using OOO_WriteAndClear.DBModels;
using OOO_WriteAndClear.EventBus;
using OOO_WriteAndClear.EventBus.Signals;
using OOO_WriteAndClear.MVP.Models.OrderFormerer;
using OOO_WriteAndClear.MVP.MVPInterfaces;
using OOO_WriteAndClear.MVP.Presenters;
using System;
using System.Collections.Generic;
using System.ComponentModel;
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.Shapes;

namespace OOO_WriteAndClear.MVP.Views
{
    /// <summary>
    /// Логика взаимодействия для OrderCartWindow.xaml
    /// </summary>
    public partial class OrderCartWindow : Window, IOrderCartWindowContract.IView
    {
        public OrderCartWindow()
        {
            _presenter = new OrderCartWindowPresenter(this);
            InitializeComponent();
            LoadPickupPoints();
        }


        public OrderCartWindow(OrderFormerer orderFormerer)
        {
            _presenter = new OrderCartWindowPresenter(this);
            InitializeComponent();
            SetCurrentOrderFormerer(orderFormerer);
            LoadPickupPoints();
        }


        #region Свойства для установки данных на экран

        public string OrderCostWithoutDiscount
        {
            get => _orderCostWithoutDiscount;
            set
            {
                _orderCostWithoutDiscount = value;
                Dispatcher.Invoke(new Action(() =>
                {
                    OrderCostWithoutDiscountField.Text = _orderCostWithoutDiscount;
                }));
            }
        }
        public string OrderDiscount
        {
            get => _orderDiscount;
            set
            {
                _orderDiscount = value;
                Dispatcher.Invoke(new Action(() =>
                {
                    OrderDiscountField.Text = _orderDiscount;
                }));
            }
        }
        public string OrderCostWithDiscount
        {
            get => _orderCostWithDiscount;
            set
            {
                _orderCostWithDiscount = value;
                Dispatcher.Invoke(new Action(() =>
                {
                    OrderCostWithDiscountField.Text = _orderCostWithDiscount;
                }));
            }
        }

        public ICollection<OrderProduct> OrderList 
        {
            set
            {
                Dispatcher.Invoke(new Action(() =>
                {
                    DisplayingOrderList.Items.Refresh();
                    DisplayingOrderList.ItemsSource = value;
                }));
            }
        }

        #endregion


        #region Обработчики событий окна

        /// <summary>
        /// Нажатие по кнопке добавления единицы продукта
        /// </summary>
        /// <param name="sender">Кнопка добавления</param>
        /// <param name="e">параметры события</param>
        private void AddProductUnitInOrder_ButtonClick(object sender, RoutedEventArgs e)
        {
            string article = ((Button)sender).Uid;
            Task.Run(() => 
            {
                _presenter.AddProductUnitIntoOrder(article);
            });
        }

        /// <summary>
        /// Нажатие по кнопке уменьшения количества продукта
        /// </summary>
        /// <param name="sender">Кнопка уменьшения</param>
        /// <param name="e">параметры события</param>
        private void RemoveProductUnitFromOrder_ButtonClick(object sender, RoutedEventArgs e)
        {
            string article = ((Button)sender).Uid;
            Task.Run(() =>
            {
                _presenter.RemoveProductUnitFromOrder(article);
            });
        }

        /// <summary>
        /// Нажатие по кнопке удаления продукта из заказа
        /// </summary>
        /// <param name="sender">Кнопка удаления</param>
        /// <param name="e">параметры события</param>
        private void RemoveProductFromOrder_ButtonClick(object sender, RoutedEventArgs e)
        {
            string article = ((Button)sender).Uid;
            Task.Run(() =>
            {
                _presenter.RemoveProductFromOrder(article);
            });
        }

        /// <summary>
        /// Нажатие по кнопке формирования заказа
        /// </summary>
        /// <param name="sender">Кнопка формирования заказа</param>
        /// <param name="e">параметры события</param>
        private void FormOrder_ButtonClick(object sender, RoutedEventArgs e)
        {
            if (_presenter.CurrentOrder.OrderProducts.Count == 0)
            {
                MessageBox.Show("Корзина пуста!", "Корзина", MessageBoxButton.OK);
                return;
            }
            if (_selectedPickupPoint is null)
            {
                MessageBox.Show("Пункт выдачи не выбран!", "Пункт выдачи", MessageBoxButton.OK);
                return;
            }
            _presenter.AddOrderInSystem(_selectedPickupPoint);
            EventBus.EventBus.GetService().Invoke(new ShowOrderTalonSignal(_presenter.CurrentOrder));
        }

        /// <summary>
        /// Смена пункта выдачи заказа в comboBox
        /// </summary>
        /// <param name="sender">ComboBox заказа</param>
        /// <param name="e">параметры события</param>
        private void PickupPointComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            _selectedPickupPoint = (PickupPoint)PickupPointComboBox.SelectedItem;
        }

        #endregion


        private IOrderCartWindowContract.IPresenter _presenter;

        private PickupPoint? _selectedPickupPoint = null;

        private string _orderCostWithoutDiscount;
        private string _orderDiscount;
        private string _orderCostWithDiscount;


        private void SetCurrentOrderFormerer(OrderFormerer orderFormerer)
            => _presenter.SetCurrentOrderFormerer(orderFormerer);

        private void LoadPickupPoints()
        {
            ICollection<PickupPoint> pickupPoints;
            Task.Run(() =>
            {
                pickupPoints = _presenter.GetAllPickupPoints();
                Dispatcher.BeginInvoke(new Action(() =>
                {
                    PickupPointComboBox.ItemsSource = pickupPoints;
                }));
            });
        }
    }
}