guanlan-src/scripts/guanlan_start_hidden.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""**无窗口**启动观澜 (2026-09-16 用户令: "启动观澜系统, 弹出的命令窗口, 改为不弹出方式")。

为什么单开一个脚本: `guanlan.py serve` 是**前台阻塞**命令 (它在控制台里打启动横幅、等 healthz),
双击 start.bat 就会一直挂着一个黑窗; 而各组件服务其实早已是 `DETACHED_PROCESS` 起的 (不弹窗)。
所以只需要一个"把 serve 藏到后台、等就绪、打开浏览器、自己退出"的入口。

做法:
  1. 网关已在 → 只打开浏览器 (重复点不重复起, 幂等);
  2. 否则用 `CREATE_NO_WINDOW | DETACHED_PROCESS` 起 `guanlan.py serve`, stdout/stderr 落
     `logs/serve.log` (有窗口才有地方看日志, 藏起来就必须落文件);
  3. 轮询 `/healthz` 直到就绪 (最多 `--wait` 秒), 就绪后按 `--open/--no-open` 决定是否开浏览器;
  4. 全过程写 `logs/start_hidden.log` (含退出码与失败原因) —— **不静默**:
     失败时不但写日志, 还会弹一个消息框 (无窗口模式下唯一能让人看见的方式)。

由 `start_hidden.vbs` 以 `pythonw.exe` 调用 (窗口样式 0 = 完全不显示)。

用法:
    .venv\\Scripts\\pythonw.exe scripts\\guanlan_start_hidden.py          # 隐藏启动 + 开浏览器
    .venv\\Scripts\\python.exe  scripts\\guanlan_start_hidden.py --no-open  # 隐藏启动, 不开浏览器
    .venv\\Scripts\\python.exe  scripts\\guanlan_start_hidden.py --wait 180 # 加长等待
"""
from __future__ import annotations

import argparse
import datetime as dt
import json
import os
import pathlib
import socket
import subprocess
import sys
import time
import urllib.request

ROOT = pathlib.Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT))
from src import paths as P          # noqa: E402
from src.console import soft        # noqa: E402

soft()
LOG = P.LOGS / 'start_hidden.log'


def log(msg: str) -> None:
    P.LOGS.mkdir(parents=True, exist_ok=True)
    line = f'{dt.datetime.now():%Y-%m-%d %H:%M:%S} {msg}'
    with open(LOG, 'a', encoding='utf-8') as f:
        f.write(line + '\n')


def port_up(host: str, port: int, t: float = 0.4) -> bool:
    try:
        with socket.create_connection((host, port), timeout=t):
            return True
    except OSError:
        return False


def healthz(url: str, timeout=6.0) -> bool:
    try:
        with urllib.request.urlopen(url, timeout=timeout) as r:
            return r.status == 200
    except Exception:
        return False


def notify(title: str, text: str) -> None:
    """无窗口模式下唯一能让人看见失败的通道 (Windows 消息框; 非 Windows 走 stderr)。"""
    if os.name != 'nt':
        print(f'{title}: {text}', file=sys.stderr)
        return
    try:
        import ctypes
        ctypes.windll.user32.MessageBoxW(0, text, title, 0x30)      # MB_ICONWARNING
    except Exception:
        pass


def main() -> int:
    ap = argparse.ArgumentParser()
    ap.add_argument('--host', default='127.0.0.1')
    ap.add_argument('--gateway', type=int, default=None, help='网关端口 (默认读 configs/serve.json)')
    ap.add_argument('--wait', type=int, default=120, help='等 healthz 就绪的最长秒数')
    ap.add_argument('--no-open', action='store_true', help='就绪后不开浏览器')
    ap.add_argument('--quiet-fail', action='store_true', help='失败时不弹消息框 (只写日志)')
    a = ap.parse_args()

    gw = a.gateway
    if gw is None:
        try:
            cfg = json.loads(P.SERVE_JSON.read_text(encoding='utf-8-sig'))
            gw = int(cfg.get('gateway') or 28084)
        except Exception:
            gw = 28084
    url = f'http://{a.host}:{gw}/'
    log(f'--- 无窗口启动请求 (端口 {gw}, wait={a.wait}s) ---')

    if port_up(a.host, gw):
        log(f'网关 {gw} 已在运行 → 只打开页面')
        if not a.no_open:
            import webbrowser
            webbrowser.open(url)
        return 0

    py = P.venv_python() or pathlib.Path(sys.executable)
    cmd = [str(py), 'guanlan.py', 'serve']
    flags = 0
    if os.name == 'nt':
        flags = (getattr(subprocess, 'CREATE_NO_WINDOW', 0x08000000)
                 | getattr(subprocess, 'CREATE_NEW_PROCESS_GROUP', 0)
                 | getattr(subprocess, 'DETACHED_PROCESS', 0))
    P.LOGS.mkdir(parents=True, exist_ok=True)
    lf = open(P.LOGS / 'serve.log', 'ab')
    kw = dict(cwd=str(ROOT), stdout=lf, stderr=subprocess.STDOUT, stdin=subprocess.DEVNULL)
    if os.name == 'nt':
        kw['creationflags'] = flags
    else:
        kw['start_new_session'] = True
    try:
        pid = subprocess.Popen(cmd, **kw).pid
    except Exception as e:
        log(f'✘ 起 serve 失败: {type(e).__name__}: {e}')
        if not a.quiet_fail:
            notify('观澜启动失败', f'无法启动服务: {e}\n详见 logs\\start_hidden.log')
        return 3
    log(f'起 serve pid={pid} (无窗口; 日志 logs/serve.log)')

    t0 = time.time()
    while time.time() - t0 < a.wait:
        if healthz(f'{url}healthz'):
            log(f'✔ 就绪 ({time.time() - t0:.0f}s) → {url}')
            if not a.no_open:
                try:
                    import webbrowser
                    webbrowser.open(url)
                except Exception as e:
                    log(f'⚠ 打开浏览器失败: {e}')
            return 0
        time.sleep(1.5)
    log(f'✘ {a.wait}s 内 healthz 未就绪 (serve pid={pid} 可能已退出)')
    if not a.quiet_fail:
        notify('观澜启动未就绪', f'{a.wait} 秒内网关未就绪, 请查看:\n'
                                  f'logs\\serve.log\nlogs\\start_hidden.log')
    return 2


if __name__ == '__main__':
    sys.exit(main())