add

internal/domains/api/services/processors/ivyz/ivyzrax2_transform.go

@@ -1,25 +1,33 @@
 package ivyz
 
 import (
+	"math"
 	"strconv"
 )
 
 // mapNuoerKunyuFixToResponse 将 nuoer 响应（2json.md）转为对外结构（1json.md）：
-// 解包 result，将千分制 score 映射为百分制 scoreafywbase。
+// 解包 result，将千分制 score（越高越安全）映射为百分制 scoreafywbase（越低越安全）。
 func mapNuoerKunyuFixToResponse(data map[string]interface{}) map[string]interface{} {
 	scoreYwBase, ok := extractRax1Score(data)
 	score := ""
 	if ok {
-		score = mapScoreYwBaseToPercent(scoreYwBase)
+		score = mapScoreYwBaseToRiskPercent(scoreYwBase)
 	}
 	return map[string]interface{}{
 		"scoreafywbase": score,
 	}
 }
 
-// mapScoreYwBaseToPercent 千分制 scoreywbase 转百分制 scoreafywbase。
-// 与 mapRax1ScoreToScoreYwBase 互逆：percent = (984 - scoreYwBase) / 6.32。
-func mapScoreYwBaseToPercent(scoreYwBase float64) string {
-	percent := (rax1ScoreYwBaseIntercept - scoreYwBase) / rax1ScoreYwBaseSlope
-	return strconv.FormatFloat(percent, 'f', 2, 64)
+// mapScoreYwBaseToRiskPercent 千分制（越高越安全）→ 百分制风险分（越低越安全）。
+// 与 IVYZRAX1 mapRax1ScoreToScoreYwBase 互逆：thousand = round(984 - risk*6.32)。
+func mapScoreYwBaseToRiskPercent(scoreYwBase float64) string {
+	// 方向反转：千分越高（越安全）→ 风险百分越低（越安全）
+	riskPercent := (rax1ScoreYwBaseIntercept - scoreYwBase) / rax1ScoreYwBaseSlope
+	if riskPercent < 0 {
+		riskPercent = 0
+	} else if riskPercent > 100 {
+		riskPercent = 100
+	}
+	riskPercent = math.Round(riskPercent*100) / 100
+	return strconv.FormatFloat(riskPercent, 'f', 2, 64)
 }