todo.txt

in watch.json
  in include was also
  "\\.js$",


react on server tut
extended intro 
    https://www.smashingmagazine.com/2016/03/server-side-rendering-react-node-express/
https://scotch.io/tutorials/react-on-the-server-for-beginners-build-a-universal-react-and-node-app

https://www.youtube.com/watch?v=tsEHfL-Ul1Y
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prevent uninvited users to be able toget push notifs etc


- - send push notifications about new messages
https://developers.google.com/web/fundamentals/codelabs/push-notifications/
https://github.com/web-push-libs/web-push
https://www.jsdelivr.com/package/npm/push-js?path=example
https://stackoverflow.com/questions/33687298/how-to-send-push-notification-to-web-browser
https://stackoverflow.com/questions/40930285/node-js-and-push-notifications
https://shockoe.com/blog/creating-a-push-notification-server-with-node-js/
https://www.cronj.com/blog/browser-push-notifications-using-javascript/


    to whom do i send push 
        - to each member (subscription) of room, where message came from
          (except sender)
    
    who sees push
      who is not having window focused (WindowClient.focused == false)


    sending msg fromm SW to page
      https://developer.mozilla.org/en-US/docs/Web/API/Client/postMessage
      https://developer.mozilla.org/en-US/docs/Web/API/Client
      https://developer.mozilla.org/en-US/docs/Web/API/WindowClient
      http://craig-russell.co.uk/2016/01/29/service-worker-messaging.html#.Wvr3_NNuZE4



add actions to push notifs
    https://developers.google.com/web/fundamentals/push-notifications/notification-behaviour



improve to whom server-socket sends new messages
https://github.com/jgonera/socket.io-multichat/blob/master/app.js
http://www.psitsmike.com/2011/10/node-js-and-socket-io-multiroom-chat-tutorial/


render chatrooms on server 
    - to learn new thing
    - to save memory in browser (all those fetched files when changing rooms) ?



add: componentWillUnmount: function () {
    socket.removeListener('data', this.handleData);
}


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done
- react app components
  navbar with 3 chat rooms
  chat room feed
  input - text
  input file
- add some gate:
    session?
- use geametric cave paintings as background instead of space?
- add Vlads room and allowRoomAccess mdlwr
- nicer image positioning
- prevent (short) links to be understood as local 
      = add http:// in href attribute for those
- display warning 'not allowed'
- intelligent scrolling to last message
- change message input field to textarea (so it has more lines)
- add req.session gate on file upload API
- add sending files
- re-add send msg on Enter, shift+enter makes new line
- on sockets: added disconnect and error (etc) event listeners on client



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notifs
  https://developer.mozilla.org/en-US/docs/Web/API/notification