[#122] Add converter interface in balance and neofs processors

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/innerring/processors/balance/process_assets.go

@@ -17,7 +17,7 @@ func (bp *Processor) processLock(lock *balanceEvent.Lock) {
 	err := invoke.CashOutCheque(bp.mainnetClient, bp.neofsContract,
 		&invoke.ChequeParams{
 			ID:          lock.ID(),
-			Amount:      lock.Amount() / 1_0000_0000, // Fixed16 to Fixed8
+			Amount:      bp.converter.ToFixed8(lock.Amount()),
 			User:        lock.User(),
 			LockAccount: lock.LockAccount(),
 		})

pkg/innerring/processors/balance/processor.go

@@ -16,6 +16,11 @@ type (
 		IsActive() bool
 	}
 
+	// PrecisionConverter converts balance amount values.
+	PrecisionConverter interface {
+		ToFixed8(int64) int64
+	}
+
 	// Processor of events produced by balance contract in morph chain.
 	Processor struct {
 		log             *zap.Logger
@@ -24,6 +29,7 @@ type (
 		balanceContract util.Uint160
 		mainnetClient   *client.Client
 		activeState     ActiveState
+		converter       PrecisionConverter
 	}
 
 	// Params of the processor constructor.
@@ -34,6 +40,7 @@ type (
 		BalanceContract util.Uint160
 		MainnetClient   *client.Client
 		ActiveState     ActiveState
+		Converter       PrecisionConverter
 	}
 )
 
@@ -50,6 +57,8 @@ func New(p *Params) (*Processor, error) {
 		return nil, errors.New("ir/balance: neo:mainnet client is not set")
 	case p.ActiveState == nil:
 		return nil, errors.New("ir/balance: global state is not set")
+	case p.Converter == nil:
+		return nil, errors.New("ir/balance: balance precision converter is not set")
 	}
 
 	p.Log.Debug("balance worker pool", zap.Int("size", p.PoolSize))
@@ -66,6 +75,7 @@ func New(p *Params) (*Processor, error) {
 		balanceContract: p.BalanceContract,
 		mainnetClient:   p.MainnetClient,
 		activeState:     p.ActiveState,
+		converter:       p.Converter,
 	}, nil
 }
 

pkg/innerring/processors/neofs/process_assets.go

@@ -27,7 +27,7 @@ func (np *Processor) processDeposit(deposit *neofsEvent.Deposit) {
 	err := invoke.Mint(np.morphClient, np.balanceContract,
 		&invoke.MintBurnParams{
 			ScriptHash: deposit.To().BytesBE(),
-			Amount:     deposit.Amount() * 1_0000_0000, // from Fixed8 to Fixed16
+			Amount:     np.converter.ToBalancePrecision(deposit.Amount()),
 			Comment:    append([]byte(txLogPrefix), deposit.ID()...),
 		})
 	if err != nil {
@@ -69,7 +69,7 @@ func (np *Processor) processWithdraw(withdraw *neofsEvent.Withdraw) {
 			ID:          withdraw.ID(),
 			User:        withdraw.User(),
 			LockAccount: lock,
-			Amount:      withdraw.Amount() * 1_0000_0000, // from Fixed8 to Fixed16
+			Amount:      np.converter.ToBalancePrecision(withdraw.Amount()),
 			Until:       curEpoch + lockAccountLifetime,
 		})
 	if err != nil {
@@ -88,7 +88,7 @@ func (np *Processor) processCheque(cheque *neofsEvent.Cheque) {
 	err := invoke.Burn(np.morphClient, np.balanceContract,
 		&invoke.MintBurnParams{
 			ScriptHash: cheque.LockAccount().BytesBE(),
-			Amount:     cheque.Amount() * 1_0000_0000, // from Fixed8 to Fixed16
+			Amount:     np.converter.ToBalancePrecision(cheque.Amount()),
 			Comment:    append([]byte(txLogPrefix), cheque.ID()...),
 		})
 	if err != nil {

pkg/innerring/processors/neofs/processor.go

@@ -21,6 +21,11 @@ type (
 		IsActive() bool
 	}
 
+	// PrecisionConverter converts balance amount values.
+	PrecisionConverter interface {
+		ToBalancePrecision(int64) int64
+	}
+
 	// Processor of events produced by neofs contract in main net.
 	Processor struct {
 		log             *zap.Logger
@@ -31,6 +36,7 @@ type (
 		morphClient     *client.Client
 		epochState      EpochState
 		activeState     ActiveState
+		converter       PrecisionConverter
 	}
 
 	// Params of the processor constructor.
@@ -43,6 +49,7 @@ type (
 		MorphClient     *client.Client
 		EpochState      EpochState
 		ActiveState     ActiveState
+		Converter       PrecisionConverter
 	}
 )
 
@@ -65,6 +72,8 @@ func New(p *Params) (*Processor, error) {
 		return nil, errors.New("ir/neofs: global state is not set")
 	case p.ActiveState == nil:
 		return nil, errors.New("ir/neofs: global state is not set")
+	case p.Converter == nil:
+		return nil, errors.New("ir/neofs: balance precision converter is not set")
 	}
 
 	p.Log.Debug("neofs worker pool", zap.Int("size", p.PoolSize))
@@ -83,6 +92,7 @@ func New(p *Params) (*Processor, error) {
 		morphClient:     p.MorphClient,
 		epochState:      p.EpochState,
 		activeState:     p.ActiveState,
+		converter:       p.Converter,
 	}, nil
 }