// Method to add a new customer to the list
public bool addCustomer(Customer customerData)
{
if (customerData == null)
{
return(false);
}
if (headCustomer == null)
{
headCustomer = new CustomerNode();
headCustomer.Customer = customerData;
}
else
{
if (searchCustomerById(customerData.IdCustomer) == false)
{
CustomerNode tmp = getLastNode();
CustomerNode newNode = new CustomerNode();
newNode.Customer = customerData;
tmp.Next = newNode;
return(true);
}
else
{
Console.WriteLine("The customer is already registered in the system.");
}
}
return(false);
}
public Invoice(int idInvoice, CustomerNode customer, ArticleList itemsList, Double invoiceValue)
{
this.idInvoice = idInvoice;
this.date = DateTime.Now;
this.customer = customer;
this.itemsList = itemsList;
this.invoiceValue = invoiceValue;
}
// Method to get the last node in the list
public CustomerNode getLastNode()
{
CustomerNode tmp = null;
if (this.HeadCustomer != null)
{
tmp = this.HeadCustomer;
while (tmp.Next != null)
{
tmp = tmp.Next;
}
}
return(tmp);
}
/*=========================================METHODS================================*/
// Method to get the size of the list
public int getSize()
{
CustomerNode tmp = null;
int count = 0;
if (this.HeadCustomer != null)
{
tmp = this.HeadCustomer;
while (tmp.Next != null)
{
count++;
tmp = tmp.Next;
}
}
return(count);
}
// Method to show all elements of the list
public void listCustomers()
{
if (!(headCustomer == null))
{
CustomerNode tmp = headCustomer;
while (tmp != null)
{
tmp.Customer.showCustomerStatus();
tmp = tmp.Next;
}
}
else
{
Console.WriteLine("The customer list is empty");
}
}
// Parameters to edit a customer
static CustomerNode editCustomer()
{
Console.WriteLine("Enter the ID of the client to edit:");
Console.WriteLine("Id Customer:");
int id = Int32.Parse(Console.ReadLine());
Console.WriteLine("Enter the new data for this customer...");
Console.WriteLine("Customer Name:");
String name = Console.ReadLine();
Console.WriteLine("Customer Phone:");
long phone = long.Parse(Console.ReadLine());
CustomerNode customer = new CustomerNode(new Customer(id, name, phone));
return(customer);
}
// Method to edit the data of an customer by his ID
public void editCustomerByID(int idCustomerToEdit, CustomerNode editedCustomer)
{
if (searchCustomerById(idCustomerToEdit))
{
CustomerNode tmp = headCustomer;
while (tmp.Customer.IdCustomer != idCustomerToEdit)
{
tmp = tmp.Next;
}
tmp.Customer.NameCustomer = editedCustomer.Customer.NameCustomer;
tmp.Customer.Phone = editedCustomer.Customer.Phone;
}
else
{
Console.WriteLine("The customer to be edited cannot be found in the system.");
}
}
// Method to return an customer by his name
public CustomerNode returnCustomerByName(string nameCustomerToReturn)
{
CustomerNode tmp = null;
int count = 0;
if (!(headCustomer == null))
{
if (searchCustomerByName(nameCustomerToReturn) == true)
{
tmp = this.HeadCustomer;
while (count < getSize() && !(tmp.Customer.NameCustomer == nameCustomerToReturn))
{
tmp = tmp.Next;
}
}
}
return(tmp);
}
// Method to return an customer by his ID
public CustomerNode returnCustomerByID(int idCustomerToReturn)
{
CustomerNode tmp = null;
int count = 0;
if (!(headCustomer == null))
{
if (searchCustomerById(idCustomerToReturn) == true)
{
tmp = this.HeadCustomer;
while (count < getSize() && !(tmp.Customer.IdCustomer == idCustomerToReturn))
{
tmp = tmp.Next;
}
}
}
return(tmp);
}
// Method to search for an customer in the list by his id
public bool searchCustomerById(int idCustomerSearch)
{
bool found = false;
if (!(headCustomer == null))
{
CustomerNode tmp = headCustomer;
while (tmp != null && found != true)
{
if (idCustomerSearch == tmp.Customer.IdCustomer)
{
found = true;
}
else
{
tmp = tmp.Next;
}
}
}
return(found);
}
// Method to delete an customer by his ID
public void deleteCustomerByID(int idCustomerToDelete)
{
if (searchCustomerById(idCustomerToDelete))
{
if (headCustomer.Customer.IdCustomer == idCustomerToDelete)
{
headCustomer = headCustomer.Next;
}
else
{
CustomerNode tmp = headCustomer;
while (tmp.Next.Customer.IdCustomer != idCustomerToDelete)
{
tmp = tmp.Next;
}
CustomerNode next = tmp.Next.Next;
tmp.Next = next;
}
}
else
{
Console.WriteLine("The customer to be deleted cannot be found in the system.");
}
}
//Constructors
public CustomerList()
{
headCustomer = null;
}
public CustomerList(CustomerNode headCustomer)
{
this.headCustomer = headCustomer;
}
//Constructors
public CustomerNode()
{
customer = new Customer();
next = null;
}
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);
}
// Parameters to add a new invoice
static Invoice loadInvoice()
{
Console.WriteLine("Enter the details of the new invoice:");
Console.WriteLine("Id Invoice:");
int id = Int32.Parse(Console.ReadLine());
Console.WriteLine("ID Customer:");
int idCli = Int32.Parse(Console.ReadLine());
CustomerNode customer = customerList.returnCustomerByID(idCli);
Console.WriteLine("List articles:");
ArticleList listItems = new ArticleList();
int var = 1;
do
{
Console.WriteLine("Enter the ID of the article you want to add:");
int idA = Int32.Parse(Console.ReadLine());
Article newArticle = articleList.returnArticleByID(idA).Article;
Console.WriteLine("Enter the amount you want to carry:");
int cant = Int32.Parse(Console.ReadLine());
if (cant > newArticle.Stock)
{
Console.WriteLine("Not all these drives are available.");
Console.WriteLine("Do you want to enter another quantity less than: {0}", newArticle.Stock, "units.");
Console.WriteLine("1- YES");
Console.WriteLine("0- NO");
Console.WriteLine("Please select an option:");
int a = Int32.Parse(Console.ReadLine());
if (a == 1)
{
Console.WriteLine("Enter the amount you want to carry:");
cant = Int32.Parse(Console.ReadLine());
newArticle.Quantity = cant;
newArticle.TotalPrice = newArticle.Quantity * newArticle.Price;
articleList.returnArticleByID(idA).Article.updateStock(newArticle.Stock - cant);
listItems.addArticle(newArticle);
}
else
{
listItems.addArticle(null);
}
}
else
{
newArticle.Quantity = cant;
newArticle.TotalPrice = newArticle.Quantity * newArticle.Price;
articleList.returnArticleByID(idA).Article.updateStock(newArticle.Stock - cant);
listItems.addArticle(newArticle);
}
Console.WriteLine("You want to add another item to the invoice:");
Console.WriteLine("1- YES");
Console.WriteLine("0- NO");
Console.WriteLine("Please select an option:");
var = Int32.Parse(Console.ReadLine());
Console.Write("Press any key to continue...");
Console.ReadKey();
Console.Clear();
} while (var != 0);
Double valueInvoice = listItems.totalValue();
Invoice invoice = new Invoice(id, customer, listItems, valueInvoice);
return(invoice);
}
