Shaker/Avalonia/ShakerApp/ViewModels/Menu/MenuViewModel.cs

using Avalonia.Collections;
using CommunityToolkit.Mvvm.Input;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;

namespace ShakerApp.ViewModels
{
    [AttributeUsage(AttributeTargets.Method)]
    public sealed class MenuClickAttribute:Attribute
    {
        public MenuClickAttribute(string key = "") { Key = key; }
        public string Key { get; } = string.Empty;
    }
    internal class MenuViewModel:ViewModelBase
    {
        public ICommand Command => new RelayCommand<MenuItemViewModel?>((p) => MenuClick?.Invoke(p));
        [AllowNull]
        public Action<MenuItemViewModel?> MenuClick { get; set; }

        private bool isMenuVisible = true;
        public bool IsMenuVisible { get => isMenuVisible; set => SetProperty(ref isMenuVisible, value); }
        public MenuItemViewModel? this[string key]
        {
            get
            {
                MenuItemViewModel? menu = null;
                foreach (var item in Menus)
                {
                    menu = GetMenuItem(item, key);
                    if(menu!=null)return menu;
                }
                return menu;
            }
        }
        private MenuItemViewModel? GetMenuItem(MenuItemViewModel menuItem,string key)
        {
            if (menuItem == null ) return null;
            if(menuItem.Header == key)return menuItem;
            if( menuItem.Items == null || menuItem.Items.Count == 0)return null;
            foreach (var item in menuItem.Items)
            {
                var tempmenu= GetMenuItem(item, key);
                if(tempmenu!=null)return tempmenu;
            }
            return null;
        }
        public AvaloniaList<MenuItemViewModel> Menus { get; } = new AvaloniaList<MenuItemViewModel>();
        private MenuViewModel()
        {
            Menus.Add(GetFileMenu());
            Menus.Add(GetDeviceMenu());
            Menus.Add(GetTestMenu());
        }
        private MenuItemViewModel GetFileMenu()
        {
            return new MenuItemViewModel(new MenuItemViewModel()
            {
                Header = "MenuSaveConfig",
                IconKey = "SaveGeometry",
                IconVisibile = true,
                IsEnabled = true,
                IsSeparator = false,
                IsVisible = true,
            },
            new MenuItemViewModel()
            {
                Header = "MenuLoadConfig",
                IconKey = "OpenGeometry",
                IconVisibile = true,
                IsEnabled = true,
                IsSeparator = false,
                IsVisible = true,
            },
            new MenuItemViewModel()
            {
                IsSeparator = true,
            },
            new MenuItemViewModel()
            {
                Header = "MenuExit",
                IconKey = "ExitGeometry",
                IconVisibile = true,
                IsEnabled = true,
                IsSeparator = false,
                IsVisible = true,
            })
            {
                Header = "MenuFile",
            };
        }
        private MenuItemViewModel GetDeviceMenu()
        {
            return new MenuItemViewModel(new MenuItemViewModel()
            {
                Header = "MenuManger",
                IsEnabled= true,
                IsVisible= true,
            },new MenuItemViewModel()
            {
                Header = "MenuConnect",
                IsEnabled= true,
                IsVisible = false,
            },new MenuItemViewModel()
            {
                Header= "MenuDisConnect",
                IsEnabled = false,
            },new MenuItemViewModel()
            {
                Header = "MenuDeviceConfig",
                IsEnabled = false,
            },new MenuItemViewModel()
            {
                IsSeparator= true,
            },new MenuItemViewModel()
            {
                Header = "MenuShakerControl",
                IsEnabled = false,
            },new MenuItemViewModel()
            {
                IsSeparator = true,
            },new MenuItemViewModel()
            {
                Header = "MenuOilSourceControl",
                IsEnabled =false,
            },new MenuItemViewModel()
            {
                Header= "CanDebug",
                IsSeparator =true,
                IsVisible = true,
            },new MenuItemViewModel()
            {
                Header= "MenuDebug",
                IsEnabled = false,
            })
            {
                Header = "MenuDevice",
            };
        }
        private MenuItemViewModel GetTestMenu()
        {
            return new MenuItemViewModel(new MenuItemViewModel())
            {
                Header = "MenuTest",
                IsEnabled = false,
            };
        }
        static MenuViewModel()
        {

        }
        public static MenuViewModel Instance { get; } = new MenuViewModel();
    }
}