fix: wait for extension

src/providers/NostrProvider/index.tsx

@@ -192,6 +192,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
   const nip07Login = async () => {
     try {
       const nip07Signer = new Nip07Signer()
+      await nip07Signer.init()
       const pubkey = await nip07Signer.getPublicKey()
       if (!pubkey) {
         throw new Error('You did not allow to access your pubkey')
@@ -253,6 +254,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
       }
     } else if (account.signerType === 'nip-07') {
       const nip07Signer = new Nip07Signer()
+      await nip07Signer.init()
       return login(nip07Signer, account)
     } else if (account.signerType === 'bunker') {
       if (account.bunker && account.bunkerClientSecretKey) {

src/providers/NostrProvider/nip-07.signer.ts

@@ -1,19 +1,30 @@
 import { ISigner, TDraftEvent, TNip07 } from '@/types'
 
 export class Nip07Signer implements ISigner {
-  private signer: TNip07
+  private signer: TNip07 | undefined
   private pubkey: string | null = null
 
-  constructor() {
-    if (!window.nostr) {
-      throw new Error(
-        'You need to install a nostr signer extension to login. Such as alby, nostr-keyx or nos2x.'
-      )
+  async init() {
+    const checkInterval = 100
+    const maxAttempts = 50
+
+    for (let attempt = 0; attempt < maxAttempts; attempt++) {
+      if (window.nostr) {
+        this.signer = window.nostr
+        return
+      }
+      await new Promise((resolve) => setTimeout(resolve, checkInterval))
     }
-    this.signer = window.nostr
+
+    throw new Error(
+      'You need to install a nostr signer extension to login. Such as alby, nostr-keyx or nos2x.'
+    )
   }
 
   async getPublicKey() {
+    if (!this.signer) {
+      throw new Error('Should call init() first')
+    }
     if (!this.pubkey) {
       this.pubkey = await this.signer.getPublicKey()
     }
@@ -21,12 +32,15 @@ export class Nip07Signer implements ISigner {
   }
 
   async signEvent(draftEvent: TDraftEvent) {
+    if (!this.signer) {
+      throw new Error('Should call init() first')
+    }
     return await this.signer.signEvent(draftEvent)
   }
 
   async nip04Encrypt(pubkey: string, plainText: string) {
     if (!this.signer) {
-      throw new Error('Not logged in')
+      throw new Error('Should call init() first')
     }
     if (!this.signer.nip04?.encrypt) {
       throw new Error('The extension you are using does not support nip04 encryption')
@@ -36,7 +50,7 @@ export class Nip07Signer implements ISigner {
 
   async nip04Decrypt(pubkey: string, cipherText: string) {
     if (!this.signer) {
-      throw new Error('Not logged in')
+      throw new Error('Should call init() first')
     }
     if (!this.signer.nip04?.decrypt) {
       throw new Error('The extension you are using does not support nip04 decryption')