# 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.

from six.moves import configparser
import os
import re

DEFAULT_INDEX_FORMAT = 'logstash-%Y.%m.%d'

ES_URL = 'http://logstash.openstack.org:80/elasticsearch'
LS_URL = 'http://logstash.openstack.org'
DB_URI = 'mysql+pymysql://query:query@logstash.openstack.org/subunit2sql'

JOBS_RE = 'dsvm'
CI_USERNAME = 'jenkins'

GERRIT_QUERY_FILE = 'queries'
GERRIT_HOST = 'review.openstack.org'

PID_FN = '/var/run/elastic-recheck/elastic-recheck.pid'

# Not all teams actively used elastic recheck for categorizing their
# work, so to keep the uncategorized page more meaningful, we exclude
# jobs from teams that don't use this toolchain.
EXCLUDED_JOBS = (
    # Docs team
    "api-site",
    "operations-guide",
    "openstack-manuals",
    # Ansible
    "ansible",
    # Puppet
    "puppet",
)

EXCLUDED_JOBS_REGEX = re.compile('(' + '|'.join(EXCLUDED_JOBS) + ')')

INCLUDED_PROJECTS_REGEX = "(^openstack/|devstack|grenade)"

# TODO(dmsimard): Revisit this query once Zuul v2 is no longer supported
# Let's value legibility over pep8 line width here...
ALL_FAILS_QUERY = (
    '('
    '(filename:"job-output.txt" AND message:"POST-RUN END" AND message:"project-config/playbooks/base/post-ssh.yaml")'  # flake8: noqa
    ' OR '
    '(filename:"console.html" AND (message:"[Zuul] Job complete" OR message:"[SCP] Copying console log" OR message:"Grabbing consoleLog"))'  # flake8: noqa
    ')'
    ' AND build_status:"FAILURE"'
    ' AND build_queue:"gate"'
    ' AND voting:"1"'
)

UNCAT_MAX_SEARCH_SIZE = 30000


class Config(object):

    def __init__(self,
                 config_file=None,
                 config_obj=None,
                 es_url=None,
                 ls_url=None,
                 db_uri=None,
                 jobs_re=None,
                 ci_username=None,
                 pid_fn=None,
                 es_index_format=None,
                 all_fails_query=None,
                 excluded_jobs_regex=None,
                 included_projects_regex=None,
                 uncat_search_size=None,
                 gerrit_query_file=None):

        self.es_url = es_url or ES_URL
        self.ls_url = ls_url or LS_URL
        self.db_uri = db_uri or DB_URI
        self.jobs_re = jobs_re or JOBS_RE
        self.ci_username = ci_username or CI_USERNAME
        self.es_index_format = es_index_format or DEFAULT_INDEX_FORMAT
        self.pid_fn = pid_fn or PID_FN
        self.ircbot_channel_config = None
        self.irc_log_config = None
        self.all_fails_query = all_fails_query or ALL_FAILS_QUERY
        self.excluded_jobs_regex = excluded_jobs_regex or EXCLUDED_JOBS_REGEX
        self.included_projects_regex = \
            included_projects_regex or INCLUDED_PROJECTS_REGEX
        self.uncat_search_size = uncat_search_size or UNCAT_MAX_SEARCH_SIZE
        self.gerrit_query_file = gerrit_query_file or GERRIT_QUERY_FILE

        if config_file or config_obj:
            if config_obj:
                config = config_obj
            else:
                config = configparser.ConfigParser(
                    {'es_url': ES_URL,
                     'ls_url': LS_URL,
                     'db_uri': DB_URI,
                     'server_password': None,
                     'ci_username': CI_USERNAME,
                     'jobs_re': JOBS_RE,
                     'pidfile': PID_FN,
                     'index_format': DEFAULT_INDEX_FORMAT,
                     'query_file': GERRIT_QUERY_FILE
                     }
                )
                config.read(config_file)

            if config.has_section('data_source'):
                self.es_url = config.get('data_source', 'es_url')
                self.ls_url = config.get('data_source', 'ls_url')
                self.db_uri = config.get('data_source', 'db_uri')
                self.es_index_format = config.get('data_source',
                                                  'index_format')

            if config.has_section('recheckwatch'):
                self.ci_username = config.get('recheckwatch', 'ci_username')
                self.jobs_re = config.get('recheckwatch', 'jobs_re')

            if config.has_section('gerrit'):
                self.gerrit_user = config.get('gerrit', 'user')
                self.gerrit_query_file = config.get('gerrit', 'query_file')
                # workaround for python api change https://docs.python.org/3/library/configparser.html#fallback-values
                try:
                    self.gerrit_host = config.get('gerrit',
                                                  'host',
                                                  fallback=GERRIT_HOST)
                except TypeError:
                    self.gerrit_host = config.get('gerrit',
                                                  'host',
                                                  GERRIT_HOST)
                self.gerrit_host_key = config.get('gerrit', 'key')

            if config.has_section('ircbot'):
                self.pid_fn = os.path.expanduser(config.get('ircbot',
                                                            'pidfile'))
                self.ircbot_nick = config.get('ircbot', 'nick')
                self.ircbot_pass = config.get('ircbot', 'pass')
                self.ircbot_server = config.get('ircbot', 'server')
                self.ircbot_port = config.getint('ircbot', 'port')
                self.ircbot_server_password = config.get('ircbot',
                                                         'server_password')
                self.ircbot_channel_config = config.get('ircbot',
                                                        'channel_config')
            if config.has_option('ircbot', 'log_config'):
                self.irc_log_config = config.get('ircbot', 'log_config')