using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
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.Threading;

namespace SocketExample
{
    /// <summary>
    /// ClientWindow.xaml 的交互逻辑
    /// </summary>
    public partial class ClientWindow : Window
    {
        IPAddress ip;
        int port;
        TcpClient client;
        NetworkStream stream;
        Thread thread;
        public ClientWindow()
        {
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                ip = IPAddress.Parse(IPtextbox.Text);
                port = int.Parse(Porttextbox.Text);
                client = new TcpClient();

                // 开始监听
                client.Connect(ip, port);

                thread = new Thread(Recive);
                thread.IsBackground = true;
                thread.Start();
            }
            catch (Exception ex)
            {
                Dispatcher.Invoke(() =>
                {
                    InfoTextBlock_Client.Text += $"处理请求时出错: {ex.Message}\n";
                });
            }

        }

        private void Button_Click_Send(object sender, RoutedEventArgs e)
        {
            try
            {
                string message = MessageTextBox_Client.Text;
                // 如果发送"exit"则退出
                if (message.ToLower() == "exit")
                {
                    stream.Close();
                    client.Close();
                    thread.Abort();
                }
                else
                {
                    byte[] data = Encoding.UTF8.GetBytes(message);
                    stream.Write(data, 0, data.Length);
                }
            }
            catch (Exception ex)
            {
                Dispatcher.Invoke(() =>
                {
                    InfoTextBlock_Client.Text += $"处理请求时出错: {ex.Message}\n";
                });
            }
        }

        void Recive()
        {
            stream = client.GetStream();
            while (true)
            {
                // 处理客户端请求
                try
                {
                    // 接收响应
                    byte[] buffer = new byte[1024];
                    int bytesRead = stream.Read(buffer, 0, buffer.Length);
                    string response = Encoding.UTF8.GetString(buffer, 0, bytesRead);
                    Dispatcher.Invoke(() =>
                    {
                        this.InfoTextBlock_Client.Text += $"服务器响应: {response}\n";
                    });
                }
                catch (Exception ex)
                {
                    Dispatcher.Invoke(() =>
                    {
                        InfoTextBlock_Client.Text += $"处理请求时出错: {ex.Message}\n";
                    });
                }
            }
            // 关闭连接
        }
    }
}