from datetime import datetime

from fastapi.templating import Jinja2Templates

templates = Jinja2Templates(directory="web/templates")


def _datefmt(value: datetime | None, fmt: str = "%d.%m.%Y %H:%M") -> str:
    if value is None:
        return "—"
    return value.strftime(fmt)


def _price(value) -> str:
    if value is None:
        return "—"
    return f"{float(value):,.2f} ₽".replace(",", " ")


templates.env.filters["datefmt"] = _datefmt
templates.env.filters["price"] = _price