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Paul #2

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e951cb2
Main menu with functional Signup and Login
bwaromale Mar 3, 2023
d47f849
Account Activities(Deposit, Withdrawal, Check Balance, Check Account …
bwaromale Mar 3, 2023
18a4fbc
Deposit and Login modified to reject null or empty input from user
bwaromale Mar 3, 2023
a4822d1
Deposit and Withdraw modified to ensure it does not take null or empt…
bwaromale Mar 3, 2023
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25 changes: 25 additions & 0 deletions FraudulentBank.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.3.32929.385
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FraudulentBank", "FraudulentBank\FraudulentBank.csproj", "{917B68DA-F0CB-4F4F-8CEE-6CE34E642A28}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{917B68DA-F0CB-4F4F-8CEE-6CE34E642A28}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{917B68DA-F0CB-4F4F-8CEE-6CE34E642A28}.Debug|Any CPU.Build.0 = Debug|Any CPU
{917B68DA-F0CB-4F4F-8CEE-6CE34E642A28}.Release|Any CPU.ActiveCfg = Release|Any CPU
{917B68DA-F0CB-4F4F-8CEE-6CE34E642A28}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {AF8FD3AB-96BA-4ACB-8BBD-24990CE4331B}
EndGlobalSection
EndGlobal
165 changes: 165 additions & 0 deletions FraudulentBank/Activity.cs
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using System;

public class Activity
{
public static void Deposit(string fileName, string accountNumber)
{
string[] lines = File.ReadAllLines(fileName);

var line = lines.FirstOrDefault(l => l.StartsWith(accountNumber + ","));

if (line != null)
{

string[] values = line.Split(',');
decimal balance = decimal.Parse(values[4]);

Console.WriteLine("Enter amount to deposit:");
var inputAmt = Console.ReadLine();
if (string.IsNullOrEmpty(inputAmt))
{
Console.WriteLine("---INVALID DEPOSIT AMOUNT NOTIFICATION---");
Console.WriteLine("Invalid Deposit Amount!");
Console.WriteLine("---------------------");
}
else if (decimal.TryParse(inputAmt, out decimal amount))
{
if (amount < 0)
{
Console.WriteLine("---INVALID DEPOSIT AMOUNT NOTIFICATION---");
Console.WriteLine("Invalid Deposit Amount!");
Console.WriteLine("---------------------");
}
else
{
balance += amount;
values[4] = balance.ToString();
string newLine = string.Join(",", values);
int index = Array.IndexOf(lines, line);
lines[index] = newLine;
File.WriteAllLines(fileName, lines);

Console.WriteLine("---DEPOSIT NOTIFICATION--");
Console.WriteLine($"Deposit successful! New balance is: N{balance:N2}");
Console.WriteLine("-----------------");
}
}
else
{
Console.WriteLine("---INVALID DEPOSIT AMOUNT NOTIFICATION---");
Console.WriteLine("Invalid Deposit Amount!");
Console.WriteLine("---------------------");
}
}
else
{
Console.WriteLine("Invalid account number. Please try again.");
}
}

public static void Withdraw(string fileName, string accountNumber)
{
string[] lines = File.ReadAllLines(fileName);

var line = lines.FirstOrDefault(l => l.StartsWith(accountNumber + ","));

if (line != null)
{
string[] values = line.Split(',');
decimal balance = decimal.Parse(values[4]);

Console.WriteLine("Enter amount to withdraw:");
var inputAmt = Console.ReadLine();
if (string.IsNullOrEmpty(inputAmt))
{
Console.WriteLine("---INVALID WITHDRAWAL AMOUNT NOTIFICATION---");
Console.WriteLine("Invalid Withdrawal Amount!");
Console.WriteLine("---------------------");
}
else if(decimal.TryParse(inputAmt, out decimal amount))
{
if (amount > balance)
{
Console.WriteLine("---INSUFFICIENT BALANCE");
Console.WriteLine("Insufficient balance. Please try again.");
Console.WriteLine("--------------------");
}
else
{
balance -= amount;
values[4] = balance.ToString();
string newLine = string.Join(",", values);
int index = Array.IndexOf(lines, line);
lines[index] = newLine;
File.WriteAllLines(fileName, lines);

Console.WriteLine("---WITHDRAWAL NOTIFICATION--");
Console.WriteLine($"Withdrawal successful! New balance is: N{balance:N2}");
Console.WriteLine("-------------------");
}
}
else
{
Console.WriteLine("---INVALID WITHDRAWAL AMOUNT NOTIFICATION---");
Console.WriteLine("Invalid Withdrawal Amount!");
Console.WriteLine("---------------------");
}

}
else
{
Console.WriteLine("Invalid account number. Please try again.");
}
}

public static void CheckBalance(string fileName, string accountNumber)
{
string[] lines = File.ReadAllLines(fileName);

var line = lines.FirstOrDefault(l => l.StartsWith(accountNumber + ","));

if (line != null)
{
string[] values = line.Split(',');
decimal balance = decimal.Parse(values[4]);
Console.WriteLine("---BALANCE NOTIFICATION--");
Console.WriteLine($"Your balance is: N{balance:N2}");
Console.WriteLine("--------------------");
}
else
{
Console.WriteLine("Invalid account number. Please try again.");
}
}
public static void ShowAccountSummary(string fileName, string accountNumber)
{
string[] lines = File.ReadAllLines(fileName);

foreach (string line in lines)
{
string[] fields = line.Split(',');

if (fields[0] == accountNumber)
{
Console.WriteLine("---ACCOUNT SUMMARY---");
Console.WriteLine($"Account Number: {fields[0]}");
Console.WriteLine($"Account Name: {fields[1]}");
Console.WriteLine($"Email: {fields[2]}");
double currentBalance = 0;
if (double.TryParse(fields[4], out currentBalance))
{
Console.WriteLine($"Current Balance: N{currentBalance:N2}");
}
else
{
Console.WriteLine("Invalid balance format.");
}
Console.WriteLine("--------------------");
return;
}
}

Console.WriteLine("Account not found.");
}
}

10 changes: 10 additions & 0 deletions FraudulentBank/FraudulentBank.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
42 changes: 42 additions & 0 deletions FraudulentBank/LoggedInMenu.cs
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using System;

public class LoggedInMenu
{
public static void ShowMenu(string fileName, string accountNumber)
{
while (true)
{
Console.WriteLine("Please choose an option:");
Console.WriteLine("1. Deposit");
Console.WriteLine("2. Withdraw");
Console.WriteLine("3. Check balance");
Console.WriteLine("4. Show Account Summary");
Console.WriteLine("5. Logout");

Console.WriteLine("Choice: ");
var choice = Console.ReadLine();

switch (choice)
{
case "1":
Activity.Deposit(fileName, accountNumber);
break;
case "2":
Activity.Withdraw(fileName, accountNumber);
break;
case "3":
Activity.CheckBalance(fileName, accountNumber);
break;
case "4":
Activity.ShowAccountSummary(fileName, accountNumber);
break;
case "5":
Console.WriteLine("Logout successful!");
return;
default:
Console.WriteLine("Invalid choice. Please try again.");
break;
}
}
}
}
54 changes: 54 additions & 0 deletions FraudulentBank/Program.cs
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using System;
using System.IO;
using System.Linq;

namespace FraudulentBank
{
public class Program
{
static void Main(string[] args)
{
string fileName = Path.Combine(Directory.GetCurrentDirectory(), "accounts.txt");

Console.WriteLine("Welcome to the Fraudulent Bank application!");

while (true)
{
Console.WriteLine("Please choose an option:");
Console.WriteLine("1. Signup");
Console.WriteLine("2. Login");
Console.WriteLine("3. Exit");

Console.WriteLine("Choice: ");
var choice = Console.ReadLine();

switch (choice)
{
case "1":
UserAccount.Signup(fileName);
break;
case "2":
string accountNumber = UserAccount.Login(fileName);

if (accountNumber != null)
{
LoggedInMenu.ShowMenu(fileName, accountNumber);
}
else
{
Console.WriteLine("Invalid credentials. Please try again.");
}
UserAccount.Login(fileName);
break;
case "3":
Console.WriteLine("Have a nice day");
Environment.Exit(0);
break;
default:
Console.WriteLine("Invalid Option Selection");
break;
}
}
}
}
}
91 changes: 91 additions & 0 deletions FraudulentBank/UserAccount.cs
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using System;
using System.IO;

public class UserAccount
{
public static void Signup(string fileName)
{

Console.WriteLine("Please enter your name:");
var name = Console.ReadLine();

Console.WriteLine("Please enter your email:");
var email = Console.ReadLine();

Console.WriteLine("Please enter your password:");
var password = Console.ReadLine();
if (!string.IsNullOrEmpty(name) || !string.IsNullOrEmpty(email) || !string.IsNullOrEmpty(password))
{
// Generate a unique 10-digit account number starting with 2
Random rand = new Random();
string accountNumber = "2" + rand.Next(100000000, 999999999).ToString();

using (StreamWriter sw = File.AppendText(fileName))
{
sw.WriteLine($"{accountNumber},{name},{email},{password},0");
}
Console.WriteLine("Signup successful!");
Console.WriteLine("Your account number is " + accountNumber);
LoggedInMenu.ShowMenu(fileName, accountNumber);
}
else
{
Console.WriteLine("Invalid details! You have entered a null or empty value. Try again!!!");
}

}
public static string Login(string fileName)
{

Console.WriteLine("Please enter your account number:");
var accountNumber = Console.ReadLine();

Console.WriteLine("Please enter your password:");
Console.Write("Enter password: ");
string password = "";
while (true)
{
ConsoleKeyInfo key = Console.ReadKey(true);
if (key.Key == ConsoleKey.Enter)
{
Console.WriteLine();
break;
}
else if (key.Key == ConsoleKey.Backspace && password.Length > 0)
{
password = password.Substring(0, password.Length - 1);
Console.Write("\b \b");
}
else if (!char.IsControl(key.KeyChar))
{
password += key.KeyChar;
Console.Write("*");
}
}

string[] lines = File.ReadAllLines(fileName);

if (string.IsNullOrWhiteSpace(accountNumber) || string.IsNullOrWhiteSpace(password))
{
Console.WriteLine("Invalid input. Please try again.");
return null;
}
else
{
foreach (string line in lines)
{
string[] fields = line.Split(',');
if (fields[0] == accountNumber && fields[1] == password)
{
Console.WriteLine("Login successful!");
//return accountNumber;
}
}
}
return accountNumber;

//Console.WriteLine("Invalid account number or password. Please try again.");

}
}