add submitter update endpoint

app/controllers/api/submitters_controller.rb

@@ -30,5 +30,79 @@ module Api
 
       render json: Submitters::SerializeForApi.call(@submitter, with_template: true, with_events: true)
     end
+
+    def update
+      if @submitter.completed_at?
+        return render json: { error: 'Submitter has already completed the submission.' }, status: :unprocessable_entity
+      end
+
+      role = @submitter.submission.template_submitters.find { |e| e['uuid'] == @submitter.uuid }['name']
+
+      normalized_params, new_attachments =
+        Submissions::NormalizeParamUtils.normalize_submitter_params!(submitter_params.merge(role:), @submitter.template,
+                                                                     for_submitter: @submitter)
+
+      Submissions::CreateFromSubmitters.maybe_set_template_fields(@submitter.submission,
+                                                                  [normalized_params],
+                                                                  submitter_uuid: @submitter.uuid)
+
+      assign_submitter_attrs(@submitter, normalized_params)
+
+      ApplicationRecord.transaction do
+        Submissions::NormalizeParamUtils.save_default_value_attachments!(new_attachments, [@submitter])
+
+        @submitter.save!
+
+        @submitter.submission.save!
+      end
+
+      if @submitter.completed_at?
+        ProcessSubmitterCompletionJob.perform_later(@submitter)
+      elsif normalized_params[:send_email] || normalized_params[:send_sms]
+        Submitters.send_signature_requests([@submitter])
+      end
+
+      render json: Submitters::SerializeForApi.call(@submitter, with_template: false, with_events: false)
+    end
+
+    def submitter_params
+      submitter_params = params.key?(:submitter) ? params.require(:submitter) : params
+
+      submitter_params.permit(
+        :send_email, :send_sms, :uuid, :name, :email, :role, :completed, :phone, :application_key,
+        { values: {}, readonly_fields: [], message: %i[subject body],
+          fields: [%i[name default_value readonly validation_pattern invalid_message]] }
+      )
+    end
+
+    private
+
+    def assign_submitter_attrs(submitter, attrs)
+      submitter.email = Submissions.normalize_email(attrs[:email]) if attrs.key?(:email)
+      submitter.phone = attrs[:phone].to_s.gsub(/[^0-9+]/, '') if attrs.key?(:phone)
+      submitter.values = submitter.values.merge(attrs[:values].to_unsafe_h) if attrs[:values]
+      submitter.completed_at = attrs[:completed] ? Time.current : submitter.completed_at
+      submitter.application_key = attrs[:application_key] if attrs.key?(:application_key)
+
+      assign_preferences(submitter, attrs)
+
+      submitter
+    end
+
+    def assign_preferences(submitter, attrs)
+      submitter_preferences = Submitters.normalize_preferences(submitter.account, current_user, attrs)
+
+      if submitter_preferences.key?('send_email')
+        submitter.preferences['send_email'] = submitter_preferences['send_email']
+      end
+
+      submitter.preferences['send_sms'] = submitter_preferences['send_sms'] if submitter_preferences.key?('send_sms')
+
+      return unless submitter_preferences.key?('email_message_uuid')
+
+      submitter.preferences['email_message_uuid'] = submitter_preferences['email_message_uuid']
+
+      submitter
+    end
   end
 end