hjc-web/app/templates/template-07/pages/CaseList.vue

<template>
  <div class="min-h-screen py-16 bg-gray-50">
    <div class="container mx-auto px-4 sm:px-6 lg:px-8">
      <div class="text-center mb-12">
        <h1 class="text-3xl font-bold text-gray-900 mb-4">{{ pageTitle }}</h1>
        <p class="text-gray-600 max-w-2xl mx-auto">展示我们的成功案例与行业经验</p>
      </div>

      <div v-if="pending" class="flex justify-center py-12">
        <SiteLoading />
      </div>
      <SiteError v-else-if="error" message="获取案例列表失败" />

      <div v-else-if="cases.length > 0" class="max-w-[1200px] mx-auto bg-white rounded-xl shadow-sm px-6 py-2">
        <ul class="divide-y divide-gray-100">
          <li v-for="item in cases" :key="item.id">
            <NuxtLink :to="`/case/${item.id}`" class="block py-4 group">
              <div class="flex items-baseline gap-4">
                <span class="shrink-0 text-xs text-gray-400 tabular-nums">
                  {{ formatDate(item.publishTime) }}
                </span>
                <h2 class="flex-1 min-w-0 text-base text-gray-900 truncate group-hover:text-blue-600 transition-colors">
                  {{ item.title }}
                </h2>
              </div>
              <div class="mt-1 pl-[5.5rem]">
                <p v-if="stripHtml(item.summary)" class="text-sm text-gray-500 line-clamp-1">
                  {{ stripHtml(item.summary) }}
                </p>
                <div v-if="item.clientName" class="mt-1 text-xs text-gray-400">
                  客户：{{ item.clientName }}
                </div>
              </div>
            </NuxtLink>
          </li>
        </ul>
      </div>

      <!-- 空状态 -->
      <div v-else class="text-center py-20">
        <p class="text-gray-500">暂无案例内容</p>
      </div>

      <!-- 分页 -->
      <div v-if="totalPages > 1" class="flex justify-center mt-12">
        <nav class="flex items-center gap-2">
          <button
            v-for="p in totalPages"
            :key="p"
            class="px-4 py-2 text-sm rounded-lg transition-colors"
            :class="p === currentPage ? 'bg-blue-600 text-white' : 'bg-white text-gray-700 hover:bg-blue-50'"
            @click="currentPage = p"
          >
            {{ p }}
          </button>
        </nav>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import dayjs from 'dayjs'
import type { CaseItem, PageResult } from '~/types'
import { collectDescendantNavIds } from '~/utils/nav-tree'

/**
 * 模板 1 - 案例列表页
 */
const route = useRoute()
const { allNavigations, fetchSiteInfo } = useSite()

// 确保导航数据已加载（用于栏目标题与分类判定）
await fetchSiteInfo()

// 列表（栏目）入口 /case/{navigationId} 时按分类过滤；/case 根目录展示全部案例
const navigationId = computed<number | undefined>(() => {
  const id = route.params.id
  return id ? Number(id) : undefined
})

// 聚合：父栏目访问时递归收集自身 + 所有后代栏目 navigationId，交给后端 IN 查询
const categoryIds = computed<string | undefined>(() => {
  const ids = collectDescendantNavIds(navigationId.value, allNavigations.value || [])
  return ids.length ? ids.join(',') : undefined
})

const currentPage = ref(1)
const limit = 12

const { data, pending, error } = await useFetch<PageResult<CaseItem>>('/api/case/list', {
  key: `case-list-${categoryIds.value ?? navigationId.value ?? 'all'}-p${currentPage.value}`,
  query: {
    page: currentPage,
    limit,
    ...(categoryIds.value
      ? { categoryIds: categoryIds.value }
      : (navigationId.value ? { navigationId: navigationId.value } : {}))
  },
  watch: [currentPage, categoryIds, navigationId]
})

const cases = computed(() => data.value?.list || [])

const totalCount = computed(() => data.value?.count ?? 0)
const totalPages = computed(() => Math.max(1, Math.ceil(totalCount.value / limit)))

// 切换栏目时回到第 1 页
watch([categoryIds, navigationId], () => {
  currentPage.value = 1
})

// 栏目标题：命中导航取导航标题，否则用模块默认名
const pageTitle = computed(() => {
  const id = navigationId.value
  if (id == null) return '案例展示'
  const navs = (allNavigations.value || []) as any[]
  const find = (items: any[]): any => {
    for (const it of items) {
      if (it.navigationId === id) return it
      if (it.children?.length) {
        const f = find(it.children)
        if (f) return f
      }
    }
    return undefined
  }
  return find(navs)?.title || '案例展示'
})

function formatDate(date?: string) {
  if (!date) return ''
  return dayjs(date).format('YYYY-MM-DD')
}
</script>