from logging.handlers import RotatingFileHandler
from singleton import Singleton

import logging
import constants


class Logger(metaclass=Singleton):
    def __init__(self):
        self.logger = logging.getLogger(constants.LOGGER_NAME)
        self.logger.setLevel(logging.DEBUG)

        file_handler = RotatingFileHandler(constants.LOG_FILE,
                                           maxBytes=constants.MAX_LOG_FILE_SIZE_BYTES,
                                           encoding='UTF-8',
                                           backupCount=1)
        file_handler.setLevel(logging.DEBUG)

        console_handler = logging.StreamHandler()
        console_handler.setLevel(logging.INFO)

        formatter = logging.Formatter(fmt='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
                                      datefmt='%m-%d %H:%M')
        file_handler.setFormatter(formatter)
        console_handler.setFormatter(formatter)

        self.logger.addHandler(file_handler)
        self.logger.addHandler(console_handler)

    def get_logger(self):
        return self.logger


logger_instance = Logger().get_logger()