bbwyb/BBWYB.Client/ViewModels/Order/OrderViewModel.cs

using BBWYB.Client.APIServices;
using BBWYB.Client.Models;
using BBWYB.Client.Views.Order;
using BBWYB.Common.Extensions;
using BBWYB.Common.Models;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;
using SJ.Controls;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;

namespace BBWYB.Client.ViewModels
{
    public class OrderViewModel : BaseVM, IDenpendency
    {
        private bool isLoading;
        private DateTime startDate;
        private DateTime endDate;
        private int pageIndex = 1;
        private int pageSize = 10;
        private long orderCount;
        private OrderState? orderState;
        private string searchSku;
        private string searchProductId;
        private string searchOrderId;
        private string searchClientOrderId;
        private string searchSourceShopName;
        private string searchSourceSku;
        private bool excludeCanceled;
        private GlobalContext globalContext;
        private OrderService orderService;

        public bool IsLoading { get => isLoading; set { SetProperty(ref isLoading, value); } }

        public DateTime StartDate { get => startDate; set { SetProperty(ref startDate, value); } }

        public DateTime EndDate { get => endDate; set { SetProperty(ref endDate, value); } }
        public int PageIndex { get => pageIndex; set { SetProperty(ref pageIndex, value); } }
        public int PageSize { get => pageSize; set { SetProperty(ref pageSize, value); } }
        public long OrderCount { get => orderCount; set { SetProperty(ref orderCount, value); } }
        public OrderState? OrderState { get => orderState; set { SetProperty(ref orderState, value); } }
        public string SearchSku { get => searchSku; set { SetProperty(ref searchSku, value); } }
        public string SearchProductId { get => searchProductId; set { SetProperty(ref searchProductId, value); } }
        public string SearchOrderId { get => searchOrderId; set { SetProperty(ref searchOrderId, value); } }
        public string SearchClientOrderId { get => searchClientOrderId; set { SetProperty(ref searchClientOrderId, value); } }
        public string SearchSourceShopName { get => searchSourceShopName; set { SetProperty(ref searchSourceShopName, value); } }
        public string SearchSourceSku { get => searchSourceSku; set { SetProperty(ref searchSourceSku, value); } }
        public bool ExcludeCanceled { get => excludeCanceled; set { SetProperty(ref excludeCanceled, value); } }
        public IList<Order> OrderList { get; set; }

        public ICommand SetSearchDateCommand { get; set; }
        public ICommand SetOrderStateCommand { get; set; }
        public ICommand OrderPageIndexChangedCommand { get; set; }

        public OrderViewModel(GlobalContext globalContext, OrderService orderService)
        {
            OrderList = new ObservableCollection<Order>();
            SetOrderStateCommand = new RelayCommand<OrderState?>(SetOrderState);
            SetSearchDateCommand = new RelayCommand<int>(d =>
            {
                EndDate = d == 1 ? DateTime.Now.Date.AddDays(-1) : DateTime.Now;
                StartDate = DateTime.Now.Date.AddDays(d * -1);
                PageIndex = 1;
                Task.Factory.StartNew(() => LoadOrder(PageIndex));  //点击日期查询订单
            });
            OrderPageIndexChangedCommand = new RelayCommand<PageArgs>(p =>
            {
                Task.Factory.StartNew(() => LoadOrder(p.PageIndex));
            });
            PageSize = 10;
            EndDate = DateTime.Now;
            StartDate = DateTime.Now.Date;
            this.globalContext = globalContext;
            this.orderService = orderService;
        }

        private void LoadOrder(int pageIndex)
        {
            IsLoading = true;
            var response = orderService.GetOrderList(SearchOrderId, StartDate, EndDate, OrderState, SearchProductId, SearchSku, SearchClientOrderId, SearchSourceShopName, SearchSourceSku, PageIndex, PageSize, globalContext.User.Shop.ShopId, ExcludeCanceled);

            if (!response.Success)
            {
                IsLoading = false;
                App.Current.Dispatcher.Invoke(() =>
                {
                    MessageBox.Show(response.Msg, "提示");
                    return;
                });
            }
            IsLoading = false;
            OrderCount = response.Data.Count;
            if (response.Data.Items == null || response.Data.Items.Count() == 0)
                return;

            var list = response.Data.Items.Map<IList<Order>>();
            App.Current.Dispatcher.Invoke(() =>
            {
                foreach (var o in list)
                {
                    OrderList.Clear();
                    foreach (var order in list)
                    {
                        order.LocalConvert();
                        OrderList.Add(order);
                    }
                    WeakReferenceMessenger.Default.Send(new Message_OrderListScrollToTop(null));
                }
            });
        }

        /// <summary>
        /// 通过订单状态 筛选订单数据
        /// </summary>
        /// <param name="orderState">订单状态</param>
        public void SetOrderState(OrderState? orderState)
        {
            InitSearchParam(orderState == null); //初始化查询参数 orderState == null 全部
            this.OrderState = orderState;
            Task.Factory.StartNew(() => LoadOrder(1));  //选择状态查询订单
        }

        /// <summary>
        /// 初始化查询参数
        /// </summary>
        /// <param name="isInitDate"></param>
        private void InitSearchParam(bool isInitDate = false)
        {
            this.OrderState = null;
            SearchOrderId = string.Empty;
            SearchSku = string.Empty;
            SearchProductId = string.Empty;
            SearchClientOrderId = string.Empty;
            SearchSourceShopName = string.Empty;
            SearchSourceSku = string.Empty;
            if (isInitDate)
            {
                EndDate = DateTime.Now;
                StartDate = DateTime.Now.Date;
            }
            PageIndex = 1;
        }
    }
}