public async Task <bool> consumerRedeem(int productID, int userID, int amount)
{
string productName = await prodIDToProdName(productID);
MConsumerController consumerCtrl = new MConsumerController(userID);
consumerCtrl = await consumerCtrl.init();
await consumerCtrl.redeemVoucher(productName, Decimal.ToInt32(amount));
return(true);
}
public async Task <IHttpActionResult> redeemProduct(int userID, int productID, int numberUnits, DateTime startdate)
{
//check that the minimum number of units is applied according to what is in db:
if (!isValidNumUnits(productID, numberUnits))
{
return(BadRequest("The minimum number of units constraint has not been met"));
}
//calculate price of products for the specified number of days/units
//"ProductValue" field in activeProduct Items
decimal prodTotalPrice = calcProductPrice(productID, numberUnits);
//calculate totalVoucherValues for this user
decimal totalVoucherValues = calcTotalVoucherValues(userID);
//get the user's voucherList in ascending order
List <voucher> vouchersList = new List <voucher>();
vouchersList = getUserVouchersList(userID);
//make a decimal to deduct
decimal amountToDeduct = prodTotalPrice;
//check that the user has sufficient vouchers: that prodTotalPrice <= totalVoucherValues
if (prodTotalPrice <= totalVoucherValues)//can proceed with redeem process
{
//Add activeProductItem to db table
var consumerID = (from c in db.consumers where c.User_ID == userID select c).FirstOrDefault();
string prodUnitType = getProductUnitType(productID); //get the string eg 'per day'
DateTime endDate = getEndDateForProduct(prodUnitType, startdate, numberUnits); //calculate the end date
activeproductitem activeProdItem = createActiveProductItem(consumerID.Consumer_ID, productID, "", true, prodTotalPrice, numberUnits, startdate, endDate);
activeProdItem.transactionlocation = consumerID.Location_ID;
db.activeproductitems.Add(activeProdItem);
db.SaveChanges();
//Add productProviderPayment-right now it is for 2 help 1: PP_ID 11
productproviderpayment ppPaymentRec = new productproviderpayment();
ppPaymentRec.ProductProvider_ID = 11;
ppPaymentRec.ActiveProductItems_ID = activeProdItem.ActiveProductItems_ID;
ppPaymentRec.Description = "Payment to Product Provider";
ppPaymentRec.AmountToPay = activeProdItem.productValue;
ppPaymentRec.hasBeenPayed = false; //initially false
db.productproviderpayments.Add(ppPaymentRec);
db.SaveChanges();
//Update the 1 voucher table, 2 voucherTransaction table-not anymore and the 3 productRedemptionLog table
for (int i = 0; (i < vouchersList.Count) && (amountToDeduct > 0); i++)
{
decimal voucherVal = vouchersList.ElementAt(i).voucherValue;
if (amountToDeduct > vouchersList.ElementAt(i).voucherValue)
{
//will have to finish up this small voucher, it's value becomes 0
//this voucher is recorded individually in the productRedemptionLog
vouchersList.ElementAt(i).voucherValue = 0;
db.Entry(vouchersList.ElementAt(i)).State = EntityState.Modified;
db.SaveChanges();
//addVoucherTransactionLog()
//addVoucherTransactionLog(vouchersList.ElementAt(i).Voucher_ID, vouchersList.ElementAt(i).Voucher_ID, userID, 0, 31, voucherVal, "Voucher Redemption for Product Purchase", System.DateTime.Now);
//addProductRedemptionLog()
addProductRedemptionLog(activeProdItem.ActiveProductItems_ID, vouchersList.ElementAt(i).Voucher_ID, voucherVal);
//update amount to deduct: becomes less by voucher val
amountToDeduct -= voucherVal;
}
if (amountToDeduct <= vouchersList.ElementAt(i).voucherValue)
{
//use a part of this voucher
vouchersList.ElementAt(i).voucherValue = voucherVal - amountToDeduct;
db.Entry(vouchersList.ElementAt(i)).State = EntityState.Modified;
db.SaveChanges();
//add voucherTransactionLog()
//addVoucherTransactionLog(vouchersList.ElementAt(i).Voucher_ID, vouchersList.ElementAt(i).Voucher_ID, userID, 0, 31, amountToDeduct, "Voucher Redemption for Product Purchase", DateTime.Now);
//add productRedemptionLog
addProductRedemptionLog(activeProdItem.ActiveProductItems_ID, vouchersList.ElementAt(i).Voucher_ID, amountToDeduct);
//update amount to deduct
amountToDeduct = 0;
}
}//for loop
string productName = await prodIDToProdName(productID);
MConsumerController consumerCtrl = new MConsumerController(userID);
consumerCtrl = await consumerCtrl.init();
await consumerCtrl.redeemVoucher(productName, Decimal.ToInt32(prodTotalPrice));
return(Content(HttpStatusCode.OK, activeProdItem.ActiveProductItems_ID));
}
return(BadRequest("Insufficient voucher total"));
}//RedeemProduct method
