refactor(nostr): capturePublicKey from signedEvent instead of nostr api call

src/controllers/NostrController.ts

@@ -1,9 +1,9 @@
 import { EventTemplate, UnsignedEvent } from 'nostr-tools'
-import { WindowNostr } from 'nostr-tools/nip07'
 import { EventEmitter } from 'tseep'
 import store from '../store/store'
 import { SignedEvent } from '../types'
 import { LoginMethodContext } from '../services/LoginMethodStrategy/loginMethodContext'
+import { unixNow } from '../utils'
 
 export class NostrController extends EventEmitter {
   private static instance: NostrController
@@ -11,13 +11,6 @@ export class NostrController extends EventEmitter {
   private constructor() {
     super()
   }
-  private getNostrObject = () => {
-    if (window.nostr) return window.nostr as WindowNostr
-
-    throw new Error(
-      `window.nostr object not present. Make sure you have an nostr extension installed/working properly.`
-    )
-  }
 
   public static getInstance(): NostrController {
     if (!NostrController.instance) {
@@ -97,23 +90,37 @@ export class NostrController extends EventEmitter {
   }
 
   /**
-   * Function will capture the public key from the nostr extension or if no extension present
-   * function wil capture the public key from the local storage
+   * Function will capture the public key from signedEvent
    */
   capturePublicKey = async (): Promise<string> => {
-    const nostr = this.getNostrObject()
-    const pubKey = await nostr.getPublicKey().catch((err: unknown) => {
-      if (err instanceof Error) {
-        return Promise.reject(err.message)
-      } else {
-        return Promise.reject(JSON.stringify(err))
+    try {
+      const timestamp = unixNow()
+      const { href } = window.location
+
+      const authEvent: EventTemplate = {
+        kind: 27235,
+        tags: [
+          ['u', href],
+          ['method', 'GET']
+        ],
+        content: '',
+        created_at: timestamp
       }
-    })
 
-    if (!pubKey) {
-      return Promise.reject('Error getting public key, user canceled')
+      const signedAuthEvent = await this.signEvent(authEvent)
+      const pubkey = signedAuthEvent.pubkey
+
+      if (!pubkey) {
+        return Promise.reject('Error getting public key, user canceled')
+      }
+
+      return Promise.resolve(pubkey)
+    } catch (error) {
+      if (error instanceof Error) {
+        return Promise.reject(error.message)
+      } else {
+        return Promise.reject(JSON.stringify(error))
+      }
     }
-
-    return Promise.resolve(pubKey)
   }
 }