Receipts — VP3350

func generateReceipt(_ r: VP3350TransactionResult) -> [String: String] {
    return [
        "Merchant": "Your Business",
        "Date":     DateFormatter.localizedString(from: r.timestamp, dateStyle: .medium, timeStyle: .short),
        "Amount":   String(format: "$%.2f", r.amount),
        "Card":     "\(r.cardBrand) ending \(r.cardLast4)",
        "Entry":    r.entryMode.description,  // Chip, Tap, or Swipe
        "Auth":     r.authCode,
        "TxID":     r.transactionID,
        "Status":   r.isApproved ? "APPROVED" : "DECLINED",
    ]
}