From e23ac8a5961f7056d6b823042bc8faadc7f86ef1 Mon Sep 17 00:00:00 2001
From: Michele Esposito <michele@esposito.codes>
Date: Tue, 25 Jul 2023 10:57:32 +0200
Subject: [PATCH] refactor: use createNewVaultAndRestore from core kc

---
 app/scripts/metamask-controller.js | 38 +++++++++++++++++-------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index d58adf26c62d..f5e793b5dcb6 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -89,6 +89,7 @@ import {
   ERC20,
   ERC721,
 } from '@metamask/controller-utils';
+import { wordlist } from '@metamask/scure-bip39/dist/wordlists/english';
 
 ///: BEGIN:ONLY_INCLUDE_IN(build-mmi)
 import { toChecksumHexAddress } from '../../shared/modules/hexstring-utils';
@@ -2880,8 +2881,6 @@ export default class MetamaskController extends EventEmitter {
 
       const seedPhraseAsBuffer = Buffer.from(encodedSeedPhrase);
 
-      const { keyringController } = this;
-
       // clear known identities
       this.preferencesController.setAddresses([]);
 
@@ -2905,29 +2904,22 @@ export default class MetamaskController extends EventEmitter {
       this.txController.txStateManager.clearUnapprovedTxs();
 
       // create new vault
-      const vault = await keyringController.createNewVaultAndRestore(
+      const vault = await this.coreKeyringController.createNewVaultAndRestore(
         password,
-        seedPhraseAsBuffer,
+        this._bufferToUint8Array(seedPhraseAsBuffer),
       );
 
       const ethQuery = new EthQuery(this.provider);
-      accounts = await keyringController.getAccounts();
+      accounts = await this.coreKeyringController.getAccounts();
       lastBalance = await this.getBalance(
         accounts[accounts.length - 1],
         ethQuery,
       );
 
-      const [primaryKeyring] = keyringController.getKeyringsByType(
-        KeyringType.hdKeyTree,
-      );
-      if (!primaryKeyring) {
-        throw new Error('MetamaskController - No HD Key Tree found');
-      }
-
       // seek out the first zero balance
       while (lastBalance !== '0x0') {
-        await keyringController.addNewAccount(primaryKeyring);
-        accounts = await keyringController.getAccounts();
+        await this.coreKeyringController.addNewAccount(accounts.length);
+        accounts = await this.coreKeyringController.getAccounts();
         lastBalance = await this.getBalance(
           accounts[accounts.length - 1],
           ethQuery,
@@ -2937,7 +2929,7 @@ export default class MetamaskController extends EventEmitter {
       // remove extra zero balance account potentially created from seeking ahead
       if (accounts.length > 1 && lastBalance === '0x0') {
         await this.removeAccount(accounts[accounts.length - 1]);
-        accounts = await keyringController.getAccounts();
+        accounts = await this.coreKeyringController.getAccounts();
       }
 
       // This must be set as soon as possible to communicate to the
@@ -2948,8 +2940,6 @@ export default class MetamaskController extends EventEmitter {
         this.preferencesController.getLedgerTransportPreference();
       this.setLedgerTransportPreference(transportPreference);
 
-      // set new identities
-      this.preferencesController.setAddresses(accounts);
       this.selectFirstIdentity();
 
       return vault;
@@ -2958,6 +2948,20 @@ export default class MetamaskController extends EventEmitter {
     }
   }
 
+  /**
+   * Get a Uint8Array mnemonic from Buffer.
+   *
+   * @param {Buffer} mnemonic - The mnemonic phrase as a Buffer
+   * @returns {Uint8Array} The mnemonic phrase as a Uint8Array
+   */
+  _bufferToUint8Array(mnemonic) {
+    const indices = mnemonic
+      .toString()
+      .split(' ')
+      .map((word) => wordlist.indexOf(word));
+    return new Uint8Array(new Uint16Array(indices).buffer);
+  }
+
   /**
    * Get an account balance from the AccountTracker or request it directly from the network.
    *