function _maybePlaySounds()

in react/features/base/participants/middleware.js [413:441]

• 21 lines of code
• 12 McCabe index (conditional complexity)

function _maybePlaySounds({ getState, dispatch }, action) {
    const state = getState();
    const { startAudioMuted } = state['features/base/config'];
    const { soundsParticipantJoined: joinSound, soundsParticipantLeft: leftSound } = state['features/base/settings'];

    // We're not playing sounds for local participant
    // nor when the user is joining past the "startAudioMuted" limit.
    // The intention there was to not play user joined notification in big
    // conferences where 100th person is joining.
    if (!action.participant.local
            && (!startAudioMuted
                || getParticipantCount(state) < startAudioMuted)) {
        const { isReplacing, isReplaced } = action.participant;

        if (action.type === PARTICIPANT_JOINED) {
            if (!joinSound) {
                return;
            }
            const { presence } = action.participant;

            // The sounds for the poltergeist are handled by features/invite.
            if (presence !== INVITED && presence !== CALLING && !isReplacing) {
                dispatch(playSound(PARTICIPANT_JOINED_SOUND_ID));
            }
        } else if (action.type === PARTICIPANT_LEFT && !isReplaced && leftSound) {
            dispatch(playSound(PARTICIPANT_LEFT_SOUND_ID));
        }
    }
}