created method for adding nameservers

app/controllers/repp/v1/registrar/nameservers_controller.rb

@@ -8,7 +8,7 @@ module Repp
         desc 'bulk nameserver change'
         param :data, Hash, required: true, desc: 'Object holding nameserver changes' do
           param :type, String, required: true, desc: 'Always set as "nameserver"'
-          param :id, String, required: true, desc: 'Hostname of replacable nameserver'
+          param :id, String, required: false, desc: 'Hostname of replacable nameserver'
           param :domains, Array, required: false, desc: 'Array of domain names qualified for ' \
                                                        'nameserver replacement'
           param :attributes, Hash, required: true, desc: 'Object holding new nameserver values' do
@@ -17,11 +17,16 @@ module Repp
             param :ipv6, Array, of: String, required: false, desc: 'Array of fixed IPv6 addresses'
           end
         end
+
         def update
-          affected, errored = current_user.registrar
-                                          .replace_nameservers(hostname,
-                                                               hostname_params[:data][:attributes],
-                                                               domains: domains_from_params)
+          affected, errored = if hostname.present?
+                                current_user.registrar.replace_nameservers(hostname,
+                                                                           hostname_params[:data][:attributes],
+                                                                           domains: domains_from_params)
+                              else
+                                current_user.registrar.add_nameservers(hostname_params[:data][:attributes],
+                                                                       domains: domains_from_params)
+                              end
 
           render_success(data: data_format_for_success(affected, errored))
         rescue ActiveRecord::RecordInvalid => e
@@ -47,7 +52,7 @@ module Repp
         end
 
         def hostname_params
-          params.require(:data).require(%i[type id])
+          params.require(:data).require(%i[type])
           params.require(:data).require(:attributes).require([:hostname])
 
           params.permit(data: [
@@ -58,10 +63,12 @@ module Repp
         end
 
         def hostname
-          hostname_params[:data][:id]
+          hostname_params[:data][:id] || nil
         end
 
         def verify_nameserver_existance
+          return true if hostname.nil?
+
           current_user.registrar.nameservers.find_by!(hostname: hostname)
         end
       end

app/models/registrar.rb

@@ -43,6 +43,7 @@ class Registrar < ApplicationRecord
   after_commit :update_whois_records
   def update_whois_records
     return true unless changed? && (changes.keys & WHOIS_TRIGGERS).present?
+
     RegenerateRegistrarWhoisesJob.perform_later id
   end
 
@@ -175,6 +176,36 @@ class Registrar < ApplicationRecord
     end
   end
 
+  def add_nameservers(new_attributes, domains: [])
+    transaction do
+      domain_scope = domains.dup
+      domain_list = []
+      failed_list = []
+
+      return if domains.empty?
+
+      domain_scope.each do |domain_name|
+        domain = self.domains.find_by('name = ? OR name_puny = ?', domain_name, domain_name)
+
+        if !domain.present? || domain_not_updatable?(hostname: new_attributes[:hostname], domain: domain)
+          failed_list << domain_name
+          next
+        end
+
+        new_nameserver = Nameserver.new
+        new_nameserver.domain = domain
+        new_nameserver.attributes = new_attributes
+        new_nameserver.save!
+
+        domain_scope.delete_if { |i| i == domain.name || i == domain.name_puny }
+        domain_list << domain_name
+      end
+
+      self.domains.where(name: domain_list).find_each(&:update_whois_record) if domain_list.any?
+      [domain_list.uniq.sort, (domain_scope + failed_list).uniq.sort]
+    end
+  end
+
   def vat_country=(country)
     self.address_country_code = country.alpha2
   end
@@ -198,6 +229,7 @@ class Registrar < ApplicationRecord
 
   def billing_email
     return contact_email if self[:billing_email].blank?
+
     self[:billing_email]
   end