"""Shared pytest configuration — runs before any test module is imported.

Patches MCPToolAdapter at the sys.modules level so that importing
backend.agent.coding_agent never tries to start real MCP subprocess servers.
"""

import sys
from unittest.mock import AsyncMock, MagicMock

# Build a fake adapter instance whose async methods return immediately.
_mock_adapter = MagicMock()
_mock_adapter.initialize_all_servers = AsyncMock(return_value=None)
_mock_adapter.get_all_tools = MagicMock(return_value=[])
_mock_adapter.call_tool = AsyncMock(return_value=MagicMock(isError=False, content=[]))

# Wrap as a class mock: calling MCPToolAdapter() returns _mock_adapter.
_mock_adapter_cls = MagicMock(return_value=_mock_adapter)

# Inject before any test imports coding_agent so the module-level
# asyncio.run(adapter.initialize_all_servers()) uses the mock.
sys.modules.setdefault(
    "backend.agent.mcp_server_adapter",
    MagicMock(MCPToolAdapter=_mock_adapter_cls),
)