getUnspentOutputsForTransaction function

(Decimal, List<SafeUtxoOutput>) getUnspentOutputsForTransaction(List<SafeUtxoOutput> outputs, Decimal desiredAmount)

Get unspent utxos for recipients.

return param1: the amount that we need to get more utxos

Implementation

(Decimal, List<SafeUtxoOutput>) getUnspentOutputsForTransaction(
  List<SafeUtxoOutput> outputs,
  Decimal desiredAmount,
) {
  var candidatesAmount = Decimal.zero;
  final candidates = <SafeUtxoOutput>[];
  for (final o in outputs) {
    if (o.state != OutputState.unspent.name) {
      continue;
    }
    candidates.add(o);
    candidatesAmount += Decimal.parse(o.amount);

    if (candidatesAmount >= desiredAmount) {
      // we get enough utxos
      break;
    }
  }
  return (candidatesAmount, candidates);
}