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import { assert as sharedAssert } from '@0xproject/assert';
import { schemas } from '@0xproject/json-schemas';
import { SignedOrder } from '@0xproject/types';
import * as _ from 'lodash';
import { BuyQuote, OrderProvider, OrderProviderRequest } from '../types';
export const assert = {
...sharedAssert,
isValidBuyQuote(variableName: string, buyQuote: BuyQuote): void {
sharedAssert.isHexString(`${variableName}.assetData`, buyQuote.assetData);
sharedAssert.doesConformToSchema(`${variableName}.orders`, buyQuote.orders, schemas.signedOrdersSchema);
sharedAssert.doesConformToSchema(`${variableName}.feeOrders`, buyQuote.feeOrders, schemas.signedOrdersSchema);
sharedAssert.isBigNumber(`${variableName}.minRate`, buyQuote.minRate);
sharedAssert.isBigNumber(`${variableName}.maxRate`, buyQuote.maxRate);
sharedAssert.isBigNumber(`${variableName}.assetBuyAmount`, buyQuote.assetBuyAmount);
if (!_.isUndefined(buyQuote.feePercentage)) {
sharedAssert.isNumber(`${variableName}.feePercentage`, buyQuote.feePercentage);
}
},
isValidOrderProvider(variableName: string, orderFetcher: OrderProvider): void {
sharedAssert.isFunction(`${variableName}.fetchOrdersAsync`, orderFetcher.getOrdersAsync);
},
isValidOrderProviderRequest(variableName: string, orderFetcherRequest: OrderProviderRequest): void {
sharedAssert.isHexString(`${variableName}.makerAssetData`, orderFetcherRequest.makerAssetData);
sharedAssert.isHexString(`${variableName}.takerAssetData`, orderFetcherRequest.takerAssetData);
sharedAssert.isNumber(`${variableName}.networkId`, orderFetcherRequest.networkId);
},
areValidProvidedOrders(variableName: string, orders: SignedOrder[]): void {
if (orders.length === 0) {
return;
}
const makerAssetData = orders[0].makerAssetData;
const takerAssetData = orders[0].takerAssetData;
const filteredOrders = _.filter(
orders,
order => order.makerAssetData === makerAssetData && order.takerAssetData === takerAssetData,
);
sharedAssert.assert(
orders.length === filteredOrders.length,
`Expected all orders in ${variableName} to have the same makerAssetData and takerAssetData.`,
);
},
isValidPercentage(variableName: string, percentage: number): void {
assert.isNumber(variableName, percentage);
assert.assert(
percentage >= 0 && percentage <= 1,
`Expected ${variableName} to be between 0 and 1, but is ${percentage}`,
);
},
};
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