galoshes/galoshes

require_relative 'service_compute'

class Chef::Provider::GaloshesVpc < Chef::Provider::GaloshesBase
  include Galoshes::ComputeService

  def load_current_resource
    @collection = Fog::Compute::AWS::Vpcs.new(:service => service)
    vpcs = @collection.all('tag:Name' => new_resource.name)
    @current_resource = @collection.new(:id => new_resource.name, :service => service)
    @current_resource.reload
    Chef::Log.debug("vpcs: #{vpcs.to_json}")
    if vpcs.size != 1
      Chef::Log.info("Couldn't find vpc[#{new_resource.name}]. Found #{vpcs.size}")
      @exists = false
    else
      Chef::Log.info("Found vpc[#{new_resource.name}]. Setting attributes.")
      @exists = true
      @current_resource = vpcs[0]
    end
    Chef::Log.debug("load_current_resource @current_resource: #{@current_resource.to_json}")

    new_resource.tags['Name'] = new_resource.name
  end

  def action_create
    Chef::Log.debug("new_resource: #{new_resource}")

    converge_unless(@exists, "create #{resource_str}") do
      create_attributes = [:cidr_block, :tenancy, :dhcp_options_id, :tags, :dhcp_options_id,]
      copy_attributes(create_attributes)
      Chef::Log.debug("current_resource before save: #{current_resource}")
      result = @current_resource.save
      Chef::Log.debug("create as result: #{result}")

      new_resource.id(@current_resource.id)
    end
  end

  def action_update
    verify_attribute(:tags) do
      service.create_tags(@current_resource.id, new_resource.tags)
    end

    verify_attribute(:dhcp_options_id) do
      service.associate_dhcp_options(new_resource.dhcp_options_id, @current_resource.id)
    end

    [%w(enable_dns_support enableDnsSupport EnableDnsSupport),
     %w(enable_dns_hostnames enableDnsHostnames EnableDnsHostnames)].each do |attr, aws_describe_attr, aws_modify_attr|
      cur_value = service.describe_vpc_attribute(@current_resource.id, aws_describe_attr)
      new_value = new_resource.send(attr)
      converge_unless(new_value == cur_value, "update #{attr} from '#{cur_value}' to '#{new_value}'") do
        service.modify_vpc_attribute(@current_resource.id, "#{aws_modify_attr}.Value" => new_value)
      end
    end

    verify_attribute(:tenancy) do
      OpenStruct.new(:status => "Cannot update the tenancy on VPCs to #{new_resource.tenancy}")
    end
  end
end