feat: add paginated notification APIs and frontend support

frontend_nuxt/pages/message.vue

@@ -505,13 +505,16 @@
             </div>
           </template>
         </BaseTimeline>
+        <div v-if="hasMore" class="load-more">
+          <button class="load-more-button" @click="loadMore">加载更多</button>
+        </div>
       </div>
     </template>
   </div>
 </template>
 
 <script setup>
-import { computed, onMounted, ref } from 'vue'
+import { computed, onMounted, ref, watch } from 'vue'
 import BasePlaceholder from '~/components/BasePlaceholder.vue'
 import BaseTimeline from '~/components/BaseTimeline.vue'
 import NotificationContainer from '~/components/NotificationContainer.vue'
@@ -519,12 +522,17 @@ import { toast } from '~/main'
 import { authState, getToken } from '~/utils/auth'
 import { stripMarkdownLength } from '~/utils/markdown'
 import {
-  fetchNotifications,
+  fetchAllNotifications,
+  fetchUnreadNotifications,
   fetchUnreadCount,
-  isLoadingMessage,
+  isLoadingAll,
+  isLoadingUnread,
   markRead,
-  notifications,
+  notificationsAll,
+  notificationsUnread,
   markAllRead,
+  fetchNotificationPreferences,
+  updateNotificationPreference,
 } from '~/utils/notification'
 import TimeManager from '~/utils/time'
 
@@ -535,8 +543,18 @@ const selectedTab = ref(
   ['all', 'unread', 'control'].includes(route.query.tab) ? route.query.tab : 'unread',
 )
 const notificationPrefs = ref([])
+const pageAll = ref(0)
+const pageUnread = ref(0)
+const hasMoreAll = ref(true)
+const hasMoreUnread = ref(true)
 const filteredNotifications = computed(() =>
-  selectedTab.value === 'all' ? notifications.value : notifications.value.filter((n) => !n.read),
+  selectedTab.value === 'all' ? notificationsAll.value : notificationsUnread.value,
+)
+const isLoadingMessage = computed(() =>
+  selectedTab.value === 'all' ? isLoadingAll.value : isLoadingUnread.value,
+)
+const hasMore = computed(() =>
+  selectedTab.value === 'all' ? hasMoreAll.value : hasMoreUnread.value,
 )
 
 const fetchPrefs = async () => {
@@ -547,7 +565,14 @@ const togglePref = async (pref) => {
   const ok = await updateNotificationPreference(pref.type, !pref.enabled)
   if (ok) {
     pref.enabled = !pref.enabled
-    await fetchNotifications()
+    pageAll.value = 0
+    pageUnread.value = 0
+    const countAll = await fetchAllNotifications(0)
+    const countUnread = await fetchUnreadNotifications(0)
+    pageAll.value = 1
+    pageUnread.value = 1
+    hasMoreAll.value = countAll === 30
+    hasMoreUnread.value = countUnread === 30
     await fetchUnreadCount()
   } else {
     toast.error('操作失败')
@@ -627,9 +652,34 @@ const formatType = (t) => {
   }
 }
 
-onActivated(() => {
-  fetchNotifications()
-  fetchPrefs()
+const loadMore = async () => {
+  if (selectedTab.value === 'all') {
+    const c = await fetchAllNotifications(pageAll.value)
+    pageAll.value++
+    if (c < 30) hasMoreAll.value = false
+  } else {
+    const c = await fetchUnreadNotifications(pageUnread.value)
+    pageUnread.value++
+    if (c < 30) hasMoreUnread.value = false
+  }
+}
+
+onMounted(async () => {
+  await fetchPrefs()
+  await loadMore()
+  await fetchUnreadCount()
+})
+
+watch(selectedTab, async (tab) => {
+  if (tab === 'all' && notificationsAll.value.length === 0) {
+    pageAll.value = 0
+    hasMoreAll.value = true
+    await loadMore()
+  } else if (tab === 'unread' && notificationsUnread.value.length === 0) {
+    pageUnread.value = 0
+    hasMoreUnread.value = true
+    await loadMore()
+  }
 })
 </script>
 
@@ -691,6 +741,19 @@ onActivated(() => {
   height: 100%;
 }
 
+.load-more {
+  text-align: center;
+}
+
+.load-more-button {
+  margin: 10px auto;
+  padding: 6px 12px;
+  border: 1px solid var(--normal-border-color);
+  border-radius: 6px;
+  background: transparent;
+  cursor: pointer;
+}
+
 .notif-content {
   display: flex;
   flex-direction: column;