#!/usr/bin/env node
/* C-01 路由回归脚本：73 条 SPA 路由直访检查。
 * 检测三件套：① Django 404/JSON 劫持 ② #root 空（白屏）③ 正文长度。
 * 用法：node scripts/check_routes.mjs --base http://127.0.0.1:5173
 * 期望：PASS 73/73，hijacked=0，blank=0
 */
import { readFileSync } from 'node:fs'

const args = process.argv.slice(2)
const baseIdx = args.indexOf('--base')
const BASE = baseIdx >= 0 && args[baseIdx + 1] ? args[baseIdx + 1].replace(/\/$/, '') : 'http://127.0.0.1:5173'

// 与 src/App.tsx 的 <Route path> 一一对应（不含 * 兜底）
const ROUTES = [
  '/', '/settings', '/history', '/favorites',
  '/open-api-docs', '/open-api-directory',
  '/profile', '/profile/email', '/profile/phone', '/profile/change-password',
  '/use', '/document', '/open-api', '/utility', '/learn', '/articles', '/bug',
  '/search', '/messages', '/chat',
  '/open-api-detail/1', '/tool-detail', '/course-learn', '/post/1',
  '/privacy', '/agreement', '/manual', '/system-message',
  '/user-home/1', '/user-home', '/console',
  '/article-manage', '/bug-detail', '/article-editor', '/learn-manage', '/learn-editor',
  '/baidu-translate',
  '/wallet/points', '/wallet/coins', '/wallet/coins/recharge', '/task-center', '/wallet/invite',
  '/invite/abc123', '/forgot-password', '/register',
  '/utility/json-formatter', '/utility/base64', '/utility/timestamp', '/utility/regex',
  '/utility/code-runner', '/utility/text-diff', '/utility/encoding-converter',
  '/utility/charset-converter', '/utility/color-converter', '/utility/code-formatter',
  '/color-picker', '/qrcode-generator', '/utility/image-compressor', '/utility/calculator',
  '/utility/date-calculator', '/utility/image-editor', '/changelog',
  '/ip-location', '/currency-detail',
  '/open-api-detail/currency', '/open-api-detail/baidu-translate',
  '/open-api/air-quality-details', '/open-api/weather-details',
  '/open-api/qrcode-generator', '/open-api/ip-location', '/open-api/password-generator',
  '/shorturl-detail',
  // 旧路径重定向（应返回 SPA，由前端 <Navigate> 承接，不应被代理劫持）
  '/api-docs', '/api-directory', '/api', '/api-detail/1',
  '/api-detail/currency', '/api-detail/baidu-translate',
  '/api/air-quality-details', '/api/weather-details',
  '/api/qrcode-generator', '/api/ip-location', '/api/password-generator',
  '/article/1', '/user', '/user/1',
]

function isHijacked(status, text) {
  if (status === 404 && /Django|Not Found|Page not found/i.test(text)) return true
  const t = text.trim()
  // 后端 JSON 特征：{"code":...} / {"detail":...} 且无前端根节点
  if (/^\s*\{[\s\S]*"(code|detail|message)"[\s\S]*\}\s*$/.test(t.slice(0, 2000)) && !text.includes('id="root"')) return true
  return false
}

// dev 模式下 index.html 的 #root 恒为空（客户端水合前），
// 因此"白屏"只能断言"是否返回了 SPA 外壳"：含 id="root" 即算 SPA 到达。
// 真正的渲染白屏由 Playwright 抽查覆盖（见 PROGRESS）。
function isSpaShell(text) {
  return text.includes('id="root"')
}

let pass = 0, hijacked = 0, blank = 0
const bad = []
for (const r of ROUTES) {
  const url = BASE + r
  try {
    const res = await fetch(url, { redirect: 'manual' })
    const text = await res.text()
    const hj = isHijacked(res.status, text)
    const bl = !hj && !isSpaShell(text)
    if (hj) hijacked++
    if (bl) blank++
    if (!hj && !bl) { pass++; console.log(`ok      ${r}`) }
    else { bad.push(r); console.log(`${hj ? 'HIJACKED' : 'BLANK   '} ${r} (status=${res.status} len=${text.length})`) }
  } catch (e) {
    bad.push(r)
    console.log(`ERROR    ${r} (${e.message})`)
  }
}
console.log('---')
console.log(`ROUTES=${ROUTES.length} PASS=${pass} hijacked=${hijacked} blank=${blank}`)
if (bad.length) { console.log('BAD:'); bad.forEach((r) => console.log(' - ' + r)) }
process.exit(pass === ROUTES.length ? 0 : 1)