Refine WAF attack log query time filtering logic

- Adjust time range filtering to use strictly positive time values
- Rename Elasticsearch query result variable for improved readability
- Maintain existing logging and error handling for WAF attack log retrieval

internal/service/waf.go

@@ -792,8 +792,8 @@ func (s *wafService) ListAttackLogs(ctx context.Context, req *AttackLogFilter) (
 		boolQuery.Filter(elastic.NewBoolQuery().MustNot(elastic.NewTermQuery("action", "pass")))
 	}
 
-	hasStart := req.StartTime >= 0
-	hasEnd := req.EndTime >= 0
+	hasStart := req.StartTime > 0
+	hasEnd := req.EndTime > 0
 	if hasStart || hasEnd {
 		rangeQuery := elastic.NewRangeQuery("attack_time")
 		if hasStart {
@@ -816,7 +816,7 @@ func (s *wafService) ListAttackLogs(ctx context.Context, req *AttackLogFilter) (
 	}
 
 	log.Info().Interface("limit", req.Limit).Msg("limit")
-	res, err := ss.Query(boolQuery).Size(req.Limit).
+	result, err := ss.Query(boolQuery).Size(req.Limit).
 		SortBy(elastic.NewFieldSort("attack_time").Order(false),
 			elastic.NewFieldSort("id.digit").Order(false)).
 		Do(ctx)
@@ -825,11 +825,11 @@ func (s *wafService) ListAttackLogs(ctx context.Context, req *AttackLogFilter) (
 		return nil, "", fmt.Errorf("failed to search waf detections: %v", err)
 	}
 
-	list := make([]model.WafDetection, len(res.Hits.Hits))
-	endIdx := len(res.Hits.Hits) - 1
+	list := make([]model.WafDetection, len(result.Hits.Hits))
+	endIdx := len(result.Hits.Hits) - 1
 	pageToken := ""
-	log.Info().Interface("res", res).Msg("list attack logs res")
-	for i, hit := range res.Hits.Hits {
+	log.Info().Interface("res", result).Msg("list attack logs res")
+	for i, hit := range result.Hits.Hits {
 		log.Info().Interface("hit source", hit.Source).Msg("hit")
 		wafDetection := model.WafDetection{}
 		if err = json.Unmarshal(hit.Source, &wafDetection); err != nil {