import os
from functools import reduce

__all__ = [
    'get_project_path',
    'deep_dict_update',
    'dict_remove',
    'equals_ignore_case',
    'to_bool',
]


def get_project_path():
    for anchor in ['.idea', '.git', 'config.yml', 'requirements.txt']:
        path = os.path.realpath(os.curdir)
        while anchor not in os.listdir(path):
            parent = os.path.dirname(path)
            if parent == path:
                path = None
                break
            else:
                path = parent
        if path is not None:
            return path
    return None


def deep_dict_update(d1, d2):
    for key in d1:
        if key not in d2:
            continue
        if isinstance(d1[key], dict) and isinstance(d2[key], dict):
            deep_dict_update(d1[key], d2[key])
        else:
            d1[key] = d2[key]
    for key in d2:
        if key not in d1:
            d1[key] = d2[key]


def dict_remove(d: dict, k) -> dict:
    result = d.copy()
    for key in tuple(k):
        del result[key]
    return result


def equals_ignore_case(a, b) -> bool:
    return str(a).upper() == str(b).upper() if a and b else False


_TRUE_STR = ['true', 't', 'yes', 'y', 'on']
_FALSE_STR = ['false', 'f', 'no', 'n', 'off']


def to_bool(v) -> bool:
    if isinstance(v, str):
        if reduce(lambda a, b: a or b, [equals_ignore_case(v, x) for x in _TRUE_STR]):
            return True
        if reduce(lambda a, b: a or b, [equals_ignore_case(v, x) for x in _FALSE_STR]):
            return False
    return bool(v)