text: # 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 import urls
  from django.utils.translation import string_concat
  from django.utils.translation import ugettext_lazy as _
  from django.utils.translation import ungettext_lazy
  
  from horizon import tables
  
  from openstack_dashboard import api
  from openstack_dashboard.usage import quotas
  
  
  class DeleteKeyPairs(tables.DeleteAction):
      policy_rules = (("compute", "os_compute_api:os-keypairs:delete"),)
      help_text = _("Removing a key pair can leave OpenStack resources orphaned."
                    " You should not remove a key pair unless you are certain it"
                    " is not being used anywhere.")
  
      @staticmethod
      def action_present(count):
          return ungettext_lazy(
              u"Delete Key Pair",
              u"Delete Key Pairs",
              count
          )
  
      @staticmethod
      def action_past(count):
          return ungettext_lazy(
              u"Deleted Key Pair",
              u"Deleted Key Pairs",
              count
          )
  
      def delete(self, request, obj_id):
          api.nova.keypair_delete(request, obj_id)
  
  
  class QuotaKeypairMixin(object):
      def allowed(self, request, datum=None):
          usages = quotas.tenant_quota_usages(request, targets=('key_pairs', ))
          usages.tally('key_pairs', len(self.table.data))
          if usages['key_pairs']['available'] <= 0:
              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)"))
              return False
          else:
              classes = [c for c in self.classes if c != "disabled"]
              self.classes = classes
              return True
  
  
  class ImportKeyPair(QuotaKeypairMixin, tables.LinkAction):
      name = "import"
      verbose_name = _("Import Public Key")
      url = "horizon:project:key_pairs:import"
      classes = ("ajax-modal",)
      icon = "upload"
      policy_rules = (("compute", "os_compute_api:os-keypairs:create"),)
  
      def allowed(self, request, keypair=None):
          if super(ImportKeyPair, self).allowed(request, keypair):
              self.verbose_name = _("Import Public Key")
          return True
  
  
  class CreateLinkNG(QuotaKeypairMixin, tables.LinkAction):
      name = "create-keypair-ng"
      verbose_name = _("Create Key Pair")
      url = "horizon:project:key_pairs:index"
      classes = ("btn-launch",)
      icon = "plus"
      policy_rules = (("compute", "os_compute_api:os-keypairs:create"),)
  
      def get_default_attrs(self):
          url = urls.reverse(self.url)
          ngclick = "modal.createKeyPair({ successUrl: '%s' })" % url
          self.attrs.update({
              'ng-controller': 'KeypairController as modal',
              'ng-click': ngclick
          })
          return super(CreateLinkNG, self).get_default_attrs()
  
      def get_link_url(self, datum=None):
          return "javascript:void(0);"
  
      def allowed(self, request, keypair=None):
          if super(CreateLinkNG, self).allowed(request, keypair):
              self.verbose_name = _("Create Key Pair")
          return True
  
  
  class KeypairsFilterAction(tables.FilterAction):
  
      def filter(self, table, keypairs, filter_string):
          """Naive case-insensitive search."""
          query = filter_string.lower()
          return [keypair for keypair in keypairs
                  if query in keypair.name.lower()]
  
  
  class KeyPairsTable(tables.DataTable):
      detail_link = "horizon:project:key_pairs:detail"
      name = tables.Column("name", verbose_name=_("Key Pair Name"),
                           link=detail_link)
      fingerprint = tables.Column("fingerprint", verbose_name=_("Fingerprint"))
  
      def get_object_id(self, keypair):
          return keypair.name
  
      class Meta(object):
          name = "keypairs"
          verbose_name = _("Key Pairs")
          table_actions = (CreateLinkNG, ImportKeyPair, DeleteKeyPairs,
                           KeypairsFilterAction,)
          row_actions = (DeleteKeyPairs,)
  