mirror of
https://github.com/yaobiao131/downkyicore.git
synced 2025-08-10 00:52:31 +00:00
577 lines
16 KiB
C#
577 lines
16 KiB
C#
using System;
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using System.Collections;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Avalonia.Media.Imaging;
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using DownKyi.Core.BiliApi.BiliUtils;
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using DownKyi.Core.BiliApi.Users.Models;
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using DownKyi.Core.BiliApi.VideoStream;
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using DownKyi.Core.Storage;
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using DownKyi.CustomControl;
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using DownKyi.Events;
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using DownKyi.Images;
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using DownKyi.Services;
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using DownKyi.Services.Download;
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using DownKyi.Utils;
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using DownKyi.ViewModels.PageViewModels;
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using Prism.Commands;
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using Prism.Events;
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using Prism.Regions;
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using IDialogService = DownKyi.PrismExtension.Dialog.IDialogService;
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namespace DownKyi.ViewModels;
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public class ViewMyBangumiFollowViewModel : ViewModelBase
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{
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public const string Tag = "PageMyBangumiFollow";
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private CancellationTokenSource _tokenSource;
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private long _mid = -1;
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// 每页视频数量，暂时在此写死，以后在设置中增加选项
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private readonly int _videoNumberInPage = 15;
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#region 页面属性申明
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private string _pageName = Tag;
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public string PageName
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{
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get => _pageName;
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set => SetProperty(ref _pageName, value);
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}
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private VectorImage _arrowBack;
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public VectorImage ArrowBack
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{
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get => _arrowBack;
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set => SetProperty(ref _arrowBack, value);
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}
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private VectorImage _downloadManage;
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public VectorImage DownloadManage
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{
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get => _downloadManage;
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set => SetProperty(ref _downloadManage, value);
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}
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private ObservableCollection<TabHeader> _tabHeaders;
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public ObservableCollection<TabHeader> TabHeaders
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{
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get => _tabHeaders;
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set => SetProperty(ref _tabHeaders, value);
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}
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private int _selectTabId;
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public int SelectTabId
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{
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get => _selectTabId;
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set => SetProperty(ref _selectTabId, value);
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}
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private bool _isEnabled = true;
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public bool IsEnabled
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{
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get => _isEnabled;
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set => SetProperty(ref _isEnabled, value);
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}
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private bool _contentVisibility;
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public bool ContentVisibility
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{
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get => _contentVisibility;
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set => SetProperty(ref _contentVisibility, value);
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}
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private CustomPagerViewModel _pager;
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public CustomPagerViewModel Pager
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{
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get => _pager;
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set => SetProperty(ref _pager, value);
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}
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private ObservableCollection<BangumiFollowMedia> _medias;
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public ObservableCollection<BangumiFollowMedia> Medias
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{
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get => _medias;
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set => SetProperty(ref _medias, value);
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}
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private bool _isSelectAll;
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public bool IsSelectAll
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{
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get => _isSelectAll;
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set => SetProperty(ref _isSelectAll, value);
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}
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private bool _loading;
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public bool Loading
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{
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get => _loading;
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set => SetProperty(ref _loading, value);
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}
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private bool _loadingVisibility;
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public bool LoadingVisibility
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{
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get => _loadingVisibility;
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set => SetProperty(ref _loadingVisibility, value);
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}
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private bool _noDataVisibility;
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public bool NoDataVisibility
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{
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get => _noDataVisibility;
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set => SetProperty(ref _noDataVisibility, value);
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}
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#endregion
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public ViewMyBangumiFollowViewModel(IEventAggregator eventAggregator, IDialogService dialogService) : base(
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eventAggregator)
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{
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this.DialogService = dialogService;
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#region 属性初始化
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// 初始化loading
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Loading = true;
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LoadingVisibility = false;
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NoDataVisibility = false;
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ArrowBack = NavigationIcon.Instance().ArrowBack;
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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// 下载管理按钮
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DownloadManage = ButtonIcon.Instance().DownloadManage;
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DownloadManage.Height = 24;
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DownloadManage.Width = 24;
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DownloadManage.Fill = DictionaryResource.GetColor("ColorPrimary");
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TabHeaders = new ObservableCollection<TabHeader>
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{
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new() { Id = (long)BangumiType.ANIME, Title = DictionaryResource.GetString("FollowAnime") },
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new() { Id = (long)BangumiType.EPISODE, Title = DictionaryResource.GetString("FollowMovie") }
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};
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Medias = new ObservableCollection<BangumiFollowMedia>();
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#endregion
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}
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#region 命令申明
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// 返回事件
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private DelegateCommand? _backSpaceCommand;
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public DelegateCommand BackSpaceCommand => _backSpaceCommand ??= new DelegateCommand(ExecuteBackSpace);
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/// <summary>
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/// 返回事件
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/// </summary>
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private void ExecuteBackSpace()
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{
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InitView();
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ArrowBack.Fill = DictionaryResource.GetColor("ColorText");
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// 结束任务
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_tokenSource?.Cancel();
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var parameter = new NavigationParam
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{
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ViewName = ParentView,
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ParentViewName = null,
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Parameter = null
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};
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EventAggregator.GetEvent<NavigationEvent>().Publish(parameter);
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}
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// 前往下载管理页面
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private DelegateCommand? _downloadManagerCommand;
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public DelegateCommand DownloadManagerCommand => _downloadManagerCommand ??= new DelegateCommand(ExecuteDownloadManagerCommand);
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/// <summary>
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/// 前往下载管理页面
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/// </summary>
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private void ExecuteDownloadManagerCommand()
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{
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var parameter = new NavigationParam
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{
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ViewName = ViewDownloadManagerViewModel.Tag,
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ParentViewName = Tag,
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Parameter = null
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};
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EventAggregator.GetEvent<NavigationEvent>().Publish(parameter);
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}
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// 顶部tab点击事件
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private DelegateCommand<object>? _tabHeadersCommand;
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public DelegateCommand<object> TabHeadersCommand => _tabHeadersCommand ??= new DelegateCommand<object>(ExecuteTabHeadersCommand, CanExecuteTabHeadersCommand);
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/// <summary>
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/// 顶部tab点击事件
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/// </summary>
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/// <param name="parameter"></param>
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private void ExecuteTabHeadersCommand(object parameter)
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{
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if (parameter is not TabHeader tabHeader)
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{
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return;
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}
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// 顶部tab点击后，隐藏Content
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ContentVisibility = false;
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// 页面选择
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Pager = new CustomPagerViewModel(1, 1);
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Pager.CurrentChanged += OnCurrentChanged_Pager;
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Pager.CountChanged += OnCountChanged_Pager;
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Pager.Current = 1;
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}
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/// <summary>
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/// 顶部tab点击事件是否允许执行
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/// </summary>
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/// <param name="parameter"></param>
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/// <returns></returns>
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private bool CanExecuteTabHeadersCommand(object parameter)
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{
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return IsEnabled;
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}
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// 全选按钮点击事件
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private DelegateCommand<object>? _selectAllCommand;
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public DelegateCommand<object> SelectAllCommand => _selectAllCommand ??= new DelegateCommand<object>(ExecuteSelectAllCommand);
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/// <summary>
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/// 全选按钮点击事件
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/// </summary>
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/// <param name="parameter"></param>
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private void ExecuteSelectAllCommand(object parameter)
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{
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if (IsSelectAll)
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{
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foreach (var item in Medias)
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{
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item.IsSelected = true;
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}
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}
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else
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{
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foreach (var item in Medias)
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{
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item.IsSelected = false;
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}
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}
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}
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// 列表选择事件
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private DelegateCommand<object>? _mediasCommand;
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public DelegateCommand<object> MediasCommand => _mediasCommand ??= new DelegateCommand<object>(ExecuteMediasCommand);
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/// <summary>
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/// 列表选择事件
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/// </summary>
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/// <param name="parameter"></param>
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private void ExecuteMediasCommand(object parameter)
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{
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if (!(parameter is IList selectedMedia))
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{
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return;
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}
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if (selectedMedia.Count == Medias.Count)
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{
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IsSelectAll = true;
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}
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else
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{
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IsSelectAll = false;
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}
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}
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// 添加选中项到下载列表事件
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private DelegateCommand? _addToDownloadCommand;
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public DelegateCommand AddToDownloadCommand => _addToDownloadCommand ??= new DelegateCommand(ExecuteAddToDownloadCommand);
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/// <summary>
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/// 添加选中项到下载列表事件
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/// </summary>
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private void ExecuteAddToDownloadCommand()
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{
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AddToDownload(true);
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}
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// 添加所有视频到下载列表事件
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private DelegateCommand? _addAllToDownloadCommand;
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public DelegateCommand AddAllToDownloadCommand => _addAllToDownloadCommand ??= new DelegateCommand(ExecuteAddAllToDownloadCommand);
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/// <summary>
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/// 添加所有视频到下载列表事件
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/// </summary>
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private void ExecuteAddAllToDownloadCommand()
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{
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AddToDownload(false);
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}
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#endregion
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/// <summary>
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/// 添加到下载
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/// </summary>
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/// <param name="isOnlySelected"></param>
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private async void AddToDownload(bool isOnlySelected)
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{
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// 订阅里只有BANGUMI类型
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var addToDownloadService = new AddToDownloadService(PlayStreamType.BANGUMI);
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// 选择文件夹
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var directory = await addToDownloadService.SetDirectory(DialogService);
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// 视频计数
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var i = 0;
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await Task.Run(async () =>
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{
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// 为了避免执行其他操作时，
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// Medias变化导致的异常
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var list = Medias.ToList();
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// 添加到下载
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foreach (var media in list)
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{
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// 只下载选中项，跳过未选中项
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if (isOnlySelected && !media.IsSelected)
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{
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continue;
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}
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/// 有分P的就下载全部
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// 开启服务
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var service = new BangumiInfoService($"{ParseEntrance.BangumiMediaUrl}md{media.MediaId}");
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addToDownloadService.SetVideoInfoService(service);
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addToDownloadService.GetVideo();
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addToDownloadService.ParseVideo(service);
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// 下载
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i += await addToDownloadService.AddToDownload(EventAggregator, DialogService, directory);
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}
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});
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if (directory == null)
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{
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return;
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}
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// 通知用户添加到下载列表的结果
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if (i <= 0)
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{
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EventAggregator.GetEvent<MessageEvent>().Publish(DictionaryResource.GetString("TipAddDownloadingZero"));
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}
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else
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{
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EventAggregator.GetEvent<MessageEvent>()
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.Publish($"{DictionaryResource.GetString("TipAddDownloadingFinished1")}{i}{DictionaryResource.GetString("TipAddDownloadingFinished2")}");
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}
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}
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private void OnCountChanged_Pager(int count)
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{
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}
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private bool OnCurrentChanged_Pager(int old, int current)
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{
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if (!IsEnabled)
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{
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//Pager.Current = old;
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return false;
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}
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UpdateBangumiMediaList(current);
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return true;
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}
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private async void UpdateBangumiMediaList(int current)
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{
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Medias.Clear();
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IsSelectAll = false;
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LoadingVisibility = true;
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NoDataVisibility = false;
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// 是否正在获取数据
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// 在所有的退出分支中都需要设为true
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IsEnabled = false;
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var tab = TabHeaders[SelectTabId];
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var type = (BangumiType)tab.Id;
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await Task.Run(() =>
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{
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var cancellationToken = _tokenSource.Token;
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var bangumiFollows = Core.BiliApi.Users.UserSpace.GetBangumiFollow(_mid, type, current, _videoNumberInPage);
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if (bangumiFollows == null || bangumiFollows.List == null || bangumiFollows.List.Count == 0)
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{
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LoadingVisibility = false;
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NoDataVisibility = true;
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return;
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}
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// 更新总页码
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Pager.Count = (int)Math.Ceiling((double)bangumiFollows.Total / _videoNumberInPage);
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// 更新内容
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ContentVisibility = true;
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foreach (var bangumiFollow in bangumiFollows.List)
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{
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// 查询、保存封面
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var coverUrl = bangumiFollow.Cover;
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Bitmap cover;
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if (coverUrl == null || coverUrl == "")
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{
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cover = null;
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}
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else
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{
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if (!coverUrl.ToLower().StartsWith("http"))
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{
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coverUrl = $"https:{bangumiFollow.Cover}";
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}
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var storageCover = new StorageCover();
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cover = storageCover.GetCoverThumbnail(bangumiFollow.MediaId, bangumiFollow.SeasonId.ToString(), -1, coverUrl, 110, 140);
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}
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// 地区
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var area = string.Empty;
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if (bangumiFollow.Areas != null && bangumiFollow.Areas.Count > 0)
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{
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area = bangumiFollow.Areas[0].Name;
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}
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// 视频更新进度
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var indexShow = string.Empty;
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if (bangumiFollow.NewEp != null)
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{
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indexShow = bangumiFollow.NewEp.IndexShow;
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}
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// 观看进度
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string progress;
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if (bangumiFollow.Progress == null || bangumiFollow.Progress == "")
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{
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progress = DictionaryResource.GetString("BangumiNotWatched");
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}
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else
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{
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progress = bangumiFollow.Progress;
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}
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App.PropertyChangeAsync(() =>
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{
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var media = new BangumiFollowMedia(EventAggregator)
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{
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MediaId = bangumiFollow.MediaId,
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SeasonId = bangumiFollow.SeasonId,
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Title = bangumiFollow.Title,
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SeasonTypeName = bangumiFollow.SeasonTypeName,
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Area = area,
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Badge = bangumiFollow.Badge,
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Cover = cover ??
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ImageHelper.LoadFromResource(
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new Uri($"avares://DownKyi/Resources/video-placeholder.png")),
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Evaluate = bangumiFollow.Evaluate,
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IndexShow = indexShow,
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Progress = progress
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};
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Medias.Add(media);
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LoadingVisibility = false;
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NoDataVisibility = false;
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});
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// 判断是否该结束线程，若为true，跳出循环
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if (cancellationToken.IsCancellationRequested)
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{
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break;
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}
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}
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}, (_tokenSource = new CancellationTokenSource()).Token);
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IsEnabled = true;
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}
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/// <summary>
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/// 初始化页面数据
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/// </summary>
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private void InitView()
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{
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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ContentVisibility = false;
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LoadingVisibility = true;
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NoDataVisibility = false;
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Medias.Clear();
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IsSelectAll = false;
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}
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/// <summary>
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/// 导航到页面时执行
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/// </summary>
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/// <param name="navigationContext"></param>
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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DownloadManage = ButtonIcon.Instance().DownloadManage;
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DownloadManage.Height = 24;
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DownloadManage.Width = 24;
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DownloadManage.Fill = DictionaryResource.GetColor("ColorPrimary");
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// 根据传入参数不同执行不同任务
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_mid = navigationContext.Parameters.GetValue<long>("Parameter");
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if (_mid == 0)
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{
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return;
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}
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InitView();
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// 初始选中项
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SelectTabId = 0;
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// 页面选择
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Pager = new CustomPagerViewModel(1, 1);
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Pager.CurrentChanged += OnCurrentChanged_Pager;
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Pager.CountChanged += OnCountChanged_Pager;
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Pager.Current = 1;
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}
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} |