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// tslint:disable:no-unnecessary-type-assertion
import { assetDataUtils, orderHashUtils } from '@0x/order-utils';
import { AssetProxyId, ERC20AssetData, ERC721AssetData, SignedOrder } from '@0x/types';
import { BigNumber } from '@0x/utils';
import * as _ from 'lodash';
export interface OrderHashesByMakerAddress {
[makerAddress: string]: Set<string>;
}
export interface OrderHashesByERC20ByMakerAddress {
[makerAddress: string]: {
[erc20TokenAddress: string]: Set<string>;
};
}
export interface OrderHashesByERC721AddressByTokenIdByMakerAddress {
[makerAddress: string]: {
[erc721TokenAddress: string]: {
// Ideally erc721TokenId should be a BigNumber, but it's not a valid index type so we just convert it to a string before using it as an index
[erc721TokenId: string]: Set<string>;
};
};
}
/**
*/
export class DependentOrderHashesTracker {
private readonly _zrxTokenAddress: string;
// `_orderHashesByMakerAddress` is redundant and could be generated from
// `_orderHashesByERC20ByMakerAddress` and `_orderHashesByERC721AddressByTokenIdByMakerAddress`
// on the fly by merging all the entries together but it's more complex and computationally heavy.
// We might change that in future if we're move memory-constrained.
private readonly _orderHashesByMakerAddress: OrderHashesByMakerAddress = {};
private readonly _orderHashesByERC20ByMakerAddress: OrderHashesByERC20ByMakerAddress = {};
private readonly _orderHashesByERC721AddressByTokenIdByMakerAddress: OrderHashesByERC721AddressByTokenIdByMakerAddress = {};
constructor(zrxTokenAddress: string) {
this._zrxTokenAddress = zrxTokenAddress;
}
public getDependentOrderHashesByERC721ByMaker(makerAddress: string, tokenAddress: string): string[] {
const orderHashSets = _.values(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[makerAddress][tokenAddress],
);
const orderHashList = _.reduce(
orderHashSets,
(accumulator, orderHashSet) => [...accumulator, ...orderHashSet],
[] as string[],
);
const uniqueOrderHashList = _.uniq(orderHashList);
return uniqueOrderHashList;
}
public getDependentOrderHashesByMaker(makerAddress: string): string[] {
const dependentOrderHashes = Array.from(this._orderHashesByMakerAddress[makerAddress] || {});
return dependentOrderHashes;
}
public getDependentOrderHashesByAssetDataByMaker(makerAddress: string, assetData: string): string[] {
const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
const dependentOrderHashes =
decodedAssetData.assetProxyId === AssetProxyId.ERC20
? this._getDependentOrderHashesByERC20AssetData(makerAddress, assetData)
: this._getDependentOrderHashesByERC721AssetData(makerAddress, assetData);
return dependentOrderHashes;
}
public addToDependentOrderHashes(signedOrder: SignedOrder): void {
const decodedMakerAssetData = assetDataUtils.decodeAssetDataOrThrow(signedOrder.makerAssetData);
if (decodedMakerAssetData.assetProxyId === AssetProxyId.ERC20) {
this._addToERC20DependentOrderHashes(signedOrder, (decodedMakerAssetData as ERC20AssetData).tokenAddress);
} else {
this._addToERC721DependentOrderHashes(
signedOrder,
(decodedMakerAssetData as ERC721AssetData).tokenAddress,
(decodedMakerAssetData as ERC721AssetData).tokenId,
);
}
this._addToERC20DependentOrderHashes(signedOrder, this._zrxTokenAddress);
this._addToMakerDependentOrderHashes(signedOrder);
}
public removeFromDependentOrderHashes(signedOrder: SignedOrder): void {
const decodedMakerAssetData = assetDataUtils.decodeAssetDataOrThrow(signedOrder.makerAssetData);
if (decodedMakerAssetData.assetProxyId === AssetProxyId.ERC20) {
this._removeFromERC20DependentOrderhashes(
signedOrder,
(decodedMakerAssetData as ERC20AssetData).tokenAddress,
);
} else {
this._removeFromERC721DependentOrderhashes(
signedOrder,
(decodedMakerAssetData as ERC721AssetData).tokenAddress,
(decodedMakerAssetData as ERC721AssetData).tokenId,
);
}
// If makerToken === ZRX then we already removed it and we don't need to remove it again.
if ((decodedMakerAssetData as ERC20AssetData).tokenAddress !== this._zrxTokenAddress) {
this._removeFromERC20DependentOrderhashes(signedOrder, this._zrxTokenAddress);
}
this._removeFromMakerDependentOrderhashes(signedOrder);
}
private _getDependentOrderHashesByERC20AssetData(makerAddress: string, erc20AssetData: string): string[] {
const tokenAddress = assetDataUtils.decodeERC20AssetData(erc20AssetData).tokenAddress;
let dependentOrderHashes: string[] = [];
if (
!_.isUndefined(this._orderHashesByERC20ByMakerAddress[makerAddress]) &&
!_.isUndefined(this._orderHashesByERC20ByMakerAddress[makerAddress][tokenAddress])
) {
dependentOrderHashes = Array.from(this._orderHashesByERC20ByMakerAddress[makerAddress][tokenAddress]);
}
return dependentOrderHashes;
}
private _getDependentOrderHashesByERC721AssetData(makerAddress: string, erc721AssetData: string): string[] {
const tokenAddress = assetDataUtils.decodeERC721AssetData(erc721AssetData).tokenAddress;
const tokenId = assetDataUtils.decodeERC721AssetData(erc721AssetData).tokenId;
let dependentOrderHashes: string[] = [];
if (
!_.isUndefined(this._orderHashesByERC721AddressByTokenIdByMakerAddress[makerAddress]) &&
!_.isUndefined(this._orderHashesByERC721AddressByTokenIdByMakerAddress[makerAddress][tokenAddress]) &&
!_.isUndefined(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[makerAddress][tokenAddress][tokenId.toString()],
)
) {
dependentOrderHashes = Array.from(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[makerAddress][tokenAddress][tokenId.toString()],
);
}
return dependentOrderHashes;
}
private _addToERC20DependentOrderHashes(signedOrder: SignedOrder, erc20TokenAddress: string): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
if (_.isUndefined(this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress])) {
this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress] = {};
}
if (_.isUndefined(this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress])) {
this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress] = new Set();
}
this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress].add(orderHash);
}
private _addToERC721DependentOrderHashes(
signedOrder: SignedOrder,
erc721TokenAddress: string,
tokenId: BigNumber,
): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
if (_.isUndefined(this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress])) {
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress] = {};
}
if (
_.isUndefined(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress],
)
) {
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress] = {};
}
if (
_.isUndefined(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress][
tokenId.toString()
],
)
) {
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress][
tokenId.toString()
] = new Set();
}
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress][
tokenId.toString()
].add(orderHash);
}
private _addToMakerDependentOrderHashes(signedOrder: SignedOrder): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
if (_.isUndefined(this._orderHashesByMakerAddress[signedOrder.makerAddress])) {
this._orderHashesByMakerAddress[signedOrder.makerAddress] = new Set();
}
this._orderHashesByMakerAddress[signedOrder.makerAddress].add(orderHash);
}
private _removeFromERC20DependentOrderhashes(signedOrder: SignedOrder, erc20TokenAddress: string): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress].delete(orderHash);
if (_.isEmpty(this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress])) {
delete this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress][erc20TokenAddress];
}
if (_.isEmpty(this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress])) {
delete this._orderHashesByERC20ByMakerAddress[signedOrder.makerAddress];
}
}
private _removeFromERC721DependentOrderhashes(
signedOrder: SignedOrder,
erc721TokenAddress: string,
tokenId: BigNumber,
): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress][
tokenId.toString()
].delete(orderHash);
if (
_.isEmpty(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress][
tokenId.toString()
],
)
) {
delete this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][
erc721TokenAddress
][tokenId.toString()];
}
if (
_.isEmpty(
this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][erc721TokenAddress],
)
) {
delete this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress][
erc721TokenAddress
];
}
if (_.isEmpty(this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress])) {
delete this._orderHashesByERC721AddressByTokenIdByMakerAddress[signedOrder.makerAddress];
}
}
private _removeFromMakerDependentOrderhashes(signedOrder: SignedOrder): void {
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
this._orderHashesByMakerAddress[signedOrder.makerAddress].delete(orderHash);
if (_.isEmpty(this._orderHashesByMakerAddress[signedOrder.makerAddress])) {
delete this._orderHashesByMakerAddress[signedOrder.makerAddress];
}
}
}
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