/*! \fn void setPaymentForm(PaymentForm paymentForm)
* \brief A set Payment Form.
* \details It is used to make operation on PaymentForm.
* \param paymentForm it is an PaymentForm object.
* \return void
*/
public void setPaymentForm(PaymentForm paymentForm)
{
customernamelbl.Text = paymentForm.nametxtbox.Text;
customeraddresslbl.Text = paymentForm.customeraddresstxtbox.Text;
customertotalpricelbl.Text = paymentForm.customerform.total_price_textbox.Text;
//to assign clicked installment radiobutton
RadioButton checkedButton = paymentForm.installment_groupbox.Controls.OfType <RadioButton>()
.FirstOrDefault(r => r.Checked);
if (checkedButton != null)
{
customerinstallmentlbl.Text = checkedButton.Text;
}
for (int i = 0; i < paymentForm.customerform.shopping_cart_list.Count; i++)
{
ItemToPurchase item = (ItemToPurchase)paymentForm.customerform.shopping_cart_list[i];
if (item.product.getId() == LoginForm.current_customer_id)
{
ListViewItem lv_item = new ListViewItem(item.product.getName());
lv_item.SubItems.Add(item.quantity.ToString());
lv_item.SubItems.Add(item.product.getPrice().ToString());
lv_item.SubItems.Add(item.total_price.ToString());
productlistview.Items.Add(lv_item);
}
}
paymentForm.Close();
}
/*! \fn void addProduct(ItemToPurchase item)
* \brief A void add product function.
* \details It is used to add product into shopping cart.
* \param item it is ItemToPurchase object.
* \return void
*/
public void addProduct(ItemToPurchase item)
{
bool check = true;
Database database = Database.get_instance();
//to check whether the product exists in the database or not
for (int i = 0; i < itemsToPurchase_list.Count; i++)
{
ItemToPurchase item_obj = (ItemToPurchase)itemsToPurchase_list[i];
if (item_obj.product.getId() == customerID && item_obj.product.getName().Equals(item.product.getName()))
{
item_obj.quantity++;
itemsToPurchase_list.RemoveAt(i);
itemsToPurchase_list.Insert(i, item_obj);
using (SQLiteConnection connection = new SQLiteConnection("Data Source=" + Application.StartupPath + "\\BookStore.db;Version=3"))
{
connection.Open();
using (SQLiteCommand command = new SQLiteCommand(connection))
{
command.CommandText =
"update ShoppingCartTable set Amount = :amount,TotalPrice = :totalprice where Id = :id AND Product= :product";
command.Parameters.Add("amount", DbType.Int32).Value = item_obj.quantity;
command.Parameters.Add("totalprice", DbType.Double).Value = item_obj.quantity * item_obj.product.getPrice();
command.Parameters.Add("id", DbType.Int32).Value = customerID;
command.Parameters.Add("product", DbType.String).Value = item.product.getName();
command.ExecuteNonQuery();
}
connection.Close();
}
check = false;
break;
}
}
if (check)
{
//if the product does not exist in the database,it is added to the database.
itemsToPurchase_list.Add(item);
using (SQLiteConnection sql_con = new SQLiteConnection("Data Source=" + Application.StartupPath + "\\BookStore.db;Version=3"))
{
SQLiteCommand sql_command = new SQLiteCommand();
sql_command.CommandText = "Insert Into ShoppingCartTable(Id,Product,Amount,UnitPrice,TotalPrice,Image) Values(@Id,@Product,@Amount,@UnitPrice,@TotalPrice,@Image)";
sql_command.Connection = sql_con;
sql_command.Parameters.AddWithValue("@Id", customerID);
sql_command.Parameters.AddWithValue("@Product", item.product.getName());
sql_command.Parameters.AddWithValue("@Amount", item.quantity);
sql_command.Parameters.AddWithValue("@UnitPrice", item.product.getPrice());
sql_command.Parameters.AddWithValue("@TotalPrice", item.product.getPrice() * item.quantity);
sql_command.Parameters.AddWithValue("@Image", item.product.ToString().Split('.')[1] + "," + item.product.getId().ToString());
sql_con.Open();
sql_command.ExecuteNonQuery();
sql_con.Close();
}
}
}
/*! void buy_button_Click(object sender, EventArgs e)
* \brief A click listener function.
* \details It is used to make a purchase.
* \param sender it is an object
* \param e it is an EventArgs
* \return void
*/
private void buy_button_Click(object sender, EventArgs e)
{
if (String.IsNullOrEmpty(customeraddresstxtbox.Text) && cash_radiobutton.Checked)
{
MessageBox.Show("Please fill full in the fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (creditcard_radiobutton.Checked &&
(String.IsNullOrEmpty(nametxtbox.Text) || !expirydate_maskedTextBox.MaskFull ||
!cardnumber_maskedTextBox.MaskFull || !cvv_maskedTextBox.MaskFull))
{
MessageBox.Show("Please fill full in the fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
DialogResult confirm_question = MessageBox.Show("Would you like to buy it?",
"The Confirmation",
MessageBoxButtons.YesNoCancel,
MessageBoxIcon.Question);
if (confirm_question == DialogResult.Yes)
{
InvoiceForm invoice_form = new InvoiceForm();
invoice_form.setPaymentForm(this);
invoice_form.Show();
ShoppingCart shopping_cart = new ShoppingCart(LoginForm.current_customer_id, ref customerform.shopping_cart_list, 1);
for (int i = 0; i < customerform.shopping_cart_list.Count; i++)
{
ItemToPurchase item = (ItemToPurchase)customerform.shopping_cart_list[i];
if (item.product.getId() == LoginForm.current_customer_id)
{
shopping_cart.removeProduct(item);
// to send message to customer about change of stock by using Observer Pattern
item.product.Attach(customer);
item.product.ChangeStock();
i--;
}
}
customerform.total_quantity = 0;
customerform.numberofproduct.Text = "0";
customerform.shopping_cart_list.Clear();
customerform.shoppingcart_datagridview.Rows.Clear();
customerform.shoppingcart_datagridview.Refresh();
customerform.total_price_textbox.Text = "0";
}
}
}
/*! \fn int getTotalProduct()
* \brief A int return total product.
* \details It is used to return total product in shopping cart.
* \return int
*/
public int getTotalProduct()
{
int totalproduct = 0;
for (int i = 0; i < itemsToPurchase_list.Count; i++)
{
ItemToPurchase item = (ItemToPurchase)itemsToPurchase_list[i];
if (customerID == item.product.getId())
{
totalproduct += item.quantity;
}
}
return(totalproduct);
}
/*! \fn void removeProduct(ItemToPurchase item)
* \brief A void remove product function.
* \details It is used to remove product from shopping cart.
* \param item it is ItemToPurchase object.
* \return void
*/
public void removeProduct(ItemToPurchase item)
{
Database database = Database.get_instance();
using (SQLiteConnection sql_con = new SQLiteConnection("Data Source=" + Application.StartupPath + "\\BookStore.db;Version=3"))
{
SQLiteCommand sql_command = new SQLiteCommand();
sql_command.CommandText = "Delete From ShoppingCartTable where Id = '" + customerID + "' AND Product = '" + item.product.getName() + "'";
sql_command.Connection = sql_con;
sql_con.Open();
sql_command.ExecuteNonQuery();
sql_con.Close();
}
if (itemsToPurchase_list.Contains(item))
{
itemsToPurchase_list.Remove(item);
}
}
/*! \fn void clean_unknownuser_shoppingcart()
* \brief A void function.
* \details It is used to clean shopping cart of unknown customer.
* \return void
*/
private void clean_unknownuser_shoppingcart()
{
ths.read_shopping_cart();
ShoppingCart shopping_cart = new ShoppingCart(-1, ref ths.shopping_cart_list, 1);
for (int i = 0; i < ths.shopping_cart_list.Count; i++)
{
ItemToPurchase item = (ItemToPurchase)ths.shopping_cart_list[i];
if (item.product.getId() == -1)
{
shopping_cart.removeProduct(item);
i--;
}
}
if (ths.shoppingcart_datagridview != null)
{
ths.shoppingcart_datagridview.ClearSelection();
ths.shoppingcart_datagridview.Update();
ths.shoppingcart_datagridview.Refresh();
}
this.Close();
}