from abc import ABC, abstractmethod


class BaseProfile(ABC):
    name: str = ""
    label: str = ""
    # Fields required to configure this engine, shown in the add-hotel form
    # Each entry: {"key": "hotel_id", "label": "Hotel ID", "help": "e.g. THREEWAYS"}
    required_params: list[dict] = []

    @classmethod
    @abstractmethod
    def detect(cls, url: str) -> dict | None:
        """Return extracted params dict if URL matches this engine, else None."""

    @abstractmethod
    async def fetch_arrival_dates(self, client, params: dict) -> list[str]:
        """Return list of bookable arrival date strings YYYY-MM-DD."""

    @abstractmethod
    async def fetch_night_rates(self, client, params: dict, arrival: str, nights: int = 1) -> list[dict]:
        """Return list of room/rate dicts for the stay.
        Each dict must have: roomId, rateId, availability, prices[{amountBeforeTax, amountAfterTax}], currencyCode
        prices list has one entry per night when nights > 1.
        """