//JavaScript program to swap two variables

//take input from the users
let a = prompt('Enter the first variable: ');
let b = prompt('Enter the second variable: ');

//using destructuring assignment
[a, b] = [b, a];

console.log(`The value of a after swapping: ${a}`);
console.log(`The value of b after swapping: ${b}`);

const luhnCheck = num => {
  let arr = (num + '')
    .split('')
    .reverse()
    .map(x => parseInt(x));
  let lastDigit = arr.splice(0, 1)[0];
  let sum = arr.reduce(
    (acc, val, i) => (i % 2 !== 0 ? acc + val : acc + ((val *= 2) > 9 ? val - 9 : val)),
    0
  );
  sum += lastDigit;
  return sum % 10 === 0;
};

luhnCheck('4485275742308327'); // true
luhnCheck(6011329933655299); //  true
luhnCheck(123456789); // false

function copyString(text){
	async function navigatorClipboardCopy(text){
			if(document.location.protocol != "https:"){
					return false;
			}
			return new Promise((resolve, reject)=>{
					navigator.clipboard.writeText(text).then(()=>{resolve(true);}, ()=>{resolve(false);});
			});
	}
	function domCopy(text){
			if(!(document.execCommand)){
					console.warn("They finally deprecated document.execCommand!");
			}

			const input = document.createElement('textarea');
			input.value = text;
			document.body.appendChild(input);
			input.select();
			const success = document.execCommand('copy');
			document.body.removeChild(input);

			return success;
	}
	function promptCopy(){
			prompt("Copy failed. Might have ... somewhere. Check console.", text);
			console.log(text);
	}
	function done(){
			alert("Copied to clipboard");
	}
	navigatorClipboardCopy(text).catch(()=>{return false;}).then((success)=>{
			if(success){
					done();
			}else{
					if(domCopy(text)){
							done();
					}else{
							promptCopy();
					}
			}
	});
}

// Vanilla JS Solution:
var app = document.getElementById('app');

var typewriter = new Typewriter(app, { loop: true });

typewriter
    .typeString("I'm John and I'm a super cool web developer")
    .pauseFor(3000)
    .deleteChars(13) // "web developer" = 13 characters
    .typeString("person to talk with!") // Will display "I'm John and I'm a super cool person to talk with!"
    .start();

// React Solution:
import Typewriter from 'typewriter-effect';

<Typewriter
    options={{ loop: true }}
    onInit={typewriter => {
        typewriter
            .typeString("I'm John and I'm a super cool web developer")
            .pauseFor(3000)
            .deleteChars(13) // "web developer" = 13 characters
            .typeString("person to talk with!") // Will display "I'm John and I'm a super cool person to talk with!"
            .start();
    }}
/>

function filePath(file){
  let folders = file.getParents();
  const parents = [];

  function makePathString(folderArray){
    let path = "";
    folderArray.forEach((folder)=>{
      path += "/" + folder.getName();
    });
    return path;
  }
  
  while (folders.hasNext()) {
    const folder = folders.next(); //This should hopefully remove that folder from the iterator
    parents.unshift(folder);
  }

  return makePathString(parents);
}

function myFunction() {
  const myEmail = Session.getEffectiveUser().getEmail();
  Logger.log("My email is " + myEmail);
  // Log the name of every file in the user's Drive.
  var fileIterator = DriveApp.getFiles();
  const files = []; //List of [File, size] entries
  const filesMaxSize = 10;
  while (fileIterator.hasNext()) {
    var file = fileIterator.next();

    const owner = file.getOwner();

    //Only files I own
    if((!(owner)) || (!(owner.getEmail)) || owner.getEmail() != myEmail){
      continue;
    }

    const entry = [file, file.getSize()];

    function slideUp(arr, index){
      //Let's keep sliding it up so we don't have to sort it at the end.
      for(let i = index; i > 0; --i){ //Stops at 1
        const nextFile = arr[i-1];

        if(nextFile[1] > entry[1]){
          break;
        }else{
          //Swap with the next file to slide the file up
          const temp = arr[i];
          arr[i] = arr[i - 1];
          arr[i - 1] = temp;
        }
      }
    }

    if(files.length < filesMaxSize){
      files.push(entry);

      slideUp(files, files.length - 1);
    }else{
      if(entry[1] > files[files.length - 1][1]){ //If it's bigger than the smallest file in the list.
        files[files.length - 1] = entry;  //Replace the smallest file

        slideUp(files, files.length - 1); //Slide it up
      }
    }
  }

  for(let i = 0; i < filesMaxSize; ++i){
    const file = files[i][0];
    const size = files[i][1];
    Logger.log(size + "\t" + filePath(file) + "/" + file.getName() + "\t" + file.getOwner().getName());
  }
}

function Clock(props) {
  return (
    <div>
      <h1>Hello, world!</h1>
      <h2>It is {props.date.toLocaleTimeString()}.</h2>
    </div>
  );
}

function tick() {
  ReactDOM.render(
    <Clock date={new Date()} />,
    document.getElementById('root')
  );
}

setInterval(tick, 1000);