feat: item detail and admin moderation UI

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/views/AdminView.vue

@@ -1,9 +1,309 @@
 <script setup lang="ts">
+import { computed, onMounted, ref } from 'vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+
+import {
+  adminCreateBan,
+  adminDeleteBan,
+  adminDeleteItem,
+  adminListBans,
+  adminListItems,
+  adminLogin,
+  type Ban,
+  type Item,
+} from '../api/client'
+
+const TOKEN_KEY = 'mincedpad_admin_token'
+
+const password = ref('')
+const token = ref('')
+const loggingIn = ref(false)
+const loading = ref(false)
+const items = ref<Item[]>([])
+const bans = ref<Ban[]>([])
+const banIp = ref('')
+const banReason = ref('')
+const banning = ref(false)
+
+const loggedIn = computed(() => Boolean(token.value))
+
+function persistToken(value: string) {
+  token.value = value
+  if (value) {
+    sessionStorage.setItem(TOKEN_KEY, value)
+  } else {
+    sessionStorage.removeItem(TOKEN_KEY)
+  }
+}
+
+async function login() {
+  if (!password.value) {
+    ElMessage.warning('请输入管理密码')
+    return
+  }
+  loggingIn.value = true
+  try {
+    const data = await adminLogin(password.value)
+    persistToken(data.token)
+    password.value = ''
+    await refreshAll()
+    ElMessage.success('登录成功')
+  } catch (err) {
+    ElMessage.error(err instanceof Error ? err.message : '登录失败')
+  } finally {
+    loggingIn.value = false
+  }
+}
+
+function logout() {
+  persistToken('')
+  items.value = []
+  bans.value = []
+}
+
+async function refreshAll() {
+  if (!token.value) return
+  loading.value = true
+  try {
+    const [itemRes, banRes] = await Promise.all([
+      adminListItems(token.value),
+      adminListBans(token.value),
+    ])
+    items.value = itemRes.items
+    bans.value = banRes.bans
+  } catch (err) {
+    const message = err instanceof Error ? err.message : '加载失败'
+    ElMessage.error(message)
+    if (message.toLowerCase().includes('unauthorized') || message.includes('401')) {
+      logout()
+    }
+  } finally {
+    loading.value = false
+  }
+}
+
+async function removeItem(row: Item) {
+  if (row.id == null) return
+  try {
+    await ElMessageBox.confirm(`确认删除「${row.title || row.slug}」？`, '删除内容', {
+      type: 'warning',
+      confirmButtonText: '删除',
+      cancelButtonText: '取消',
+    })
+  } catch {
+    return
+  }
+  try {
+    await adminDeleteItem(token.value, row.id)
+    ElMessage.success('已删除')
+    await refreshAll()
+  } catch (err) {
+    ElMessage.error(err instanceof Error ? err.message : '删除失败')
+  }
+}
+
+async function addBan() {
+  const ip = banIp.value.trim()
+  if (!ip) {
+    ElMessage.warning('请输入 IP')
+    return
+  }
+  banning.value = true
+  try {
+    await adminCreateBan(token.value, { ip, reason: banReason.value.trim() })
+    banIp.value = ''
+    banReason.value = ''
+    ElMessage.success('已封禁')
+    await refreshAll()
+  } catch (err) {
+    ElMessage.error(err instanceof Error ? err.message : '封禁失败')
+  } finally {
+    banning.value = false
+  }
+}
+
+async function removeBan(row: Ban) {
+  try {
+    await ElMessageBox.confirm(`解除封禁 ${row.ip}？`, '解除封禁', {
+      type: 'warning',
+      confirmButtonText: '解除',
+      cancelButtonText: '取消',
+    })
+  } catch {
+    return
+  }
+  try {
+    await adminDeleteBan(token.value, row.ip)
+    ElMessage.success('已解除')
+    await refreshAll()
+  } catch (err) {
+    ElMessage.error(err instanceof Error ? err.message : '操作失败')
+  }
+}
+
+function formatTime(value?: string | null): string {
+  if (!value) return '-'
+  try {
+    return new Date(value).toLocaleString('zh-CN', { hour12: false })
+  } catch {
+    return value
+  }
+}
+
+onMounted(() => {
+  const saved = sessionStorage.getItem(TOKEN_KEY)
+  if (saved) {
+    token.value = saved
+    void refreshAll()
+  }
+})
 </script>
 
 <template>
-  <div>
+  <div class="admin">
     <h2>管理</h2>
-    <p>管理后台占位。</p>
+
+    <section v-if="!loggedIn" class="login">
+      <el-input
+        v-model="password"
+        type="password"
+        show-password
+        placeholder="管理密码"
+        size="large"
+        @keyup.enter="login"
+      />
+      <el-button
+        type="primary"
+        class="full-width-xs login-btn"
+        size="large"
+        :loading="loggingIn"
+        @click="login"
+      >
+        登录
+      </el-button>
+    </section>
+
+    <template v-else>
+      <div class="toolbar">
+        <el-button class="full-width-xs" :loading="loading" @click="refreshAll">刷新</el-button>
+        <el-button class="full-width-xs" @click="logout">退出</el-button>
+      </div>
+
+      <h3>内容列表</h3>
+      <el-table :data="items" v-loading="loading" style="width: 100%" empty-text="暂无内容">
+        <el-table-column prop="slug" label="标识" min-width="100" />
+        <el-table-column label="标题" min-width="120">
+          <template #default="{ row }">
+            {{ row.title || row.file_name || '-' }}
+          </template>
+        </el-table-column>
+        <el-table-column prop="kind" label="类型" width="70" />
+        <el-table-column label="IP" min-width="110">
+          <template #default="{ row }">
+            {{ row.created_ip || '-' }}
+          </template>
+        </el-table-column>
+        <el-table-column label="时间" min-width="150">
+          <template #default="{ row }">
+            {{ formatTime(row.created_at) }}
+          </template>
+        </el-table-column>
+        <el-table-column label="操作" min-width="100" fixed="right">
+          <template #default="{ row }">
+            <el-button type="danger" size="large" @click="removeItem(row)">删除</el-button>
+          </template>
+        </el-table-column>
+      </el-table>
+
+      <h3 class="ban-title">IP 封禁</h3>
+      <div class="ban-form">
+        <el-input v-model="banIp" placeholder="IP 地址" size="large" />
+        <el-input v-model="banReason" placeholder="原因（可选）" size="large" />
+        <el-button
+          type="primary"
+          class="full-width-xs"
+          size="large"
+          :loading="banning"
+          @click="addBan"
+        >
+          封禁
+        </el-button>
+      </div>
+
+      <el-table :data="bans" v-loading="loading" style="width: 100%" empty-text="暂无封禁">
+        <el-table-column prop="ip" label="IP" min-width="120" />
+        <el-table-column prop="reason" label="原因" min-width="120" />
+        <el-table-column label="时间" min-width="150">
+          <template #default="{ row }">
+            {{ formatTime(row.created_at) }}
+          </template>
+        </el-table-column>
+        <el-table-column label="操作" min-width="100" fixed="right">
+          <template #default="{ row }">
+            <el-button size="large" @click="removeBan(row)">解除</el-button>
+          </template>
+        </el-table-column>
+      </el-table>
+    </template>
   </div>
 </template>
+
+<style scoped>
+.admin h2 {
+  margin: 0 0 16px;
+  font-size: 1.2rem;
+}
+
+.admin h3 {
+  margin: 20px 0 10px;
+  font-size: 1.05rem;
+}
+
+.login {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  max-width: 360px;
+}
+
+.login-btn {
+  margin-top: 4px;
+}
+
+.toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  margin-bottom: 8px;
+}
+
+.ban-form {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  margin-bottom: 12px;
+}
+
+.ban-title {
+  margin-top: 28px;
+}
+
+:deep(.el-button) {
+  min-height: 40px;
+}
+
+@media (min-width: 769px) {
+  .ban-form {
+    flex-direction: row;
+    align-items: center;
+  }
+
+  .ban-form .el-input {
+    flex: 1;
+  }
+
+  .ban-form .el-button {
+    width: auto;
+  }
+}
+</style>

frontend/src/views/ItemView.vue

@@ -1,9 +1,165 @@
 <script setup lang="ts">
+import MarkdownIt from 'markdown-it'
+import { computed, onMounted, ref, watch } from 'vue'
+import { useRoute } from 'vue-router'
+import { ElMessage } from 'element-plus'
+
+import { fetchItem, itemFileUrl, type Item } from '../api/client'
+
+const md = new MarkdownIt({
+  html: false,
+  linkify: true,
+  breaks: true,
+})
+
+const route = useRoute()
+const item = ref<Item | null>(null)
+const loading = ref(true)
+const error = ref('')
+const showBurnAlert = ref(false)
+
+const renderedBody = computed(() => {
+  if (!item.value?.body) return ''
+  return md.render(item.value.body)
+})
+
+const isImage = computed(() => {
+  const mime = item.value?.mime || ''
+  if (!mime.startsWith('image/')) return false
+  if (mime === 'image/svg+xml') return false
+  const name = (item.value?.file_name || '').toLowerCase()
+  return !name.endsWith('.svg')
+})
+
+const fileUrl = computed(() => {
+  if (!item.value || item.value.kind !== 'file') return ''
+  return itemFileUrl(item.value.slug)
+})
+
+async function load() {
+  const slug = String(route.params.slug || '')
+  loading.value = true
+  error.value = ''
+  item.value = null
+  showBurnAlert.value = false
+  try {
+    const data = await fetchItem(slug)
+    item.value = data
+    showBurnAlert.value = data.burn_after_read
+  } catch (err) {
+    error.value = err instanceof Error ? err.message : '加载失败'
+    ElMessage.error(error.value)
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(load)
+watch(
+  () => route.params.slug,
+  () => {
+    void load()
+  },
+)
 </script>
 
 <template>
-  <div>
+  <div v-loading="loading" class="item-view">
-    <h2>内容详情</h2>
+    <el-alert
-    <p>详情页占位。</p>
+      v-if="showBurnAlert"
+      class="burn-alert"
+      type="warning"
+      title="阅后即焚"
+      description="此内容仅可查看一次，离开或刷新后将无法再次打开。"
+      show-icon
+      :closable="true"
+      @close="showBurnAlert = false"
+    />
+
+    <el-result v-if="!loading && error" icon="warning" :title="error || '未找到'" />
+
+    <template v-else-if="item">
+      <h2 class="title">{{ item.title || item.file_name || item.slug }}</h2>
+      <div class="meta">
+        <span>{{ item.kind === 'file' ? '文件' : '文本' }}</span>
+        <span v-if="item.burn_after_read">阅后即焚</span>
+        <span v-if="!item.is_public">仅链接可见</span>
+      </div>
+
+      <div v-if="item.kind === 'text'" class="markdown" v-html="renderedBody" />
+
+      <div v-else class="file-block">
+        <template v-if="isImage">
+          <img class="preview" :src="fileUrl" :alt="item.file_name || item.title" />
+        </template>
+        <template v-else>
+          <p>文件：{{ item.file_name || item.slug }}</p>
+          <el-button type="primary" class="full-width-xs" tag="a" :href="fileUrl" download>
+            下载文件
+          </el-button>
+        </template>
+      </div>
+    </template>
   </div>
 </template>
+
+<style scoped>
+.item-view {
+  min-height: 200px;
+}
+
+.burn-alert {
+  margin-bottom: 16px;
+}
+
+.title {
+  margin: 0 0 8px;
+  font-size: 1.25rem;
+  word-break: break-word;
+}
+
+.meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px 12px;
+  margin-bottom: 16px;
+  color: #909399;
+  font-size: 0.9rem;
+}
+
+.markdown {
+  background: #fff;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  padding: 14px 16px;
+  overflow-x: auto;
+  line-height: 1.6;
+  word-break: break-word;
+}
+
+.markdown :deep(pre) {
+  overflow-x: auto;
+  padding: 10px;
+  background: #f5f7fa;
+  border-radius: 6px;
+}
+
+.markdown :deep(img) {
+  max-width: 100%;
+  height: auto;
+}
+
+.file-block {
+  background: #fff;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  padding: 14px;
+}
+
+.preview {
+  display: block;
+  max-width: 100%;
+  height: auto;
+  border-radius: 4px;
+}
+</style>