using System;

using System.Collections.Generic;

​

class MainClass {

​

    public static List<string> history = new List<string>();

​

    //public static int balance = 5000;

​

    public static bool CheckIfLegit(int num)

    { // Checks if withdrawal or deposit is legit

​

        bool yes; // If the deposit OR Withdrawal is a legitimate number, like 20, 50, 100 etc not 40, 69 or suchlike. 

​

​

        if (num % 20 == 0 || num % 50 == 0)  // If the number is a multiple of 20 or 50, that means that it will contain, not only 20 and 50 kronor bills, but also 100, 200, 500 and 1000 kronor bills

        {

            yes = true;

        } else {

            yes = false;

        }

​

        return yes;

    }

​

    public static void Withdraw(int with, Account u, string sWit)

    {

​

​

        DateTime time = DateTime.Now;

        string format = "HH:mm";

​

        bool legit = CheckIfLegit(with);

​

        if (legit == true)

        {

            u.balance -= with;

            Console.WriteLine("The withdrawal of " + with + " was successful.");

            Console.WriteLine("Cash retrieved\n");

            WithdrawMoney(with);

            history.Add(time.ToString(format) + "  Withdrawal : " + sWit);

        } else

        {

            Console.WriteLine("You can't withdraw that specific amount.");

        }

​

    }

​

    public static void WithdrawMoney(int money) {

​

        int[] bills = new int[6];

​

        if (money == 0) {

            Console.WriteLine("You can't withdraw that");

        } else {

​

            for (bills[0] = 0; money >= 1000; bills[0]++)

            {

                money = money - 1000;

            }

            for (bills[1] = 0; money >= 500; bills[1]++)

            {

                money = money - 500;

            }

            for (bills[2] = 0; money >= 200; bills[2]++)

            {

                money = money - 200;

            }

            for (bills[3] = 0; money > 100; bills[3]++)

            {

                money = money - 100;

            }

            for (bills[4] = 0; money > 50; bills[4]++)

            {

                money = money - 50;

            }

            for (bills[5] = 0; money > 20; bills[5]++)

            {

                money = money - 20;

            }

​

            for (int i = 0; i < bills.Length; i++)

            {

                switch (i)

                {

                    case 0:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[0]) + "x" + "1000" + " bill(s)");

                        break;

                    case 1:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[1]) + "x" + "500" + "  bill(s)");

                        break;

                    case 2:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[2]) + "x" + "200" + "  bill(s)");

                        break;

                    case 3:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[3]) + "x" + "100" + "  bill(s)");

                        break;

                    case 4:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[4]) + "x" + "50" + "   bill(s)");

                        break;

                    case 5:

                        if (bills[i] > 0)

                            Console.WriteLine(Convert.ToString(bills[5]) + "x" + "20" + "   bill(s)");

                        break;

​

                }

            }

​

        }

​

    }

​

    public static void Deposit(int dep, Account u, string sDep)

    {

​

        DateTime time = DateTime.Now;

        string format = "HH:mm";

​

        bool legit = CheckIfLegit(dep);

​

        if (legit == true)

        {

            u.balance += dep;

            Console.WriteLine("The deposit of " + dep + " was successful.");

            history.Add(time.ToString(format) + "  Deposit    : " + sDep);

        } else

        {

            Console.WriteLine("You can't deposit that specific amount.");

        }

​

    }

​

    public static void Main(string[] args)

    {

        Console.WriteLine("Hello! This is the log-in screen, please enter your credentials!");

        Console.WriteLine("(Just enter your name)");

        string nameU = Console.ReadLine();

​

​

        Account user = new Account(nameU);

​

        Console.WriteLine("Hello and welcome to BankBank!");

        Console.WriteLine("1: Deposit"); //Insättning

        Console.WriteLine("2: Withdrawl"); //Uttag

        Console.WriteLine("3: Account Statement"); //Kontoutdrag

        Console.WriteLine("4: Log Out"); //Avsluta

​

        bool online = true; // Keeps user online

​

        Console.WriteLine("Your current balance is: " + user.balance);

​

        while (online)

        {

            int index = Convert.ToInt32(Console.ReadLine());

            // User chooses what to do

​

            if (index == 1)

            { // Deposit

                Console.WriteLine("Enter amount to be deposited");

                string deposit = Console.ReadLine();

                int nDeposit = Convert.ToInt32(deposit);

                Deposit(nDeposit, user, deposit);

                nDeposit = 0; // Reseting value

​

​

            } else if (index == 2)

            { // Withdrawal

                Console.WriteLine("Enter amount to withdraw");

                string withdrawal = Console.ReadLine();

                int nWithdrawal = Convert.ToInt32(withdrawal);

                Withdraw(nWithdrawal, user, withdrawal);

                //balance -= withdrawal;

                //Console.WriteLine("The withdrawal of " + withdrawal + " was successful.");

                //withdrawal = 0; // Reseting it. 

​

            } else if (index == 3)

            { // Account details

                Console.WriteLine();

                Console.WriteLine();

                Console.WriteLine("Account user: " + user._name);

                Console.WriteLine("Your balance is : " + user.balance);

                Console.WriteLine();

​

​

                Console.WriteLine("=====HISTORY=====");

                foreach (string action in history)

                {

                    Console.WriteLine(action);

                    Console.WriteLine();

                }

​

            } else if (index == 4)

            { // Exit

                Console.WriteLine("Thank you for your visit!");

                online = false;

​

            } else

            {

                Console.WriteLine("That not a valid choice fam");

​

            }

​

​

        }

​

        //Exempelreplik för val 1

        //Exempelreplik för val 2

        Console.WriteLine("Your account balance is: {}"); //Exempelreplik för val 3

                                                          //Exempelreplik för val 4

​

    }

}

​

public class Account {

    public string _name;

    public int balance = 5000;

​

    public Account(string name)

    {

        this._name = name;

        this.balance = 5000;

    }

​

​

​

}