110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
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package subnetevents
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import (
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/network/payload"
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"github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
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"github.com/nspcc-dev/neofs-node/pkg/morph/event"
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)
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// Delete structures information about the notification generated by Delete method of Subnet contract.
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type Delete struct {
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notaryRequest *payload.P2PNotaryRequest
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txHash util.Uint256
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id []byte
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}
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// MorphEvent implements Neo:Morph Event interface.
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func (Delete) MorphEvent() {}
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// ID returns identifier of the removed subnet in a binary format of NeoFS API protocol.
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func (x Delete) ID() []byte {
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return x.id
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}
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// TxHash returns hash of the transaction which thrown the notification event.
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// Makes sense only in non-notary environments (see NotaryMainTx).
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func (x Delete) TxHash() util.Uint256 {
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return x.txHash
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}
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// NotaryMainTx returns main transaction of the request in the Notary service.
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// Returns nil in non-notary environments.
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func (x Delete) NotaryMainTx() *transaction.Transaction {
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if x.notaryRequest != nil {
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return x.notaryRequest.MainTransaction
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}
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return nil
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}
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const itemNumDelete = 1
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// ParseDelete parses the notification about the removal of a subnet which has been thrown
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// by the appropriate method of the Subnet contract.
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//
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// Resulting event is of Delete type.
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func ParseDelete(e *subscriptions.NotificationEvent) (event.Event, error) {
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var (
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ev Delete
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err error
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)
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items, err := event.ParseStackArray(e)
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if err != nil {
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return nil, fmt.Errorf("parse stack array: %w", err)
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}
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if ln := len(items); ln != itemNumDelete {
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return nil, event.WrongNumberOfParameters(itemNumDelete, ln)
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}
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// parse ID
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ev.id, err = client.BytesFromStackItem(items[0])
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if err != nil {
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return nil, fmt.Errorf("id item: %w", err)
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}
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ev.txHash = e.Container
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return ev, nil
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}
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// ParseNotaryDelete parses the notary notification about the removal of a subnet which has been
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// thrown by the appropriate method of the Subnet contract.
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//
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// Resulting event is of Delete type.
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func ParseNotaryDelete(e event.NotaryEvent) (event.Event, error) {
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var ev Delete
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ev.notaryRequest = e.Raw()
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if ev.notaryRequest == nil {
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panic(fmt.Sprintf("nil %T in notary environment", ev.notaryRequest))
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}
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var (
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err error
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prms = e.Params()
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)
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if ln := len(prms); ln != itemNumDelete {
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return nil, event.WrongNumberOfParameters(itemNumDelete, ln)
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}
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ev.id, err = event.BytesFromOpcode(prms[0])
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if err != nil {
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return nil, fmt.Errorf("id param: %w", err)
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}
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ev.notaryRequest = e.Raw()
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return ev, nil
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}
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