quotation service fixed

api/payments/storage/model/rails.go

@@ -0,0 +1,62 @@
+package model
+
+import "strings"
+
+var supportedRails = map[Rail]struct{}{
+	RailCrypto:             {},
+	RailProviderSettlement: {},
+	RailLedger:             {},
+	RailCardPayout:         {},
+	RailFiatOnRamp:         {},
+	RailFiatOffRamp:        {},
+}
+
+// ParseRail canonicalizes string values into a Rail token.
+func ParseRail(value string) Rail {
+	clean := strings.ToUpper(strings.TrimSpace(value))
+	if clean == "" {
+		return RailUnspecified
+	}
+	clean = strings.ReplaceAll(clean, "-", "_")
+	clean = strings.ReplaceAll(clean, " ", "_")
+	for strings.Contains(clean, "__") {
+		clean = strings.ReplaceAll(clean, "__", "_")
+	}
+
+	switch clean {
+	case string(RailCrypto), "RAIL_CRYPTO":
+		return RailCrypto
+	case string(RailProviderSettlement), "PROVIDER_SETTLEMENT", "RAIL_SETTLEMENT", "RAIL_PROVIDER_SETTLEMENT":
+		return RailProviderSettlement
+	case string(RailLedger), "RAIL_LEDGER":
+		return RailLedger
+	case string(RailCardPayout), "CARD_PAYOUT", "RAIL_CARD", "RAIL_CARD_PAYOUT":
+		return RailCardPayout
+	case string(RailFiatOnRamp), "FIAT_ONRAMP", "RAIL_ONRAMP", "RAIL_FIAT_ONRAMP":
+		return RailFiatOnRamp
+	case string(RailFiatOffRamp), "FIAT_OFFRAMP", "RAIL_OFFRAMP", "RAIL_FIAT_OFFRAMP":
+		return RailFiatOffRamp
+	default:
+		return RailUnspecified
+	}
+}
+
+// IsSupportedRail reports whether rail is recognized by payment planning.
+func IsSupportedRail(rail Rail) bool {
+	_, ok := supportedRails[ParseRail(string(rail))]
+	return ok
+}
+
+func normalizeRail(value Rail) Rail {
+	parsed := ParseRail(string(value))
+	if parsed != RailUnspecified {
+		return parsed
+	}
+
+	clean := strings.ToUpper(strings.TrimSpace(string(value)))
+	if clean == "" {
+		return RailUnspecified
+	}
+
+	return Rail(clean)
+}