using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using TeamAAS_VP.Events;
using TeamAAS_VP.Core;
using TeamAAS_VP.Models;

namespace TeamAAS_VP.ViewModels
{
    public class ProductsViewModel : BindableBase
    {
        IRegionManager _regionManager;
        IEventAggregator _eventAggregator;
        IContainerProvider _container;
        IDialogService _dialogService;
        #region 属性
        private ObservableCollection<ProductModel> _Products;

        /// <summary>
        /// 产品列表
        /// </summary>
        public ObservableCollection<ProductModel> Products
        {
            get { return _Products; }
            set { SetProperty(ref _Products,value); }
        }

        private ProductModel _SelectProduct;

        /// <summary>
        /// 选中的产品
        /// </summary>
        public ProductModel SelectProduct
        {
            get { return _SelectProduct; }
            set { SetProperty(ref _SelectProduct, value); }
        }

        private Management _management;

        public Management management
        {
            get { return _management; }
            set { SetProperty(ref _management, value); }
        }

        #endregion

        #region 命令
        private DelegateCommand _LoadedCommand;
        public DelegateCommand LoadedCommand =>
            _LoadedCommand ?? (_LoadedCommand = new DelegateCommand(ExecuteLoadedCommand));

        
        #endregion

        #region 事件

        #endregion

        public ProductsViewModel(IRegionManager regionManager, IEventAggregator ea, IContainerProvider container, IDialogService dialogService)
        {
            _regionManager = regionManager;
            _eventAggregator = ea;
            _container = container;
            _dialogService = dialogService;
            management= _container.Resolve<Management>();
            Products = management.Products;
            //订阅权限登录事件
            _eventAggregator.GetEvent<UserLoginNotification>().Subscribe(LoginChange);
        }

        #region 方法
        bool isFirstShow = false;
        void ExecuteLoadedCommand()
        {
            if (!isFirstShow)
            {
                _regionManager.RequestNavigate("ProductRegionContext", "ProductHome");
                isFirstShow = true;
            }
        }
        #endregion

        private void LoginChange(Models.User user)
        {

        }
    }
}