import os
import logging
from configparser import ConfigParser


logger = logging.getLogger('app')


def str_to_bool(s):
    if s.lower() == 'true':
        return True
    elif s.lower() == 'false':
        return False
    else:
        raise ValueError


class Config(object):
    def __init__(self, env="dev"):
        """
        ENV : dev, prod
        """
        config = ConfigParser()

        def_config_file = os.path.join(os.path.abspath(os.path.dirname(__file__)), '', 'main.cfg')
        env_config_file = ''

        if env:
            env_config_file = os.path.join(os.path.abspath(os.path.dirname(__file__)), '', f'{env}.cfg')

        conf_files = [def_config_file]

        if not env:
            logger.warning('missing config environment variable')
        else:
            logger.info('env_config_load: {} file'.format(env_config_file))
            conf_files.append(env_config_file)

        logger.info('action=load-conf-file,files={}'.format(conf_files))
        config.read(conf_files)

        self.default_params = config.items('main')

        # configuration
        self.USE_SELENIUM = str_to_bool(self.get_config_param('USE_SELENIUM'))
        self.LOG_FILE = os.path.join(os.getcwd(), self.get_config_param('LOG_FILE'))
        self.BROWSER = self.get_config_param('BROWSER')
        self.PATH_BROWSER_FIREFOX = self.get_config_param('PATH_BROWSER_FIREFOX')
        self.SECRET_KEY = self.get_config_param('SECRET_KEY')
        self.HEADLESS = str_to_bool(self.get_config_param('HEADLESS'))
        self.MAX_NUM_CHAPTER = int(self.get_config_param('MAX_NUM_CHAPTER'))
        self.AWS_ACCESS_KEY_ID = self.get_config_param('AWS_ACCESS_KEY_ID')
        self.AWS_SECRET_ACCESS_KEY = self.get_config_param('AWS_SECRET_ACCESS_KEY')
        self.AWS_S3_REGION_NAME = self.get_config_param('AWS_S3_REGION_NAME')
        self.AWS_S3_END_POINT = self.get_config_param('AWS_S3_END_POINT')
        self.AWS_S3_BUCKET_NAME = self.get_config_param('AWS_S3_BUCKET_NAME')
        self.HOST_GATEWAY_IMAGE = self.get_config_param('HOST_GATEWAY_IMAGE')
        self.TYPE_LINK_IMAGE = self.get_config_param('TYPE_LINK_IMAGE')
        self.DOMAIN_TRUYENFULL = self.get_config_param('DOMAIN_TRUYENFULL')

    def get_config_param(self, param):
        if param in os.environ:
            logger.info('setting %s = %s' % (param, os.environ[param]))
            return os.environ[param]

        for t in self.default_params:
            if param.lower() in t:
                return t[1]
        logger.error('action=config-error-missing-param, parameter_name={}'.format(param))