[#932] adm: Refactor command morph

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

cmd/frostfs-adm/internal/modules/morph/util/n3client.go

@@ -0,0 +1,121 @@
+package util
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Client represents N3 client interface capable of test-invoking scripts
+// and sending signed transactions to chain.
+type Client interface {
+	invoker.RPCInvoke
+
+	GetBlockCount() (uint32, error)
+	GetNativeContracts() ([]state.NativeContract, error)
+	GetApplicationLog(util.Uint256, *trigger.Type) (*result.ApplicationLog, error)
+	GetVersion() (*result.Version, error)
+	SendRawTransaction(*transaction.Transaction) (util.Uint256, error)
+	GetCommittee() (keys.PublicKeys, error)
+	CalculateNetworkFee(tx *transaction.Transaction) (int64, error)
+}
+
+type HashVUBPair struct {
+	Hash util.Uint256
+	Vub  uint32
+}
+
+type ClientContext struct {
+	Client          Client           // a raw neo-go client OR a local chain implementation
+	CommitteeAct    *actor.Actor     // committee actor with the Global witness scope
+	ReadOnlyInvoker *invoker.Invoker // R/O contract invoker, does not contain any signer
+	SentTxs         []HashVUBPair
+}
+
+func GetN3Client(v *viper.Viper) (Client, error) {
+	// number of opened connections
+	// by neo-go client per one host
+	const (
+		maxConnsPerHost = 10
+		requestTimeout  = time.Second * 10
+	)
+
+	ctx := context.Background()
+	endpoint := v.GetString(EndpointFlag)
+	if endpoint == "" {
+		return nil, errors.New("missing endpoint")
+	}
+	c, err := rpcclient.New(ctx, endpoint, rpcclient.Options{
+		MaxConnsPerHost: maxConnsPerHost,
+		RequestTimeout:  requestTimeout,
+	})
+	if err != nil {
+		return nil, err
+	}
+	if err := c.Init(); err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
+func DefaultClientContext(c Client, committeeAcc *wallet.Account) (*ClientContext, error) {
+	commAct, err := NewActor(c, committeeAcc)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ClientContext{
+		Client:          c,
+		CommitteeAct:    commAct,
+		ReadOnlyInvoker: invoker.New(c, nil),
+	}, nil
+}
+
+func (c *ClientContext) SendTx(tx *transaction.Transaction, cmd *cobra.Command, await bool) error {
+	h, err := c.Client.SendRawTransaction(tx)
+	if err != nil {
+		return err
+	}
+
+	if h != tx.Hash() {
+		return fmt.Errorf("sent and actual tx hashes mismatch:\n\tsent: %v\n\tactual: %v", tx.Hash().StringLE(), h.StringLE())
+	}
+
+	c.SentTxs = append(c.SentTxs, HashVUBPair{Hash: h, Vub: tx.ValidUntilBlock})
+
+	if await {
+		return c.AwaitTx(cmd)
+	}
+	return nil
+}
+
+func (c *ClientContext) AwaitTx(cmd *cobra.Command) error {
+	if len(c.SentTxs) == 0 {
+		return nil
+	}
+
+	if local, ok := c.Client.(*LocalClient); ok {
+		if err := local.putTransactions(); err != nil {
+			return fmt.Errorf("can't persist transactions: %w", err)
+		}
+	}
+
+	err := AwaitTx(cmd, c.Client, c.SentTxs)
+	c.SentTxs = c.SentTxs[:0]
+
+	return err
+}