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some mildly useful helpers for pointers in general.

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This commit is contained in:
fiatjaf 2025-01-01 15:04:54 -03:00
parent acf63fa7cd
commit 159e5d21e6
1 changed files with 42 additions and 0 deletions
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42
pointers.go
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@ -1,10 +1,28 @@
package nostr
import (
"fmt"
)
type Pointer interface {
AsTagReference() string
AsTag() Tag
}
type ProfilePointer struct {
PublicKey string `json:"pubkey"`
Relays []string `json:"relays,omitempty"`
}
func (ep ProfilePointer) AsTagReference() string { return ep.PublicKey }
func (ep ProfilePointer) AsTag() Tag {
if len(ep.Relays) > 0 {
return Tag{"p", ep.PublicKey, ep.Relays[0]}
}
return Tag{"p", ep.PublicKey}
}
type EventPointer struct {
ID string `json:"id"`
Relays []string `json:"relays,omitempty"`
@ -12,9 +30,33 @@ type EventPointer struct {
Kind int `json:"kind,omitempty"`
}
func (ep EventPointer) AsTagReference() string { return ep.ID }
func (ep EventPointer) AsTag() Tag {
if len(ep.Relays) > 0 {
if ep.Author != "" {
return Tag{"e", ep.ID, ep.Relays[0], ep.Author}
} else {
return Tag{"e", ep.ID, ep.Relays[0]}
}
}
return Tag{"e", ep.ID}
}
type EntityPointer struct {
PublicKey string `json:"pubkey"`
Kind int `json:"kind,omitempty"`
Identifier string `json:"identifier,omitempty"`
Relays []string `json:"relays,omitempty"`
}
func (ep EntityPointer) AsTagReference() string {
return fmt.Sprintf("%d:%s:%s", ep.Kind, ep.PublicKey, ep.Identifier)
}
func (ep EntityPointer) AsTag() Tag {
if len(ep.Relays) > 0 {
return Tag{"a", ep.AsTagReference(), ep.Relays[0]}
}
return Tag{"a", ep.AsTagReference()}
}