nip19/nip49: remove nrelay and move bech32 string guard methods from …

…core to nip19.

core.ts

@@ -23,27 +23,8 @@ export type NostrEvent = Event
 export type EventTemplate = Pick<Event, 'kind' | 'tags' | 'content' | 'created_at'>
 export type UnsignedEvent = Pick<Event, 'kind' | 'tags' | 'content' | 'created_at' | 'pubkey'>
 
-export type NProfile = `nprofile1${string}`
-export type NRelay = `nrelay1${string}`
-export type NEvent = `nevent1${string}`
-export type NAddr = `naddr1${string}`
-export type NSec = `nsec1${string}`
-export type NPub = `npub1${string}`
-export type Note = `note1${string}`
-export type Ncryptsec = `ncryptsec1${string}`
 export type Nip05 = `${string}@${string}`
 
-export const NostrTypeGuard = {
-  isNProfile: (value?: string | null): value is NProfile => /^nprofile1[a-z\d]+$/.test(value || ''),
-  isNRelay: (value?: string | null): value is NRelay => /^nrelay1[a-z\d]+$/.test(value || ''),
-  isNEvent: (value?: string | null): value is NEvent => /^nevent1[a-z\d]+$/.test(value || ''),
-  isNAddr: (value?: string | null): value is NAddr => /^naddr1[a-z\d]+$/.test(value || ''),
-  isNSec: (value?: string | null): value is NSec => /^nsec1[a-z\d]{58}$/.test(value || ''),
-  isNPub: (value?: string | null): value is NPub => /^npub1[a-z\d]{58}$/.test(value || ''),
-  isNote: (value?: string | null): value is Note => /^note1[a-z\d]+$/.test(value || ''),
-  isNcryptsec: (value?: string | null): value is Note => /^ncryptsec1[a-z\d]+$/.test(value || ''),
-}
-
 /** An event whose signature has been verified. */
 export interface VerifiedEvent extends Event {
   [verifiedSymbol]: true

kinds.ts

@@ -35,7 +35,6 @@ export const ShortTextNote = 1
 export const RecommendRelay = 2
 export const Contacts = 3
 export const EncryptedDirectMessage = 4
-export const EncryptedDirectMessages = 4
 export const EventDeletion = 5
 export const Repost = 6
 export const Reaction = 7

nip19.test.ts

@@ -5,7 +5,6 @@ import {
   naddrEncode,
   nprofileEncode,
   npubEncode,
-  nrelayEncode,
   nsecEncode,
   neventEncode,
   type AddressPointer,
@@ -152,12 +151,3 @@ test('decode naddr from go-nostr with different TLV ordering', () => {
   expect(pointer.kind).toEqual(30023)
   expect(pointer.identifier).toEqual('banana')
 })
-
-test('encode and decode nrelay', () => {
-  let url = 'wss://relay.nostr.example'
-  let nrelay = nrelayEncode(url)
-  expect(nrelay).toMatch(/nrelay1\w+/)
-  let { type, data } = decode(nrelay)
-  expect(type).toEqual('nrelay')
-  expect(data).toEqual(url)
-})

nip19.ts

@@ -2,7 +2,26 @@ import { bytesToHex, concatBytes, hexToBytes } from '@noble/hashes/utils'
 import { bech32 } from '@scure/base'
 
 import { utf8Decoder, utf8Encoder } from './utils.ts'
-import { NAddr, NEvent, Note, NProfile, NPub, NRelay, NSec } from './core.ts'
+
+export type NProfile = `nprofile1${string}`
+export type NRelay = `nrelay1${string}`
+export type NEvent = `nevent1${string}`
+export type NAddr = `naddr1${string}`
+export type NSec = `nsec1${string}`
+export type NPub = `npub1${string}`
+export type Note = `note1${string}`
+export type Ncryptsec = `ncryptsec1${string}`
+
+export const NostrTypeGuard = {
+  isNProfile: (value?: string | null): value is NProfile => /^nprofile1[a-z\d]+$/.test(value || ''),
+  isNRelay: (value?: string | null): value is NRelay => /^nrelay1[a-z\d]+$/.test(value || ''),
+  isNEvent: (value?: string | null): value is NEvent => /^nevent1[a-z\d]+$/.test(value || ''),
+  isNAddr: (value?: string | null): value is NAddr => /^naddr1[a-z\d]+$/.test(value || ''),
+  isNSec: (value?: string | null): value is NSec => /^nsec1[a-z\d]{58}$/.test(value || ''),
+  isNPub: (value?: string | null): value is NPub => /^npub1[a-z\d]{58}$/.test(value || ''),
+  isNote: (value?: string | null): value is Note => /^note1[a-z\d]+$/.test(value || ''),
+  isNcryptsec: (value?: string | null): value is Note => /^ncryptsec1[a-z\d]+$/.test(value || ''),
+}
 
 export const Bech32MaxSize = 5000
 
@@ -46,7 +65,6 @@ export type AddressPointer = {
 
 type Prefixes = {
   nprofile: ProfilePointer
-  nrelay: string
   nevent: EventPointer
   naddr: AddressPointer
   nsec: Uint8Array
@@ -120,16 +138,6 @@ export function decode(nip19: string): DecodeResult {
       }
     }
 
-    case 'nrelay': {
-      let tlv = parseTLV(data)
-      if (!tlv[0]?.[0]) throw new Error('missing TLV 0 for nrelay')
-
-      return {
-        type: 'nrelay',
-        data: utf8Decoder.decode(tlv[0][0]),
-      }
-    }
-
     case 'nsec':
       return { type: prefix, data }
 
@@ -217,13 +225,6 @@ export function naddrEncode(addr: AddressPointer): NAddr {
   return encodeBech32('naddr', data)
 }
 
-export function nrelayEncode(url: string): NRelay {
-  let data = encodeTLV({
-    0: [utf8Encoder.encode(url)],
-  })
-  return encodeBech32('nrelay', data)
-}
-
 function encodeTLV(tlv: TLV): Uint8Array {
   let entries: Uint8Array[] = []
 

nip49.ts

@@ -1,9 +1,8 @@
 import { scrypt } from '@noble/hashes/scrypt'
 import { xchacha20poly1305 } from '@noble/ciphers/chacha'
 import { concatBytes, randomBytes } from '@noble/hashes/utils'
-import { Bech32MaxSize, encodeBytes } from './nip19.ts'
+import { Bech32MaxSize, Ncryptsec, encodeBytes } from './nip19.ts'
 import { bech32 } from '@scure/base'
-import { Ncryptsec } from './core.ts'
 
 export function encrypt(
   sec: Uint8Array,