# -*- coding: utf-8 -*-
"""模拟浏览器：管理页的"删除"按钮为什么没反应。

用户反馈："中转站那边输入密码以后，这个删除键没反应，是个幽灵按键"

浏览器实际做的是：
    1. POST /admin/login  拿 lr_admin Cookie
    2. GET  /              看管理页
    3. 点删除 -> fetch('/v1/admin/delete', {method POST, body {deviceId}})
       浏览器会自动带上 Cookie

所以这个测试完全照这个路径走一遍，看断在哪。
"""
from __future__ import annotations

import http.cookiejar
import json
import os
import re
import shutil
import subprocess
import sys
import tempfile
import time
import urllib.error
import urllib.parse
import urllib.request
from pathlib import Path

_UA = {"User-Agent": "LanRemote/1.4.0"}

ROOT = Path(__file__).resolve().parent.parent
PORT = 8097
BASE = f"http://127.0.0.1:{PORT}"

passed = 0
failed = 0


def check(name, ok, detail=""):
    global passed, failed
    if ok:
        passed += 1
        print("  [PASS] " + name)
    else:
        failed += 1
        print("  [FAIL] " + name + "  " + str(detail))


def main() -> int:
    work = Path(tempfile.mkdtemp(prefix="admin_button_"))
    relay = None
    try:
        data = work / "data"
        data.mkdir(parents=True, exist_ok=True)
        env = dict(os.environ)
        env.update({
            "RELAY_PORT": str(PORT), "RELAY_BIND": "127.0.0.1",
            "RELAY_DATA": str(data), "RELAY_POLL": "6",
            "PYTHONIOENCODING": "utf-8", "PYTHONUNBUFFERED": "1",
        })
        relay = subprocess.Popen(
            [sys.executable, "-u", str(ROOT / "relay" / "relay.py")], env=env,
            stdout=open(work / "relay.log", "wb"), stderr=subprocess.STDOUT)
        up = False
        for _ in range(40):
            time.sleep(0.5)
            try:
                req = urllib.request.Request(BASE + "/v1/health", headers=_UA)
                with urllib.request.urlopen(req, timeout=2) as resp:
                    if resp.status == 200:
                        up = True
                        break
            except Exception:                             # noqa: BLE001
                continue
        check("本地中转起来了", up)
        if not up:
            print((work / "relay.log").read_text(encoding="utf-8",
                                                 errors="replace")[-500:])
            return 1

        # 造两台设备
        for i in (1, 2):
            body = json.dumps({"deviceId": f"pc-{i}", "code": f"11111{i}",
                               "name": f"电脑{i}", "version": "1.4.0"}
                              ).encode()
            req = urllib.request.Request(
                BASE + "/v1/agent/register", data=body, method="POST",
                headers={**_UA, "Content-Type": "application/json"})
            urllib.request.urlopen(req, timeout=10).read()

        # ---------------- 模拟浏览器 ----------------
        jar = http.cookiejar.CookieJar()
        opener = urllib.request.build_opener(
            urllib.request.HTTPCookieProcessor(jar))

        print()
        print("一、登录拿 Cookie")
        form = urllib.parse.urlencode({"username": "xmz7891", "password": "@REVAedu120830"}).encode()
        req = urllib.request.Request(BASE + "/admin/login", data=form,
                                     method="POST", headers=_UA)
        req.add_header("Content-Type", "application/x-www-form-urlencoded")
        try:
            opener.open(req, timeout=20).read()
        except urllib.error.HTTPError:
            pass
        cookies = [c.name for c in jar]
        check("种下了 lr_admin Cookie", "lr_admin" in cookies, cookies)

        print()
        print("二、拉管理页，检查删除按钮的 HTML/JS")
        req = urllib.request.Request(BASE + "/zhongzhuanzhan", headers=_UA)
        html = opener.open(req, timeout=20).read().decode("utf-8", "replace")

        # 删除按钮的 class 改过（del -> "btn del"），
        # 用 data-device 判定更稳 —— 删除按钮一定带它。
        check("有删除按钮", "data-device" in html and "删除" in html)
        check("删除全部按钮在", "delAll" in html)
        has_fetch = "/v1/admin/delete" in html
        check("JS 里的删除接口路径正确", has_fetch,
              re.findall(r"fetch\('[^']+'", html)[:4])

        # 抽出来看看那段 JS 长什么样（容易出错的地方）
        js_start = html.find("<script>")
        js_end = html.find("</script>", js_start)
        script = html[js_start:js_end] if js_start >= 0 else ""
        print(f"       JS 长度 {len(script)} 字符")
        # 花括号有没有配平（f-string 里双写 {{ }}，容易多写或少写）
        opens = script.count("{")
        closes = script.count("}")
        check("JS 花括号配平（f-string 双写容易错）", opens == closes,
              f"{{ {opens} vs }} {closes}")

        print()
        print("三、用 Cookie 调删除接口（浏览器就是这么调的）")
        body = json.dumps({"deviceId": "pc-1"}).encode()
        req = urllib.request.Request(BASE + "/v1/admin/delete", data=body,
                                     method="POST", headers=_UA)
        req.add_header("Content-Type", "application/json")
        try:
            resp = opener.open(req, timeout=20)
            result = json.loads(resp.read().decode("utf-8"))
            status = resp.status
        except urllib.error.HTTPError as exc:
            status = exc.code
            raw = exc.read().decode("utf-8", "replace")
            try:
                result = json.loads(raw)
            except Exception:                             # noqa: BLE001
                result = {"raw": raw[:150]}

        check("带 Cookie 的删除请求被接受（不是 401/403）",
              status == 200, f"HTTP {status}  {result}")
        check("删除成功", result.get("ok") is True, result)

        print()
        print("四、删完全部接口也要能用")
        req = urllib.request.Request(BASE + "/v1/admin/delete_all",
                                     data=b"{}", method="POST", headers=_UA)
        req.add_header("Content-Type", "application/json")
        try:
            resp = opener.open(req, timeout=20)
            result2 = json.loads(resp.read().decode("utf-8"))
            status2 = resp.status
        except urllib.error.HTTPError as exc:
            status2 = exc.code
            result2 = {"raw": exc.read().decode("utf-8", "replace")[:150]}
        check("delete_all 带 Cookie 也能用", status2 == 200, f"HTTP {status2}")
        check("delete_all 成功", result2.get("ok") is True, result2)

        print()
        print("=" * 62)
        print(f"通过 {passed} 项，失败 {failed} 项")
        return 0 if failed == 0 else 1
    finally:
        if relay is not None:
            try:
                relay.terminate()
                relay.wait(timeout=8)
            except Exception:                             # noqa: BLE001
                try:
                    relay.kill()
                except Exception:                     # noqa: BLE001
                    pass
        time.sleep(0.5)
        shutil.rmtree(work, ignore_errors=True)


if __name__ == "__main__":
    raise SystemExit(main())