/// <summary>
/// Examines the ledger book's most recent reconciliation looking for transactions waiting to be matched to
/// transactions imported in the current month.
/// If any transactions are found, the statement is then examined to see if the transactions appear, if they do not a
/// new <see cref="ValidationWarningException" />
/// is thrown; otherwise the method returns.
/// </summary>
public void ValidateAgainstOrphanedAutoMatchingTransactions(LedgerBook ledgerBook, StatementModel statement)
{
if (ledgerBook == null)
{
throw new ArgumentNullException(nameof(ledgerBook));
}
if (statement == null)
{
throw new ArgumentNullException(nameof(statement));
}
var lastLine = ledgerBook.Reconciliations.FirstOrDefault();
if (lastLine == null)
{
return;
}
List <LedgerTransaction> unmatchedTxns = lastLine.Entries
.SelectMany(e => e.Transactions)
.Where(
t =>
!string.IsNullOrWhiteSpace(t.AutoMatchingReference) &&
!t.AutoMatchingReference.StartsWith(ReconciliationBuilder.MatchedPrefix,
StringComparison.Ordinal))
.ToList();
if (unmatchedTxns.None())
{
return;
}
List <Transaction> statementSubSet = statement.AllTransactions.Where(t => t.Date >= lastLine.Date).ToList();
foreach (var ledgerTransaction in unmatchedTxns)
{
IEnumerable <Transaction> statementTxns = ReconciliationBuilder.TransactionsToAutoMatch(statementSubSet,
ledgerTransaction.AutoMatchingReference);
if (statementTxns.None())
{
this.logger.LogWarning(
l =>
l.Format(
"There appears to be some transactions from last month that should be auto-matched to a statement transactions, but no matching statement transactions were found. {0}",
ledgerTransaction));
throw new ValidationWarningException(
string.Format(
CultureInfo.CurrentCulture,
"There appears to be some transactions from last month that should be auto-matched to a statement transactions, but no matching statement transactions were found.\nHave you forgotten to do a transfer?\nTransaction ID:{0} Ref:{1} Amount:{2:C}",
ledgerTransaction.Id,
ledgerTransaction.AutoMatchingReference,
ledgerTransaction.Amount))
{
Source = "1"
};
}
}
}
private void PreReconciliationValidation(LedgerBook ledgerBook, DateTime reconciliationDate, StatementModel statement)
{
var messages = new StringBuilder();
if (!ledgerBook.Validate(messages))
{
throw new InvalidOperationException("Ledger book is currently in an invalid state. Cannot add new entries.\n" + messages);
}
if (statement == null)
{
return;
}
var startDate = ReconciliationBuilder.CalculateDateForReconcile(ledgerBook, reconciliationDate);
ValidateDates(ledgerBook, startDate, reconciliationDate, statement);
ValidateAgainstUncategorisedTransactions(startDate, reconciliationDate, statement);
ValidateAgainstOrphanedAutoMatchingTransactions(ledgerBook, statement);
ValidateAgainstMissingTransactions(reconciliationDate, statement);
}
