"""显式消费范围和CLI入口的生命周期证据，不连接真实数据库。"""

from contextlib import contextmanager
from types import SimpleNamespace

import pytest

from muse.共享.错误 import 配置错误
from muse.接入.cli import 入口


@pytest.fixture
def 装配范围(生命周期记录):
    """显式消费范围:进入应用生命周期后原样返回装配,退出时先于依赖夹具收尾。"""
    from contextlib import ExitStack

    栈 = ExitStack()

    def 进入(app):
        栈.enter_context(app.生命周期())
        return app

    yield 进入
    栈.close()


@pytest.fixture
def 生命周期记录():
    events = []
    yield events
    assert events[-1] == "close"
    assert events.count("open") == events.count("close")


@pytest.mark.case_id("NC-O06-EXPLICIT-FIXTURE-CLOSE")
def test_显式范围在依赖夹具退出前关闭(装配范围, 生命周期记录):
    class App:
        @contextmanager
        def 生命周期(self):
            生命周期记录.append("open")
            try:
                yield
            finally:
                生命周期记录.append("close")

    app = App()
    assert 装配范围(app) is app
    assert 生命周期记录 == ["open"]
    # 结束后的close顺序由生命周期记录fixture最终检查，防止DROP测试库时尚有池。


@pytest.mark.case_id("NC-O06-CLI-LIFESPAN")
@pytest.mark.parametrize("failed", [False, True])
def test_CLI业务成功与异常都退出范围(monkeypatch, failed):
    events = []

    class App:
        @contextmanager
        def 生命周期(self):
            events.append("open")
            try:
                yield
            finally:
                events.append("close")

    app = App()
    monkeypatch.setattr(入口, "读取配置", lambda _: object())
    monkeypatch.setattr(入口, "构建默认运行", lambda _: app)

    def command(*args, **kwargs):
        assert events == ["open"]
        if failed:
            raise 配置错误("synthetic failure")
        return {"state": "completed"}

    monkeypatch.setattr("muse.接入.cli.任务命令.运行任务命令", command)
    assert 入口.main(["任务", "synthetic.toml", "查看", "task"]) == int(failed)
    assert events == ["open", "close"]


@pytest.mark.case_id("NC-O06-CLI-NO-IO")
@pytest.mark.parametrize(
    "command", [["--help"], ["自检", "synthetic.toml"], ["探索", "synthetic.toml", "列表"]]
)
def test_帮助自检与私人文件探索不启动数据库(monkeypatch, command):
    def forbidden(*args, **kwargs):
        pytest.fail("此入口不应启动数据库provider或读取其凭据")

    app = SimpleNamespace(生命周期=forbidden)
    monkeypatch.setattr(入口, "读取配置", lambda _: object())
    monkeypatch.setattr(入口, "构建", lambda _: app)
    monkeypatch.setattr(入口, "自检", lambda _: {"state": "assembled"})
    monkeypatch.setattr(
        "muse.接入.cli.作品命令.运行探索命令", lambda *args, **kwargs: {"items": []}
    )
    monkeypatch.setattr("muse.基础设施.数据库.连接.解析连接串", forbidden)
    if command == ["--help"]:
        with pytest.raises(SystemExit) as result:
            入口.main(command)
        assert result.value.code == 0
    else:
        assert 入口.main(command) == 0