using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit;
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Win32;
using ICSharpCode.AvalonEdit.CodeCompletion;
using TeamAAS_VP.Core;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TextBox;
using System.Windows.Documents;
using ICSharpCode.AvalonEdit.Document;
using TeamAAS_VP.Models;
using System.Collections.ObjectModel;
using System.Windows.Media;
using System.Text.RegularExpressions;
using System.Windows.Controls;
using ICSharpCode.AvalonEdit.Editing;
using System.Reflection;
using System.Threading.Tasks;
using System.ComponentModel;
using System.Windows.Input;
using System.IO;
using TeamAAS_VP;
using System.Windows;
using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro;
using MaterialDesignThemes.Wpf;
using TeamAAS_VP.Controls;
using TeamAAS_VP.Events;
using Prism.Events;
using Prism.Ioc;
using Prism.Regions;
using TouchSocket.Core;
using TeamAAS_VP.Resources.Languages;

namespace TeamAAS_VP.ViewModels.DebugMod
{
    public class ScriptHomeViewModel : BindableBase
    {
        IRegionManager _regionManager;
        IEventAggregator _eventAggregator;
        IContainerProvider _container;
        string _oldScript = "";
        string _oldFile = "";
        #region 属性

        private string _Scripting;

        public string Scripting
        {
            get { return _Scripting; }
            set { SetProperty(ref _Scripting, value); }
        }

        private string _ScriptingFilePath;

        public string ScriptingFilePath
        {
            get { return _ScriptingFilePath; }
            set { SetProperty(ref _ScriptingFilePath, value); }
        }

        private ObservableCollection<string> _ScriptFilesCollection;
        public ObservableCollection<string> ScriptFilesCollection
        {
            get { return _ScriptFilesCollection; }
            set { SetProperty(ref _ScriptFilesCollection, value); }
        }

        private string _SelectScript;
        public string SelectScript
        {
            get { return _SelectScript; }
            set { SetProperty(ref _SelectScript, value);
                if (!string.IsNullOrEmpty(value))
                {
                    IsSelected = true;
                }
                else
                {
                    IsSelected = false;
                }
            }
        }

        private bool _IsSelected=false;
        public bool IsSelected
        {
            get { return _IsSelected; }
            set { SetProperty(ref _IsSelected, value); }
        }
        #endregion

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

        private DelegateCommand _SaveScriptCommand;
        public DelegateCommand SaveScriptCommand =>
            _SaveScriptCommand ?? (_SaveScriptCommand = new DelegateCommand(ExecuteSaveScriptCommand));

        private DelegateCommand<string> _SelectScriptCommand;
        public DelegateCommand<string> SelectScriptCommand =>
            _SelectScriptCommand ?? (_SelectScriptCommand = new DelegateCommand<string>(ExecuteSelectScriptCommand));

        private DelegateCommand _CreateFileCommand;
        public DelegateCommand CreateFileCommand =>
            _CreateFileCommand ?? (_CreateFileCommand = new DelegateCommand(ExecuteCreateFileCommand));

        private DelegateCommand<string> _DelectFileCommand;
        public DelegateCommand<string> DelectFileCommand =>
            _DelectFileCommand ?? (_DelectFileCommand = new DelegateCommand<string>(ExecuteDelectFileCommand).ObservesCanExecute(()=> IsSelected));

        
        #endregion

        #region 事件

        #endregion

        public ScriptHomeViewModel(IRegionManager regionManager, IEventAggregator ea, IContainerProvider container)
        {
            _regionManager = regionManager;
            _eventAggregator = ea;
            _container = container;
        }

        #region 方法

        bool isFirst = true;
        void ExecuteLoadedCommand()
        {
            if (isFirst)
            {
                if (!Directory.Exists(FilePath.BackgroundScriptPath))
                {
                    Directory.CreateDirectory(FilePath.BackgroundScriptPath);
                }

                try
                {
                    string[] files = Directory.GetFiles(FilePath.BackgroundScriptPath);
                    ScriptFilesCollection=new ObservableCollection<string>();
                    foreach (string file in files)
                    {
                        string fileName = Path.GetFileName(file);
                        string fileExtension = Path.GetExtension(file);
                        if (fileExtension==".cs")
                        {
                            ScriptFilesCollection.Add(fileName);
                        }
                    }
                }
                catch (Exception ex)
                {
                    LogHelper.WriteLogError(Lang.读取本地脚本文件列表时出错,ex);
                }
                isFirst = false;
            }
            
        }

        /// <summary>
        /// 创建脚本
        /// </summary>
        async void ExecuteCreateFileCommand()
        {
            try
            {
                var view = new AddProduct() { Title = $"{Lang.创建脚本文件}:", Item = "Name" };

                //show the dialog
                var result = await DialogHost.Show(view, "RootDialog", null, null, null);
                if (result != null && !string.IsNullOrEmpty(result.ToString()))
                {
                    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;
                    }
                    //检查是否已有同名文件
                    var file = ScriptFilesCollection.FirstOrDefault(c => c == result.ToString() + ".cs");
                    if (file != null)
                    {
                        _eventAggregator.GetEvent<SnackbarMessageNotification>().Publish(new MessageParameter() { Msg = Lang.已存在同名脚本文件, Duration = 1 });
                        return;
                    }
                    if (File.Exists(FilePath.ScriptBackgroundTemplatePath))
                    {
                        File.Copy(FilePath.ScriptBackgroundTemplatePath, $"{FilePath.BackgroundScriptPath}//{result.ToString()}.cs");
                        await Task.Delay(200);
                    }
                    else
                    {
                        File.Create($"{FilePath.BackgroundScriptPath}//{result.ToString()}.cs");
                        await Task.Delay(200);
                    }
                    
                    ScriptFilesCollection.Add(result.ToString() + ".cs");
                    SelectScript = result.ToString() + ".cs";
                    Scripting = FileHelper.ReadFile($"{FilePath.BackgroundScriptPath}//{result.ToString()}.cs");
                    //ExecuteSelectScriptCommand(SelectScript);
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogError(Lang.创建脚本时出错, ex);
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 移除文件
        /// </summary>
        /// <param name="filename"></param>
        void ExecuteDelectFileCommand(string filename)
        {
            try
            {
                if (MessageBox.Show(Lang.是否移除脚本文件.Replace("{0}", filename),"",MessageBoxButton.OKCancel,MessageBoxImage.Question)== MessageBoxResult.OK)
                {
                    
                    var file = ScriptFilesCollection.FirstOrDefault(c => c == filename);
                    if (file != null)
                    {
                        Scripting = "";
                        _oldScript = Scripting;
                        ScriptFilesCollection.Remove(file);
                        SelectScript = null;
                        File.Delete($"{FilePath.BackgroundScriptPath}//{file}");
                    }
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogError(Lang.移除文件时出错, ex);
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 选中脚本文件时出错
        /// </summary>
        /// <param name="filename"></param>
        void ExecuteSelectScriptCommand(string filename)
        {
            try
            {
                
                if (!string.IsNullOrEmpty(_oldFile) && _oldFile != "" && !string.Equals(_oldScript, Scripting))
                {
                    if (MessageBox.Show(Lang.是否保存脚本, Lang.保存脚本, MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
                    {
                        FileHelper.WriteFile(Scripting, $"{FilePath.BackgroundScriptPath}//{_oldFile}");
                    }
                }
                else
                {
                    _oldFile = filename;
                }

                if (!string.IsNullOrEmpty(filename))
                {
                    ScriptingFilePath = $"{FilePath.BackgroundScriptPath}//{_oldFile}";
                    Scripting = FileHelper.ReadFile(ScriptingFilePath);
                    _oldScript = Scripting;
                }
                else
                {
                    ScriptingFilePath = string.Empty;
                    Scripting = string.Empty;
                    _oldScript = Scripting;
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLogError(Lang.选中脚本文件时出错, ex);
            }
        }

        void ExecuteSaveScriptCommand()
        {
            _oldScript = Scripting;
        }
        #endregion
    }
}