39 lines
891 B
Go
39 lines
891 B
Go
|
package lbrycrd
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/lbryio/lbry.go/extras/errors"
|
||
|
|
|
||
|
|
"github.com/btcsuite/btcd/btcjson"
|
||
|
|
)
|
||
|
|
|
||
|
|
type outputFinder struct {
|
||
|
|
unspent []btcjson.ListUnspentResult
|
||
|
|
lastChecked int
|
||
|
|
}
|
||
|
|
|
||
|
|
func newOutputFinder(unspentResults []btcjson.ListUnspentResult) *outputFinder {
|
||
|
|
return &outputFinder{unspent: unspentResults, lastChecked: -1}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *outputFinder) nextBatch(minAmount float64) ([]btcjson.ListUnspentResult, error) {
|
||
|
|
var batch []btcjson.ListUnspentResult
|
||
|
|
var lbcBatched float64
|
||
|
|
for i, unspent := range f.unspent {
|
||
|
|
if i > f.lastChecked {
|
||
|
|
if unspent.Spendable {
|
||
|
|
batch = append(batch, unspent)
|
||
|
|
lbcBatched = lbcBatched + unspent.Amount
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if lbcBatched >= minAmount {
|
||
|
|
f.lastChecked = i
|
||
|
|
break
|
||
|
|
}
|
||
|
|
if i == len(f.unspent)-1 {
|
||
|
|
return nil, errors.Err("Not enough unspent outputs to spend %d on supports.", minAmount)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return batch, nil
|
||
|
|
}
|