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"""
Unit tests for MCP system tools (get_superset_instance_info)
"""
import logging
import sys
from unittest.mock import patch

import pytest

sys.path.append('.')
import fastmcp
from superset.mcp_service.mcp_app import mcp

logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)

@pytest.fixture
def mcp_server():
    return mcp

class TestSystemTools:
    """Test system-related MCP tools"""

    @patch('superset.daos.dashboard.DashboardDAO.count', return_value=10)
    @patch('superset.daos.chart.ChartDAO.count', return_value=10)
    @patch('superset.daos.dataset.DatasetDAO.count', return_value=10)
    @patch('superset.daos.database.DatabaseDAO.count', return_value=10)
    @patch('superset.daos.user.UserDAO.count', return_value=10)
    @patch('superset.daos.tag.TagDAO.count', return_value=10)
    @pytest.mark.asyncio
    async def test_get_superset_instance_info_success(self, mock_tag, mock_user, mock_db, mock_dataset, mock_chart, mock_dashboard, mcp_server):
        async with fastmcp.Client(mcp_server) as client:
            result = await client.call_tool("get_superset_instance_info", {})
            summary = result.data.instance_summary
            assert summary.total_dashboards == 10
            assert summary.total_charts == 10
            assert summary.total_datasets == 10
            assert summary.total_databases == 10
            assert summary.total_users == 10
            assert summary.total_tags == 10

    @patch('superset.daos.dashboard.DashboardDAO.count', side_effect=Exception("Database connection failed"))
    @pytest.mark.asyncio
    async def test_get_superset_instance_info_failure(self, mock_dashboard, mcp_server):
        async with fastmcp.Client(mcp_server) as client:
            with pytest.raises(Exception) as excinfo:
                await client.call_tool("get_superset_instance_info", {})
            assert "Database connection failed" in str(excinfo.value)