Function GetPromotionByCode

backend/plugin/stripe/stripe.go:490–507

GetPromotionByCode looks up an active promotion code eligible for first-time customers.

(code string, priceInCents int64)

// GetPromotionByCode looks up an active promotion code eligible for first-time customers.
func GetPromotionByCode(code string, priceInCents int64) *stripego.PromotionCode {
	iter := promotioncode.List(&stripego.PromotionCodeListParams{
		Code:   stripego.String(code),
		Active: stripego.Bool(true),
	})
	for iter.Next() {
		promo := iter.PromotionCode()
		if v := promo.Restrictions; v != nil {
			if v.MinimumAmount <= priceInCents && v.FirstTimeTransaction {
				return promo
			}
		}
	}
	if err := iter.Err(); err != nil {
		slog.Error("failed to get promotion", log.BBError(err), slog.String("code", code))
	}
	return nil
}