package container import ( "fmt" "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" "github.com/nspcc-dev/neofs-node/pkg/morph/client" "github.com/nspcc-dev/neofs-node/pkg/morph/event" ) // StartEstimation structure of container.StartEstimation notification from // morph chain. type StartEstimation struct { epoch uint64 } // StopEstimation structure of container.StopEstimation notification from // morph chain. type StopEstimation struct { epoch uint64 } // MorphEvent implements Neo:Morph Event interface. func (StartEstimation) MorphEvent() {} // MorphEvent implements Neo:Morph Event interface. func (StopEstimation) MorphEvent() {} // Epoch returns epoch value for which to start container size estimation. func (s StartEstimation) Epoch() uint64 { return s.epoch } // Epoch returns epoch value for which to stop container size estimation. func (s StopEstimation) Epoch() uint64 { return s.epoch } // ParseStartEstimation from notification into container event structure. func ParseStartEstimation(params []stackitem.Item) (event.Event, error) { epoch, err := parseEstimation(params) if err != nil { return nil, err } return StartEstimation{epoch: epoch}, nil } // ParseStopEstimation from notification into container event structure. func ParseStopEstimation(params []stackitem.Item) (event.Event, error) { epoch, err := parseEstimation(params) if err != nil { return nil, err } return StopEstimation{epoch: epoch}, nil } func parseEstimation(params []stackitem.Item) (uint64, error) { if ln := len(params); ln != 1 { return 0, event.WrongNumberOfParameters(1, ln) } // parse container epoch, err := client.IntFromStackItem(params[0]) if err != nil { return 0, fmt.Errorf("could not get estimation epoch: %w", err) } return uint64(epoch), nil }