# -*- coding: utf-8 -*-
r'''断言"手表端给中转地址补协议头"这件事真的做了，而且只有一处入口。

== 为什么要专门测这个 ==

用户报的故障：

    填了 yk.xxmxxs.top（没写协议头）-> 点「检查服务器」
    -> MalformedURLException: no protocol: yk.xxmxxs.top/v1/health

根因：`checkServer()` 直接拿 relayUrl() 的**原始字符串**拼 URL，
而补协议头的逻辑只在 RelayTransport 的构造函数里 ——
同一个地址"连接"时能用、"检查服务器"时崩。

修法是把规范化收到 relayUrl() 这一个入口。
**所以断言要盯两件事**：

    1. 规范化函数存在，而且规则正确（IP 走 http、域名走 https）
    2. relayUrl() 真的调了它（否则又是"改了函数没人用"）
    3. checkServer() 从 relayUrl() 取地址（不再自己拼原始值）
'''
from __future__ import annotations

import re
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parent.parent
JAVA = ROOT / "android" / "src" / "com" / "lanremote" / "watch"
MAIN = JAVA / "MainActivity.java"
TRANSPORT = JAVA / "RelayTransport.java"

FAILS: list = []


def check(name: str, ok: bool, why: str = "") -> None:
    print("  [%s] %s%s" % ("PASS" if ok else "FAIL", name,
                          ("  —— " + why) if (why and not ok) else ""))
    if not ok:
        FAILS.append(name)


def main() -> int:
    print("=" * 58)
    print("  手表端中转地址规范化")
    print("=" * 58)
    print()

    check("MainActivity.java 存在", MAIN.is_file())
    if not MAIN.is_file():
        return 1
    src = MAIN.read_text(encoding="utf-8")

    # ---- 1. 规范化函数存在 ----
    print("一、规范化函数")
    check("定义了 normalizeRelay()", "normalizeRelay(String raw)" in src,
          "没有它就又会出现 no protocol")

    # 从源码里把函数体抠出来检查规则
    m = re.search(r"static String normalizeRelay\(String raw\)\s*\{(.*?)\n    \}",
                  src, re.S)
    body = m.group(1) if m else ""
    check("函数体抠出来了", bool(body))
    check("已经有协议头就原样返回",
          "startsWith(\"http://\")" in body
          and "startsWith(\"https://\")" in body)
    check("空串返回空（代表只走局域网）", "url.isEmpty()" in body)
    check("纯 IP 走 http", 'matches("\\\\d{1,3}(\\\\.\\\\d{1,3}){3}")' in body
          or "matches(" in body and "d{1,3}" in body)
    check("localhost 走 http", "localhost" in body.lower())
    check(".local 走 http", ".local" in body)
    check("域名走 https", '"https://"' in body)

    # ---- 2. relayUrl() 真的调了它 ----
    print()
    print("二、relayUrl() 是不是唯一入口")
    m2 = re.search(r"private String relayUrl\(\)\s*\{(.*?)\n    \}", src, re.S)
    ru = m2.group(1) if m2 else ""
    check("relayUrl() 里调了 normalizeRelay", "normalizeRelay(saved)" in ru,
          "没调的话 checkServer 还是会拿到没协议头的地址")
    check("relayUrl() 里没有自己再写一遍规范化",
          "startsWith(\"http" not in ru,
          "应该只调 normalizeRelay，别复制逻辑")

    # ---- 3. checkServer 用的是 relayUrl() ----
    print()
    print("三、checkServer() 的来源")
    m3 = re.search(r"private void checkServer\(\)\s*\{(.*?)\n    \}", src, re.S)
    cs = m3.group(1) if m3 else ""
    check("checkServer() 里有 relayUrl()", "relayUrl()" in cs)
    check("checkServer() 不再直接拼原始字符串",
          "new java.net.URL(relay + \"/v1/health\")" in cs
          and "String relay = relayUrl()" in cs,
          "应该从 relayUrl() 取（已规范化过的）")

    # ---- 4. 两边规则一致 ----
    print()
    print("四、和 RelayTransport 的规则一致")
    tr = TRANSPORT.read_text(encoding="utf-8")
    check("RelayTransport 也会补协议头",
          '!url.startsWith("http://")' in tr)
    check("RelayTransport 里纯 IP 走 http",
          "d{1,3}" in tr)
    check("RelayTransport 里域名走 https",
          '"https://"' in tr)

    # ---- 5. 真实用例（模拟函数逻辑，确保规则对）----
    print()
    print("五、规则实算（用 Python 复刻一遍，看结果对不对）")

    def normalize(raw: str) -> str:
        url = (raw or "").strip()
        while url.endswith("/"):
            url = url[:-1]
        if not url or url.startswith(("http://", "https://")):
            return url
        host = url
        if "/" in host:
            host = host.split("/", 1)[0]
        if ":" in host:
            host = host.split(":", 1)[0]
        plain = (host.lower() == "localhost"
                 or host.lower().endswith(".local")
                 or re.fullmatch(r"\d{1,3}(\.\d{1,3}){3}", host) is not None)
        return ("http://" if plain else "https://") + url

    cases = [
        ("yk.xxmxxs.top", "https://yk.xxmxxs.top"),
        ("yk.xxmxxs.top/", "https://yk.xxmxxs.top"),
        ("https://yk.xxmxxs.top", "https://yk.xxmxxs.top"),
        ("http://10.20.30.40:13245", "http://10.20.30.40:13245"),
        ("10.20.30.40:13245", "http://10.20.30.40:13245"),
        ("192.168.2.156:8080", "http://192.168.2.156:8080"),
        ("localhost:8080", "http://localhost:8080"),
        ("lanremote.local:8765", "http://lanremote.local:8765"),
        ("", ""),
    ]
    for raw, want in cases:
        got = normalize(raw)
        check("  %-28r -> %s" % (raw, want), got == want,
              "实际得到 %r" % got)

    print()
    print("=" * 58)
    if FAILS:
        print("  失败 %d 项：%s" % (len(FAILS), ", ".join(FAILS)))
        return 1
    print("  全部通过")
    return 0


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