playAudioInterruptHandler()

in lex-web-ui/src/store/actions.js [302:352]
43 lines of code
14 McCabe index (conditional complexity)

  playAudioInterruptHandler(context) {
    const { isSpeaking } = context.state.botAudio;
    const {
      enablePlaybackInterrupt,
      playbackInterruptMinDuration,
      playbackInterruptVolumeThreshold,
      playbackInterruptLevelThreshold,
      playbackInterruptNoiseThreshold,
    } = context.state.config.lex;
    const intervalTimeInMs = 200;

    if (!enablePlaybackInterrupt &&
        !isSpeaking &&
        context.state.lex.isInterrupting &&
        audio.duration < playbackInterruptMinDuration
    ) {
      return;
    }

    const intervalId = setInterval(() => {
      const { duration } = audio;
      const end = audio.played.end(0);
      const { canInterrupt } = context.state.botAudio;

      if (!canInterrupt &&
          // allow to be interrupt free in the beginning
          end > playbackInterruptMinDuration &&
          // don't interrupt towards the end
          (duration - end) > 0.5 &&
          // only interrupt if the volume seems to be low noise
          recorder.volume.max < playbackInterruptNoiseThreshold
      ) {
        context.commit('setCanInterruptBotPlayback', true);
      } else if (canInterrupt && (duration - end) < 0.5) {
        context.commit('setCanInterruptBotPlayback', false);
      }

      if (canInterrupt &&
          recorder.volume.max > playbackInterruptVolumeThreshold &&
          recorder.volume.slow > playbackInterruptLevelThreshold
      ) {
        clearInterval(intervalId);
        context.commit('setIsBotPlaybackInterrupting', true);
        setTimeout(() => {
          audio.pause();
        }, 500);
      }
    }, intervalTimeInMs);

    context.commit('setBotPlaybackInterruptIntervalId', intervalId);
  },