现有 38 个成就全是累计量（通过几题、提交几次、连续几天），起步的人人都有、往上的够不着， 而且没有一个在说「你学会了什么」。连续打卡在这里结构上做不到：2025 秋学生最长连续交题 天数的中位数是 1 天，连续 7 天的只有 3 人。 - GET /me/knowledge：题数 ≥10 的知识点标签（10 个），每个给做对几道、档位、周一时的档位、 下一档门槛；四档 入门 1 / 会了 3 / 熟练 题数 40%（≤10）/ 精通 75%（≤20）。 回测 2025 秋：中位数学生一学期升 5 档；「入门」一档是给只做对一两道的 71 人加的 - 同班 ≥30% 点亮过的知识点才会出现在「还没碰过」里，免得 Python 班看到「C 语言」 - 个人主页加「我的知识点」，只在看自己时显示；首页一句话：本周升级 > 离下一档最近的 > 去点亮一个班里在学的，点了去按知识点筛的题目列表 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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<script setup lang="ts">
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import { getKnowledgeMap } from "oj/api"
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import { levelName, MAX_LEVEL, remainingToNext, tagLink } from "oj/user/knowledge"
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import type { KnowledgeLevel, KnowledgeMap } from "utils/types"
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/**
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* 个人主页上的知识点地图：「我学会了什么」，只和自己比。
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*
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* 只在看**自己的**主页时挂（index.vue 判断），不开放给别人看 —— 开放了它就成了
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* 另一张排行榜，基础弱的学生最不想被看到的就是这个。
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*/
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const map = ref<KnowledgeMap | null>(null)
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onMounted(async () => {
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map.value = await getKnowledgeMap().catch(() => null)
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})
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const learned = computed(() =>
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(map.value?.tags ?? [])
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.filter((tag) => tag.level >= 1)
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.sort((a, b) => b.level - a.level || b.solved - a.solved),
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)
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/** 班里同学在学、自己还没碰过的。别的（比如 Python 班的「C 语言」）不列 */
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const untouched = computed(() => {
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const touched = new Set(map.value?.classTouched ?? [])
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return (map.value?.tags ?? []).filter((tag) => tag.level === 0 && touched.has(tag.name))
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})
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function progress(tag: KnowledgeLevel) {
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if (tag.nextAt === null) return 100
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return Math.min(100, Math.round((tag.solved / tag.nextAt) * 100))
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}
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function hint(tag: KnowledgeLevel) {
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const left = remainingToNext(tag)
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if (left === null) return `做对了 ${tag.solved} 道，已经精通了`
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return `做对 ${tag.solved} 道 · 再做 ${left} 道到「${levelName(tag.level + 1)}」`
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}
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</script>
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<template>
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<n-card v-if="map && (learned.length || untouched.length)" class="knowledge" title="我的知识点">
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<template #header-extra>
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<n-text depth="3" class="meta">入门 → 会了 → 熟练 → 精通</n-text>
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</template>
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<n-flex vertical :size="14">
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<router-link v-for="tag in learned" :key="tag.name" :to="tagLink(tag.name)" class="row">
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<div class="head">
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<span class="name">{{ tag.name }}</span>
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<span class="dots" :title="levelName(tag.level)">
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<span v-for="i in MAX_LEVEL" :key="i" class="dot" :class="{ on: i <= tag.level }" />
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</span>
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<span class="level">{{ levelName(tag.level) }}</span>
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<n-tag
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v-if="tag.level > tag.levelAtWeekStart"
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size="small"
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type="success"
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:bordered="false"
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>
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本周升级
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</n-tag>
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</div>
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<n-progress
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type="line"
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:percentage="progress(tag)"
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:show-indicator="false"
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:height="6"
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status="success"
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/>
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<n-text depth="3" class="meta">{{ hint(tag) }}</n-text>
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</router-link>
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<div v-if="untouched.length">
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<n-text depth="3" class="meta">班里同学在学、你还没碰过：</n-text>
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<n-flex :size="8" style="margin-top: 6px">
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<router-link v-for="tag in untouched" :key="tag.name" :to="tagLink(tag.name)">
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<n-tag size="small">{{ tag.name }}</n-tag>
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</router-link>
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</n-flex>
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</div>
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</n-flex>
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</n-card>
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</template>
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<style scoped>
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.knowledge {
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max-width: 610px;
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margin: 16px auto 0;
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}
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.row {
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display: flex;
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flex-direction: column;
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gap: 4px;
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color: inherit;
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text-decoration: none;
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}
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.head {
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display: flex;
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align-items: center;
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gap: 8px;
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}
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.name {
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font-weight: 500;
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min-width: 5em;
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}
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.dots {
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display: inline-flex;
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gap: 3px;
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}
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.dot {
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width: 8px;
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height: 8px;
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border-radius: 50%;
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background-color: rgba(128, 128, 128, 0.25);
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}
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.dot.on {
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background-color: #18a058;
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}
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.level {
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font-size: 13px;
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color: #18a058;
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}
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.meta {
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font-size: 12px;
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}
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</style>
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@@ -1,4 +1,5 @@
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<script setup lang="ts">
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import KnowledgeMap from "./components/KnowledgeMap.vue"
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import { Icon } from "@iconify/vue"
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import { getProfile } from "shared/api"
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import { durationToDays, parseTime } from "utils/functions"
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@@ -11,6 +12,15 @@ import { useUserStore } from "shared/store/user"
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const route = useRoute()
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const router = useRouter()
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const userStore = useUserStore()
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/**
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* 在看自己的主页。知识点地图只在这时候挂：它不给别人看（见 KnowledgeMap.vue），
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* 后端 /me/knowledge 也只认当前登录的人。带 ?name= 看的是别人，除非名字就是自己。
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*/
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const isSelf = computed(() => {
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const name = route.query.name as string | undefined
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return !name || name === userStore.user?.username
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})
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const profile = ref<Profile | null>(null)
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const problems = ref<string[]>([])
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const firstSubmissionAt = ref("")
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@@ -219,6 +229,7 @@ onMounted(() => {
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</n-flex>
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</n-card>
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<KnowledgeMap v-if="!loading && profile && isSelf" />
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<n-descriptions v-if="!loading && profile" class="wrapper" bordered>
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<n-descriptions-item v-if="!!problems.length">
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<template #label>
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@@ -0,0 +1,72 @@
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import type { KnowledgeLevel, KnowledgeMap } from "utils/types"
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/**
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* 知识点地图的档位名（后端 routes/account.ts 的 levelThresholds 定门槛）。
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* 用「会了」「熟练」这种学生听得懂的词，不用「Lv.3」—— 这张图要说的是「我会了什么」，
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* 不是又一套积分。
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*/
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export const LEVEL_NAMES = ["没碰过", "入门", "会了", "熟练", "精通"] as const
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export const MAX_LEVEL = LEVEL_NAMES.length - 1
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export function levelName(level: number) {
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return LEVEL_NAMES[Math.max(0, Math.min(MAX_LEVEL, level))]!
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}
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/** 离下一档还差几道；已经最高档为 null */
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export function remainingToNext(tag: KnowledgeLevel) {
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return tag.nextAt === null ? null : Math.max(1, tag.nextAt - tag.solved)
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}
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export function tagLink(name: string) {
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return { path: "/problem", query: { tag: name } }
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}
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export interface Headline {
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text: string
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/** 点了去哪：按这个知识点筛的题目列表 */
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to?: ReturnType<typeof tagLink>
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}
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/**
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* 首页「你好」下面那一行：一次只说一件事，挑最能让人想再做一道的那件。
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*
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* 1. 本周升级了 —— 刚发生的进步，最值得说
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* 2. 正在学的里面，离下一档最近的那个（班里在学的优先）—— 给一个很近的目标
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* 3. 一个都没点亮：挑一个班里同学在学的，让他去点亮
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*/
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export function pickHeadline(map: KnowledgeMap): Headline | null {
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const upgraded = map.tags
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.filter((tag) => tag.level > tag.levelAtWeekStart)
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.sort((a, b) => b.level - a.level)
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if (upgraded.length === 1) {
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const tag = upgraded[0]!
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return { text: `本周升级：${tag.name} → ${levelName(tag.level)}`, to: tagLink(tag.name) }
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}
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if (upgraded.length > 1) {
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const list = upgraded.map((tag) => `${tag.name}「${levelName(tag.level)}」`).join("、")
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return { text: `本周升级了 ${upgraded.length} 个知识点：${list}` }
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}
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const touched = new Set(map.classTouched)
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const learning = map.tags
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.filter((tag) => tag.level >= 1 && tag.level < MAX_LEVEL)
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.sort(
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(a, b) =>
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Number(touched.has(b.name)) - Number(touched.has(a.name)) ||
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remainingToNext(a)! - remainingToNext(b)!,
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)
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const next = learning[0]
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if (next) {
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return {
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text: `正在学${next.name}，再做 ${remainingToNext(next)} 道就到「${levelName(next.level + 1)}」`,
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to: tagLink(next.name),
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}
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}
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const fresh = map.tags.find((tag) => tag.level === 0 && touched.has(tag.name))
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if (fresh) {
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return { text: `班里同学在学${fresh.name}，去做一道点亮它`, to: tagLink(fresh.name) }
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}
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return null
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}
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