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more conversions.

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This commit is contained in:
fiatjaf
2025-04-15 00:00:03 -03:00
parent f9e4a5efa3
commit 376834cbf9
117 changed files with 450 additions and 1019 deletions
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21
nip77/negentropy/encoding.go
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@@ -3,7 +3,7 @@ package negentropy
import (
"fmt"
"fiatjaf.com/nostrlib"
"fiatjaf.com/nostr"
)
func (n *Negentropy) readTimestamp(reader *StringHexReader) (nostr.Timestamp, error) {
@@ -42,12 +42,12 @@ func (n *Negentropy) readBound(reader *StringHexReader) (Bound, error) {
return Bound{}, fmt.Errorf("failed to decode bound length: %w", err)
}
id, err := reader.ReadString(length * 2)
if err != nil {
pfb := make([]byte, length)
if err := reader.ReadHexBytes(pfb); err != nil {
return Bound{}, fmt.Errorf("failed to read bound id: %w", err)
}
return Bound{Item{timestamp, id}}, nil
return Bound{timestamp, pfb}, nil
}
func (n *Negentropy) writeTimestamp(w *StringHexWriter, timestamp nostr.Timestamp) {
@@ -71,26 +71,25 @@ func (n *Negentropy) writeTimestamp(w *StringHexWriter, timestamp nostr.Timestam
func (n *Negentropy) writeBound(w *StringHexWriter, bound Bound) {
n.writeTimestamp(w, bound.Timestamp)
writeVarInt(w, len(bound.ID)/2)
w.WriteHex(bound.Item.ID)
writeVarInt(w, len(bound.IDPrefix))
w.WriteBytes(bound.IDPrefix)
}
func getMinimalBound(prev, curr Item) Bound {
if curr.Timestamp != prev.Timestamp {
return Bound{Item{curr.Timestamp, ""}}
return Bound{curr.Timestamp, nil}
}
sharedPrefixBytes := 0
for i := 0; i < 32; i += 2 {
if curr.ID[i:i+2] != prev.ID[i:i+2] {
for i := 0; i < 31; i++ {
if curr.ID[i] != prev.ID[i] {
break
}
sharedPrefixBytes++
}
// sharedPrefixBytes + 1 to include the first differing byte, or the entire ID if identical.
return Bound{Item{curr.Timestamp, curr.ID[:(sharedPrefixBytes+1)*2]}}
return Bound{curr.Timestamp, curr.ID[:(sharedPrefixBytes + 1)]}
}
func readVarInt(reader *StringHexReader) (int, error) {