// The Cashinator 3000

// As a cashier, I can initialize the cash register with a price list in a simple comma - delimited format.The price list contains product names,
//   SKU's (stock-keeping units, i.e., the product id), the price per unit, and whether the product is taxable. (Staple groceries are typically not taxable.)
// As a cashier, I can initialize the register with a starting amount of money.
// As a cashier, I can initialize the register with a sales tax percentage.
// As a cashier, when I am not actively handling a customer transaction, I can choose to view the current balance of cash that the register contains.
// As a cashier, I can start a new transaction.Transactions have id's and are time-stamped upon creation.
// As a cashier, I can scan one item, whereupon that item is added to the transaction.
// As a customer, I can see the last item scanned and a running subtotal of the current transaction cost.
// As a cashier, I can input the money received from the customer, thus closing out the transaction.
// Change is calculated to minimize the number of bills and coins that must be handled by the cashier.
// As a customer, I can see the grand total and how much change I am to receive.
// As a customer, I can see an itemized receipt of my purchases.
// As a cashier, I can view a report of all the transactions that have occurred since register initialization.Transactions are listed by id, # of items purchased, and the transaction amount.
// As a cashier, I can search all items purchased since register initialization.I can do a partial string match on product name.

const cashRegister = function(startingAmt, startingTax) {
  // create priceList
  this.priceList = [];
  // define balance with given startingAmt or 0
  this.balance = startingAmt || 0;
  // define sales tax with given startingTax or 0
  this.salesTax = startingTax || 0;
  // perhaps define starting transaction here with SKU and price, and taxable field
  this.transactions = {'0': {items} }
  return;
}


// create viewBalance function, I can choose to view the current balance of cash that the register contains.
cashRegister.prototype.viewBalance() {
  // return total balance
  return this.balance;
}

// start new transaction function
cashRegister.prototype.newTransaction() {
  // create ids for transactions
  // create timestasmp after created
}

// check scanned and add item function, I can scan one item, whereupon that item is added to the transaction.
cashRegister.prototype.scanItem(transactionId, item) {
  // takes in a transaction ID and item as parameters and search for that in cashRegister
  // add and push item into transaction according to transaction ID
}

// check last scanned item
cashRegister.prototype.lastScanned(transactionId) {
  // takes a transaction ID paramter and look for it in cash register
  // return item of that ID
}

// create import money and close out transaction function
cashRegister.prototype.importMoney(moneyAmt) {
  // find the matching ID and define money from customer?

}

// create grand total view function
// Change is calculated to minimize the number of bills and coins that must be handled by the cashier.
// As a customer, I can see the grand total and how much change I am to receive.
cashRegister.prototype.grandTotal() {

}

// create itemized receipt function
cashRegister.prototype.viewItemizedReceipt(transactionId) {
  // takes in transaction ID as paramter and look for the items by separating out items in the matching ID
  // iterate through items with for loop or forEach
}

// create report transacctions since last regiser initialization function
// As a cashier, I can view a report of all the transactions that have occurred since register initialization.
// Transactions are listed by id, # of items purchased, and the transaction amount
cashRegister.prototype.reportRegisteredTransactions() {
  // for each existing transaction in cash register, return/console.log transaction Id, # of items, and trans amt
}

// create search purchased items function
cashRegister.prototype.searchPurchasedItems(productName) {
  // iterate through existing transactions in cash register
    // if we find the matching product name, return true?
}