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  # Copyright 2012 Nebula, Inc.
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  
  from django.utils.translation import string_concat  # noqa
  from django.utils.translation import ugettext_lazy as _
  
  from horizon import tables
  
  from openstack_dashboard import api
  from openstack_dashboard.usage import quotas
  
  
  class DeleteKeyPairs(tables.DeleteAction):
      data_type_singular = _("Key Pair")
      data_type_plural = _("Key Pairs")
  
      def delete(self, request, obj_id):
          api.nova.keypair_delete(request, obj_id)
  
  
  class ImportKeyPair(tables.LinkAction):
      name = "import"
      verbose_name = _("Import Key Pair")
      url = "horizon:project:access_and_security:keypairs:import"
      classes = ("ajax-modal", "btn-upload")
  
  
  class CreateKeyPair(tables.LinkAction):
      name = "create"
      verbose_name = _("Create Key Pair")
      url = "horizon:project:access_and_security:keypairs:create"
      classes = ("ajax-modal", "btn-create")
  
      def allowed(self, request, keypair=None):
          usages = quotas.tenant_quota_usages(request)
          count = len(self.table.data)
          if (usages.get('key_pairs')
                  and usages['key_pairs']['quota'] <= count):
              if "disabled" not in self.classes:
                  self.classes = [c for c in self.classes] + ['disabled']
                  self.verbose_name = string_concat(self.verbose_name, ' ',
                                                    _("(Quota exceeded)"))
          else:
              self.verbose_name = _("Create Key Pair")
              classes = [c for c in self.classes if c != "disabled"]
              self.classes = classes
          return True
  
  
  class KeypairsTable(tables.DataTable):
      name = tables.Column("name", verbose_name=_("Key Pair Name"))
      fingerprint = tables.Column("fingerprint", verbose_name=_("Fingerprint"))
  
      def get_object_id(self, keypair):
          return keypair.name
  
      class Meta:
          name = "keypairs"
          verbose_name = _("Key Pairs")
          table_actions = (CreateKeyPair, ImportKeyPair, DeleteKeyPairs,)
          row_actions = (DeleteKeyPairs,)
  