using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using System.Windows;
using System.Windows.Controls;
using HMI.Base;
using HMI.Core.Api;
using WPFProject.UI;

namespace WPFProject.Controls
{
    /// <summary>
    /// MainTabControl.xaml 的交互逻辑
    /// </summary>
    public partial class MainTabControl : UserControl, INotifyPropertyChanged
    {
        #region ...
        public virtual event PropertyChangedEventHandler PropertyChanged;

        protected virtual void RaisePropertyChanged(string name)
        {

            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
        }

        protected void RaiseAndSetIfChanged<T>(ref T old, T @new, [CallerMemberName] string propertyName = null)
        {
            old = @new;
            if (propertyName != null)
            {
                RaisePropertyChanged(propertyName);
            }
        }
        #endregion

        public MainTabControl()
        {
            IPlugin plugin = new WorkControl();
            MenuItems = new ObservableCollection<PluginInfo>( PluginLoader.GetLoader().Menus);
            SubMenuItems = MenuItems[0].Children;
            this.DataContext = this;
            InitializeComponent();
        }

        // Tab切换事件
        public static readonly RoutedEvent OnTabChangeEvent =
             EventManager.RegisterRoutedEvent("OnTabChange", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(MenuTabControl));

        public event RoutedEventHandler OnTabChange
        {
            add
            {
                AddHandler(OnTabChangeEvent, value);
            }

            remove
            {
                RemoveHandler(OnTabChangeEvent, value);
            }
        }

        private ObservableCollection<PluginInfo> _MenuItems;

        public ObservableCollection<PluginInfo> MenuItems
        {
            get { return _MenuItems; }
            set
            {
                RaiseAndSetIfChanged(ref _MenuItems, value);
                RaisePropertyChanged("MenuItemsCount");
            }
        }

        public int MenuItemsCount
        {
            get => MenuItems == null ? 0 : MenuItems.Count;
        }

        private PluginInfo _SelectedMenu;

        public PluginInfo SelectedMenu
        {
            get { return _SelectedMenu; }
            set
            {
                RaiseAndSetIfChanged(ref _SelectedMenu, value);
            }
        }


        private ObservableCollection<PluginInfo> _SubMenuItems;

        public ObservableCollection<PluginInfo> SubMenuItems
        {
            get { return _SubMenuItems; }
            set
            {
                RaiseAndSetIfChanged(ref _SubMenuItems, value);
                RaisePropertyChanged("SubMenuItemsCount");
            }
        }

        public int SubMenuItemsCount
        {
            get => MenuItems == null ? 0 : MenuItems.Count;
        }

        private PluginInfo _SelectedSubMenu;

        public PluginInfo SelectedSubMenu
        {
            get { return _SelectedSubMenu; }
            set => RaiseAndSetIfChanged(ref _SelectedSubMenu, value);
        }

        private Visibility _MenuVisibility = Visibility.Collapsed;
        public Visibility MenuVisibility
        {
            get => _MenuVisibility;
            set { RaiseAndSetIfChanged(ref _MenuVisibility, value); }
        }

        public void ChangeItemVisibility(bool visiable)
        {
            MenuVisibility = visiable ? Visibility.Visible : Visibility.Collapsed;
        }

        private void Menu_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems?.Count > 0)
            {
                var data = (PluginInfo)e.AddedItems[0];
                SubMenuItems = data?.Children;
            }
        }

        private void SwithMenu(PluginInfo menu)
        {

        }


        private void SubMenu_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems?.Count > 0)
            {
                var data = (PluginInfo)e.AddedItems[0];
                var content = (UIElement)data.Content;
                var last = (IPlugin)page.Child;
                last?.DeActive();
                page.Child = content;
                ((IPlugin)content)?.Active();
            }
        }
    }
}