private static void UserLogin()
{
Console.WriteLine("please enter email");
string email = Console.ReadLine();
CustomersList users = new CustomersList(GetCustomers());
Customer customer = users.customers.FirstOrDefault(user => user.EmailAddress == email);
Console.WriteLine("please enter password");
string password = Console.ReadLine();
if (password == customer.Password)
{
password = null;
Console.WriteLine($"Hi {customer.FirstName} {customer.LastName}");
Console.WriteLine($"Your loan balance is {customer.LoanRemaining}");
customer = null;
GC.Collect();
}
else
{
Console.WriteLine("incorrect password");
}
password = null;
customer = null;
users = null;
GC.Collect();
}
private static void UpdateUsersLoanAmount()
{
Console.WriteLine("Select customer to update loan amount of:");
string selectedAccount = Console.ReadLine();
CustomersList customerList = new CustomersList(GetCustomers());
byte[] encryptedData = EncryptCustomerList(customerList);
customerList = null;
customerList = DecryptCustomerList(encryptedData);
encryptedData = null;
Customer customer = customerList.customers.FirstOrDefault(user => user.ID == selectedAccount);
selectedAccount = null;
if (customer != null)
{
Console.WriteLine($"Current loan amount is {customer.LoanRemaining}, please enter new loan amount");
string newLoanAmount = Console.ReadLine();
CustomersList customersListClone = customerList.Clone() as CustomersList;
List <Customer> newCustomers = customersListClone.customers;
customerList = null;
Customer updatedCustomer = new Customer(customer.Address, customer.IBAN, newLoanAmount, customer.Password, customer.ID, customer.FirstName, customer.LastName, customer.EmailAddress);
newLoanAmount = null;
int indexOfTempCustomer = 0;
newCustomers.ForEach(tempCustomer =>
{
if (tempCustomer.ID == customer.ID)
{
indexOfTempCustomer = newCustomers.IndexOf(tempCustomer);
}
else
{
}
});
customer = null;
newCustomers[indexOfTempCustomer] = updatedCustomer;
indexOfTempCustomer = 0;
Console.WriteLine($"Current loan amount is {updatedCustomer.LoanRemaining}");
updatedCustomer = null;
CustomersList updatedCustomers = new CustomersList(newCustomers);
newCustomers = null;
updateCSV(updatedCustomers.customers);
updatedCustomers = null;
GC.Collect();
Console.ReadKey();
}
else
{
Console.WriteLine("Customer account does not exist");
Console.ReadKey();
}
}
private static void ViewCustomerInformation()
{
Console.WriteLine("Select customer to view information of:");
string selectedAccount = Console.ReadLine();
CustomersList customerList = new CustomersList(GetCustomers());
byte[] encryptedData = EncryptCustomerList(customerList);
customerList = null;
customerList = DecryptCustomerList(encryptedData);
encryptedData = null;
Customer customer = customerList.customers.FirstOrDefault(user => user.ID == selectedAccount);
if (customer != null)
{
Console.WriteLine(" \n Customer ID: {0} \n Customer Name: {1} {2} \n Customer Address: {3} \n Customer Loan Remaining: {4} \n", customer.ID, customer.FirstName, customer.LastName, customer.Address, customer.LoanRemaining);
Console.ReadKey();
}
else
{
Console.WriteLine("Customer account does not exist");
Console.ReadKey();
}
customerList = null;
customer = null;
GC.Collect();
}
private static void DeleteUsersLoan()
{
CustomersList customerList = new CustomersList(GetCustomers());
byte[] encryptedData = EncryptCustomerList(customerList);
customerList = null;
customerList = DecryptCustomerList(encryptedData);
encryptedData = null;
CustomersList customersListClone = customerList.Clone() as CustomersList;
customerList = null;
List <Customer> newCustomers = customersListClone.customers;
Console.WriteLine("Select customer whose loan youd like to delete:");
string selectedAccount = Console.ReadLine();
Customer customer = customersListClone.customers.FirstOrDefault(user => user.ID == selectedAccount);
selectedAccount = null;
if (customer != null)
{
newCustomers.Remove(customer);
customer = null;
CustomersList newCustomerList = new CustomersList(newCustomers);
updateCSV(newCustomerList.customers);
newCustomers = null;
customersListClone = null;
GC.Collect();
Console.ReadKey();
}
else
{
Console.WriteLine("Customer account does not exist");
Console.ReadKey();
}
customer = null;
newCustomers = null;
customersListClone = null;
GC.Collect();
}
private static CustomersList DecryptCustomerList(byte[] encryptedSecret)
{
if (encryptedSecret.GetType() == typeof(byte[]))
{
byte[] originalData = Unprotect(encryptedSecret);
CustomersList originalCustomers;
using (MemoryStream memorystream = new MemoryStream(originalData))
{
IFormatter br = new BinaryFormatter();
List <Customer> customers = (List <Customer>)br.Deserialize(memorystream);
originalCustomers = new CustomersList(customers);
}
return(originalCustomers);
}
else
{
return(null);
}
}
private static byte[] EncryptCustomerList(CustomersList customerList)
{
if (customerList.GetType() == typeof(CustomersList))
{
customerList = new CustomersList(GetCustomers());
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, customerList.customers);
bf = null;
byte[] usersByteArray = ms.ToArray();
ms.Close();
ms = null;
customerList = null;
GC.Collect();
byte[] encryptedSecret = Protect(usersByteArray);
return(encryptedSecret);
}
else
{
return(null);
}
}
private static void AdminLogin()
{
string menuSelection = "";
bool loggedIn = false;
string adminPassword = "******";
while (menuSelection != "exit")
{
Console.WriteLine("Please enter admin password or type \"exit\" to quit");
string password = Console.ReadLine();
if (password == adminPassword)
{
loggedIn = true;
menuSelection = "exit";
Console.Clear();
}
if (password == "exit")
{
menuSelection = "exit";
}
}
if (loggedIn == true)
{
adminPassword = null;
GC.Collect();
string customerMenuSelection = "";
while (customerMenuSelection != "exit")
{
CustomersList customerList = new CustomersList(GetCustomers());
byte[] encryptedData = EncryptCustomerList(customerList);
customerList = null;
customerList = DecryptCustomerList(encryptedData);
customerList.customers.ForEach(bank_account =>
{
Console.WriteLine("|{0,20}|{1,20}|{2,20}|", bank_account.ID, bank_account.FirstName, bank_account.LastName);
});
customerList = null;
GC.Collect();
Console.WriteLine("\n Select an option:");
Console.WriteLine("1 - View a customers information");
Console.WriteLine("2 - Update a users loan amount");
Console.WriteLine("3 - Delete a user's loan");
Console.WriteLine("4 - Add a new users loan");
Console.WriteLine("Or type \"exit\" to exit");
customerMenuSelection = Console.ReadLine();
switch (customerMenuSelection)
{
case "1":
ViewCustomerInformation();
break;
case "2":
UpdateUsersLoanAmount();
break;
case "3":
DeleteUsersLoan();
break;
case "4":
AddNewUsersLoan();
break;
case "exit":
Console.WriteLine("Logging you out..");
Console.ReadKey();
break;
default:
Console.WriteLine("Invalid selection");
break;
}
}
}
}
private static void AddNewUsersLoan()
{
CustomersList customerList = new CustomersList(GetCustomers());
byte[] encryptedData = EncryptCustomerList(customerList);
customerList = null;
customerList = DecryptCustomerList(encryptedData);
encryptedData = null;
CustomersList customersListClone = customerList.Clone() as CustomersList;
customerList = null;
List <Customer> newCustomers = customersListClone.customers;
Console.WriteLine("Please enter users information");
string firstName = null;
bool firstnameRegexMatch = false;
while (firstnameRegexMatch == false)
{
Console.WriteLine("Please enter first name:");
firstName = removeCharacter(Console.ReadLine(), ",");
var regex = new Regex(@"[a - zA - Z]{1,25}");
Match match = regex.Match(firstName);
if (match.Success)
{
firstnameRegexMatch = true;
}
else
{
Console.WriteLine("Invalid first name");
firstnameRegexMatch = false;
}
}
string lastName = null;
bool lastNameRegexMatch = false;
while (lastNameRegexMatch == false)
{
Console.WriteLine("Please enter last name:");
lastName = removeCharacter(Console.ReadLine(), ",");
var regex = new Regex(@"[a-zA-Z]{1,25}");
Match match = regex.Match(lastName);
if (match.Success)
{
lastNameRegexMatch = true;
}
else
{
Console.WriteLine("Invalid last name");
lastNameRegexMatch = false;
}
}
string IBAN = null;
bool IBANregexMatches = false;
while (IBANregexMatches == false)
{
Console.WriteLine("Please enter IBAN:");
IBAN = removeCharacter(Console.ReadLine(), ",");
var regex = new Regex(@"[a-zA-Z0-9]{18,34}");
Match match = regex.Match(IBAN);
if (match.Success)
{
IBANregexMatches = true;
}
else
{
Console.WriteLine("Invalid IBAN");
IBANregexMatches = false;
}
}
Console.WriteLine("Please enter address:");
string address = removeCharacter(Console.ReadLine(), ",");
string email = null;
bool emailRegexMatches = false;
while (emailRegexMatches == false)
{
Console.WriteLine("Please enter email:");
email = removeCharacter(Console.ReadLine(), ",");
var regex = new Regex(@"^(?("")("".+?(?<!\\)""@)|(([0-9a-z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-z])@))" +
@"(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-z][-0-9a-z]*[0-9a-z]*\.)+[a-z0-9][\-a-z0-9]{0,22}[a-z0-9]))$");
Match match = regex.Match(email);
if (match.Success)
{
emailRegexMatches = true;
}
else
{
Console.WriteLine("Invalid email");
emailRegexMatches = false;
}
}
Console.WriteLine("Please enter loan balance:");
string loanAmount = removeCharacter(Console.ReadLine(), ",");
Console.WriteLine("Please enter password:"******",");
string id = (Convert.ToInt32(customersListClone.customers.LastOrDefault().ID) + 1).ToString();
Console.WriteLine($"id: {id}");
customersListClone = null;
Customer newCustomer = new Customer(address, IBAN, loanAmount, password, id, firstName, lastName, email);
newCustomers.Add(newCustomer);
newCustomer = null;
CustomersList newCustomerList = new CustomersList(newCustomers);
newCustomers = null;
updateCSV(newCustomerList.customers);
newCustomerList = null;
GC.Collect();
Console.ReadKey();
}