Remove checks

pkg/analyzer/scoring.go

@@ -45,11 +45,6 @@ func ScoreToGrade(score int) string {
 	}
 }
 
-// ScoreToCheckGrade converts a percentage score to an api.CheckGrade
-func ScoreToCheckGrade(score int) api.CheckGrade {
-	return api.CheckGrade(ScoreToGrade(score))
-}
-
 // ScoreToReportGrade converts a percentage score to an api.ReportGrade
 func ScoreToReportGrade(score int) api.ReportGrade {
 	return api.ReportGrade(ScoreToGrade(score))
@@ -62,3 +57,29 @@ type DeliverabilityScorer struct{}
 func NewDeliverabilityScorer() *DeliverabilityScorer {
 	return &DeliverabilityScorer{}
 }
+
+// CalculateSpamScore calculates spam score from SpamAssassin results
+// Returns a score from 0-100 where higher is better
+func (s *DeliverabilityScorer) CalculateSpamScore(result *SpamAssassinResult) int {
+	if result == nil {
+		return 100 // No spam scan results, assume good
+	}
+
+	// SpamAssassin score typically ranges from -10 to +20
+	// Score < 0 is very likely ham (good)
+	// Score 0-5 is threshold range (configurable, usually 5.0)
+	// Score > 5 is likely spam
+
+	score := result.Score
+
+	// Convert SpamAssassin score to 0-100 scale (inverted - lower SA score is better)
+	if score <= 0 {
+		return 100 // Perfect score for ham
+	} else if score >= result.RequiredScore {
+		return 0 // Failed spam test
+	} else {
+		// Linear scale between 0 and required threshold
+		percentage := (score / result.RequiredScore) * 100
+		return int(100 - percentage)
+	}
+}