/// <summary>
/// Reverses the processing of a Splitwise transaction. Meaning that the Splitwise account balances are updated
/// if needed.
/// </summary>
/// <param name="transaction">The Splitwise transaction.</param>
private void Revert(SplitwiseTransactionEntity transaction)
{
transaction.VerifyProcessable();
var splitwiseAccount = this.Context.Accounts.GetSplitwiseEntity();
var(historicalEntriesToEdit, _) =
this.GetBalanceEntriesToEdit(splitwiseAccount.Id, transaction.Date);
var mutationAmount = transaction.GetSplitwiseAccountDifference();
foreach (var entry in historicalEntriesToEdit)
{
entry.Balance -= mutationAmount;
}
}
/// <summary>
/// Processes a Splitwise transaction. Meaning that the Splitwise account balances are updated if needed.
/// </summary>
/// <param name="transaction">The Splitwise transaction.</param>
/// <param name="addedDailyBalances">The daily balances that were already added. This is needed since the
/// context does not contain already added entities, resulting in possible double daily balances which results
/// in an error.</param>
private void Process(
SplitwiseTransactionEntity transaction, List <DailyBalanceEntity> addedDailyBalances, TransactionType type)
{
transaction.VerifyProcessable();
var splitwiseAccount = this.Context.Accounts.GetSplitwiseEntity();
var(historicalEntriesToEdit, newHistoricalEntry) =
this.GetBalanceEntriesToEdit(splitwiseAccount.Id, transaction.Date, addedDailyBalances);
if (newHistoricalEntry.IsSome)
{
addedDailyBalances.Add(newHistoricalEntry.Value);
}
var mutationAmount = transaction.GetSplitwiseAccountDifference();
foreach (var entry in historicalEntriesToEdit)
{
entry.Balance += mutationAmount;
}
}