Chore: adding xSigma liquidity source [TKR-59] (#201)

* Chore: adding xSigma liquidity source

* fix: prettier

packages/asset-swapper/src/utils/market_operation_utils/bridge_source_utils.ts

@@ -29,6 +29,7 @@ import {
     SUSHISWAP_ROUTER_BY_CHAIN_ID,
     SWERVE_MAINNET_INFOS,
     UNISWAPV2_ROUTER_BY_CHAIN_ID,
+    XSIGMA_MAINNET_INFOS,
 } from './constants';
 import { CurveInfo, ERC20BridgeSource } from './types';
 
@@ -203,6 +204,19 @@ export function getSaddleInfosForPair(chainId: ChainId, takerToken: string, make
     );
 }
 
+export function getXSigmaInfosForPair(chainId: ChainId, takerToken: string, makerToken: string): CurveInfo[] {
+    if (chainId !== ChainId.Mainnet) {
+        return [];
+    }
+    return Object.values(XSIGMA_MAINNET_INFOS).filter(c =>
+        [makerToken, takerToken].every(
+            t =>
+                (c.tokens.includes(t) && c.metaToken === undefined) ||
+                (c.tokens.includes(t) && c.metaToken !== undefined && [makerToken, takerToken].includes(c.metaToken)),
+        ),
+    );
+}
+
 export function getShellLikeInfosForPair(
     chainId: ChainId,
     takerToken: string,
@@ -231,7 +245,8 @@ export function getCurveLikeInfosForPair(
         | ERC20BridgeSource.Belt
         | ERC20BridgeSource.Ellipsis
         | ERC20BridgeSource.Smoothy
-        | ERC20BridgeSource.Saddle,
+        | ERC20BridgeSource.Saddle
+        | ERC20BridgeSource.XSigma,
 ): CurveInfo[] {
     switch (source) {
         case ERC20BridgeSource.Curve:
@@ -250,6 +265,8 @@ export function getCurveLikeInfosForPair(
             return getSmoothyInfosForPair(chainId, takerToken, makerToken);
         case ERC20BridgeSource.Saddle:
             return getSaddleInfosForPair(chainId, takerToken, makerToken);
+        case ERC20BridgeSource.XSigma:
+            return getXSigmaInfosForPair(chainId, takerToken, makerToken);
         default:
             throw new Error(`Unknown Curve like source ${source}`);
     }

packages/asset-swapper/src/utils/market_operation_utils/constants.ts

@@ -86,6 +86,7 @@ export const SELL_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.Smoothy,
             ERC20BridgeSource.Component,
             ERC20BridgeSource.Saddle,
+            ERC20BridgeSource.XSigma,
         ]),
         [ChainId.Ropsten]: new SourceFilters([
             ERC20BridgeSource.Kyber,
@@ -152,6 +153,7 @@ export const BUY_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.Smoothy,
             ERC20BridgeSource.Component,
             ERC20BridgeSource.Saddle,
+            ERC20BridgeSource.XSigma,
         ]),
         [ChainId.Ropsten]: new SourceFilters([
             ERC20BridgeSource.Kyber,
@@ -377,6 +379,10 @@ export const ELLIPSIS_POOLS = {
     threePool: '0x160caed03795365f3a589f10c379ffa7d75d4e76',
 };
 
+export const XSIGMA_POOLS = {
+    stable: '0x3333333ACdEdBbC9Ad7bda0876e60714195681c5',
+};
+
 export const DEFAULT_INTERMEDIATE_TOKENS_BY_CHAIN_ID = valueByChainId<string[]>(
     {
         [ChainId.Mainnet]: [
@@ -684,6 +690,14 @@ export const ELLIPSIS_BSC_INFOS: { [name: string]: CurveInfo } = {
     }),
 };
 
+export const XSIGMA_MAINNET_INFOS: { [name: string]: CurveInfo } = {
+    [XSIGMA_POOLS.stable]: createCurveExchangePool({
+        tokens: [MAINNET_TOKENS.DAI, MAINNET_TOKENS.USDC, MAINNET_TOKENS.USDT],
+        pool: XSIGMA_POOLS.stable,
+        gasSchedule: 150e3,
+    }),
+};
+
 // Curve pools like using custom selectors
 export const SADDLE_MAINNET_INFOS: { [name: string]: CurveInfo } = {
     [SADDLE_POOLS.stables]: {
@@ -1080,6 +1094,7 @@ export const DEFAULT_GAS_SCHEDULE: Required<FeeSchedule> = {
     [ERC20BridgeSource.Ellipsis]: fillData => (fillData as CurveFillData).pool.gasSchedule,
     [ERC20BridgeSource.Smoothy]: fillData => (fillData as CurveFillData).pool.gasSchedule,
     [ERC20BridgeSource.Saddle]: fillData => (fillData as CurveFillData).pool.gasSchedule,
+    [ERC20BridgeSource.XSigma]: fillData => (fillData as CurveFillData).pool.gasSchedule,
     [ERC20BridgeSource.MultiBridge]: () => 350e3,
     [ERC20BridgeSource.UniswapV2]: (fillData?: FillData) => {
         // TODO: Different base cost if to/from ETH.

packages/asset-swapper/src/utils/market_operation_utils/orders.ts

@@ -136,6 +136,8 @@ export function getErc20BridgeSourceToBridgeSource(source: ERC20BridgeSource): s
             return encodeBridgeSourceId(BridgeProtocol.Curve, 'Smoothy');
         case ERC20BridgeSource.Saddle:
             return encodeBridgeSourceId(BridgeProtocol.Nerve, 'Saddle');
+        case ERC20BridgeSource.XSigma:
+            return encodeBridgeSourceId(BridgeProtocol.Curve, 'xSigma');
         case ERC20BridgeSource.ApeSwap:
             return encodeBridgeSourceId(BridgeProtocol.UniswapV2, 'ApeSwap');
         case ERC20BridgeSource.CafeSwap:
@@ -173,6 +175,7 @@ export function createBridgeDataForBridgeOrder(order: OptimizedMarketBridgeOrder
         case ERC20BridgeSource.Ellipsis:
         case ERC20BridgeSource.Smoothy:
         case ERC20BridgeSource.Saddle:
+        case ERC20BridgeSource.XSigma:
             const curveFillData = (order as OptimizedMarketBridgeOrder<CurveFillData>).fillData;
             bridgeData = encoder.encode([
                 curveFillData.pool.poolAddress,
@@ -328,6 +331,7 @@ export const BRIDGE_ENCODERS: {
     [ERC20BridgeSource.Ellipsis]: curveEncoder,
     [ERC20BridgeSource.Smoothy]: curveEncoder,
     [ERC20BridgeSource.Saddle]: curveEncoder,
+    [ERC20BridgeSource.XSigma]: curveEncoder,
     // UniswapV2 like, (router, address[])
     [ERC20BridgeSource.Bancor]: routerAddressPathEncoder,
     [ERC20BridgeSource.UniswapV2]: routerAddressPathEncoder,

packages/asset-swapper/src/utils/market_operation_utils/sampler_operations.ts

@@ -1132,6 +1132,7 @@ export class SamplerOperations {
                         case ERC20BridgeSource.Belt:
                         case ERC20BridgeSource.Ellipsis:
                         case ERC20BridgeSource.Saddle:
+                        case ERC20BridgeSource.XSigma:
                             return getCurveLikeInfosForPair(this.chainId, takerToken, makerToken, source).map(pool =>
                                 this.getCurveSellQuotes(
                                     pool,
@@ -1346,6 +1347,7 @@ export class SamplerOperations {
                         case ERC20BridgeSource.Belt:
                         case ERC20BridgeSource.Ellipsis:
                         case ERC20BridgeSource.Saddle:
+                        case ERC20BridgeSource.XSigma:
                             return getCurveLikeInfosForPair(this.chainId, takerToken, makerToken, source).map(pool =>
                                 this.getCurveBuyQuotes(
                                     pool,

packages/asset-swapper/src/utils/market_operation_utils/types.ts

@@ -63,6 +63,7 @@ export enum ERC20BridgeSource {
     Smoothy = 'Smoothy',
     Component = 'Component',
     Saddle = 'Saddle',
+    XSigma = 'xSigma',
     // BSC only
     PancakeSwap = 'PancakeSwap',
     PancakeSwapV2 = 'PancakeSwap_V2',