#-- encoding: UTF-8

#-- 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.
#++

class Users::ProjectAuthorizationCache
  attr_accessor :user

  def initialize(user)
    self.user = user
  end

  def cache(actions)
    cached_actions = if actions.is_a?(Array)
                       actions
                     else
                       [actions]
                     end

    cached_actions.each do |action|
      allowed_project_ids = Project.allowed_to(user, action).pluck(:id)

      projects_by_actions[normalized_permission_name(action)] = allowed_project_ids
    end
  end

  def cached?(action)
    projects_by_actions[normalized_permission_name(action)]
  end

  def allowed?(action, project)
    projects_by_actions[normalized_permission_name(action)].include? project.id
  end

  private

  def normalized_permission_name(action)
    OpenProject::AccessControl.permission(action)
  end

  def projects_by_actions
    @projects_by_actions ||= {}
  end
end