app/config.py

from pydantic_settings import BaseSettings
from typing import List
import os


class Settings(BaseSettings):
    # Google Gemini
    GOOGLE_API_KEY: str = ""

    # Pinecone
    PINECONE_API_KEY: str = ""
    PINECONE_INDEX_NAME: str = "health-tech-kb"

    # App settings
    APP_ENV: str = "development"
    CORS_ORIGINS: str = "http://localhost:3000"
    UPLOAD_DIR: str = "./uploads"
    CHUNK_SIZE: int = 1000
    CHUNK_OVERLAP: int = 200
    EMBEDDING_MODEL: str = "sentence-transformers/all-MiniLM-L6-v2"
    LLM_MODEL: str = "gemini-2.5-flash"

    @property
    def cors_origins_list(self) -> List[str]:
        return [origin.strip() for origin in self.CORS_ORIGINS.split(",")]

    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"


settings = Settings()

# Ensure upload directory exists
os.makedirs(settings.UPLOAD_DIR, exist_ok=True)