package balance import ( "fmt" "github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neofs-node/pkg/morph/client" "github.com/nspcc-dev/neofs-node/pkg/morph/event" ) // Lock structure of balance.Lock notification from morph chain. type Lock struct { id []byte user util.Uint160 lock util.Uint160 amount int64 // Fixed16 until int64 // txHash is used in notary environmental // for calculating unique but same for // all notification receivers values. txHash util.Uint256 } // MorphEvent implements Neo:Morph Event interface. func (Lock) MorphEvent() {} // ID is a withdraw transaction hash. func (l Lock) ID() []byte { return l.id } // User returns withdraw receiver script hash from main net. func (l Lock) User() util.Uint160 { return l.user } // LockAccount return script hash for balance contract wallet. func (l Lock) LockAccount() util.Uint160 { return l.lock } // Amount of the locked assets. func (l Lock) Amount() int64 { return l.amount } // Until is an epoch before locked account exists. func (l Lock) Until() int64 { return l.until } // TxHash returns hash of the TX with lock // notification. func (l Lock) TxHash() util.Uint256 { return l.txHash } // ParseLock from notification into lock structure. func ParseLock(e *subscriptions.NotificationEvent) (event.Event, error) { var ( ev Lock err error ) params, err := event.ParseStackArray(e) if err != nil { return nil, fmt.Errorf("could not parse stack items from notify event: %w", err) } if ln := len(params); ln != 5 { return nil, event.WrongNumberOfParameters(5, ln) } // parse id ev.id, err = client.BytesFromStackItem(params[0]) if err != nil { return nil, fmt.Errorf("could not get lock id: %w", err) } // parse user user, err := client.BytesFromStackItem(params[1]) if err != nil { return nil, fmt.Errorf("could not get lock user value: %w", err) } ev.user, err = util.Uint160DecodeBytesBE(user) if err != nil { return nil, fmt.Errorf("could not convert lock user value to uint160: %w", err) } // parse lock account lock, err := client.BytesFromStackItem(params[2]) if err != nil { return nil, fmt.Errorf("could not get lock account value: %w", err) } ev.lock, err = util.Uint160DecodeBytesBE(lock) if err != nil { return nil, fmt.Errorf("could not convert lock account value to uint160: %w", err) } // parse amount ev.amount, err = client.IntFromStackItem(params[3]) if err != nil { return nil, fmt.Errorf("could not get lock amount: %w", err) } // parse until deadline ev.until, err = client.IntFromStackItem(params[4]) if err != nil { return nil, fmt.Errorf("could not get lock deadline: %w", err) } ev.txHash = e.Container return ev, nil }