using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using BPASmart.Model;
using Microsoft.Toolkit.Mvvm.Input;
using System.Collections.ObjectModel;
using System.Windows.Forms;
using System.IO;
using BPA.Helper;
using System.Diagnostics;
using BeDesignerSCADA;
using BeDesignerSCADA.Controls;
using System.Windows;
using System.Reflection;
using System.Collections.Concurrent;

namespace BPASmart.ConfigurationSoftware
{
    public class MainWindowViewModel : NoticeBase
    {

        //public ushort CalcCRC(byte[] bytes)
        //{
        //    ushort uiCrcValue = 0xffff;
        //    ushort polynomial = 0x8408;
        //    for (int i = 0; i < bytes.Length; i++)
        //    {
        //        uiCrcValue = (ushort)(uiCrcValue ^ bytes[i]);
        //        for (int m = 0; m < 8; m++)
        //        {
        //            if ((uiCrcValue & 0x0001) == 1)
        //            {
        //                uiCrcValue = (ushort)((uiCrcValue >> 1) ^ polynomial);
        //            }
        //            else
        //            {
        //                uiCrcValue = (ushort)(uiCrcValue >> 1);
        //            }
        //        }
        //    }
        //    return uiCrcValue;
        //}

        //public byte[] GetCrc(ushort value, bool IsReverse = true)
        //{
        //    byte[] bytes = new byte[2];
        //    if (IsReverse)
        //    {
        //        bytes[0] = (byte)value;
        //        bytes[1] = (byte)(value >> 8);
        //    }
        //    else
        //    {
        //        bytes[1] = (byte)value;
        //        bytes[0] = (byte)(value >> 8);
        //    }
        //    return bytes;
        //}

        public MainWindowViewModel()
        {
            Init();
            ActionManage.GetInstance.Register(new Action<object>((o) =>
            {
                Pages.Add(o.ToString());
                string path = $"{ Json<ProjectModel>.Data.ProjectPath}\\{Global.PageDirectoryName}";
                Directory.CreateDirectory(path);
                File.WriteAllText($"{path}\\{o.ToString()}.lay", null, Encoding.Unicode);
                Json<ProjectModel>.Data.Pages.TryAdd(o.ToString(), $"{path}\\{o.ToString()}.lay");
            }), "AddPage");

            NewProjectCommand = new RelayCommand(() =>
            {
                NewProjectView newProjectView = new NewProjectView();
                bool? result = newProjectView.ShowDialog();
                if (result != null && result == true)
                {
                    if (newProjectView.Tag != null && newProjectView.Tag is NewDataModel objModel)
                    {
                        string path = $"{objModel.ProjectPath}\\{objModel.ProjectName}";
                        Directory.CreateDirectory(path);
                        Json<ProjectModel>.Data.ProjectPath = path;
                        Json<ProjectModel>.Data.ProjectName = objModel.ProjectName;
                        Head = objModel.ProjectName;
                        Save();
                        FileHelper.GetInstance.RegisterOpenFileType();
                    }
                }
            });

            NewPageCommand = new RelayCommand(() =>
            {
                NewPageView newPageView = new NewPageView();
                newPageView.ShowDialog();
            });

            OpenVarManagerCommand = new RelayCommand(() =>
            {
                Json<LocalPar>.Data.ProjectPath = Json<ProjectModel>.Data.ProjectPath;
                Json<LocalPar>.Save();
                if (File.Exists(Global.VarManagerPath))
                {
                    Process[] pro = Process.GetProcesses();
                    if (pro?.ToList().FirstOrDefault(p => p.ProcessName.Contains("BPASmart.VariableManager")) == null)
                    {
                        Process.Start(Global.VarManagerPath);
                    }
                }
            });

            SelectedPageCommand = new RelayCommand<object>((o) =>
            {
                string path = $"{Json<ProjectModel>.Data.ProjectPath}\\{Global.PageDirectoryName}\\{o.ToString()}.lay";
                if (mainCanvasPanels.FirstOrDefault(p => p.PageName == o.ToString()) == null)
                {
                    mainCanvasPanels.Add(new MainCanvasPageModel()
                    {
                        MainCanvasPanelModel = new MainCanvasPanel(path),
                        PageName = o.ToString(),
                    });
                }

                var res = mainCanvasPanels.FirstOrDefault(p => p.PageName == o.ToString());
                if (res != null)
                {
                    MainContent = res.MainCanvasPanelModel;
                }
            });

            SaveProjectCommand = new RelayCommand(() =>
            {
                for (int i = 0; i < mainCanvasPanels.Count; i++)
                {
                    mainCanvasPanels.ElementAt(i).MainCanvasPanelModel.FileSave();
                }
                Save();
            });
        }

        private void Init()
        {
            if (Json<ProjectModel>.Data.ProjectName != null && Json<ProjectModel>.Data.ProjectName.Length > 0)
            {
                Head = Json<ProjectModel>.Data.ProjectName;
            }

            if (Json<ProjectModel>.Data.Pages?.Count > 0)
            {
                for (int i = 0; i < Json<ProjectModel>.Data.Pages.Count; i++)
                {
                    Pages.Add(Json<ProjectModel>.Data.Pages.ElementAt(i).Key);
                }
            }

        }

        public void Save()
        {
            string path = Json<ProjectModel>.Data.ProjectPath;
            string name = Json<ProjectModel>.Data.ProjectName;
            var pages = Json<ProjectModel>.Data.Pages.OrderBy(p => p.Key).ToDictionary(p => p.Key, s => s.Value);
            if (pages != null) Json<ProjectModel>.Data.Pages = pages;
            Json<ProjectModel>.Save($"{path}\\{name}.project");
        }

        public RelayCommand NewProjectCommand { get; set; }

        public RelayCommand OpenVarManagerCommand { get; set; }

        public RelayCommand<object> SelectedPageCommand { get; set; }

        public RelayCommand SaveProjectCommand { get; set; }

        public RelayCommand NewPageCommand { get; set; }

        public string Head { get { return _mHead; } set { _mHead = value; OnPropertyChanged(); } }
        private string _mHead;

        public FrameworkElement MainContent { get { return _mMainContent; } set { _mMainContent = value; OnPropertyChanged(); } }
        private FrameworkElement _mMainContent;

        public List<MainCanvasPageModel> mainCanvasPanels { get; set; } = new List<MainCanvasPageModel>();

        public ObservableCollection<string> Pages { get; set; } = new ObservableCollection<string>();


    }
}