import pytest
from unittest.mock import Mock, patch
from swarms.agents.agents import AgentNodeInitializer, AgentNode, agent  # replace with actual import

# For initializing AgentNodeInitializer in multiple tests
@pytest.fixture
def mock_agent_node_initializer():
    with patch('swarms.agents.agents.ChatOpenAI') as mock_llm, \
        patch('swarms.agents.agents.AutoGPT') as mock_agent:

        initializer = AgentNodeInitializer(model_type='openai', model_id='test', openai_api_key='test_key', temperature=0.5)
        initializer.llm = mock_llm
        initializer.tools = [Mock(spec=BaseTool)]
        initializer.vectorstore = Mock()
        initializer.agent = mock_agent

    return initializer


# Test initialize_llm method of AgentNodeInitializer class
@pytest.mark.parametrize("model_type", ['openai', 'huggingface', 'invalid'])
def test_agent_node_initializer_initialize_llm(model_type, mock_agent_node_initializer):
    with patch('swarms.agents.agents.ChatOpenAI') as mock_openai, \
        patch('swarms.agents.agents.HuggingFaceLLM') as mock_huggingface:

        if model_type == 'invalid':
            with pytest.raises(ValueError):
                mock_agent_node_initializer.initialize_llm(model_type, 'model_id', 'openai_api_key', 0.5)
        else:
            mock_agent_node_initializer.initialize_llm(model_type, 'model_id', 'openai_api_key', 0.5)
            if model_type == 'openai':
                mock_openai.assert_called_once()
            elif model_type == 'huggingface':
                mock_huggingface.assert_called_once()


# Test add_tool method of AgentNodeInitializer class
def test_agent_node_initializer_add_tool(mock_agent_node_initializer):
    with patch('swarms.agents.agents.BaseTool') as mock_base_tool:
        mock_agent_node_initializer.add_tool(mock_base_tool)
        assert mock_base_tool in mock_agent_node_initializer.tools


# Test run method of AgentNodeInitializer class
@pytest.mark.parametrize("prompt", ['valid prompt', ''])
def test_agent_node_initializer_run(prompt, mock_agent_node_initializer):
    if prompt == '':
        with pytest.raises(ValueError):
            mock_agent_node_initializer.run(prompt)
    else:
        assert mock_agent_node_initializer.run(prompt) == "Task completed by AgentNode"

# For initializing AgentNode in multiple tests
@pytest.fixture
def mock_agent_node():
    with patch('swarms.agents.agents.ChatOpenAI') as mock_llm, \
        patch('swarms.agents.agents.AgentNodeInitializer') as mock_agent_node_initializer:

        mock_agent_node = AgentNode('test_key')
        mock_agent_node.llm_class = mock_llm
        mock_agent_node.vectorstore = Mock()
        mock_agent_node_initializer.llm = mock_llm

    return mock_agent_node

# Test initialize_llm method of AgentNode class
@pytest.mark.parametrize("llm_class", ['openai', 'huggingface'])
def test_agent_node_initialize_llm(llm_class, mock_agent_node):
    with patch('swarms.agents.agents.ChatOpenAI') as mock_openai, \
        patch('swarms.agents.agents.HuggingFaceLLM') as mock_huggingface:

        mock_agent_node.initialize_llm(llm_class)
        if llm_class == 'openai':
            mock_openai.assert_called_once()
        elif llm_class == 'huggingface':
            mock_huggingface.assert_called_once()

# Test initialize_tools method of AgentNode class
def test_agent_node_initialize_tools(mock_agent_node):
    with patch('swarms.agents.agents.DuckDuckGoSearchRun') as mock_ddg, \
        patch('swarms.agents.agents.WriteFileTool') as mock_write_file, \
        patch('swarms.agents.agents.ReadFileTool') as mock_read_file, \
        patch('swarms.agents.agents.process_csv') as mock_process_csv, \
        patch('swarms.agents.agents.WebpageQATool') as mock_webpage_qa:

        mock_agent_node.initialize_tools('openai')
        assert mock_ddg.called
        assert mock_write_file.called
        assert mock_read_file.called
        assert mock_process_csv.called
        assert mock_webpage_qa.called


# Test create_agent method of AgentNode class
def test_agent_node_create_agent(mock_agent_node):
    with patch.object(mock_agent_node, 'initialize_llm'), \
        patch.object(mock_agent_node, 'initialize_tools'), \
        patch.object(mock_agent_node, 'initialize_vectorstore'), \
        patch('swarms.agents.agents.AgentNodeInitializer') as mock_agent_node_initializer:

        mock_agent_node.create_agent()
        mock_agent_node_initializer.assert_called_once()
        mock_agent_node_initializer.return_value.create_agent.assert_called_once()


# Test agent function
@pytest.mark.parametrize("openai_api_key,objective", [('valid_key', 'valid_objective'), ('', 'valid_objective'), ('valid_key', '')])
def test_agent(openai_api_key, objective):
    if openai_api_key == '' or objective == '':
        with pytest.raises(ValueError):
            agent(openai_api_key, objective)
    else:
        with patch('swarms.agents.agents.AgentNodeInitializer') as mock_agent_node_initializer:
            mock_agent_node = mock_agent_node_initializer.return_value.create_agent.return_value
            mock_agent_node.run.return_value = 'Agent output'
            result = agent(openai_api_key, objective)
            assert result == 'Agent output'