// Method to delete an article by its ID
public void deleteArticleByID(int idArticleToDelete)
{
if (searchArticleById(idArticleToDelete))
{
if (headArticle.Article.IdArticle == idArticleToDelete)
{
headArticle.Next.Previous = null;
headArticle = headArticle.Next;
}
else
{
ArticleNode tmp = headArticle;
while (tmp.Next.Article.IdArticle != idArticleToDelete)
{
tmp = tmp.Next;
}
ArticleNode next = tmp.Next.Next;
next.Previous = tmp;
tmp.Next = next;
}
}
else
{
Console.WriteLine("The article to be deleted cannot be found in the system.");
}
}
// Method to add a new article to the list
public bool addArticle(Article articleData)
{
if (articleData == null)
{
return(false);
}
if (headArticle == null)
{
headArticle = new ArticleNode();
headArticle.Article = articleData;
}
else
{
if (searchArticleById(articleData.IdArticle) == false)
{
ArticleNode tmp = getLastNode();
ArticleNode newNode = new ArticleNode();
newNode.Article = articleData;
newNode.Previous = tmp;
tmp.Next = newNode;
return(true);
}
else
{
Console.WriteLine("The article is already registered in the system.");
}
}
return(false);
}
// Method to get the last node in the list
public ArticleNode getLastNode()
{
ArticleNode tmp = null;
if (this.HeadArticle != null)
{
tmp = this.HeadArticle;
while (tmp.Next != null)
{
tmp = tmp.Next;
}
}
return(tmp);
}
// Method to obtain the total value of the items in the list
public Double totalValue()
{
Double count = 0;
if (!(headArticle == null))
{
ArticleNode tmp = headArticle;
while (tmp != null)
{
count += tmp.Article.TotalPrice;
tmp = tmp.Next;
}
}
return(count);
}
/*=========================================METHODS================================*/
// Method to get the size of the list
public int getSize()
{
ArticleNode tmp = null;
int count = 0;
if (this.HeadArticle != null)
{
tmp = this.HeadArticle;
while (tmp.Next != null)
{
count++;
tmp = tmp.Next;
}
}
return(count);
}
// Method to show all the elements of the list for invoice
public void listArticlesByInvoice()
{
if (!(headArticle == null))
{
ArticleNode tmp = headArticle;
while (tmp != null)
{
tmp.Article.itemStatusByInvoice();
tmp = tmp.Next;
}
}
else
{
Console.WriteLine("This invoice is empty.");
}
}
// Method to show all elements of the list
public void listArticles()
{
if (!(headArticle == null))
{
ArticleNode tmp = headArticle;
while (tmp != null)
{
tmp.Article.showArticleStatus();
tmp = tmp.Next;
}
}
else
{
Console.WriteLine("The article list is empty");
}
}
// Method to edit the data of an article by its ID
public void editArticleByID(int idArticleToEdit, ArticleNode editedArticle)
{
if (searchArticleById(idArticleToEdit))
{
ArticleNode tmp = headArticle;
while (tmp.Article.IdArticle != idArticleToEdit)
{
tmp = tmp.Next;
}
tmp.Article.NameArticle = editedArticle.Article.NameArticle;
tmp.Article.Stock = editedArticle.Article.Stock;
tmp.Article.Price = editedArticle.Article.Price;
}
else
{
Console.WriteLine("The article to be edited cannot be found in the system.");
}
}
// Parameters to edit an article
static ArticleNode editArticle()
{
Console.WriteLine("Enter the ID of the article to edit:");
Console.WriteLine("Article Id:");
int id = Int32.Parse(Console.ReadLine());
Console.WriteLine("Enter the new data for this article...");
Console.WriteLine("Article Name:");
String name = Console.ReadLine();
Console.WriteLine("Stock Item:");
int stock = Int32.Parse(Console.ReadLine());
Console.WriteLine("Item Price:");
Double price = Double.Parse(Console.ReadLine());
ArticleNode article = new ArticleNode(new Article(id, name, stock, price));
return(article);;
}
// Method to search for an article in the list by its id
public bool searchArticleById(int idArticleSearch)
{
bool found = false;
if (!(headArticle == null))
{
ArticleNode tmp = headArticle;
while (tmp != null && found != true)
{
if (idArticleSearch == tmp.Article.IdArticle)
{
found = true;
}
else
{
tmp = tmp.Next;
}
}
}
return(found);
}
// Method to return an article by its name
public ArticleNode returnArticleByName(string nameArticleToReturn)
{
ArticleNode tmp = null;
int count = 0;
if (!(headArticle == null))
{
if (searchArticleByName(nameArticleToReturn) == true)
{
tmp = this.HeadArticle;
while (count < getSize() && !(tmp.Article.NameArticle == nameArticleToReturn))
{
tmp = tmp.Next;
}
}
else
{
Console.WriteLine("The client is not registered in the system.");
}
}
return(tmp);
}
//Constructors
public ArticleList()
{
headArticle = null;
}
public ArticleList(ArticleNode headArticle)
{
this.headArticle = headArticle;
}
static void Main(string[] args)
{
// Customer default data
Customer customer1 = new Customer(1, "Juan", 3216573456);
Customer customer2 = new Customer(2, "Pepito", 3218764865);
Customer customer3 = new Customer(3, "Marco", 3146578934);
Customer customer4 = new Customer(4, "Andres", 3135555567);
Customer customer5 = new Customer(5, "Sandro", 3203217676);
//Article default data
Article article1 = new Article(1, "Celular Huawey", 13, 450000.00);
Article article2 = new Article(2, "Televisor Samsung", 7, 1050000.00);
Article article3 = new Article(3, "Equipo de Sonido LG", 5, 600000.00);
Article article4 = new Article(4, "Celular Iphone X", 5, 3500000.00);
Article article5 = new Article(5, "Celular Moto G7", 16, 750000.0);
// Fill customers list with default data
customerList.addCustomer(customer1);
customerList.addCustomer(customer2);
customerList.addCustomer(customer3);
customerList.addCustomer(customer4);
customerList.addCustomer(customer5);
// Fill articles list with default data
articleList.addArticle(article1);
articleList.addArticle(article2);
articleList.addArticle(article3);
articleList.addArticle(article4);
articleList.addArticle(article5);
//Menu de opciones para el sistema
int value;
do
{
Console.WriteLine("1- List clients.");
Console.WriteLine("2- List articles.");
Console.WriteLine("3- Add a new client to the system.");
Console.WriteLine("4- Add a new article to the system.");
Console.WriteLine("5- Edit customer data.");
Console.WriteLine("6- Edit the data of an article.");
Console.WriteLine("7- Delete a client.");
Console.WriteLine("8- Delete an article.");
Console.WriteLine("9- List Invoices.");
Console.WriteLine("10- Add a new invoice to the system.");
Console.WriteLine("11- List the invoices of a customer.");
Console.WriteLine("0- EXIT");
Console.WriteLine("Please select an option:");
value = Convert.ToInt32(Console.ReadLine());
switch (value)
{
case 1: customerList.listCustomers(); break;
case 2: articleList.listArticles(); break;
case 3: Customer customer = loadCustomer(); customerList.addCustomer(customer); break;
case 4: Article article = loadArticle(); articleList.addArticle(article); break;
case 5: CustomerNode customerEdit = editCustomer(); customerList.editCustomerByID(customerEdit.Customer.IdCustomer, customerEdit); break;
case 6: ArticleNode articleEdit = editArticle(); articleList.editArticleByID(articleEdit.Article.IdArticle, articleEdit); break;
case 7: deleteCustomer(customerList); break;
case 8: deleteArticle(articleList); break;
case 9: invoiceList.listInvoices(); break;
case 10: Invoice invoice = loadInvoice(); invoiceList.addInvoice(invoice); break;
case 11: invoiceList.listInvoicesByCustomer(invoiceListByCustomer()); break;
}
Console.Write("Press any key to continue . . .");
Console.ReadKey();
Console.Clear();
} while (value != 0);
}
//Constructors
public ArticleNode()
{
article = new Article();
next = previous = null;
}
