bbwy/BBWY.Client/ViewModels/Order/ChoosePurchaseSchemeViewModel.cs

using BBWY.Client.APIServices;
using BBWY.Client.Models;
using BBWY.Common.Models;
using GalaSoft.MvvmLight.Command;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;

namespace BBWY.Client.ViewModels
{
    public class ChoosePurchaseSchemeViewModel : BaseVM, IDenpendency
    {
        private PurchaseService purchaseService;
        private GlobalContext globalContext;
        private BindingPurchaseProductViewModel bindingPurchaseProduct;
        public string SkuId { get; set; }
        public string SkuName { get; set; }
        public IList<PurchaseScheme> PurchaseSchemeList { get; set; }


        public ICommand DeleteCommand { get; set; }
        public ICommand EditCommand { get; set; }

        public ChoosePurchaseSchemeViewModel(PurchaseService purchaseService, GlobalContext globalContext, BindingPurchaseProductViewModel bindingPurchaseProduct)
        {
            this.purchaseService = purchaseService;
            this.globalContext = globalContext;
            this.bindingPurchaseProduct = bindingPurchaseProduct;
            PurchaseSchemeList = new ObservableCollection<PurchaseScheme>();
            DeleteCommand = new RelayCommand<PurchaseScheme>(Delete);
            EditCommand = new RelayCommand<PurchaseScheme>(Edit);
        }

        protected override void Load()
        {
            PurchaseSchemeList.Clear();
            Task.Factory.StartNew(() => purchaseService.GetPurchaseSchemeList(new string[] { SkuId }, globalContext.User.Shop.ShopId)).ContinueWith(t =>
             {
                 var r = t.Result;
                 if (!r.Success)
                 {
                     App.Current.Dispatcher.Invoke(() => MessageBox.Show(r.Msg, "获取采购方案"));
                     return;
                 }

                 App.Current.Dispatcher.Invoke(() =>
                 {
                     foreach (var apiModel in r.Data) PurchaseSchemeList.Add(PurchaseScheme.Convert(apiModel));
                 });
             });
        }

        protected override void Unload()
        {
            this.SkuId = this.SkuName = string.Empty;
            PurchaseSchemeList.Clear();
        }

        public void SetData(string skuId, string skuName)
        {
            this.SkuId = skuId;
            this.SkuName = skuName;
        }

        public void Delete(PurchaseScheme purchaseScheme)
        {
            Task.Factory.StartNew(() => purchaseService.DeletePurchaseScheme(purchaseScheme.Id)).ContinueWith(r =>
            {
                var response = r.Result;
                if (response.Success)
                    App.Current.Dispatcher.Invoke(() => PurchaseSchemeList.Remove(purchaseScheme));
                else
                    App.Current.Dispatcher.Invoke(() => MessageBox.Show(response.Msg, "删除采购方案"));
            });
        }

        public void Edit(PurchaseScheme purchaseScheme)
        {
            var skuList = new List<ProductSku>()
            {
                 new ProductSku(){ Id=purchaseScheme.SkuId,ProductId=purchaseScheme.ProductId, Title=SkuName}
            };
            bindingPurchaseProduct.SetData(skuList, purchaseScheme.PurchaserId, purchaseScheme.PurchaserName);
            var bindingView = new Views.Ware.BindingPurchaseProduct();
            var r = bindingView.ShowDialog();
        }
    }
}