72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package wallet
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import (
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"encoding/hex"
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"github.com/btcsuite/btcd/btcjson"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btcutil"
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"github.com/btcsuite/btcutil/coinset"
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)
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// lnCoin...
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// to adhere to the coinset.Coin interface
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type lnCoin struct {
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hash *wire.ShaHash
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index uint32
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value btcutil.Amount
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pkScript []byte
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numConfs int64
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valueAge int64
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}
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func (l *lnCoin) Hash() *wire.ShaHash { return l.hash }
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func (l *lnCoin) Index() uint32 { return l.index }
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func (l *lnCoin) Value() btcutil.Amount { return l.value }
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func (l *lnCoin) PkScript() []byte { return l.pkScript }
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func (l *lnCoin) NumConfs() int64 { return l.numConfs }
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func (l *lnCoin) ValueAge() int64 { return l.valueAge }
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// Ensure lnCoin adheres to the coinset.Coin interface.
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var _ coinset.Coin = (*lnCoin)(nil)
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// newLnCoin...
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func newLnCoin(output *btcjson.ListUnspentResult) (coinset.Coin, error) {
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txid, err := wire.NewShaHashFromStr(output.TxID)
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if err != nil {
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return nil, err
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}
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pkScript, err := hex.DecodeString(output.ScriptPubKey)
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if err != nil {
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return nil, err
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}
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return &lnCoin{
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hash: txid,
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// btcjson.ListUnspentResult shows the amount in BTC,
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// translate into Satoshi so coin selection can work properly.
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value: btcutil.Amount(output.Amount * 1e8),
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index: output.Vout,
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pkScript: pkScript,
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numConfs: output.Confirmations,
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// TODO(roasbeef): output.Amount should be a int64, damn json-RPC :/
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valueAge: output.Confirmations * int64(output.Amount),
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}, nil
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}
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// outputsToCoins...
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func outputsToCoins(outputs []*btcjson.ListUnspentResult) ([]coinset.Coin, error) {
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coins := make([]coinset.Coin, len(outputs))
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for i, output := range outputs {
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coin, err := newLnCoin(output)
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if err != nil {
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return nil, err
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}
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coins[i] = coin
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}
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return coins, nil
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}
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