# == Schema Information
#
# Table name: terraform_aws_backends
#
#  id                    :integer          not null, primary key
#  label                 :string
#  aws_region            :string
#  aws_access_key_id     :string
#  aws_secret_access_key :string
#  created_at            :datetime         not null
#  updated_at            :datetime         not null
#

require 'ruby_terraform'

class Backends::TerraformAws < ApplicationRecord
  include Backends::Terraform

  has_many :mini_environments, as: :backend

  self.table_name = 'terraform_aws_backends'

  def self.label
    'Amazon Web Services'
  end

  def type_and_id
    "#{self.class.name}=#{id}"
  end

  def build(mini_environment)
    GovukGuix::GenerateStartCommandJob.enqueue(
      mini_environment.id
    )
  end

  def start(mini_environment)
    logger.info "Setting up #{mini_environment.name}"

    with_terraform(mini_environment, 'terraform/aws') do
      RubyTerraform.apply(
        vars: terraform_variables(mini_environment),
        auto_approve: true
      )
    end
  end

  def destroy(mini_environment)
    with_terraform(mini_environment, 'terraform/aws') do
      RubyTerraform.destroy(
        vars: terraform_variables(mini_environment),
        force: true
      )
    end
  end

  def terraform_variables(mini_environment)
    mini_environment.backend_data.merge(
      aws_region: aws_region,
      slug: mini_environment.name.parameterize,
      ssh_public_key: ssh_public_key,
      start_command: mini_environment.start_command
    )
  end

  def ssh_public_key
    File.open("#{ENV['HOME']}/.ssh/id_rsa.pub", &:readline)
  end
end