"""Tests for InMemoryKG prompt functionality."""

from unittest.mock import Mock

import pytest

from kg_services.knowledge_graph import InMemoryKG
from kg_services.ontology import MCPPrompt, MCPTool


@pytest.fixture
def sample_tool():
    """Create a sample MCPTool for testing."""
    return MCPTool(
        tool_id="test_tool_001",
        name="Test Tool",
        description="A tool for testing purposes",
        tags=["test", "utility"],
        invocation_command_stub="test --input {data}",
    )


@pytest.fixture
def sample_prompt():
    """Create a sample MCPPrompt for testing."""
    return MCPPrompt(
        prompt_id="test_prompt_001",
        name="Test Prompt",
        description="A prompt for testing purposes",
        target_tool_id="test_tool_001",
        template_string="Please process this: {{input_data}}",
        tags=["test", "basic"],
        input_variables=["input_data"],
        use_case="Testing functionality",
        difficulty_level="beginner",
        example_inputs={"input_data": "sample data"},
    )


@pytest.fixture
def kg_with_sample_data(sample_tool, sample_prompt):
    """Create InMemoryKG with sample tool and prompt data."""
    kg = InMemoryKG()
    kg.add_tool(sample_tool)
    kg.add_prompt(sample_prompt)
    return kg


def test_add_prompt(sample_prompt):
    """Test adding a prompt to the knowledge graph."""
    kg = InMemoryKG()
    kg.add_prompt(sample_prompt)

    assert len(kg.prompts) == 1
    assert sample_prompt.prompt_id in kg.prompts
    assert kg.prompts[sample_prompt.prompt_id] == sample_prompt


def test_get_prompt_by_id(kg_with_sample_data, sample_prompt):
    """Test retrieving a prompt by its ID."""
    retrieved_prompt = kg_with_sample_data.get_prompt_by_id(sample_prompt.prompt_id)
    assert retrieved_prompt == sample_prompt

    # Test non-existent prompt
    non_existent = kg_with_sample_data.get_prompt_by_id("non_existent")
    assert non_existent is None


def test_get_all_prompts(kg_with_sample_data, sample_prompt):
    """Test getting all prompts."""
    all_prompts = kg_with_sample_data.get_all_prompts()
    assert len(all_prompts) == 1
    assert sample_prompt in all_prompts


def test_find_prompts_by_tags():
    """Test finding prompts by tags."""
    kg = InMemoryKG()

    # Create prompts with different tags
    prompt1 = MCPPrompt(
        prompt_id="p1",
        name="P1",
        description="Desc1",
        target_tool_id="t1",
        template_string="{{input}}",
        tags=["nlp", "text"],
    )
    prompt2 = MCPPrompt(
        prompt_id="p2",
        name="P2",
        description="Desc2",
        target_tool_id="t1",
        template_string="{{input}}",
        tags=["vision", "image"],
    )
    prompt3 = MCPPrompt(
        prompt_id="p3",
        name="P3",
        description="Desc3",
        target_tool_id="t1",
        template_string="{{input}}",
        tags=["nlp", "analysis"],
    )

    kg.add_prompt(prompt1)
    kg.add_prompt(prompt2)
    kg.add_prompt(prompt3)

    # Test finding by single tag
    nlp_prompts = kg.find_prompts_by_tags(["nlp"])
    assert len(nlp_prompts) == 2
    assert prompt1 in nlp_prompts
    assert prompt3 in nlp_prompts

    # Test finding by multiple tags
    multi_tag_prompts = kg.find_prompts_by_tags(["vision", "analysis"])
    assert len(multi_tag_prompts) == 2
    assert prompt2 in multi_tag_prompts
    assert prompt3 in multi_tag_prompts


def test_find_prompts_by_tool_id():
    """Test finding prompts by target tool ID."""
    kg = InMemoryKG()

    # Create prompts for different tools
    prompt1 = MCPPrompt(
        prompt_id="p1",
        name="P1",
        description="Desc1",
        target_tool_id="tool_a",
        template_string="{{input}}",
    )
    prompt2 = MCPPrompt(
        prompt_id="p2",
        name="P2",
        description="Desc2",
        target_tool_id="tool_b",
        template_string="{{input}}",
    )
    prompt3 = MCPPrompt(
        prompt_id="p3",
        name="P3",
        description="Desc3",
        target_tool_id="tool_a",
        template_string="{{input}}",
    )

    kg.add_prompt(prompt1)
    kg.add_prompt(prompt2)
    kg.add_prompt(prompt3)

    # Test finding prompts for tool_a
    tool_a_prompts = kg.find_prompts_by_tool_id("tool_a")
    assert len(tool_a_prompts) == 2
    assert prompt1 in tool_a_prompts
    assert prompt3 in tool_a_prompts

    # Test finding prompts for tool_b
    tool_b_prompts = kg.find_prompts_by_tool_id("tool_b")
    assert len(tool_b_prompts) == 1
    assert prompt2 in tool_b_prompts

    # Test non-existent tool
    no_prompts = kg.find_prompts_by_tool_id("non_existent")
    assert len(no_prompts) == 0


def test_find_prompts_by_difficulty():
    """Test finding prompts by difficulty level."""
    kg = InMemoryKG()

    # Create prompts with different difficulty levels
    prompt1 = MCPPrompt(
        prompt_id="p1",
        name="P1",
        description="Desc1",
        target_tool_id="t1",
        template_string="{{input}}",
        difficulty_level="beginner",
    )
    prompt2 = MCPPrompt(
        prompt_id="p2",
        name="P2",
        description="Desc2",
        target_tool_id="t1",
        template_string="{{input}}",
        difficulty_level="advanced",
    )
    prompt3 = MCPPrompt(
        prompt_id="p3",
        name="P3",
        description="Desc3",
        target_tool_id="t1",
        template_string="{{input}}",
        difficulty_level="beginner",
    )

    kg.add_prompt(prompt1)
    kg.add_prompt(prompt2)
    kg.add_prompt(prompt3)

    # Test finding beginner prompts
    beginner_prompts = kg.find_prompts_by_difficulty("beginner")
    assert len(beginner_prompts) == 2
    assert prompt1 in beginner_prompts
    assert prompt3 in beginner_prompts

    # Test finding advanced prompts
    advanced_prompts = kg.find_prompts_by_difficulty("advanced")
    assert len(advanced_prompts) == 1
    assert prompt2 in advanced_prompts


def test_get_all_prompt_tags():
    """Test getting all unique prompt tags."""
    kg = InMemoryKG()

    # Create prompts with overlapping tags
    prompt1 = MCPPrompt(
        prompt_id="p1",
        name="P1",
        description="Desc1",
        target_tool_id="t1",
        template_string="{{input}}",
        tags=["nlp", "text", "basic"],
    )
    prompt2 = MCPPrompt(
        prompt_id="p2",
        name="P2",
        description="Desc2",
        target_tool_id="t1",
        template_string="{{input}}",
        tags=["vision", "image", "basic"],
    )

    kg.add_prompt(prompt1)
    kg.add_prompt(prompt2)

    all_tags = kg.get_all_prompt_tags()
    expected_tags = {"nlp", "text", "basic", "vision", "image"}
    assert all_tags == expected_tags


def test_find_similar_prompts():
    """Test finding similar prompts using vector similarity."""
    kg = InMemoryKG()

    # Create mock embeddings for testing
    kg.prompt_embeddings = [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.5, 0.5, 0.0]]
    kg.prompt_ids_for_vectors = ["p1", "p2", "p3"]

    # Test query that should be most similar to first prompt
    query_embedding = [0.9, 0.1, 0.0]
    similar_prompts = kg.find_similar_prompts(query_embedding, top_k=2)

    assert len(similar_prompts) == 2
    assert similar_prompts[0] == "p1"  # Most similar


def test_find_similar_prompts_for_tool():
    """Test finding similar prompts for a specific tool."""
    kg = InMemoryKG()

    # Add prompts for different tools
    prompt1 = MCPPrompt(
        prompt_id="p1",
        name="P1",
        description="Desc1",
        target_tool_id="tool_a",
        template_string="{{input}}",
    )
    prompt2 = MCPPrompt(
        prompt_id="p2",
        name="P2",
        description="Desc2",
        target_tool_id="tool_b",
        template_string="{{input}}",
    )
    prompt3 = MCPPrompt(
        prompt_id="p3",
        name="P3",
        description="Desc3",
        target_tool_id="tool_a",
        template_string="{{input}}",
    )

    kg.add_prompt(prompt1)
    kg.add_prompt(prompt2)
    kg.add_prompt(prompt3)

    # Mock embeddings
    kg.prompt_embeddings = [[1.0, 0.0], [0.0, 1.0], [0.8, 0.2]]
    kg.prompt_ids_for_vectors = ["p1", "p2", "p3"]

    # Find prompts for tool_a
    query_embedding = [0.9, 0.1]
    tool_a_prompts = kg.find_similar_prompts_for_tool(
        query_embedding, "tool_a", top_k=2
    )

    assert len(tool_a_prompts) == 2
    assert "p1" in tool_a_prompts
    assert "p3" in tool_a_prompts
    assert "p2" not in tool_a_prompts  # Should not include tool_b prompts


def test_load_prompts_from_json(tmp_path):
    """Test loading prompts from JSON file."""
    # Create temporary JSON file
    prompt_data = [
        {
            "prompt_id": "test_prompt_001",
            "name": "Test Prompt",
            "description": "A test prompt",
            "target_tool_id": "test_tool",
            "template_string": "Process: {{input}}",
            "tags": ["test"],
            "input_variables": ["input"],
            "use_case": "Testing",
            "difficulty_level": "beginner",
            "example_inputs": {"input": "test data"},
        }
    ]

    # Create test JSON file
    json_file = tmp_path / "test_prompts.json"
    import json

    with json_file.open("w") as f:
        json.dump(prompt_data, f)

    # Test loading
    kg = InMemoryKG()
    success = kg.load_prompts_from_json(json_file)

    assert success is True
    assert len(kg.prompts) == 1
    assert "test_prompt_001" in kg.prompts

    loaded_prompt = kg.get_prompt_by_id("test_prompt_001")
    assert loaded_prompt.name == "Test Prompt"
    assert loaded_prompt.target_tool_id == "test_tool"


def test_load_prompts_from_json_invalid_file():
    """Test loading prompts from non-existent file."""
    kg = InMemoryKG()
    success = kg.load_prompts_from_json("non_existent.json")
    assert success is False
    assert len(kg.prompts) == 0


def test_build_vector_index_with_prompts():
    """Test building vector index including prompts."""
    kg = InMemoryKG()

    # Add sample data
    tool = MCPTool(
        tool_id="t1",
        name="Tool 1",
        description="Test tool",
        tags=["test"],
        invocation_command_stub="test",
    )
    prompt = MCPPrompt(
        prompt_id="p1",
        name="Prompt 1",
        description="Test prompt",
        target_tool_id="t1",
        template_string="{{input}}",
    )

    kg.add_tool(tool)
    kg.add_prompt(prompt)

    # Mock embedder
    mock_embedder = Mock()
    mock_embedder.get_embedding.return_value = [0.1, 0.2, 0.3]

    # Build index
    success = kg.build_vector_index(mock_embedder)

    assert success is True
    assert len(kg.tool_embeddings) == 1
    assert len(kg.prompt_embeddings) == 1
    assert len(kg.tool_ids_for_vectors) == 1
    assert len(kg.prompt_ids_for_vectors) == 1

    # Verify embedder was called for both tool and prompt
    assert mock_embedder.get_embedding.call_count == 2