优化结构

internal/integration/cache/cache.go

@@ -87,6 +87,38 @@ func (s *Store) Delete(ctx context.Context, key string) error {
 	return nil
 }
 
+func (s *Store) GetAndDelete(ctx context.Context, key string) (string, bool, error) {
+	if client := s.client(); client != nil {
+		value, err := client.Eval(ctx, "local v=redis.call('GET',KEYS[1]); if v then redis.call('DEL',KEYS[1]); end; return v", []string{key}).Result()
+		if err == redis.Nil {
+			return "", false, nil
+		}
+		if err != nil {
+			return "", false, err
+		}
+		if value == nil {
+			return "", false, nil
+		}
+		switch typed := value.(type) {
+		case string:
+			return typed, true, nil
+		case []byte:
+			return string(typed), true, nil
+		default:
+			return "", false, nil
+		}
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	entry, ok := s.memory[key]
+	if !ok || (!entry.expiresAt.IsZero() && time.Now().After(entry.expiresAt)) {
+		delete(s.memory, key)
+		return "", false, nil
+	}
+	delete(s.memory, key)
+	return entry.value, true, nil
+}
+
 func (s *Store) Increment(ctx context.Context, key string, expiration time.Duration) (int64, error) {
 	if client := s.client(); client != nil {
 		if expiration > 0 {