module Meroku
  module Aws
    # Logic related to the ec2 instances we use as servers
    module Ec2
      def tag
        {
          resource_type: 'instance',
          tags: [
            {
              key: 'Name',
              value: 'node'
            }
          ]
        }
      end

      def make_instance
        ec2_client.run_instances(
          image_id: 'ami-841f46ff',
          min_count: 1,
          max_count: 1,
          key_name: 'meroku.id_rsa',
          instance_type: 't2.micro',
          tag_specifications: [tag]
        ).instances.first
      end

      def ec2_client
        ::Aws::EC2::Client.new(
          region: 'us-east-1',
          credentials: ::Aws::Credentials.new(
            ENV['AWS_ACCESS_KEY'],
            ENV['AWS_SECRET']
          )
        )
      end

      def self.ec2_client
        ::Aws::EC2::Client.new(
          region: 'us-east-1',
          credentials: ::Aws::Credentials.new(
            ENV['AWS_ACCESS_KEY'],
            ENV['AWS_SECRET']
          )
        )
      end

      def self.associate_address(eipalloc, id)
        retries ||= 0
        ec2_client.associate_address(allocation_id: eipalloc, instance_id: id)
      rescue ::Aws::EC2::Errors::InvalidInstanceID
        sleep 1
        puts 'retrying associate_address()'
        retry if (retries += 1) < 15
      end
    end
  end
end