from unittest.mock import MagicMock, patch

import pytest
from langchain.schema import HumanMessage, SystemMessage

from embedchain.config import BaseLlmConfig
from embedchain.llm.azure_openai import AzureOpenAILlm


@pytest.fixture
def azure_openai_llm():
    config = BaseLlmConfig(
        deployment_name="azure_deployment",
        temperature=0.7,
        model="gpt-3.5-turbo",
        max_tokens=50,
        system_prompt="System Prompt",
    )
    return AzureOpenAILlm(config)


def test_get_llm_model_answer(azure_openai_llm):
    with patch.object(AzureOpenAILlm, "_get_answer", return_value="Test Response") as mock_method:
        prompt = "Test Prompt"
        response = azure_openai_llm.get_llm_model_answer(prompt)
        assert response == "Test Response"
        mock_method.assert_called_once_with(prompt=prompt, config=azure_openai_llm.config)


def test_get_answer(azure_openai_llm):
    with patch("langchain.chat_models.AzureChatOpenAI") as mock_chat:
        mock_chat_instance = mock_chat.return_value
        mock_chat_instance.return_value = MagicMock(content="Test Response")

        prompt = "Test Prompt"
        response = azure_openai_llm._get_answer(prompt, azure_openai_llm.config)

        assert response == "Test Response"
        mock_chat.assert_called_once_with(
            deployment_name=azure_openai_llm.config.deployment_name,
            openai_api_version="2023-05-15",
            model_name=azure_openai_llm.config.model or "gpt-3.5-turbo",
            temperature=azure_openai_llm.config.temperature,
            max_tokens=azure_openai_llm.config.max_tokens,
            streaming=azure_openai_llm.config.stream,
        )
        mock_chat_instance.assert_called_once_with(
            azure_openai_llm._get_messages(prompt, system_prompt=azure_openai_llm.config.system_prompt)
        )


def test_get_messages(azure_openai_llm):
    prompt = "Test Prompt"
    system_prompt = "Test System Prompt"
    messages = azure_openai_llm._get_messages(prompt, system_prompt)
    assert messages == [
        SystemMessage(content="Test System Prompt", additional_kwargs={}),
        HumanMessage(content="Test Prompt", additional_kwargs={}, example=False),
    ]


def test_get_answer_top_p_is_provided(azure_openai_llm, caplog):
    with patch("langchain.chat_models.AzureChatOpenAI") as mock_chat:
        mock_chat_instance = mock_chat.return_value
        mock_chat_instance.return_value = MagicMock(content="Test Response")

        prompt = "Test Prompt"
        config = azure_openai_llm.config
        config.top_p = 0.5

        response = azure_openai_llm._get_answer(prompt, config)

        assert response == "Test Response"
        mock_chat.assert_called_once_with(
            deployment_name=config.deployment_name,
            openai_api_version="2023-05-15",
            model_name=config.model or "gpt-3.5-turbo",
            temperature=config.temperature,
            max_tokens=config.max_tokens,
            streaming=config.stream,
        )
        mock_chat_instance.assert_called_once_with(
            azure_openai_llm._get_messages(prompt, system_prompt=config.system_prompt)
        )

        assert "Config option `top_p` is not supported by this model." in caplog.text


def test_when_no_deployment_name_provided():
    config = BaseLlmConfig(temperature=0.7, model="gpt-3.5-turbo", max_tokens=50, system_prompt="System Prompt")
    with pytest.raises(ValueError):
        llm = AzureOpenAILlm(config)
        llm.get_llm_model_answer("Test Prompt")
