Refactor CosmosLib

wallets/react-wallet-v2/src/lib/CosmosLib.ts

@@ -0,0 +1,66 @@
+import { Secp256k1Wallet, StdSignDoc } from '@cosmjs/amino'
+import { fromHex } from '@cosmjs/encoding'
+import { DirectSecp256k1Wallet, makeSignBytes } from '@cosmjs/proto-signing'
+// @ts-expect-error
+import { SignDoc } from '@cosmjs/proto-signing/build/codec/cosmos/tx/v1beta1/tx'
+import Keyring from 'mnemonic-keyring'
+
+/**
+ * Constants
+ */
+const DEFAULT_PATH = "m/44'/118'/0'/0/0"
+const DEFAULT_PREFIX = 'cosmos'
+
+/**
+ * Types
+ */
+interface IInitArguments {
+  mnemonic?: string
+  path?: string
+  prefix?: string
+}
+
+/**
+ * Library
+ */
+export default class CosmosLib {
+  private keyring: Keyring
+  private directSigner: DirectSecp256k1Wallet
+  private aminoSigner: Secp256k1Wallet
+
+  constructor(keyring: Keyring, directSigner: DirectSecp256k1Wallet, aminoSigner: Secp256k1Wallet) {
+    this.directSigner = directSigner
+    this.keyring = keyring
+    this.aminoSigner = aminoSigner
+  }
+
+  static async init({ mnemonic, path, prefix }: IInitArguments) {
+    const keyring = await Keyring.init({ mnemonic: mnemonic ?? Keyring.generateMnemonic() })
+    const privateKey = fromHex(keyring.getPrivateKey(path ?? DEFAULT_PATH))
+    const directSigner = await DirectSecp256k1Wallet.fromKey(privateKey, prefix ?? DEFAULT_PREFIX)
+    const aminoSigner = await Secp256k1Wallet.fromKey(privateKey, prefix ?? DEFAULT_PREFIX)
+
+    return new CosmosLib(keyring, directSigner, aminoSigner)
+  }
+
+  public getMnemonic() {
+    return this.keyring.mnemonic
+  }
+
+  public async getAccount() {
+    const account = await this.directSigner.getAccounts()
+
+    return account[0]
+  }
+
+  public async signDirect(address: string, signDoc: SignDoc) {
+    console.log(signDoc)
+    const signDocBytes = makeSignBytes(signDoc)
+    // @ts-expect-error
+    return await this.directSigner.signDirect(address, signDocBytes)
+  }
+
+  public async signAmino(address: string, signDoc: StdSignDoc) {
+    return await this.aminoSigner.signAmino(address, signDoc)
+  }
+}

wallets/react-wallet-v2/src/lib/EIP155.ts

@@ -22,7 +22,7 @@ interface IInitArguments {
 /**
  * Utility
  */
-export class Cosmos {
+export class EIP155 {
   private keyring: MnemonicKeyring
   private directSigner: DirectSecp256k1Wallet
   private aminoSigner: Secp256k1Wallet
@@ -44,7 +44,7 @@ export class Cosmos {
     const directSigner = await DirectSecp256k1Wallet.fromKey(privateKey, chainPrefix)
     const aminoSigner = await Secp256k1Wallet.fromKey(privateKey, chainPrefix)
 
-    return new Cosmos(keyring, directSigner, aminoSigner)
+    return new EIP155(keyring, directSigner, aminoSigner)
   }
 
   public async getAccount(number = 0) {

wallets/react-wallet-v2/src/utils/CosmosWalletUtil.ts

@@ -1,8 +1,8 @@
-import { Cosmos } from '@/lib/Cosmos'
+import CosmosLib from '@/lib/CosmosLib'
 
-export let wallet1: Cosmos
+export let wallet1: CosmosLib
-export let wallet2: Cosmos
+export let wallet2: CosmosLib
-export let cosmosWallets: Record<string, Cosmos>
+export let cosmosWallets: Record<string, CosmosLib>
 export let cosmosAddresses: string[]
 
 let address1: string
@@ -12,26 +12,26 @@ let address2: string
  * Utilities
  */
 export async function createOrRestoreCosmosWallet() {
-  const mnemonic = localStorage.getItem('WALLET_MNEMONIC')
+  const mnemonic1 = localStorage.getItem('COSMOS_MNEMONIC_1')
+  const mnemonic2 = localStorage.getItem('COSMOS_MNEMONIC_2')
 
-  if (mnemonic) {
+  if (mnemonic1 && mnemonic2) {
-    wallet1 = await Cosmos.init({ mnemonic, path: "m/44'/118'/0'/0/0" })
+    wallet1 = await CosmosLib.init({ mnemonic: mnemonic1 })
-    wallet2 = await Cosmos.init({ mnemonic, path: "m/44'/118'/0'/0/1" })
+    wallet2 = await CosmosLib.init({ mnemonic: mnemonic2 })
     const account1 = await wallet1.getAccount()
     const account2 = await wallet2.getAccount()
     address1 = account1.address
     address2 = account2.address
   } else {
-    wallet1 = await Cosmos.init({ path: "m/44'/118'/0'/0/0" })
+    wallet1 = await CosmosLib.init({})
-    const mnemonic = wallet1.getMnemonic()
+    wallet2 = await CosmosLib.init({})
-    // We can reuse same mnemonic for both wallets
-    wallet2 = await Cosmos.init({ mnemonic, path: "m/44'/118'/0'/0/1" })
     const account1 = await wallet1.getAccount()
     const account2 = await wallet2.getAccount()
     address1 = account1.address
     address2 = account2.address
     // Don't store mnemonic in local storage in a production project!
-    localStorage.setItem('WALLET_MNEMONIC', mnemonic)
+    localStorage.setItem('COSMOS_MNEMONIC_1', wallet1.getMnemonic())
+    localStorage.setItem('COSMOS_MNEMONIC_2', wallet2.getMnemonic())
   }
 
   cosmosWallets = {