require 'db/mongo/models/stack/stack_base'

module Devops
  module Model
    class StackEc2 < StackBase

      def initialize attr={}
        super(attr)
        self.provider = 'ec2'
      end

      def stack_status
        self.details['StackStatus'] if self.details
      end

      # creation date is instance of unsupported by mongo class, so stringify it
      def bson_safe_details
        return unless details
        result = details.dup
        result['CreationTime'] = result['CreationTime'].to_s
        result
      end

      def update_in_cloud!(params)
        parameters = params.keep_if do |key|
          %w(Parameters TemplateBody TemplateURL Capabilities).include?(key)
        end

        provider_instance.update_stack(self, parameters)
      end

      # We should improve this functionality: stack will be rollbacked
      # if there are errors during stack_template changing, so we should track
      # that process and persist changes only in case of success.
      def change_stack_template!(stack_template)
        self.stack_template = stack_template
        update_in_cloud!('TemplateBody' => template_body)
        Devops::Db.connector.stack_update(self)
      end

    end
  end
end