using Prism.Commands;
using Prism.Events;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using Team.FFFeederService;
using Team.FFFeederService.Interfaces;
using TeamAAS_VP.Core;
using TeamAAS_VP.Events;
using TeamAAS_VP.Interfaces;

namespace TeamAAS_VP.ViewModels.DebugMod
{
    public class AfagFeederManualViewModel : BindableBase, IConfirmNavigationRequest
    {
        IContainerProvider _container;
        IEventAggregator _eventAggregator;
        IFeederService _feederService;
        ISystemDatabaseService _systemDatabaseService;

        #region 属性

        public Management management { get; set; }

        private AfagFeeder _Feeder;

        public AfagFeeder Feeder
        {
            get { return _Feeder; }
            set
            {
                SetProperty(ref _Feeder, value);
                FeederChangedEvent?.Invoke(value);
            }
        }

        private bool _IsAllowEdit = false;

        public bool IsAllowEdit
        {
            get { return _IsAllowEdit; }
            set { SetProperty(ref _IsAllowEdit, value); }
        }
        #endregion

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

        #endregion

        #region 事件
        public event Action<AfagFeeder> FeederChangedEvent;
        #endregion

        public AfagFeederManualViewModel(IContainerProvider container, IEventAggregator ea, IFeederService feederService, ISystemDatabaseService systemDatabaseService)
        {
            _container = container;
            _feederService = feederService;
            _eventAggregator = ea;
            _systemDatabaseService = systemDatabaseService;
            //订阅权限登录事件
            _eventAggregator.GetEvent<UserLoginNotification>().Subscribe(LoginChange);
        }

        #region 方法
        void ExecuteLoadedCommand()
        {
            
        }

        private void LoginChange(Models.User user)
        {
            if (user.userPart == Enums.UserPart.Operator)
            {
                IsAllowEdit = false;
            }
            else
            {
                IsAllowEdit = true;
            }
        }
        #endregion

        #region 继承
        /// <summary>
        /// 确认导航请求时调用。此方法允许您在导航之前执行一些操作。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <param name="continuationCallback"></param>
        public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
        {
            continuationCallback(true);
        }

        /// <summary>
        /// 接收导航请求时调用。传入导航参数，包含有关导航目标的信息。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <exception cref="NotImplementedException"></exception>
        public async void OnNavigatedTo(NavigationContext navigationContext)
        {
            var feederInfo = navigationContext.Parameters["FeederInfo"] as Models.FeederInfo;
            if (feederInfo != null)
            {
                Feeder = _feederService.GetFeeder(feederInfo.Id) as AfagFeeder;
            }

            if (_systemDatabaseService.GetCurrentUser().userPart == Enums.UserPart.Operator)
            {
                IsAllowEdit = false;
            }
            else
            {
                IsAllowEdit = true;
            }
        }

        /// <summary>
        /// 是否允许导航到此视图模型。
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <returns></returns>
        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        /// <summary>
        /// 导航离开此视图模型时调用。您可以在此处执行清理操作或保存状态。
        /// </summary>
        /// <param name="navigationContext"></param>
        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }
        #endregion
    }
}