bbwy/BBWY.Client/ViewModels/BatchPurchase/BatchPurchaseAddProductSkuViewModel.cs

using BBWY.Client.APIServices;
using BBWY.Client.Models;
using GalaSoft.MvvmLight.Command;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Windows.Input;

namespace BBWY.Client.ViewModels
{
    public class BatchPurchaseAddProductSkuViewModel : BaseVM
    {
        private BatchPurchaseService batchPurchaseService;
        private string sku;
        private string spu;
        private Purchaser selectedPurchaser;
        private Purchaser defaultPurchaser;

        private KVModel selectedPurchasePlatform;
        private KVModel defaultPurchasePlatform;

        public ICommand SearchCommand { get; set; }
        public ICommand FilterCommand { get; set; }

        public string Sku { get => sku; set { Set(ref sku, value); } }
        public string Spu { get => spu; set { Set(ref spu, value); } }

        public IList<Purchaser> PurchaserList { get; set; }
        public IList<KVModel> PurchasePlatformList { get; set; }
        public Purchaser SelectedPurchaser
        {
            get => selectedPurchaser; set
            {
                if (Set(ref selectedPurchaser, value))
                    OnFilterChanged();
            }
        }

        public KVModel SelectedPurchasePlatform
        {
            get => selectedPurchasePlatform; set
            {
                if (Set(ref selectedPurchasePlatform, value))
                    OnFilterChanged();
            }
        }

        public IList<ProductSkuWithScheme> SourceList { get; set; }
        public IList<ProductSkuWithScheme> FilterList { get; set; }

        public BatchPurchaseAddProductSkuViewModel(BatchPurchaseService batchPurchaseService)
        {
            this.batchPurchaseService = batchPurchaseService;
            defaultPurchaser = new Purchaser() { Id = "-1", Name = "全部" };
            defaultPurchasePlatform = new KVModel() { Key = "-1", Value = "全部" };

            PurchaserList = new ObservableCollection<Purchaser>() { defaultPurchaser };
            PurchasePlatformList = new ObservableCollection<KVModel>()
            {
                defaultPurchasePlatform,
                new KVModel(){ Key=((int)Platform.拳探).ToString(),Value = Platform.拳探.ToString() },
                new KVModel(){ Key=((int)Platform.阿里巴巴).ToString(),Value = Platform.阿里巴巴.ToString() }
            };

            SourceList = new List<ProductSkuWithScheme>();
            FilterList = new List<ProductSkuWithScheme>();
            SelectedPurchaser = PurchaserList[0];
            SelectedPurchasePlatform = PurchasePlatformList[0];
            SearchCommand = new RelayCommand(Search);
            FilterCommand = new RelayCommand(Filter);
        }

        private void OnFilterChanged()
        {
            if (SourceList.Count() == 0)
                return;
            FilterList.Clear();
            var resultList = new List<ProductSkuWithScheme>();
            resultList.AddRange(SourceList);

            if (SelectedPurchaser.Id != "-1")
            {
                for (var i = 0; i < resultList.Count(); i++)
                {
                    if (resultList[i].PurchaserId != SelectedPurchaser.Id)
                    {
                        resultList.Remove(resultList[i]);
                        i--;
                    }
                }
            }

            if (SelectedPurchasePlatform.Key != "-1")
            {
                for (var i = 0; i < resultList.Count(); i++)
                {
                    if (resultList[i].PurchasePlatform != (Platform)int.Parse(SelectedPurchasePlatform.Key))
                    {
                        resultList.Remove(resultList[i]);
                        i--;
                    }
                }
            }

            if (resultList.Count() > 0)
            {
                foreach (var item in resultList)
                    FilterList.Add(item);
            }
        }

        private void Search()
        {

        }

        private void Filter()
        {

        }
    }
}