# frozen_string_literal: true

module ForemanAcd
  # Extends the Host Managed
  module HostManagedExtensions
    extend ActiveSupport::Concern

    def self.prepended(base)
      base.instance_eval do
        before_provision :initiate_acd_app_configurator_after_host_deployment, :if => :deployed_via_acd?
        before_destroy :check_deletable, :prepend => true, :if => :deployed_via_acd?

        has_many :app_instances, :through => :foreman_hosts, :class_name => 'ForemanAcd::AppInstance'

        scoped_search :relation => :app_instances,
                      :on => :name,
                      :rename => :acd_app_instance,
                      :only_explicit => true,
                      :complete_value => true,
                      :operators => ['= '],
                      :ext_method => :find_by_acd_app_instance_name
      end

      base.singleton_class.prepend ClassMethods
    end

    # New class methods for Host::Managed
    module ClassMethods
      def find_by_acd_app_instance_name(_key, operator, acd_instance_name)
        cond = sanitize_sql_for_conditions(["acd_app_instances.name #{operator} ?", value_to_sql(operator, acd_instance_name)])
        hosts = ForemanAcd::AppInstance.where(cond).joins(:foreman_hosts).pluck(:host_id)
        if hosts.empty?
          { :condition => '1=0' }
        else
          { :conditions => Host::Managed.arel_table[:id].in(hosts).to_sql }
        end
      end
    end

    def deployed_via_acd?
      find_foreman_host
      @foreman_host.present?
    end

    private

    def check_deletable
      return if @foreman_host.blank?
      ::Foreman::Logging.logger('foreman_acd').warn "Could not delete host '#{name}' because it is used in Applications > App Instances '#{@foreman_host.app_instance.name}'"
      raise _("Could not delete host '%{host_name}' because it is used in Applications > App Instances '%{app_instance_name}'") % {
        :host_name => name, :app_instance_name => @foreman_host.app_instance.name
      }
    end

    def find_foreman_host
      @foreman_host = ForemanAcd::ForemanHost.find_by(:host_id => id)
    end

    def initiate_acd_app_configurator_after_host_deployment
      return if @foreman_host.blank?
      ForemanAcd.initiate_acd_app_configurator(@foreman_host.app_instance)
    end
  end
end