import os
import typing
import uuid

TEXTCHARS = bytearray({7, 8, 9, 10, 12, 13, 27} |
                      set(range(0x20, 0x100)) - {0x7f})


def delete_root_slash(path: str) -> str:
  if path.startswith('/'):
    path = path[1:]
  return path


def add_fast_api_root(path):
    fast_api_root = os.environ.get('FASTAPI_ROOT_URL')
    if path.startswith(fast_api_root):
      return path
    return os.path.join(os.environ.get('FASTAPI_ROOT_URL'), delete_root_slash(path))

def remove_fastapi_root(path):
  return path.replace(os.environ.get('FASTAPI_ROOT_URL'), "")

def is_binary_file(file_path: str):
    with open(file_path, 'rb') as f:
        content = f.read(1024)
        return bool(content.translate(None, TEXTCHARS))


def get_or_create_dir(path: str) -> str:
    if not os.path.exists(path):
      os.mkdir(path)
    return path


def get_filename(file: typing.IO, default: str = uuid.uuid4()) -> str:
    if hasattr(file, 'name'):
        return file.name
    elif hasattr(file, 'filename'):
        return file.filename
    else:
        return f"{default}.py"


def remove_if_exists(path):
  if os.path.exists(path) and os.path.isfile(path):
    os.remove(path)


def get_parent_dir(path):
    return os.path.abspath(os.path.join(path, os.pardir))


def get_ancestor(path: str, levels: int = 1):
  for i in range(levels):
    path = get_parent_dir(path)
  return path


def get_filename_from_path(path):
  return os.path.split(path)[-1]