /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(
        a.substr(0, 4)
      )
    )
      check = true;
  })(navigator.userAgent || navigator.vendor || window.opera);
  return check;
}

const isMobileOrTablet = mobileAndTabletCheck();

const getInitialMarginBottom = (spaceAfter: Props['spaceAfter']) => {
  if (typeof spaceAfter === 'undefined') {
    return 30;
  } else if (typeof spaceAfter === 'number') {
    return spaceAfter;
  } else if (spaceAfter) {
    return 50;
  }
  return 0;
};

type Props = {
  controls?: any;
  spaceAfter?: boolean | number;
  url?: string;
  file?: string;
  loop?: boolean;
};

const Video: React.FC<Props> = ({ controls, spaceAfter, url, file, loop = true }: Props) => {
  const [hover, setHover] = useState(false);
  const [forceShowControls, setForceShowControls] = useState(false);
  const marginBottom = getInitialMarginBottom(spaceAfter);

  return (
    <div
      onClick={() => {
        if (typeof controls === 'undefined' && !forceShowControls) {
          setForceShowControls(true);
        }
      }}
      style={hover ? { cursor: 'pointer' } : undefined}
      onMouseEnter={() => setHover(true)}
      onMouseLeave={() => setHover(false)}>
      <VisibilitySensor partialVisibility={isMobileOrTablet}>
        {({ isVisible }) => (
          <div
            style={{
              position: 'relative',
              width: '100%',
              height: 400,
              backgroundColor: '#000',
              marginBottom,
            }}>
            <FilePlayer
              url={isVisible || !isMobileOrTablet ? url || `/static/videos/${file}` : null}
              className="react-player"
              width="100%"
              height="400px"
              style={{
                outline: 'none',
                backgroundColor: '#000',
                borderRadius: 5,
              }}
              muted
              playing={isVisible}
              controls={typeof controls === 'undefined' ? forceShowControls : controls}
              playsinline
              loop={loop}
            />
            {isMobileOrTablet ? null : (
              <div
                style={{
                  pointerEvents: 'none',
                  position: 'absolute',
                  top: 0,
                  left: 0,
                  bottom: 0,
                  right: 0,
                  backgroundColor: '#000',
                  width: '100%',
                  height: 400,
                  opacity: isVisible ? 0 : 0.7,
                  transition: 'opacity 0.5s ease-out',
                }}
              />
            )}
          </div>
        )}
      </VisibilitySensor>
    </div>
  );
};

export default Video;