public bool DisplayLoadAccountInfo(Salesperson _salesperson, out bool maxAttemptsExceeded)
{
maxAttemptsExceeded = false;
string userResponse;
ConsoleUtil.HeaderText = "Load Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("");
userResponse = ConsoleValidator.GetYesNoFromUser(maxAttempts, "Load account info?", out maxAttemptsExceeded);
if (maxAttemptsExceeded)
{
ConsoleUtil.DisplayMessage("It appears you are having difficult, we will return you" +
"to the main menu");
}
else
{
return(userResponse == "yes" ? true : false);
}
return(maxAttemptsExceeded);
}
/// <summary>
/// prompts the user to load account and travel log infor
/// </summary>
/// <param name="maxAttemptsExceeded"></param>
/// <returns></returns>
public bool DisplayLoadAccountInfo(out bool maxAttemptsExceeded)
{
string userResponse;
maxAttemptsExceeded = false;
ConsoleUtil.HeaderText = "Load Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("");
userResponse = ConsoleValidator.GetYesNoFromUser(MAXIMUM_ATTEMPTS, "Load the account information?", out maxAttemptsExceeded);
if (maxAttemptsExceeded)
{
ConsoleUtil.DisplayMessage("It appears you are having difficulties. You will return to the main menu.");
return(false);
}
else
{
// note use of ternary operator (takes three arguments)
return(userResponse == "YES" ? true : false);
}
}
/// <summary>
/// display the welcome screen
/// </summary>
public void DisplayWelcomeScreen()
{
StringBuilder sb = new StringBuilder();
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Written by Tyler Kirschke");
ConsoleUtil.DisplayMessage("Northwestern Michigan College");
ConsoleUtil.DisplayMessage("");
sb.Clear();
sb.AppendFormat("You are a traveling salesperson buying and selling widgets ");
sb.AppendFormat("around the country. You will be prompted regarding which city ");
sb.AppendFormat("you wish to travel to and will then be asked whether you wish to buy ");
sb.AppendFormat("or sell widgets.");
ConsoleUtil.DisplayMessage(sb.ToString());
ConsoleUtil.DisplayMessage("");
sb.Clear();
sb.AppendFormat("Your first task will be to set up your account details.");
ConsoleUtil.DisplayMessage(sb.ToString());
DisplayContinuePrompt();
}
/// <summary>
/// display current account details w/out continue prompt
/// </summary>
/// <param name="salesperson"></param>
public void DisplayAccountDetails(Salesperson salesperson)
{
ConsoleUtil.DisplayMessage("First Name: " + salesperson.FirstName);
ConsoleUtil.DisplayMessage("Last Name: " + salesperson.LastName);
ConsoleUtil.DisplayMessage("Account ID: " + salesperson.AccountID);
ConsoleUtil.DisplayMessage("Product Type: " + salesperson.Inventory.Type);
ConsoleUtil.DisplayMessage("Current Inventory: " + salesperson.Inventory.NumberOfUnits);
ConsoleUtil.DisplayMessage("Age:" + salesperson.Age);
ConsoleUtil.DisplayMessage("Cities traveled:");
foreach (string city in salesperson.CitiesVisited)
{
ConsoleUtil.DisplayMessage(city);
}
if (salesperson.IsHockeyFan)
{
ConsoleUtil.DisplayMessage("Is a hockey fan, NICE.");
}
else
{
ConsoleUtil.DisplayMessage("Is not a hockey fan, LAME.");
}
}
/// <summary>
/// display backorder notification
/// </summary>
/// <param name="_salesperson"></param>
/// <param name="Inventory"></param>
public void DisplayBackOrderNotification(Salesperson _salesperson, int Inventory)
{
ConsoleUtil.DisplayMessage($"You have {Math.Abs(Inventory)} units on backorder. You should buy more.");
ConsoleUtil.DisplayMessage("");
}
/// <summary>
/// get the menu choice from the user
/// </summary>
public MenuOption DisplayGetUserMenuChoice()
{
MenuOption userMenuChoice = MenuOption.None;
bool usingMenu = true;
ConsoleUtil.HeaderText = "Main Menu";
ConsoleUtil.DisplayReset();
while (usingMenu)
{
//
// set up display area
//
ConsoleUtil.DisplayReset();
Console.CursorVisible = false;
//
// display the menu
//
ConsoleUtil.DisplayMessage("Please type the number of your menu choice.");
ConsoleUtil.DisplayMessage("");
Console.Write(
"\t" + "1. Setup Account" + Environment.NewLine +
"\t" + "2. Update Account Info" + Environment.NewLine +
"\t" + "3. Travel" + Environment.NewLine +
"\t" + "4. Display Cities" + Environment.NewLine +
"\t" + "5. Display Account Info" + Environment.NewLine +
"\t" + "6. Buy" + Environment.NewLine +
"\t" + "7. Sell" + Environment.NewLine +
"\t" + "8. Display Inventory" + Environment.NewLine +
"\t" + "9. Save Account Info" + Environment.NewLine +
"\t" + "0. Load Account Info" + Environment.NewLine +
"\t" + "E. Exit" + Environment.NewLine);
//
// get and process the user's response
// note: ReadKey argument set to "true" disables the echoing of the key press
//
ConsoleKeyInfo userResponse = Console.ReadKey(true);
switch (userResponse.KeyChar)
{
case '1':
userMenuChoice = MenuOption.SetupAccount;
usingMenu = false;
break;
case '2':
userMenuChoice = MenuOption.UpdateAccountInfo;
usingMenu = false;
break;
case '3':
userMenuChoice = MenuOption.Travel;
usingMenu = false;
break;
case '4':
userMenuChoice = MenuOption.DisplayCities;
usingMenu = false;
break;
case '5':
userMenuChoice = MenuOption.DisplayAccountInfo;
usingMenu = false;
break;
case '6':
userMenuChoice = MenuOption.Buy;
usingMenu = false;
break;
case '7':
userMenuChoice = MenuOption.Sell;
usingMenu = false;
break;
case '8':
userMenuChoice = MenuOption.DisplayInventory;
usingMenu = false;
break;
case '9':
userMenuChoice = MenuOption.SaveAccountInfo;
usingMenu = false;
break;
case '0':
userMenuChoice = MenuOption.LoadAccountInfo;
usingMenu = false;
break;
case 'E':
case 'e':
userMenuChoice = MenuOption.Exit;
usingMenu = false;
break;
default:
ConsoleUtil.DisplayMessage(
"It appears you have selected an incorrect choice." + Environment.NewLine +
"Press any key to continue or the ESC key to quit the application.");
userResponse = Console.ReadKey(true);
if (userResponse.Key == ConsoleKey.Escape)
{
usingMenu = false;
}
break;
}
}
Console.CursorVisible = true;
return(userMenuChoice);
}
/// <summary>
/// setup the new salesperson object with the initial data
/// Note: To maintain the pattern of only the Controller changing the data this method should
/// return a Salesperson object with the initial data to the controller. For simplicity in
/// this demo, the ConsoleView object is allowed to access the Salesperson object's properties.
/// </summary>
public Salesperson DisplaySetupAccount()
{
Salesperson _salesperson = new Salesperson();
ConsoleUtil.HeaderText = "Account Setup";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("First Name: ");
_salesperson.FirstName = UppercaseFirst(Console.ReadLine());
ConsoleUtil.DisplayPromptMessage("Last Name: ");
_salesperson.LastName = UppercaseFirst(Console.ReadLine());
ConsoleUtil.DisplayPromptMessage("Account ID: ");
_salesperson.AccountID = Console.ReadLine();
if (!ConsoleValidator.TryGetIntegerFromUser(18, 100, 3, "Age", out int userInteger))
{
Console.WriteLine("Looks like you are having trouble with your age. Clearly you are old as dirt, setting age to 100.");
_salesperson.Age = 100;
}
_salesperson.Age = userInteger;
string userResponse = ConsoleValidator.GetYesNoFromUser(3, "Are you a hockey fan?", out bool maxAttemptsExceeded);
if (maxAttemptsExceeded)
{
Console.WriteLine("Not valid answer. You must not be a hockey fan.");
}
if (userResponse == "yes")
{
_salesperson.IsHockeyFan = true;
}
else
{
_salesperson.IsHockeyFan = false;
}
ConsoleUtil.DisplayMessage("Product Types");
ConsoleUtil.DisplayMessage("");
//
// list all product types
//
foreach (string productTypeName in Enum.GetNames(typeof(Product.ProductType)))
{
//
// do not display the "NONE" enum value
//
if (productTypeName != Product.ProductType.None.ToString())
{
ConsoleUtil.DisplayMessage(productTypeName);
}
}
//
// get product type, if invalid entry, set type to "None"
//
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter the product type: ");
Product.ProductType productType;
if (Enum.TryParse <Product.ProductType>(UppercaseFirst(Console.ReadLine()), out productType))
{
_salesperson.Inventory.Type = productType;
}
else
{
_salesperson.Inventory.Type = Product.ProductType.None;
}
if (ConsoleValidator.TryGetIntegerFromUser(0, 100, 3, "units", out int numberOfUnits))
{
_salesperson.Inventory.AddProducts(numberOfUnits);
}
else
{
ConsoleUtil.DisplayMessage("You did not enter a valid number of units.");
ConsoleUtil.DisplayMessage("We will set your intentory to 0");
}
_salesperson.Inventory.NumberOfUnits = numberOfUnits;
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Your account is now setup");
return(_salesperson);
}
/// <summary>
/// helper method to get a valid integer from the user within a range
/// </summary>
/// <param name="minValue">inclusive minimum value</param>
/// <param name="maxValue">inclusive maximum value</param>
/// <param name="maxAttempts">maximum number of attempts</param>
/// <param name="pluralName">plural name of item</param>
/// <param name="validInput">indicates valid user input</param>
/// <returns></returns>
public static bool TryGetIntegerFromUser(int minValue, int maxValue, int maxAttempts, string pluralName, out int userInteger)
{
bool validInput = false;
bool maxAttemptsExceeded = false;
string userResponse;
string feedbackMessage = "";
int attempts = 1;
userInteger = 0;
while (!validInput && !maxAttemptsExceeded)
{
//
// more attempts available
//
if (attempts <= maxAttempts)
{
ConsoleUtil.DisplayPromptMessage($"Enter the number, between {minValue} and {maxValue}, of {pluralName}:");
userResponse = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
//
// input is an Integer
//
if (int.TryParse(userResponse, out userInteger))
{
//
// input is in range
//
if (userInteger >= minValue && userInteger <= maxValue)
{
validInput = true;
}
//
// input is not in range
//
else
{
feedbackMessage = $"The number {userInteger} is not in the specified range.";
}
}
//
// input is not an Integer
//
else
{
feedbackMessage = $"{userResponse} is not an integer.";
}
if (!validInput && attempts <= maxAttempts)
{
ConsoleUtil.DisplayMessage($"You entered: {userResponse}");
ConsoleUtil.DisplayMessage(feedbackMessage);
if (attempts < maxAttempts)
{
ConsoleUtil.DisplayMessage($"Please enter an integer between {minValue} and {maxValue}.");
ConsoleUtil.DisplayMessage("Press any key to try again.");
Console.ReadKey();
}
else
{
ConsoleUtil.DisplayMessage("It appears you have exceeded the maximum number of attempts allowed.");
ConsoleUtil.DisplayMessage("Press any key to continue.");
Console.ReadKey();
}
Console.Clear();
}
else
{
ConsoleUtil.DisplayMessage("");
}
attempts++;
}
else
{
maxAttemptsExceeded = true;
}
}
return(validInput);
}
/// <summary>
/// setup the new salesperson object with the initial data
/// Note: To maintain the pattern of only the Controller changing the data this method should
/// return a Salesperson object with the initial data to the controller. For simplicity in
/// this demo, the ConsoleView object is allowed to access the Salesperson object's properties.
/// </summary>
public Salesperson DisplaySetupAccount()
{
Salesperson salesperson = new Salesperson();
ConsoleUtil.HeaderText = "Account Setup";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Setup your account now.");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your first name: ");
salesperson.FirstName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your last name: ");
salesperson.LastName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your account ID: ");
salesperson.AccountID = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Product Types");
ConsoleUtil.DisplayMessage("");
//
// list all product types
//
foreach (string productTypeName in Enum.GetNames(typeof(Product.ProductType)))
{
//
// do not display the "NONE" enum value
//
if (productTypeName != Product.ProductType.None.ToString())
{
ConsoleUtil.DisplayMessage(productTypeName);
}
}
//
// get product type, if invalid entry, set type to "None"
//
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter the product type: ");
Product.ProductType productType;
if (Enum.TryParse <Product.ProductType>(UppercaseFirst(Console.ReadLine()), out productType))
{
salesperson.CurrentStock.Type = productType;
}
else
{
salesperson.CurrentStock.Type = Product.ProductType.None;
}
int numberOfUnits;
//
// get number of products in inventory
//
if (ConsoleValidator.TryGetIntegerFromUser(0, 100, 3, "products", out numberOfUnits))
{
salesperson.CurrentStock.AddProducts(numberOfUnits);
}
else
{
ConsoleUtil.DisplayMessage("It appears you are having difficulty setting the number of products in your stock.");
ConsoleUtil.DisplayMessage("By default, the number of products in your inventory are now set to zero.");
salesperson.CurrentStock.AddProducts(0);
DisplayContinuePrompt();
}
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Your account is setup");
DisplayContinuePrompt();
return(salesperson);
}
private void DisplayAccountDetail(Salesperson salesperson)
{
ConsoleUtil.DisplayMessage("First Name: " + salesperson.FirstName);
ConsoleUtil.DisplayMessage("Last Name: " + salesperson.LastName);
ConsoleUtil.DisplayMessage("Account ID: " + salesperson.AccountID);
}
/// <summary>
/// setup the new salesperson object with the initial data
/// Note: To maintain the pattern of only the Controller changing the data this method should
/// return a Salesperson object with the initial data to the controller. For simplicity in
/// this demo, the ConsoleView object is allowed to access the Salesperson object's properties.
/// </summary>
public Salesperson DisplaySetupAccount()
{
Salesperson salesperson = new Salesperson();
ConsoleUtil.HeaderText = "Account Setup";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Setup your account now.");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your first name: ");
salesperson.FirstName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your last name: ");
salesperson.LastName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your account ID: ");
salesperson.AccountID = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Product Types: ");
ConsoleUtil.DisplayMessage("");
// list all types of products available
// Enum.GetNames retrieves an array of the names in ProductType
foreach (string productName in Enum.GetNames(typeof(Product.ProductType)))
{
// do not display "None" product type
if (productName != "None")
{
ConsoleUtil.DisplayMessage(productName);
}
}
// get product type from user, if input is invalid: product type will be set to "None"
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter product: ");
// new variable for product type
//Product.ProductType productType;
if (Enum.TryParse <Product.ProductType>(UppercaseFirst(Console.ReadLine()), out Product.ProductType productType))
{
// set type of current stock to selected product type
salesperson.CurrentStock.Type = productType;
}
else
{
// sets type of current stock to "none" product type
salesperson.CurrentStock.Type = Product.ProductType.None;
}
// get number of products
if (ConsoleValidator.TryGetIntegerFromUser(MINIMUM_BUYSELL_AMOUNT, MAXIMUM_BUYSELL_AMOUNT, MAXIMUM_ATTEMPTS, "products", out int numberOfUnits))
{
// add products to current stock
salesperson.CurrentStock.AddProducts(numberOfUnits);
}
else
{
ConsoleUtil.DisplayMessage("It appears you are having difficulty setting the number of products in your stock.");
ConsoleUtil.DisplayMessage("By default, the number of products in your inventory are now set to 0.");
salesperson.CurrentStock.AddProducts(0);
DisplayContinuePrompt();
}
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Your account is setup");
ConsoleUtil.DisplayMessage(numberOfUnits + " units of " + productType + " have been added to your inventory.");
DisplayContinuePrompt();
return(salesperson);
}
public MenuOption DisplayGetUserMenuChoice()
{
MenuOption userMenuChoice = MenuOption.None;
bool usingMenu = true;
while (usingMenu)
{
ConsoleUtil.DisplayReset();
Console.CursorVisible = false;
ConsoleUtil.DisplayMessage("Please type the number of your menu choice.");
ConsoleUtil.DisplayMessage("");
Console.Write(
"\t" + "1. Travel" + Environment.NewLine +
"\t" + "2. Buy" + Environment.NewLine +
"\t" + "3. Sell" + Environment.NewLine +
"\t" + "4. Display Inventory" + Environment.NewLine +
"\t" + "5. Display Cities" + Environment.NewLine +
"\t" + "6. Display Account Info" + Environment.NewLine +
"\t" + "E. Exit" + Environment.NewLine);
ConsoleKeyInfo userResponse = Console.ReadKey(true);
switch (userResponse.KeyChar)
{
case '1':
userMenuChoice = MenuOption.Travel;
usingMenu = false;
break;
case '2':
userMenuChoice = MenuOption.Buy;
usingMenu = false;
break;
case '3':
userMenuChoice = MenuOption.Sell;
usingMenu = false;
break;
case '4':
userMenuChoice = MenuOption.DisplayInventory;
usingMenu = false;
break;
case '5':
userMenuChoice = MenuOption.DisplayCities;
usingMenu = false;
break;
case '6':
userMenuChoice = MenuOption.DisplayAccountInfo;
usingMenu = false;
break;
case 'E':
case 'e':
userMenuChoice = MenuOption.Exit;
usingMenu = false;
break;
default:
ConsoleUtil.DisplayMessage(
"It appears you have selected an incorrect choice." + Environment.NewLine +
"Press any key to continue or the ESC key to quit the application.");
userResponse = Console.ReadKey(true);
if (userResponse.Key == ConsoleKey.Escape)
{
usingMenu = false;
}
break;
}
}
Console.CursorVisible = true;
return(userMenuChoice);
}
// Display Account Edit screen
public MenuOption DisplayGetAccountInfoToEdit()
{
MenuOption userMenuChoice = MenuOption.None;
bool usingMenu = true;
while (usingMenu)
{
//
// set up display area
//
ConsoleUtil.HeaderText = "Edit Account";
ConsoleUtil.DisplayReset();
Console.CursorVisible = false;
//
// display the menu
//
ConsoleUtil.DisplayMessage("Please type the number of the account info you would like to edit:");
ConsoleUtil.DisplayMessage("");
Console.Write(
"\t" + "1. First Name" + Environment.NewLine +
"\t" + "2. Last Name" + Environment.NewLine +
"\t" + "3. Account ID" + Environment.NewLine +
"\t" + "4. Age" + Environment.NewLine +
"\t" + "5. Gender" + Environment.NewLine +
"\t" + "E. Exit" + Environment.NewLine);
//
// get and process the user's response
// note: ReadKey argument set to "true" disables the echoing of the key press
//
ConsoleKeyInfo userResponse = Console.ReadKey(true);
switch (userResponse.KeyChar)
{
case '1':
userMenuChoice = MenuOption.EditFirstName;
usingMenu = false;
break;
case '2':
userMenuChoice = MenuOption.EditLastName;
usingMenu = false;
break;
case '3':
userMenuChoice = MenuOption.EditAccountId;
usingMenu = false;
break;
case '4':
userMenuChoice = MenuOption.EditAge;
usingMenu = false;
break;
case '5':
userMenuChoice = MenuOption.EditGender;
usingMenu = false;
break;
case 'E':
case 'e':
usingMenu = false;
break;
default:
ConsoleUtil.DisplayMessage(
"It appears you have selected an incorrect choice." + Environment.NewLine +
"Press any key to continue or the ESC key to quit the application.");
userResponse = Console.ReadKey(true);
if (userResponse.Key == ConsoleKey.Escape)
{
usingMenu = false;
}
break;
}
}
Console.CursorVisible = true;
return(userMenuChoice);
}
