using CoreScanner;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Automation;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Xml;

namespace SafeBagDE70
{
    /// <summary>
    /// Interaction logic for WelcomeWindow.xaml
    /// </summary>
    public partial class WelcomeUC : UserControl
    {
        public string? QRCodeContent = null;
        public string? PinCode = null;
        public bool IsAuthenticated = false;
        public CCoreScannerClass? cCoreScannerClass=null;
        public WelcomeUC()
        {
            InitializeComponent();
            InitQRCodeScanner();
            Loaded += WelcomeUC_Loaded;
        }

        private void WelcomeUC_Loaded(object sender, RoutedEventArgs e)
        {
            AppData.IsAuthenticated = false;
        }
        public void Init()
        {
            AppData.IsAuthenticated = false;
            AppData.CurrentCustomerAccount = null;
            lblPincodeError.Content = "";
            PinCodeBox.Text = "";
        }

        private void LoginButton_Click(object sender, RoutedEventArgs e)
        {

            string pin = PinCodeBox.Text;

            if (ValidatePin(pin))
            {
                PinCode=PinCodeBox.Text.ToString();
                if (AppData.customerAccounts != null)
                {
                    CustomerAccount? cca = null;
                    if (PinCode != null)
                    {
                        var strPincode = PinCode.ToUpper();
                        cca = AppData.customerAccounts.Where(x => x.PINCode == strPincode).FirstOrDefault();
                    }

                    if (cca != null)
                    {
                        AppData.IsAuthenticated=true;
                        AppData.CurrentCustomerAccount=cca;
                        ((MainWindow)Application.Current.MainWindow).ShowDepositScreen();
                        //DialogResult = true;
                        //this.Close();
                    }
                    else
                    {
                        lblPincodeError.Content = "PINCODE không đúng, vui lòng thử lại";
                    }
                }
            }
            else
            {
                MessageBox.Show("Invalid PIN. Please try again.");
            }
        }

        private void ForgotPin_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Forgot PIN clicked.");
        }

        private void Help_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Help clicked.");
        }

        private bool ValidatePin(string pin)
        {
            return true;

        }
        private async void PinCodeButton_Click(object sender, RoutedEventArgs e)
        {
            var onScreenKeyboardProcess = new ProcessStartInfo("osk.exe")
            {
                UseShellExecute = true
            };
            try
            {
                //var progFiles = @"C:\Program Files\Common Files\Microsoft Shared\ink";
                //var keyboardPath = System.IO.Path.Combine(progFiles, "TabTip.exe");
                //Process.Start(keyboardPath);
                // AutomationElement.FromHandle(-1);

                // string keyboardPath = @"C:\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe";
                // Process.Start(keyboardPath);
                //await Launcher.LaunchUriAsync(new Uri("ms-inputapp://"));

                //var onScreenKeyboardProcess = new ProcessStartInfo(@"C:\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe")
                //{
                //    UseShellExecute = true
                //};
                //Process.Start(onScreenKeyboardProcess);

                QrCodePanel.Visibility = Visibility.Collapsed;
                PinCodePanel.Visibility = Visibility.Visible;


                cCoreScannerClass.BarcodeEvent -= new _ICoreScannerEvents_BarcodeEventEventHandler(OnBarcodeEvent);
            }
            catch { 

            }
     
        }
        private void btnQRCodeLogin_Click(object sender, RoutedEventArgs e)
        {
            PinCodePanel.Visibility = Visibility.Collapsed;
            QrCodePanel.Visibility=Visibility.Visible;
            cCoreScannerClass.BarcodeEvent += new _ICoreScannerEvents_BarcodeEventEventHandler(OnBarcodeEvent);


        }
        public void InitQRCodeScanner()
        {
            try
            {
                // Instantiate CoreScanner Class
                cCoreScannerClass = new CCoreScannerClass();

                // Call Open API
                short[] scannerTypes = new short[1];    // Scanner Types you are interested in
                scannerTypes[0] = 1;                    // 1 for all scanner types
                short numberOfScannerTypes = 1;         // Size of the scannerTypes array 
                int status;                             // Extended API return code

                cCoreScannerClass.Open(0, scannerTypes, numberOfScannerTypes, out status);

                // Subscribe for barcode events in cCoreScannerClass
               

                // Let's subscribe for events
                int opcode = 1001;  // Method for Subscribe events 
                string outXML;      // XML Output
                string inXML = "<inArgs>" +
                                    "<cmdArgs>" +
                                        "<arg-int>1</arg-int>" + // Number of events you want to subscribe
                                        "<arg-int>1</arg-int>" + // Comma separated event IDs
                                    "</cmdArgs>" +
                "</inArgs>";

                cCoreScannerClass.ExecCommand(opcode, ref inXML, out outXML, out status);
            }
            catch (Exception exp)
            {
                Console.WriteLine("Something wrong please check... " + exp.Message);
            }
        }
        private void OnBarcodeEvent(short eventType, ref string pscanData)
        {
            string xmlString = pscanData;
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml(xmlString);

            XmlNode rawDataNode = xmlDoc.SelectSingleNode("//datalabel");
            string rawDataHex = rawDataNode.InnerText.Trim();

            QRCodeContent = HexStringToString(rawDataHex);
            this.Dispatcher.Invoke(() =>
            {
               

                if (AppData.customerAccounts != null)
                {
                    CustomerAccount? cca = null;
                    if (QRCodeContent != null)
                    {
                        cca = AppData.customerAccounts.Where(x => x.QRCode == QRCodeContent).FirstOrDefault();
                    }

                    if (cca != null)
                    {
                        cCoreScannerClass.BarcodeEvent -= new _ICoreScannerEvents_BarcodeEventEventHandler(OnBarcodeEvent);
                        AppData.IsAuthenticated = true;
                        AppData.CurrentCustomerAccount = cca;
                        ((MainWindow)Application.Current.MainWindow).ShowDepositScreen();
                    }
                    else
                    {
                        lblQRcodeError.Content = "QRCODE không đúng, vui lòng thử lại";
                    }
                }

            });
        }

        static string HexStringToString(string hexString)
        {
            string[] hexValues = hexString.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
            byte[] bytes = new byte[hexValues.Length];

            for (int i = 0; i < hexValues.Length; i++)
            {
                bytes[i] = Convert.ToByte(hexValues[i], 16);
            }
            return Encoding.ASCII.GetString(bytes);
        }
    }
}