fix: 修复系统设置的动态注入问题

- 创建 useSiteSettings composable 在应用启动时加载系统设置
- 从 window.__SITE_CONFIG__（后端注入）和 localStorage 初始化设置
- 修复 favicon 更新逻辑，正确移除旧 favicon 并添加新的
- 在路由守卫中设置页面标题，格式为 '页面名 - 网站名'
- 简化 admin.vue 和 admin-sidebar 组件，使用统一的设置管理

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/index.html

@@ -5,22 +5,33 @@
     <link rel="icon" type="image/svg+xml" media="(prefers-color-scheme: dark)" href="/logo.svg" />
     <link rel="icon" type="image/svg+xml" media="(prefers-color-scheme: light)" href="/logo-black.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>{{.SiteName}}</title>
+    <title>加载中...</title>
-    <meta name="description" content="{{.SiteDescription}}" />
+
-    <meta name="keywords" content="{{.SiteKeywords}}" />
-    
     <!-- Google Fonts - Inter -->
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
-    
+
+    <!-- 后端注入的系统配置（生产环境由后端渲染） -->
     <script>
+      // 后端渲染时会注入这些变量，开发环境使用默认值
       window.__SITE_CONFIG__ = {
         siteName: '{{.SiteName}}',
         siteDescription: '{{.SiteDescription}}',
         logoLight: '{{.LogoLight}}',
         logoDark: '{{.LogoDark}}',
         favicon: '{{.Favicon}}',
+      };
+
+      // 检测是否是开发环境（模板变量未被替换）
+      if (window.__SITE_CONFIG__.siteName.indexOf('{{') === 0) {
+        window.__SITE_CONFIG__ = {
+          siteName: '',
+          siteDescription: '',
+          logoLight: '',
+          logoDark: '',
+          favicon: '',
+        };
       }
     </script>
   </head>

frontend/src/App.vue

@@ -4,8 +4,13 @@ import { ConfigProvider } from 'reka-ui'
 import Loading from '@/components/loading.vue'
 import { Toaster } from '@/components/ui/sonner'
 import { useSystemTheme } from '@/composables/use-system-theme'
+import { useSiteSettings } from '@/composables/use-site-settings'
 
 useSystemTheme()
+const { initSiteSettings } = useSiteSettings()
+
+// 在应用启动时初始化系统设置
+initSiteSettings()
 </script>
 
 <template>

frontend/src/components/admin-sidebar/index.vue

@@ -1,13 +1,15 @@
 <script lang="ts" setup>
 import { Boxes, Code, CreditCard, DollarSign, FileLock, Gauge, GitBranch, HardDrive, Hash, Key, KeyRound, Mail, Megaphone, MessageSquare, Monitor, Network, Plug, ScrollText, Settings, Shield, Smartphone, Users, Variable } from 'lucide-vue-next'
-import { computed, onMounted, onUnmounted, reactive } from 'vue'
+import { computed, onMounted, onUnmounted, reactive, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import NavTeam from '@/components/app-sidebar/nav-team.vue'
 import TeamSwitcher from '@/components/app-sidebar/team-switcher.vue'
 import NavFooter from '@/components/admin-sidebar/nav-footer.vue'
+import { useSiteSettings } from '@/composables/use-site-settings'
 
 const { t } = useI18n()
+const { siteSettings } = useSiteSettings()
 
 const user = reactive({
   name: t('nav.admin'),
@@ -16,48 +18,32 @@ const user = reactive({
   role: 'admin',
 })
 
-const siteSettings = reactive({
-  name: t('nav.adminDashboard'),
-  logo: '',
-})
-
 const teams = reactive([
   {
     name: t('nav.adminDashboard'),
-    logo: Code,
+    logo: Code as any,
   },
 ])
 
-function loadSystemSettings() {
+// 监听系统设置变化
-  const storedSettings = localStorage.getItem('systemSettings')
+watch(() => siteSettings.siteName, (newName) => {
-  if (storedSettings) {
+  if (newName) {
-    try {
+    teams[0].name = newName
-      const parsed = JSON.parse(storedSettings)
-      if (parsed.site_name) {
-        siteSettings.name = parsed.site_name
-        teams[0].name = parsed.site_name
-      }
-      if (parsed.site_logo) {
-        siteSettings.logo = parsed.site_logo
-        teams[0].logo = parsed.site_logo
-      }
-    }
-    catch (e) {
-      console.error('Failed to parse systemSettings from localStorage', e)
-    }
   }
-}
+})
 
-function handleSettingsChange(event: CustomEvent) {
+watch(() => siteSettings.siteLogo, (newLogo) => {
-  const settings = event.detail
+  if (newLogo) {
-  if (settings.site_name) {
+    teams[0].logo = newLogo
-    siteSettings.name = settings.site_name
-    teams[0].name = settings.site_name
-  }
-  if (settings.site_logo) {
-    siteSettings.logo = settings.site_logo
-    teams[0].logo = settings.site_logo
   }
+})
+
+// 初始化时设置
+if (siteSettings.siteName) {
+  teams[0].name = siteSettings.siteName
+}
+if (siteSettings.siteLogo) {
+  teams[0].logo = siteSettings.siteLogo
 }
 
 onMounted(() => {
@@ -74,13 +60,9 @@ onMounted(() => {
       console.error('Failed to parse user from localStorage', e)
     }
   }
-
-  loadSystemSettings()
-  window.addEventListener('system-settings-changed', handleSettingsChange as EventListener)
 })
 
 onUnmounted(() => {
-  window.removeEventListener('system-settings-changed', handleSettingsChange as EventListener)
 })
 
 const navMain = computed(() => [

frontend/src/composables/use-site-settings.ts

@@ -0,0 +1,194 @@
+import { reactive } from 'vue'
+import { getFileUrl } from '@/utils/config'
+
+interface SiteSettings {
+  siteName: string
+  siteDescription: string
+  siteLogo: string
+  siteFavicon: string
+  logoLight: string
+  logoDark: string
+  loaded: boolean
+}
+
+const siteSettings = reactive<SiteSettings>({
+  siteName: '',
+  siteDescription: '',
+  siteLogo: '',
+  siteFavicon: '',
+  logoLight: '',
+  logoDark: '',
+  loaded: false,
+})
+
+function updateFavicon(favicon: string) {
+  if (!favicon)
+    return
+
+  const head = document.getElementsByTagName('head')[0]
+
+  // 移除旧的 favicon
+  const existingLinks = head.querySelectorAll('link[rel*="icon"]')
+  existingLinks.forEach((link) => link.remove())
+
+  // 添加新的 favicon
+  const link = document.createElement('link')
+  link.type = 'image/x-icon'
+  link.rel = 'shortcut icon'
+  link.href = getFileUrl(favicon)
+  head.appendChild(link)
+
+  // 同时添加 icon 类型的 link
+  const linkIcon = document.createElement('link')
+  linkIcon.type = 'image/x-icon'
+  linkIcon.rel = 'icon'
+  linkIcon.href = getFileUrl(favicon)
+  head.appendChild(linkIcon)
+}
+
+function updateTitle(title?: string) {
+  if (title) {
+    document.title = title
+  } else if (siteSettings.siteName) {
+    document.title = siteSettings.siteName
+  }
+}
+
+function applySettings(settings: Partial<SiteSettings>) {
+  if (settings.siteName) {
+    siteSettings.siteName = settings.siteName
+    updateTitle(settings.siteName)
+  }
+  if (settings.siteDescription) {
+    siteSettings.siteDescription = settings.siteDescription
+  }
+  if (settings.siteLogo) {
+    siteSettings.siteLogo = settings.siteLogo
+  }
+  if (settings.siteFavicon) {
+    siteSettings.siteFavicon = settings.siteFavicon
+    updateFavicon(settings.siteFavicon)
+  }
+  if (settings.logoLight) {
+    siteSettings.logoLight = settings.logoLight
+  }
+  if (settings.logoDark) {
+    siteSettings.logoDark = settings.logoDark
+  }
+  siteSettings.loaded = true
+}
+
+// 从 window.__SITE_CONFIG__ 获取初始配置（由后端注入）
+function initFromServerConfig() {
+  const config = (window as any).__SITE_CONFIG__
+  if (config) {
+    applySettings({
+      siteName: config.siteName || '',
+      siteDescription: config.siteDescription || '',
+      siteLogo: config.logoLight || config.logoDark || '',
+      logoLight: config.logoLight || '',
+      logoDark: config.logoDark || '',
+      favicon: config.favicon || '',
+    })
+    return true
+  }
+  return false
+}
+
+// 从 localStorage 获取缓存的设置
+function initFromLocalStorage() {
+  const storedSettings = localStorage.getItem('systemSettings')
+  if (storedSettings) {
+    try {
+      const parsed = JSON.parse(storedSettings)
+      applySettings({
+        siteName: parsed.site_name || '',
+        siteDescription: parsed.site_description || '',
+        siteLogo: parsed.site_logo || '',
+        siteFavicon: parsed.site_favicon || '',
+      })
+      return true
+    }
+    catch (e) {
+      console.error('Failed to parse systemSettings from localStorage', e)
+    }
+  }
+  return false
+}
+
+// 从 API 获取最新设置
+async function fetchSettings() {
+  try {
+    const response = await fetch('/api/v1/dev/system-settings', {
+      headers: {
+        'Authorization': `Bearer ${localStorage.getItem('token')}`,
+      },
+    })
+    const data = await response.json()
+    if (data.code === 200 && data.data) {
+      const settings = {
+        site_name: data.data.site_name || '',
+        site_description: data.data.site_description || '',
+        site_logo: data.data.site_logo || '',
+        site_favicon: data.data.site_favicon || '',
+      }
+      localStorage.setItem('systemSettings', JSON.stringify(settings))
+      applySettings({
+        siteName: settings.site_name,
+        siteDescription: settings.site_description,
+        siteLogo: settings.site_logo,
+        siteFavicon: settings.site_favicon,
+      })
+      // 触发事件通知其他组件
+      window.dispatchEvent(new CustomEvent('system-settings-changed', { detail: settings }))
+    }
+  }
+  catch (error) {
+    console.error('Failed to fetch system settings:', error)
+  }
+}
+
+// 初始化系统设置（在应用启动时调用）
+async function initSiteSettings() {
+  // 优先从后端注入的配置获取
+  const hasServerConfig = initFromServerConfig()
+
+  // 然后从 localStorage 获取缓存
+  const hasLocalConfig = initFromLocalStorage()
+
+  // 如果都没有，尝试从 API 获取
+  if (!hasServerConfig && !hasLocalConfig) {
+    await fetchSettings()
+  }
+
+  // 监听设置变化
+  window.addEventListener('system-settings-changed', ((event: CustomEvent) => {
+    applySettings({
+      siteName: event.detail.site_name,
+      siteDescription: event.detail.site_description,
+      siteLogo: event.detail.site_logo,
+      siteFavicon: event.detail.site_favicon,
+    })
+  }) as EventListener)
+}
+
+// 获取带页面标题的完整标题
+function getPageTitle(pageTitle?: string): string {
+  if (pageTitle && siteSettings.siteName) {
+    return `${pageTitle} - ${siteSettings.siteName}`
+  }
+  if (siteSettings.siteName) {
+    return siteSettings.siteName
+  }
+  return pageTitle || ''
+}
+
+export function useSiteSettings() {
+  return {
+    siteSettings,
+    initSiteSettings,
+    updateTitle,
+    getPageTitle,
+    fetchSettings,
+  }
+}

frontend/src/layouts/admin.vue

@@ -1,13 +1,11 @@
 <script setup lang="ts">
-import { computed, onMounted, onUnmounted } from 'vue'
+import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRouter } from 'vue-router'
 
 import AdminSidebar from '@/components/admin-sidebar/index.vue'
 import LanguageChange from '@/components/language-change.vue'
 import ToggleTheme from '@/components/toggle-theme.vue'
-import api from '@/services/api'
-import { getFileUrl } from '@/utils/config'
 
 const router = useRouter()
 const { t } = useI18n()
@@ -73,74 +71,6 @@ const breadcrumbs = computed(() => {
 
   return crumbs
 })
-
-function getAssetUrl(path: string) {
-  return getFileUrl(path)
-}
-
-function updateFavicon(favicon: string) {
-  if (!favicon)
-    return
-  const link: HTMLLinkElement = document.querySelector('link[rel*=\'icon\']') || document.createElement('link')
-  link.type = 'image/x-icon'
-  link.rel = 'shortcut icon'
-  link.href = getAssetUrl(favicon)
-  document.getElementsByTagName('head')[0].appendChild(link)
-}
-
-function updateSiteName(name: string) {
-  if (name)
-    document.title = name
-}
-
-function applySettings(settings: { site_name?: string, site_logo?: string, site_favicon?: string }) {
-  if (settings.site_favicon)
-    updateFavicon(settings.site_favicon)
-  if (settings.site_name)
-    updateSiteName(settings.site_name)
-}
-
-function handleSettingsChange(event: CustomEvent) {
-  applySettings(event.detail)
-}
-
-async function loadSystemSettings() {
-  const storedSettings = localStorage.getItem('systemSettings')
-  if (storedSettings) {
-    try {
-      applySettings(JSON.parse(storedSettings))
-    }
-    catch (e) {
-      console.error('Failed to parse systemSettings', e)
-    }
-    return
-  }
-
-  try {
-    const data = await api.get<any>('/dev/system-settings')
-    if (data) {
-      const settings = {
-        site_name: data.site_name || '',
-        site_logo: data.site_logo || '',
-        site_favicon: data.site_favicon || '',
-      }
-      localStorage.setItem('systemSettings', JSON.stringify(settings))
-      window.dispatchEvent(new CustomEvent('system-settings-changed', { detail: settings }))
-    }
-  }
-  catch (error) {
-    console.error('加载系统设置失败:', error)
-  }
-}
-
-onMounted(() => {
-  loadSystemSettings()
-  window.addEventListener('system-settings-changed', handleSettingsChange as EventListener)
-})
-
-onUnmounted(() => {
-  window.removeEventListener('system-settings-changed', handleSettingsChange as EventListener)
-})
 </script>
 
 <template>
@@ -179,4 +109,4 @@ onUnmounted(() => {
       </main>
     </UiSidebarInset>
   </UiSidebarProvider>
-</template>
+</template>

frontend/src/router/guard/index.ts

@@ -1,4 +1,5 @@
 import type { Router } from 'vue-router'
+import { useSiteSettings } from '@/composables/use-site-settings'
 
 const INSTALL_CACHE_KEY = 'app_installed'
 const INSTALL_CACHE_EXPIRY = 24 * 60 * 60 * 1000
@@ -93,4 +94,11 @@ export function createRouterGuard(router: Router) {
       return '/admin'
     }
   })
+
+  // 设置页面标题
+  router.afterEach((to) => {
+    const { siteSettings, getPageTitle } = useSiteSettings()
+    const pageTitle = to.meta?.title as string | undefined
+    document.title = getPageTitle(pageTitle)
+  })
 }