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#    Licensed under the Apache License, Version 2.0 (the "License"); you may
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#    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.

import random
import time
import uuid

from rally.common import cfg
from rally_openstack import scenario
from rally.task import atomic


CONF = cfg.CONF


class MonascaScenario(scenario.OpenStackScenario):
    """Base class for Monasca scenarios with basic atomic actions."""

    @atomic.action_timer("monasca.list_metrics")
    def _list_metrics(self, **kwargs):
        """Get list of user's metrics.

        :param kwargs: optional arguments for list query:
                       name, dimensions, start_time, etc
        :returns list of monasca metrics
        """
        return self.clients("monasca").metrics.list(**kwargs)

    @atomic.action_timer("monasca.create_metrics")
    def _create_metrics(self, **kwargs):
        """Create user metrics.

        :param kwargs: attributes for metric creation:
                       name, dimension, timestamp, value, etc
        """
        timestamp = int(time.time() * 1000)
        kwargs.update({"name": self.generate_random_name(),
                       "timestamp": timestamp,
                       "value": random.random(),
                       "value_meta": {
                           "key": str(uuid.uuid4())[:10]}})
        self.clients("monasca").metrics.create(**kwargs)