Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/pkg/model/ctoken.go

@@ -0,0 +1,47 @@
+package model
+
+import (
+	"fmt"
+
+	"git.sendico.io/tech/sxchnge/bff/pkg/merrors"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+// TokenPaymentData represents a network or gateway-issued card token.
+type TokenPaymentData struct {
+	Token          string `bson:"token" json:"token"`
+	Network        string `bson:"network,omitempty" json:"network,omitempty"`
+	Last4          string `bson:"last4,omitempty" json:"masked_pan,omitempty"`
+	ExpMonth       *int   `bson:"exp_month,omitempty" json:"exp_month,omitempty"`
+	ExpYear        *int   `bson:"exp_year,omitempty" json:"exp_year,omitempty"`
+	CardholderName string `bson:"cardholderName,omitempty" json:"cardholderName,omitempty"`
+	Country        string `bson:"country,omitempty" json:"country,omitempty"`
+}
+
+func (d *TokenPaymentData) UnmarshalBSON(data []byte) error {
+	var raw map[string]any
+	if err := bson.Unmarshal(data, &raw); err != nil {
+		return err
+	}
+	d.Token = paymentDataString(raw["token"])
+	d.Network = paymentDataString(raw["network"])
+	d.Last4 = firstPaymentDataString(raw, "last4", "last_4", "masked_pan")
+	d.ExpMonth = firstPaymentDataInt(raw, "exp_month", "expMonth")
+	d.ExpYear = firstPaymentDataInt(raw, "exp_year", "expYear")
+	d.CardholderName = firstPaymentDataString(raw, "cardholderName", "cardholder_name")
+	d.Country = paymentDataString(raw["country"])
+	return nil
+}
+
+func (m *PaymentMethod) AsCardToken() (*TokenPaymentData, error) {
+	if m.Type != PaymentTypeCardToken {
+		return nil, merrors.InvalidArgument(fmt.Sprintf("payment method type is %s, not cardToken", m.Type), "type")
+	}
+
+	var d TokenPaymentData
+	if err := bson.Unmarshal(m.Data, &d); err != nil {
+		return nil, err
+	}
+
+	return &d, nil
+}