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import { assetProxyUtils, generatePseudoRandomSalt } from '@0xproject/order-utils';
import { Order } from '@0xproject/types';
import { BigNumber, errorUtils } from '@0xproject/utils';
import { constants } from './constants';
import {
AssetDataScenario,
ERC721Token,
ExpirationTimeSecondsScenario,
FeeRecipientAddressScenario,
OrderAmountScenario,
} from './types';
const TEN_UNITS_EIGHTEEN_DECIMALS = new BigNumber(10000000000000000000);
const POINT_ONE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(100000000000000000);
const TEN_UNITS_FIVE_DECIMALS = new BigNumber(1000000);
const ONE_NFT_UNIT = new BigNumber(1);
const TEN_MINUTES_MS = 1000 * 60 * 10;
export const combinatorialUtils = {
generateOrder(
userAddresses: string[],
zrxAddress: string,
nonZrxERC20EighteenDecimalTokenAddress: string,
erc20FiveDecimalTokenAddress: string,
erc721Token: ERC721Token,
exchangeAddress: string,
feeRecipientScenario: FeeRecipientAddressScenario,
makerAssetAmountScenario: OrderAmountScenario,
takerAssetAmountScenario: OrderAmountScenario,
makerFeeScenario: OrderAmountScenario,
takerFeeScenario: OrderAmountScenario,
expirationTimeSecondsScenario: ExpirationTimeSecondsScenario,
makerAssetDataScenario: AssetDataScenario,
takerAssetDataScenario: AssetDataScenario,
): Order {
let feeRecipientAddress;
let makerAssetAmount;
let takerAssetAmount;
let makerFee;
let takerFee;
let expirationTimeSeconds;
let makerAssetData;
let takerAssetData;
switch (feeRecipientScenario) {
case FeeRecipientAddressScenario.BurnAddress:
feeRecipientAddress = constants.NULL_ADDRESS;
break;
case FeeRecipientAddressScenario.EthUserAddress:
feeRecipientAddress = userAddresses[4];
break;
default:
throw errorUtils.spawnSwitchErr('FeeRecipientAddressScenario', feeRecipientScenario);
}
const invalidAssetProxyIdHex = '0A';
switch (makerAssetDataScenario) {
case AssetDataScenario.ZRXFeeToken:
makerAssetData = assetProxyUtils.encodeERC20ProxyData(zrxAddress);
break;
case AssetDataScenario.ERC20NonZRXEighteenDecimals:
makerAssetData = assetProxyUtils.encodeERC20ProxyData(nonZrxERC20EighteenDecimalTokenAddress);
break;
case AssetDataScenario.ERC20FiveDecimals:
makerAssetData = assetProxyUtils.encodeERC20ProxyData(erc20FiveDecimalTokenAddress);
break;
case AssetDataScenario.ERC20InvalidAssetProxyId: {
const validAssetData = assetProxyUtils.encodeERC20ProxyData(nonZrxERC20EighteenDecimalTokenAddress);
makerAssetData = `${validAssetData.slice(0, -2)}${invalidAssetProxyIdHex}`;
break;
}
case AssetDataScenario.ERC721ValidAssetProxyId:
makerAssetData = assetProxyUtils.encodeERC721ProxyData(erc721Token.address, erc721Token.id);
break;
case AssetDataScenario.ERC721InvalidAssetProxyId: {
const validAssetData = assetProxyUtils.encodeERC721ProxyData(erc721Token.address, erc721Token.id);
makerAssetData = `${validAssetData.slice(0, -2)}${invalidAssetProxyIdHex}`;
break;
}
default:
throw errorUtils.spawnSwitchErr('AssetDataScenario', makerAssetDataScenario);
}
switch (takerAssetDataScenario) {
case AssetDataScenario.ZRXFeeToken:
takerAssetData = assetProxyUtils.encodeERC20ProxyData(zrxAddress);
break;
case AssetDataScenario.ERC20NonZRXEighteenDecimals:
takerAssetData = assetProxyUtils.encodeERC20ProxyData(nonZrxERC20EighteenDecimalTokenAddress);
break;
case AssetDataScenario.ERC20FiveDecimals:
takerAssetData = assetProxyUtils.encodeERC20ProxyData(erc20FiveDecimalTokenAddress);
break;
case AssetDataScenario.ERC20InvalidAssetProxyId: {
const validAssetData = assetProxyUtils.encodeERC20ProxyData(nonZrxERC20EighteenDecimalTokenAddress);
takerAssetData = `${validAssetData.slice(0, -2)}${invalidAssetProxyIdHex}`;
break;
}
case AssetDataScenario.ERC721ValidAssetProxyId:
takerAssetData = assetProxyUtils.encodeERC721ProxyData(erc721Token.address, erc721Token.id);
break;
case AssetDataScenario.ERC721InvalidAssetProxyId: {
const validAssetData = assetProxyUtils.encodeERC721ProxyData(erc721Token.address, erc721Token.id);
takerAssetData = `${validAssetData.slice(0, -2)}${invalidAssetProxyIdHex}`;
break;
}
default:
throw errorUtils.spawnSwitchErr('AssetDataScenario', takerAssetDataScenario);
}
switch (makerAssetAmountScenario) {
case OrderAmountScenario.NonZero:
switch (makerAssetDataScenario) {
case AssetDataScenario.ERC20NonZRXEighteenDecimals:
case AssetDataScenario.ERC20InvalidAssetProxyId:
makerAssetAmount = TEN_UNITS_EIGHTEEN_DECIMALS;
break;
case AssetDataScenario.ERC20FiveDecimals:
makerAssetAmount = TEN_UNITS_FIVE_DECIMALS;
break;
case AssetDataScenario.ERC721ValidAssetProxyId:
case AssetDataScenario.ERC721InvalidAssetProxyId:
makerAssetAmount = ONE_NFT_UNIT;
break;
default:
throw errorUtils.spawnSwitchErr('AssetDataScenario', makerAssetDataScenario);
}
break;
case OrderAmountScenario.Zero:
makerAssetAmount = new BigNumber(0);
break;
default:
throw errorUtils.spawnSwitchErr('OrderAmountScenario', makerAssetAmountScenario);
}
switch (takerAssetAmountScenario) {
case OrderAmountScenario.NonZero:
switch (takerAssetDataScenario) {
case AssetDataScenario.ERC20NonZRXEighteenDecimals:
case AssetDataScenario.ERC20InvalidAssetProxyId:
takerAssetAmount = TEN_UNITS_EIGHTEEN_DECIMALS;
break;
case AssetDataScenario.ERC20FiveDecimals:
takerAssetAmount = TEN_UNITS_FIVE_DECIMALS;
break;
case AssetDataScenario.ERC721ValidAssetProxyId:
case AssetDataScenario.ERC721InvalidAssetProxyId:
takerAssetAmount = ONE_NFT_UNIT;
break;
default:
throw errorUtils.spawnSwitchErr('AssetDataScenario', takerAssetDataScenario);
}
break;
case OrderAmountScenario.Zero:
takerAssetAmount = new BigNumber(0);
break;
default:
throw errorUtils.spawnSwitchErr('OrderAmountScenario', takerAssetAmountScenario);
}
switch (makerFeeScenario) {
case OrderAmountScenario.NonZero:
makerFee = POINT_ONE_UNITS_EIGHTEEN_DECIMALS;
break;
case OrderAmountScenario.Zero:
makerFee = new BigNumber(0);
break;
default:
throw errorUtils.spawnSwitchErr('OrderAmountScenario', makerFeeScenario);
}
switch (takerFeeScenario) {
case OrderAmountScenario.NonZero:
takerFee = POINT_ONE_UNITS_EIGHTEEN_DECIMALS;
break;
case OrderAmountScenario.Zero:
takerFee = new BigNumber(0);
break;
default:
throw errorUtils.spawnSwitchErr('OrderAmountScenario', takerFeeScenario);
}
switch (expirationTimeSecondsScenario) {
case ExpirationTimeSecondsScenario.InFuture:
expirationTimeSeconds = new BigNumber(Date.now() + TEN_MINUTES_MS);
break;
case ExpirationTimeSecondsScenario.InPast:
expirationTimeSeconds = new BigNumber(Date.now() - TEN_MINUTES_MS);
break;
default:
throw errorUtils.spawnSwitchErr('ExpirationTimeSecondsScenario', expirationTimeSecondsScenario);
}
const order: Order = {
senderAddress: constants.NULL_ADDRESS,
makerAddress: userAddresses[1],
takerAddress: userAddresses[2],
makerFee,
takerFee,
makerAssetAmount,
takerAssetAmount,
makerAssetData,
takerAssetData,
salt: generatePseudoRandomSalt(),
exchangeAddress,
feeRecipientAddress,
expirationTimeSeconds,
};
return order;
},
};
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