#-- copyright
# OpenProject is an open source project management software.
# 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 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
#
# 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 COPYRIGHT and LICENSE files for more details.
#++

module Notifications
  class MailService
    include WithMarkedNotifications

    def initialize(notification)
      self.notification = notification
    end

    def call
      return unless supported?
      return if ian_read?

      with_marked_notifications(notification.id) do
        strategy.send_mail(notification)
      end
    end

    private

    attr_accessor :notification

    def ian_read?
      notification.read_ian
    end

    def strategy
      @strategy ||= if self.class.const_defined?("#{strategy_model}Strategy")
                      "#{self.class}::#{strategy_model}Strategy".constantize
                    end
    end

    def strategy_model
      journal&.journable_type || resource&.class
    end

    def journal
      notification.journal
    end

    def resource
      notification.resource
    end

    def supported?
      strategy.present?
    end

    def notification_marked_attribute
      :mail_alert_sent
    end
  end
end