using Model.Entity;
using Prism.Commands;
using Prism.Ioc;
using Service.Interface;
using System.Windows.Input;
using UIShare.ViewModelBase;

namespace MainModule.ViewModels
{
    public class PostDetailViewModel : NavigateViewModelBase
    {
        #region 属性
        
        private PostEntity _selectedPost;
        public PostEntity SelectedPost
        {
            get => _selectedPost;
            set => SetProperty(ref _selectedPost, value);
        }

        #endregion
        
        #region 命令
        
        public ICommand LikePostCommand { get; set; }
        public ICommand FavoritePostCommand { get; set; }
        public ICommand SharePostCommand { get; set; }
        
        #endregion
        
        #region 私有字段
        private IContainerProvider _containerProvider;
        private IPostService _postService;
        private IDialogService _dialogService;
        #endregion
    
        public PostDetailViewModel(IContainerProvider containerProvider) : base(containerProvider)
        {
            _containerProvider = containerProvider;
            _postService = containerProvider.Resolve<IPostService>();
            _dialogService = containerProvider.Resolve<IDialogService>();
            InitializeCommands();
        }

        private void InitializeCommands()
        {
            LikePostCommand = new DelegateCommand(OnLikePost);
            FavoritePostCommand = new DelegateCommand(OnFavoritePost);
            SharePostCommand = new DelegateCommand(OnSharePost);
        }

        #region 命令处理

        private async void OnLikePost()
        {
            if (SelectedPost != null)
            {
                SelectedPost.LikeCount++;
                // 在实际应用中，这里应该调用服务更新数据库
                var result = await _postService.UpdatePostAsync(SelectedPost);
                if (!result.IsSuccess)
                {
                    var dialogParams = new DialogParameters();
                    dialogParams.Add("Title", "错误");
                    dialogParams.Add("Message", "点赞失败" + result.Msg);
                    dialogParams.Add("Icon", "error");
                    dialogParams.Add("ShowOk", true);
                    _dialogService.ShowDialog("MessageBox", dialogParams);
                }
            }
        }

        private async void OnFavoritePost()
        {
            if (SelectedPost != null)
            {
                var dialogParams = new DialogParameters();
                dialogParams.Add("Title", "提示");
                dialogParams.Add("Message", "帖子已收藏");
                dialogParams.Add("Icon", "info");
                dialogParams.Add("ShowOk", true);
                _dialogService.ShowDialog("MessageBox", dialogParams, result =>
                {
                    if (result.Result == ButtonResult.OK)
                    {
                        // 用户点击了确定
                    }
                });
            }
        }

        private async void OnSharePost()
        {
            if (SelectedPost != null)
            {
                var dialogParams = new DialogParameters();
                dialogParams.Add("Title", "提示");
                dialogParams.Add("Message", "分享功能待实现");
                dialogParams.Add("Icon", "info");
                dialogParams.Add("ShowOk", true);
                _dialogService.ShowDialog("MessageBox", dialogParams, result =>
                {
                    if (result.Result == ButtonResult.OK)
                    {
                        // 用户点击了确定
                    }
                });
            }
        }

        #endregion

        #region 业务方法

        public async void LoadPostDetails(PostEntity post)
        {
            if (post != null)
            {
                SelectedPost = post;
                // 增加浏览量
                SelectedPost.ViewCount++;
                // 在实际应用中，这里应该调用服务更新数据库
                var result = await _postService.UpdatePostAsync(SelectedPost);
                if (!result.IsSuccess)
                {
                    var dialogParams = new DialogParameters();
                    dialogParams.Add("Title", "错误");
                    dialogParams.Add("Message", "加载帖子详情失败" + result.Msg);
                    dialogParams.Add("Icon", "error");
                    dialogParams.Add("ShowOk", true);
                    _dialogService.ShowDialog("MessageBox", dialogParams);
                }
            }
        }

        #endregion
    }
}