40 lines
879 B
Go
40 lines
879 B
Go
package bolt
|
|
|
|
import (
|
|
"context"
|
|
"encoding/hex"
|
|
|
|
"github.com/nbd-wtf/go-nostr"
|
|
bolt "go.etcd.io/bbolt"
|
|
"golang.org/x/exp/slices"
|
|
)
|
|
|
|
func (b *BoltBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
|
|
return b.db.Update(func(txn *bolt.Tx) error {
|
|
idPrefix8, _ := hex.DecodeString(evt.ID[0 : 8*2])
|
|
bucket := txn.Bucket(bucketId)
|
|
|
|
// check if we already do not have this
|
|
c := bucket.Cursor()
|
|
key, _ := c.Seek(idPrefix8)
|
|
if key == nil || !slices.Equal(key[0:8], idPrefix8) {
|
|
// already do not have it
|
|
return nil
|
|
}
|
|
|
|
seqb := key[8:]
|
|
if seqb == nil {
|
|
return nil
|
|
}
|
|
|
|
// calculate all index keys we have for this event and delete them
|
|
for _, k := range getIndexKeysForEvent(evt) {
|
|
bucket := txn.Bucket(k.bucket)
|
|
bucket.Delete(append(k.key, seqb...))
|
|
}
|
|
|
|
// delete the raw event
|
|
return txn.Bucket(bucketRaw).Delete(seqb)
|
|
})
|
|
}
|