from datetime import datetime
from enum import Flag, unique, global_enum
from pathlib import Path


''' 
Defining IOTTB_HOME_ABS here implies that it be immutable.
It is used here so that one could configure it. 
But after its used in __man__ this cannot be relied upon.
'''
IOTTB_HOME_ABS = Path().home() / 'IOTTB.db'

# TODO maybe wrap this into class to make it easier to pass along to different objects
# But will need more refactoring
DEVICE_METADATA_FILE = 'device_metadata.json'
CAPTURE_METADATA_FILE = 'capture_metadata.json'
TODAY_DATE_STRING = datetime.now().strftime('%d%b%Y').lower()  # TODO convert to function in utils or so

CAPTURE_FOLDER_BASENAME = 'capture_###'

AFFIRMATIVE_USER_RESPONSE = {'yes', 'y', 'true', 'Y', 'Yes', 'YES'}
NEGATIVE_USER_RESPONSE = {'no', 'n', 'N', 'No'}
YES_DEFAULT = AFFIRMATIVE_USER_RESPONSE.union({'', ' '})
NO_DEFAULT = NEGATIVE_USER_RESPONSE.union({'', ' '})


@unique
@global_enum
class ReturnCodes(Flag):
    SUCCESS = 0
    ABORTED = 1
    FAILURE = 2
    UNKNOWN = 3
    FILE_NOT_FOUND = 4
    FILE_ALREADY_EXISTS = 5
    INVALID_ARGUMENT = 6
    INVALID_ARGUMENT_VALUE = 7


def iottb_home_abs():
    return None