MainActivity.kt

private fun getPaymentDetailToString(payment: Payment): String {
        return when (payment) {
            is Payment.CreditCard ->
                "Credit Card \nName: ${payment.name} \nCard Number: ${payment.number} \nExpired Date: ${payment.expiredDate} \nTransfer Amount: ${payment.transferAmount}"
            is Payment.CashBank ->
                "Cash Bank \nBank Code: ${payment.bankCode} \nBank Name: ${payment.bankName} \nTransfer Amount: ${payment.transferAmount}"
            is Payment.Promptpay ->
                "Promptpay \nName: ${payment.name} \nCitizen Id: ${payment.citizenId} \nMobile Number: ${payment.mobileNumber} \nTransfer Amount: ${payment.transferAmount}"
            Payment.NonePayment -> "None Payment"
        }
    }