using System.Windows.Media.Animation;
using Muchinfo.MTPClient.Data.DTO;
using Muchinfo.MTPClient.Data.Enums;
using Muchinfo.MTPClient.Data.Model;
using Muchinfo.MTPClient.Infrastructure.Helpers;
using Muchinfo.MTPClient.Infrastructure.Interfaces;
using Muchinfo.MTPClient.Quotation.ViewModels;
using Muchinfo.PC.Common.Helpers;
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using Muchinfo.MTPClient.Infrastructure.Cache;
using System.Linq;
using Muchinfo.MTPClient.IService;
using GalaSoft.MvvmLight.Ioc;
using Muchinfo.MTPClient.Infrastructure.Utilities;

namespace Muchinfo.MTPClient.Quotation.Views
{
    /// <summary>
    /// QuoteBoardView.xaml 的交互逻辑
    /// </summary>
    public partial class QuoteBoardView : UserControl, IDisposable, IQuoteView
    {
        #region Fields
        private const double Const_ScrollWidth = 60d;

        private MenuCommandType _currentType;
        private string _additionalInfo;
        private MarketsInfoModel _goodsGroup;
        private ISystemService _systemService;
        private ScrollViewer _datagridScrollViewer;  //当前行情DataGrid滚动条
        #endregion

        #region Properties

        private QuoteBoardViewModel ViewModel
        {
            get
            {
                return this.DataContext as QuoteBoardViewModel;
            }
        }

        public ScrollViewer DataGridScrollViewer
        {
            get
            {
                if (_datagridScrollViewer != null)
                {
                    return _datagridScrollViewer;
                }
                _datagridScrollViewer = WPFVisualTreeHelper.FindVisualChild<ScrollViewer>(this.QuoteListBox);
                return _datagridScrollViewer;
            }
        }

        #endregion

        #region Constructors

        public QuoteBoardView(MenuCommandType commandType, MarketsInfoModel additionalInfo)
        {
            InitializeComponent();
            _systemService = SimpleIoc.Default.GetInstance<ISystemService>();
            this.DataContext = new QuoteBoardViewModel();
            RefreshList(commandType, additionalInfo);
            _goodsGroup = additionalInfo;

            this.QuoteListBox.PreviewMouseWheel += QuoteListBox_PreviewMouseWheel;
            this.QuoteListBox.SelectionChanged += QuoteListBox_SelectionChanged;
            this.QuoteListBox.KeyUp += QuoteListBox_KeyUp;

            MessengerHelper.DefaultRegister<QuoteGoods>(this, MessengerTokens.QuoteBoardSelectItemChange, (goods) =>
            {
                if (QuoteListBox == null) return;
                QuoteListBox.SelectedItem = goods;
            });

            MessengerHelper.DefaultRegister<string>(this, MessengerTokens.RefreshGoodsToken, (msg) =>
                {
                    Application.Current.Dispatcher.BeginInvoke(new Action(() =>
                    {
                        RefreshList(_currentType, _goodsGroup);
                    }));

                });

            this.Unloaded += QuoteBoardView_Unloaded;
            if (!IsDeliveryVisible)
            {
                this.PAndXGoodsInfoDataGrid.HorizontalScrollBarVisibility = ScrollBarVisibility.Hidden;
                
            }
        }


        /// <summary>
        /// 删除注册内容
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void QuoteBoardView_Unloaded(object sender, RoutedEventArgs e)
        {
            //MessengerHelper.DefaultUnregister(MessengerTokens.RefreshGoodsToken);
            //MessengerHelper.DefaultUnregister(MessengerTokens.RegisterResourceChange);
            //MessengerHelper.DefaultUnregister(MessengerTokens.QuoteBoardSelectItemChange);

            //Dispose();
        }

        #endregion

        #region Event Handlers

        /// <summary>
        /// Handles the KeyUp event of the QuoteListBox control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="KeyEventArgs"/> instance containing the event data.</param>
        private void QuoteListBox_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Left)
            {
                if (DataGridScrollViewer == null) return;
                DataGridScrollViewer.ScrollToHorizontalOffset(DataGridScrollViewer.HorizontalOffset - Const_ScrollWidth);
                e.Handled = true;
            }
            else if (e.Key == Key.Right)
            {
                if (DataGridScrollViewer == null) return;
                DataGridScrollViewer.ScrollToHorizontalOffset(DataGridScrollViewer.HorizontalOffset + Const_ScrollWidth);
                e.Handled = true;
            }
        }

        /// <summary>
        /// Handles the SelectionChanged event of the QuoteListBox control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="SelectionChangedEventArgs"/> instance containing the event data.</param>
        private void QuoteListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems != null && e.AddedItems.Count > 0)
            {
                var quoteGoods = e.AddedItems[0] as QuoteGoodsDTO;
                if (quoteGoods != null)
                {
                    MessengerHelper.DefaultSend<QuoteGoodsDTO>(quoteGoods, MessengerTokens.SelectGoodsChange);
                    if (ViewModel != null)
                    {
                        ViewModel.SelectGoodsOfPAndX_ItemSource(quoteGoods);
                        if (ViewModel.GoodsOfPandXInfoList != null)
                        {
                            var fistGoods = ViewModel.GoodsOfPandXInfoList.FirstOrDefault();
                            if (fistGoods != null)
                            {
                                var group = CacheManager.CacheMarketsGroups.FirstOrDefault(
                                     (item) => item.MarketID == fistGoods.GoodsGroupId);
                                BuildDeliveryDataGridColumns(group);
                            }
                        }
                    }
                }
            }
        }

        #region 交割行情列表

        private void BuildDeliveryDataGridColumns(MarketsInfoModel goosGroup)
        {
            var type = GetQuoteListHeaderTypeByeMarket(goosGroup);
            var headerList = _systemService.GetDeliveryQuoteListHeaders(type);
            var quoteListHeaders = (headerList == null) ? null : headerList.ToList();
            if (quoteListHeaders == null || !quoteListHeaders.Any()) return;
            ////根据QuoteListHeader集合创建行情DataGrid列集合
            var columns = QuoteDataGridHelper.CreateQuoteDataGridColumns(quoteListHeaders);
            if (columns == null || !columns.Any()) return;
            ////清除所有列
            PAndXGoodsInfoDataGrid.Columns.Clear();
            ////添加列
            foreach (var column in columns)
            {
                PAndXGoodsInfoDataGrid.Columns.Add(column);
            }
        }
        #endregion

        /// <summary>
        /// 根据市场获取列头
        /// </summary>
        /// <param name="goodsGroup">The goods group.</param>
        /// <returns>MarketType.</returns>
        private eTradeMode GetQuoteListHeaderTypeByeMarket(MarketsInfoModel goodsGroup)
        {
            if (goodsGroup == null)
            {
                return eTradeMode.TRADEMODE_MARKETMAKE;
            }
            return goodsGroup.TradeMode;
        }

        /// <summary>
        /// Handles the PreviewMouseWheel event of the QuoteListBox control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseWheelEventArgs"/> instance containing the event data.</param>
        private void QuoteListBox_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
        {
            if (e.Delta > 0)
            {
                DataGridScrollViewer.PageUp();
            }
            if (e.Delta < 0)
            {
                DataGridScrollViewer.PageDown();
            }

            e.Handled = true;
        }




        #endregion

        #region IDispose

        /// <summary>
        /// 执行与释放或重置非托管资源相关的应用程序定义的任务。
        /// </summary>
        public void Dispose()
        {
            MessengerHelper.DefaultUnregister(this);

            if (ViewModel != null) ViewModel.Cleanup();
            if (QuoteListBox != null)
            {
                this.QuoteListBox.PreviewMouseWheel -= QuoteListBox_PreviewMouseWheel;
                this.QuoteListBox.SelectionChanged -= QuoteListBox_SelectionChanged;
                this.QuoteListBox.KeyUp -= QuoteListBox_KeyUp;
                QuoteListBox.Resources.Clear();
                QuoteListBox = null;
            }
            this.Resources.Clear();
            GC.Collect();
        }

        #endregion

        #region IQuoteView

        /// <summary>
        /// 选中商品
        /// </summary>
        /// <value>The selected item.</value>
        /// <exception cref="System.NotImplementedException">
        /// </exception>
        public QuoteGoods SelectedItem
        {
            get
            {
                return QuoteListBox.SelectedItem as QuoteGoods;
            }
        }

        /// <summary>
        /// 第一个商品
        /// </summary>
        /// <value>The first quote goods.</value>
        /// <exception cref="System.NotImplementedException">
        /// </exception>
        public QuoteGoods FirstQuoteGoods
        {
            get
            {
                if (QuoteListBox.Items.Count == 0) return null;

                return QuoteListBox.Items[0] as QuoteGoods;
            }
        }

        /// <summary>
        /// 更新列表数据
        /// </summary>
        /// <param name="newType">The new type.</param>
        /// <param name="goodsGroup">The goods group.</param>
        public void RefreshList(MenuCommandType newType, MarketsInfoModel goodsGroup)
        {
            _currentType = newType;
            _goodsGroup = goodsGroup;

            if (ViewModel != null)
            {
                ViewModel.RefreshList(_currentType, _goodsGroup);
            }

            QuoteListBox.SelectedIndex = 0;
        }


        #endregion

        private void DecimalUpDown_KeyDown(object sender, KeyEventArgs e)
        {
            //屏蔽非法字符
            if ((e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || (e.Key >= Key.D0 && e.Key <= Key.D9))
            {
                e.Handled = false;
            }
            else
            {
                e.Handled = true;
            }
        }

        public bool IsDeliveryVisible
        {
            get
            {
                return ApplicationParameter.IsDeliveryVisible == 1 && UserManager.IsAccountLogin;
            }
        }
    }
}