from datetime import datetime, timedelta

def dt(with_time: bool = True, days_shift: int = 0, iso: bool = False):
    d = datetime.utcnow().replace(hour=0, minute=0, second=0, microsecond=0)
    if not with_time:
        d = d.date()
    if days_shift:
        d = d + timedelta(days=days_shift)
    if iso:
        d = d.isoformat()
    return d


def image_url(i, obj: str = None, dsp: str = None, size: int = None) -> str:
    url = f"https://image-url/{i}"
    for p in (obj, dsp, size):
        if p:
            url += f"/{p}"
    return url

def apple_image_url(i, obj: str, size: int = None) -> str:
    url = image_url(i, obj, "apple")
    sized = ".jpg/{w}x{h}bb.jpg"
    if size:
        sized = sized.format(w=size, h=size)
    return url + sized