module Katello
  class ContentViewEnvironment < Katello::Model
    audited :associated_with => :content_view
    include ForemanTasks::Concerns::ActionSubject
    include Glue::Candlepin::Environment
    include Glue
    include Authorization::ContentViewEnvironment

    belongs_to :content_view, :class_name => "Katello::ContentView", :inverse_of => :content_view_environments
    belongs_to :environment, :class_name => "Katello::KTEnvironment", :inverse_of => :content_view_environments
    belongs_to :lifecycle_environment, :class_name => "Katello::KTEnvironment", :foreign_key => :environment_id, :inverse_of => :content_view_environments
    belongs_to :content_view_version, :class_name => "Katello::ContentViewVersion",
               :inverse_of => :content_view_environments

    has_many :content_view_environment_content_facets, :class_name => "Katello::ContentViewEnvironmentContentFacet", :dependent => :destroy, :inverse_of => :content_view_environment
    has_many :content_facets, through: :content_view_environment_content_facets, :class_name => "::Katello::Host::ContentFacet", :inverse_of => :content_view_environments

    validates_lengths_from_database
    validates :environment_id, uniqueness: {scope: :content_view_id}, presence: true
    validates :content_view_id, presence: true
    validates_with Validators::ContentViewEnvironmentOrgValidator

    before_save :generate_info

    scope :non_default, -> { joins(:content_view).where("katello_content_views.default" => false) }
    alias :lifecycle_environment :environment

    def self.for_content_facets(content_facets)
      joins(:content_view_environment_content_facets, :content_facets).where("#{Katello::ContentViewEnvironmentContentFacet.table_name}.content_facet_id" => content_facets).uniq
    end

    # retrieve the owning environment for this content view environment.
    def owner
      self.environment
    end

    def hosts
      ::Host.in_content_view_environment(:content_view => self.content_view, :lifecycle_environment => self.environment)
    end

    def activation_keys
      content_view.activation_keys.in_environment(environment)
    end

    # TODO: uncomment when we need to start showing multiple CVE names in UI
    # def candlepin_name
    #   "#{environment.label}/#{content_view.label}"
    # end

    private

    def generate_info
      self.name ||= environment.name

      if content_view.default?
        self.label ||= environment.label
        self.cp_id ||= Katello::Util::Data.hexdigest(environment.organization.label)
      else
        self.label ||= [environment.label, content_view.label].join('/')
        self.cp_id ||= Katello::Util::Data.hexdigest([environment.id, content_view.id].join('-'))
      end
    end
  end
end