from langchain_openai import OpenAIEmbeddings
from app.config import settings

_embeddings = None


def get_embeddings():
    global _embeddings
    if _embeddings is None:
        _embeddings = OpenAIEmbeddings(
            model=settings.embedding_model,
            api_key=settings.effective_embedding_api_key,
            base_url=settings.effective_embedding_base_url,
        )
    return _embeddings