from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    app_name: str = "RevAI API"
    version: str = "1.0.0"
    debug: bool = True

    database_url: str = "sqlite:///./revai.db"
    secret_key: str = "change-me-in-production-use-a-long-random-string"
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 1440

    stripe_secret_key: str = ""
    stripe_webhook_secret: str = ""

    # RapidAPI integration
    rapidapi_proxy_secret: str = ""

    # Tier limits
    free_predictions: int = 100
    maker_predictions: int = 5000
    growth_predictions: int = 50000
    scale_predictions: int = 500000

    free_models: int = 1
    maker_models: int = 3
    growth_models: int = 10
    scale_models: int = 999

    free_rpm: int = 60
    maker_rpm: int = 100
    growth_rpm: int = 500
    scale_rpm: int = 2000

    class Config:
        env_file = ".env"


@lru_cache()
def get_settings() -> Settings:
    return Settings()