#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2020 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 version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# 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.
#++

require_dependency 'versions_controller'

module OpenProject::Backlogs::Patches::VersionsControllerPatch
  def self.included(base)
    base.class_eval do
      include VersionSettingsHelper
      helper :version_settings

      # Find project explicitly on update and edit
      skip_before_action :find_project_from_association, only: [:edit, :update]
      skip_before_action :find_model_object, only: [:edit, :update]
      prepend_before_action :find_project_and_version, only: [:edit, :update]

      before_action :add_project_to_version_settings_attributes, only: [:update, :create]

      before_action :whitelist_update_params, only: :update

      def whitelist_update_params
        if @project != @version.project
          # Make sure only the version_settings_attributes
          # (column=left|right|none) can be stored when current project does not
          # equal the version project (which is valid in inherited versions)
          if permitted_params.version.present? && permitted_params.version[:version_settings_attributes].present?
            params['version'] = { version_settings_attributes: permitted_params.version[:version_settings_attributes] }
          else
            # This is an unfortunate hack giving how plugins work at the moment.
            # In this else branch we want the `version` to be an empty hash.
            permitted_params.define_singleton_method :version, lambda { {} }
          end
        end
      end

      def find_project_and_version
        find_model_object
        if params[:project_id]
          find_project
        else
          find_project_from_association
        end
      end

      # This forces the current project for the nested version settings in order
      # to prevent it from being set through firebug etc. #mass_assignment
      def add_project_to_version_settings_attributes
        if permitted_params.version['version_settings_attributes'].present?
          params['version']['version_settings_attributes'].each do |attr_hash|
            attr_hash['project_id'] = @project.id
          end
        end
      end
    end
  end
end

VersionsController.send(:include, OpenProject::Backlogs::Patches::VersionsControllerPatch)
