/// <summary>
/// Checks if the article name already exists
/// </summary>
/// <returns>The article name</returns>
public string CheckIfArticleExists()
{
using (ArticleServiceClient wcf = new ArticleServiceClient())
{
List <Article> allArticls = wcf.GetAllArticles().ToList();
string word = Console.ReadLine();
BackToMainMenu(word);
for (int i = 0; i < allArticls.Count; i++)
{
if (allArticls[i].Name.ToLower() == word.ToLower())
{
Console.Write("This article name already exists. Please try again: ");
BackToMainMenu(word);
word = Console.ReadLine().ToLower();
i = -1;
}
else if (string.IsNullOrEmpty(word))
{
Console.Write("The input cannot be empty. Please try again: ");
BackToMainMenu(word);
word = Console.ReadLine();
i = -1;
}
}
return(word);
}
}
/// <summary>
/// Shows all articles in the file
/// </summary>
/// <returns>The total amount of articles</returns>
public int ShowAllArticles()
{
int counter = 0;
using (ArticleServiceClient wcf = new ArticleServiceClient())
{
foreach (var item in wcf.GetAllArticles())
{
if (item.Amount != 0)
{
Console.WriteLine("{0,3}. {1,20} - {2,-1}\t {3,-20}", ++counter, item.Name, (item.Price).ToString("0.00") + " rsd", "Amount: " + item.Amount);
}
else
{
Console.WriteLine("{0,3}. {1,20} - {2,-1}\t {3,-20}", ++counter, item.Name, (item.Price).ToString("0.00") + " rsd", ">> OUT OF STOCK <<");
}
}
}
return(counter);
}
/// <summary>
/// Edit existing article
/// </summary>
public void EditArticle()
{
int count = ShowAllArticles();
Validations val = new Validations();
Console.Write("\nSelect an article number: ");
int number = val.ValidMaxPositiveNumber(count);
Console.Write("Choose the new price: ");
double price = val.ValidPositiveDouble();
// Used for later notification depending if the article was updated or not
Article changedArticle = new Article();
using (ArticleServiceClient wcf = new ArticleServiceClient())
{
List <Article> allArticles = wcf.GetAllArticles().ToList();
Article article = new Article()
{
Name = allArticles[number - 1].Name,
Amount = allArticles[number - 1].Amount,
Price = price
};
changedArticle = wcf.ModifyArticle(article);
}
// Notification
if (changedArticle == null)
{
Console.WriteLine("Article update failed.");
}
else
{
Console.WriteLine($"Successfully updated article {changedArticle.Name}");
}
}
/// <summary>
/// Purchase article
/// </summary>
public void PurchaseArticles()
{
string answer = "";
string bill = "";
int number = 0;
int currentAmount = 0;
double totalPrice = 0;
Validations val = new Validations();
Console.WriteLine("==============================================\n" +
"Return option is disabled until purchase is completed." +
"\n==============================================");
// Do until User presses No as an answer
do
{
int count = ShowAllArticles();
using (ArticleServiceClient wcf = new ArticleServiceClient())
{
List <Article> allArticles = wcf.GetAllArticles().ToList();
// Do until a valid item is selected
do
{
Console.Write("\nSelect an article number: ");
number = val.ValidMaxPositiveNumber(count);
currentAmount = allArticles[number - 1].Amount;
if (currentAmount == 0)
{
Console.Write("Cannot select an article that is out of stock.");
}
} while (currentAmount == 0);
// Select amount
Console.Write("Choose the amount: ");
int amount = val.ValidMaxPositiveNumber(allArticles[number - 1].Amount);
// Changed article after reducing the total amount
Article article = new Article()
{
Name = allArticles[number - 1].Name,
Amount = allArticles[number - 1].Amount - amount,
Price = allArticles[number - 1].Price
};
// Calculate total price and save the item on the bill
totalPrice += amount * article.Price;
bill += article.Name + " - " + (amount * article.Price) + " rsd" + "\t\t(" + amount + "*" + article.Price + ")" + "|";
wcf.ModifyArticle(article);
}
Console.Write("\nWould you like to purchase more items? (yes/no): ");
answer = val.YesNo();
Console.Clear();
} while (answer.ToLower() == "yes");
// Update bill with all the info before saving it
bill += "|-----------------------|Total price: " + totalPrice + " rsd|" + "Hour: " + DateTime.Now.ToString("HH:mm:ss") + "|";
// Save the bill
using (ArticleServiceClient wcf = new ArticleServiceClient())
{
wcf.SaveBill(bill);
}
// Bill preview
Console.WriteLine("Successfult finished the purchase!\n");
string[] billInfo = bill.Split('|');
foreach (var item in billInfo)
{
Console.WriteLine(item);
}
}