ManageIQ/manageiq-content

#
# Description: This method prepares arguments and parameters for execution
module ManageIQ
  module Automate
    module Service
      module Generic
        module StateMachines
          module GenericLifecycle
            class PreProcess
              def initialize(handle = $evm)
                @handle = handle
              end

              def main
                @handle.log(:info, "Starting preprocess")

                begin
                  dump_root
                  options = {}
                  # user can insert options to override options from dialog
                  service.preprocess(service_action, options)
                  @handle.root['ae_result'] = 'ok'
                  @handle.log(:info, "Ending preprocess")
                rescue => err
                  @handle.root['ae_result'] = 'error'
                  @handle.root['ae_reason'] = err.message
                  @handle.log(:error, "Error in preprocess: #{err.message}")
                  update_task(err.message)
                end
              end

              private

              def dump_root
                @handle.log(:info, "Root:<$evm.root> Attributes - Begin")
                @handle.root.attributes.sort.each { |k, v| @handle.log(:info, "  Attribute - #{k}: #{v}") }
                @handle.log(:info, "Root:<$evm.root> Attributes - End")
                @handle.log(:info, "")
              end

              def update_task(message)
                @handle.root['service_template_provision_task'].try { |task| task.miq_request.user_message = message }
              end

              def service
                @handle.root["service"].tap do |service|
                  if service.nil?
                    @handle.log(:error, 'Service is nil')
                    raise 'Service not found'
                  end
                end
              end

              def service_action
                @handle.root["service_action"].tap do |action|
                  unless %w(Provision Retirement Reconfigure).include?(action)
                    @handle.log(:error, "Invalid service action: #{action}")
                    raise "Invalid service_action"
                  end
                end
              end
            end
          end
        end
      end
    end
  end
end

ManageIQ::Automate::Service::Generic::StateMachines::GenericLifecycle::PreProcess.new.main