using System.Windows;
using GalaSoft.MvvmLight.Command;
using GalaSoft.MvvmLight.Messaging;
using Muchinfo.MTPClient.Data;
using Muchinfo.MTPClient.Data.Enums;
using Muchinfo.MTPClient.Data.Model.Account;
using Muchinfo.MTPClient.Infrastructure.Utilities;
using Muchinfo.WPF.Controls.Windows;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace Muchinfo.MTPClient.Account.ViewModels
{
    public class CompleteOrderViewModel : RegisterMessageBase
    {
        private const int historyMaxDays = 90;

        private bool _radioNow = true;
        /// <summary>
        /// 当前查询
        /// </summary>
        public bool RadioNow
        {
            get { return _radioNow; }
            set
            {
                Set(() => RadioNow, ref _radioNow, value);
                if (_radioNow)
                {
                    _radioCustom = false;
                    QueryOrders();
                }
            }
        }

        private bool _radioCustom;
        /// <summary>
        /// 自定义是否选中
        /// </summary>
        public bool RadioCustom
        {
            get { return _radioCustom; }
            set
            {
                Set(() => RadioCustom, ref _radioCustom, value);

                EndDateTime = DateTime.Now.AddDays(-1); //查询历史为当前的前一天
                StartDateTime = EndDateTime.AddDays(1 - EndDateTime.Day);   //结束当月的第一天
                if (_radioCustom)
                {
                    _radioNow = false;
                    QueryOrders();
                }
            }
        }


        /// 查询开始时间
        private DateTime _startDateTime;

        /// <summary>
        /// 查询开始时间
        /// </summary>
        public DateTime StartDateTime
        {
            get { return _startDateTime; }
            set
            {
                Set(() => StartDateTime, ref _startDateTime, new DateTime(value.Year, value.Month, value.Day));
            }
        }

        /// 查询结束时间
        private DateTime _endDateTime;

        /// <summary>
        /// 查询结束时间
        /// </summary>
        public DateTime EndDateTime
        {
            get { return _endDateTime; }
            set
            {
                Set(() => EndDateTime, ref _endDateTime, new DateTime(value.Year, value.Month, value.Day));
            }
        }

        private ObservableCollection<CompleteOrder> _completeOrders = new ObservableCollection<CompleteOrder>();

        /// <summary>
        /// 成交单
        /// </summary>
        public ObservableCollection<CompleteOrder> CompleteOrders
        {
            get { return _completeOrders; }
            set { Set(() => CompleteOrders, ref _completeOrders, value); }
        }


        /// <summary>
        /// 刷新
        /// </summary>
        public RelayCommand RefreshCommand
        {
            get
            {
                return new RelayCommand(() =>
                {
                    QueryOrders();
                });
            }
        }

        /// <summary>
        /// 刷新账户信息
        /// </summary>
        public override void RefreshContent()
        {
            RefreshCommand.Execute(null);
        }


        public CompleteOrderViewModel()
        {
           
        }

        /// <summary>
        /// 单据注册消息
        /// </summary>
        public override void RegisterMessage()
        {
            //当选择时刷新

            var cacheData = UserManager.GetTradeCacheData(UserManager.CurrentTradeAccount.AccountId);
            if (!cacheData.CompleteOrderFlag)
            {
                RefreshCommand.Execute(null);
            }
            else
            {
                UpdateOrders();
            }


            Application.Current.Dispatcher.BeginInvoke(new Action(() =>
            {
                Messenger.Default.Unregister<TradeAccount>(this, MessengerTokens.OrderNotify);
                Messenger.Default.Register<TradeAccount>(this, MessengerTokens.OrderNotify, (e) =>
                {
                    if (RadioNow)
                    {
                        UpdateOrders();
                    }
                });
            }));

        }

        /// <summary>
        /// 更新当前单据
        /// </summary>
        private void UpdateOrders()
        {
            CompleteOrders = UserManager.GetCacheOrders<CompleteOrder>();
        }


        private void QueryOrders()
        {
            if (validate())
            {
                IsBusy = true;
                var queryCommons = new List<QueryCommonParam>();
                if (RadioNow)   ////查询当前
                {
                    queryCommons.Add(new QueryCommonParam() { ParamKey = "accountId", ParamValue = UserManager.CurrentTradeAccount.AccountId + string.Empty });
                }
                else  ////查询历史
                {
                    //todo:查询历史参数
                    queryCommons.Add(new QueryCommonParam() { ParamKey = "accountId", ParamValue = UserManager.CurrentTradeAccount.AccountId + string.Empty });
                }

                _orderService.QueryComplateOrders(QueryStatement.QueryComplateOrder, queryCommons, QueryComplateOrderSuccessCallback, QueryErrorCallback);

            }
        }

        public void QueryComplateOrderSuccessCallback(List<CompleteOrder> completeOrders)
        {
            IsBusy = false;
            UpdateOrders();
        }

        /// <summary>
        /// 验证输入有效性
        /// </summary>
        /// <returns></returns>
        private bool validate()
        {
            if (RadioCustom)
            {
                if (StartDateTime.AddHours(-StartDateTime.Hour) > EndDateTime)
                {
                    MessageBoxHelper.ShowInfo(
                        Muchinfo.MTPClient.Resources.Muchinfo_Resource.Models_EndDateLessBegin,
                        Muchinfo.MTPClient.Resources.Muchinfo_Resource.APP_Tips);
                    return false;
                }
                else if ((EndDateTime - StartDateTime).TotalDays > historyMaxDays)
                {
                    MessageBoxHelper.ShowInfo(
                     string.Format(Muchinfo.MTPClient.Resources.Muchinfo_Resource.QueryDaysMustblow, historyMaxDays),
                      Muchinfo.MTPClient.Resources.Muchinfo_Resource.APP_Tips);
                    return false;
                }
            }
            return true;
        }


        public override void UnRegisterMessage()
        {

            Messenger.Default.Unregister<TradeAccount>(this, MessengerTokens.OrderNotify);
            base.UnRegisterMessage();
        }
    }
}