using System.Runtime.InteropServices;
using NAudio.CoreAudioApi;

namespace WirelessTextSyncer.Windows.Services;

public sealed class AudioControlService : IAudioControlService, IDisposable
{
    private readonly MMDeviceEnumerator enumerator = new();
    private bool disposed;

    public bool IsMuted
    {
        get
        {
            try
            {
                using var device = enumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
                return device.AudioEndpointVolume.Mute;
            }
            catch (COMException exception)
            {
                AppLogger.Error("Failed to read audio mute state.", exception);
                return false;
            }
        }
    }

    public void SetMute(bool muted)
    {
        try
        {
            using var device = enumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
            device.AudioEndpointVolume.Mute = muted;
            AppLogger.Info($"Audio mute set to {muted}.");
        }
        catch (COMException exception)
        {
            AppLogger.Error($"Failed to set audio mute to {muted}.", exception);
        }
    }

    public void Dispose()
    {
        if (disposed)
        {
            return;
        }

        disposed = true;
        enumerator.Dispose();
    }
}