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Product Support
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8

For sure, but would be cool to have.
Anyway, it looks like this would do the job as long as you hard code the category ID and group name.
Can any real coders expand on this so that you can set those variables from the plunin’s settings page?

# name: discourse-auto-remove-group
# version: 0.1
# authors: tknospdr
# url: https://github.com/tknospdr/discourse-auto-remove-group

enabled_site_setting :auto_remove_group_enabled

# Site setting to enable/disable the plugin
register_site_setting :auto_remove_group_enabled, type: :boolean, default: false
register_site_setting :auto_remove_group_category_id, type: :integer, default: 0
register_site_setting :auto_remove_group_name, type: :string, default: ""

after_initialize do
  # Listen for post creation events
  DiscourseEvent.on(:post_created) do |post|
    next unless SiteSetting.auto_remove_group_enabled
    next unless post&.user # Ensure post has a user
    next unless post&.topic&.category_id # Ensure post is in a category

    target_category_id = SiteSetting.auto_remove_group_category_id
    group_name = SiteSetting.auto_remove_group_name

    # Check if the post is in the configured category
    if post.topic.category_id == target_category_id
      begin
        group = Group.find_by(name: group_name)
        unless group
          Rails.logger.error("AutoRemoveGroup: Group '#{group_name}' not found")
          next
        end

        user = post.user
        if group.users.include?(user)
          group.remove(user)
          Rails.logger.info("AutoRemoveGroup: Removed user #{user.username} from group #{group_name} after posting in category #{target_category_id}")
        else
          Rails.logger.info("AutoRemoveGroup: User #{user.username} is not in group #{group_name}, no action taken")
        end
      rescue StandardError => e
        Rails.logger.error("AutoRemoveGroup: Error removing user from group: #{e.message}")
      end
    end
  end
end