1.0

internal/events/config_events.go

@@ -0,0 +1,81 @@
+package events
+
+import (
+	"awesomeProject/internal/config"
+	"log"
+	"sync"
+)
+
+// ConfigEventManager 配置事件管理器
+type ConfigEventManager struct {
+	handlers map[string][]config.ConfigEventHandler // key: config_key, value: handlers
+	mutex    sync.RWMutex
+}
+
+var (
+	configEventManager *ConfigEventManager
+	once               sync.Once
+)
+
+// GetConfigEventManager 获取配置事件管理器单例
+func GetConfigEventManager() *ConfigEventManager {
+	once.Do(func() {
+		configEventManager = &ConfigEventManager{
+			handlers: make(map[string][]config.ConfigEventHandler),
+		}
+	})
+	return configEventManager
+}
+
+// RegisterHandler 注册配置事件处理器
+func (cem *ConfigEventManager) RegisterHandler(handler config.ConfigEventHandler) {
+	cem.mutex.Lock()
+	defer cem.mutex.Unlock()
+
+	configKeys := handler.GetConfigKeys()
+	for _, key := range configKeys {
+		if cem.handlers[key] == nil {
+			cem.handlers[key] = []config.ConfigEventHandler{}
+		}
+		cem.handlers[key] = append(cem.handlers[key], handler)
+	}
+
+	log.Printf("注册配置事件处理器，监听配置: %v", configKeys)
+}
+
+// TriggerEvent 触发配置变更事件
+func (cem *ConfigEventManager) TriggerEvent(event config.ConfigEvent) {
+	cem.mutex.RLock()
+	handlers := cem.handlers[event.ConfigKey]
+	cem.mutex.RUnlock()
+
+	if len(handlers) == 0 {
+		log.Printf("配置 %s 无对应的事件处理器", event.ConfigKey)
+		return
+	}
+
+	log.Printf("触发配置变更事件: %s, 旧值: %v, 新值: %v", event.ConfigKey, event.OldValue, event.NewValue)
+
+	// 并发处理事件，避免阻塞
+	for _, handler := range handlers {
+		go func(h config.ConfigEventHandler) {
+			if err := h.Handle(event); err != nil {
+				log.Printf("处理配置事件失败: %s, 错误: %v", event.ConfigKey, err)
+			}
+		}(handler)
+	}
+}
+
+// ListRegisteredHandlers 列出已注册的处理器（用于调试）
+func (cem *ConfigEventManager) ListRegisteredHandlers() map[string]int {
+	cem.mutex.RLock()
+	defer cem.mutex.RUnlock()
+
+	result := make(map[string]int)
+	for key, handlers := range cem.handlers {
+		result[key] = len(handlers)
+	}
+	return result
+}
+
+