# -*- coding: utf-8 -*- #
# Copyright 2020 Google LLC. All Rights Reserved.
#
# 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.
"""Command to describe a trigger."""

from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals

from googlecloudsdk.api_lib.eventarc import triggers
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.eventarc import flags
from googlecloudsdk.core import log

_DETAILED_HELP = {
    'DESCRIPTION':
        '{description}',
    'EXAMPLES':
        """ \
        To describe the trigger ``my-trigger'', run:

          $ {command} my-trigger
        """,
}


@base.ReleaseTracks(base.ReleaseTrack.BETA, base.ReleaseTrack.GA)
class Describe(base.DescribeCommand):
  """Describe an Eventarc trigger."""

  detailed_help = _DETAILED_HELP

  @staticmethod
  def Args(parser):
    flags.AddTriggerResourceArg(
        parser, 'The trigger to describe.', required=True)

  def Run(self, args):
    """Run the describe command."""
    client = triggers.CreateTriggersClient(self.ReleaseTrack())
    trigger_ref = args.CONCEPTS.trigger.Parse()
    trigger = client.Get(trigger_ref)
    event_type = client.GetEventType(trigger)
    self._active_time = triggers.TriggerActiveTime(event_type,
                                                   trigger.updateTime)
    return trigger

  def Epilog(self, resources_were_displayed):
    if resources_were_displayed and self._active_time:
      log.warning(
          'The trigger was recently modified and will become active by {}.'
          .format(self._active_time))
