AIKKEY_WPFWin7/ViewModels/RemoteGeneration/RemoteGenerationViewModel.cs

using AIK.Common.SysCommon;
using AIK.Models;
using AIK.Models.SystemSettings;
using AIK.Service.IService;
using AIK.Service.Service;
using AIK.ViewModels.CommonViewModel;
using AIK.ViewModels.Messages;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace AIK.ViewModels.RemoteGeneration
{
    public partial class RemoteGenerationViewModel : ObservableObject, IRecipient<LocalLanguageMessage>, ILoadAware
    {
        private readonly IVehDataService _vehDataService;
        private readonly IConfigurationService _configurationService;
        private readonly ILogger<RemoteGenerationViewModel> _logger;
        private List<AlphabetGroup> groups = new();
        [ObservableProperty]
        private ObservableCollection<AlphabetGroup> _filteredGroups = new();
        private readonly IMessenger _messenger;
        [ObservableProperty]
        private string searchText = string.Empty;

        [ObservableProperty]
        private CarfactoryClass? _selectedItem;

        [ObservableProperty]
        private bool _isLoading = false;

        private object _midContent;
        public object MidContent
        {
            get => _midContent;
            set => SetProperty(ref _midContent, value);
        }
        [ObservableProperty]
        private CacheInfo _cacheInfo = new CacheInfo();
        [ObservableProperty]
        private bool _isCacheValid;

        public KeyModelViewModel KeyModelVM { get; }

        private bool isSingletonInstance = false;
        public RemoteGenerationViewModel(IVehDataService vehDataService, IConfigurationService configurationService,
            IMessenger messenger, KeyModelViewModel _keyModelVM, ILogger<RemoteGenerationViewModel> logger)
        {
            _configurationService = configurationService;
            _vehDataService = vehDataService;
            _logger = logger;
            _messenger = messenger;
            KeyModelVM = _keyModelVM;
            // 注册消息接收
            //_messenger.Register<RequestUpdateMessage>(this);
            WeakReferenceMessenger.Default.Register<LocalLanguageMessage>(this);
            InitializeUI();
            //_ = InitializeData();
            //var s= MacAddressHelper.GetPrimaryMacAddress();

        }
        #region 初始化
        private void InitializeUI()
        {
            //Type? type = Assembly.Load("AIK.Views")
            //    .GetType("AIK.Views.MenuPages." + "CommonPage.KeyModelPage");

            //if (type != null)
            //{
            //    MidContent = Activator.CreateInstance(type);
            //}
            // 快速显示空分组
            groups = CreateEmptyGroups();
            FilteredGroups = new ObservableCollection<AlphabetGroup>(groups);
        }

        private List<AlphabetGroup> CreateEmptyGroups()
        {
            var list = new List<AlphabetGroup>();
            for (char c = 'A'; c <= 'Z'; c++)
            {
                list.Add(new AlphabetGroup { Letter = c.ToString() });
            }
            return list;
        }
        public async Task OnLoadedAsync()
        {
            if (!isSingletonInstance)
            {
                await LoadDataInBackground();
                isSingletonInstance = true;
            }

        }
        private async Task LoadDataInBackground()
        {
            try
            {
                var cardata = await _vehDataService.GetVehDataAsync("car", false);
                cardata = cardata.OrderBy(a => a.py.Substring(0, 1)).ToList();
                if (cardata != null && cardata.Count > 0)
                {
                    foreach (var item in cardata)
                    {
                        var firstName = item.py.Substring(0, 1).ToUpper();
                        var model = groups.Find(a => a.Letter == firstName);
                        item.IsSelected = false;
                        if (model != null)
                        {
                            model.Items.Add(item);
                        }
                    }
                    var carBrandModel = cardata.FirstOrDefault();
                    if (carBrandModel != null)
                    {
                        carBrandModel.IsSelected = true;
                        _messenger.Send(new CarSelectMessage(carBrandModel));
                        UpdateFilteredGroups();
                    }
                }
                else
                {
                    FilteredGroups = new ObservableCollection<AlphabetGroup>();
                    _messenger.Send(new CarSelectMessage(null));
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "加载汽车品牌数据时出错");
                throw;
            }
            //finally { IsLoading = false; }

        }
        #endregion
        #region 消息传递
        [RelayCommand]
        private void RequestUpdateB(CarfactoryClass carBrand)
        {
            if (carBrand != null)
            {
                SelectedItem = carBrand;
                foreach (var group in FilteredGroups)
                {
                    foreach (var item in group.Items)
                    {
                        item.IsSelected = false;
                    }
                }
                carBrand.IsSelected = true;
                // 发送汽车品牌选择消息
                _messenger.Send(new CarSelectMessage(carBrand));

            }
        }
        #region 留做全局通知处理
        // 接收请求更新消息
        //public void Receive(RequestUpdateMessage message)
        //{
        //    // 处理来自其他组件的更新请求
        //    //RefreshData();
        //}
        //[RelayCommand]
        //private void RefreshData()
        //{
        //    InitializeData();
        //}
        #endregion
        #endregion

        #region 页面方法

        [RelayCommand]
        private void Search()
        {
            UpdateFilteredGroups();
        }
        private void UpdateFilteredGroups()
        {
            FilteredGroups.Clear();
            var TempList = new List<AlphabetGroup>();
            if (string.IsNullOrWhiteSpace(SearchText))
            {
                // 显示所有非空分组
                foreach (var group in groups.Where(g => g.Items.Any()))
                {
                    TempList.Add(group);
                }
            }
            else
            {
                var searchLower = SearchText.ToLower();

                foreach (var group in groups)
                {
                    var filteredItems = group.Items
                        .Where(item =>
                            item.brandName?.ToLower().Contains(searchLower) == true ||
                            item.engName?.ToLower().Contains(searchLower) == true ||
                            item.py?.ToLower().Contains(searchLower) == true)
                        .ToList();

                    if (filteredItems.Any())
                    {
                        var filteredGroup = new AlphabetGroup();
                        foreach (var item in filteredItems)
                        {
                            filteredGroup.Items.Add(item);
                        }
                        TempList.Add(filteredGroup);
                    }
                }
            }
            FilteredGroups = new ObservableCollection<AlphabetGroup>(TempList);
        }

        // 当搜索文本改变时自动过滤
        partial void OnSearchTextChanged(string value)
        {
            UpdateFilteredGroups();
        }
        [RelayCommand]
        private void WordClicked(CarfactoryClass item)
        {
            if (!string.IsNullOrEmpty(item.py))
            {
                // 这里可以添加您的业务逻辑
                MessageBox.Show($"您点击了: {item.py}", "提示", MessageBoxButton.OK, MessageBoxImage.Information);

                // 示例：在控制台输出
                System.Diagnostics.Debug.WriteLine($"单词被点击: {item.py}");

                // 示例：可以在这里添加导航、数据更新等逻辑
                // NavigateToWordDetail(word);
                // UpdateSelectedWord(word);
            }
        }
        #endregion
        /// <summary>
        /// 选中事件
        /// </summary>
        /// <param name="item"></param>
        [RelayCommand]
        private void SelectItem(CarfactoryClass item)
        {
            SelectedItem = item;
            // 这里可以执行其他选中后的逻辑
            var info = CacheInfo;
        }

        //语言缓存变更接收
        public void Receive(LocalLanguageMessage message)
        {
            if (message != null)
            {
                InitializeUI();
                _ = LoadDataInBackground();
            }
        }
    }
    /// <summary>
    /// 品牌分组
    /// </summary>
    public class AlphabetGroup
    {
        public string Letter { get; set; }
        public ObservableCollection<CarfactoryClass> Items { get; set; } = new ObservableCollection<CarfactoryClass>();
    }
}