feat: show channel message indicator

feat: add channel support

backend/src/main/java/com/openisle/config/ChannelInitializer.java

@@ -18,14 +18,14 @@ public class ChannelInitializer implements CommandLineRunner {
             chat.setChannel(true);
             chat.setName("吹水群");
             chat.setDescription("吹水聊天");
-            chat.setAvatar("/default-avatar.svg");
+            chat.setAvatar("https://openisle-1307107697.cos.accelerate.myqcloud.com/dynamic_assert/32647273e2334d14adfd4a6ce9db0643.jpeg");
             conversationRepository.save(chat);
 
             MessageConversation tech = new MessageConversation();
             tech.setChannel(true);
             tech.setName("技术讨论群");
             tech.setDescription("讨论技术相关话题");
-            tech.setAvatar("/default-avatar.svg");
+            tech.setAvatar("https://openisle-1307107697.cos.accelerate.myqcloud.com/dynamic_assert/5edde9a5864e471caa32491dbcdaa8b2.png");
             conversationRepository.save(tech);
         }
     }

backend/src/main/java/com/openisle/config/SecurityConfig.java

@@ -121,6 +121,7 @@ public class SecurityConfig {
                     .requestMatchers(HttpMethod.GET, "/api/reaction-types").permitAll()
                     .requestMatchers(HttpMethod.GET, "/api/activities/**").permitAll()
                     .requestMatchers(HttpMethod.GET, "/api/sitemap.xml").permitAll()
+                    .requestMatchers(HttpMethod.GET, "/api/channels").permitAll()
                     .requestMatchers(HttpMethod.GET, "/api/rss").permitAll()
                     .requestMatchers(HttpMethod.GET, "/api/point-goods").permitAll()
                     .requestMatchers(HttpMethod.POST, "/api/point-goods").permitAll()
@@ -156,7 +157,7 @@ public class SecurityConfig {
                         uri.startsWith("/api/search") || uri.startsWith("/api/users") ||
                          uri.startsWith("/api/reaction-types") || uri.startsWith("/api/config") ||
                          uri.startsWith("/api/activities") || uri.startsWith("/api/push/public-key") ||
-                                uri.startsWith("/api/point-goods") ||
+                                uri.startsWith("/api/point-goods") || uri.startsWith("/api/channels") ||
                          uri.startsWith("/api/sitemap.xml") || uri.startsWith("/api/medals") ||
                          uri.startsWith("/api/rss"));
 

backend/src/main/java/com/openisle/dto/ChannelDto.java

@@ -10,6 +10,7 @@ public class ChannelDto {
     private String name;
     private String description;
     private String avatar;
+    private MessageDto lastMessage;
     private long memberCount;
     private boolean joined;
     private long unreadCount;

frontend_nuxt/components/HeaderComponent.vue

@@ -6,7 +6,10 @@
           <button class="menu-btn" ref="menuBtn" @click="$emit('toggle-menu')">
             <i class="fas fa-bars"></i>
           </button>
-          <span v-if="isMobile && unreadMessageCount > 0" class="menu-unread-dot"></span>
+          <span
+            v-if="isMobile && (unreadMessageCount > 0 || hasChannelUnread)"
+            class="menu-unread-dot"
+          ></span>
         </div>
         <NuxtLink class="logo-container" :to="`/`" @click="refrechData">
           <img
@@ -53,6 +56,7 @@
               <span v-if="unreadMessageCount > 0" class="unread-badge">{{
                 unreadMessageCount
               }}</span>
+              <span v-else-if="hasChannelUnread" class="unread-dot"></span>
             </div>
           </ToolTip>
 
@@ -85,6 +89,7 @@ import ToolTip from '~/components/ToolTip.vue'
 import SearchDropdown from '~/components/SearchDropdown.vue'
 import { authState, clearToken, loadCurrentUser } from '~/utils/auth'
 import { useUnreadCount } from '~/composables/useUnreadCount'
+import { useChannelUnread } from '~/composables/useChannelUnread'
 import { useIsMobile } from '~/utils/screen'
 import { themeState, cycleTheme, ThemeMode } from '~/utils/theme'
 import { toast } from '~/main'
@@ -103,6 +108,7 @@ const props = defineProps({
 const isLogin = computed(() => authState.loggedIn)
 const isMobile = useIsMobile()
 const { count: unreadMessageCount, fetchUnreadCount } = useUnreadCount()
+const { hasUnread: hasChannelUnread, fetchChannelUnread } = useChannelUnread()
 const avatar = ref('')
 const showSearch = ref(false)
 const searchDropdown = ref(null)
@@ -227,8 +233,10 @@ onMounted(async () => {
   }
   const updateUnread = async () => {
     if (authState.loggedIn) {
-      // Initialize the unread count composable
       fetchUnreadCount()
+      fetchChannelUnread()
+    } else {
+      fetchChannelUnread()
     }
   }
 
@@ -413,6 +421,16 @@ onMounted(async () => {
   box-sizing: border-box;
 }
 
+.unread-dot {
+  position: absolute;
+  top: -2px;
+  right: -4px;
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  background-color: #ff4d4f;
+}
+
 .rss-icon {
   animation: rss-glow 2s 3;
 }

frontend_nuxt/composables/useChannelUnread.js

@@ -0,0 +1,38 @@
+import { ref } from 'vue'
+import { getToken } from '~/utils/auth'
+
+const hasUnread = ref(false)
+
+export function useChannelUnread() {
+  const config = useRuntimeConfig()
+  const API_BASE_URL = config.public.apiBaseUrl
+
+  const setFromList = (channels) => {
+    hasUnread.value = Array.isArray(channels) && channels.some((c) => c.unreadCount > 0)
+  }
+
+  const fetchChannelUnread = async () => {
+    const token = getToken()
+    if (!token) {
+      hasUnread.value = false
+      return
+    }
+    try {
+      const response = await fetch(`${API_BASE_URL}/api/channels`, {
+        headers: { Authorization: `Bearer ${token}` },
+      })
+      if (response.ok) {
+        const data = await response.json()
+        setFromList(data)
+      }
+    } catch (e) {
+      console.error('Failed to fetch channel unread status:', e)
+    }
+  }
+
+  return {
+    hasUnread,
+    fetchChannelUnread,
+    setFromList,
+  }
+}

frontend_nuxt/pages/message-box/[id].vue

@@ -22,8 +22,13 @@
         </div>
         <BaseTimeline :items="messages">
           <template #item="{ item }">
-            <div class="message-timestamp">
-              {{ TimeManager.format(item.createdAt) }}
+            <div class="message-header">
+              <div class="user-name">
+                {{ item.sender.username }}
+              </div>
+              <div class="message-timestamp">
+                {{ TimeManager.format(item.createdAt) }}
+              </div>
             </div>
             <div class="message-content">
               <div class="info-content-text" v-html="renderMarkdown(item.content)"></div>
@@ -64,6 +69,7 @@ import { renderMarkdown } from '~/utils/markdown'
 import MessageEditor from '~/components/MessageEditor.vue'
 import { useWebSocket } from '~/composables/useWebSocket'
 import { useUnreadCount } from '~/composables/useUnreadCount'
+import { useChannelUnread } from '~/composables/useChannelUnread'
 import TimeManager from '~/utils/time'
 import BaseTimeline from '~/components/BaseTimeline.vue'
 import BasePlaceholder from '~/components/BasePlaceholder.vue'
@@ -73,6 +79,7 @@ const route = useRoute()
 const API_BASE_URL = config.public.apiBaseUrl
 const { connect, disconnect, subscribe, isConnected } = useWebSocket()
 const { fetchUnreadCount: refreshGlobalUnreadCount } = useUnreadCount()
+const { fetchChannelUnread: refreshChannelUnread } = useChannelUnread()
 let subscription = null
 
 const messages = ref([])
@@ -253,6 +260,7 @@ async function markConversationAsRead() {
     })
     // After marking as read, refresh the global unread count
     refreshGlobalUnreadCount()
+    refreshChannelUnread()
   } catch (e) {
     console.error('Failed to mark conversation as read', e)
   }
@@ -448,10 +456,22 @@ onUnmounted(() => {
 .message-timestamp {
   font-size: 11px;
   color: var(--text-color-secondary);
-  margin-top: 5px;
   opacity: 0.6;
 }
 
+.message-header {
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+  gap: 10px;
+}
+
+.user-name {
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text-color);
+}
+
 .message-item.sent {
   align-self: flex-end;
   flex-direction: row-reverse;

frontend_nuxt/pages/message-box/index.vue

@@ -97,7 +97,11 @@
               <div class="message-time">成员 {{ ch.memberCount }}</div>
             </div>
             <div class="last-message-row">
-              <div class="last-message">{{ ch.description }}</div>
+              <div class="last-message">
+                {{
+                  ch.lastMessage ? stripMarkdownLength(ch.lastMessage.content, 100) : ch.description
+                }}
+              </div>
             </div>
           </div>
         </div>
@@ -113,6 +117,7 @@ import { getToken, fetchCurrentUser } from '~/utils/auth'
 import { toast } from '~/main'
 import { useWebSocket } from '~/composables/useWebSocket'
 import { useUnreadCount } from '~/composables/useUnreadCount'
+import { useChannelUnread } from '~/composables/useChannelUnread'
 import TimeManager from '~/utils/time'
 import { stripMarkdownLength } from '~/utils/markdown'
 import SearchPersonDropdown from '~/components/SearchPersonDropdown.vue'
@@ -127,6 +132,8 @@ const currentUser = ref(null)
 const API_BASE_URL = config.public.apiBaseUrl
 const { connect, disconnect, subscribe, isConnected } = useWebSocket()
 const { fetchUnreadCount: refreshGlobalUnreadCount } = useUnreadCount()
+const { fetchChannelUnread: refreshChannelUnread, setFromList: setChannelUnreadFromList } =
+  useChannelUnread()
 let subscription = null
 
 const activeTab = ref('messages')
@@ -185,7 +192,9 @@ async function fetchChannels() {
       headers: { Authorization: `Bearer ${token}` },
     })
     if (!response.ok) throw new Error('无法加载频道')
-    channels.value = await response.json()
+    const data = await response.json()
+    channels.value = data
+    setChannelUnreadFromList(data)
   } catch (e) {
     toast.error(e.message)
   } finally {
@@ -224,6 +233,7 @@ onActivated(async () => {
   if (currentUser.value) {
     await fetchConversations()
     refreshGlobalUnreadCount() // Refresh global count when entering the list
+    refreshChannelUnread()
     const token = getToken()
     if (token && !isConnected.value) {
       connect(token)
@@ -262,8 +272,6 @@ function goToConversation(id) {
 
 <style scoped>
 .messages-container {
-  margin: 0 auto;
-  padding: 20px;
 }
 
 .tabs {
@@ -291,6 +299,8 @@ function goToConversation(id) {
 
 .search-container {
   margin-bottom: 24px;
+  margin-left: 20px;
+  margin-right: 20px;
 }
 
 .messages-header {
@@ -330,6 +340,8 @@ function goToConversation(id) {
 .conversation-item {
   display: flex;
   align-items: center;
+  margin-left: 20px;
+  margin-right: 20px;
   padding: 8px 10px;
   cursor: pointer;
   transition: background-color 0.2s ease;
@@ -415,8 +427,9 @@ function goToConversation(id) {
 
 /* 响应式设计 */
 @media (max-width: 768px) {
-  .messages-container {
-    padding: 10px 10px;
+  .conversation-item {
+    margin-left: 10px;
+    margin-right: 10px;
   }
 
   .messages-title {