40 lines
1.1 KiB
C#
40 lines
1.1 KiB
C#
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using TwitchChatTTS.Chat.Speech;
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namespace TwitchChatTTS.Chat.Observers
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{
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public class TTSPublisher : IObservable<TTSGroupedMessage>
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{
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private readonly HashSet<IObserver<TTSGroupedMessage>> _observers;
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private readonly HashSet<TTSGroupedMessage> _messages;
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public TTSPublisher()
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{
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_observers = new();
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_messages = new();
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}
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public IDisposable Subscribe(IObserver<TTSGroupedMessage> observer)
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{
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if (_observers.Add(observer))
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{
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foreach (var item in _messages)
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observer.OnNext(item);
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}
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return new Unsubscriber<TTSGroupedMessage>(_observers, observer);
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}
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}
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internal sealed class Unsubscriber<T> : IDisposable
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{
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private readonly ISet<IObserver<T>> _observers;
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private readonly IObserver<T> _observer;
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internal Unsubscriber(ISet<IObserver<T>> observers, IObserver<T> observer)
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=> (_observers, _observer) = (observers, observer);
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public void Dispose() => _observers.Remove(_observer);
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}
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}
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