using System.Windows;

namespace NetTool.Client;

public partial class PasswordPromptWindow : Window
{
    private bool _isPasswordVisible;
    private bool _isSyncingPasswordText;

    public PasswordPromptWindow(string deviceLabel, string savedPassword)
    {
        InitializeComponent();
        PromptTextBlock.Text = $"请输入设备 {deviceLabel} 的管理密码。";
        PasswordBox.Password = savedPassword;
        PasswordTextBox.Text = savedPassword;
        ClearPasswordButton.Visibility = string.IsNullOrWhiteSpace(savedPassword) ? Visibility.Collapsed : Visibility.Visible;
        Loaded += (_, _) => PasswordBox.Focus();
    }

    public string Password => PasswordBox.Password;

    public bool ClearSavedPasswordRequested { get; private set; }

    private void OkButton_OnClick(object sender, RoutedEventArgs e)
    {
        if (string.IsNullOrWhiteSpace(PasswordBox.Password))
        {
            MessageBox.Show(this, "请输入管理密码。", "缺少管理密码", MessageBoxButton.OK, MessageBoxImage.Information);
            PasswordBox.Focus();
            return;
        }

        DialogResult = true;
    }

    private void CancelButton_OnClick(object sender, RoutedEventArgs e)
    {
        DialogResult = false;
    }

    private void ClearPasswordButton_OnClick(object sender, RoutedEventArgs e)
    {
        ClearSavedPasswordRequested = true;
        PasswordBox.Clear();
        PasswordTextBox.Clear();
        ClearPasswordButton.Visibility = Visibility.Collapsed;
        FocusPasswordInput();
    }

    private void TogglePasswordVisibilityButton_OnClick(object sender, RoutedEventArgs e)
    {
        _isPasswordVisible = !_isPasswordVisible;
        if (_isPasswordVisible)
        {
            PasswordTextBox.Text = PasswordBox.Password;
            PasswordTextBox.Visibility = Visibility.Visible;
            PasswordBox.Visibility = Visibility.Collapsed;
            ShowPasswordIcon.Visibility = Visibility.Collapsed;
            HidePasswordIcon.Visibility = Visibility.Visible;
            TogglePasswordVisibilityButton.ToolTip = "隐藏密码";
            PasswordTextBox.Focus();
            PasswordTextBox.CaretIndex = PasswordTextBox.Text.Length;
            return;
        }

        PasswordBox.Password = PasswordTextBox.Text;
        PasswordBox.Visibility = Visibility.Visible;
        PasswordTextBox.Visibility = Visibility.Collapsed;
        ShowPasswordIcon.Visibility = Visibility.Visible;
        HidePasswordIcon.Visibility = Visibility.Collapsed;
        TogglePasswordVisibilityButton.ToolTip = "查看密码";
        PasswordBox.Focus();
    }

    private void PasswordTextBox_OnTextChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
    {
        if (_isSyncingPasswordText)
        {
            return;
        }

        _isSyncingPasswordText = true;
        PasswordBox.Password = PasswordTextBox.Text;
        _isSyncingPasswordText = false;
    }

    private void FocusPasswordInput()
    {
        if (_isPasswordVisible)
        {
            PasswordTextBox.Focus();
            return;
        }

        PasswordBox.Focus();
    }
}