[#732] neofs-adm: fetch single accounts during the initialization

Simplify code and perform error checking before the actual work.

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

cmd/neofs-adm/internal/modules/morph/initialize.go

@@ -26,6 +26,8 @@ type initializeContext struct {
 	// ConsensusAcc is used for retrieving committee address and verification script.
 	ConsensusAcc *wallet.Account
 	Wallets      []*wallet.Wallet
+	// Accounts contains simple signature accounts in the same order as in Wallets.
+	Accounts     []*wallet.Account
 	Hashes       []util.Uint256
 	WaitDuration time.Duration
 	PollInterval time.Duration
@@ -134,11 +136,21 @@ func newInitializeContext(cmd *cobra.Command, v *viper.Viper) (*initializeContex
 		nativeHashes[ns[i].Manifest.Name] = ns[i].Hash
 	}
 
+	accounts := make([]*wallet.Account, len(wallets))
+	for i, w := range wallets {
+		acc, err := getWalletAccount(w, singleAccountName)
+		if err != nil {
+			return nil, fmt.Errorf("wallet %s is invalid (no single account): %w", w.Path(), err)
+		}
+		accounts[i] = acc
+	}
+
 	initCtx := &initializeContext{
 		Client:       c,
 		ConsensusAcc: consensusAcc,
 		CommitteeAcc: committeeAcc,
 		Wallets:      wallets,
+		Accounts:     accounts,
 		WaitDuration: time.Second * 30,
 		PollInterval: time.Second,
 		Command:      cmd,

cmd/neofs-adm/internal/modules/morph/initialize_deploy.go

@@ -122,12 +122,7 @@ func (c *initializeContext) deployContracts() error {
 	var keysParam []smartcontract.Parameter
 
 	// alphabet contracts should be deployed by individual nodes to get different hashes.
-	for i, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for i, acc := range c.Accounts {
 		cs, err := c.readContract(alphabetContract)
 		if err != nil {
 			return err

cmd/neofs-adm/internal/modules/morph/initialize_nns.go

@@ -45,12 +45,7 @@ func (c *initializeContext) setNNS() error {
 	if err != nil {
 		return fmt.Errorf("can't read alphabet contract: %w", err)
 	}
-	for i, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for i, acc := range c.Accounts {
 		alphaCs.Hash = state.CreateContractHash(acc.Contract.ScriptHash(), alphaCs.NEF.Checksum, alphaCs.Manifest.Name)
 
 		domain := getAlphabetNNSDomain(i)

cmd/neofs-adm/internal/modules/morph/initialize_register.go

@@ -41,12 +41,7 @@ func (c *initializeContext) registerCandidates() error {
 	}
 
 	sysGas := regPrice + native.GASFactor // + 1 GAS
-	for _, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for _, acc := range c.Accounts {
 		w := io.NewBufBinWriter()
 		emit.AppCall(w.BinWriter, neoHash, "registerCandidate", callflag.States, acc.PrivateKey().PublicKey().Bytes())
 		emit.Opcodes(w.BinWriter, opcode.ASSERT)
@@ -84,12 +79,7 @@ func (c *initializeContext) transferNEOToAlphabetContracts() error {
 	amount := initialAlphabetNEOAmount / len(c.Wallets)
 
 	bw := io.NewBufBinWriter()
-	for _, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for _, acc := range c.Accounts {
 		h := state.CreateContractHash(acc.Contract.ScriptHash(), cs.NEF.Checksum, cs.Manifest.Name)
 		emit.AppCall(bw.BinWriter, neoHash, "transfer", callflag.All,
 			c.CommitteeAcc.Contract.ScriptHash(), h, int64(amount), nil)

cmd/neofs-adm/internal/modules/morph/initialize_roles.go

@@ -19,12 +19,7 @@ func (c *initializeContext) setNotaryAndAlphabetNodes() error {
 	designateHash := c.nativeHash(nativenames.Designation)
 
 	var pubs []interface{}
-	for _, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for _, acc := range c.Accounts {
 		pubs = append(pubs, acc.PrivateKey().PublicKey().Bytes())
 	}
 

cmd/neofs-adm/internal/modules/morph/initialize_transfer.go

@@ -32,12 +32,7 @@ func (c *initializeContext) transferFunds() error {
 	neoHash := c.nativeHash(nativenames.Neo)
 
 	var transfers []client.TransferTarget
-	for _, w := range c.Wallets {
-		acc, err := getWalletAccount(w, singleAccountName)
-		if err != nil {
-			return err
-		}
-
+	for _, acc := range c.Accounts {
 		to := acc.Contract.ScriptHash()
 		transfers = append(transfers,
 			client.TransferTarget{
@@ -82,11 +77,7 @@ func (c *initializeContext) transferFunds() error {
 
 func (c *initializeContext) transferFundsFinished() (bool, error) {
 	gasHash := c.nativeHash(nativenames.Gas)
-
-	acc, err := getWalletAccount(c.Wallets[0], singleAccountName)
-	if err != nil {
-		return false, err
-	}
+	acc := c.Accounts[0]
 
 	res, err := c.Client.NEP17BalanceOf(gasHash, acc.Contract.ScriptHash())
 	return res > initialAlphabetGASAmount/2, err