import pytest
from unittest.mock import MagicMock, patch
import os
import sys

# Add project root to path
sys.path.append(os.getcwd())

from yuxi.knowledge.graphs.upload_graph_service import UploadGraphService

# For backward compatibility with the existing test
GraphDatabase = UploadGraphService


@pytest.mark.asyncio
async def test_txt_add_vector_entity_parsing():
    # Mock driver and session
    mock_driver = MagicMock()
    mock_session = MagicMock()
    mock_driver.session.return_value.__enter__.return_value = mock_session

    # Setup mock transaction
    mock_tx = MagicMock()

    def side_effect_execute_write(func, *args, **kwargs):
        return func(mock_tx, *args, **kwargs)

    # Mock execute_read to return empty list (no missing embeddings for this test)
    # The code calls _get_nodes_without_embedding which returns [record['name']]
    # If we return [], it means all nodes have embeddings or none found.
    # Actually, the code checks:
    # nodes_without_embedding = session.execute_read(_get_nodes_without_embedding, all_entities)
    # Let's mock it to return empty list so we skip embedding generation loop which simplifies test
    mock_session.execute_read.return_value = []

    mock_session.execute_write.side_effect = side_effect_execute_write

    # Mock embedding model
    with patch("yuxi.models.select_embedding_model") as mock_select_model:
        mock_embed_model = MagicMock()
        mock_select_model.return_value = mock_embed_model

        # Create a mock connection object with driver and status as attributes
        # (not a ConnectionManager class, just a simple mock object)
        mock_connection = MagicMock()
        mock_connection.driver = mock_driver
        mock_connection.status = "open"

        # Instantiate GraphDatabase with mocked connection
        gd = GraphDatabase(mock_connection)
        # Set embed_model_name directly (this is a settable attribute)
        gd.embed_model_name = "test_model"

        # Mock config where it's imported in upload_graph_service.py
        # The import is `from yuxi import config`, so patch at the usage location
        mock_config = MagicMock()
        mock_config.embed_model = "test_model"
        mock_embed_info = MagicMock()
        mock_embed_info.dimension = 1024
        mock_config.embed_model_names = {"test_model": mock_embed_info}

        with patch("yuxi.knowledge.graphs.upload_graph_service.config", mock_config):
            # Test data: Mixed format
            triples = [
                # Legacy format
                {"h": "A", "r": "KNOWS", "t": "B"},
                # Extended format
                {
                    "h": {"name": "C", "age": 30},
                    "r": {"type": "LIKES", "weight": 0.8},
                    "t": {"name": "D", "role": "User"},
                },
            ]

            # Run the method
            await gd.txt_add_vector_entity(triples)

            # Verify calls to mock_tx.run
            merge_calls = []
            for call in mock_tx.run.call_args_list:
                args, kwargs = call
                query = args[0] if args else kwargs.get("query", "")
                if "MERGE (h:Entity:Upload" in query:
                    # The args are passed as kwargs to run: h_name=..., etc.
                    merge_calls.append(kwargs)

            assert len(merge_calls) == 2, f"Expected 2 merge calls, got {len(merge_calls)}"

            # Call 1 (Legacy)
            call1 = merge_calls[0]
            assert call1["h_name"] == "A"
            assert call1["h_props"] == {}
            assert call1["t_name"] == "B"
            assert call1["t_props"] == {}
            assert call1["r_type"] == "KNOWS"
            assert call1["r_props"] == {}

            # Call 2 (Extended)
            call2 = merge_calls[1]
            assert call2["h_name"] == "C"
            assert call2["h_props"] == {"age": 30}
            assert call2["t_name"] == "D"
            assert call2["t_props"] == {"role": "User"}
            assert call2["r_type"] == "LIKES"
            assert call2["r_props"] == {"weight": 0.8}

            print("Verification passed!")