[#625] client/balance: remove intermediate wrapper

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/morph/client/balance/lock.go

@@ -0,0 +1,52 @@
+package balance
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neofs-node/pkg/morph/client"
+)
+
+// LockPrm groups parameters of Lock operation.
+type LockPrm struct {
+	id       []byte
+	user     util.Uint160
+	lock     util.Uint160
+	amount   int64
+	dueEpoch int64
+
+	client.InvokePrmOptional
+}
+
+// SetID sets ID.
+func (l *LockPrm) SetID(id []byte) {
+	l.id = id
+}
+
+// SetUser set user.
+func (l *LockPrm) SetUser(user util.Uint160) {
+	l.user = user
+}
+
+// SetLock sets lock.
+func (l *LockPrm) SetLock(lock util.Uint160) {
+	l.lock = lock
+}
+
+// SetAmount sets amount.
+func (l *LockPrm) SetAmount(amount int64) {
+	l.amount = amount
+}
+
+// SetDueEpoch sets end of the lock.
+func (l *LockPrm) SetDueEpoch(dueEpoch int64) {
+	l.dueEpoch = dueEpoch
+}
+
+// Lock locks fund on the user account.
+func (c *Client) Lock(p LockPrm) error {
+	prm := client.InvokePrm{}
+	prm.SetMethod(lockMethod)
+	prm.SetArgs(p.id, p.user.BytesBE(), p.lock.BytesBE(), p.amount, p.dueEpoch)
+	prm.InvokePrmOptional = p.InvokePrmOptional
+
+	return c.client.Invoke(prm)
+}