# Copyright 2008-2009 ITA Software, 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.

"""Nagcat single-test scheduler"""

from collections import defaultdict

from nagcat import errors, log
from nagcat import scheduler

class ObjectDummy(defaultdict):
    """Provide a replacement for a real ObjectParser"""

    def __init__(self):
        super(ObjectDummy, self).__init__(list)

    def types(self):
        return self.keys()

class NagcatDummy(scheduler.Scheduler):
    """For testing"""

    def build_tests(self, config):
        return []

    def nagios_status(self):
        return ObjectDummy()

class NagcatSimple(NagcatDummy):
    """Run only a single test, do not report to nagios.

    Useful for testing a new test template.
    """

    def _report(self, report):
        log.info("REPORT:\n%s" % report['text'])

    def new_test(self, config):
        new = super(NagcatSimple, self).new_test(config)
        new.addReportCallback(self._report)
        return new

    def build_tests(self, config, test_name=None, host=None, port=None):
        config = config.get(test_name, None)
        if not config:
            raise errors.InitError("Test '%s' not found in config file!"
                    % test_name)

        config = config.copy()
        config.setdefault('host', host)
        config.setdefault('port', port)
        config.setdefault('test', test_name)
        config.setdefault('description', test_name)
        return [self.new_test(config)]

    def start(self):
        assert self._startup
        self._startup = False
        del self._group_index

        runnable = self._registered.pop()
        return runnable.start()