"""Modal remote class lookups for FinSight AI inference."""

import modal

from config import settings

_embedder_cls = None
_llm_cls = None
_ocr_cls = None


def get_embedder():
    global _embedder_cls
    if _embedder_cls is None:
        _embedder_cls = modal.Cls.from_name(settings.MODAL_APP_NAME, "Embedder")
    return _embedder_cls()


def get_llm():
    global _llm_cls
    if _llm_cls is None:
        _llm_cls = modal.Cls.from_name(settings.MODAL_APP_NAME, "LLM")
    return _llm_cls()


def get_ocr():
    global _ocr_cls
    if _ocr_cls is None:
        _ocr_cls = modal.Cls.from_name(settings.MODAL_APP_NAME, "OCR")
    return _ocr_cls()