module Meroku
  module Infrastructure
    def self.spawn
      credentials = Aws::Credentials.new(ENV['AWS_ACCESS_KEY'], ENV['AWS_SECRET'])
      ec2_client = Aws::EC2::Client.new(region: 'us-east-1', credentials: credentials)
      ec2_client.run_instances(
        image_id: 'ami-cd0f5cb6',
        min_count: 1,
        max_count: 1,
        key_name: 'meroku.id_rsa',
        instance_type: 't2.micro',
      ).instances.first
    end

    def self.despawn
      resp = nil
      credentials = Aws::Credentials.new(ENV['AWS_ACCESS_KEY'], ENV['AWS_SECRET'])
      ec2 = Aws::EC2::Resource.new(region: 'us-east-1', credentials: credentials)
      running_instance = ec2.instances.detect { |i| i.exists? && i.state.code!=48 }
      resp = running_instance.terminate if running_instance
      resp
    end
  end
end