# Copyright 2015-2017 Capital One Services, LLC
#
# 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 __future__ import absolute_import, division, print_function, unicode_literals

from collections import Counter
import logging
import itertools
import json
import time

from botocore.exceptions import ClientError
from concurrent.futures import as_completed
from dateutil.parser import parse as parse_date

from c7n.actions import ActionRegistry, BaseAction
from c7n.filters import (
    CrossAccountAccessFilter, Filter, FilterRegistry, AgeFilter, ValueFilter,
    ANNOTATION_KEY, FilterValidationError, OPERATORS)
from c7n.filters.health import HealthEventFilter

from c7n.manager import resources
from c7n.resources.kms import ResourceKmsKeyAlias
from c7n.query import QueryResourceManager
from c7n.utils import (
    camelResource,
    chunks,
    get_retry,
    local_session,
    set_annotation,
    type_schema,
    worker,
)
from c7n.resources.ami import AMI

log = logging.getLogger('custodian.ebs')

filters = FilterRegistry('ebs.filters')
actions = ActionRegistry('ebs.actions')


@resources.register('ebs-snapshot')
class Snapshot(QueryResourceManager):

    class resource_type(object):
        service = 'ec2'
        type = 'snapshot'
        enum_spec = (
            'describe_snapshots', 'Snapshots', None)
        detail_spec = None
        id = 'SnapshotId'
        filter_name = 'SnapshotIds'
        filter_type = 'list'
        name = 'SnapshotId'
        date = 'StartTime'
        dimension = None

        default_report_fields = (
            'SnapshotId',
            'VolumeId',
            'tag:InstanceId',
            'VolumeSize',
            'StartTime',
            'State',
        )

    filter_registry = FilterRegistry('ebs-snapshot.filters')