public bool DisplaySaveAccountInfo(Salesperson salesperson, out bool maxAttemptsExceeded)
{
string userResponse;
maxAttemptsExceeded = false;
ConsoleUtil.HeaderText = "Save Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("The current account information.");
DisplayAccountDetail(salesperson);
ConsoleUtil.DisplayMessage("");
userResponse = ConsoleValidator.GetYesNoFromUser(MAXIMUM_ATTEMPTS, "Save the account information?", out maxAttemptsExceeded);
if (maxAttemptsExceeded)
{
ConsoleUtil.DisplayMessage("It appears you are having difficulty. You will return to the main menu.");
return(false);
}
else
{
return(userResponse == "YES" ? true : false);
}
}
/// <summary>
/// display the welcome screen
/// </summary>
public void DisplayWelcomeScreen()
{
StringBuilder sb = new StringBuilder();
ConsoleUtil.HeaderBackgroundColor = ConsoleColor.DarkGray;
ConsoleUtil.HeaderForegroundColor = ConsoleColor.Gray;
Console.Clear();
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Written by Shawn Lewin");
ConsoleUtil.DisplayMessage("Northwestern Michigan College");
ConsoleUtil.DisplayMessage("");
sb.Clear();
sb.AppendFormat("You are a traveling salesperson buying and selling fidgets ");
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 fidgets.");
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 the current account information
/// </summary>
public void DisplayAccountInfo(Salesperson salesperson)
{
ConsoleUtil.HeaderText = "Account Info";
ConsoleUtil.DisplayReset();
DisplayAccountDetail(salesperson);
DisplayContinuePrompt();
}
/// <summary>
/// display a closing screen when the user quits the application
/// </summary>
public void DisplayClosingScreen()
{
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Thank you for using The Traveling Salesperson Application.");
DisplayContinuePrompt();
}
public void DisplayConfirmSaveAccountInfo()
{
ConsoleUtil.HeaderText = "Save Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Account information saved.");
DisplayContinuePrompt();
}
public void DisplayConfirmLoadAccountInfo(Salesperson salesperson)
{
ConsoleUtil.HeaderText = "Load Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Account information loaded.");
DisplayAccountDetail(salesperson);
DisplayContinuePrompt();
}
public void DisplayInventory(Product product)
{
ConsoleUtil.HeaderText = "Current Inventory";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Product type: " + product.Type.ToString());
ConsoleUtil.DisplayMessage("Number of units: " + product.NumberOfUnits.ToString());
ConsoleUtil.DisplayMessage("");
DisplayContinuePrompt();
}
/// <summary>
/// get the next city to travel to from the user
/// </summary>
/// <returns>string City</returns>
public string DisplayGetNextCity()
{
string nextCity = "";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter the name of the next city:");
nextCity = Console.ReadLine();
return(nextCity);
}
/// <summary>
/// load the current account info
/// </summary>
public void DisplayLoadAccountInfo(string displayMessage)
{
//
// set up the console
//
ConsoleUtil.HeaderText = "Loading Account Info";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage(displayMessage);
DisplayContinuePrompt();
}
/// <summary>
/// Displays a notification warning about the amount of products being put on backorder
/// </summary>
/// <param name="product"></param>
/// <param name="numberOfUnitsSold"></param>
public void DisplayBackorderNotification(Product product)
{
//
// set up the console
//
ConsoleUtil.HeaderText = "Backorder Notification";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage($"{-product.NumberOfUnits} {product.Type.ToString()}s have been put on back order");
DisplayContinuePrompt();
}
/// <summary>
/// initialize all console settings
/// </summary>
private void InitializeConsole()
{
ConsoleUtil.WindowTitle = "Traveling Car Salesperson";
ConsoleUtil.HeaderText = "The Traveling Car Salesperson Application";
ConsoleUtil.BodyBackgroundColor = ConsoleColor.White;
ConsoleUtil.BodyForegroundColor = ConsoleColor.Black;
ConsoleUtil.HeaderBackgroundColor = ConsoleColor.Blue;
ConsoleUtil.HeaderForegroundColor = ConsoleColor.White;
ConsoleUtil.WindowHeight = 30;
ConsoleUtil.DisplayReset();
}
/// <summary>
/// display the Exit prompt on a clean screen
/// </summary>
public void DisplayExitPrompt()
{
ConsoleUtil.DisplayReset();
Console.CursorVisible = false;
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Thank you for using the application. Press any key to Exit.");
Console.ReadKey();
System.Environment.Exit(1);
}
/// <summary>
/// display a list of the cities traveled
/// </summary>
public void DisplayCitiesTraveled(Salesperson salesperson)
{
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("You have traveled to the following cities.");
ConsoleUtil.DisplayMessage("");
foreach (string city in salesperson.CitiesVisited)
{
ConsoleUtil.DisplayMessage(city);
}
DisplayContinuePrompt();
}
public void DisplayBackorderNotification(Product product, int numberOfUnitsSold)
{
ConsoleUtil.HeaderText = "Inventory Backorder Notification";
ConsoleUtil.DisplayReset();
int numberOfUnitsBackordered = Math.Abs(product.NumberOfUnits);
int numberOfUnitsShipped = numberOfUnitsSold - numberOfUnitsBackordered;
ConsoleUtil.DisplayMessage("Products Sold: " + numberOfUnitsSold);
ConsoleUtil.DisplayMessage("Products Shipped: " + numberOfUnitsShipped);
ConsoleUtil.DisplayMessage("Products on Backorder: " + numberOfUnitsBackordered);
DisplayContinuePrompt();
}
/// <summary>
/// display the current account information
/// </summary>
public void DisplayAccountInfo(Salesperson salesperson)
{
//
// set up the console
//
ConsoleUtil.HeaderText = "Account Information";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage($"First Name: {ConsoleUtil.UppercaseFirst(salesperson.FirstName)}");
ConsoleUtil.DisplayMessage($"Last Name: {ConsoleUtil.UppercaseFirst(salesperson.LastName)}");
ConsoleUtil.DisplayMessage($"Age: {salesperson.Age}");
ConsoleUtil.DisplayMessage($"Account ID: {salesperson.AccountID}");
ConsoleUtil.DisplayMessage($"Rank: {salesperson.Rank}");
DisplayContinuePrompt();
}
/// <summary>
/// display a list of the cities traveled
/// </summary>
public void DisplayCitiesTraveled(Salesperson salesperson)
{
//
// set up the console
//
ConsoleUtil.HeaderText = "Cities Traveled";
ConsoleUtil.DisplayReset();
//
// go through the list, and display each city
//
foreach (City city in salesperson.CitiesVisited)
{
ConsoleUtil.DisplayMessage(city.Name);
if (city.Departed())
{
ConsoleUtil.DisplayMessage($"Spent {city.DaysSpent()} days");
}
if (city.ProductsBought > 0)
{
ConsoleUtil.DisplayMessage($"Bought {city.ProductsBought} units");
}
if (city.ProductsSold > 0)
{
ConsoleUtil.DisplayMessage($"Sold {city.ProductsSold} units");
}
if (city.CompaniesVisited.Count > 0)
{
ConsoleUtil.DisplayMessage("\nVisited Companies: ");
}
foreach (string company in city.CompaniesVisited)
{
ConsoleUtil.DisplayMessage("\t" + company);
}
Console.WriteLine();
}
DisplayContinuePrompt();
}
/// <summary>
/// Displays the type, amount, and backorder flag of the product passed as an argument
/// </summary>
/// <param name="product"></param>
public void DisplayInventory(Dictionary <Product.ProductType, Product> products)
{
//
// set up console
//
ConsoleUtil.HeaderText = "Current Inventory";
ConsoleUtil.DisplayReset();
//
// display product
//
foreach (var product in products)
{
ConsoleUtil.DisplayMessage($"Product type : {product.Value.Color} {product.Key.ToString()}");
ConsoleUtil.DisplayMessage($"Product model : {product.Value.ModelName} at {product.Value.Price.ToString("C2")}");
ConsoleUtil.DisplayMessage($"Product amount : {product.Value.NumberOfUnits}");
ConsoleUtil.DisplayMessage($"Product is " + (product.Value.OnBackOrder ? "" : "not ") + "on back order");
Console.WriteLine();
}
DisplayContinuePrompt();
}
/// <summary>
/// get the next city to travel to from the user
/// </summary>
/// <returns>string City</returns>
public string DisplayGetNextCity()
{
//
// initialize variables
//
string nextCity = "";
//
// set up the console
//
ConsoleUtil.HeaderText = "Input City";
ConsoleUtil.DisplayReset();
//
// get user input
//
ConsoleUtil.DisplayPromptMessage("City:");
nextCity = Console.ReadLine();
DisplayContinuePrompt();
return(nextCity);
}
/// <summary>
/// Gets a company name from the user
/// </summary>
/// <param name="product"></param>
/// <returns></returns>
public string DisplayGetCompanyVisited()
{
//
// initialize variable
//
string companyName;
//
// set up the console
//
ConsoleUtil.HeaderText = "Visiting Company";
ConsoleUtil.DisplayReset();
//
// get the company name
//
ConsoleUtil.DisplayPromptMessage("What company did you visit? ");
companyName = Console.ReadLine();
DisplayContinuePrompt();
return(companyName);
}
public int DisplayGetNumberOfUnitsToSell(Product product)
{
ConsoleUtil.HeaderText = "Sell Inventory";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Selling " + product.Type.ToString() + " products.");
ConsoleUtil.DisplayMessage("");
if (!ConsoleValidator.TryGetIntegerFromUser(MINIMUM_BUYSELL_AMOUNT, MAXIMUM_BUYSELL_AMOUNT, MAXIMUM_ATTEMPTS, "products", out int numberOfUnitsToSell))
{
ConsoleUtil.DisplayMessage("It appears you are having difficulty setting the number of products to sell.");
ConsoleUtil.DisplayMessage("By default, the number of products to sell will be set to zero.");
numberOfUnitsToSell = 0;
DisplayContinuePrompt();
}
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage(numberOfUnitsToSell + " " + product.Type.ToString() + " products have been subtracted from the inventory.");
DisplayContinuePrompt();
return(numberOfUnitsToSell);
}
/// <summary>
/// display the welcome screen
/// </summary>
public void DisplayWelcomeScreen()
{
StringBuilder sb = new StringBuilder();
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Written by Nathaniel Carson");
ConsoleUtil.DisplayMessage("Northwestern Michigan College");
ConsoleUtil.DisplayMessage("");
sb.Clear();
sb.AppendFormat("You are a traveling car salesperson. ");
sb.AppendFormat("You travel around the country looking for cars to flip and ");
sb.AppendFormat("people to buy them. ");
sb.AppendFormat("This application will help facilitate tracking your sales and purchases. ");
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>
/// 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 enterCancelsOut = false)
{
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();
if (enterCancelsOut && userResponse == "")
{
return(false);
}
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();
}
ConsoleUtil.DisplayReset();
}
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()
{
//
// initialize variables
//
bool validResponse;
int userAge;
int productAmount;
Product.ProductType productType;
Salesperson salesperson = new Salesperson();
//
// set up the console
//
ConsoleUtil.HeaderText = "Account Setup";
ConsoleUtil.DisplayReset();
//
// get new account info
//
ConsoleUtil.DisplayPromptMessage("First name: ");
salesperson.FirstName = Console.ReadLine();
Console.WriteLine("");
ConsoleUtil.DisplayPromptMessage("Last name: ");
salesperson.LastName = Console.ReadLine();
Console.WriteLine("");
ConsoleUtil.DisplayMessage("Age");
validResponse = ConsoleValidator.TryGetIntegerFromUser(10, 90, MAXIMUM_ATTEMPTS, "years old", out userAge);
if (validResponse)
{
salesperson.Age = userAge;
}
ConsoleUtil.DisplayPromptMessage("Account ID: ");
salesperson.AccountID = Console.ReadLine();
Console.WriteLine("");
//
// validate user input
//
ConsoleUtil.DisplayMessage("Setting up inventory..");
ConsoleUtil.DisplayMessage("");
if (!ConsoleValidator.GetEnumValueFromUser <Product.ProductType>(MAXIMUM_ATTEMPTS, "Body Style:", out productType))
{
ConsoleUtil.DisplayMessage("Maximum attempts exceeded, returning to main menu.");
}
if (!ConsoleValidator.TryGetIntegerFromUser(MINIMUM_BUYSELL_AMOUNT, MAXIMUM_BUYSELL_AMOUNT, MAXIMUM_ATTEMPTS, $"{productType.ToString()}s", out productAmount))
{
ConsoleUtil.DisplayMessage("Max attempts exceeded, returning to main menu with default value of 0 vehicles.");
}
//
// set salesman product object
//
salesperson.CurrentStock[productType].NumberOfUnits = productAmount;
salesperson.Rank = Salesperson.Ranks.Beginner;
DisplayContinuePrompt();
return(salesperson);
}
/// <summary>
/// get the menu choice from the user
/// </summary>
public MenuOption DisplayGetUserMenuChoice()
{
MenuOption userMenuChoice = MenuOption.None;
bool usingMenu = true;
while (usingMenu)
{
//
// set up display area
//
ConsoleUtil.HeaderText = "Main Menu";
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. Travel" + Environment.NewLine +
"\t" + "3. Buy" + Environment.NewLine +
"\t" + "4. Sell" + Environment.NewLine +
"\t" + "5. Display Inventory" + Environment.NewLine +
"\t" + "6. Display Cities" + Environment.NewLine +
"\t" + "7. Display Account Info" + Environment.NewLine +
"\t" + "8. Edit Account Info" + Environment.NewLine +
"\t" + "9. Visit Company" + Environment.NewLine +
"\t" + "Q. Save Account Info" + Environment.NewLine +
"\t" + "W. 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.Travel;
usingMenu = false;
break;
case '3':
userMenuChoice = MenuOption.Buy;
usingMenu = false;
break;
case '4':
userMenuChoice = MenuOption.Sell;
usingMenu = false;
break;
case '5':
userMenuChoice = MenuOption.DisplayInventory;
usingMenu = false;
break;
case '6':
userMenuChoice = MenuOption.DisplayCities;
usingMenu = false;
break;
case '7':
userMenuChoice = MenuOption.DisplayAccountInfo;
usingMenu = false;
break;
case '8':
userMenuChoice = MenuOption.EditAccountInfo;
usingMenu = false;
break;
case '9':
userMenuChoice = MenuOption.VisitCompany;
usingMenu = false;
break;
case 'q':
userMenuChoice = MenuOption.SaveAccountInfo;
usingMenu = false;
break;
case 'w':
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 E key to quit the application.");
userResponse = Console.ReadKey(true);
if (userResponse.Key == ConsoleKey.Escape)
{
usingMenu = false;
}
break;
}
}
Console.CursorVisible = true;
return(userMenuChoice);
}
/// <summary>
/// Edits the salesperson's account information
/// </summary>
/// <param name="salesperson"></param>
public void DisplayEditAccountInfo(Salesperson salesperson)
{
bool validResponse = false;
int userAge = 0;
string userResponse;
Salesperson.Ranks rank;
//
// set up the console
//
ConsoleUtil.HeaderText = "Account Editing";
ConsoleUtil.DisplayReset();
//
// get new account info
//
ConsoleUtil.DisplayMessage("Just press enter if you wish to skip the current field");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage($"First Name: {salesperson.FirstName}");
userResponse = Console.ReadLine();
if (userResponse != "")
{
salesperson.FirstName = userResponse;
}
Console.WriteLine("");
ConsoleUtil.DisplayMessage($"Last Name: {salesperson.LastName}");
userResponse = Console.ReadLine();
if (userResponse != "")
{
salesperson.LastName = userResponse;
}
Console.WriteLine("");
ConsoleUtil.DisplayMessage($"Age: {salesperson.Age}");
validResponse = ConsoleValidator.TryGetIntegerFromUser(10, 90, MAXIMUM_ATTEMPTS, "years old", out userAge, true);
if (validResponse)
{
salesperson.Age = userAge;
}
ConsoleUtil.DisplayMessage($"Account ID: {salesperson.AccountID}");
if (userResponse != "")
{
salesperson.AccountID = userResponse;
}
Console.WriteLine("");
ConsoleUtil.DisplayMessage($"Rank: {salesperson.Rank}");
if (ConsoleValidator.GetEnumValueFromUser <Salesperson.Ranks>(MAXIMUM_ATTEMPTS, "Rank:", out rank, true))
{
salesperson.Rank = rank;
}
DisplayContinuePrompt();
}
/// <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.DisplayPromptMessage("Product Types: ");
ConsoleUtil.DisplayMessage("");
foreach (string productTypeName in Enum.GetNames(typeof(ProductType)))
{
if (productTypeName != ProductType.None.ToString())
{
ConsoleUtil.DisplayMessage(productTypeName);
}
}
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter the product type: ");
ProductType productType;
if (Enum.TryParse <ProductType>(UppercaseFirst(Console.ReadLine()), out productType))
{
salesperson.CurrentStock.Type = productType;
}
else
{
salesperson.CurrentStock.Type = ProductType.None;
}
if (ConsoleValidator.TryGetIntegerFromUser(0, 100, 3, "products", out int 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.DisplayReset();
ConsoleUtil.DisplayMessage("Your account is setup");
DisplayContinuePrompt();
return(salesperson);
}
