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const mongoose = require('mongoose');
const { Schema } = mongoose;

const userSchema = new Schema({
  id: { type: String, required: true, index: { unique: true } },
  firstName: { type: String, required: true },
  lastName: { type: String, required: true },
  userName: { type: String, required: true },
  email: { type: String, required: true },
  jobTitle: { type: String, required: false }

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const giftCardsInCents = [2000, 3000, 4000, 5500, 35000];

const giftCardsInDollars = giftCardsInCents.map(cents => cents / 100); 

console.log(giftCardsInDollars); // [20, 30, 40, 55, 350]

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const employees = [
  { id: 2002, name: 'Jordan Lake' },
  { id: 2008, name: 'Barney Veers' },
  { id: 5738, name: 'Amber Lee' },
  { id: 8835, name: 'James Herring' }
];

const employeeIds = employees.map(employee => {
  return employee.id;
});

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const giftCards = [5, 10, 20, 100, 20];

const total = giftCards.reduce((accumulator, currentValue) => {
  return accumulator + currentValue;
}, 0);

console.log(total); // 155

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const shoppingCart = [
  {
    item: 'Laptop',
    quantity: 1,
    price: 1899.99
  },
  {
    item: 'Keyboard',
    quantity: 1,
    price: 49.98

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const orders = [
  {
    orderId: 5563,
    total: 673.33
  },
  {
    orderId: 5564,
    total: 274.99
  },
  {

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const zoo = ['tiger', 'horse', 'tiger', 'lion', 'snake', 'bear', 'tiger'];

const animals = zoo.filter((animal, index) => animal.indexOf(animal) !== index);

console.log(animals); // ["horse", "tiger", "lion", "snake", "bear", "tiger"]

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const day1 = [1399.99, 376.33, 542.43]
const day2 = [809.99, 376.3312, 952.77]
const day3 = [199.99, 976.43, 752.33]

const orders = day1.concat(day2).concat(day3);

console.log(orders); // [1399.99, 376.33, 542.43, 809.99, 376.3312, 952.77, 199.99, 976.43, 752.33]

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const shoppingCart = ['desktop', 'keyboard', 'speakers', 'mouse'];

const addToCart = (cart, item) => {
  // checks if item does not exist in cart
  if (cart.indexOf(item) === -1) {
    console.log(`${item} has been added to the shopping cart`);
    return cart.push(item);
  }

  return console.log(`${item} is already in the shopping cart`);

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const veggies = ['kale', 'carrots', 'tomato', 'broccoli', 'mushrooms'];

console.log(veggies.indexOf('tomato')); // 2