课程管理新增单词与数学思维内容编辑:单词词库落库(word_entry+0007迁移,表空回退words.json),家长端按天增删改单词;数学思维编辑器对标语法编辑器;课程管理加入两张入口卡片

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/parent/dashboard.tsx

@@ -113,7 +113,7 @@ export function ParentDashboard({
             <TemplatesTab data={templates} />
           </Section>
 
-          <Section title="课程管理" desc="英语语法课程编辑与每周检测成绩">
+          <Section title="课程管理" desc="英语语法/单词、数学思维课程编辑与每周检测成绩">
             <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
               <Link href="/parent/grammar" className="block">
                 <div className="rounded-xl border border-slate-100 bg-white p-4 shadow-soft transition-transform duration-200 hover:-translate-y-0.5">
@@ -121,6 +121,18 @@ export function ParentDashboard({
                   <p className="mt-1 text-xs text-muted-foreground">改标题/目标/课文,保存即生效</p>
                 </div>
               </Link>
+              <Link href="/parent/words" className="block">
+                <div className="rounded-xl border border-slate-100 bg-white p-4 shadow-soft transition-transform duration-200 hover:-translate-y-0.5">
+                  <p className="font-bold text-slate-900">📖 编辑英语单词</p>
+                  <p className="mt-1 text-xs text-muted-foreground">按天增删改单词与释义,保存即生效</p>
+                </div>
+              </Link>
+              <Link href="/parent/math" className="block">
+                <div className="rounded-xl border border-slate-100 bg-white p-4 shadow-soft transition-transform duration-200 hover:-translate-y-0.5">
+                  <p className="font-bold text-slate-900">🧮 编辑数学思维课程</p>
+                  <p className="mt-1 text-xs text-muted-foreground">改标题/目标/课文,保存即生效</p>
+                </div>
+              </Link>
               <div className="rounded-xl border border-slate-100 bg-white p-4 shadow-soft">
                 <p className="font-bold text-slate-900">📝 每周检测成绩</p>
                 <div className="mt-2 space-y-1">

src/app/parent/math/[pointId]/page.tsx

@@ -0,0 +1,42 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { BackgroundBlobs } from "@/components/background-blobs";
+import { Badge } from "@/components/ui/badge";
+import { getSessionUser } from "@/lib/auth";
+import { getMathPoint } from "@/lib/math";
+import { EditorForm } from "../editor-form";
+
+// xuchao: 单个数学知识点编辑页
+export default async function MathEditPage({ params }: { params: Promise<{ pointId: string }> }) {
+  const parent = await getSessionUser();
+  if (!parent) redirect("/login");
+  if (parent.role !== "parent") redirect("/kid");
+
+  const pointId = (await params).pointId;
+  const point = await getMathPoint(pointId);
+  if (!point) redirect("/parent/math");
+
+  return (
+    <main className="relative mx-auto max-w-3xl space-y-5 p-4 pb-10">
+      <BackgroundBlobs />
+      <header className="flex flex-wrap items-center justify-between gap-2">
+        <Link href="/parent/math" className="text-sm font-medium text-indigo-600">
+          ← 课程列表
+        </Link>
+        <div className="flex items-center gap-2">
+          <Badge className="bg-indigo-100 text-indigo-700 hover:bg-indigo-100">{point.moduleName}</Badge>
+          <h1 className="text-lg font-extrabold text-slate-900">{point.title}</h1>
+        </div>
+      </header>
+
+      <div className="rounded-2xl border border-slate-100 bg-white p-5 shadow-soft">
+        <EditorForm
+          pointId={point.pointId}
+          initialTitle={point.title}
+          initialSummary={point.summary}
+          initialMd={point.md}
+        />
+      </div>
+    </main>
+  );
+}

src/app/parent/math/actions.ts

@@ -0,0 +1,34 @@
+"use server";
+
+import { revalidatePath } from "next/cache";
+import { eq } from "drizzle-orm";
+import { db } from "@/db";
+import { mathPoints } from "@/db/schema";
+import { getSessionUser } from "@/lib/auth";
+
+// xuchao: 家长编辑数学知识点(标题/摘要/课文 markdown)
+export async function updateMathPoint(
+  pointId: string,
+  data: { title: string; summary: string; md: string },
+): Promise<{ ok?: true; error?: string }> {
+  const parent = await getSessionUser();
+  if (!parent || parent.role !== "parent") return { error: "请先以家长身份登录" };
+  if (!data.title.trim()) return { error: "标题不能为空" };
+  if (!data.md.trim()) return { error: "课文内容不能为空" };
+
+  await db
+    .update(mathPoints)
+    .set({
+      title: data.title.trim(),
+      summary: data.summary,
+      md: data.md,
+      updatedAt: new Date(),
+    })
+    .where(eq(mathPoints.pointId, pointId));
+
+  revalidatePath("/math");
+  revalidatePath(`/math/${pointId}`);
+  revalidatePath("/parent/math");
+  revalidatePath(`/parent/math/${pointId}`);
+  return { ok: true };
+}

src/app/parent/math/editor-form.tsx

@@ -0,0 +1,92 @@
+"use client";
+
+import { useState, useTransition } from "react";
+import { Eye, EyeOff, Save } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Md } from "@/app/learn/md";
+import { extractQuiz } from "@/lib/quiz-parse";
+import { updateMathPoint } from "./actions";
+
+// xuchao: 数学课程编辑器——结构同语法编辑器:改标题/摘要/课文 markdown,可预览,保存即生效
+export function EditorForm({
+  pointId,
+  initialTitle,
+  initialSummary,
+  initialMd,
+}: {
+  pointId: string;
+  initialTitle: string;
+  initialSummary: string | null;
+  initialMd: string;
+}) {
+  const [title, setTitle] = useState(initialTitle);
+  const [summary, setSummary] = useState(initialSummary ?? "");
+  const [md, setMd] = useState(initialMd);
+  const [preview, setPreview] = useState(false);
+  const [msg, setMsg] = useState<{ ok?: boolean; text: string } | null>(null);
+  const [pending, startTransition] = useTransition();
+
+  const quizCount = extractQuiz(md).length;
+
+  const save = () => {
+    setMsg(null);
+    startTransition(async () => {
+      const r = await updateMathPoint(pointId, { title, summary, md });
+      if (r.error) setMsg({ text: r.error });
+      else setMsg({ ok: true, text: "已保存,孩子端立即生效" });
+    });
+  };
+
+  return (
+    <div className="space-y-4">
+      <div className="grid gap-3 sm:grid-cols-2">
+        <div className="space-y-1">
+          <Label>标题</Label>
+          <Input value={title} onChange={(e) => setTitle(e.target.value)} />
+        </div>
+        <div className="space-y-1">
+          <Label>学习目标(一句话)</Label>
+          <Input value={summary} onChange={(e) => setSummary(e.target.value)} />
+        </div>
+      </div>
+
+      <div className="space-y-1">
+        <div className="flex items-center justify-between">
+          <Label>课文内容(Markdown,含 ```quiz 练习块)</Label>
+          <div className="flex items-center gap-2 text-xs text-muted-foreground">
+            <span>检测到练习题 {quizCount} 道</span>
+            <Button variant="outline" size="sm" type="button" onClick={() => setPreview((p) => !p)}>
+              {preview ? <EyeOff className="size-4" /> : <Eye className="size-4" />}
+              {preview ? "编辑" : "预览"}
+            </Button>
+          </div>
+        </div>
+        {preview ? (
+          <div className="max-h-[480px] overflow-y-auto rounded-xl border border-slate-100 bg-white p-4">
+            <Md text={md} />
+          </div>
+        ) : (
+          <textarea
+            value={md}
+            onChange={(e) => setMd(e.target.value)}
+            rows={18}
+            className="w-full rounded-lg border border-slate-200 bg-white p-3 font-mono text-xs leading-relaxed focus:border-indigo-500 focus:ring-2 focus:ring-indigo-200"
+          />
+        )}
+      </div>
+
+      <div className="flex items-center gap-3">
+        <Button size="lg" disabled={pending} onClick={save}>
+          <Save className="size-4" /> 保存
+        </Button>
+        {msg && (
+          <p className={msg.ok ? "text-sm font-medium text-emerald-600" : "text-sm font-medium text-destructive"}>
+            {msg.text}
+          </p>
+        )}
+      </div>
+    </div>
+  );
+}

src/app/parent/math/page.tsx

@@ -0,0 +1,55 @@
+import Link from "next/link";
+import { Pencil } from "lucide-react";
+import { redirect } from "next/navigation";
+import { BackgroundBlobs } from "@/components/background-blobs";
+import { getSessionUser } from "@/lib/auth";
+import { listMathPoints, MODULES } from "@/lib/math";
+
+// xuchao: 数学思维课程编辑列表——按七大模块分组,点击进入单课编辑
+export default async function MathAdmin() {
+  const parent = await getSessionUser();
+  if (!parent) redirect("/login");
+  if (parent.role !== "parent") redirect("/kid");
+
+  const points = await listMathPoints();
+
+  return (
+    <main className="relative mx-auto max-w-2xl space-y-5 p-4 pb-10">
+      <BackgroundBlobs />
+      <header className="flex items-center justify-between">
+        <Link href="/parent" className="text-sm font-medium text-indigo-600">
+          ← 返回家长中心
+        </Link>
+        <h1 className="text-xl font-extrabold text-slate-900">数学思维课程编辑</h1>
+      </header>
+      <p className="rounded-lg border-l-4 border-indigo-400 bg-indigo-50 px-3 py-2 text-sm text-indigo-800">
+        点击任意课程即可修改标题、目标与课文内容,保存后孩子端立即生效。
+      </p>
+
+      {MODULES.map((mod) => {
+        const group = points.filter((p) => p.module === mod.id);
+        if (group.length === 0) return null;
+        return (
+          <section key={mod.id} className="rounded-xl border border-slate-100 bg-white p-4 shadow-soft">
+            <h2 className="mb-3 text-lg font-extrabold text-slate-900">
+              {mod.name}
+              <span className="ml-1 text-amber-500">{"★".repeat(mod.stars)}</span>
+            </h2>
+            <div className="grid grid-cols-1 gap-2 sm:grid-cols-2">
+              {group.map((p) => (
+                <Link
+                  key={p.pointId}
+                  href={`/parent/math/${p.pointId}`}
+                  className="flex items-center gap-2 rounded-lg border border-slate-200 bg-white px-3 py-2 text-sm text-slate-700 transition-all duration-200 hover:-translate-y-0.5 hover:border-indigo-300"
+                >
+                  <Pencil className="size-3.5 shrink-0 text-indigo-400" />
+                  <span className="truncate">{p.title}</span>
+                </Link>
+              ))}
+            </div>
+          </section>
+        );
+      })}
+    </main>
+  );
+}

src/app/parent/words/[day]/page.tsx

@@ -0,0 +1,33 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { BackgroundBlobs } from "@/components/background-blobs";
+import { getSessionUser } from "@/lib/auth";
+import { wordsByDay } from "@/lib/words";
+import { DayForm } from "../day-form";
+
+// xuchao: 某一天的单词编辑页
+export default async function WordsDayAdmin({ params }: { params: Promise<{ day: string }> }) {
+  const parent = await getSessionUser();
+  if (!parent) redirect("/login");
+  if (parent.role !== "parent") redirect("/kid");
+
+  const day = Number((await params).day);
+  if (!Number.isInteger(day) || day < 1) redirect("/parent/words");
+  const words = await wordsByDay(day);
+
+  return (
+    <main className="relative mx-auto max-w-2xl space-y-5 p-4 pb-10">
+      <BackgroundBlobs />
+      <header className="flex items-center justify-between">
+        <Link href="/parent/words" className="text-sm font-medium text-indigo-600">
+          ← 天数列表
+        </Link>
+        <h1 className="text-xl font-extrabold text-slate-900">第 {day} 天单词</h1>
+      </header>
+
+      <div className="rounded-2xl border border-slate-100 bg-white p-5 shadow-soft">
+        <DayForm day={day} initial={words.map((w) => ({ word: w.word, meaning: w.meaning }))} />
+      </div>
+    </main>
+  );
+}

src/app/parent/words/actions.ts

@@ -0,0 +1,53 @@
+"use server";
+
+import { revalidatePath } from "next/cache";
+import { eq, sql } from "drizzle-orm";
+import raw from "@/content/words/words.json";
+import { db } from "@/db";
+import { wordEntry } from "@/db/schema";
+import { getSessionUser } from "@/lib/auth";
+
+// xuchao: 整日保存单词——事务内删旧插新;保留词沿用原 seq,新词接续全库最大 seq
+export async function saveDayWords(
+  day: number,
+  words: { word: string; meaning: string }[],
+): Promise<{ ok?: true; error?: string }> {
+  const parent = await getSessionUser();
+  if (!parent || parent.role !== "parent") return { error: "请先以家长身份登录" };
+  if (!Number.isInteger(day) || day < 1) return { error: "天数无效" };
+  const cleaned = words
+    .map((w) => ({ word: w.word.trim(), meaning: w.meaning.trim() }))
+    .filter((w) => w.word);
+  if (cleaned.length === 0) return { error: "至少保留一个单词" };
+  if (new Set(cleaned.map((w) => w.word.toLowerCase())).size !== cleaned.length)
+    return { error: "同一天内单词不能重复" };
+
+  await db.transaction(async (tx) => {
+    // 首次编辑(表还没灌种子):先全量灌入打包词库,否则只存一天会丢失其余天
+    const [cnt] = await tx.select({ n: sql<number>`COUNT(*)` }).from(wordEntry);
+    if (cnt.n === 0) {
+      const rows = raw as { word: string; meaning: string; day: number; seq: number }[];
+      for (let i = 0; i < rows.length; i += 500) await tx.insert(wordEntry).values(rows.slice(i, i + 500));
+    }
+
+    const oldRows = await tx.select().from(wordEntry).where(eq(wordEntry.day, day));
+    const seqByWord = new Map(oldRows.map((r) => [r.word, r.seq]));
+    await tx.delete(wordEntry).where(eq(wordEntry.day, day));
+    const [mx] = await tx.select({ m: sql<number>`COALESCE(MAX(seq),0)` }).from(wordEntry);
+    let seq = mx.m;
+
+    await tx.insert(wordEntry).values(
+      cleaned.map((w) => ({
+        word: w.word,
+        meaning: w.meaning,
+        day,
+        seq: seqByWord.get(w.word) ?? ++seq,
+      })),
+    );
+  });
+
+  revalidatePath("/words");
+  revalidatePath(`/words/${day}`);
+  revalidatePath("/parent/words");
+  return { ok: true };
+}

src/app/parent/words/day-form.tsx

@@ -0,0 +1,84 @@
+"use client";
+
+import { useState, useTransition } from "react";
+import { Plus, Save, X } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { saveDayWords } from "./actions";
+
+// xuchao: 按天编辑单词——逐词行编辑,可增删行,整日保存
+export function DayForm({
+  day,
+  initial,
+}: {
+  day: number;
+  initial: { word: string; meaning: string }[];
+}) {
+  const [rows, setRows] = useState(initial);
+  const [msg, setMsg] = useState<{ ok?: boolean; text: string } | null>(null);
+  const [pending, startTransition] = useTransition();
+
+  const set = (i: number, key: "word" | "meaning", v: string) => {
+    setRows((rs) => rs.map((r, j) => (j === i ? { ...r, [key]: v } : r)));
+    setMsg(null);
+  };
+
+  const save = () => {
+    setMsg(null);
+    startTransition(async () => {
+      const r = await saveDayWords(day, rows);
+      if (r.error) setMsg({ text: r.error });
+      else setMsg({ ok: true, text: "已保存,孩子端立即生效" });
+    });
+  };
+
+  return (
+    <div className="space-y-4">
+      <div className="space-y-2">
+        {rows.map((r, i) => (
+          <div key={i} className="flex items-center gap-2">
+            <Input
+              value={r.word}
+              onChange={(e) => set(i, "word", e.target.value)}
+              placeholder="单词"
+              className="w-36 shrink-0 font-medium"
+            />
+            <Input value={r.meaning} onChange={(e) => set(i, "meaning", e.target.value)} placeholder="中文释义" />
+            <button
+              type="button"
+              aria-label="删除该词"
+              onClick={() => {
+                setRows((rs) => rs.filter((_, j) => j !== i));
+                setMsg(null);
+              }}
+              className="shrink-0 rounded-md p-1.5 text-slate-400 transition-colors hover:bg-red-50 hover:text-red-500"
+            >
+              <X className="size-4" />
+            </button>
+          </div>
+        ))}
+      </div>
+
+      <div className="flex flex-wrap items-center gap-3">
+        <Button
+          variant="outline"
+          type="button"
+          onClick={() => {
+            setRows((rs) => [...rs, { word: "", meaning: "" }]);
+            setMsg(null);
+          }}
+        >
+          <Plus className="size-4" /> 添加单词
+        </Button>
+        <Button size="lg" disabled={pending} onClick={save}>
+          <Save className="size-4" /> 保存第 {day} 天
+        </Button>
+        {msg && (
+          <p className={msg.ok ? "text-sm font-medium text-emerald-600" : "text-sm font-medium text-destructive"}>
+            {msg.text}
+          </p>
+        )}
+      </div>
+    </div>
+  );
+}

src/app/parent/words/page.tsx

@@ -0,0 +1,47 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { BackgroundBlobs } from "@/components/background-blobs";
+import { getSessionUser } from "@/lib/auth";
+import { allWords } from "@/lib/words";
+
+// xuchao: 单词词库编辑列表——按天网格,格内显示当天词数,点击进入当天编辑
+export default async function WordsAdmin() {
+  const parent = await getSessionUser();
+  if (!parent) redirect("/login");
+  if (parent.role !== "parent") redirect("/kid");
+
+  const ws = await allWords();
+  const counts = new Map<number, number>();
+  let totalDays = 0;
+  for (const w of ws) {
+    counts.set(w.day, (counts.get(w.day) ?? 0) + 1);
+    totalDays = Math.max(totalDays, w.day);
+  }
+
+  return (
+    <main className="relative mx-auto max-w-2xl space-y-5 p-4 pb-10">
+      <BackgroundBlobs />
+      <header className="flex items-center justify-between">
+        <Link href="/parent" className="text-sm font-medium text-indigo-600">
+          ← 返回家长中心
+        </Link>
+        <h1 className="text-xl font-extrabold text-slate-900">英语单词编辑</h1>
+      </header>
+      <p className="rounded-lg border-l-4 border-indigo-400 bg-indigo-50 px-3 py-2 text-sm text-indigo-800">
+        共 {ws.length} 词 / {totalDays} 天。点击某一天可增删改当天单词,保存后孩子端立即生效。
+      </p>
+      <div className="grid grid-cols-4 gap-1.5 sm:grid-cols-7">
+        {Array.from({ length: totalDays }, (_, i) => i + 1).map((d) => (
+          <Link
+            key={d}
+            href={`/parent/words/${d}`}
+            className="flex flex-col items-center justify-center rounded-lg border border-slate-200 bg-white py-2 text-sm transition-all duration-200 hover:-translate-y-0.5 hover:border-indigo-300"
+          >
+            <span className="font-bold text-slate-800">第{d}天</span>
+            <span className="text-xs text-muted-foreground">{counts.get(d) ?? 0} 词</span>
+          </Link>
+        ))}
+      </div>
+    </main>
+  );
+}

src/app/words/[day]/page.tsx

@@ -12,7 +12,7 @@ export default async function WordDayPage({ params }: { params: Promise<{ day: s
   if (user.role !== "child") redirect("/parent");
 
   const day = Number((await params).day);
-  const words = wordsByDay(day);
+  const words = await wordsByDay(day);
   if (words.length === 0) redirect("/words");
 
   const [prog] = await db
@@ -22,18 +22,20 @@ export default async function WordDayPage({ params }: { params: Promise<{ day: s
     .limit(1);
   const learned: string[] = prog?.learned ? JSON.parse(prog.learned) : [];
 
-  const items = words.map((w) => ({
-    word: w.word,
-    meaning: w.meaning,
-    similar: similarWords(w.word, 3).map((s) => ({ word: s.word, meaning: s.meaning })),
-  }));
+  const items = await Promise.all(
+    words.map(async (w) => ({
+      word: w.word,
+      meaning: w.meaning,
+      similar: (await similarWords(w.word, 3)).map((s) => ({ word: s.word, meaning: s.meaning })),
+    })),
+  );
 
   return (
     <WordDayClient
       day={day}
       items={items}
       learned={learned}
-      test={buildWordTest(day)}
+      test={await buildWordTest(day)}
       passed={prog?.passed ?? false}
       score={prog?.score ?? null}
     />

src/app/words/actions.ts

@@ -46,7 +46,7 @@ export async function submitWordTest(
 ): Promise<{ score: number; passed: boolean; correct: number; total: number; detail: boolean[] } | { error: string }> {
   const u = await child();
   if (!u) return { error: "会话无效" };
-  const qs = buildWordTest(day);
+  const qs = await buildWordTest(day);
   if (qs.length === 0) return { error: "当天暂无单词" };
   let correct = 0;
   const detail = qs.map((q, i) => {

src/app/words/page.tsx

@@ -5,7 +5,7 @@ import { BackgroundBlobs } from "@/components/background-blobs";
 import { db } from "@/db";
 import { wordProgress } from "@/db/schema";
 import { getSessionUser } from "@/lib/auth";
-import { TOTAL_WORD_DAYS } from "@/lib/words";
+import { totalWordDays } from "@/lib/words";
 import { cn } from "@/lib/utils";
 
 export default async function WordsHome() {
@@ -18,6 +18,7 @@ export default async function WordsHome() {
     .from(wordProgress)
     .where(and(eq(wordProgress.childUserId, user.id), eq(wordProgress.passed, true)));
   const passedSet = new Set(passed.map((p) => p.day));
+  const TOTAL_WORD_DAYS = await totalWordDays();
 
   return (
     <main className="relative mx-auto min-h-dvh max-w-2xl space-y-5 p-4 pb-10">

src/db/schema.ts

@@ -181,6 +181,19 @@ export const wrongBook = mysqlTable(
   (t) => [index("idx_wrong_child").on(t.childUserId, t.mastered)],
 );
 
+// ===== 单词词库(内容存库,家长端可按天编辑;初始由 words.json 灌入)=====
+export const wordEntry = mysqlTable(
+  "word_entry",
+  {
+    id: bigint("id", { mode: "number" }).primaryKey().autoincrement(),
+    word: varchar("word", { length: 60 }).notNull(),
+    meaning: varchar("meaning", { length: 300 }).notNull().default(""),
+    day: int("day").notNull(), // 第几天学习
+    seq: int("seq").notNull(), // 全局顺序(组卷干扰项取材用)
+  },
+  (t) => [index("idx_word_entry_day").on(t.day)],
+);
+
 // ===== 单词每日进度(学会的词+检测成绩)=====
 export const wordProgress = mysqlTable(
   "word_progress",

src/lib/words.ts

@@ -1,13 +1,27 @@
+import { asc, sql } from "drizzle-orm";
 import raw from "@/content/words/words.json";
+import { db } from "@/db";
+import { wordEntry } from "@/db/schema";
 
 export type Word = { word: string; meaning: string; day: number; seq: number };
 
-export const WORDS = raw as Word[];
-export const TOTAL_WORD_DAYS = WORDS.reduce((m, w) => Math.max(m, w.day), 0);
+// xuchao: 词库以 word_entry 表为准(家长端可编辑);表空回退打包的 words.json,
+// 保证未灌种子数据的部署孩子端照常可用
+export async function allWords(): Promise<Word[]> {
+  const rows = await db.select().from(wordEntry).orderBy(asc(wordEntry.seq));
+  if (rows.length > 0) return rows.map((r) => ({ word: r.word, meaning: r.meaning, day: r.day, seq: r.seq }));
+  return raw as Word[];
+}
+
+export async function totalWordDays(): Promise<number> {
+  const ws = await allWords();
+  return ws.reduce((m, w) => Math.max(m, w.day), 0);
+}
 
 // 某一天的单词
-export function wordsByDay(day: number): Word[] {
-  return WORDS.filter((w) => w.day === day);
+export async function wordsByDay(day: number): Promise<Word[]> {
+  const ws = await allWords();
+  return ws.filter((w) => w.day === day);
 }
 
 // 标准发音(有道公共语音,美式 type=2 / 英式 type=1)
@@ -21,21 +35,22 @@ function lev(a: string, b: string): number {
     n = b.length;
   if (Math.abs(m - n) > 2) return 99;
   const dp = Array.from({ length: m + 1 }, (_, i) => [i, ...Array(n).fill(0)]);
-  for (let j = 0; j <= n; j++) dp[0][j] = j;
   for (let i = 1; i <= m; i++)
     for (let j = 1; j <= n; j++)
       dp[i][j] = Math.min(dp[i - 1][j] + 1, dp[i][j - 1] + 1, dp[i - 1][j - 1] + (a[i - 1] === b[j - 1] ? 0 : 1));
   return dp[m][n];
 }
 
-// 每日检测组卷(确定性):选最多 10 词,选中文释义,干扰项用相邻词的释义
+// 每日检测组卷(确定性):选最多 10 词,选中文释义,干扰项按全库位置偏移取释义
 export type WordTestQ = { word: string; options: string[]; answer: number };
-export function buildWordTest(day: number): WordTestQ[] {
-  const ws = wordsByDay(day);
-  const pick = ws.slice(0, 10);
+export async function buildWordTest(day: number): Promise<WordTestQ[]> {
+  const ws = await allWords();
+  const dayWords = ws.filter((w) => w.day === day);
+  const pick = dayWords.slice(0, 10);
   return pick.map((w) => {
+    const idx = ws.indexOf(w);
     const distractors = [1, 2, 3]
-      .map((off) => WORDS[(w.seq - 1 + off * 37) % WORDS.length].meaning)
+      .map((off) => ws[(idx + off * 37) % ws.length].meaning)
       .filter((m) => m && m !== w.meaning)
       .slice(0, 3);
     const options = [w.meaning || w.word, ...distractors];
@@ -46,10 +61,18 @@ export function buildWordTest(day: number): WordTestQ[] {
   });
 }
 
-export function similarWords(word: string, n = 3): Word[] {
-  return WORDS.filter((w) => w.word !== word)
+export async function similarWords(word: string, n = 3): Promise<Word[]> {
+  const ws = await allWords();
+  return ws
+    .filter((w) => w.word !== word)
     .map((w) => ({ w, d: lev(word, w.word) }))
     .sort((a, b) => a.d - b.d)
     .slice(0, n)
     .map((x) => x.w);
 }
+
+// 词库总数(家长端展示用)
+export async function countWordEntries(): Promise<number> {
+  const [r] = await db.select({ n: sql<number>`COUNT(*)` }).from(wordEntry);
+  return r.n;
+}