var cart = [];

function getCart() {
 return cart;
}

function setCart(c) {
  cart = c;
  return cart;
}

function addToCart(item) {
 // write your code here
 var price = Math.floor(100*Math.random() + 1);
 cart.push({itemName: item, itemPrice: price});
 return(`${item} has been added to your cart.`);
 }

function viewCart() {
  // write your code here
  if (cart.length === 0){
    return ('Your shopping cart is empty.');
  } else if (cart.length === 1){
    var oneItem = `In your cart, you have ${cart[0].itemName} at $${cart[0].itemPrice}.`;
    return (oneItem);
  } else if (cart.length === 2){
    var twoItems = `In your cart, you have ${cart[0].itemName} at $${cart[0].itemPrice}, and ${cart[1].itemName} at $${cart[1].itemPrice}.`;
    return (twoItems);
  } else {
    var cartData = [];
    for (var i = 0; i < cart.length-1; i++){
      cartData.push(`${cart[i].itemName} at $${cart[i].itemPrice}`);

    }
    var threePlusItems = `In your cart, you have ${cartData.join(', ')}, and ${cart[cart.length-1].itemName} at $${cart[cart.length-1].itemPrice}.`;

    return (threePlusItems);
  }
}

function total() {
  // write your code here
  var cartItemPrice = [];
  var totalPrice = 0;

  for(var i = 0; i < cart.length; i++) {
    var cartPrice = cart[i].itemPrice;
      cartItemPrice.push(cartPrice);
    }

  for (var a = 0; a < cartItemPrice.length; a++) {
    totalPrice = cartItemPrice[a]+=totalPrice;
  }
  return totalPrice;

}

function removeFromCart(item) {
  console.log(`start`)
  // write your code here
  for (var i = 0; i < getCart().length; i++){
    console.log(getCart()[i]);
    if (getCart()[i].itemName === item){

     getCart().splice(i, 1);
     return cart;

    }
    else {
      return (`That item is not in your cart.`);
    }
  }
console.log(`end`);
}

function placeOrder(cardNumber) {
  // write your code here
  var cartTotal = 0;
  cartTotal = total();
  if (cardNumber){

    for (var i = cart.length; i>= 0; i--) {
        cart.pop();
     return (`Your total cost is $${cartTotal}, which will be charged to the card ${cardNumber}.`);
    }

  }

  else {
  return ("Sorry, we don't have a credit card on file for you.");
}

}