using Newtonsoft.Json.Linq;
using PipeGallery.Correlator;
using PipeGallery.Manage;
using PipeGallery.ViewModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Threading;

namespace PipeGallery.View
{
    /// <summary>
    /// PipeLengthEditView.xaml 的交互逻辑
    /// </summary>
    public partial class PipeDiameterEditView : UserControl
    {
        private string _materialName = string.Empty;

        public PipeDiameterEditView(string materialName)
        {
            InitializeComponent();

            this.btnReturn.Click += btnReturn_Click;
            this.btnClose.Click += btnClose_Click;
            this.btnOK.Click += btnOK_Click;
            this.btnClear.Click += btnClear_Click;
            this.btnNum.Click += BtnNum_Click;
            this.btnCloseKb.Click += BtnCloseKb_Click;
            this.txtNum.GotFocus += TxtNum_GotFocus;
            this.txtNum.LostFocus += TxtNum_LostFocus;
            _materialName = materialName;
            rMaterialName.Text = _materialName;
            this.txtNum.PreviewTouchUp += TxtNum_PreviewTouchUp;
            this.txtNum.PreviewMouseUp += TxtNum_PreviewMouseUp;
            this.txtNum.KeyDown += txtNum_KeyDown;
        }

        private void TxtNum_PreviewMouseUp(object sender, MouseButtonEventArgs e)
        {
            HideInputPanel();
        }

        private void TxtNum_PreviewTouchUp(object sender, TouchEventArgs e)
        {
            HideInputPanel();
        }

        private void TxtNum_LostFocus(object sender, RoutedEventArgs e)
        {
            BtnCloseKb_Click(null, null);
        }

        private void TxtNum_GotFocus(object sender, RoutedEventArgs e)
        {
            bdrContent.Margin = new Thickness(0, 0, 0, 250);
            gridNumKeyboard.Visibility = Visibility.Visible;
            HideInputPanel();
        }

        private const Int32 WM_SYSCOMMAND = 274;
        private const UInt32 SC_CLOSE = 61536;
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool PostMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool PostMessage(IntPtr hWnd, int Msg, uint wParam, uint lParam);
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        //隐藏屏幕键盘
        void HideInputPanel()
        {
            /* 线程优化1  
            System.Threading.ThreadStart start = delegate ()
            {
                Thread.Sleep(500);
                IntPtr TouchhWnd = new IntPtr(0);
                TouchhWnd = FindWindow("IPTip_Main_Window", null);
                if (TouchhWnd == IntPtr.Zero)
                    return;
                PostMessage(TouchhWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
            };
            Thread t = new System.Threading.Thread(start);
            t.IsBackground = true;
            t.Start();
             */
            Task t = new Task(() =>
            {
                Thread.Sleep(500);
                IntPtr TouchhWnd = new IntPtr(0);
                TouchhWnd = FindWindow("IPTip_Main_Window", null);
                if (TouchhWnd == IntPtr.Zero)
                    return;
                PostMessage(TouchhWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
            });
            t.Start();

        }

        private void BtnCloseKb_Click(object sender, RoutedEventArgs e)
        {
            bdrContent.Margin = new Thickness(0, 0, 0, 0);
            gridNumKeyboard.Visibility = Visibility.Collapsed;
        }

        void btnReturn_Click(object sender, RoutedEventArgs e)
        {
            //SelectPipeRangeView selectPipeRangeView = new SelectPipeRangeView(_materialName);
            //Global.GetMainView().bdrPreposition.Child = selectPipeRangeView;

            SelectPipeMaterialView selectPipeMaterialView = new SelectPipeMaterialView();
            Global.GetMainView().bdrPreposition.Child = selectPipeMaterialView;
        }

        void btnClose_Click(object sender, RoutedEventArgs e)
        {
            Border bdr = this.Parent as Border;
            if (bdr != null)
            {
                bdr.Child = null;
            }
        }

        private void txtNum_KeyDown(object sender, KeyEventArgs e)
        {
            //过滤按键
            if ((e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || e.Key == Key.Decimal || (e.Key >= Key.D0 && e.Key <= Key.D9))
            {
                e.Handled = false;
            }
            else
            {
                e.Handled = true;
            }
        }

        void btnOK_Click(object sender, RoutedEventArgs e)
        {
            if (txtNum.Text == "")
            {
                new PopupWindow("管径不允许为空！", "警告").ShowDialog();
                return;
            }

            if (!Regex.IsMatch(txtNum.Text, "^([1-9][0-9]*)$"))
            {
                new PopupWindow("输入数据格式错误，请重新输入！", "警告").ShowDialog();
                txtNum.Text = "";
                return;
            }

            Correlator.CalculteSatus.diameterData = txtNum.Text;

            Border bdr = this.Parent as Border;
            if (bdr != null)
            {
                PipeLengthEditView pipeLengthEditView = new PipeLengthEditView(_materialName);
                bdr.Child = pipeLengthEditView;
            }
            
        }

        void btnClear_Click(object sender, RoutedEventArgs e)
        {
            this.txtNum.Text = "";
        }


        [DllImport("user32.dll", EntryPoint = "keybd_event", SetLastError = true)]
        public static extern void keybd_event(System.Windows.Forms.Keys bVk, byte bScan, uint dwFlags, uint dwExtraInfo);

        private void BtnNum_Click(object sender, RoutedEventArgs e)
        {
            Button btn = sender as Button;
            if (btn != null)
            {
                System.Windows.Forms.Keys key = System.Windows.Forms.Keys.Back;
                switch (btn.Content.ToString())
                {
                    case "0":
                        key = System.Windows.Forms.Keys.NumPad0;
                        break;
                    case "1":
                        key = System.Windows.Forms.Keys.NumPad1;
                        break;
                    case "2":
                        key = System.Windows.Forms.Keys.NumPad2;
                        break;
                    case "3":
                        key = System.Windows.Forms.Keys.NumPad3;
                        break;
                    case "4":
                        key = System.Windows.Forms.Keys.NumPad4;
                        break;
                    case "5":
                        key = System.Windows.Forms.Keys.NumPad5;
                        break;
                    case "6":
                        key = System.Windows.Forms.Keys.NumPad6;
                        break;
                    case "7":
                        key = System.Windows.Forms.Keys.NumPad7;
                        break;
                    case "8":
                        key = System.Windows.Forms.Keys.NumPad8;
                        break;
                    case "9":
                        key = System.Windows.Forms.Keys.NumPad9;
                        break;
                    case ".":
                        key = System.Windows.Forms.Keys.Decimal;
                        break;
                }
                keybd_event(key, 0, 0, 0);
            }
        }

        private void Grid_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            btnReturn.Focusable = true;
            btnReturn.Focus();
            btnReturn.Focusable = false;
        }
    }
}