simplify nip-42.

nip42.ts

@@ -1,33 +1,17 @@
-import { type EventTemplate, type Event } from './event.ts'
+import { EventTemplate } from './event.ts'
 import { ClientAuth } from './kinds.ts'
-import { Relay } from './relay.ts'
 
 /**
- * Authenticate via NIP-42 flow.
- *
- * @example
- * const sign = window.nostr.signEvent
- * relay.on('auth', challenge =>
- *   authenticate({ relay, sign, challenge })
- * )
+ * creates an EventTemplate for an AUTH event to be signed.
  */
-export const authenticate = async ({
-  challenge,
-  relay,
-  sign,
-}: {
-  challenge: string
-  relay: Relay
-  sign: (e: EventTemplate) => Promise<Event> | Event
-}): Promise<void> => {
-  const evt: EventTemplate = {
+export function makeAuthEvent(relayURL: string, challenge: string): EventTemplate {
+  return {
     kind: ClientAuth,
     created_at: Math.floor(Date.now() / 1000),
     tags: [
-      ['relay', relay.url],
+      ['relay', relayURL],
       ['challenge', challenge],
     ],
     content: '',
   }
-  return relay.auth(await sign(evt))
 }