修复 LLM Provider 配置热更新问题
问题:在 /admin/llm/api 页面修改 AI 提供商配置后,配置没有立即生效,AI 依然使用旧的提供商工作 根本原因: - LLM Provider 配置在程序启动时加载到内存 (llm.State) - 管理后台修改配置时,只更新了数据库,内存配置未更新 - AI 继续使用内存中的旧配置 解决方案: 1. 为 llm.State 添加动态更新方法 (UpdateProvider/AddProvider/RemoveProvider) 2. 在 AI Service 中暴露配置更新接口,支持运行时重新加载 3. 在配置保存后自动触发内存配置重新加载 4. 创建新的 LLM Client 使新配置立即生效 关键特性: - 线程安全:使用 sync.RWMutex 保护并发访问 - 容错处理:重新加载失败不影响数据库更新 - 无需重启:配置修改后立即生效 - 完整测试:添加单元测试验证功能 修改文件: - internal/llm/state.go: 添加配置更新方法 - internal/ai/service.go: 添加配置重新加载接口 - internal/llmadmin/admin_llm_routes.go: 配置更新时触发重新加载 - internal/web/web.go: 传递 AI Service 到路由 - main.go: 连接组件 - internal/llm/state_test.go: 新增单元测试 - internal/web/map_tile_proxy_routes_test.go: 修复测试 测试: - ✅ 所有现有测试通过 - ✅ 新增测试覆盖核心功能 - ✅ 项目成功编译 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@@ -135,3 +135,137 @@ func (s *State) ListProfiles() []ProviderConfig {
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}
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return profiles
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}
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// UpdateProvider updates an existing provider's configuration
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func (s *State) UpdateProvider(config ProviderConfig) error {
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name := strings.TrimSpace(config.Name)
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if name == "" {
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return errors.New("llm provider name cannot be empty")
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}
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if strings.TrimSpace(config.APIKey) == "" {
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return fmt.Errorf("llm provider %s api_key is required", name)
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}
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if strings.TrimSpace(config.Model) == "" {
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return fmt.Errorf("llm provider %s model is required", name)
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}
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if strings.TrimSpace(config.BaseURL) == "" {
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return fmt.Errorf("llm provider %s base_url is required", name)
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}
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if config.Timeout <= 0 {
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config.Timeout = 120
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}
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s.mu.Lock()
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defer s.mu.Unlock()
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if _, ok := s.profiles[name]; !ok {
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return fmt.Errorf("llm provider not found: %s", name)
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}
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// Create new client with updated config
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s.profiles[name] = &Profile{
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Config: config,
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Client: ark.NewClientWithApiKey(
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config.APIKey,
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ark.WithBaseUrl(config.BaseURL),
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ark.WithTimeout(time.Duration(config.Timeout)*time.Second),
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),
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}
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// Update active status if needed
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if config.Active && s.activeName != name {
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s.activeName = name
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} else if !config.Active && s.activeName == name {
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// If we're deactivating the current active provider, switch to the first available
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for _, otherName := range s.order {
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if otherName != name {
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s.activeName = otherName
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break
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}
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}
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}
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return nil
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}
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// AddProvider adds a new provider to the state
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func (s *State) AddProvider(config ProviderConfig) error {
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name := strings.TrimSpace(config.Name)
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if name == "" {
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return errors.New("llm provider name cannot be empty")
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}
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if strings.TrimSpace(config.APIKey) == "" {
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return fmt.Errorf("llm provider %s api_key is required", name)
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}
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if strings.TrimSpace(config.Model) == "" {
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return fmt.Errorf("llm provider %s model is required", name)
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}
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if strings.TrimSpace(config.BaseURL) == "" {
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return fmt.Errorf("llm provider %s base_url is required", name)
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}
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if config.Timeout <= 0 {
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config.Timeout = 120
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}
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s.mu.Lock()
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defer s.mu.Unlock()
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if _, ok := s.profiles[name]; ok {
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return fmt.Errorf("llm provider already exists: %s", name)
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}
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s.profiles[name] = &Profile{
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Config: config,
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Client: ark.NewClientWithApiKey(
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config.APIKey,
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ark.WithBaseUrl(config.BaseURL),
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ark.WithTimeout(time.Duration(config.Timeout)*time.Second),
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),
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}
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s.order = append(s.order, name)
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// Set as active if it's the first one or explicitly marked active
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if len(s.profiles) == 1 || config.Active {
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s.activeName = name
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}
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return nil
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}
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// RemoveProvider removes a provider from the state
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func (s *State) RemoveProvider(name string) error {
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name = strings.TrimSpace(name)
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if name == "" {
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return errors.New("llm provider name cannot be empty")
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}
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s.mu.Lock()
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defer s.mu.Unlock()
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if _, ok := s.profiles[name]; !ok {
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return fmt.Errorf("llm provider not found: %s", name)
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}
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// Don't allow removing the last provider
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if len(s.profiles) == 1 {
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return errors.New("cannot remove the last llm provider")
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}
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delete(s.profiles, name)
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// Remove from order
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newOrder := make([]string, 0, len(s.order)-1)
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for _, n := range s.order {
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if n != name {
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newOrder = append(newOrder, n)
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}
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}
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s.order = newOrder
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// If we removed the active provider, switch to the first available
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if s.activeName == name {
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s.activeName = s.order[0]
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}
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return nil
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}
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