from unittest.mock import patch

import pytest

from llm_chat.chat import Chat
from llm_chat.settings import Model, OpenAISettings


def test_send_message() -> None:
    with patch("llm_chat.chat.Chat._make_request") as mock_make_request:
        mock_make_request.return_value = {
            "choices": [{"message": {"content": "Hello!"}}],
            "usage": {"completion_tokens": 1, "prompt_tokens": 1},
        }
        conversation = Chat()
        response = conversation.send_message("Hello")
        assert isinstance(response, str)
        assert response == "Hello!"


@pytest.mark.parametrize("model,cost", [(Model.GPT3, 0.000043), (Model.GPT4, 0.00105)])
def test_calculate_cost(model: Model, cost: float) -> None:
    with patch("llm_chat.chat.Chat._make_request") as mock_make_request:
        mock_make_request.return_value = {
            "choices": [{"message": {"content": "Hello!"}}],
            "usage": {"completion_tokens": 10, "prompt_tokens": 15},
        }
        settings = OpenAISettings(model=model)
        conversation = Chat(settings=settings)
        _ = conversation.send_message("Hello")
        assert conversation.cost == cost