stack_create.rb

require 'repositories/stack_event_repository'

module VCAP::CloudController
  class StackCreate
    class Error < ::StandardError
    end

    def initialize(user_audit_info)
      @user_audit_info = user_audit_info
    end

    def create(message)
      stack = VCAP::CloudController::Stack.create(
        name: message.name,
        description: message.description,
        state: message.state,
        state_reason: message.state_reason
      )

      MetadataUpdate.update(stack, message)

      Repositories::StackEventRepository.new.record_stack_create(stack, @user_audit_info, message.audit_hash)

      stack
    rescue Sequel::ValidationFailed => e
      validation_error!(e)
    end

    def validation_error!(error)
      error!('Name must be unique') if error.errors.on(:name)&.include?(:unique)
      error!(error.message)
    end

    def error!(message)
      raise Error.new(message)
    end
  end
end