1 files changed, 0 insertions, 91 deletions
diff --git a/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts b/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
deleted file mode 100644
index c35b24664..000000000
--- a/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
+++ /dev/null
@@ -1,91 +0,0 @@
-import { AbstractBalanceAndProxyAllowanceFetcher, assetDataUtils } from '@0x/order-utils';
-import { BigNumber } from '@0x/utils';
-import { BlockParamLiteral } from 'ethereum-types';
-import * as _ from 'lodash';
-
-import { ERC20TokenWrapper } from '../contract_wrappers/erc20_token_wrapper';
-import { ERC721TokenWrapper } from '../contract_wrappers/erc721_token_wrapper';
-
-export class AssetBalanceAndProxyAllowanceFetcher implements AbstractBalanceAndProxyAllowanceFetcher {
-    private readonly _erc20Token: ERC20TokenWrapper;
-    private readonly _erc721Token: ERC721TokenWrapper;
-    private readonly _stateLayer: BlockParamLiteral;
-    constructor(erc20Token: ERC20TokenWrapper, erc721Token: ERC721TokenWrapper, stateLayer: BlockParamLiteral) {
-        this._erc20Token = erc20Token;
-        this._erc721Token = erc721Token;
-        this._stateLayer = stateLayer;
-    }
-    public async getBalanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
-        const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
-        let balance: BigNumber | undefined;
-        if (assetDataUtils.isERC20AssetData(decodedAssetData)) {
-            balance = await this._erc20Token.getBalanceAsync(decodedAssetData.tokenAddress, userAddress, {
-                defaultBlock: this._stateLayer,
-            });
-        } else if (assetDataUtils.isERC721AssetData(decodedAssetData)) {
-            const tokenOwner = await this._erc721Token.getOwnerOfAsync(
-                decodedAssetData.tokenAddress,
-                decodedAssetData.tokenId,
-                {
-                    defaultBlock: this._stateLayer,
-                },
-            );
-            balance = tokenOwner === userAddress ? new BigNumber(1) : new BigNumber(0);
-        } else if (assetDataUtils.isMultiAssetData(decodedAssetData)) {
-            // The `balance` for MultiAssetData is the total units of the entire `assetData` that are held by the `userAddress`.
-            for (const [index, nestedAssetDataElement] of decodedAssetData.nestedAssetData.entries()) {
-                const nestedAmountElement = decodedAssetData.amounts[index];
-                const nestedAssetBalance = (await this.getBalanceAsync(
-                    nestedAssetDataElement,
-                    userAddress,
-                )).dividedToIntegerBy(nestedAmountElement);
-                if (_.isUndefined(balance) || nestedAssetBalance.isLessThan(balance)) {
-                    balance = nestedAssetBalance;
-                }
-            }
-        }
-        return balance as BigNumber;
-    }
-    public async getProxyAllowanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
-        const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
-        let proxyAllowance: BigNumber | undefined;
-        if (assetDataUtils.isERC20AssetData(decodedAssetData)) {
-            proxyAllowance = await this._erc20Token.getProxyAllowanceAsync(decodedAssetData.tokenAddress, userAddress, {
-                defaultBlock: this._stateLayer,
-            });
-        } else if (assetDataUtils.isERC721AssetData(decodedAssetData)) {
-            const isApprovedForAll = await this._erc721Token.isProxyApprovedForAllAsync(
-                decodedAssetData.tokenAddress,
-                userAddress,
-                {
-                    defaultBlock: this._stateLayer,
-                },
-            );
-            if (isApprovedForAll) {
-                return new BigNumber(this._erc20Token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
-            } else {
-                const isApproved = await this._erc721Token.isProxyApprovedAsync(
-                    decodedAssetData.tokenAddress,
-                    decodedAssetData.tokenId,
-                    {
-                        defaultBlock: this._stateLayer,
-                    },
-                );
-                proxyAllowance = isApproved ? new BigNumber(1) : new BigNumber(0);
-            }
-        } else if (assetDataUtils.isMultiAssetData(decodedAssetData)) {
-            // The `proxyAllowance` for MultiAssetData is the total units of the entire `assetData` that the proxies have been approved to spend by the `userAddress`.
-            for (const [index, nestedAssetDataElement] of decodedAssetData.nestedAssetData.entries()) {
-                const nestedAmountElement = decodedAssetData.amounts[index];
-                const nestedAssetAllowance = (await this.getProxyAllowanceAsync(
-                    nestedAssetDataElement,
-                    userAddress,
-                )).dividedToIntegerBy(nestedAmountElement);
-                if (_.isUndefined(proxyAllowance) || nestedAssetAllowance.isLessThan(proxyAllowance)) {
-                    proxyAllowance = nestedAssetAllowance;
-                }
-            }
-        }
-        return proxyAllowance as BigNumber;
-    }
-}