#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
#
# 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 doc/COPYRIGHT.rdoc for more details.
#++

class WorkPackageCustomField < CustomField
  has_and_belongs_to_many :projects, join_table: "#{table_name_prefix}custom_fields_projects#{table_name_suffix}", foreign_key: 'custom_field_id'
  has_and_belongs_to_many :types, join_table: "#{table_name_prefix}custom_fields_types#{table_name_suffix}", foreign_key: 'custom_field_id'
  has_many :work_packages, through: :work_package_custom_values

  scope :visible_by_user, -> (user) {
    unless user.admin?
      joins('LEFT OUTER JOIN custom_fields_projects AS cfp ON (custom_fields.id = cfp.custom_field_id) ' \
            'LEFT OUTER JOIN projects AS p ON (cfp.project_id = p.id) ' \
            'LEFT OUTER JOIN members AS m ON (p.id = m.project_id)')
        .where("p.is_public = #{ActiveRecord::Base.connection.quoted_true} " \
             "OR custom_fields.is_for_all = #{ActiveRecord::Base.connection.quoted_true} " \
             'OR m.user_id = ?', user.id)
    end
  }

  def self.summable
    ids = Setting.work_package_list_summable_columns.map { |column_name|
      if match = /cf_(\d+)/.match(column_name)
        match[1]
      end
    }.compact

    where(id: ids)
  end

  def type_name
    # TODO
    # this needs to be renamed to label_work_package_plural
    :label_work_package_plural
  end
end