package subnetevents import ( "fmt" "github.com/TrueCloudLab/frostfs-node/pkg/morph/client" "github.com/TrueCloudLab/frostfs-node/pkg/morph/event" "github.com/nspcc-dev/neo-go/pkg/core/state" "github.com/nspcc-dev/neo-go/pkg/util" ) // Delete structures information about the notification generated by Delete method of Subnet contract. type Delete struct { txHash util.Uint256 id []byte } // MorphEvent implements Neo:Morph Event interface. func (Delete) MorphEvent() {} // ID returns identifier of the removed subnet in a binary format of NeoFS API protocol. func (x Delete) ID() []byte { return x.id } // TxHash returns hash of the transaction which thrown the notification event. // Makes sense only in notary environments. func (x Delete) TxHash() util.Uint256 { return x.txHash } // ParseDelete parses the notification about the removal of a subnet which has been thrown // by the appropriate method of the Subnet contract. // // Resulting event is of Delete type. func ParseDelete(e *state.ContainedNotificationEvent) (event.Event, error) { var ( ev Delete err error ) items, err := event.ParseStackArray(e) if err != nil { return nil, fmt.Errorf("parse stack array: %w", err) } const itemNumDelete = 1 if ln := len(items); ln != itemNumDelete { return nil, event.WrongNumberOfParameters(itemNumDelete, ln) } // parse ID ev.id, err = client.BytesFromStackItem(items[0]) if err != nil { return nil, fmt.Errorf("id item: %w", err) } ev.txHash = e.Container return ev, nil }