#!/usr/bin/env python
# -*- encoding: utf-8 -*-
#
# Copyright © 2012-2014 Julien Danjou
#
# Author: Julien Danjou <julien@danjou.info>
#
# 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 line tool for creating meter for Ceilometer.
"""

import logging
import sys

from oslo.config import cfg

from ceilometer.openstack.common import context
from ceilometer.openstack.common import timeutils
from ceilometer import pipeline
from ceilometer import sample
from ceilometer import service
from ceilometer import transformer


def send_sample():
    cfg.CONF.register_cli_opts([
        cfg.StrOpt('sample-name',
                   short='n',
                   help='Meter name.',
                   required=True),
        cfg.StrOpt('sample-type',
                   short='y',
                   help='Meter type (gauge, delta, cumulative).',
                   default='gauge',
                   required=True),
        cfg.StrOpt('sample-unit',
                   short='U',
                   help='Meter unit.',
                   default=None),
        cfg.IntOpt('sample-volume',
                   short='l',
                   help='Meter volume value.',
                   default=1),
        cfg.StrOpt('sample-resource',
                   short='r',
                   help='Meter resource id.',
                   required=True),
        cfg.StrOpt('sample-user',
                   short='u',
                   help='Meter user id.'),
        cfg.StrOpt('sample-project',
                   short='p',
                   help='Meter project id.'),
        cfg.StrOpt('sample-timestamp',
                   short='i',
                   help='Meter timestamp.',
                   default=timeutils.utcnow().isoformat()),
        cfg.StrOpt('sample-metadata',
                   short='m',
                   help='Meter metadata.'),
    ])

    service.prepare_service()

    # Set up logging to use the console
    console = logging.StreamHandler(sys.stderr)
    console.setLevel(logging.DEBUG)
    formatter = logging.Formatter('%(message)s')
    console.setFormatter(formatter)
    root_logger = logging.getLogger('')
    root_logger.addHandler(console)
    root_logger.setLevel(logging.DEBUG)

    pipeline_manager = pipeline.setup_pipeline(
        transformer.TransformerExtensionManager(
            'ceilometer.transformer',
        ),
    )

    with pipeline_manager.publisher(context.get_admin_context()) as p:
        p([sample.Sample(
            name=cfg.CONF.sample_name,
            type=cfg.CONF.sample_type,
            unit=cfg.CONF.sample_unit,
            volume=cfg.CONF.sample_volume,
            user_id=cfg.CONF.sample_user,
            project_id=cfg.CONF.sample_project,
            resource_id=cfg.CONF.sample_resource,
            timestamp=cfg.CONF.sample_timestamp,
            resource_metadata=cfg.CONF.sample_metadata and eval(
                cfg.CONF.sample_metadata))])