From 31e3b9ff8baac145be3e00eedc6d0ae065474b8d Mon Sep 17 00:00:00 2001
From: Fabio Berger <me@fabioberger.com>
Date: Mon, 25 Jun 2018 22:59:41 +0200
Subject: Fix and imprrove ethLightWalletSubprovider

---
 packages/subproviders/package.json                    |  2 +-
 .../src/subproviders/eth_lightwallet_subprovider.ts   | 19 ++++++++++---------
 .../test/unit/eth_lightwallet_subprovider_test.ts     | 11 ++++++-----
 3 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index c3e588718..76b88cee0 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -41,7 +41,7 @@
     },
     "dependencies": {
         "@0xproject/assert": "^0.2.12",
-        "@0xproject/types": "^0.8.1",
+        "@0xproject/types": "^1.0.0",
         "@0xproject/typescript-typings": "^0.4.1",
         "@0xproject/utils": "^0.7.1",
         "@ledgerhq/hw-app-eth": "^4.3.0",
diff --git a/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts b/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts
index 7507eeb49..a908ab5fc 100644
--- a/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts
+++ b/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts
@@ -15,14 +15,12 @@ import { BaseWalletSubprovider } from './base_wallet_subprovider';
  * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
  */
 export class EthLightwalletSubprovider extends BaseWalletSubprovider {
-    private _signing: any;
-    private _keystore: any;
+    private _keystore: lightwallet.keystore;
     private _pwDerivedKey: Uint8Array;
 
-    constructor(signing: lightwallet.signing, keystore: lightwallet.keystore, pwDerivedKey: Uint8Array) {
+    constructor(keystore: lightwallet.keystore, pwDerivedKey: Uint8Array) {
         super();
 
-        this._signing = signing;
         this._keystore = keystore;
         this._pwDerivedKey = pwDerivedKey;
     }
@@ -54,8 +52,7 @@ export class EthLightwalletSubprovider extends BaseWalletSubprovider {
 
         const tx = new EthereumTx(txParams);
         const txHex = tx.serialize().toString('hex');
-        let signedTxHex: string = this._signing.signTx(
-            this._keystore, this._pwDerivedKey, txHex, txParams.from, this._keystore.hdPathString);
+        let signedTxHex: string = lightwallet.signing.signTx(this._keystore, this._pwDerivedKey, txHex, txParams.from);
 
         signedTxHex = `0x${signedTxHex}`;
 
@@ -78,10 +75,14 @@ export class EthLightwalletSubprovider extends BaseWalletSubprovider {
         }
         assert.isHexString('data', data);
         assert.isETHAddressHex('address', address);
-        const result: ECSignatureBuffer = await this._signing.signMsgHash(
-            this._keystore, this._pwDerivedKey, data, address, this._keystore.hdPathString);
+        const result: ECSignatureBuffer = lightwallet.signing.signMsgHash(
+            this._keystore,
+            this._pwDerivedKey,
+            data,
+            address,
+        );
 
-        const signature = this._signing.concatSig(result);
+        const signature = lightwallet.signing.concatSig(result);
 
         return signature;
     }
diff --git a/packages/subproviders/test/unit/eth_lightwallet_subprovider_test.ts b/packages/subproviders/test/unit/eth_lightwallet_subprovider_test.ts
index 77a1ac58e..b99dbff2f 100644
--- a/packages/subproviders/test/unit/eth_lightwallet_subprovider_test.ts
+++ b/packages/subproviders/test/unit/eth_lightwallet_subprovider_test.ts
@@ -1,8 +1,7 @@
-import { JSONRPCResponsePayload } from '@0xproject/types';
 import * as chai from 'chai';
 import * as lightwallet from 'eth-lightwallet';
+import { JSONRPCResponsePayload } from 'ethereum-types';
 import Web3ProviderEngine = require('web3-provider-engine');
-import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
 import { EthLightwalletSubprovider } from '../../src';
 import { DoneCallback } from '../../src/types';
@@ -59,7 +58,7 @@ describe('EthLightwalletSubprovider', () => {
         keystore.generateNewAddress(pwDerivedKey, NUM_GENERATED_ADDRESSES);
 
         // Initialize Subprovider
-        ethLightwalletSubprovider = new EthLightwalletSubprovider(lightwallet.signing, keystore, pwDerivedKey);
+        ethLightwalletSubprovider = new EthLightwalletSubprovider(keystore, pwDerivedKey);
     });
     describe('direct method calls', () => {
         describe('success cases', () => {
@@ -73,8 +72,10 @@ describe('EthLightwalletSubprovider', () => {
 
                 // Keccak-256 hash of 'hello world'
                 const messageHash = '0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad';
-                const ecSignatureHex =
-                    await ethLightwalletSubprovider.signPersonalMessageAsync(messageHash, signingAccount);
+                const ecSignatureHex = await ethLightwalletSubprovider.signPersonalMessageAsync(
+                    messageHash,
+                    signingAccount,
+                );
                 expect(ecSignatureHex).to.be.equal(
                     // tslint:disable-next-line:max-line-length
                     '0xa46b696c1aa8f91dbb33d1a66f6440bf3cf334c9dc45dc389668c1e60e2db31e259400b41f31632fa994837054c5345c88dc455c13931332489029adee6fd24d1b',
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