backend/config/settings.py

from pydantic_settings import BaseSettings
from typing import Optional

class Settings(BaseSettings):
    # API Settings
    API_HOST: str = "0.0.0.0"
    API_PORT: int = 8000
    
    # Model Settings
    MODEL_NAME: str = "all-MiniLM-L6-v2"
    MODEL_PATH: str = "../models/product_embeddings.pkl"
    
    # HuggingFace Settings
    HUGGINGFACE_API_TOKEN: str
    HUGGINGFACE_USERNAME: Optional[str] = None
    
    # BigQuery Settings
    BIGQUERY_PROJECT_ID: str
    BIGQUERY_DATASET: str
    BIGQUERY_TABLE: str
    GOOGLE_APPLICATION_CREDENTIALS: str
    
    class Config:
        env_file = ".env"

settings = Settings()