const products = [
  { number: 1, price: 100, name: 'Orange juice' },
  { number: 2, price: 200, name: 'Soda' },
  { number: 3, price: 150, name: 'Chocolate snack' },
  { number: 4, price: 250, name: 'Cookies' },
  { number: 5, price: 180, name: 'Gummy bears' },
  { number: 6, price: 500, name: 'Condoms' },
  { number: 7, price: 120, name: 'Crackers' },
  { number: 8, price: 220, name: 'Potato chips' },
  { number: 9, price: 80, name: 'Small snack' },
];


function vendingMachine(products, money, productNumber) {



  if (productNumber - 1 > products.length || productNumber <= 0) {

    return "Enter a valid product number";

  }


  if (money < products[productNumber - 1].price) {

    return "Not enough money for this product";

  }




  let product = products[productNumber - 1].name;

  let change = money - products[productNumber - 1].price;

  let arrChange = [500, 200, 100, 50, 20, 10];



  let finalChange = [];

  let holder = 0;


  for (let i = 0; i < arrChange.length; i++) {


    holder += arrChange[i];

    if (holder > change) {

      holder -= arrChange[i];

      continue;

    }


    if (holder <= change) {

      finalChange.push(arrChange[i]);

      i--;

    }




  }





  console.log({ 'product': product, 'change': finalChange });

}


vendingMachine(products, 500, 1);