rounding in virtual decay transaction, pass hold available amount to virtual decay creation

backend/src/graphql/resolver/TransactionResolver.ts

@@ -201,7 +201,13 @@ export class TransactionResolver {
       // The virtual decay is always on the booked amount, not including the generated, not yet booked links,
       // since the decay is substantially different when the amount is less
       transactions.push(
-        virtualDecayTransaction(lastTransaction.balance, lastTransaction.balanceDate, now, self),
+        virtualDecayTransaction(
+          lastTransaction.balance,
+          lastTransaction.balanceDate,
+          now,
+          self,
+          sumHoldAvailableAmount,
+        ),
       )
       // virtual transaction for pending transaction-links sum
       if (sumHoldAvailableAmount.greaterThan(0)) {

backend/src/util/virtualTransactions.ts

@@ -59,6 +59,7 @@ const virtualDecayTransaction = (
   balanceDate: Date,
   time: Date = new Date(),
   user: User,
+  holdAvailabeAmount: Decimal,
 ): Transaction => {
   const decay = calculateDecay(balance, balanceDate, time)
   // const balance = decay.balance.minus(lastTransaction.balance)
@@ -67,10 +68,12 @@ const virtualDecayTransaction = (
     userId: -1,
     previous: -1,
     typeId: TransactionTypeId.DECAY,
-    amount: decay.decay ? decay.decay : new Decimal(0), // new Decimal(0), // this kinda is wrong, but helps with the frontend query
-    balance: decay.balance,
+    amount: decay.decay ? decay.decay.toDecimalPlaces(2, Decimal.ROUND_FLOOR) : new Decimal(0), // new Decimal(0), // this kinda is wrong, but helps with the frontend query
+    balance: decay.balance
+      .minus(holdAvailabeAmount.toString())
+      .toDecimalPlaces(2, Decimal.ROUND_DOWN),
     balanceDate: time,
-    decay: decay.decay ? decay.decay : new Decimal(0),
+    decay: decay.decay ? decay.decay.toDecimalPlaces(2, Decimal.ROUND_FLOOR) : new Decimal(0),
     decayStart: decay.start,
     memo: '',
     creationDate: null,