from pydantic_settings import BaseSettings
from pydantic import field_validator
from functools import lru_cache


class Settings(BaseSettings):
    frappe_url: str = "http://localhost:8000"
    frappe_api_key: str = ""
    frappe_api_secret: str = ""
    frappe_site_name: str = ""  # optional: for multi-site Docker setups

    # Safety: set to True to block destructive operations
    read_only_mode: bool = False

    # Timeout for REST calls in seconds
    request_timeout: int = 30

    @field_validator("frappe_url")
    @classmethod
    def strip_trailing_slash(cls, v: str) -> str:
        return v.rstrip("/")

    # Module activation — handled by module_registry, stored here so pydantic doesn't reject it
    enabled_modules: str = ""

    model_config = {"env_file": ".env", "env_file_encoding": "utf-8", "extra": "ignore"}


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