module Fog
  module Google
    class SQL
      ##
      # Creates a Cloud SQL instance as a clone of the source instance
      #
      # @see https://developers.google.com/cloud-sql/docs/admin-api/v1beta3/instances/clone

      class Real
        def clone_instance(instance_id, destination_name, options = {})
          # The @sql.instances.clone method is overrided by the standard Ruby clone method
          # so we cannot call it because it will just clone the @sql.instances instance.
          # Instead we need to find the proper method trough the discovered_methods.
          api_method = @sql.instances.discovered_methods.detect { |x| x.id == "sql.instances.clone" }
          parameters = {
            "project" => @project
          }

          body = {
            "cloneContext" => {
              "kind" => 'sql#cloneContext',
              "sourceInstanceName" => instance_id,
              "destinationInstanceName" => destination_name
            }
          }

          if options[:log_position]
            body["cloneContext"]["binLogCoordinates"] = {
              "kind" => 'sql#binLogCoordinates',
              "binLogFileName" => options[:log_filename],
              "binLogPosition" => options[:log_position]
            }
          end

          request(api_method, parameters, body)
        end
      end

      class Mock
        def clone_instance(instance_id, destination_name, _options = {})
          data[:instances][destination_name] = data[:instances][instance_id]
          data[:instances][destination_name]["instance"] = destination_name
          data[:ssl_certs][destination_name] = {}
          data[:backup_runs][destination_name] = {}

          operation = random_operation
          data[:operations][destination_name] ||= {}
          data[:operations][destination_name][operation] = {
            "kind" => 'sql#instanceOperation',
            "instance" => destination_name,
            "operation" => operation,
            "operationType" => "CREATE",
            "state" => Fog::Google::SQL::Operation::DONE_STATE,
            "userEmailAddress" => "google_client_email@developer.gserviceaccount.com",
            "enqueuedTime" => Time.now.iso8601,
            "startTime" => Time.now.iso8601,
            "endTime" => Time.now.iso8601
          }

          operation = random_operation
          data[:operations][instance_id] ||= {}
          data[:operations][instance_id][operation] = {
            "kind" => 'sql#instanceOperation',
            "instance" => instance_id,
            "operation" => operation,
            "operationType" => "CLONE",
            "state" => Fog::Google::SQL::Operation::DONE_STATE,
            "userEmailAddress" => "google_client_email@developer.gserviceaccount.com",
            "enqueuedTime" => Time.now.iso8601,
            "startTime" => Time.now.iso8601,
            "endTime" => Time.now.iso8601
          }

          body = {
            "kind" => 'sql#instancesClone',
            "operation" => operation
          }

          build_excon_response(body)
        end
      end
    end
  end
end
