private static async Task <bool> TrySharePaymentWithReferrer(BitcornContext dbContext,
SubscriptionResponse output,
SubRequest subRequest,
Subscription subInfo,
SubscriptionTier requestedTierInfo,
User user,
int subscriptionPaymentRecipientId,
decimal cost,
SubscriptionState previousSubState,
SubTx subTx)
{
//if (previousSubState != SubscriptionState.None) return false;
//if subscription referrar share is defined and its between 0 and 1
//get subscriber userreferral info
var userReferral = await dbContext.UserReferral.FirstOrDefaultAsync(r => r.UserId == user.UserId);
if (userReferral != null && userReferral.ReferralId != 0)
{
//get info of the person who referred the subscriber
var referrer = await dbContext.Referrer.FirstOrDefaultAsync(u => u.ReferralId == userReferral.ReferralId);
//check if referrer can get rewards
if (ReferralUtils.IsValidReferrer(referrer))
{
var referrerUser = await dbContext.JoinUserModels().FirstOrDefaultAsync(u => u.UserId == referrer.UserId);
if (referrerUser != null && !referrerUser.IsBanned)
{
bool success = false;
if (subInfo.ReferrerPercentage != null && subInfo.ReferrerPercentage > 0 && subInfo.ReferrerPercentage <= 1)
{
//get the user who received the subscription payment
var subscriptionPaymentRecipient = await dbContext.JoinUserModels().FirstOrDefaultAsync(u => u.UserId == subscriptionPaymentRecipientId);
success = await ShareSubscriptionPaymentWithReferrer(dbContext,
subInfo,
cost,
subTx,
referrer,
referrerUser,
subscriptionPaymentRecipient);
}
if (previousSubState == SubscriptionState.None && subInfo.Name == "BITCORNFarms")
{
await ReferralUtils.BonusPayout(dbContext, userReferral, referrer, user, referrerUser, referrerUser.UserStat);
}
return(success);
}
}
}
return(false);
}
static async Task <bool> ShareSubscriptionPaymentWithReferrer(BitcornContext dbContext,
Subscription subInfo,
decimal cost,
SubTx subTx,
Referrer referrer,
User referrerUser,
User subscriptionPaymentRecipient)
{
if (referrer.EnableSubscriptionRewards)
{
//get referrer user info
if (!subInfo.RestrictReferralRewards || (subInfo.RestrictReferralRewards && (referrerUser.Level == "BEST" ||
referrerUser.Level == "BAIT" ||
referrerUser.IsAdmin() ||
referrer.Tier >= 3)))
{
//calculate amount that will be sent to the referrer
var referralShare = cost * subInfo.ReferrerPercentage.Value;
//prepare transaction to the referrer
var referralShareTx = await TxUtils.PrepareTransaction(subscriptionPaymentRecipient, referrerUser, referralShare, "BITCORNFarms", "$sub referral share", dbContext);
//make sure stat tracking values have been initialized
if (referrerUser.UserStat.TotalReferralRewardsCorn == null)
{
referrerUser.UserStat.TotalReferralRewardsCorn = 0;
}
//make sure stat tracking values have been initialized
if (referrerUser.UserStat.TotalReferralRewardsUsdt == null)
{
referrerUser.UserStat.TotalReferralRewardsUsdt = 0;
}
//increment total received corn rewards
referrerUser.UserStat.TotalReferralRewardsCorn += referralShare;
//inceremnt total received usdt rewards
referrerUser.UserStat.TotalReferralRewardsUsdt +=
((referralShare) * (await ProbitApi.GetCornPriceAsync(dbContext)));
//execute transaction
if (await TxUtils.ExecuteTransaction(referralShareTx, dbContext))
{
//if transaction was made, log & update ytd total
await ReferralUtils.UpdateYtdTotal(dbContext, referrer, referralShare);
var referralTx = await ReferralUtils.LogReferralTx(dbContext, referrerUser.UserId, referralShare, "$sub referral share");
subTx.ReferralTxId = referralTx.ReferralTxId;
await dbContext.SaveAsync();
return(true);
}
}
}
return(false);
}
private static async Task <SubscriptionResponse> ProcessSubscription(BitcornContext dbContext, SubscriptionResponse output, SubRequest subRequest, Subscription subInfo, SubscriptionTier requestedTierInfo, User user)
{
decimal cost = 0;
//if tier usdt cost has been initialized, the corn cost has to be calculated
if (requestedTierInfo.CostUsdt != null && requestedTierInfo.CostUsdt > 0)
{
cost = await CalculateUsdtToCornCost(dbContext, requestedTierInfo);
}
// check if cost is initialized properly
else if (requestedTierInfo.CostCorn != null && requestedTierInfo.CostCorn > 0)
{
cost = requestedTierInfo.CostCorn.Value;
}
else
{
throw new ArgumentException($"Invalid cost setting on subscription tier id:{requestedTierInfo.SubscriptionId}");
}
//set the amount that will be removed from subscriber to the response object
output.Cost = cost;
//initialize array of existing subscriptions
UserSubcriptionTierInfo[] existingSubscriptions = new UserSubcriptionTierInfo[0];
if (user != null)
{
//set data to existing subscriptions array
existingSubscriptions = await GetUserSubscriptions(dbContext, user)
.Where(t => t.SubscriptionTier.SubscriptionId == subInfo.SubscriptionId).ToArrayAsync();
}
//initialize reference to existing subtierinfo
UserSubcriptionTierInfo existingSubscription = null;
//initialize current substate
var subState = SubscriptionState.None;
//if any subscriptions were found
if (existingSubscriptions.Any())
{
//set existing subtierinfo
existingSubscription = existingSubscriptions[0];
//if sub has expired, set substate to expired
if (subInfo.HasExpired(existingSubscription.UserSubscription))
{
subState = SubscriptionState.Expired;
}
//if existing sub has not expired, but the tier is below, set subState to TierDown
else if (existingSubscription.SubscriptionTier.Tier < requestedTierInfo.Tier)
{
subState = SubscriptionState.TierDown;
}
//else, the user is subscribed
else
{
subState = SubscriptionState.Subscribed;
}
}
//initialize reference to usersubscription & tx request
UserSubscription sub = null;
TxRequest txRequest = null;
//if current user sub state is not subscribed & the client confirmed the cost to be equal to the cost amount, attempt to subscribe
var costDiff = Math.Abs(subRequest.Amount - cost);
if (subState != SubscriptionState.Subscribed && costDiff <= 100000)//subRequest.Amount == cost)
{
//initialize recipient of the transaction
string[] to = new string[1];
//default to bitcornhub if no subscription owner has been set
int recipientId = TxUtils.BitcornHubPK;
//if subscription owner is set, overwrite bitcornhub
if (subInfo.OwnerUserId != null && subInfo.OwnerUserId > 0)
{
recipientId = subInfo.OwnerUserId.Value;
}
to[0] = $"userid|{recipientId}";
//initialize tx request
txRequest = new TxRequest(user, cost, subRequest.Platform, "$sub", to);
//prepare transaction for saving
var processInfo = await TxUtils.ProcessRequest(txRequest, dbContext);
var transactions = processInfo.Transactions;
if (transactions != null && transactions.Length > 0)
{
StringBuilder sql = new StringBuilder();
//check if transaction can be executed
if (processInfo.WriteTransactionOutput(sql))
{
//transaction is ready to be saved
switch (subState)
{
case SubscriptionState.None:
//user was previously not subscribed, create instance of usersubscription and point it to the user
sub = new UserSubscription();
sub.SubscriptionId = subInfo.SubscriptionId;
sub.SubscriptionTierId = requestedTierInfo.SubscriptionTierId;
sub.UserId = user.UserId;
sub.FirstSubDate = DateTime.Now;
sub.SubCount = 1;
dbContext.UserSubscription.Add(sub);
break;
case SubscriptionState.TierDown:
case SubscriptionState.Expired:
//previous subscription was found, update subscription tier
existingSubscription.UserSubscription.SubscriptionTierId = requestedTierInfo.SubscriptionTierId;
existingSubscription.UserSubscription.SubCount += 1;
sub = existingSubscription.UserSubscription;
break;
default:
break;
}
//set subscription date to now
sub.LastSubDate = DateTime.Now;
await DbOperations.ExecuteSqlRawAsync(dbContext, sql.ToString());
await dbContext.SaveAsync(IsolationLevel.RepeatableRead);
//create subtx that will link user, corntx and usersubscription together
var subTx = new SubTx();
subTx.UserId = user.UserId;
subTx.SubTxId = transactions[0].TxId.Value;
subTx.UserSubscriptionId = sub.UserSubscriptionId;
dbContext.SubTx.Add(subTx);
//if user was not subscribed before, attempt to share the payment with a referrer
if (!await TrySharePaymentWithReferrer(dbContext, output, subRequest, subInfo, requestedTierInfo, user, recipientId, cost, subState, subTx))
{
await dbContext.SaveAsync();
}
subState = SubscriptionState.Subscribed;
}
//append receipt object with what client requested
await TxUtils.AppendTxs(transactions, dbContext, subRequest.Columns);
var tx = transactions[0];
output.TxId = tx.TxId;
output.User = tx.From;
}
}
//couldn't process transaction
if (txRequest == null)
{
//fill out response object
await PopuplateUserResponse(dbContext, subRequest, output, user);
if (existingSubscription != null)
{
sub = existingSubscription.UserSubscription;
}
}
if (subState == SubscriptionState.Subscribed && sub != null)
{
var end = output.SubscriptionEndTime = sub.LastSubDate.Value.AddDays(subInfo.Duration);
//calculate days left
output.DaysLeft = Math.Ceiling((end.Value - DateTime.Now).TotalDays);
//setup sub info
output.UserSubscriptionInfo = await GetUserSubscriptions(dbContext, user)
.Where(t => t.SubscriptionTier.SubscriptionId == subInfo.SubscriptionId).FirstOrDefaultAsync();
}
return(output);
}
