using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Windows;
using System.Windows.Threading;
using HeBianGu.General.WpfControlLib;
using HeBianGu.Service.Mvc;
using Hopetry.ViewModel.Send;

namespace HeBianGu.App.Disk
{
    [ViewModel("Send")]
    internal class SendViewModel : MvcViewModelBase
    {
        private LinkAction _uploadingAction; //正在上传
        private LinkAction _completeAction; //上传完成
        public LinkAction DownLinkAction;

        protected override void Init()
        {
            ITransitionWipe wipe = new CircleWipe();

            DownLinkAction = new LinkAction()
                { Action = "Down", Controller = "Send", DisplayName = "下载 0", Logo = "\xe891", TransitionWipe = wipe };
            LinkActions.Add(DownLinkAction);
            // 正在上传
            _uploadingAction = new LinkAction()
            {
                Action = "UpLoad",
                Controller = "Send",
                DisplayName = "正在上传",
                Logo = "\xe6f3", TransitionWipe = wipe
            };
            LinkActions.Add(_uploadingAction);

            _completeAction = new LinkAction()
            {
                Action = "CompleteUpload",
                Controller = "Send",
                DisplayName = "上传完成",
                Logo = "\xe613", TransitionWipe = wipe
            };
            LinkActions.Add(_completeAction);
            //LinkActions.Add(new LinkAction() { Action = "Down", Controller = "Send", DisplayName = "文件快传", Logo = "\xe764" });
            Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Loaded,
                new Action(() => { SelectLink = LinkActions[0]; }));
            UpLoadItems.CollectionChanged += (s, e) => { UpdateUploadingItems(); };
        }

        protected override void Loaded(string args)
        {
        }

        #region 文件上传

        //上传文件总数
        private ObservableCollection<UpLoadItems> _upLoadItems = new ObservableCollection<UpLoadItems>();

        /// <summary> 说明  </summary>
        public ObservableCollection<UpLoadItems> UpLoadItems
        {
            get { return _upLoadItems; }
            set
            {
                _upLoadItems = value;
                //UpdateUploadingItems();
                RaisePropertyChanged("UpLoadItems");
            }
        }

        //已上传完成文件
        private ObservableCollection<UpLoadItems> _completeItems = new ObservableCollection<UpLoadItems>();

        public ObservableCollection<UpLoadItems> CompleteItems
        {
            get { return _completeItems; }
            private set
            {
                _completeItems = value;
                RaisePropertyChanged("CompleteItems");
            }
        }


        // 只读属性，返回过滤后的集合（动态计算）
        private ObservableCollection<UpLoadItems> _uploadingItems = new ObservableCollection<UpLoadItems>();

        public ObservableCollection<UpLoadItems> UploadingItems
        {
            get { return _uploadingItems; }
            private set
            {
                _uploadingItems = value;
                RaisePropertyChanged("UploadingItems");
            }
        }

        // 在 UpLoadItems 变化时更新 UploadingItems
        public void UpdateUploadingItems()
        {
            UploadingItems = new ObservableCollection<UpLoadItems>(
                UpLoadItems?.Where(item => item.Value3 != "已完成") ?? Enumerable.Empty<UpLoadItems>()
            );
        }


        //文件上传进度
        private double _progress;

        public double Progress
        {
            get { return _progress; }
            set
            {
                if (_progress != value)
                {
                    _progress = value;
                    RaisePropertyChanged("Progress");
                }
            }
        }

        //上传文件个数
        private string _filecount;

        public string FileCount
        {
            get { return _filecount; }
            set
            {
                if (_filecount != value)
                {
                    _filecount = value;
                    RaisePropertyChanged("FileCount");
                }
            }
        }

        //上传完成文件个数
        private int _uploadingcount;

        public int UploadingCount
        {
            get { return _uploadingcount; }
            set
            {
                if (_uploadingcount != value)
                {
                    _uploadingcount = value;
                    _uploadingAction.FullName = "(" + _uploadingcount + ")";
                    RaisePropertyChanged("UploadingCount");
                }
            }
        }

        //上传文件个数
        private int _completecount;

        public int CompleteCount
        {
            get { return _completecount; }
            set
            {
                if (_completecount != value)
                {
                    _completecount = value;
                    _completeAction.FullName = "(" + _completecount + ")";
                    RaisePropertyChanged("CompleteCount");
                }
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected void OnPropertyChanged(string propertyName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        #endregion
    }
}