using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Threading;

namespace leak_test_project
{
    public partial class MainWindow : Window
    {
        private DispatcherTimer _timer;
        private bool _isClosingForcefully = false;

        public MainWindow()
        {
            InitializeComponent();
            StartClock();
            DisplayLoginInfo();
            this.Closing += MainWindow_Closing;
        }

        private void Window_ContentRendered(object sender, EventArgs e)
        {
            ShowLoginDialog();
        }

        private void ShowLoginDialog()
        {
            try
            {
                var loginWindow = new Housing.Login.StartupLoginWindow();
                loginWindow.Owner = this; // 소유자 지정으로 항상 위에 모달 형식으로 띄움
                if (loginWindow.ShowDialog() == true)
                {
                    App.LoginResult = loginWindow.Result;
                    DisplayLoginInfo();
                }
                else
                {
                    _isClosingForcefully = true;
                    this.Close(); // 로그인 취소 시 프로그램 종료
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, $"로그인 로드 실패: {ex.Message}", "오류", MessageBoxButton.OK, MessageBoxImage.Error);
                _isClosingForcefully = true;
                this.Close();
            }
        }

        private void DisplayLoginInfo()
        {
            if (App.LoginResult != null)
            {
                txtOperatorInfo.Text = App.LoginResult.Operator;
                txtModelInfo.Text = App.LoginResult.Model;
                txtLineInfo.Text = App.LoginResult.LineNo;
            }
            else
            {
                txtOperatorInfo.Text = "---";
                txtModelInfo.Text = "---";
                txtLineInfo.Text = "---";
            }
        }

        private void BtnLogout_Click(object sender, RoutedEventArgs e)
        {
            var result = MessageBox.Show(this, "로그아웃 하시겠습니까?", "로그아웃", MessageBoxButton.YesNo, MessageBoxImage.Question);
            if (result == MessageBoxResult.Yes)
            {
                App.LoginResult = null;
                DisplayLoginInfo();
                ShowLoginDialog();
            }
        }

        private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            if (_isClosingForcefully)
            {
                DisposeResources();
                return;
            }

            var result = MessageBox.Show(this, "프로그램을 종료하시겠습니까?", "종료 확인", MessageBoxButton.YesNo, MessageBoxImage.Question);
            if (result == MessageBoxResult.No)
            {
                e.Cancel = true;
                return;
            }

            DisposeResources();
        }

        private void DisposeResources()
        {
            // ViewModel의 Dispose를 호출하여 모든 통신 연결 해제
            if (this.DataContext is IDisposable disposable)
            {
                disposable.Dispose();
            }

            _timer?.Stop();
        }

        private void StartClock()
        {
            _timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
            _timer.Tick += (s, e) => UpdateDateTime();
            _timer.Start();
            UpdateDateTime();
        }

        private void UpdateDateTime()
        {
            string dayOfWeek = DateTime.Now.ToString("ddd");
            txtCurrentDateTime.Text = DateTime.Now.ToString($"yyyy-MM-dd [{dayOfWeek}] HH:mm:ss");
        }

        private void BtnMinimize_Click(object sender, RoutedEventArgs e)
        {
            this.WindowState = WindowState.Minimized;
        }

        private void BtnMaximize_Click(object sender, RoutedEventArgs e)
        {
            if (this.WindowState == WindowState.Maximized)
            {
                this.WindowState = WindowState.Normal;
                txtMaximizeIcon.Text = "1"; // Maximize icon
                btnMaximize.ToolTip = "최대화";
            }
            else
            {
                this.WindowState = WindowState.Maximized;
                txtMaximizeIcon.Text = "2"; // Restore icon
                btnMaximize.ToolTip = "창 모드";
            }
        }

        private void TopBar_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.ClickCount == 2)
            {
                BtnMaximize_Click(sender, e);
            }
            else
            {
                this.DragMove();
            }
        }
    }
}