Program.cs

using BankSimulator.Interfaces;
using BankSimulator.Models;
using BankSimulator.Interfaces.Services;
namespace BankSimulator
{
    public class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to the Bank Simulator!\n");
            // 1️⃣ Create Customers
            IEncryptor encryptor = new EncryptionService();

            var customer1 = new Customer(1001, "RaySha", encryptor);
            customer1.SetPassword("password123");

            var customer2 = new Customer(1002, "Taylor", encryptor);
            customer2.SetPassword("secure456");

            // 2️⃣ Create Accounts for Customers
            var savings1 = new SavingsAccount("12345", "RaySha Savings", 5000, DateTime.Now);
            var checking1 = new CheckingAccount("67890", "RaySha Checking", 3000, DateTime.Now);

            var savings2 = new SavingsAccount("54321", "Taylor Savings", 4000, DateTime.Now);
            var checking2 = new CheckingAccount("09876", "Taylor Checking", 2000, DateTime.Now);

            // Add accounts to customers
            customer1.AddAccount(savings1);
            customer1.AddAccount(checking1);

            customer2.AddAccount(savings2);
            customer2.AddAccount(checking2);

            Console.WriteLine("Customers and Accounts Created!\n");

            // 3️⃣ Deposit and Withdraw
            IBankAccount accountService = new BankAccountService();
            accountService.Deposit(1000, savings1, "Savings");
            accountService.Withdraw(500, checking1, "Checking");
            accountService.Deposit(1500,savings2, "Savings");
            accountService.Withdraw(1000,checking2, "Checking");

            Console.WriteLine("💰 Basic Deposits and Withdrawals Completed!\n");

            // 4️⃣ Transfer Funds (Savings → Checking)
            accountService.Transfer(2000, savings1, checking1);
            Console.WriteLine("🔄 Transfer Completed: 2000 from Savings → Checking\n");

            // 5️⃣ Display All Account Balances
            Console.WriteLine("📊 Account Summaries for RaySha:");
            foreach (var summary in customer1.GetAccountSummaries())
            {
                Console.WriteLine($"   {summary.AccountNumber} → Balance: {summary.Balance}");
            }

            Console.WriteLine("\n📊 Account Summaries for Taylor:");
            foreach (var summary in customer2.GetAccountSummaries())
            {
                Console.WriteLine($"   {summary.AccountNumber} → Balance: {summary.Balance}");
            }

            var firstTransaction = savings1[0]; // using indexer!
            Console.WriteLine($"\nIndexer Example of RaySha→ First transaction: {firstTransaction}");

            // 6️⃣ Display All Transactions for RaySha's Accounts
            Console.WriteLine("\n📜 Transaction History (RaySha Savings):");
            foreach (var t in savings1.Transactions)
            {
                Console.WriteLine(t.ToString());
            }

            Console.WriteLine("\n📜 Transaction History (RaySha Checking):");
            foreach (var t in checking1.Transactions)
            {
                Console.WriteLine(t.ToString());
            }

            // Get transactions
            ITransactionService transaction = new TransactionServices();
            System.Console.WriteLine("\n\nGetTransactions\n");
            var saving1Transaction = transaction.GetTransactions(savings1);
            foreach (var st in saving1Transaction)
            {
                System.Console.WriteLine(st);                
            }

            var checking1Transaction = transaction.GetTransactions(checking1);
            foreach (var ct in checking1Transaction)
            {
                System.Console.WriteLine(ct);                
            }

            Console.WriteLine("\n🏁 Program Finished Successfully!");

        }
    }
}