rpc: minConfs and spendUnconfirmed for EstimateFee

rpcserver.go

@@ -975,7 +975,7 @@ func (r *rpcServer) sendCoinsOnChain(paymentMap map[string]int64,
 	// We first do a dry run, to sanity check we won't spend our wallet
 	// balance below the reserved amount.
 	authoredTx, err := r.server.cc.Wallet.CreateSimpleTx(
-		outputs, feeRate, true,
+		outputs, feeRate, minConfs, true,
 	)
 	if err != nil {
 		return nil, err
@@ -1073,12 +1073,21 @@ func (r *rpcServer) EstimateFee(ctx context.Context,
 		return nil, err
 	}
 
+	// Then, we'll extract the minimum number of confirmations that each
+	// output we use to fund the transaction should satisfy.
+	minConfs, err := lnrpc.ExtractMinConfs(
+		in.GetMinConfs(), in.GetSpendUnconfirmed(),
+	)
+	if err != nil {
+		return nil, err
+	}
+
 	// We will ask the wallet to create a tx using this fee rate. We set
 	// dryRun=true to avoid inflating the change addresses in the db.
 	var tx *txauthor.AuthoredTx
 	wallet := r.server.cc.Wallet
 	err = wallet.WithCoinSelectLock(func() error {
-		tx, err = wallet.CreateSimpleTx(outputs, feePerKw, true)
+		tx, err = wallet.CreateSimpleTx(outputs, feePerKw, minConfs, true)
 		return err
 	})
 	if err != nil {