import asyncio
import time
import sys
from pathlib import Path

# Ensure server root is on sys.path so `app` package can be imported when running tests directly
ROOT = Path(__file__).resolve().parents[1]
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))

from app.core.workflow_executor import WorkflowExecutor
from app.core.node_registry import register_node, NodeRegistry
from app.core.node_base import TraceNode, NodeType, CachePolicy


# Simple test node
@register_node
class AddNode(TraceNode):
    CATEGORY = "Math/Basic"
    DISPLAY_NAME = "Add"
    NODE_TYPE = NodeType.NORMAL
    CACHE_POLICY = CachePolicy.MEMORY

    InputSpec = {
        "a": ("Number", {"required": True}),
        "b": ("Number", {"required": True})
    }
    OutputSpec = {
        "result": ("Number", {})
    }

    def process(self, inputs, context=None):
        a = inputs.get("a", 0)
        b = inputs.get("b", 0)
        return {"result": a + b}


async def run_executor_test():
    executor = WorkflowExecutor(user_id="test_user")
    nodes = [
        {"id": "n1", "type": "AddNode", "class_name": "AddNode", "params": {}},
    ]
    edges = []

    success, report = await executor.execute(nodes=nodes, edges=edges, global_context={})
    print("success:", success)
    print("report:", report)

    assert success is True
    assert "nodes" in report
    assert "n1" in report["nodes"]
    n1 = report["nodes"]["n1"]
    assert n1["status"] == "success"
    assert "outputs" in n1
    assert "result" in n1["outputs"] or isinstance(n1["outputs"], dict)


def test_executor():
    asyncio.run(run_executor_test())


if __name__ == "__main__":
    asyncio.run(run_executor_test())