using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Updates; using MediaBrowser.Controller; using MediaBrowser.Controller.Devices; using MediaBrowser.Controller.Entities; using MediaBrowser.Controller.Entities.Audio; using MediaBrowser.Controller.Library; using MediaBrowser.Controller.Notifications; using MediaBrowser.Controller.Plugins; using MediaBrowser.Controller.Session; using Microsoft.Extensions.Logging; using MediaBrowser.Model.Notifications; using MediaBrowser.Model.Tasks; using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Threading; using System.Threading.Tasks; using MediaBrowser.Controller.Entities.TV; using MediaBrowser.Model.Threading; using MediaBrowser.Model.Globalization; using MediaBrowser.Model.Activity; using MediaBrowser.Model.Events; namespace Emby.Notifications { /// /// Creates notifications for various system events /// public class Notifications : IServerEntryPoint { private readonly IInstallationManager _installationManager; private readonly IUserManager _userManager; private readonly ILogger _logger; private readonly ITaskManager _taskManager; private readonly INotificationManager _notificationManager; private readonly ILibraryManager _libraryManager; private readonly ISessionManager _sessionManager; private readonly IServerApplicationHost _appHost; private readonly ITimerFactory _timerFactory; private ITimer LibraryUpdateTimer { get; set; } private readonly object _libraryChangedSyncLock = new object(); private readonly IConfigurationManager _config; private readonly IDeviceManager _deviceManager; private readonly ILocalizationManager _localization; private readonly IActivityManager _activityManager; private string[] _coreNotificationTypes; public Notifications(IInstallationManager installationManager, IActivityManager activityManager, ILocalizationManager localization, IUserManager userManager, ILogger logger, ITaskManager taskManager, INotificationManager notificationManager, ILibraryManager libraryManager, ISessionManager sessionManager, IServerApplicationHost appHost, IConfigurationManager config, IDeviceManager deviceManager, ITimerFactory timerFactory) { _installationManager = installationManager; _userManager = userManager; _logger = logger; _taskManager = taskManager; _notificationManager = notificationManager; _libraryManager = libraryManager; _sessionManager = sessionManager; _appHost = appHost; _config = config; _deviceManager = deviceManager; _timerFactory = timerFactory; _localization = localization; _activityManager = activityManager; _coreNotificationTypes = new CoreNotificationTypes(localization, appHost).GetNotificationTypes().Select(i => i.Type).ToArray(); } public void Run() { _libraryManager.ItemAdded += _libraryManager_ItemAdded; _appHost.HasPendingRestartChanged += _appHost_HasPendingRestartChanged; _appHost.HasUpdateAvailableChanged += _appHost_HasUpdateAvailableChanged; _activityManager.EntryCreated += _activityManager_EntryCreated; } private async void _appHost_HasPendingRestartChanged(object sender, EventArgs e) { var type = NotificationType.ServerRestartRequired.ToString(); var notification = new NotificationRequest { NotificationType = type, Name = string.Format(_localization.GetLocalizedString("ServerNameNeedsToBeRestarted"), _appHost.Name) }; await SendNotification(notification, null).ConfigureAwait(false); } private async void _activityManager_EntryCreated(object sender, GenericEventArgs e) { var entry = e.Argument; var type = entry.Type; if (string.IsNullOrEmpty(type) || !_coreNotificationTypes.Contains(type, StringComparer.OrdinalIgnoreCase)) { return; } var userId = e.Argument.UserId; if (!userId.Equals(Guid.Empty) && !GetOptions().IsEnabledToMonitorUser(type, userId)) { return; } var notification = new NotificationRequest { NotificationType = type, Name = entry.Name, Description = entry.Overview }; await SendNotification(notification, null).ConfigureAwait(false); } private NotificationOptions GetOptions() { return _config.GetConfiguration("notifications"); } async void _appHost_HasUpdateAvailableChanged(object sender, EventArgs e) { // This notification is for users who can't auto-update (aka running as service) if (!_appHost.HasUpdateAvailable || _appHost.CanSelfUpdate) { return; } var type = NotificationType.ApplicationUpdateAvailable.ToString(); var notification = new NotificationRequest { Description = "Please see emby.media for details.", NotificationType = type, Name = _localization.GetLocalizedString("NewVersionIsAvailable") }; await SendNotification(notification, null).ConfigureAwait(false); } private readonly List _itemsAdded = new List(); void _libraryManager_ItemAdded(object sender, ItemChangeEventArgs e) { if (!FilterItem(e.Item)) { return; } lock (_libraryChangedSyncLock) { if (LibraryUpdateTimer == null) { LibraryUpdateTimer = _timerFactory.Create(LibraryUpdateTimerCallback, null, 5000, Timeout.Infinite); } else { LibraryUpdateTimer.Change(5000, Timeout.Infinite); } _itemsAdded.Add(e.Item); } } private bool FilterItem(BaseItem item) { if (item.IsFolder) { return false; } if (!item.HasPathProtocol) { return false; } if (item is IItemByName) { return false; } return item.SourceType == SourceType.Library; } private async void LibraryUpdateTimerCallback(object state) { List items; lock (_libraryChangedSyncLock) { items = _itemsAdded.ToList(); _itemsAdded.Clear(); DisposeLibraryUpdateTimer(); } items = items.Take(10).ToList(); foreach (var item in items) { var notification = new NotificationRequest { NotificationType = NotificationType.NewLibraryContent.ToString(), Name = string.Format(_localization.GetLocalizedString("ValueHasBeenAddedToLibrary"), GetItemName(item)), Description = item.Overview }; await SendNotification(notification, item).ConfigureAwait(false); } } public static string GetItemName(BaseItem item) { var name = item.Name; var episode = item as Episode; if (episode != null) { if (episode.IndexNumber.HasValue) { name = string.Format("Ep{0} - {1}", episode.IndexNumber.Value.ToString(CultureInfo.InvariantCulture), name); } if (episode.ParentIndexNumber.HasValue) { name = string.Format("S{0}, {1}", episode.ParentIndexNumber.Value.ToString(CultureInfo.InvariantCulture), name); } } var hasSeries = item as IHasSeries; if (hasSeries != null) { name = hasSeries.SeriesName + " - " + name; } var hasAlbumArtist = item as IHasAlbumArtist; if (hasAlbumArtist != null) { var artists = hasAlbumArtist.AlbumArtists; if (artists.Length > 0) { name = artists[0] + " - " + name; } } else { var hasArtist = item as IHasArtist; if (hasArtist != null) { var artists = hasArtist.Artists; if (artists.Length > 0) { name = artists[0] + " - " + name; } } } return name; } private async Task SendNotification(NotificationRequest notification, BaseItem relatedItem) { try { await _notificationManager.SendNotification(notification, relatedItem, CancellationToken.None).ConfigureAwait(false); } catch (Exception ex) { _logger.LogError("Error sending notification", ex); } } public void Dispose() { DisposeLibraryUpdateTimer(); _libraryManager.ItemAdded -= _libraryManager_ItemAdded; _appHost.HasPendingRestartChanged -= _appHost_HasPendingRestartChanged; _appHost.HasUpdateAvailableChanged -= _appHost_HasUpdateAvailableChanged; _activityManager.EntryCreated -= _activityManager_EntryCreated; } private void DisposeLibraryUpdateTimer() { if (LibraryUpdateTimer != null) { LibraryUpdateTimer.Dispose(); LibraryUpdateTimer = null; } } } }