OOOWriteAndClear/OOO_WriteAndClear/MVP/Views/OrdersUserControl.xaml.cs

using OOO_WriteAndClear.DBModels;
using OOO_WriteAndClear.EventBus.Signals;
using OOO_WriteAndClear.MVP.Models.ProductsUserControlModel;
using OOO_WriteAndClear.MVP.MVPInterfaces;
using OOO_WriteAndClear.MVP.Presenters;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace OOO_WriteAndClear.MVP.Views
{
    /// <summary>
    /// Логика взаимодействия для OrdersUserControl.xaml
    /// </summary>
    public partial class OrdersUserControl : UserControl, IOrdersUserControlContract.View
    {
        public OrdersUserControl()
        {
            InitializeComponent();
            _presenter = new OrdersUserControlPresenter(this);
            SetUserData();
        }


        private void Back_ButtonClick(object sender, RoutedEventArgs e) => 
            EventBus.EventBus.GetService().Invoke(new BackToFeaturesMenuUserControlSignal());

        private void SetUserData()
        {
            User user = (User)Application.Current.Resources["CurrentUser"];
            DisplayingUserName.Text = user.UserSurname
                + " "
                + user.UserName
                + " "
                + user.UserPatronymic;
            DisplayingUserRole.Text = user.UserRoleNavigation.RoleName;
        }

        private void OrdersUserControlLoaded(object sender, RoutedEventArgs e)
        {
            SetFilterComboBox();
            SetSortingComboBox();
            _isInitialized = true;
            FirstInitializeOrdersListView();
        }

        private Task UpdateOrdersListView()
        {
            return Task.Run(() =>
            {
                _presenter.UpdateOrdersFromDB();
                Dispatcher.BeginInvoke(new Action(() =>
                {
                    OrderListView.ItemsSource = _presenter.Orders;
                }));
            });
        }

        private void SetFilterComboBox()
        {
            FilterComboBox.ItemsSource = Filters;
            FilterComboBox.SelectedIndex = 0;
        }

        private void SetSortingComboBox()
        {
            SortComboBox.ItemsSource = SortingVarients;
            SortComboBox.SelectedIndex = 0;
        }


        private List<FilterByDiscountParameters> Filters = new List<FilterByDiscountParameters>()
        {
            new FilterByDiscountParameters(0, 100),
            new FilterByDiscountParameters(0, 10),
            new FilterByDiscountParameters(10, 15),
            new FilterByDiscountParameters(15, 100),
        };

        private List<string> SortingVarients = new List<string>()
        {
            "По возрастанию",
            "По убыванию"
        };

        private IOrdersUserControlContract.Presenter _presenter;

        private bool _isInitialized = false;

        private void FilterChanged_SelectionChangedComboBox(object sender, SelectionChangedEventArgs e)
        {
            if (!_isInitialized)
                return;
            FilterAndSortOrders();
        }

        private void SortChanged_SelectionChangedComboBox(object sender, SelectionChangedEventArgs e)
        {
            if (!_isInitialized)
                return;
            FilterAndSortOrders();
        }

        private void FilterAndSortOrders()
        {
            FilterByDiscountParameters filterByDiscountParameters = (FilterByDiscountParameters)FilterComboBox.SelectedItem;
            string sortingVarients = (string)SortComboBox.SelectedItem;
            Task.Run(() =>
            {
                ICollection<Order> orders = _presenter.UpdateOrdersListForSortingAndFilting(
                filterByDiscountParameters
                , sortingVarients);
                Dispatcher.BeginInvoke(() => 
                {
                    OrderListView.ItemsSource = orders;
                });
            });
            
        }

        private async Task FirstInitializeOrdersListView()
        {
            await UpdateOrdersListView();
            FilterAndSortOrders();
        }
    }
}