using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Input;

namespace WarframeClock
{
    /// <summary>
    /// Interaction logic for StandaloneOverlayWindow.xaml
    /// </summary>
    public partial class StandaloneOverlayWindow : Window
    {
        private readonly OverlayWindowViewModel _vm;
        private bool _closing = false;

        public StandaloneOverlayWindow(OverlayWindowViewModel vm)
        {
            InitializeComponent();
            DataContext = _vm = vm;

            _vm.PropertyChanged += OnVmPropertyChanged;
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            base.OnClosing(e);

            if (!_closing)
            {
                e.Cancel = true;
                Hide();
            }
        }

        protected override void OnClosed(EventArgs e)
        {
            base.OnClosed(e);
            _vm.PropertyChanged -= OnVmPropertyChanged;
        }

        private void OnVmPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == nameof(OverlayWindowViewModel.Standalone) && !_vm.Standalone)
            {
                (App.Current.MainWindow = new OverlayWindow(_vm)).Show();
                _closing = true;
                Close();
            }
        }

        private void Window_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
                DragMove();
        }
    }
}