using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using MahApps.Metro.Controls.Dialogs;
using MaterialDesignThemes.Wpf;
using NPOI.SS.Formula.Functions;
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 System.Threading.Tasks;
using System.Windows;
using TeamAAS_VP;
using TeamAAS_VP.Controls;
using TeamAAS_VP.Core;
using TeamAAS_VP.Core.Cameras;
using TeamAAS_VP.Events;
using TeamAAS_VP.Interfaces;
using TeamAAS_VP.Models;
using TeamAAS_VP.Models.Feeder;
using TeamAAS_VP.Models.Product;
using TeamAAS_VP.Resources.Languages;
using TeamAAS_VP.Services;
using static MaterialDesignThemes.Wpf.Theme.ToolBar;
using static NPOI.HSSF.Util.HSSFColor;

namespace TeamAAS_VP.ViewModels.Product
{
    public class ProductProcessManageViewModel : BindableBase, IConfirmNavigationRequest
    {
        IRegionManager _regionManager;
        IEventAggregator _eventAggregator;
        IContainerProvider _container;
        IDialogService _dialogService;
        IConfigService _configService;
        ISystemDatabaseService _systemDatabaseService;

        #region 属性

        private ProductModel _SelectProduct;

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

        private ProcedureModel _SelectedProcedure;
        public ProcedureModel SelectedProcedure
        {
            get { return _SelectedProcedure; }
            set { SetProperty(ref _SelectedProcedure, value); }
        }

        private object _SelectNote;

        public object SelectNote
        {
            get { return _SelectNote; }
            set { SetProperty(ref _SelectNote,value); }
        }

        private bool CanCreate
        {
            get
            {
                if (SelectNote!=null && SelectNote is CameraProcedure)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
        }

        private bool CanRemove
        {
            get
            {
                if (SelectNote != null && SelectNote is ProcedureModel)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
        }
        #endregion

        #region 命令
        private DelegateCommand _NextCommand;
        public DelegateCommand NextCommand =>
            _NextCommand ?? (_NextCommand = new DelegateCommand(ExecuteNextCommand));

        private DelegateCommand _BackCommand;
        public DelegateCommand BackCommand =>
            _BackCommand ?? (_BackCommand = new DelegateCommand(ExecuteBackCommand));

        private DelegateCommand<object> _AddProProcessCommand;
        public DelegateCommand<object> AddProProcessCommand =>
            _AddProProcessCommand ?? (_AddProProcessCommand = new DelegateCommand<object>(ExecuteAddProProcessCommand).ObservesCanExecute(()=> CanCreate).ObservesProperty(()=> SelectNote));

        private DelegateCommand<object> _RemoveProProcessCommand;
        public DelegateCommand<object> RemoveProProcessCommand =>
            _RemoveProProcessCommand ?? (_RemoveProProcessCommand = new DelegateCommand<object>(ExecuteRemoveProProcessCommand).ObservesCanExecute(() => CanRemove).ObservesProperty(() => SelectNote));

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

        
        
        #endregion

        #region 事件

        #endregion

        public ProductProcessManageViewModel(IRegionManager regionManager, IEventAggregator ea, IContainerProvider container, IDialogService dialogService,
            IConfigService configService,ISystemDatabaseService systemDatabaseService)
        {
            _regionManager = regionManager;
            _eventAggregator = ea;
            _container = container;
            _dialogService = dialogService;
            _configService = configService;
            _systemDatabaseService = systemDatabaseService;
            //订阅权限登录事件
            _eventAggregator.GetEvent<UserLoginNotification>().Subscribe(LoginChange);
        }

        #region 方法

        /// <summary>
        /// 下一步
        /// </summary>
        void ExecuteNextCommand()
        {
            NavigationParameters param = new NavigationParameters();
            param.Add("SelectProduct", SelectProduct);
            param.Add("SelectedProcedure", SelectedProcedure);
            _regionManager.RequestNavigate("ProductRegionContext", "ProcessBasics", param);
        }

        void ExecuteBackCommand()
        {
            NavigationParameters param = new NavigationParameters();
            param.Add("SelectProduct", SelectProduct);
            _regionManager.RequestNavigate("ProductRegionContext", "ProductDescription", param);
        }

        /// <summary>
        /// 新建流程
        /// </summary>
        async void ExecuteAddProProcessCommand(object SelectedItem)
        {
            try
            {
                if (SelectedItem is CameraProcedure)
                {
                    string cameraname = (SelectedItem as CameraProcedure).Camera;
                    var view = new AddProduct() { Title = $"{Lang.创建流程}:", Item = "Name" };

                    //show the dialog
                    var result = await DialogHost.Show(view, "RootDialog", ExtendedOpenedEventHandler, ExtendedClosingEventHandler, ExtendedClosedEventHandler);
                    if (result != null && !string.IsNullOrEmpty(result.ToString()))
                    {
                        string procedureName = result.ToString().Trim();
                        if (!FileHelper.CheckFileName(result.ToString()))
                        {
                            _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = Lang.输入的名称不符合文件名命名规则, Duration = 1 });
                            return;
                        }
                        //检查是否已有同名流程
                        var procedureList = SelectProduct.CameraProcedures.FirstOrDefault(c => c.Camera == cameraname); //获取指定相机的流程集合
                        if (procedureList == null)
                        {
                            _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg =Lang.没有找到相机.Replace("{0}", cameraname), Duration = 1 });
                            return;
                        }
                        var procedure = procedureList.ProcedureModels.FirstOrDefault(p => p.Name == $"{SelectProduct.Name}-{cameraname}-{procedureName}");
                        if (procedure == null)
                        {
                            //创建新流程
                            var procedureModel = new ProcedureModel()
                            {
                                Name = $"{procedureName}",
                                CameraId = ((CameraProcedure)SelectedItem).ID,
                                CameraName = ((CameraProcedure)SelectedItem).Camera,
                                ExposureTime = 5000,
                                Gain = 0,
                                Id = Guid.NewGuid(),
                                VisionModel = Enums.VisionModel.Simple,
                                TriggerCommand = $"{cameraname}_{procedureName}",
                                FeederWorks = new FeederWorks() { FeederWorkList = new ObservableCollection<FeederWork>() },
                                FeederStockWorks = new FeederStockWorks() { FeederWorkList = new ObservableCollection<FeederWork>(), FeederStockWorkList = new ObservableCollection<FeederStockWork>() },
                                ProcedureOutputs = new ObservableCollection<ProcedureOutput>(),
                                ToolInfo = new ObservableCollection<ToolInfo>(),
                                MinArea = 100,
                                LightValue = 20,
                                WaitPhoto = 200,
                                WaitFeederStop = 2000,
                                FeederFailLimit = 5,
                                OutputPointCountMax = 8,
                                IsExcludeNearPoint=false,
                                ExcludeNearPointThreshol=1,
                                OutputSeparator=";",
                                ToolBlock = VisionProFileHelper.LoadObjectFromFileSafe<CogToolBlock>(FilePath.SimpleProcedurePath),
                                FeederFindFrequency = new FeederFrequencyModel(11)
                            };
                            var waiting = new WaitingControl();
                            //show the dialog
                            var task = DialogHost.Show(waiting, "RootDialog", null, null, null);
                            await Task.Run(() =>
                            {
                                procedureModel.ToolBlock = VisionProFileHelper.LoadObjectFromFileSafe<CogToolBlock>(ProductService.TemplateToolBlock);
                            });
                            if (DialogHost.IsDialogOpen("RootDialog"))
                            {
                                DialogHost.Close("RootDialog");
                            }
                            await task;

                            procedureModel.FeederWorks.Add(new FeederWork() { Function = Enums.VibrationFunction.I, Step = 0, Duration = 500 });
                            procedureModel.FeederStockWorks.FeederWorkList.Add(new FeederWork() { Function = Enums.VibrationFunction.J, Step = 0, Duration = 500 });
                            procedureModel.FeederStockWorks.FeederStockWorkList.Add(new FeederStockWork() { Step = 0, Function = Enums.VibrationFunction.A, Duration = 500 });
                            procedureList.AddProcedure(procedureModel);
                        }
                        else
                        {
                            _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = Lang.流程已存在, Duration = 1 });
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogError(Lang.流程界面新建流程时出错, ex);
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 移除流程
        /// </summary>
        /// <param name="SelectedItem"></param>
        void ExecuteRemoveProProcessCommand(object SelectedItem)
        {
            try
            {
                if (SelectedItem is ProcedureModel)
                {
                    var procedureId = (SelectedItem as ProcedureModel).Id;
                    if (MessageBox.Show(Lang.是否移除流程.Replace("{0}", (SelectedItem as ProcedureModel).Name) , Lang.移除流程, MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
                    {
                        ProcedureModel procedure = SelectedItem as ProcedureModel;
                        var procedureList = SelectProduct.CameraProcedures.FirstOrDefault(c => c.Camera == procedure.CameraName); //获取指定相机的流程集合
                        if (procedureList == null)
                        {
                            _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = Lang.没有找到相机.Replace("{0}", procedure.CameraName), Duration = 1 });
                            return;
                        }
                        if (((ProcedureModel)SelectedItem).ToolBlock != null)
                        { 
                           ((ProcedureModel)SelectedItem).ToolBlock.Dispose();
                        }
                        procedureList.RemoveProcedure(procedure);
                    }
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogError(Lang.流程界面移除流程时出错, ex);
                MessageBox.Show(ex.Message);
            }
        }

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

        private void ExtendedOpenedEventHandler(object sender, DialogOpenedEventArgs eventArgs)
        {

        }

        private void ExtendedClosingEventHandler(object sender, DialogClosingEventArgs eventArgs)
        {

        }

        private void ExtendedClosedEventHandler(object sender, DialogClosedEventArgs eventArgs)
        {

        }

        public void TreeView_SelectedItemChanged(object sender, System.Windows.RoutedPropertyChangedEventArgs<object> e)
        {
            SelectNote=e.NewValue;
            if (e.NewValue is ProcedureModel)
            {
                SelectedProcedure = e.NewValue as ProcedureModel;
            }
            else
            {
                SelectedProcedure = null;
            }
        }
        #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)
        {

            SelectProduct = navigationContext.Parameters.GetValue<ProductModel>("SelectProduct");
            if (navigationContext.Parameters.ContainsKey("SelectedProcedure"))
            {
                SelectedProcedure= navigationContext.Parameters.GetValue<ProcedureModel>("SelectedProcedure");
            }

            //遍历所有的相机集合，确保所有的相机是意义对应的，为了解决，产品已经创建过，但是当新的相机配置后，产品没能更新过来新增的相机。
            foreach (var item in _configService.GetAllCameras())
            {
                var camera = SelectProduct.CameraProcedures.FirstOrDefault(cam => cam.ID == item.Id);
                if (camera == null)
                {
                    SelectProduct.CameraProcedures.Add(new CameraProcedure() { Camera = item.CameraName, ID = item.Id, ProcedureModels = new ObservableCollection<ProcedureModel>() });
                }
            }
            List<Guid> invalidCamera = new List<Guid>();
            foreach (var item in SelectProduct.CameraProcedures)
            {
                var camera = _configService.GetAllCameras().FirstOrDefault(cam => cam.Id == item.ID);
                if (camera == null)
                {
                    invalidCamera.Add(item.ID);
                }
            }
            foreach (var item in invalidCamera)
            {
                var camera = SelectProduct.CameraProcedures.FirstOrDefault(cam => cam.ID == item);
                SelectProduct.CameraProcedures.Remove(camera);
            }
        }

        /// <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

        private bool _IsAllowEdit = false;

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

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