52 lines
2.3 KiB
TypeScript
52 lines
2.3 KiB
TypeScript
import { artifacts, IExchangeContract } from '@0x/contracts-exchange';
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import { constants as devConstants, provider } from '@0x/contracts-test-utils';
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import { SignedOrder } from '@0x/types';
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import { constants } from './index';
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export const exchangeDataEncoder = {
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encodeOrdersToExchangeData(fnName: string, orders: SignedOrder[]): string {
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const exchangeInstance = new IExchangeContract(
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artifacts.IExchange.compilerOutput.abi,
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devConstants.NULL_ADDRESS,
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provider,
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);
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let data;
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if (constants.SINGLE_FILL_FN_NAMES.indexOf(fnName) !== -1) {
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data = (exchangeInstance as any)[fnName].getABIEncodedTransactionData(
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orders[0],
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orders[0].takerAssetAmount,
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orders[0].signature,
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);
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} else if (constants.BATCH_FILL_FN_NAMES.indexOf(fnName) !== -1) {
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data = (exchangeInstance as any)[fnName].getABIEncodedTransactionData(
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orders,
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orders.map(order => order.takerAssetAmount),
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orders.map(order => order.signature),
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);
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} else if (constants.MARKET_FILL_FN_NAMES.indexOf(fnName) !== -1) {
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data = (exchangeInstance as any)[fnName].getABIEncodedTransactionData(
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orders,
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orders.map(order => order.takerAssetAmount).reduce((prev, curr) => prev.plus(curr)),
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orders.map(order => order.signature),
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);
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} else if (fnName === constants.MATCH_ORDERS) {
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data = exchangeInstance.matchOrders.getABIEncodedTransactionData(
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orders[0],
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orders[1],
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orders[0].signature,
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orders[1].signature,
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);
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} else if (fnName === constants.CANCEL_ORDER) {
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data = exchangeInstance.cancelOrder.getABIEncodedTransactionData(orders[0]);
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} else if (fnName === constants.BATCH_CANCEL_ORDERS) {
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data = exchangeInstance.batchCancelOrders.getABIEncodedTransactionData(orders);
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} else if (fnName === constants.CANCEL_ORDERS_UP_TO) {
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data = exchangeInstance.cancelOrdersUpTo.getABIEncodedTransactionData(devConstants.ZERO_AMOUNT);
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} else {
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throw new Error(`Error: ${fnName} not a supported function`);
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}
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return data;
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},
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};
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