import os
import uuid
import atexit
import pytest
from pathlib import Path
from fastapi.testclient import TestClient


def pytest_configure(config):
    markers = {
        "unit": "单元测试：纯逻辑，mock 外部依赖",
        "integration": "集成测试：API 端点 + 真实/临时 DB",
        "e2e": "端到端测试：真实 daemon + Agent（手动触发）",
        "slow": "慢测试（>5s）",
        "broadcast": "广播认领相关",
        "mail": "邮件系统相关",
        "state_machine": "状态机转换",
        "classify": "Classify Outcome 相关",
        "review": "审查/Rebuttal 相关",
    }
    for name, desc in markers.items():
        config.addinivalue_line("markers", f"{name}: {desc}")

    # When RUN_INTEGRATION=1, remove default marker filter so integration/e2e tests run
    if os.environ.get("RUN_INTEGRATION"):
        config.known_args_namespace.markexpr = ""


@pytest.fixture
def isolated_data_root(tmp_path):
    """隔离的 data_root，测试结束自动清理"""
    data_root = tmp_path / "test_data"
    data_root.mkdir()
    return data_root


@pytest.fixture
def isolated_registry(isolated_data_root):
    """隔离的 registry.db"""
    from src.blackboard.registry import ProjectRegistry
    registry = ProjectRegistry(isolated_data_root)
    return registry


@pytest.fixture
def client_with_isolation(isolated_data_root):
    """带数据隔离的 TestClient"""
    import src.utils as utils
    original = utils.get_data_root
    utils.get_data_root = lambda: isolated_data_root

    from src.main import app
    client = TestClient(app)

    yield client

    utils.get_data_root = original


# ── E2E gate ──

def pytest_collection_modifyitems(config, items):
    if not os.environ.get("RUN_INTEGRATION"):
        skip = pytest.mark.skip(reason="needs RUN_INTEGRATION=1")
        for item in items:
            if "integration" in item.keywords or "e2e" in item.keywords:
                item.add_marker(skip)


skip_no_integration = pytest.mark.skipif(
    not os.environ.get("RUN_INTEGRATION"),
    reason="Set RUN_INTEGRATION=1 to run E2E tests against real daemon",
)


# ── atexit 兜底清理 ──

def _emergency_cleanup():
    """进程退出时的最后防线：清理所有 e2e- 前缀的测试数据"""
    try:
        import requests
        api_base = os.environ.get("API_BASE", "http://localhost:8083")
        # 清理 e2e 前缀项目
        resp = requests.get(f"{api_base}/api/projects", timeout=5)
        if resp.ok:
            for proj in resp.json():
                pid = proj.get("id", "")
                if pid.startswith("e2e-"):
                    try:
                        requests.delete(
                            f"{api_base}/api/projects/{pid}?physical=true",
                            timeout=5,
                        )
                    except Exception:
                        pass
        # 清理 e2e 前缀邮件
        try:
            requests.delete(f"{api_base}/api/mail?prefix=e2e-", timeout=5)
        except Exception:
            pass
    except Exception:
        pass


atexit.register(_emergency_cleanup)