Set notification settings per user and user groups

[Romain P.]

What are you trying to do?

I'm using the Comments plugin only in a requireLogin area of the website.
I would like that each (non-admin) user can set its settings preference on front-end for notificationAuthorEnabled + notificationReplyEnabled.
Is there any way to do so individually out of the box, or any event that would trigger or block the sending of this email if the preference is checked/unchecked for a specific user?

To go one step further, I'm also looking for a notificationAdminEnabled setting, but that would be sending to a special user group that are not admins but just moderators.
I also would like that they're able to set the settings preferences as explained previously, but for an equivalent of notificationAdminEnabled.

What's your proposed solution?

No suggestion, but open for discussion.

Additional context

No response

[Josh Crawford]

You'd have to create a lightswitch field to allows users to manage this, and add it to user elements. You could then hook into the notification events to fire $event->isValid = false; depending on the current user's account setting.

[Romain P.]

Excellent! Thank you, I'll test this out.

[Romain P.]

Thank you, I was able to make it works with this (where userNotificationsComments is a lightswitch):

Event::on(CommentsService::class, CommentsService::EVENT_BEFORE_SEND_REPLY_EMAIL, function(EmailEvent $event) {
    // Prevent sending
    if (!empty($event->user->id ?? null)) {
        if (empty(Craft::$app->users->getUserById($event->user->id)->userNotificationsComments)) {
            $event->isValid = false;
        }
    }
});