nws/exit/nostr.go

package exit

import (
	"context"
	"log/slog"

	"github.com/nbd-wtf/go-nostr"
)

func (e *Exit) announceExitNode(ctx context.Context) error {
	if !e.config.Public {
		return nil
	}
	// create a event
	event := nostr.Event{
		PubKey:    e.publicKey,
		CreatedAt: nostr.Now(),
		Kind:      nostr.KindTextNote,
		Content:   "",
		Tags:      nostr.Tags{nostr.Tag{"n", "nws"}},
	}
	err := event.Sign(e.config.NostrPrivateKey)
	if err != nil {
		return err
	}
	// publish the event
	for _, relay := range e.relays {
		err = relay.Publish(ctx, event)
		if err != nil {
			slog.Error("could not publish event", "error", err)
			// do not return here, try to publish the event to other relays
		}
	}
	return nil
}

func (e *Exit) DeleteEvent(ctx context.Context, ev *nostr.Event) error {
	for _, responseRelay := range e.config.NostrRelays {
		var relay *nostr.Relay
		relay, err := e.pool.EnsureRelay(responseRelay)
		if err != nil {
			return err
		}
		event := nostr.Event{
			CreatedAt: nostr.Now(),
			PubKey:    e.publicKey,
			Kind:      nostr.KindDeletion,
			Tags: nostr.Tags{
				nostr.Tag{"e", ev.ID},
			},
		}
		err = event.Sign(e.config.NostrPrivateKey)
		err = relay.Publish(ctx, event)
		if err != nil {
			return err
		}
	}
	return nil
}