package balance import ( "errors" "fmt" "github.com/nspcc-dev/neo-go/pkg/util" neofscontract "github.com/nspcc-dev/neofs-node/pkg/morph/client/neofs/wrapper" "github.com/nspcc-dev/neofs-node/pkg/morph/event" balanceEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/balance" "github.com/panjf2000/ants/v2" "go.uber.org/zap" ) type ( // AlphabetState is a callback interface for inner ring global state AlphabetState interface { IsAlphabet() 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 pool *ants.Pool neofsClient *neofscontract.ClientWrapper balanceContract util.Uint160 alphabetState AlphabetState converter PrecisionConverter } // Params of the processor constructor. Params struct { Log *zap.Logger PoolSize int NeoFSClient *neofscontract.ClientWrapper BalanceContract util.Uint160 AlphabetState AlphabetState Converter PrecisionConverter } ) const ( lockNotification = "Lock" ) // New creates balance contract processor instance. func New(p *Params) (*Processor, error) { switch { case p.Log == nil: return nil, errors.New("ir/balance: logger is not set") case p.AlphabetState == 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)) pool, err := ants.NewPool(p.PoolSize, ants.WithNonblocking(true)) if err != nil { return nil, fmt.Errorf("ir/balance: can't create worker pool: %w", err) } return &Processor{ log: p.Log, pool: pool, neofsClient: p.NeoFSClient, balanceContract: p.BalanceContract, alphabetState: p.AlphabetState, converter: p.Converter, }, nil } // ListenerNotificationParsers for the 'event.Listener' event producer. func (bp *Processor) ListenerNotificationParsers() []event.NotificationParserInfo { var parsers []event.NotificationParserInfo // new lock event lock := event.NotificationParserInfo{} lock.SetType(lockNotification) lock.SetScriptHash(bp.balanceContract) lock.SetParser(balanceEvent.ParseLock) parsers = append(parsers, lock) return parsers } // ListenerNotificationHandlers for the 'event.Listener' event producer. func (bp *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo { var handlers []event.NotificationHandlerInfo // lock handler lock := event.NotificationHandlerInfo{} lock.SetType(lockNotification) lock.SetScriptHash(bp.balanceContract) lock.SetHandler(bp.handleLock) handlers = append(handlers, lock) return handlers } // ListenerNotaryParsers for the 'event.Listener' event producer. func (bp *Processor) ListenerNotaryParsers() []event.NotaryParserInfo { return nil } // ListenerNotaryHandlers for the 'event.Listener' event producer. func (bp *Processor) ListenerNotaryHandlers() []event.NotaryHandlerInfo { return nil } // TimersHandlers for the 'Timers' event producer. func (bp *Processor) TimersHandlers() []event.NotificationHandlerInfo { return nil }