/// <summary>
/// helper method to get a valid positive integer from the user
/// </summary>
/// <param name="maxAttempts">maximum number of attempts</param>
/// <param name="userPrompt">user prompt</param>
/// <param name="validInput">indicates valid user input</param>
/// <returns></returns>
public static string GetYesNoFromUser(int maxAttempts, string userPrompt, out bool maxAttemptsExceeded)
{
bool validInput = false;
maxAttemptsExceeded = false;
string userResponse = "";
int attempts = 1;
while (!validInput && !maxAttemptsExceeded)
{
ConsoleUtil.DisplayPromptMessage($"{userPrompt} [Yes / No] ");
userResponse = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
//
// input is valid
//
if (userResponse.ToUpper() == "YES" || userResponse.ToUpper() == "NO")
{
validInput = true;
}
//
// input is invalid, but more attempts available
//
else
{
ConsoleUtil.DisplayMessage($"You entered: {userResponse}");
ConsoleUtil.DisplayMessage($"\"{userResponse}\" is not a valid response.");
//
// more attempts available
//
if (attempts < maxAttempts)
{
ConsoleUtil.DisplayMessage($"Please enter either \"Yes\" or \"No\".");
ConsoleUtil.DisplayMessage("Press any key to try again.");
}
//
// all attempts used
//
else
{
ConsoleUtil.DisplayMessage("It appears you have exceeded the maximum number of attempts allowed.");
ConsoleUtil.DisplayMessage("Press any key to continue.");
maxAttemptsExceeded = true;
}
Console.ReadKey();
Console.Clear();
}
attempts++;
}
return(userResponse);
}
/// <summary>
/// get the next city to travel to from the user
/// </summary>
/// <returns>string City</returns>
public string DisplayGetNextCity()
{
string nextCity = "";
ConsoleUtil.HeaderText = "Travel";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter the name of the next city:");
nextCity = Console.ReadLine();
return(nextCity);
}
/// <summary>
/// displays the current inventory
/// </summary>
public void DisplayInventory(Salesperson salesperson, Product units)
{
ConsoleUtil.HeaderText = "Current Inventory";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Products:");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage($"\t- {salesperson.CurrentStock.Type}, # of units: {units.NumberOfUnits.ToString()}");
ConsoleUtil.DisplayMessage("");
DisplayContinuePrompt();
}
/// <summary>
/// allows the user to update their account information
/// </summary>
public Salesperson DisplayUpdateAcountInfo(Salesperson salesperson, out bool maxAttemptsExceeded)
{
string userResponse;
bool editingAccount = true;
maxAttemptsExceeded = false;
ConsoleUtil.HeaderText = "Update Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage(" NOTE: You cannot change the number units here. Use the Buy/Sell options \nfrom the main menu to do that.");
DisplayContinuePrompt();
while (editingAccount)
{
ConsoleUtil.HeaderText = "Update Account";
ConsoleUtil.DisplayReset();
//
// displays current account info wihtout cities and number of units
//
#region Current Account Info
ConsoleUtil.DisplayMessage("Current account info:");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("First Name: " + salesperson.FirstName);
ConsoleUtil.DisplayMessage("Last Name: " + salesperson.LastName);
ConsoleUtil.DisplayMessage("Account ID: " + salesperson.AccountID);
ConsoleUtil.DisplayMessage("Starting City: " + salesperson.StartingCity);
ConsoleUtil.DisplayMessage("Product Type: " + salesperson.CurrentStock.Type);
#endregion
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Please select a corresonding number to change that part of your account.");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("1)First Name | 2)Last Name | 3)Account ID | 4)Starting City | 5)Product");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter your choice here: ");
userResponse = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
//
// get a valid answer form user
//
while (userResponse != "1" && userResponse != "2" && userResponse != "3" && userResponse != "4" && userResponse != "5")
{
ConsoleUtil.HeaderText = "Invalid Input";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("1)First Name | 2)Last Name | 3)Account ID | 4)Starting City | 5)Product");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Please enter a correct corresponding number: ");
userResponse = Console.ReadLine();
if (userResponse == "1" && userResponse == "2" && userResponse == "3" && userResponse == "4" && userResponse == "5")
{
break;
}
}
//
// edit account info
//
switch (userResponse)
{
case "1":
ConsoleUtil.HeaderText = "Update First Name";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter your new first name: ");
salesperson.FirstName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
break;
case "2":
ConsoleUtil.HeaderText = "Update Last Name";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter your new last name: ");
salesperson.LastName = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
break;
case "3":
ConsoleUtil.HeaderText = "Update Account ID";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter your new Account ID: ");
salesperson.AccountID = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
break;
case "4":
ConsoleUtil.HeaderText = "Update Starting City";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayPromptMessage("Enter your new starting city: ");
salesperson.StartingCity = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
break;
case "5":
ConsoleUtil.HeaderText = "Update Product Type";
ConsoleUtil.DisplayReset();
Product.ProductType productType;
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter you new product selection: ");
//
// get new product type from user
//
if (Enum.TryParse <Product.ProductType>(UppercaseFirst(Console.ReadLine()), out productType))
{
salesperson.CurrentStock.Type = productType;
}
else
{
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Seems like you entered an invalid product type.");
ConsoleUtil.DisplayMessage("By default, your product type has been set to None.");
salesperson.CurrentStock.Type = Product.ProductType.None;
DisplayContinuePrompt();
}
break;
default:
break;
}
ConsoleUtil.HeaderText = "Update Account";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Your account has been updated!");
ConsoleUtil.DisplayMessage("");
userResponse = ConsoleValidator.GetYesNoFromUser(MAXIMUM_ATTEMPTS, "\tWould you like to make more changes or continue on?", out maxAttemptsExceeded);
if (maxAttemptsExceeded)
{
ConsoleUtil.DisplayMessage("Max attempts exceeded! You will now be returned to the main menu.");
return(salesperson);
}
else if (userResponse.ToUpper() == "YES")
{
editingAccount = true;
}
else
{
editingAccount = false;
return(salesperson);
}
}
return(salesperson);
}
/// <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();
Product.ProductType productType;
int numberOfUnits;
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("Enter your Starting City: ");
salesperson.StartingCity = Console.ReadLine();
ConsoleUtil.DisplayMessage("");
ConsoleUtil.HeaderText = "Account Setup";
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Please select which type of product you want to work with from below.");
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayMessage("Product Types:");
ConsoleUtil.DisplayMessage("");
Console.Write(
"\t- Gilded" + Environment.NewLine +
"\t- Spiked" + Environment.NewLine +
"\t- Colorful" + Environment.NewLine +
"\t- Vintage" + Environment.NewLine +
"\t- Striped" + Environment.NewLine +
"\t- Used" + Environment.NewLine);
ConsoleUtil.DisplayMessage("");
ConsoleUtil.DisplayPromptMessage("Enter product selection: ");
//
// get product type from user
//
if (Enum.TryParse <Product.ProductType>(UppercaseFirst(Console.ReadLine()), out productType))
{
salesperson.CurrentStock.Type = productType;
}
else
{
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Seems like you entered an invalid product type.");
ConsoleUtil.DisplayMessage("By default, your product type has been set to None.");
salesperson.CurrentStock.Type = Product.ProductType.None;
DisplayContinuePrompt();
}
//
// get number of products in inventory
//
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage($"You have selected {productType} as your product type.");
if (ConsoleValidator.TryGetIntegerFromUser(MINIMUM_BUYSELL_AMOUNT, MAXIMUM_BUYSELL_AMOUNT, MAXIMUM_ATTEMPTS, $"{productType} products to add to your inventory", out numberOfUnits))
{
ConsoleUtil.DisplayReset();
salesperson.CurrentStock.AddProducts(numberOfUnits);
ConsoleUtil.DisplayMessage($"Thank you! {numberOfUnits} {productType} products are now in your inventory!");
DisplayContinuePrompt();
}
else
{
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Maximum attempts exceeded!");
ConsoleUtil.DisplayMessage($"By default, the number of {productType} products in your inventory are now set to zero.");
salesperson.CurrentStock.AddProducts(0);
DisplayContinuePrompt();
}
ConsoleUtil.DisplayReset();
ConsoleUtil.DisplayMessage("Your account is now setup!");
DisplayContinuePrompt();
return(salesperson);
}
/// <summary>
/// helper method to get a valid integer from the user within a range
/// </summary>
/// <param name="minValue">inclusive minimum value</param>
/// <param name="maxValue">inclusive maximum value</param>
/// <param name="maxAttempts">maximum number of attempts</param>
/// <param name="pluralName">plural name of item</param>
/// <param name="validInput">indicates valid user input</param>
/// <returns></returns>
public static bool TryGetIntegerFromUser(int minValue, int maxValue, int maxAttempts, string pluralName, out int userInteger)
{
bool validInput = false;
bool maxAttemptsExceeded = false;
string userResponse;
string feedbackMessage = "";
int attempts = 1;
userInteger = 0;
while (!validInput && !maxAttemptsExceeded)
{
//
// more attempts available
//
if (attempts <= maxAttempts)
{
ConsoleUtil.DisplayPromptMessage($"Enter a 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);
}