You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: note_hook.rb
    path of file: ./repos/openproject/modules/gitlab_integration/lib/open_project/gitlab_integration/notification_handler
    
    the code of the file until where you have to start completion: #-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2023 Ben Tey
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
# Copyright (C) 2012-2021 the OpenProject GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See docs/COPYRIGHT.rdoc for more details.
#++

module OpenProject::GitlabIntegration
  module NotificationHandler
    ##
    # Handles Gitlab comment notifications.
    class NoteHook
      include OpenProject::GitlabIntegration::NotificationHandler::Helper

      # TODO: this can be more refactored and simplified...
      def process(payload_params)
        @payload = wrap_payload(payload_params)
        user = User.find_by(id: payload.open_project_user_id)
        text = payload.object_attributes.note
        work_packages = find_mentioned_work_packages(text, user, payload.object_ki
    
      def process(payload_params)
        @payload = wrap_payload(payload_params)
        user = User.find_by(id: payload.open_project_user_id)
        text = payload.object_attributes.note
        work_packages = find_mentioned_work_packages(text, user, payload.object_kind)
        if work_packages.empty? && payload.object_attributes.noteable_type == 'Issue'
          text = "#{payload.issue.title} - #{payload.object_attributes.note}"
          work_packages = find_mentioned_work_packages(text, user, payload.object_kind)
          work_packages_excluded = find_excluded_work_packages(text, user)
          work_packages = work_packages - work_packages_excluded unless work_packages_excluded.empty?
          return if work_packages.empty?

          notes = generate_notes(payload, 'comment')
        elsif work_packages.empty? && payload.object_attributes.noteable_type == 'Snippet'
          text = "#{payload.snippet.title} - #{payload.object_attributes.note}"
          work_packages = find_mentioned_work_packages(text, user, payload.object_kind)
          work_packages_excluded = find_excluded_work_packages(text, user)
          work_packages = work_packages - work_packages_excluded unless work_packages_excluded.empty?
          return if work_packages.empty?

          notes = generate_notes(payload, 'reference')
        elsif work_packages.empty? && payload.object_attributes.noteable_type == 'MergeRequest'
          text = "#{payload.merge_request.title} - #{payload.object_attributes.note}"
          work_packages = find_mentioned_work_packages(text, user, payload.object_kind)
          work_packages_excluded = find_excluded_work_packages(text, user)
          work_packages = work_packages - work_packages_excluded unless work_packages_excluded.empty?
          return if work_packages.empty?

          notes = generate_notes(payload, 'comment')
        else
          notes = generate_notes(payload, 'reference')
        end