module Sessions
  # Silenzia o riattiva il microfono della camera in onda.
  # Lo stream continua a inviare AAC silenzioso (YouTube/MediaMTX richiedono la traccia audio).
  class SetAudioMute
    def initialize(session, muted:)
      @session = session
      @muted = ActiveModel::Type::Boolean.new.cast(muted)
    end

    def call
      return @session if @session.audio_muted == @muted

      @session.update!(audio_muted: @muted)
      action = @muted ? "mute_audio" : "unmute_audio"
      event_type = @muted ? "audio_muted" : "audio_unmuted"
      log_event(event_type)
      SessionChannel.broadcast_message(@session, { type: "command", action: action, muted: @muted })
      SessionChannel.broadcast_message(@session, { type: "stream_event", event: "audio_muted", muted: @muted })
      @session
    end

    private

    def log_event(type)
      @session.stream_events.create!(event_type: type, occurred_at: Time.current, metadata: { muted: @muted })
    end
  end
end