feat: Implement Playlists and Programs Management
- Added PlaylistsGroupViewModel to manage playlists and selection. - Introduced ProgramsGroupViewModel for handling program groups and subscriptions. - Created ProgramsListViewModel to manage individual program listings. - Developed SettingsViewModel for user settings including playlist management. - Implemented TVPlayerViewModel as the main view model coordinating screens and data. - Added PlayerView for video playback with LibVLC integration. - Created XAML views for PlaylistsGroup, ProgramsGroup, ProgramsList, and Settings. - Added sample M3U playlist for testing. - Documented WPF build instructions and project structure in WPF-BUILD.md. - Configured global.json for .NET SDK versioning.
This commit is contained in:
Vladimir
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using CommunityToolkit.Mvvm.Input;
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using System.Diagnostics;
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using System.Reactive.Linq;
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using System.Windows.Input;
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namespace TV_Player.AvaloniaApp.ViewModels;
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public class PlayerViewModel : TV_Player.ObservableViewModelBase, IDisposable
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{
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private readonly IDisposable _programSubscription;
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private IDisposable? _programGuideDisposable;
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private IDisposable? _timer;
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private M3UInfo _currentProgram;
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private List<M3UInfo> _programs = new();
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private ProgramGuide? _currentGuide;
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private ProgramInfo? _currentProgramInfo;
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private int _currentProgramIndex;
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public ICommand BackCommand { get; }
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public ICommand FullscreenCommand { get; }
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public ICommand NextCommand { get; }
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public ICommand PreviousCommand { get; }
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public ICommand ShowProgramListCommand { get; }
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public ICommand CloseAppCommand { get; }
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public ICommand OpenStreamCommand { get; }
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private string _topPanelTitle = string.Empty;
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public string TopPanelTitle
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{
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get => _topPanelTitle;
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set => SetProperty(ref _topPanelTitle, value);
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}
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private string _programGuideText = string.Empty;
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public string ProgramGuideText
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{
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get => _programGuideText;
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set => SetProperty(ref _programGuideText, value);
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}
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private string _startProgram = string.Empty;
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public string StartProgram
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{
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get => _startProgram;
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set => SetProperty(ref _startProgram, value);
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}
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private string _endProgram = string.Empty;
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public string EndProgram
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{
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get => _endProgram;
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set => SetProperty(ref _endProgram, value);
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}
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private int _durationValue;
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public int DurationValue
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{
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get => _durationValue;
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set => SetProperty(ref _durationValue, value);
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}
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private bool _isProgramInfoVisible;
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public bool IsProgramInfoVisible
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{
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get => _isProgramInfoVisible;
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set => SetProperty(ref _isProgramInfoVisible, value);
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}
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private bool _programGuideVisible;
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public bool ProgramGuideVisible
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{
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get => _programGuideVisible;
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set => SetProperty(ref _programGuideVisible, value);
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}
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private string _streamUrl = string.Empty;
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public string StreamUrl
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{
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get => _streamUrl;
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set => SetProperty(ref _streamUrl, value);
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}
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private string _playbackStatus = "Buffering stream...";
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public string PlaybackStatus
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{
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get => _playbackStatus;
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set => SetProperty(ref _playbackStatus, value);
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}
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private bool _hasPlaybackStatus = true;
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public bool HasPlaybackStatus
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{
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get => _hasPlaybackStatus;
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set => SetProperty(ref _hasPlaybackStatus, value);
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}
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private List<ProgramInfo> _programItems = new();
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public List<ProgramInfo> Programs
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{
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get => _programItems;
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set => SetProperty(ref _programItems, value);
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}
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public PlayerViewModel(M3UInfo selectedProgram)
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{
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_currentProgram = selectedProgram;
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BackCommand = new RelayCommand(OnButtonBackClick);
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NextCommand = new RelayCommand(NextProgram);
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PreviousCommand = new RelayCommand(PreviousProgram);
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FullscreenCommand = new RelayCommand(TVPlayerViewModel.Instance.FullScreenToggle);
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CloseAppCommand = new RelayCommand(TVPlayerViewModel.Instance.CloseAppCommand);
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ShowProgramListCommand = new RelayCommand(ShowProgramList);
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OpenStreamCommand = new RelayCommand(OpenStreamExternally);
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_programSubscription = TVPlayerViewModel.Instance.CurrentProgramsData!
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.AllPrograms
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.Subscribe(programs =>
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{
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_programs = programs.Where(p => p.GroupTitle == _currentProgram.GroupTitle).ToList();
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_currentProgramIndex = _programs.FindIndex(p => p.Name == _currentProgram.Name);
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if (_currentProgramIndex < 0)
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_currentProgramIndex = 0;
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});
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UpdateUi();
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}
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public void SetPlaybackStatus(string status)
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{
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PlaybackStatus = status;
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HasPlaybackStatus = !string.IsNullOrWhiteSpace(status);
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}
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private void UpdateUi()
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{
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TVPlayerViewModel.Instance.TopPanelVisible(false, _currentProgram.Name);
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TopPanelTitle = _currentProgram.Name;
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StreamUrl = _currentProgram.Url;
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SetPlaybackStatus(string.IsNullOrWhiteSpace(StreamUrl)
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? "No stream URL available for this channel."
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: "Buffering stream...");
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ProgramGuideVisible = false;
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_programGuideDisposable?.Dispose();
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_timer?.Dispose();
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_programGuideDisposable = TVPlayerViewModel.Instance.CurrentProgramsData!
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.ProgramGuideInfo
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.Subscribe(async _ =>
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{
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try
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{
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_currentGuide = await TVPlayerViewModel.Instance.CurrentProgramsData.GetGuideByProgram(_currentProgram.TvgID);
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UpdateScreenInfo();
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_timer = Observable.Interval(TimeSpan.FromMinutes(1)).Subscribe(_ => UpdateScreenInfo());
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}
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catch (Exception ex)
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{
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Debug.WriteLine($"Failed to load program guide: {ex.Message}");
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}
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});
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}
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private void PreviousProgram()
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{
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if (_programs.Count == 0)
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return;
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_currentProgramIndex = (_currentProgramIndex - 1 + _programs.Count) % _programs.Count;
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_currentProgram = _programs[_currentProgramIndex];
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UpdateUi();
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}
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private void NextProgram()
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{
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if (_programs.Count == 0)
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return;
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_currentProgramIndex = (_currentProgramIndex + 1) % _programs.Count;
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_currentProgram = _programs[_currentProgramIndex];
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UpdateUi();
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}
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private void ShowProgramList()
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{
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ProgramGuideVisible = !ProgramGuideVisible;
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}
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private void OpenStreamExternally()
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{
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if (string.IsNullOrWhiteSpace(StreamUrl))
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return;
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Process.Start(new ProcessStartInfo
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{
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FileName = StreamUrl,
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UseShellExecute = true
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});
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}
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private void UpdateScreenInfo()
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{
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try
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{
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if (_currentGuide?.Programs == null || _currentGuide.Programs.Count == 0)
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{
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IsProgramInfoVisible = false;
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Programs = new List<ProgramInfo>();
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return;
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}
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_currentProgramInfo = _currentGuide.Programs
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.FirstOrDefault(item => item.StartTime <= DateTime.Now && item.EndTime >= DateTime.Now);
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if (_currentProgramInfo == null)
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{
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IsProgramInfoVisible = false;
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Programs = _currentGuide.Programs.Take(7).ToList();
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return;
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}
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var currentIndex = _currentGuide.Programs.FindIndex(x => x.Title == _currentProgramInfo.Title);
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Programs = _currentGuide.Programs.Skip(Math.Max(currentIndex, 0)).Take(7).ToList();
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IsProgramInfoVisible = true;
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ProgramGuideText = _currentProgramInfo.Title;
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StartProgram = _currentProgramInfo.StartTime.ToShortTimeString();
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EndProgram = _currentProgramInfo.EndTime.ToShortTimeString();
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var totalMinutes = (_currentProgramInfo.EndTime - _currentProgramInfo.StartTime).TotalMinutes;
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DurationValue = totalMinutes <= 0
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? 0
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: (int)((DateTime.Now - _currentProgramInfo.StartTime).TotalMinutes / totalMinutes * 100);
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}
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catch (Exception ex)
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{
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Debug.WriteLine($"Failed to update screen info: {ex.Message}");
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}
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}
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private void OnButtonBackClick()
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{
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TVPlayerViewModel.Instance.ShowProgramsListScreen(new GroupInfo
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{
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Name = _currentProgram.GroupTitle,
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Count = 0
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});
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}
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public void Dispose()
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{
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_programSubscription.Dispose();
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_programGuideDisposable?.Dispose();
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_timer?.Dispose();
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}
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}
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