program

using System;
using System.Collections.Generic;
using Newtonsoft.Json;

namespace ispit
{
    class Program
    {
        static List<Customers> AllCustomers = new List<Customers>();
        static void Main(string[] args)
        {
            // data receiver
            if (System.IO.File.ReadAllText("./user.json").Length != 0)
            {
                var i = System.IO.File.ReadAllText("./user.json");
             AllCustomers = JsonConvert.DeserializeObject<List<Customers>>(i);

            foreach (var customer in AllCustomers)
            {
             var k = System.IO.File.ReadAllText("./user.json");
             AllCustomers = JsonConvert.DeserializeObject<List<Customers>>(k);
            }
            }


            // program
            while (true)
            {
                Console.WriteLine("Welcome to our bank \n 1. New Account \n 2. Operations \n 3. Exit \n*");
                int selection = Convert.ToInt32(Console.ReadLine());
                switch (selection)
                {
                case 1:
                NewAccount();
                break;

                case 2:
                SelectOperation2(SelectOperation1());
                break;

                case 3:
                Console.WriteLine("Operations done, goodbye!");
                break;
                default:
                Console.WriteLine("Invalid input!");
                break;
                }
                if(selection==3)
                {
                    break;
                }
                Console.WriteLine("*");
            }

            // data saver
            foreach (var customer in AllCustomers)
            {
                var j = JsonConvert.SerializeObject(AllCustomers);
                System.IO.File.WriteAllText("./user.json", j);
            }

        }

        public static Customers NewAccount()
        {
            Customers ACustomer = new Customers();
            Console.WriteLine("Enter your name: ");
            ACustomer.Name = Console.ReadLine();
            Console.WriteLine("Enter your address: ");
            ACustomer.Address = Console.ReadLine();
            Console.WriteLine("Enter your phone number: ");
            ACustomer.Phone = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("The initial ammount: ");
            ACustomer.InitialAmmount = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Enter your password: ");
            ACustomer.Password = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Re-enter your password: ");
            while (true)
            {
                int PwCheck = Convert.ToInt32(Console.ReadLine());
                if (PwCheck == ACustomer.Password)
                {
                    Console.WriteLine("Password saved!");
                    break;
                }
                else
                {
                    Console.WriteLine("Passwords do not match, retype your password");
                }
            }

            ACustomer.AccountNumber = AllCustomers.Count;
            AllCustomers.Add(ACustomer);
            Console.WriteLine("Your account has successfully been created as: ");
            Console.WriteLine("Name: {0}\n Adress: {1}\n Phone number: {2}\n Initial ammount: {3}\n Account number: {4}\n Do not forget your account number and password",
                 AllCustomers[ACustomer.AccountNumber].Name,
                 AllCustomers[ACustomer.AccountNumber].Address,
                 AllCustomers[ACustomer.AccountNumber].Phone,
                 AllCustomers[ACustomer.AccountNumber].InitialAmmount,
                 AllCustomers[ACustomer.AccountNumber].AccountNumber);
            return ACustomer;
        }

        public static int SelectOperation1()
        {
            Console.WriteLine("Enter your account number: ");
            int AccNmbr = Convert.ToInt32(Console.ReadLine());
            if (AccNmbr == AllCustomers[AccNmbr].AccountNumber)
            {
                Console.WriteLine("Enter your password: ");
                for (int i = 0; i < 3; i++)
                {
                    if (i == 3)
                    {
                        Console.WriteLine("Your account has been blocked since your password is wrong. Call your bank! ");
                        break;
                    }
            int AccPw = Convert.ToInt32(Console.ReadLine());
            if (AccPw == AllCustomers[AccNmbr].Password)
                {
                    Console.WriteLine("Entering: ");
                    break;
                }
                Console.WriteLine("Re-enter your password: ");
                }
            }

            return AllCustomers[AccNmbr].AccountNumber;

        }
        public static int SelectOperation2 (int AccNmbr)
        {

            while(true)
            {
                Console.WriteLine("Choose an operation from the menu \n 1. Change Password \n 2. Deposite \n 3. Withdraw \n 4. Print \n 5. Exit");
                int input = Convert.ToInt32(Console.ReadLine());
            switch (input)
            {
                case 1:
                Operations.ChangePassword();
                break;

                case 2:
                double addition = Operations.Deposite(AllCustomers[AccNmbr].InitialAmmount);
                AllCustomers[AccNmbr].InitialAmmount = AllCustomers[AccNmbr].InitialAmmount + addition;
                break;

                case 3:
                double substract = Operations.Withdraw(AllCustomers[AccNmbr].InitialAmmount);
                AllCustomers[AccNmbr].InitialAmmount = AllCustomers[AccNmbr].InitialAmmount - substract;
                break;

                case 4:
                Operations.Print(AllCustomers[AccNmbr]);
                break;
                case 5:
                Console.WriteLine("Good Bye!");
                return 0;
                default:
                Console.WriteLine("Invalid input!");
                break;
            }
                Console.WriteLine("*");
            }
        }

    }
}