Use Order and SignedOrder type from 0x.js

packages/contracts/util/order_factory.ts

@@ -1,33 +1,37 @@
-import { ZeroEx } from '0x.js';
+import { Order, SignedOrder, ZeroEx } from '0x.js';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
-import { Order } from './order';
-import { SignedOrder } from './signed_order';
-import { DefaultOrderParams, OptionalOrderParams, OrderParams } from './types';
+import { DefaultOrderParams } from './types';
 
 export class OrderFactory {
-    private _defaultOrderParams: DefaultOrderParams;
-    private _web3Wrapper: Web3Wrapper;
-    constructor(web3Wrapper: Web3Wrapper, defaultOrderParams: DefaultOrderParams) {
+    private _defaultOrderParams: Partial<Order>;
+    private _zeroEx: ZeroEx;
+    constructor(zeroEx: ZeroEx, defaultOrderParams: Partial<Order>) {
         this._defaultOrderParams = defaultOrderParams;
-        this._web3Wrapper = web3Wrapper;
+        this._zeroEx = zeroEx;
     }
-    public async newSignedOrderAsync(customOrderParams: OptionalOrderParams = {}): Promise<SignedOrder> {
+    public async newSignedOrderAsync(customOrderParams: Partial<Order> = {}): Promise<SignedOrder> {
         const randomExpiration = new BigNumber(Math.floor((Date.now() + Math.random() * 100000000000) / 1000));
-        const orderParams: OrderParams = _.assign(
-            {},
-            {
-                expirationTimestampInSec: randomExpiration,
-                salt: ZeroEx.generatePseudoRandomSalt(),
-                taker: ZeroEx.NULL_ADDRESS,
-            },
-            this._defaultOrderParams,
-            customOrderParams,
+        const order = ({
+            expirationUnixTimestampSec: randomExpiration,
+            salt: ZeroEx.generatePseudoRandomSalt(),
+            taker: ZeroEx.NULL_ADDRESS,
+            ...this._defaultOrderParams,
+            ...customOrderParams,
+        } as any) as Order;
+        const orderHashHex = ZeroEx.getOrderHashHex(order);
+        const shouldAddPersonalMessagePrefix = false;
+        const ecSignature = await this._zeroEx.signOrderHashAsync(
+            orderHashHex,
+            order.maker,
+            shouldAddPersonalMessagePrefix,
         );
-        const order = new Order(this._web3Wrapper, orderParams);
-        const signedOrder = await order.signAsync();
+        const signedOrder = {
+            ...order,
+            ecSignature,
+        };
         return signedOrder;
     }
 }