public CheckoutResponse InitiateCheckout(CheckoutRequest checkoutRequest)
{
CheckoutResponse response = new CheckoutResponse();
Status status = ValidateCheckout(checkoutRequest);
if (status != Status.Success)
{
response.Status = status;
return(response);
}
string productInfo = "ProductInfo";
JsonSerializerHelper jsh = new JsonSerializerHelper();
string serializedItems = jsh.Serialize(checkoutRequest.CheckoutItems);
if (string.IsNullOrWhiteSpace(serializedItems))
{
response.Status = Status.InvalidItem;
return(response);
}
long transactionId = CheckoutDbManager.CreateTransaction(checkoutRequest.User
, serializedItems
, ItemDataFormat.JSON
, TransactionType.Purchase
, TransactionStatus.Initiated
);
if (transactionId <= -1)
{
response.Status = Status.Failure;
return(response);
}
long orderDeliveryAddressMapId = CheckoutDbManager.CreateOrderDeliveryAddressMap(transactionId, checkoutRequest.DeliveryAddress);
if (orderDeliveryAddressMapId <= -1)
{
response.Status = Status.Failure;
return(response);
}
string hashSequence = GeneratePaymentRequestHashSequence(checkoutRequest.User.UserId
, this.configuration.PayUKey
, transactionId
, checkoutRequest.CheckoutItems.TotalCalcPrice
, productInfo
, checkoutRequest.User.FirstName
, checkoutRequest.User.PrimaryEmail
, this.configuration.PayUSalt);
string hash = CryptoHelper.ComputeSHA512Hash(hashSequence);
response.Status = Status.Success;
response.Hash = hash;
response.TransactonId = transactionId.ToString();
response.User = checkoutRequest.User;
return(response);
}
public Status ProcessPayment(Payment payment)
{
if (payment == null ||
string.IsNullOrWhiteSpace(payment.paymentId) ||
string.IsNullOrWhiteSpace(payment.merchantTransactionId))
{
return(Status.InvalidInput);
}
long transactionId = -1;
long.TryParse(payment.merchantTransactionId, out transactionId);
Transaction transaction = CheckoutDbManager.GetTransaction(transactionId);
if (transaction == null)
{
return(Status.InvalidTransaction);
}
Guid userId = Guid.Empty;
if (!Guid.TryParse(payment.udf1, out userId))
{
return(Status.InvalidUserID);
}
if (string.IsNullOrWhiteSpace(transaction.ItemData))
{
return(Status.InvalidItem);
}
JsonSerializerHelper jsh = new JsonSerializerHelper();
CheckoutItems checkoutItems = (CheckoutItems)jsh.Deserialize(transaction.ItemData, typeof(CheckoutItems));
if (checkoutItems == null ||
checkoutItems.Items == null ||
checkoutItems.Items.Length <= 0)
{
return(Status.InvalidItem);
}
if (payment.amount != checkoutItems.TotalCalcPrice)
{
return(Status.InvalidAmount);
}
if (payment.status == "Success")
{
CheckoutDbManager.UpdateTransactionStatus(transactionId
, TransactionStatus.Paid);
int receiptId = CheckoutDbManager.CreateReceipt(transaction.UserId
, transaction.TransactionId
, payment.paymentId
, (TransactionType)transaction.TransactionType
, TransactionProvider.PayU
, TransactionStatus.Paid);
string rawReceipt = string.Empty;
if (receiptId > 0)
{
rawReceipt = jsh.Serialize(payment);
CheckoutDbManager.CreateRawReceipt(receiptId, rawReceipt);
}
}
return(Status.Success);
}
