from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    # MQTT
    mqtt_broker: str = "localhost"
    mqtt_port: int = 1883
    mqtt_user: Optional[str] = None
    mqtt_pass: Optional[str] = None

    # GCP
    gcp_credentials_path: Optional[str] = None  # None → uses ADC
    gcs_bucket: Optional[str] = None             # None → audio upload disabled
    firestore_database: str = "(default)"

    # Node health
    node_offline_threshold: int = 90  # seconds without checkin before marking offline

    # Internal service key — allows server-side services (discord bot) to call C2 without Firebase
    service_key: Optional[str] = None

    class Config:
        env_file = ".env"


settings = Settings()