# -*- coding: utf-8 -*-
#
# Copyright 2015 SUSE 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.

# Import Python libs
from __future__ import absolute_import
import os

# Import Salt libs
from salt.modules.inspectlib.exceptions import InspectorSnapshotException
from salt.modules.inspectlib.dbhandle import DBHandle


class EnvLoader(object):
    '''
    Load environment.
    '''
    PID_FILE = '_minion_collector.pid'
    DB_FILE = '_minion_collector.db'
    DEFAULT_PID_PATH = '/var/run'
    DEFAULT_CACHE_PATH = '/var/cache/salt'

    def __init__(self, cachedir=None, piddir=None, pidfilename=None):
        '''
        Constructor.

        :param options:
        :param db_path:
        :param pid_file:
        '''
        if not cachedir and '__salt__' in globals():
            cachedir = globals().get('__salt__')['config.get']('inspector.db', '')

        self.dbfile = os.path.join(cachedir or self.DEFAULT_CACHE_PATH, self.DB_FILE)
        self.db = DBHandle(self.dbfile)

        if not piddir and '__salt__' in globals():
            piddir = globals().get('__salt__')['config.get']('inspector.pid', '')
        self.pidfile = os.path.join(piddir or self.DEFAULT_PID_PATH, pidfilename or self.PID_FILE)