zooniverse/Talk-Api

class DiscussionService < ApplicationService
  def build
    set_user
    @resource = model_class.new(discussion_params).tap do |discussion|
      new_comment = CommentService.new({
        params: comment_params,
        action: :create,
        current_user: current_user,
        user_ip: user_ip
      }).build
      discussion.focus = new_comment.focus
      discussion.comments << new_comment
    end
  end

  def update
    find_resource unless resource
    self.action = :owner_update if !policy.admin? && !policy.moderator? && policy.owner?
    super
  end

  def discussion_params
    unrooted_params.except :comments
  end

  def comment_params
    ActionController::Parameters.new({
      comments: unrooted_params[:comments].first
    })
  rescue
    ActionController::Parameters.new
  end
end