# SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# 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.
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# limitations under the License.

from typing import Optional

import pytest

from nemoguardrails import LLMRails, RailsConfig
from tests.utils import FakeLLM, clean_events


@pytest.fixture
def rails_config():
    return RailsConfig.parse_object(
        {
            "models": [
                {
                    "type": "main",
                    "engine": "fake",
                    "model": "fake",
                }
            ],
            "user_messages": {
                "express greeting": ["Hello!"],
            },
            "flows": [
                {
                    "elements": [
                        {"user": "express greeting"},
                        {"bot": "express greeting"},
                    ]
                },
            ],
            "bot_messages": {
                "express greeting": ["Hello! How are you?"],
            },
        }
    )


@pytest.mark.asyncio
def test_1(rails_config):
    llm = FakeLLM(
        responses=[
            "  express greeting",
        ]
    )

    llm_rails = LLMRails(config=rails_config, llm=llm)

    response = llm_rails.generate(prompt="Hello there!")

    assert response == "Hello! How are you?"
