# frozen_string_literal: true

# = Informations
#
# == License
#
# Ekylibre - Simple agricultural ERP
# Copyright (C) 2008-2009 Brice Texier, Thibaud Merigon
# Copyright (C) 2010-2012 Brice Texier
# Copyright (C) 2012-2014 Brice Texier, David Joulin
# Copyright (C) 2015-2023 Ekylibre SAS
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see http://www.gnu.org/licenses.
#
# == Table: attachments
#
#  created_at    :datetime         not null
#  creator_id    :integer(4)
#  deleted_at    :datetime
#  deleter_id    :integer(4)
#  document_id   :integer(4)       not null
#  expired_at    :datetime
#  id            :integer(4)       not null, primary key
#  lock_version  :integer(4)       default(0), not null
#  nature        :string
#  resource_id   :integer(4)       not null
#  resource_type :string           not null
#  updated_at    :datetime         not null
#  updater_id    :integer(4)
#
class Attachment < ApplicationRecord
  belongs_to :document, inverse_of: :attachments
  belongs_to :resource, polymorphic: true, inverse_of: :attachments

  acts_as_paranoid
  belongs_to :deleter, class_name: 'User'

  refers_to :nature, class_name: 'DocumentNature'
  # [VALIDATORS[ Do not edit these lines directly. Use `rake clean:validations`.
  validates :deleted_at, :expired_at, timeliness: { on_or_after: -> { Time.new(1, 1, 1).in_time_zone }, on_or_before: -> { Time.zone.now + 100.years } }, allow_blank: true
  validates :resource_type, presence: true, length: { maximum: 500 }
  validates :document, :resource, presence: true
  # ]VALIDATORS]

  delegate :name, to: :document

  before_validation do
    self.resource_type = resource.class.base_class.name if resource
    self.nature = document.nature if document
  end

  before_destroy do
    # Trick to get current_user in model where it should not be accessible
    current_user = User.find(User.stamper)
    self.update!(deleter: current_user)
  end

  accepts_nested_attributes_for :document
end
