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import { computed, onMounted, ref, watch } from "vue";
import {
RouterLink,
useRoute,
useRouter,
type RouteLocationRaw,
} from "vue-router";
import type {
ProductSearchPage,
ProductSummary,
} from "@plain-journal/foundation";
import {
PjButton,
PjField,
PjPageContainer,
PjStatusNotice,
} from "@plain-journal/ui";
import {
catalogApi,
CatalogAsyncState,
CatalogPagination,
ProductGrid,
} from "../../entities/catalog";
import {
pageCount,
pageFromQuery,
queryWithPage,
} from "../../shared/lib";
const PAGE_SIZE = 12;
const route = useRoute();
const router = useRouter();
const input = ref("");
const products = ref<ProductSummary[]>([]);
const matchedTotal = ref(0);
const degraded = ref(false);
const source = ref<ProductSearchPage["source"] | null>(null);
const loading = ref(false);
const error = ref<string | null>(null);
let requestSequence = 0;
const query = computed(() => typeof route.query.q === "string" ? route.query.q.trim() : "");
const currentPage = computed(() => pageFromQuery(route.query.page));
const totalPages = computed(() => pageCount(matchedTotal.value, PAGE_SIZE));
function pageLocation(page: number): RouteLocationRaw {
return {
name: "search",
query: queryWithPage(route.query, page),
};
}
async function search() {
const requestId = ++requestSequence;
input.value = query.value;
if (!query.value) {
products.value = [];
matchedTotal.value = 0;
degraded.value = false;
source.value = null;
error.value = null;
loading.value = false;
return;
}
loading.value = true;
error.value = null;
products.value = [];
matchedTotal.value = 0;
degraded.value = false;
source.value = null;
try {
const result = await catalogApi.searchProducts({
q: query.value,
page: currentPage.value,
size: PAGE_SIZE,
});
Iif (requestId !== requestSequence) {
return;
}
products.value = result.items;
matchedTotal.value = result.matchedTotal;
degraded.value = result.degraded;
source.value = result.source;
} catch (cause) {
if (requestId !== requestSequence) {
return;
}
error.value = cause instanceof Error ? cause.message : "暂时无法完成查找。";
} finally {
Eif (requestId === requestSequence) {
loading.value = false;
}
}
}
function submit() {
const normalized = input.value.trim();
router.push({
name: "search",
query: normalized ? { q: normalized } : {},
});
}
onMounted(search);
watch(() => route.fullPath, search);
</script>
<template>
<PjPageContainer as="section" class="search-canvas">
<header class="search-intro">
<p>查找</p>
<h1>你正在寻找什么？</h1>
<p>用名称、用途或材料开始；查询会保存在地址中，刷新后仍可恢复。</p>
</header>
<form class="search-form" role="search" @submit.prevent="submit">
<PjField
v-slot="{ describedBy }"
label="商品名称或用途"
for-id="site-search"
hint="最多 80 个字符；提交新的关键词会回到第一页。"
>
<div class="search-form__control">
<input
id="site-search"
v-model="input"
type="search"
maxlength="80"
autocomplete="off"
placeholder="例如：通勤包、书写纸品"
:aria-describedby="describedBy"
/>
<PjButton type="submit" variant="secondary">
显示结果
</PjButton>
</div>
</PjField>
</form>
<div v-if="!query" class="search-suggestions">
<div>
<p>没有确定名称时</p>
<h2>从用途开始。</h2>
</div>
<div>
<RouterLink :to="{ name: 'search', query: { q: '通勤' } }">通勤随行</RouterLink>
<RouterLink :to="{ name: 'products', query: { category: 'writing' } }">
书写纸品
</RouterLink>
<RouterLink :to="{ name: 'products', query: { category: 'carry' } }">
随身用品
</RouterLink>
</div>
</div>
<section v-else class="search-results" aria-labelledby="search-results-title">
<div class="search-results__heading">
<div>
<p>查找结果</p>
<h2 id="search-results-title">“{{ query }}”</h2>
</div>
<p aria-live="polite">
<strong>{{ matchedTotal }}</strong>
<span>件匹配</span>
<span v-if="totalPages > 1">第 {{ currentPage }} / {{ totalPages }} 页</span>
</p>
</div>
<PjStatusNotice
v-if="degraded"
class="search-degraded"
tone="warning"
title="查找范围暂时收窄"
:data-search-source="source"
>
<p>搜索索引暂时不可用，当前结果来自商品事实库的基础匹配。</p>
<p>商品事实仍然有效，但排序与召回范围可能较窄。</p>
</PjStatusNotice>
<CatalogAsyncState
:loading="loading"
:error="error"
:empty="!loading && !error && products.length === 0"
empty-title="没有找到匹配商品。"
empty-message="尝试更短的关键词，或返回全部商品。"
@retry="search"
>
<ProductGrid :products="products" :heading-level="2" />
<CatalogPagination
:current-page="currentPage"
:total-pages="totalPages"
:to-page="pageLocation"
label="查找结果分页"
/>
</CatalogAsyncState>
</section>
</PjPageContainer>
</template>
<style scoped>
.search-canvas {
padding-block: var(--pj-space-7) var(--pj-space-8);
}
.search-intro {
max-width: 52rem;
padding-block: var(--pj-space-5) var(--pj-space-7);
}
.search-intro > p:first-child,
.search-suggestions > div:first-child > p,
.search-results__heading > div > p {
margin: 0 0 var(--pj-space-3);
color: var(--pj-text-secondary);
font-size: var(--pj-font-size-xs);
font-weight: 650;
letter-spacing: 0.12em;
text-transform: uppercase;
}
.search-intro h1 {
margin: 0;
max-width: 12ch;
font-size: clamp(2.6rem, 6vw, 6rem);
font-weight: 520;
letter-spacing: -0.055em;
line-height: 0.98;
}
.search-intro > p:last-child {
max-width: 38rem;
margin: var(--pj-space-5) 0 0;
color: var(--pj-text-secondary);
font-size: var(--pj-font-size-md);
}
.search-form {
margin-bottom: var(--pj-space-8);
}
.search-form__control {
display: grid;
grid-template-columns: 1fr auto;
align-items: center;
gap: var(--pj-space-4);
border-bottom: 1px solid var(--pj-border-strong);
}
.search-form__control input {
min-width: 0;
padding: var(--pj-space-4) 0;
border: 0;
background: transparent;
font-size: clamp(1.25rem, 2.5vw, 2rem);
}
.search-form__control input:focus {
outline: none;
}
.search-form__control:focus-within {
border-color: var(--pj-focus-ring);
box-shadow: 0 2px var(--pj-focus-ring);
}
.search-suggestions {
display: grid;
grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1.3fr);
gap: var(--pj-space-7);
padding-block: var(--pj-space-7);
border-top: 1px solid var(--pj-color-line);
}
.search-suggestions h2 {
margin: 0;
font-size: clamp(1.6rem, 3vw, 2.8rem);
font-weight: 520;
line-height: var(--pj-line-height-tight);
}
.search-suggestions > div:last-child {
display: grid;
align-content: start;
}
.search-suggestions a {
display: flex;
justify-content: space-between;
gap: var(--pj-space-4);
padding-block: var(--pj-space-4);
border-bottom: 1px solid var(--pj-border-subtle);
color: var(--pj-text-primary);
text-decoration: none;
}
.search-suggestions a::after {
content: "→";
}
.search-degraded {
margin-bottom: var(--pj-space-6);
}
.search-results__heading {
display: grid;
grid-template-columns: minmax(0, 1fr) auto;
align-items: end;
gap: var(--pj-space-6);
margin-bottom: var(--pj-space-6);
}
.search-results__heading h2 {
margin: 0;
font-size: clamp(2rem, 4vw, 4rem);
font-weight: 520;
letter-spacing: -0.045em;
line-height: 1;
}
.search-results__heading > p {
display: grid;
justify-items: end;
gap: var(--pj-space-1);
margin: 0;
color: var(--pj-text-secondary);
font-size: var(--pj-font-size-sm);
}
.search-results__heading > p strong {
color: var(--pj-text-primary);
font-size: var(--pj-font-size-xl);
font-weight: 520;
}
@media (max-width: 32rem) {
.search-form__control {
grid-template-columns: 1fr;
padding-bottom: var(--pj-space-3);
}
.search-form__control :deep(.pj-button) {
width: 100%;
}
.search-suggestions,
.search-results__heading {
grid-template-columns: 1fr;
}
.search-results__heading > p {
grid-template-columns: auto auto 1fr;
justify-items: start;
align-items: baseline;
}
}
</style>
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