from typing import Dict, List, Any
from transformers import AutoTokenizer, AutoModel


class EndpointHandler():
    def __init__(self):
        self.tokenizer = AutoTokenizer.from_pretrained("THUDM/chatglm2-6b-int4", trust_remote_code=True)
        self.model = AutoModel.from_pretrained("THUDM/chatglm2-6b-int4", trust_remote_code=True).half().cuda()
        self.model = self.model.eval()


def __call__(self, data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
   data args:
        inputs (:obj: `str`)
  Return:
        A :obj:`list` | `dict`: will be serialized and returned
    """
    # get inputs
    inputs = data.pop("inputs", data)

    response, history = self.model.chat(self.tokenizer, inputs, history=[])

    return [{'response': response, 'history': history}]