from __future__ import annotations

from app.models import Offer


def get_offer_skip_reason(
    offer: Offer,
    include_keywords: list[str],
    exclude_keywords: list[str],
    min_price_amount: int | None,
) -> str | None:
    haystack = f"{offer.title}\n{offer.description}".lower()

    if exclude_keywords and any(keyword in haystack for keyword in exclude_keywords):
        return "exclude_keyword"

    if (
        min_price_amount is not None
        and offer.source != "fl"
        and (offer.price_amount is None or offer.price_amount < min_price_amount)
    ):
        return "min_price_amount"

    if include_keywords and not any(keyword in haystack for keyword in include_keywords):
        return "include_keyword"

    return None


def is_relevant_offer(
    offer: Offer,
    include_keywords: list[str],
    exclude_keywords: list[str],
    min_price_amount: int | None,
) -> bool:
    return get_offer_skip_reason(offer, include_keywords, exclude_keywords, min_price_amount) is None