541 lines
18 KiB
C#
541 lines
18 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Markup.Localizer;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Shapes;
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using Database.Models;
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using Pos.Models;
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using Pos.Service;
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namespace Pos
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{
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/// <summary>
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/// Interaction logic for SalesWindow.xaml
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/// </summary>
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public partial class SalesWindow : Window
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{
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private ObservableCollection<EmployeeEntity> _employees;
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private ObservableCollection<ProductGroupEntity> _productGroups;
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private ObservableCollection<SaleGridModel> _saleGridModels;
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private ObservableCollection<AmountGridModel> _paymentGridModels;
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private readonly SalesTransactionService _salesTransactionService =
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new SalesTransactionService();
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private ProductEntity _selectedProduct;
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private ProductGroupEntity _selectedProductGroup;
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private int _employeeId = -1;
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private int _productGroupId = -1;
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private int _productId = -1;
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private int _selectedSaleGridIndex = -1;
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private int _maxCharOfName = 0;
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private Button _prevEmpButton = new Button();
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private Button _prevProductGroupButton = new Button();
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private Button _prevProduct = new Button();
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public SalesWindow()
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{
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InitializeComponent();
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InitialLoad();
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}
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private void InitialLoad()
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{
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CacheService.Invalidate();
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_employees = CacheService.GetEmployee() as ObservableCollection<EmployeeEntity>;
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_productGroups = CacheService.GetProductGroupsIncludeProducts() as ObservableCollection<ProductGroupEntity>;
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_saleGridModels = new ObservableCollection<SaleGridModel>();
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_paymentGridModels = new ObservableCollection<AmountGridModel>();
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SaleGrid.ItemsSource = _saleGridModels;
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PaymentGrid.ItemsSource = _paymentGridModels;
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BuildEmployee();
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BuildProductGroup();
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ManipulateBuySection();
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UpdateWindowTitle();
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foreach (var productGroup in _productGroups)
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{
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if (_maxCharOfName < productGroup.Name.Length)
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_maxCharOfName = productGroup.Name.Length;
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foreach (ProductEntity product in productGroup.Products)
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{
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if (_maxCharOfName < product.Name.Length)
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_maxCharOfName = product.Name.Length;
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}
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}
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}
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private void BtnPrGr_Click(object sender, RoutedEventArgs e)
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{
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_productId = -1;
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_prevProductGroupButton.Style = (Style)FindResource("SaleButtons");
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Button button = sender as Button;
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_prevProductGroupButton = button;
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button.Style = (Style)FindResource("SaleButtonsActive");
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_productGroupId = (int)button.Tag;
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_selectedProductGroup = _productGroups.Single(c => c.Id == _productGroupId);
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BuildProducts(_selectedProductGroup.Products);
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ManipulateBuySection();
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}
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private void BtnProduct_Click(object sender, RoutedEventArgs e)
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{
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_prevProduct.Style = (Style)FindResource("SaleButtons");
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Button button = sender as Button;
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_prevProduct = button;
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button.Style = (Style)FindResource("SaleButtonsActive");
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_productId = (int)button.Tag;
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_selectedProduct = _selectedProductGroup.Products.Single(c => c.Id == _productId);
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ManipulateBuySection();
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}
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private void BtnEmp_Click(object sender, RoutedEventArgs e)
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{
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_prevEmpButton.Style = (Style)FindResource("SaleButtons");
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_prevProductGroupButton.Style = (Style)FindResource("SaleButtons");
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//DockProduct.Children.Clear();
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Button button = sender as Button;
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_prevEmpButton = button;
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button.Style = (Style)FindResource("SaleButtonsActive");
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_employeeId = (int) button.Tag;
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UIElementCollection employees = DockProductGroup.Children;
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foreach (UIElement emp in employees)
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{
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button = (Button)emp;
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button.IsEnabled = true;
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}
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}
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private void SaleGrid_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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DataGrid dg = (DataGrid)sender;
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_selectedSaleGridIndex = dg.SelectedIndex;
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}
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private void NumberOfProducts_GotFocus(object sender, RoutedEventArgs e)
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{
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NumberOfProducts.Text = string.Empty;
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}
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private void Buy_Click(object sender, RoutedEventArgs e)
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{
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bool isValid = ValidatePriceInput();
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if (!isValid)
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return;
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isValid = ValidateNumberOfProductsInput();
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if (!isValid)
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return;
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decimal price = Convert.ToDecimal(Price.Text);
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int numberOfProducts = Convert.ToInt32(NumberOfProducts.Text);
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try
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{
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BuildPrice(numberOfProducts, price);
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}
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catch (ArgumentException exception)
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{
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MessageBox.Show(
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exception.Message,
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"Ugyldig salgslinje",
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MessageBoxButton.OK,
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MessageBoxImage.Error);
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return;
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}
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NumberOfProducts.Text = "1";
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Price.Text = string.Empty;
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TotalPrice.Content = "0";
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_productId = -1;
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_productGroupId = -1;
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ManipulateBuySection();
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}
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private void Payment_Click(object sender, RoutedEventArgs e)
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{
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decimal? amount = null;
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if (!string.IsNullOrEmpty(Amount.Text))
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{
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bool isValid = ValidateAmountInput();
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if (!isValid)
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return;
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amount = Convert.ToDecimal(Amount.Text);
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}
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Amount.Text = string.Empty;
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Button button = sender as Button;
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string paymentMethodName =
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((string)button.Tag).Replace("PaymentMethod.", string.Empty);
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if (!Enum.TryParse(paymentMethodName, out PaymentMethod paymentMethod))
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return;
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try
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{
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BuildAmuntDataGrid(amount, paymentMethod);
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}
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catch (ArgumentException exception)
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{
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MessageBox.Show(
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exception.Message,
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"Ugyldig betaling",
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MessageBoxButton.OK,
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MessageBoxImage.Error);
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}
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}
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private void NumberOfProducts_LostFocus(object sender, RoutedEventArgs e)
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{
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bool isValid = ValidateNumberOfProductsInput();
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if (!isValid)
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return;
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CalculateSubPrice();
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}
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private void Price_KeyUp(object sender, KeyEventArgs e)
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{
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if (e.Key == Key.Enter)
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{
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Buy_Click(null,null);
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}
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else
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{
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CalculateSubPrice();
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}
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}
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private void BuildEmployee()
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{
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DockProductGroup.Children.Clear();
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//DockProduct.Children.Clear();
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DockEmployee.Children.Clear();
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bool firstEmployee = true;
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foreach (EmployeeEntity employee in _employees)
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{
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Button btnEmp = new Button();
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btnEmp.Style = (Style)FindResource("SaleButtons");
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btnEmp.Content = employee.Name;
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btnEmp.Tag = employee.Id;
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btnEmp.Click += BtnEmp_Click;
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DockEmployee.Children.Add(btnEmp);
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if (firstEmployee)
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{
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firstEmployee = false;
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btnEmp.RaiseEvent(new RoutedEventArgs(ButtonBase.ClickEvent));
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}
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}
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}
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private void BuildProductGroup()
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{
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DockProductGroup.Children.Clear();
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foreach (ProductGroupEntity productGroup in _productGroups)
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{
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Button btnPrGr = new Button();
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btnPrGr.Style = (Style)FindResource("SaleButtons");
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btnPrGr.Content = productGroup.Name;
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btnPrGr.Tag = productGroup.Id;
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btnPrGr.Click += BtnPrGr_Click;
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if (_employeeId == -1)
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btnPrGr.IsEnabled = false;
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DockProductGroup.Children.Add(btnPrGr);
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}
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}
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private void BuildProducts(ICollection<ProductEntity> products)
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{
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// DockProduct.Children.Clear();
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foreach (ProductEntity product in products)
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{
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Button btnProduct = new Button();
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btnProduct.Style = (Style)FindResource("SaleButtons");
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btnProduct.Content = product.Name;
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btnProduct.Tag = product.Id;
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btnProduct.Click += BtnProduct_Click;
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// DockProduct.Children.Add(btnProduct);
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}
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}
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private void BuildPrice(int numberOfProducts, decimal price)
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{
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PriceLineModel priceLineModel;
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if (_selectedProduct != null)
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{
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priceLineModel = _salesTransactionService.AddSaleLine(
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_selectedProduct.Id,
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_selectedProduct.Name,
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numberOfProducts,
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price,
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false);
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}
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else
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{
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priceLineModel = _salesTransactionService.AddSaleLine(
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_selectedProductGroup.Id,
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_selectedProductGroup.Name,
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numberOfProducts,
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price,
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true);
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}
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BuildPriceDataGrid(priceLineModel);
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//BuildEmployee();
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BuildProductGroup();
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}
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private void CalculateSubPrice()
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{
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bool isValid = decimal.TryParse(Price.Text, out decimal price);
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if (!isValid)
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return;
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isValid = Int32.TryParse(
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NumberOfProducts.Text,
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out int numberOfProducts);
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if (!isValid)
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return;
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try
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{
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TotalPrice.Content =
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_salesTransactionService.CalculateLineTotal(
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price,
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numberOfProducts);
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}
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catch (ArgumentOutOfRangeException)
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{
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TotalPrice.Content = "0";
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}
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}
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private void CalculateTotalLine()
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{
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Total.Content =
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$"At betale: Kr. {_salesTransactionService.TotalPrice}";
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}
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private void BuildPriceDataGrid(PriceLineModel priceLineModel)
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{
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_selectedProduct = null;
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_selectedProductGroup = null;
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CalculateTotalLine();
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SaleGridModel model = new SaleGridModel();
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model.Navn = priceLineModel.Name;
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model.Pris = $"kr. {priceLineModel.Price}";
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model.Stk = $"- {priceLineModel.NumberProducts} stk. à";
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model.Total = $"= Kr. {priceLineModel.NumberProducts * priceLineModel.Price}";
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SaleGridInternalModel saleGridInternalModel = new SaleGridInternalModel();
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saleGridInternalModel.InternPrice = priceLineModel.Price;
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saleGridInternalModel.InternPieces = priceLineModel.NumberProducts;
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model.SaleGridInternalModel = saleGridInternalModel;
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//model.InternPrice = priceLineModel.Price;
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//model.InternPieces = priceLineModel.NumberProducts;
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_saleGridModels.Add(model);
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}
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private bool ValidateNumberOfProductsInput()
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{
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int notUsed;
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bool isValid = Int32.TryParse(NumberOfProducts.Text, out notUsed);
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if (!isValid)
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{
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MessageBox.Show($"{NumberOfProducts.Text} er ikke en gyldig værdi! \nSætter 1 som standard værdi ", "Ikke gyldig værdi",
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MessageBoxButton.OK, MessageBoxImage.Error);
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NumberOfProducts.Text = "1";
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return false;
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}
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return true;
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}
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private bool ValidatePriceInput()
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{
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decimal p = 0;
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bool isValid = Decimal.TryParse(Price.Text, out p);
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if (!isValid)
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{
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string msg = "";
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if (string.IsNullOrEmpty(Price.Text))
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{
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msg = "En tom pris er ikke en gyldig værdi!";
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}
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else
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{
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msg = $"{Price.Text} er ikke en gyldig pris!";
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}
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MessageBox.Show(msg, "Ugyldig pris", MessageBoxButton.OK,
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MessageBoxImage.Error);
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return false;
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}
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return true;
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}
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private bool ValidateAmountInput()
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{
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decimal p = 0;
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bool isValid = Decimal.TryParse(Amount.Text, out p);
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if (!isValid)
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{
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string msg = "";
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if (string.IsNullOrEmpty(Amount.Text))
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{
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msg = "Et tomt beløb er ikke en gyldig værdi!";
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}
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else
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{
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msg = $"{Amount.Text} er ikke et gyldigt beløb!";
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}
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MessageBox.Show(msg, "Ugyldigt beløb", MessageBoxButton.OK,
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MessageBoxImage.Error);
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return false;
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}
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return true;
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}
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private void ManipulateBuySection()
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{
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bool enabled = _productGroupId > 0 || _productId > 0;
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PricePanel.IsEnabled = enabled;
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NumberOfProducts.IsEnabled = enabled;
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Price.IsEnabled = enabled;
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Price.Focus();
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BtnBuy.IsEnabled = enabled;
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LblStk.IsEnabled = enabled;
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LblPrice.IsEnabled = enabled;
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LblTotal.IsEnabled = enabled;
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TotalPrice.IsEnabled = enabled;
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}
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private void BuildAmuntDataGrid(
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decimal? amount,
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PaymentMethod paymentMethod)
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{
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AmountGridModel amountGridModel =
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_salesTransactionService.AddPayment(paymentMethod, amount);
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amountGridModel.AmountText = $"Kr. {amountGridModel.Amount}";
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_paymentGridModels.Add(amountGridModel);
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AmountPayed();
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}
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private void AmountPayed()
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{
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if (_salesTransactionService.AmountPaid ==
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_salesTransactionService.TotalPrice)
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{
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btnFinish_Click(null,null);
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return;
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}
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if (_salesTransactionService.Change > 0)
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{
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lblRecived.Content =
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$"Byttepenge: Kr. {_salesTransactionService.Change}";
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Style style = this.FindResource("BoldLabelWarningNoMargin") as Style;
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lblRecived.Style = style;
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btnFinish.IsEnabled = true;
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}
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else
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{
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lblRecived.Content =
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$"At betale: Kr. {_salesTransactionService.RemainingAmount}";
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Style style = this.FindResource("BoldLabelNoMargin") as Style;
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lblRecived.Style = style;
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}
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}
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private void SaleGrid_KeyUp(object sender, KeyEventArgs e)
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{
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if (e.Key == Key.Delete)
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{
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if (_selectedSaleGridIndex == -1)
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return;
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int index = _selectedSaleGridIndex;
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_salesTransactionService.RemoveSaleLineAt(index);
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_saleGridModels.RemoveAt(index);
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_selectedSaleGridIndex = -1;
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CalculateTotalLine();
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if (_salesTransactionService.AmountPaid > 0)
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AmountPayed();
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}
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}
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private void btnFinish_Click(object sender, RoutedEventArgs e)
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{
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try
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{
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_salesTransactionService.EnsureCanComplete();
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}
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catch (InvalidOperationException exception)
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{
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MessageBox.Show(
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exception.Message,
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"Salget kan ikke afsluttes",
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MessageBoxButton.OK,
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MessageBoxImage.Error);
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return;
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}
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SaleService saleService = new SaleService();
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saleService.Save(_saleGridModels.ToList(),_paymentGridModels.ToList(),_employeeId);
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_paymentGridModels.Clear();
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_salesTransactionService.Reset();
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UpdateWindowTitle();
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_saleGridModels.Clear();
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lblRecived.Content = string.Empty;
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_selectedSaleGridIndex = -1;
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btnFinish.IsEnabled = false;
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CalculateTotalLine();
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BuildEmployee();
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BuildProductGroup();
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ManipulateBuySection();
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}
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private void BtnPrint_Click(object sender, RoutedEventArgs e)
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{
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SaleService saleService = new SaleService();
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saleService.PrintReceipt();
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}
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private void UpdateWindowTitle()
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{
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SaleService saleService = new SaleService();
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Title = saleService.LastAndTotalSale();
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}
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}
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}
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