module Meroku
  module Infrastructure
    class Node
      attr_accessor :instance, :tunnel, :ec2_client

      def initialize(ec2_client)
        @ec2_client = ec2_client
        result = ec2_client.try(
          :run_instances,
          {
            image_id: 'ami-841f46ff',  #was xenial 'ami-cd0f5cb6',
            min_count: 1,
            max_count: 1,
            key_name: 'meroku.id_rsa',
            instance_type: 't2.micro',
            tag_specifications: [
              {
                resource_type: "instance",
                tags: [
                  {
                    key: "Name",
                    value: "node",
                  },
                ],
              },
            ]
          }
        )
        @instance = result.instances.first if result
        @tunnel = Meroku::Tunnel.new(
          ip: "34.239.241.218",
          username: "ubuntu",
          keys: "~/crypto/meroku/meroku.id_rsa",
          verify_host_key: false,
          verbose: false
        )
        self
      end

      def associate_address
        retries ||= 0
        @ec2_client.associate_address(
          allocation_id: "eipalloc-139f7823",
          instance_id: @instance.try(:instance_id)
        )
        self
      rescue ::Aws::EC2::Errors::InvalidInstanceID => e
        print STDERR.print "."
        sleep 2
        retry if (retries += 1) < 15
      end
      
      def install_packages
        @tunnel.run "sudo apt-add-repository ppa:brightbox/ruby-ng\;"
        @tunnel.run "curl -s -o /tmp/modified-cedar-14.sh https://raw.githubusercontent.com/oystersauce8/meroku/master/modified-cedar-14.sh"
        @tunnel.run "sudo chmod 755 /tmp/modified-cedar-14.sh"
        @tunnel.run "/bin/bash -lc 'sudo /tmp/modified-cedar-14.sh'"
        #@tunnel.run "sudo apt-get update\;"
        @tunnel.run "sudo apt-get install -y ruby2.4 ruby2.4-dev"
        @tunnel.run "sudo apt-get install -y nginx libsqlite3-dev nodejs"
        self
      end

      def tweak_configuration
        @tunnel.run 'sudo adduser --disabled-password --gecos "" git'
        @tunnel.run 'sudo -u git mkdir /home/git/.ssh/'
        @tunnel.run 'sudo -u git touch /home/git/.ssh/authorized_keys'
      end
      
      def install_frontend_app
        @tunnel.run 'mkdir /home/ubuntu/.meroku'
        @tunnel.run "cd ~\; git clone https://github.com/oystersauce8/meroku\;"
        @tunnel.run "sudo cp ~/meroku/frontend/etc_nginx_sites-available_default /etc/nginx/sites-available/default"

        @tunnel.run "curl -o /home/ubuntu/.meroku/letsencrypt_fullchain.pem http://www.sam-we.com/dropbox/meroku-#{ENV['SECRET']}/letsencrypt_fullchain.pem"
        @tunnel.run "curl -o /home/ubuntu/.meroku/letsencrypt_privkey.pem http://www.sam-we.com/dropbox/meroku-#{ENV['SECRET']}/letsencrypt_privkey.pem"

        @tunnel.run "cd ~/.meroku/\; curl -O http://www.sam-we.com/dropbox/meroku-#{ENV['SECRET']}/ssh_host_keys.tgz"
        #@tunnel.run "cd ~/.meroku/\; sudo tar xf ssh_host_keys.tgz -C /etc/ssh/ --overwrite"
        @tunnel.run "cd ~/meroku/frontend/\; sudo gem install bundler\; bundle\;"
        @tunnel.run "(cd ~/meroku/frontend && RAILS_ENV=production bundle exec rails assets:precompile)"

        @tunnel.run "(cd ~/meroku/frontend && RAILS_ENV=production bundle exec rake db:migrate)"
        @tunnel.run "cd ~/meroku/frontend/\; bundle exec puma -d"
        @tunnel.run "sudo service nginx restart"
        @tunnel.run "sudo service ssh restart"
        self
      end

    end
  end
end