# -*- coding: UTF-8 -*-
#  Copyright 2020 Zhejiang Lab. 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.
#  =============================================================
import configparser
from os import path


# Singleton mode
class ConfigUtils:
    def __init__(self, config_name):
        if not path.exists(config_name):
            raise FileNotFoundError("Configuration file not found!")
        config = configparser.RawConfigParser()
        config.read(config_name)
        self.config = config

    def conf_django_debug(self):
        try:
            _debug = self.config['httpserver']['DjangoDebug']
            return _debug == 'True'
        except Exception:
            return True

    def conf_logdir_base(self):
        try:
            return self.config['parser']['LogdirBase']
        except KeyError:
            raise Exception(
                'The root path of the visualization log must be set'
            )

    def conf_redis_host(self):
        try:
            return self.config['common']['RedisHost']
        except KeyError:
            return "localhost"

    def conf_redis_port(self):
        try:
            _port = self.config['common']['RedisPort']
            return int(_port)
        except Exception:
            return 6379

    def conf_redis_db(self):
        try:
            _db = self.config['common']['RedisDB']
            return int(_db)
        except Exception:
            return 1

    def conf_redis_password(self):
        try:
            return self.config['common']['RedisPassword']
        except KeyError:
            return None

    def conf_user_expiration_time(self):
        try:
            _time = self.config['common']['UserExpirationTime']
            return int(_time)
        except Exception:
            return 60


ConfigInstance = ConfigUtils(
    path.split(path.realpath(__file__))[0] + '/../../config.ini'
)