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Refactored version 1 #44

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139 changes: 72 additions & 67 deletions Refactoring/Tusc.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,76 +15,45 @@ public static void Start(List<User> usrs, List<Product> prods)
// Write welcome message
Console.WriteLine("Welcome to TUSC");
Console.WriteLine("---------------");
Console.WriteLine();

// Login
// Return to Login when user or password is invalid
Login:
bool loggedIn = false; // Is logged in?

// Prompt for user input
Console.WriteLine();
Console.WriteLine("Enter Username:");
string name = Console.ReadLine();
string userName = PromptForUserInput("Enter Username:");

// Validate Username
bool valUsr = false; // Is valid user?
if (!string.IsNullOrEmpty(name))
if (!string.IsNullOrEmpty(userName))
{
for (int i = 0; i < 5; i++)
{
User user = usrs[i];
// Check that name matches
if (user.Name == name)
{
valUsr = true;
}
}
int totalUsers = usrs.Count();

// if valid user
if (valUsr)
if (IsUserValid(usrs, userName, totalUsers))
{
// Prompt for user input
Console.WriteLine("Enter Password:");
string pwd = Console.ReadLine();
string userPassword = PromptForUserInput("Enter Password:");

// Validate Password
bool valPwd = false; // Is valid password?
for (int i = 0; i < 5; i++)
if (IsPasswordValid(usrs, userName, totalUsers, userPassword))
{
User user = usrs[i];

// Check that name and password match
if (user.Name == name && user.Pwd == pwd)
{
valPwd = true;
}
}

// if valid password
if (valPwd == true)
{
loggedIn = true;

// Show welcome message
Console.Clear();
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine();
Console.WriteLine("Login successful! Welcome " + name + "!");
Console.WriteLine("Login successful! Welcome " + userName + "!");
Console.ResetColor();

// Show remaining balance
double bal = 0;
for (int i = 0; i < 5; i++)
double userBalance = 0;
for (int i = 0; i < totalUsers; i++)
{
User usr = usrs[i];
User user = usrs[i];

// Check that name and password match
if (usr.Name == name && usr.Pwd == pwd)
if (user.Name == userName && user.Pwd == userPassword)
{
bal = usr.Bal;
userBalance = user.Bal;

// Show balance
Console.WriteLine();
Console.WriteLine("Your balance is " + usr.Bal.ToString("C"));
Console.WriteLine("Your balance is " + user.Bal.ToString("C"));
}
}

Expand All @@ -101,23 +70,21 @@ public static void Start(List<User> usrs, List<Product> prods)
}
Console.WriteLine(prods.Count + 1 + ": Exit");

// Prompt for user input
Console.WriteLine("Enter a number:");
string answer = Console.ReadLine();
int num = Convert.ToInt32(answer);
num = num - 1; /* Subtract 1 from number
string answer = PromptForUserInput("Enter a number:");
int productNumber = Convert.ToInt32(answer);
productNumber = productNumber - 1; /* Subtract 1 from number
num = num + 1 // Add 1 to number */

// Check if user entered number that equals product count
if (num == 7)
if (productNumber == 7)
{
// Update balance
foreach (var usr in usrs)
{
// Check that name and password match
if (usr.Name == name && usr.Pwd == pwd)
if (usr.Name == userName && usr.Pwd == userPassword)
{
usr.Bal = bal;
usr.Bal = userBalance;
}
}

Expand All @@ -139,16 +106,15 @@ public static void Start(List<User> usrs, List<Product> prods)
else
{
Console.WriteLine();
Console.WriteLine("You want to buy: " + prods[num].Name);
Console.WriteLine("Your balance is " + bal.ToString("C"));
Console.WriteLine("You want to buy: " + prods[productNumber].Name);
Console.WriteLine("Your balance is " + userBalance.ToString("C"));

// Prompt for user input
Console.WriteLine("Enter amount to purchase:");
answer = Console.ReadLine();
int qty = Convert.ToInt32(answer);
answer = PromptForUserInput("Enter amount to purchase:");
int productQuantity = Convert.ToInt32(answer);

// Check if balance - quantity * price is less than 0
if (bal - prods[num].Price * qty < 0)
if (userBalance - prods[productNumber].Price * productQuantity < 0)
{
Console.Clear();
Console.ForegroundColor = ConsoleColor.Red;
Expand All @@ -159,29 +125,29 @@ public static void Start(List<User> usrs, List<Product> prods)
}

// Check if quantity is less than quantity
if (prods[num].Qty <= qty)
if (prods[productNumber].Qty <= productQuantity)
{
Console.Clear();
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine();
Console.WriteLine("Sorry, " + prods[num].Name + " is out of stock");
Console.WriteLine("Sorry, " + prods[productNumber].Name + " is out of stock");
Console.ResetColor();
continue;
}

// Check if quantity is greater than zero
if (qty > 0)
if (productQuantity > 0)
{
// Balance = Balance - Price * Quantity
bal = bal - prods[num].Price * qty;
userBalance = userBalance - prods[productNumber].Price * productQuantity;

// Quanity = Quantity - Quantity
prods[num].Qty = prods[num].Qty - qty;
prods[productNumber].Qty = prods[productNumber].Qty - productQuantity;

Console.Clear();
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("You bought " + qty + " " + prods[num].Name);
Console.WriteLine("Your new balance is " + bal.ToString("C"));
Console.WriteLine("You bought " + productQuantity + " " + prods[productNumber].Name);
Console.WriteLine("Your new balance is " + userBalance.ToString("C"));
Console.ResetColor();
}
else
Expand Down Expand Up @@ -226,5 +192,44 @@ public static void Start(List<User> usrs, List<Product> prods)
Console.WriteLine("Press Enter key to exit");
Console.ReadLine();
}

private static bool IsPasswordValid(List<User> usrs, string userName, int totalUsers, string userPassword)
{
bool isPasswordValid = false;
for (int i = 0; i < totalUsers; i++)
{
User user = usrs[i];

// Check that name and password match
if (user.Name == userName && user.Pwd == userPassword)
{
isPasswordValid = true;
}
}
return isPasswordValid;
}

private static bool IsUserValid(List<User> usrs, string userName, int totalUsers)
{
bool isUserValid = false;

for (int i = 0; i < totalUsers; i++)
{
User user = usrs[i];
if (user.Name == userName)
{
isUserValid = true;
}
}

return isUserValid;
}

private static string PromptForUserInput(string message)
{
Console.WriteLine(message);
string userInput = Console.ReadLine();
return userInput;
}
}
}