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

    # OpenAI (Whisper STT)
    openai_api_key: Optional[str] = None

    # Gemini (intelligence extraction, embeddings, incident summaries)
    gemini_api_key: Optional[str] = None
    summary_interval_minutes: int = 2          # how often the summary loop runs
    correlation_window_hours: int = 2          # slow/location path: max hours since last call
    embedding_similarity_threshold: float = 0.93  # slow-path cosine threshold (tiebreaker only)
    location_proximity_km: float = 0.5        # radius for location-proximity matching
    incident_auto_resolve_minutes: int = 90   # auto-resolve after N minutes with no new calls

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

    # CORS — comma-separated list of allowed origins, or "*" for all
    cors_origins: list[str] = ["*"]

    class Config:
        env_file = ".env"


settings = Settings()