using System;
using System.ComponentModel;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;
using System.Windows;
using System.Net.Sockets;
using log4net;
using chatapi;
using System.Net.Http;
using Microsoft.Win32;


namespace chatclient
{
    /// <summary>
    /// LoginWindow.xaml 的交互逻辑
    /// </summary>
    public partial class LoginWindow : Window, INotifyPropertyChanged
    {
        private static readonly ILog log = LogManager.GetLogger(typeof(LoginWindow));
        public LoginWindow()
        {
            InitializeComponent();
            this.DataContext = this;
        }
        public event PropertyChangedEventHandler? PropertyChanged;
        private void Update(string UpdateName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(UpdateName));
        }
        public static string UserName { get; set; } = "";
        public static string UserPassword { get; set; } = "";
        public static string SignName { get; set; } = "";
        public static string SignPassword1 { get; set; } = "";
        public static string SignPassword2 { get; set; } = "";
        private string? _LoginMsg;
        public string? LoginMsg
        {
            get { return _LoginMsg; }
            set
            {
                _LoginMsg = value;
                Update("LoginMsg");
            }
        }
        private string? _SignMsg;
        public string? SignMsg
        {
            get { return _SignMsg; }
            set
            {
                _SignMsg = value;
                Update("SignMsg");
            }
        }
        private bool _SaveAccount;
        public bool SaveAccount
        {
            get { return _SaveAccount; }
            set
            {
                _SaveAccount = value;
                Update("SaveAccount");
            }
        }
        private void Login_Click(object sender, RoutedEventArgs e)
        {
            if (UserName == "")
            {
                LoginMsg = "用户名不能为空";
            }
            else if (UserPassword == "")
            {
                LoginMsg = "密码不能为空";
            }
            else
            {
                Login(false,UserName,UserPassword);
            }
        }
        private void Sign_Click(object sender, RoutedEventArgs e)
        {
            if (SignName == "")
            {
                SignMsg = "用户名不能为空";
            }
            else if (SignPassword1 == "")
            {
                SignMsg = "密码不能为空";
            }
            else if (SignPassword2 == "")
            {
                SignMsg = "请再次确认密码";
            }
            else if (SignPassword1 != SignPassword2)
            {
                SignMsg = "两次密码输入不一致";
            }
            else
            {
                log.Info($"向服务器发送注册HttpAPI请求(UserName:{SignName})");
                SignRegistryUser(SignName, SignPassword1).ContinueWith(task =>
                {
                    if (task.IsCompletedSuccessfully)
                    {
                        log.Info("注册请求发送成功");
                    }
                    else
                    {
                        log.Error("注册请求发送失败", task.Exception);
                    }
                });
            }
        }
        public static async Task SignRegistryUser(string Username, string Userpassword)
        {
            try
            {
                var SignData = new
                {
                    type = "register",
                    username = Username,
                    password = Userpassword
                };
                string SignJsonData = JsonSerializer.Serialize(SignData);
                byte[] dataBytes = Encoding.UTF8.GetBytes(SignJsonData);
                var content = new StringContent(SignJsonData, Encoding.UTF8, "application/json");
                var response = await MainWindow.HttpClient.PostAsync($"{chatapi.Server.ServerUrl}/api/register", content);
                var responseBody = await response.Content.ReadAsStringAsync();
                log.Info($"注册请求已发送，响应内容: {responseBody}");
                var signresponse = JsonSerializer.Deserialize<SignResultData>(responseBody);
                if (signresponse!.success)
                {
                        // 显示 MainWindow
                    Application.Current.Dispatcher.Invoke(() =>
                    {
                         var mainWindow = Application.Current.Windows
                            .OfType<MainWindow>()
                            .FirstOrDefault();
                        });
                    log.Info($"注册成功: {signresponse.message}");
                    Application.Current.Dispatcher.Invoke(() =>
                    {
                        Login(true, Username, Userpassword);
                    });
                }
                else
                {
                    log.Error($"注册失败: {signresponse.message}");
                    Application.Current.Dispatcher.Invoke(() =>
                    {
                        var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
                        loginWindow!.SignMsg = signresponse.message;
                    });
                }
            }
            catch (Exception ex)
            {
                log.Error("注册请求发送失败", ex);
            }
            finally
            {
                log.Info("注册请求已完成");
            }
         }
        //var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
        //loginWindow?.Close();
        public static void Login(bool Sign,string Username, string Userpassword)
        {
            if (Sign)
            {
                var LoginData = new
                {
                    type = "login",
                    username = Username,
                    password = Userpassword
                };
                string LoginJsonData = JsonSerializer.Serialize(LoginData);
                byte[] dataBytes = Encoding.UTF8.GetBytes(LoginJsonData);
                log.Info($"向服务器发送登录请求(UserName:{UserName})");
                if (MainWindow.Client is not null)
                {
                    if (MainWindow.Client.Connected)
                    {
                        MainWindow.Client.Send(dataBytes);
                    }
                    else
                    {
                        try
                        {
                            log.Info("未连接服务器，尝试连接");
                            MainWindow.Client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                            MainWindow.Client.Connect(System.Net.IPAddress.Parse(Server.ServerIP), Server.ServerPort);
                        }
                        catch (Exception ex)
                        {
                            log.Error(ex);
                            MainWindow.Client.Close();
                        }
                        finally
                        {
                            Application.Current.Dispatcher.Invoke(() =>
                            {
                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
                                loginWindow!.SignMsg = "在完成注册后与服务器断开连接\n请尝试在登录窗口重新登录";
                            });
                            //"服务器连接失败";
                        }
                    }
                }
            }
            else
            {
                var LoginData = new
                {
                    type = "login",
                    username = Username,
                    password = Userpassword
                };
                string LoginJsonData = JsonSerializer.Serialize(LoginData);
                byte[] dataBytes = Encoding.UTF8.GetBytes(LoginJsonData);
                log.Info($"向服务器发送登录请求(UserName:{UserName})");
                if (MainWindow.Client is not null)
                {
                    if (MainWindow.Client.Connected)
                    {
                        MainWindow.Client.Send(dataBytes);
                    }
                    else
                    {
                        try
                        {
                            log.Info("未连接服务器，尝试连接");
                            MainWindow.Client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                            MainWindow.Client.Connect(System.Net.IPAddress.Parse(Server.ServerIP), Server.ServerPort);
                        }
                        catch (Exception ex)
                        {
                            log.Error(ex);
                            MainWindow.Client.Close();
                        }
                        finally
                        {
                            Application.Current.Dispatcher.Invoke(() =>
                            {
                                var loginWindow = Application.Current.Windows.OfType<LoginWindow>().FirstOrDefault();
                                if (loginWindow != null)
                                {
                                    loginWindow.LoginMsg = "服务器连接失败";
                                }
                            });
                        }
                    }
                }
            }
        }
        public void Window_Loaded(object sender, RoutedEventArgs e)
        {
            // 窗口加载时可以进行一些初始化操作
            log.Info("登录窗口已加载");
            // 如果需要从配置文件或其他地方加载保存的账号信息，可以在这里实现
            // 例如：UserName = LoadSavedUsername();
            // Update("UserName");
        }
    }
}