# Copyright 2021 Zilliz. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import openai
from tenacity import retry, stop_after_attempt, wait_random_exponential
from towhee.operator.base import PyOperator


class OpenaiQA(PyOperator):
    def __init__(self, model_name='text-davinci-003', api_key=None, max_token=50):
        self._model = model_name
        self._api_key = api_key
        self._max_token = max_token

    # @retry(wait=wait_random_exponential(min=1, max=20), stop=stop_after_attempt(6))
    def _call(self, prompt):
        response = openai.Completion.create(
            api_key=self._api_key,
            model=self._model,
            prompt=prompt,
            max_tokens=self._max_token,
            n=1,
            stop=None,
            temperature=0.3,
        )
        answer = response.choices[0].text.strip()
        return answer

    def __call__(self, prompt):
        return self._call(prompt)

    @staticmethod
    def supported_model_names():
        model_list = [
            'text-davinci-003',
        ]
        model_list.sort()
        return model_list