from pydantic_settings import BaseSettings
from pydantic import model_validator
from pydantic import ConfigDict
from typing import Optional


class Settings(BaseSettings):
    model_config = ConfigDict(extra="ignore")

    # Required — fail fast at import time if unset.
    DATABASE_URL: str = ""

    SENDGRID_API_KEY: Optional[str] = None
    SENDGRID_FROM_EMAIL: str = "peter@research.bike"
    SENDGRID_REPLY_TO: str = "peter@research.bike"
    EMAIL_BACKEND: str = "console"
    LUCKY_CA_URL: str = "https://www.luckyncal.com"
    # Swiftly product API (replaces Playwright path). The bearer JWT is
    # auto-minted at request time via app.services.swiftly_auth.get_token().
    LUCKY_STORE_ID: str = "757"
    SWIFTLY_API_BASE: str = "https://prod.swiftlyapi.net"
    SWIFTLY_CATEGORIES_URL: str = "https://luckysupermarkets.com/categories"
    AI_IMAGE_ENABLED: bool = False
    AI_IMAGE_PROVIDER: Optional[str] = None
    AI_IMAGE_API_KEY: Optional[str] = None
    LOG_LEVEL: str = "INFO"
    SECRET_KEY: str = "dev-secret-key"

    # Auth (R1-B+D)
    ADMIN_TOKEN: str = ""
    SESSION_PASSWORD: str = ""
    ADMIN_EMAIL: str = ""
    APP_BASE_URL: str = "http://localhost"

    # Ollama Cloud LLM (used for ingredient→grocery LLM matching second pass)
    OLLAMA_BASE_URL: str = "https://ollama.com/v1"
    OLLAMA_API_KEY: Optional[str] = None
    OLLAMA_MODEL: str = "gpt-oss:20b"

    # Sprint 12: Spoonacular external recipe search. Free tier is
    # 150 points/day. ComplexSearch = 1 point + 0.01 per result. The
    # /information endpoint = 1 point per call. The recipe_search
    # router gates calls to stay under 140 points/day to leave a
    # safety margin.
    SPOONACULAR_API_KEY: Optional[str] = None

    FAMILY_EMAIL_1: Optional[str] = None
    FAMILY_EMAIL_2: Optional[str] = None
    RECIPES_EMAIL: Optional[str] = None

    model_config = ConfigDict(extra="ignore", env_file=".env")

    @model_validator(mode="after")
    def _require_database_url(self) -> "Settings":
        if not self.DATABASE_URL:
            raise RuntimeError("DATABASE_URL is required")
        return self


settings = Settings()