# encoding: utf-8
# frozen_string_literal: true
#
# Redmine plugin for Document Management System "Features"
#
# Copyright © 2011-22 Karel Pičman <karel.picman@kontron.com>
#
# 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.

module RedmineDmsf
  module Patches
    module UserPatch

      ##################################################################################################################
      # New methods

      def self.prepended(base)
        base.class_eval do
          before_destroy :remove_dmsf_references, prepend: true
        end
      end

      private

      def remove_dmsf_references
        return if self.id.nil?
        substitute = User.anonymous
        DmsfFileRevisionAccess.where(user_id: id).update_all(user_id: substitute.id)
        DmsfFileRevision.where(user_id: id).update_all(user_id: substitute.id)
        DmsfFileRevision.where(dmsf_workflow_assigned_by_user_id: id).update_all(
            dmsf_workflow_assigned_by_user_id: substitute.id)
        DmsfFileRevision.where(dmsf_workflow_started_by_user_id: id).update_all(
            dmsf_workflow_started_by_user_id: substitute.id)
        DmsfFileRevision.where(user_id: id).update_all(user_id: substitute.id)
        DmsfFile.where(deleted_by_user_id: id).update_all(deleted_by_user_id: substitute.id)
        DmsfFolder.where(user_id: id).update_all(user_id: substitute.id)
        DmsfFolder.where(deleted_by_user_id: id).update_all(deleted_by_user_id: substitute.id)
        DmsfLink.where(user_id: id).update_all(user_id: substitute.id)
        DmsfLink.where(deleted_by_user_id: id).update_all(deleted_by_user_id: substitute.id)
        DmsfLock.where(user_id: id).delete_all
        DmsfWorkflowStepAction.where(author_id: id).update_all(author_id: substitute.id)
        DmsfWorkflowStepAssignment.where(user_id: id).update_all(user_id: substitute.id)
        DmsfWorkflowStep.where(user_id: id).update_all(user_id: substitute.id)
        DmsfWorkflow.where(author_id: id).update_all(author_id: substitute.id)
        DmsfFolderPermission.where(object_id: id, object_type: 'User').update_all(object_id: substitute.id)
      end

    end
  end
end

# Apply the patch
if Redmine::Plugin.installed?(:easy_extensions)
  RedmineExtensions::PatchManager.register_model_patch 'UserPatch', 'RedmineDmsf::Patches::UserPatch'
else
  User.prepend RedmineDmsf::Patches::UserPatch
end