from typing import Any, Dict, List

from fastrag.retrievers import QuantizedBiEncoderRetriever


class RetrieverHandler:
    def __init__(self, path=""):
        model_id = "Intel/bge-small-en-v1.5-rag-int8-static"
        self.retriever = QuantizedBiEncoderRetriever(embedding_model=model_id)

    def __call__(self, data: Dict[str, Any]) -> List[Dict[str, Any]]:
        queries = data.get("queries")

        assert isinstance(queries, list), "Expected a list of queries"
        assert all(isinstance(query, str) for query in queries), "Expected a list of strings"

        return self.retriever.embed_queries(queries=queries)