using System;

///2. Build a vending machine

//Requirements:

//Snacks are on sale for a dollar each

    // What we know: 1 dollar each

    // 1 dollar can have different combinations of dimes and nickels, e.g.: 9 dimes, 2 nickels

//It accepts dimes (10 cents) and nickels (5 cents) as input

//A “getSnack” method will return a snack if the user has inserted enough money and there are snacks in stock

    //Constraints: user inserted enough money

    //Constraints: there are snacks in stock

//A “getChange” method will return any leftover change in the fewest number of appropriate coins

    // Constraint: return fewest number of coins

//Example:

//As a user, I can input 9 dimes and 5 nickels. I can then try to get a snack and successfully get one. 

    // NOTE: User inserted 1.25 here

//If I then try to get a second snack I won’t get anything. Finally, I can ask for change and I should be given 1 dime and 1 nickel.

​

using System.Collections.Generic;

​

public class Program

{

    // Snacks

    //public static Dictionary<string, double> Snacks = new Dictionary<string, double>();

    // Stores dimes and nickels

    public static Dictionary <string, int> Change = new Dictionary<string, int>();

    public static double moneyInserted = 0;

    // Methods

    // 1. User gets snack:

        //a. User enters money

        //b. User sucess:

            // User gets snack

            // Update how much the user put in

                // If user put in excess money:

                    // return the change - we'd call that method

                // If user did not put in excess - we don't call that method

        //   User fail

            // If user entered money > 0 

                // Return the change - call method

    public static string getSnack(double money)

    {

        string snack = string.Empty;

        moneyInserted = money;

        // Check for constraints first

        //TODO: 1. Check if snack is in stock

        // 2. Check if moneyinserted >= 1

        // Call the getchange()

        if(money < 1)

        {

            throw new Exception("Too little money");

        }

        // If constraints pass

        else

        {

            snack = "snackSuccess";

        }

        return snack;

    }

    // Return combination of dimes and nickels - combination stored in data structure

    public static void getChange()

    {

        if(moneyInserted > 0)

        {

        }

    }

    public static void Main()

    {

        Change.Add("coin", 0);

        Change.Add("nickel", 0);

        //Snacks.Add("chips", 1);

        //Snacks.Add("candy", 1);

        //Snacks.Add("cookies", 1);

        //TODO: run getSnack()

        // TODO: run getChange()

    }

}