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package nostr
// Event kind constants as defined in NIP-01 and related NIPs.
const (
KindMetadata = 0
KindTextNote = 1
KindContactList = 3
KindEncryptedDM = 4
KindDeletion = 5
KindRepost = 6
KindReaction = 7
)
// IsRegular returns true if the kind is a regular event (stored, not replaced).
// Regular events: 1000 <= kind < 10000 or kind in {0,1,2,...} except replaceable ones.
func IsRegular(kind int) bool {
if kind == KindMetadata || kind == KindContactList {
return false
}
if kind >= 10000 && kind < 20000 {
return false // replaceable
}
if kind >= 20000 && kind < 30000 {
return false // ephemeral
}
if kind >= 30000 && kind < 40000 {
return false // addressable
}
return true
}
// IsReplaceable returns true if the kind is replaceable (NIP-01).
// Replaceable events: 10000 <= kind < 20000, or kind 0 (metadata) or kind 3 (contact list).
func IsReplaceable(kind int) bool {
if kind == KindMetadata || kind == KindContactList {
return true
}
return kind >= 10000 && kind < 20000
}
// IsEphemeral returns true if the kind is ephemeral (not stored).
// Ephemeral events: 20000 <= kind < 30000.
func IsEphemeral(kind int) bool {
return kind >= 20000 && kind < 30000
}
// IsAddressable returns true if the kind is addressable (parameterized replaceable).
// Addressable events: 30000 <= kind < 40000.
func IsAddressable(kind int) bool {
return kind >= 30000 && kind < 40000
}
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