CourseWork_BeautySalon/BeautySalonViewEmployee/WindowReceipt.xaml.cs

using BeautySalonContracts.BindingModels;
using BeautySalonContracts.BusinessLogicsContracts;
using BeautySalonContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using Unity;

namespace BeautySalonViewEmployee
{
    /// <summary>
    /// Логика взаимодействия для WindowReceipt.xaml
    /// </summary>
    public partial class WindowReceipt : Window
    {
        public int Id { set { id = value; } }

        public int EmployeeId { set { employeeId = value; } }

        private readonly IReceiptLogic _logicR;

        private readonly ICosmeticLogic _logicC;

		private int? purchaseId;            // будет хранить связанный Purchase.Id
		private DateTime? originalReceiptDate;  // будет хранить дату чека из БД

		private int? id;

        private int? employeeId;

        private Dictionary<int, (string, int)> receiptCosmetics;

        public WindowReceipt(IReceiptLogic logicR, ICosmeticLogic logicC)
        {
            InitializeComponent();
            this._logicR = logicR;
            this._logicC = logicC;
        }

		private void WindowReceipt_Loaded(object sender, RoutedEventArgs e)
		{
			if (id.HasValue)
			{
				try
				{
					var view = _logicR.Read(new ReceiptBindingModel { Id = id.Value })?[0];
					if (view != null)
					{
						// запоминаем дату и purchaseId из БД
						originalReceiptDate = view.Date;
						purchaseId = view.PurchaseId;

						TextBoxTotalCost.Text = view.TotalCost.ToString("F2");
						TextBoxDate.Text = originalReceiptDate.Value.ToString("g");
						TextBoxPurchase.Text = view.PurchaseDate?.ToString("g") ?? "";

						receiptCosmetics = view.ReceiptCosmetics;
						LoadData();
					}
				}
				catch (Exception ex)
				{
					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
				}
			}
			else
			{
				receiptCosmetics = new Dictionary<int, (string, int)>();
			}
		}


		private void LoadData()
		{
			try
			{
				if (receiptCosmetics != null)
				{
					dataGrid.Columns.Clear();
					var list = new List<DataGridReceiptItemViewModel>();
					foreach (var rc in receiptCosmetics)
					{
						list.Add(new DataGridReceiptItemViewModel()
						{
							Id = rc.Key,
							CosmeticName = rc.Value.Item1,
							Price = _logicC.Read(new CosmeticBindingModel { Id = rc.Key })?[0].Price,
							Count = rc.Value.Item2
						});
					}
					dataGrid.ItemsSource = list;
					dataGrid.Columns[0].Visibility = Visibility.Hidden;
				}
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
			}
		}


		private void buttonAdd_Click(object sender, RoutedEventArgs e)
        {
            var window = App.Container.Resolve<WindowSelectionCosmetics>();
            window.EmployeeId = (int)employeeId;
            if (window.ShowDialog().Value)
            {
                if (receiptCosmetics.ContainsKey(window.Id))
                {
                    receiptCosmetics[window.Id] = (window.CosmeticName, window.Count);
                }
                else
                {
                    receiptCosmetics.Add(window.Id, (window.CosmeticName, window.Count));
                }
                LoadData();
                CalcTotalCost();
            }
        }

        private void CalcTotalCost()
        {
            try
            {
                int totalCost = 0;
                foreach (var rc in receiptCosmetics)
                {
                    totalCost += rc.Value.Item2 * (int)_logicC.Read(new CosmeticBindingModel { Id = rc.Key })?[0].Price;
                }
                TextBoxTotalCost.Text = totalCost.ToString();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }

        private void buttonUpd_Click(object sender, RoutedEventArgs e)
        {
            if (dataGrid.SelectedCells.Count != 0)
            {
                var window = App.Container.Resolve<WindowSelectionCosmetics>();
                window.Id = ((DataGridReceiptItemViewModel)dataGrid.SelectedCells[0].Item).Id;
                window.Count = ((DataGridReceiptItemViewModel)dataGrid.SelectedCells[0].Item).Count;
                window.EmployeeId = (int)employeeId;

                if (window.ShowDialog().Value)
                {
                    receiptCosmetics[window.Id] = (window.CosmeticName, window.Count);
                    LoadData();
                    CalcTotalCost();
                }
            }
        }

        private void buttonDel_Click(object sender, RoutedEventArgs e)
        {
            if (dataGrid.SelectedCells.Count != 0)
            {
                if (MessageBox.Show("Удалить запись", "Вопрос", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
                {
                    try
                    {
                        receiptCosmetics.Remove(((DataGridReceiptItemViewModel)dataGrid.SelectedCells[0].Item).Id);
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
                    }
                    LoadData();
                }
            }
        }

        private void buttonRef_Click(object sender, RoutedEventArgs e)
        {
            LoadData();
        }

		private void buttonSave_Click(object sender, RoutedEventArgs e)
		{
			if (receiptCosmetics == null || receiptCosmetics.Count == 0)
			{
				MessageBox.Show("Заполните косметику", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
				return;
			}
			try
			{
				_logicR.CreateOrUpdate(new ReceiptBindingModel
				{
					Id = id,
					EmployeeId = employeeId,
					PurchaseId = purchaseId,               // вот он, сохраняем связь
					TotalCost = Convert.ToDecimal(TextBoxTotalCost.Text),
					Date = originalReceiptDate ?? DateTime.Now, // не перезаписываем на Now
					ReceiptCosmetics = receiptCosmetics
				});
				MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButton.OK, MessageBoxImage.Information);
				DialogResult = true;
				Close();
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
			}
		}


		private void buttonCancel_Click(object sender, RoutedEventArgs e)
        {
            DialogResult = false;
            Close();
        }

		/// <summary>
		/// Данные для привязки DisplayName к названиям столбцов
		/// </summary>
		private void DataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
		{
			string displayName = GetPropertyDisplayName(e.PropertyDescriptor);
			if (!string.IsNullOrEmpty(displayName))
			{
				e.Column.Header = displayName;
			}
		}


		/// <summary>
		/// метод привязки DisplayName к названию столбца
		/// </summary>
		public static string GetPropertyDisplayName(object descriptor)
        {
            PropertyDescriptor pd = descriptor as PropertyDescriptor;
            if (pd != null)
            {
                // Check for DisplayName attribute and set the column header accordingly
                DisplayNameAttribute displayName = pd.Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute;
                if (displayName != null && displayName != DisplayNameAttribute.Default)
                {
                    return displayName.DisplayName;
                }
            }
            else
            {
                PropertyInfo pi = descriptor as PropertyInfo;
                if (pi != null)
                {
                    // Check for DisplayName attribute and set the column header accordingly
                    Object[] attributes = pi.GetCustomAttributes(typeof(DisplayNameAttribute), true);
                    for (int i = 0; i < attributes.Length; ++i)
                    {
                        DisplayNameAttribute displayName = attributes[i] as DisplayNameAttribute;
                        if (displayName != null && displayName != DisplayNameAttribute.Default)
                        {
                            return displayName.DisplayName;
                        }
                    }
                }
            }
            return null;
        }
    }
}