# -*- coding: utf-8 -*-

# cl_config_utils - some helper functions for cloudlinux-config utility

#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT


def repack_dict(keys_dict, source_dict, func_convertor=None, default=False):
    result_dict = {}
    if func_convertor is None:
        def func_convertor(x):
            return int(x)

    for key, value in keys_dict.items():
        if key in source_dict:
            result_dict[value] = func_convertor(source_dict[key])
        else:
            result_dict[value] = default
    return result_dict


def min_num_notify_converter(val):
    try:
        result = int(val)
    except (ValueError, TypeError):
        return 1
    return result if result > 0 else 1


def time_convertor_to_dict(time_string):
    try:
        period = int(time_string)
        units = 'minutes'
    except (ValueError, TypeError):
        try:
            period = int(time_string[:-1])
            if 'h' in time_string:
                units = 'hours'
            elif 's' in time_string:
                units = 'seconds'
            elif 'd' in time_string:
                units = 'days'
            else:
                units = 'minutes'
        except TypeError:
            return None
    result_dict = {'period': period, 'unitOfTime': units}
    return result_dict


def str_to_boolean(string):
    if string.lower() in ['y', '1', 'on', 'true', 'yes']:
        return True
    return False

def str_to_int(string):
    """
    Converts (if possible) string value to int
    :return: None - if string value isn't convertable, int - success
    """
    try:
        return int(string)
    except (ValueError, TypeError):
        return None


def boolean_to_yes_no(bool_val):
    if not isinstance(bool_val, bool):
        return None
    if bool_val:
        return 'Y'
    return 'N'


def boolean_to_on_off(bool_val):
    if not isinstance(bool_val, bool):
        return None
    if bool_val:
        return 'on'
    return 'off'


def boolean_to_0_1(bool_val):
    if not isinstance(bool_val, bool):
        return None
    if bool_val:
        return '1'
    return '0'


def is_int(int_val):
    if not isinstance(int_val, int):
        return None
    if int_val < 0:
        return None
    return int_val


def is_positive_int(int_val):
    if not isinstance(int_val, int):
        return None
    if int_val < 1:
        return None
    return int_val


def time_unit_to_letter(unit):
    ret_dict = {'days': 'd', 'hours': 'h', 'minutes': 'm', 'seconds': 's'}
    if unit not in ret_dict:
        return None
    return ret_dict[unit]


def is_string(str_val):
    return isinstance(str_val, str) or None


def is_string_or_none(str_val):
    if is_string(str_val) or str_val is None:
        return True
    return None