package panel

import (
	"bytes"
	"net/http/httptest"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"strconv"
	"strings"
	"testing"
	"time"
)

// TestAppJSSyntax app.js 必须能通过 JS 解析器语法校验。
//
// 为什么需要：app.js 是 go:embed 进二进制的静态资源，Go 编译器不检查其内容——
// 一次对象字面量键名未加引号（Model_chat_GLM5.2 被解析成属性访问 + 数字字面量）
// 就让整个面板白屏，而所有 Go 测试依然全绿。此测试把语法校验前移到 CI。
// 无 node 环境时跳过（不阻塞无 Node 的构建机）。
func TestAppJSSyntax(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not available; skipping JS syntax check")
	}
	path, err := filepath.Abs("app.js")
	if err != nil {
		t.Fatal(err)
	}
	out, err := exec.Command(node, "--check", path).CombinedOutput()
	if err != nil {
		t.Fatalf("app.js syntax error:\n%s", out)
	}
}

// TestIndexHTMLNoInlineScript index.html 不得含内联 <script> 块：
// 严格 CSP（script-src 'self'）会拦截内联脚本，页面将完全不可用。
// 外链形式 <script src="..."> 允许。
func TestIndexHTMLNoInlineScript(t *testing.T) {
	p := newTestPanel()
	rec := httptest.NewRecorder()
	p.ServeHTTP(rec, httptest.NewRequest("GET", "/panel/", nil))
	body := rec.Body.String()

	rest := body
	for {
		idx := strings.Index(rest, "<script")
		if idx < 0 {
			break
		}
		rest = rest[idx:]
		end := strings.Index(rest, ">")
		if end < 0 {
			break
		}
		tag := rest[:end+1]
		if !strings.Contains(tag, "src=") {
			t.Fatalf("index.html contains inline <script> (blocked by CSP): %s", tag)
		}
		rest = rest[end:]
	}
}

// TestAppJSTopLevelSmoke app.js 顶层求值冒烟（v1.11.3/1.11.4 两连炸后补的运行时闸门）：
// node + DOM 桩执行 app.js（含按 hash 落到各视图的 go() 顶层调用），抓 TDZ/
// ReferenceError 类运行时错误——Go 侧 frontend_test 不执行 JS，语法层检查对此全盲。
// 无 node 的环境跳过（CI/精简机不受影响）；harness 与 app.js 同判（app.js 顶层
// start() 的 setInterval 会让 node 事件循环不退出，故成功路径显式 exit(0)）。
func TestAppJSTopLevelSmoke(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; JS smoke skipped")
	}
	harness := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const inert = new Proxy(function () {}, {
  get(t, k) { if (k === Symbol.toPrimitive) return () => ''; return inert; },
  set() { return true; },
  apply() { return inert; },
  construct() { return inert; },
  has() { return true; },
});
const sandbox = new Proxy({
  location: { hash: process.env.SMOKE_HASH || '#taskscenter' },
  history: { replaceState() {} },
  localStorage: { getItem: () => null, setItem() {} },
  navigator: { clipboard: { writeText: () => Promise.resolve() } },
  document: { querySelectorAll: () => [], querySelector: () => inert, getElementById: () => inert, addEventListener() {}, documentElement: inert, head: inert, body: inert, createElement: () => inert, cookie: '' },
  fetch: () => new Promise(() => {}),
  addEventListener() {}, removeEventListener() {},
  matchMedia: () => ({ matches: false, addEventListener() {} }),
  setInterval, clearInterval, setTimeout, clearTimeout,
  console, JSON, Math, Date, Number, String, Boolean, Object, Array, Promise, Map, Set, RegExp, Error, TypeError, isNaN, parseInt, parseFloat, encodeURIComponent, decodeURIComponent, URL, Symbol, Proxy, Reflect,
}, { get(t, k) { return t[k]; }, has() { return true; } });
sandbox.window = sandbox; sandbox.globalThis = sandbox;
vm.createContext(sandbox);
try {
  vm.runInContext(src, sandbox, { filename: 'app.js' });
  console.log('SMOKE OK');
  process.exit(0);
} catch (e) {
  console.log('SMOKE FAIL:', (e && e.stack ? e.stack : e).toString().split('\n').slice(0, 5).join('\n'));
  process.exit(1);
}
`
	hf, err := os.CreateTemp(t.TempDir(), "smoke-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := hf.WriteString(harness); err != nil {
		t.Fatal(err)
	}
	hf.Close()
	for _, hash := range []string{"#taskscenter", "#accounts", "#usage", "#models", "#config", "#logs", "#packages"} {
		cmd := exec.Command(node, hf.Name(), "app.js")
		cmd.Dir = "." // 测试工作目录 = internal/panel
		cmd.Env = append(os.Environ(), "SMOKE_HASH="+hash)
		out, err := cmd.CombinedOutput()
		if err != nil {
			t.Fatalf("app.js 顶层求值 %s 崩溃: %v\n%s", hash, err, out)
		}
		if !bytes.Contains(out, []byte("SMOKE OK")) {
			t.Fatalf("app.js smoke %s 未通过:\n%s", hash, out)
		}
	}
}

// 积分扣除维度的格式必须稳定，且缺样本/缺匹配 Token 时不能伪造比例。
func TestAppJSCreditDimensionFormatting(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; credit formatting test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
	const start = src.indexOf('function trimFixed');
const end = src.indexOf('function usStat');
if (start < 0 || end < 0) throw new Error('credit helpers not found');
const ctx = { Number, String, RegExp };
vm.createContext(ctx);
vm.runInContext(
  src.slice(start, end) +
  '\nthis.fmtCredit=fmtCredit; this.fmtCreditRatio=fmtCreditRatio; this.fmtModelRate=fmtModelRate;',
  ctx
);
process.stdout.write(JSON.stringify({
  credit: ctx.fmtCredit(1.25),
  zero: ctx.fmtCredit(0),
  hundred: ctx.fmtCredit(100),
  ratio: ctx.fmtCreditRatio(12.5, 2, 400),
  noSamples: ctx.fmtCreditRatio(12.5, 0, 400),
  noTokens: ctx.fmtCreditRatio(12.5, 2, 0),
  rate: ctx.fmtModelRate('0.5'),
  noRate: ctx.fmtModelRate(''),
}));`
	f, err := os.CreateTemp(t.TempDir(), "credit-format-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("credit formatting node test failed: %v\n%s", err, out)
	}
	const want = `{"credit":"1.25","zero":"0","hundred":"100","ratio":"12.5 / 1M","noSamples":"—","noTokens":"—","rate":"x0.5","noRate":"—"}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("credit formatting=%s want %s", out, want)
	}
}

// 模型限流时间必须同时支持上游 reset_at、网关 until 和无重置时间三种形态。
func TestAppJSRateLimitMeta(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; rate limit formatting test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('function dur(');
const end = src.indexOf('function rateLimitRowsHtml');
if (start < 0 || end < 0) throw new Error('rate limit helpers not found');
const ctx = { Date, Number, String, Math };
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.rateLimitMeta=rateLimitMeta;', ctx);
const now = new Date(2026, 8, 28, 14, 0, 0).getTime();
const reset = new Date(2026, 8, 28, 16, 0, 0).getTime();
const until = new Date(2026, 8, 28, 15, 0, 0).getTime();
const rate = ctx.rateLimitMeta({ model: 'glm-5.3', kind: 'rate_limit', reset_at: new Date(reset).toISOString(), until: new Date(until).toISOString() }, now);
const unavailable = ctx.rateLimitMeta({ model: 'missing', kind: 'model_unavailable', until: new Date(until).toISOString() }, now);
const unknown = ctx.rateLimitMeta({ model: 'glm-5.3', kind: 'rate_limit' }, now);
process.stdout.write(JSON.stringify({
  rate: rate.detail,
  unavailable: unavailable.detail,
  unknown: unknown.detail,
}));`
	f, err := os.CreateTemp(t.TempDir(), "rate-limit-format-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("rate-limit formatting node test failed: %v\n%s", err, out)
	}
	const want = `{"rate":"预计 2026-09-28 16:00 解封（剩余 2时00分） · 网关最快 1时00分 后重试","unavailable":"预计 1时00分 后重试","unknown":"预计解封时间未知"}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("rate-limit formatting=%s want %s", out, want)
	}
}

// 请求记录行必须紧凑、可读，并带上调用来源（IP / UA）；来源缺失时以 — 兜底。
func TestAppJSRequestLogFormatting(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; request log formatting test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const escStart = src.indexOf('function esc(');
const escEnd = src.indexOf('function ago(');
const fmtStart = src.indexOf('function fmtTok(');
const fmtEnd = src.indexOf('function usStat(');
const reqStart = src.indexOf('function requestLogText');
const reqEnd = src.indexOf('function fmtBytes');
if ([escStart, escEnd, fmtStart, fmtEnd, reqStart, reqEnd].some(v => v < 0)) throw new Error('request log helpers not found');
const ctx = { Date, Number, String, Math, RegExp, isNaN };
vm.createContext(ctx);
vm.runInContext(
  src.slice(escStart, escEnd) + src.slice(fmtStart, fmtEnd) + src.slice(reqStart, reqEnd) +
  '\nthis.requestLogText=requestLogText;',
  ctx
);
const time = new Date(2026, 8, 28, 14, 5, 6).toISOString();
const good = { time, status: 200, outcome: 'success', model: 'glm-5.3', account: '账号(uid8)', duration_ms: 1250, total_tokens: 2300, credit_known: true, credit: 0.12, request_id: 'req-1', client_ip: '203.0.113.7', user_agent: 'python-requests/2.31.0' };
const noSource = { ...good, request_id: 'req-3', client_ip: '', user_agent: '' };
const cached = { ...good, request_id: 'req-2', cache_hit_tokens: 2257, cache_miss_tokens: 43 };
process.stdout.write(JSON.stringify({
  good: ctx.requestLogText(good),
  noSource: ctx.requestLogText(noSource),
  cached: ctx.requestLogText(cached),
}));`
	f, err := os.CreateTemp(t.TempDir(), "request-log-format-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("request log formatting node test failed: %v\n%s", err, out)
	}
	text := "14:05:06 | 200 成功 | glm-5.3 | 账号(uid8) | 203.0.113.7 | python-requests/2.31.0 | 1.25s | 2.3k tok | 0.12 credit | req-1"
	noSource := "14:05:06 | 200 成功 | glm-5.3 | 账号(uid8) | — | — | 1.25s | 2.3k tok | 0.12 credit | req-3"
	cached := "14:05:06 | 200 成功 | glm-5.3 | 账号(uid8) | 203.0.113.7 | python-requests/2.31.0 | 1.25s | 2.3k tok | 0.12 credit | 命中 98.1% | req-2"
	want := `{"good":` + strconv.Quote(text) + `,"noSource":` + strconv.Quote(noSource) + `,"cached":` + strconv.Quote(cached) + `}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("request log formatting=%s want %s", out, want)
	}
}

// 请求记录筛选：IP / UA / 模型 / 账号 / 请求 ID 的包含匹配（空格分词 AND）+ 结果精确匹配。
func TestAppJSRequestMatch(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; request filter test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('function reqMatch');
const end = src.indexOf('function reqOutcomeTag');
if (start < 0 || end < 0) throw new Error('reqMatch not found');
const ctx = {};
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.reqMatch=reqMatch;', ctx);
const base = { outcome: 'success', client_ip: '203.0.113.7', user_agent: 'python-requests/2.31.0', model: 'cn:glm-5.3', account: '示例(uid8)', request_id: 'req-1' };
const other = { outcome: 'http_error', client_ip: '198.51.100.4', user_agent: 'Mozilla/5.0 Chrome/120', model: 'global:hy3', account: '甲(uid9)', request_id: 'req-2' };
const rows = [base, other];
const pick = f => rows.filter(e => ctx.reqMatch(e, f)).map(e => e.request_id);
process.stdout.write(JSON.stringify({
  all: pick({ q: '', outcome: '' }),
  byIP: pick({ q: '203.0.113', outcome: '' }),
  byUA: pick({ q: 'chrome/120', outcome: '' }),
  byModel: pick({ q: 'glm', outcome: '' }),
  multiKw: pick({ q: 'glm success', outcome: '' }),
  multiMiss: pick({ q: 'glm chrome', outcome: '' }),
  byOutcome: pick({ q: '', outcome: 'http_error' }),
  combined: pick({ q: '198.51', outcome: 'http_error' }),
}));`
	f, err := os.CreateTemp(t.TempDir(), "request-filter-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("request filter node test failed: %v\n%s", err, out)
	}
	// q 对 outcome 不参与匹配（outcome 有独立下拉），multiKw 里的 success 命中不了任何字段。
	const want = `{"all":["req-1","req-2"],"byIP":["req-1"],"byUA":["req-2"],"byModel":["req-1"],"multiKw":[],"multiMiss":[],"byOutcome":["req-2"],"combined":["req-2"]}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("request filter=%s want %s", out, want)
	}
}

// 模型按条件查询：域 / 能力 / 档位 / 价格 / 关键词，以及倍率、上下文、输出排序。
func TestAppJSModelFilter(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; model filter test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('function mdRateValue');
const end = src.indexOf('function mdRowHtml');
if (start < 0 || end < 0) throw new Error('model filter helpers not found');
const ctx = { Number, String, Array, Object, isFinite, parseFloat };
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.mdMatch=mdMatch; this.mdSortList=mdSortList; this.mdRateValue=mdRateValue;', ctx);
const models = [
  { id: 'cn:glm-5.2', name: 'GLM-5.2', vendor: 'Zhipu', tags: ['视觉'], supports_tool_call: true, supports_images: true, supports_reasoning: true, can_disable_thinking: true, supported_efforts: ['high', 'xhigh'], default_effort: 'high', is_default: false, credits: '0.79', promo_factor: 0.5, promo_credits: '0.40', promo_label: '夜间折扣', context_length: 1000000, max_output_tokens: 131000 },
  { id: 'cn:hy3', name: 'Hy3', supports_tool_call: true, supports_images: true, supports_reasoning: true, can_disable_thinking: false, supported_efforts: ['low', 'high'], default_effort: 'high', is_default: false, credits: '0', promo_factor: 0, promo_credits: '0', promo_label: '限时免费', context_length: 192000, max_output_tokens: 64000 },
  { id: 'global:hy3', name: 'Hy3 Global', supports_tool_call: false, supports_images: false, supports_reasoning: false, supported_efforts: [], is_default: false, credits: '0.11', context_length: 1000000, max_output_tokens: 393000 },
  { id: 'cn:auto', name: 'Auto', supports_tool_call: true, supports_images: true, supports_reasoning: true, is_default: true, credits: null, context_length: 256000, max_output_tokens: 32000 },
];
const ids = list => list.map(m => m.id);
const filter = f => ids(ctx.mdSortList(models.filter(m => ctx.mdMatch(m, f)), f));
process.stdout.write(JSON.stringify({
  all: ids(models),
  realm: filter({ realm: 'cn' }),
  tool: filter({ cap: 'tool' }),
  vision: filter({ cap: 'vision' }),
  reasoning: filter({ cap: 'reasoning' }),
  isDefault: filter({ cap: 'default' }),
  effortOff: filter({ effort: 'off' }),
  effortLow: filter({ effort: 'low' }),
  free: filter({ promo: 'free' }),
  promo: filter({ promo: 'promo' }),
  discount: filter({ promo: 'discount' }),
  q: filter({ q: 'glm zhipu' }),
  qMiss: filter({ q: 'glm nosuch' }),
  sortRate: filter({ sort: 'rate' }),
  sortContext: filter({ sort: 'context' }),
  sortOutput: filter({ sort: 'output' }),
  sortName: filter({ sort: 'name' }),
  rateFree: ctx.mdRateValue(models[1]),
  rateMissing: ctx.mdRateValue(models[3]),
}));`
	f, err := os.CreateTemp(t.TempDir(), "model-filter-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("model filter node test failed: %v\n%s", err, out)
	}
	const want = `{"all":["cn:glm-5.2","cn:hy3","global:hy3","cn:auto"],` +
		`"realm":["cn:glm-5.2","cn:hy3","cn:auto"],` +
		`"tool":["cn:glm-5.2","cn:hy3","cn:auto"],` +
		`"vision":["cn:glm-5.2","cn:hy3","cn:auto"],` +
		`"reasoning":["cn:glm-5.2","cn:hy3","cn:auto"],` +
		`"isDefault":["cn:auto"],` +
		`"effortOff":["cn:glm-5.2"],` +
		`"effortLow":["cn:hy3"],` +
		`"free":["cn:hy3"],` +
		`"promo":["cn:glm-5.2","cn:hy3"],` +
		`"discount":["cn:glm-5.2"],` +
		`"q":["cn:glm-5.2"],` +
		`"qMiss":[],` +
		`"sortRate":["cn:hy3","global:hy3","cn:glm-5.2","cn:auto"],` +
		`"sortContext":["cn:glm-5.2","global:hy3","cn:auto","cn:hy3"],` +
		`"sortOutput":["global:hy3","cn:glm-5.2","cn:hy3","cn:auto"],` +
		`"sortName":["cn:auto","cn:glm-5.2","cn:hy3","global:hy3"],` +
		`"rateFree":0,"rateMissing":null}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("model filter=%s\nwant %s", out, want)
	}
}

// 用量时序图的柱体类名不得叫 bar：账号池的积分条是 .bar{height:3px}，而 SVG2 里
// height 是 rect 的 CSS 几何属性——同名类会把每根柱子压成 3px 高，图看起来"没数据"。
// 这个坑只能在浏览器里看出来，所以在这里钉住类名。
func TestAppJSUsageChartBarClass(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; usage chart test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('function parsePointTime');
const end = src.indexOf('function fmtTokTip');
const escStart = src.indexOf('function esc(');
const escEnd = src.indexOf('function ago(');
const fmtStart = src.indexOf('function fmtTok(');
const fmtEnd = src.indexOf('function usStat(');
if ([start, end, escStart, escEnd, fmtStart, fmtEnd].some(v => v < 0)) throw new Error('usage chart helpers not found');
const host = { innerHTML: '', textContent: '' };
const ctx = {
  Date, Number, String, Math, RegExp, isNaN, Set, Array, Object, Infinity,
  document: { getElementById: () => host },
  $: () => host,
};
vm.createContext(ctx);
vm.runInContext(src.slice(escStart, escEnd) + src.slice(fmtStart, fmtEnd) + src.slice(start, end) +
  '\nthis.renderUsageChart=renderUsageChart;', ctx);
const series = [
  { t: '2026-09-30T09', scope: 'hour', prompt_tokens: 35, completion_tokens: 16, total_tokens: 51, requests: 1 },
  { t: '2026-09-30T11', scope: 'hour', prompt_tokens: 978324, completion_tokens: 20621, total_tokens: 998945, requests: 39 },
  { t: '2026-09-30T13', scope: 'hour', prompt_tokens: 27400952, completion_tokens: 104913, total_tokens: 27505865, requests: 200 },
];
ctx.renderUsageChart(series);
const svg = host.innerHTML;
process.stdout.write(JSON.stringify({
  hasUsbar: svg.includes('class="usbar"'),
  hasBareBar: /class="bar"/.test(svg),
  hasGradient: svg.includes('usGradP') && svg.includes('usGradC'),
  barCount: (svg.match(/class="usbar"/g) || []).length,
  hasPeak: svg.includes('峰值'),
  hasAvg: svg.includes('均值'),
  emptyState: (function () { ctx.renderUsageChart([]); return host.innerHTML.includes('us-empty'); })(),
}));`
	f, err := os.CreateTemp(t.TempDir(), "usage-chart-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("usage chart node test failed: %v\n%s", err, out)
	}
	const want = `{"hasUsbar":true,"hasBareBar":false,"hasGradient":true,"barCount":6,"hasPeak":true,"hasAvg":true,"emptyState":true}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("usage chart=%s\nwant %s", out, want)
	}
}

// 时间范围控件：预设 → 查询参数的映射。要点：
//   - 「今天」必须发浏览器本地时区的 00:00（服务端时区未必一致），且不带 to；
//   - 滚动预设 rolling=true 发 hours（服务端整点对齐），rolling=false 折算成 from；
//   - 「全部历史」两者都不发；「自定义」发用户挑的 from/to。
func TestAppJSTimeRangeQuery(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; time range test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('const TRANGE_PRESETS');
const end = src.indexOf('function rateLimitMeta');
if (start < 0 || end < 0 || end < start) throw new Error('trange helpers not found');
const host = { innerHTML: '' };
const ctx = {
  Date, Number, String, Math, Map, Array, Object, isNaN, URLSearchParams,
  document: { getElementById: () => host },
  $: () => host,
  esc: s => String(s == null ? '' : s),
};
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) +
  '\nthis.trangeState=trangeState; this.trangeQuery=trangeQuery; this.trangeLabel=trangeLabel; this.trangeMidnight=trangeMidnight;', ctx);
const q = (preset, rolling) => {
  ctx.trangeState('t').preset = preset;
  return ctx.trangeQuery('t', rolling).toString();
};
const secOf = d => String(Math.floor(d.getTime() / 1000));
const approx = (qs, wantSec) => {
  const m = /(?:^|&)from=(\d+)/.exec(qs);
  return m && Math.abs(Number(m[1]) - wantSec) < 120;
};
const now = Date.now();
const todayQ = q('today', true);
process.stdout.write(JSON.stringify({
  todayIsMidnight: todayQ === 'from=' + secOf(ctx.trangeMidnight()),
  todayNoTo: !/to=/.test(todayQ),
  rolling24: q('24', true),
  rolling72: q('72', true),
  rolling0: q('0', true),
  log24From: approx(q('24', false), Math.floor((now - 24 * 3600e3) / 1000)),
  log24HasHours: /hours=/.test(q('24', false)),
  log7dFrom: approx(q('168', false), Math.floor((now - 168 * 3600e3) / 1000)),
  custom: (function () {
    const st = ctx.trangeState('t');
    st.preset = 'custom';
    st.from = new Date(2026, 8, 30, 9, 0, 0);
    st.to = new Date(2026, 8, 30, 18, 30, 0);
    return ctx.trangeQuery('t', true).toString();
  })(),
  labelCustom: ctx.trangeLabel('t'),
  labelToday: (function () { ctx.trangeState('t').preset = 'today'; return ctx.trangeLabel('t'); })(),
}));`
	f, err := os.CreateTemp(t.TempDir(), "trange-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("time range node test failed: %v\n%s", err, out)
	}
	local := func(h, m int) string {
		return strconv.FormatInt(time.Date(2026, 9, 30, h, m, 0, 0, time.Local).Unix(), 10)
	}
	want := `{"todayIsMidnight":true,"todayNoTo":true,` +
		`"rolling24":"hours=24","rolling72":"hours=72","rolling0":"",` +
		`"log24From":true,"log24HasHours":false,"log7dFrom":true,` +
		`"custom":"from=` + local(9, 0) + `&to=` + local(18, 30) + `",` +
		`"labelCustom":"9-30 09:00 → 9-30 18:30","labelToday":"今天"}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("time range=%s\nwant %s", out, want)
	}
}

// 配置表单与 CFG_MAP 必须一一对应，且面板声称"可在线改"的热生效键必须真的
// 出现在表单里。
//
// 为什么需要：`logging.request_client_info` 曾经在表单里存在过，后来在某次改动中
// 被连带删掉，而 Go 侧的配置键、livecfg 热生效通路、README 的描述都还在——面板
// 少了一个开关而 Go 测试全绿，只有人肉点开配置页才会发现。这里把"表单字段 ↔
// CFG_MAP"与"关键热改键必须在表单里"两条都钉住。
func TestConfigFormMatchesCFGMap(t *testing.T) {
	src, err := os.ReadFile("app.js")
	if err != nil {
		t.Fatal(err)
	}
	js := string(src)
	htmlBytes, err := os.ReadFile("index.html")
	if err != nil {
		t.Fatal(err)
	}
	html := string(htmlBytes)

	// CFG_MAP 块（下面两条检查共用）。
	mapBlock := js[strings.Index(js, "const CFG_MAP = {"):]
	mapBlock = mapBlock[:strings.Index(mapBlock, "\n};")]
	// 不能按行首匹配：CFG_MAP 里多个键写在同一行（`a: [...], b: [...]`），只有行首
	// 那个带换行缩进。按「前面是行首或分隔符」判定才不漏。
	inMap := func(name string) bool {
		return regexp.MustCompile(`(?:^|[\s,{])` + regexp.QuoteMeta(name) + `:\s*\[`).MatchString(mapBlock)
	}

	// 1) 表单里的每个 name 都要有 CFG_MAP 条目（否则收集/回填都拿不到它）。
	form := html[strings.Index(html, `<form id="cfgForm">`):]
	form = form[:strings.Index(form, "</form>")]
	names := map[string]bool{}
	for _, m := range regexp.MustCompile(`name="([a-z_0-9]+)"`).FindAllStringSubmatch(form, -1) {
		names[m[1]] = true
	}
	if len(names) == 0 {
		t.Fatal("未从配置表单解析出任何 name 字段")
	}
	for n := range names {
		if !inMap(n) {
			t.Errorf("表单字段 %q 在 CFG_MAP 里没有条目（保存时会被静默丢弃）", n)
		}
	}

	// 2) CFG_MAP 里的每个键都要在表单里有控件（否则回填/保存是空转）。
	for _, m := range regexp.MustCompile(`(?:^|[\s,{])([a-z_0-9]+):\s*\[`).FindAllStringSubmatch(mapBlock, -1) {
		if !names[m[1]] {
			t.Errorf("CFG_MAP 键 %q 在配置表单里没有对应控件", m[1])
		}
	}

	// 3) 明确断言这一个键：后端有配置项、README 说面板可改，UI 不能少。
	if !strings.Contains(js, "request_client_info: ['logging', 'request_client_info']") {
		t.Error("CFG_MAP 缺 request_client_info 条目")
	}
	if !names["request_client_info"] {
		t.Error("配置表单缺「记录调用来源」开关（logging.request_client_info）")
	}
}

// 同到期时间按面额降序；其余未用完包与零/负余额包分别聚合。
func TestAppJSDetailGroups(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; detail groups test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('const PK_DEFAULT_DETAIL_LIMIT');
const end = src.indexOf('function renderPackages');
if (start < 0 || end < 0) throw new Error('detail group functions not found');
const ctx = { Date, Math, Number, String, Map, Array, Object, isFinite };
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.pkDetailGroups = pkDetailGroups; this.pkDetailLimit = pkDetailLimit;', ctx);
const input = [
  { id: 'small-late', size: 100, remain: 1, expires_at: 400 },
  { id: 'zero-early-b', size: 200, remain: 0, expires_at: 200 },
  { id: 'small-early', size: 100, remain: 2, expires_at: 200 },
  { id: 'large-unknown', size: 300, remain: 3, end_time: '' },
  { id: 'zero-early-a', size: 200, remain: -1, expires_at: 200 },
  { id: 'small-unknown', size: 100, remain: 1, end_time: '' },
  { id: 'large-early', size: 300, remain: 4, expires_at: 200 },
  { id: 'zero-late', size: 300, remain: 0, expires_at: 300 },
];
const before = input.map(p => p.id).join(',');
const out = ctx.pkDetailGroups(input, 2);
process.stdout.write(JSON.stringify({
  visible: out.visible.map(p => p.id),
  rest: out.rest.map(p => p.id),
  used: out.used.map(p => p.id),
  restSize: out.restSize,
  restRemain: out.restRemain,
  usedSize: out.usedSize,
  defaultLimit: ctx.pkDetailLimit({}),
  configuredLimit: ctx.pkDetailLimit({ panel: { package_detail_limit: 7 } }),
  unchanged: input.map(p => p.id).join(',') === before,
}));`
	f, err := os.CreateTemp(t.TempDir(), "detail-groups-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("detail groups node test failed: %v\n%s", err, out)
	}
	const want = `{"visible":["large-early","small-early"],"rest":["small-late","large-unknown","small-unknown"],"used":["zero-early-b","zero-early-a","zero-late"],"restSize":500,"restRemain":5,"usedSize":700,"defaultLimit":5,"configuredLimit":7,"unchanged":true}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("detail groups=%s want %s", out, want)
	}
}

// 精确剩余天数聚合、账号内按总余额钳制、无到期批次不进入图表。
func TestAppJSExpirySummary(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; expiry summary test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('const PK_ACCOUNT_COLORS');
const end = src.indexOf('function renderExpiryDistribution');
if (start < 0 || end < 0) throw new Error('expiry summary functions not found');
const ctx = { Date, Math, Number, String, Map, Array, Object, isFinite };
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.summarizeCreditDays = summarizeCreditDays; this.pkAccountColorMap = pkAccountColorMap;', ctx);
const day = 86400000, now = 100000;
const out = ctx.summarizeCreditDays([
  { uid: 'a', remain: 100, packages: [
    { name: 'soon-a', remain: 30, expires_at: now + day },
    { name: 'later', remain: 70, expires_at: now + 7 * day },
  ] },
  { uid: 'b', remain: 55, packages: [
    { name: 'soon-b', remain: 20, expires_at: now + day },
    { name: 'unknown', remain: 5, end_time: '' },
  ] },
  { uid: 'err', error: 'offline' },
], now);
process.stdout.write(JSON.stringify({
  rows: out.rows.map(row => ({ days: row.days, credits: row.credits })),
  accountCount: out.accountCount,
  unavailable: out.unavailable,
  colorA: ctx.pkAccountColorMap([{ uid: 'b' }, { uid: 'a' }]).get('a'),
  colorB: ctx.pkAccountColorMap([{ uid: 'a' }, { uid: 'b' }]).get('b'),
}));`
	f, err := os.CreateTemp(t.TempDir(), "expiry-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("expiry summary node test failed: %v\n%s", err, out)
	}
	const want = `{"rows":[{"days":1,"credits":50},{"days":7,"credits":70}],"accountCount":3,"unavailable":1,"colorA":"#4f8cff","colorB":"#25b08b"}`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("expiry summary=%s want %s", out, want)
	}
}

// TestAppJSCollectConfigClearable 钉住 collectConfig 的空串语义。
//
// 覆盖型字段（user_agent / prompt_file）空串必须照发：漏发会让面板显示"已保存"
// 而 config.json 里的值没变（issue #102 附带发现 2）。
//
// 同时钉住反面：其余文本字段空串仍然不下发。这条同样重要——若哪天为了修上面那个
// 问题改成"所有空串都发"，表单里任何一个没填的框都会变成"请清空"，静默抹掉配置。
func TestAppJSCollectConfigClearable(t *testing.T) {
	node, err := exec.LookPath("node")
	if err != nil {
		t.Skip("node not installed; collectConfig test skipped")
	}
	script := `const fs = require('fs');
const vm = require('vm');
const src = fs.readFileSync(process.argv[2], 'utf8');
const start = src.indexOf('const CFG_MAP');
const end = src.indexOf('/* Go 时长字段即时校验');
if (start < 0 || end < 0 || end < start) throw new Error('collectConfig region not found');
const mk = v => ({ type: 'text', value: v });
const cfgForm = { elements: {
  listen: mk(''),
  api_key: mk('secret'),
  user_agent: mk(''),
  prompt_file: mk(''),
  checkin_hours: mk(''),
}};
const ctx = {
  Date, Number, String, Math, Map, Array, Object, isNaN, URLSearchParams, Set,
  document: { getElementById: id => (id === 'cfgForm' ? cfgForm : null) },
  $: id => (id === 'cfgForm' ? cfgForm : null),
};
vm.createContext(ctx);
vm.runInContext(src.slice(start, end) + '\nthis.collectConfig = collectConfig;', ctx);
const out = ctx.collectConfig();
const has = (o, k) => Object.prototype.hasOwnProperty.call(o || {}, k);
process.stdout.write(JSON.stringify([
  has(out.upstream, 'user_agent'), (out.upstream || {}).user_agent,
  has(out.prompt, 'file'), (out.prompt || {}).file,
  has(out, 'listen'),
  has(out.schedule, 'checkin_hours'),
  out.api_key
]));`
	f, err := os.CreateTemp(t.TempDir(), "cfgc-*.cjs")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := f.WriteString(script); err != nil {
		t.Fatal(err)
	}
	f.Close()
	out, err := exec.Command(node, f.Name(), "app.js").CombinedOutput()
	if err != nil {
		t.Fatalf("collectConfig node test failed: %v\n%s", err, out)
	}
	// [user_agent 已发, 其值, prompt.file 已发, 其值, listen 未发, checkin_hours 未发, api_key]
	const want = `[true,"",true,"",false,false,"secret"]`
	if strings.TrimSpace(string(out)) != want {
		t.Fatalf("collectConfig=%s want %s", strings.TrimSpace(string(out)), want)
	}
}