Merge pull request #78 from IndigoProtocol/sluder/splash-dex

Splash

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 All notable changes to Dexter will be documented in this file.
 
+## [v5.4.9]
+- Splash integration
+
 ## [v5.4.0]
 - SundaeSwap v3 integration
 

README.md

@@ -8,8 +8,7 @@
     <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/wingriders.png" width="30" />
     <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/wingridersv2.png" width="30" />
     <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/vyfinance.png" width="30" />
-    <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/teddyswap.png" width="30" />
-    <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/spectrum.png" width="30" />
+    <img src="https://raw.githubusercontent.com/IndigoProtocol/dexter/master/src/dex/logo/splash.png" width="30" />
 </div>
 
 ### What You Can Do

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@indigo-labs/dexter",
-  "version": "5.4.8",
+  "version": "5.4.9",
   "license": "MIT",
   "author": "Zachary Sluder",
   "keywords": [
@@ -22,11 +22,15 @@
     "prepublishOnly": "npm run test"
   },
   "dependencies": {
+    "@types/blake2b": "^2.1.3",
     "@types/crypto-js": "^4.1.1",
     "axios": "^0.26.1",
     "axios-retry": "^3.5.1",
+    "blake2b": "^2.1.4",
     "bottleneck": "^2.19.5",
     "crypto-js": "^4.1.1",
+    "int64-buffer": "^1.0.1",
+    "js-encoding-utils": "^0.7.3",
     "lodash": "^4.17.21",
     "lucid-cardano": "^0.10.9"
   },

src/constants.ts

@@ -18,6 +18,7 @@ export enum DatumParameterKey {
   /**
    * Swap/wallet info.
    */
+  Address = 'Address',
   SenderPubKeyHash = 'SenderPubKeyHash',
   SenderStakingKeyHash = 'SenderStakingKeyHash',
   SenderKeyHashes = 'SenderKeyHashes',
@@ -32,6 +33,10 @@ export enum DatumParameterKey {
   Expiration = 'Expiration',
   AllowPartialFill = 'AllowPartialFill',
   Direction = 'Direction',
+  FeePaymentKeyHash = 'FeePaymentKeyHash',
+  Beacon = 'Beacon',
+  Batcher = 'Batcher',
+  InToken = 'InToken',
 
   /**
    * Trading fees.
@@ -41,6 +46,7 @@ export enum DatumParameterKey {
   DepositFee = 'DepositFee',
   ScooperFee = 'ScooperFee',
   BaseFee = 'BaseFee',
+  ExecutionFee = 'ExecutionFee',
   FeeSharingNumerator = 'FeeSharingNumerator',
   OpeningFee = 'OpeningFee',
   FinalFee = 'FinalFee',

src/dex/api/splash-api.ts

@@ -0,0 +1,77 @@
+import { BaseApi } from './base-api';
+import { Asset, Token } from '../models/asset';
+import { LiquidityPool } from '../models/liquidity-pool';
+import axios, { AxiosInstance } from 'axios';
+import { RequestConfig } from '@app/types';
+import { appendSlash } from '@app/utils';
+import { Splash } from '@dex/splash';
+
+const MAX_INT: bigint = 9_223_372_036_854_775_807n;
+
+export class SplashApi extends BaseApi {
+
+    protected readonly api: AxiosInstance;
+    protected readonly dex: Splash;
+
+    constructor(dex: Splash, requestConfig: RequestConfig) {
+        super();
+
+        this.dex = dex;
+
+        this.api = axios.create({
+            timeout: requestConfig.timeout,
+            baseURL: `${appendSlash(requestConfig.proxyUrl)}https://api5.splash.trade/platform-api/v1/`,
+            withCredentials: false,
+        });
+    }
+
+    async liquidityPools(assetA: Token, assetB?: Token): Promise<LiquidityPool[]> {
+        const assets: any = (await this.assets()).data['tokens'];
+
+        return this.api.get('/pools/overview?verified=false&duplicated=false').then((response: any) => {
+            return response.data.map((pool: any) => this.liquidityPoolFromResponse(pool, assets)) as LiquidityPool[];
+        });
+    }
+
+    private liquidityPoolFromResponse(poolData: any, assets: any): LiquidityPool {
+        poolData = poolData.pool;
+
+        const tokenA: Token = poolData.x.asset === '.'
+            ? 'lovelace'
+            : new Asset(poolData.x.asset.split('.')[0], poolData.x.asset.split('.')[1]);
+        const tokenB = poolData.y.asset === '.'
+            ? 'lovelace'
+            : new Asset(poolData.y.asset.split('.')[0], poolData.y.asset.split('.')[1]);
+
+        if (tokenA !== 'lovelace' && tokenA.identifier('.') in assets) {
+            tokenA.decimals = assets[tokenA.identifier('.')].decimals;
+        }
+        if (tokenB !== 'lovelace' && tokenB.identifier('.') in assets) {
+            tokenB.decimals = assets[tokenB.identifier('.')].decimals;
+        }
+
+        const liquidityPool: LiquidityPool = new LiquidityPool(
+            Splash.identifier,
+            tokenA,
+            tokenB,
+            BigInt(poolData['x']['amount']) - BigInt(poolData['treasuryX']),
+            BigInt(poolData['y']['amount']) - BigInt(poolData['treasuryY']),
+            '',
+            '',
+            '',
+        );
+
+        const [lpTokenPolicyId, lpTokenAssetName] = poolData['lq']['asset'].split('.');
+
+        liquidityPool.lpToken = new Asset(lpTokenPolicyId, lpTokenAssetName);
+        liquidityPool.totalLpTokens = MAX_INT - BigInt(poolData['lq']['amount']);
+        liquidityPool.identifier = poolData['id'];
+
+        return liquidityPool;
+    }
+
+    private assets(): Promise<any> {
+        return axios.get('https://spectrum.fi/cardano-token-list-v2.json');
+    }
+
+}

src/dex/base-dex.ts

@@ -47,7 +47,7 @@ export abstract class BaseDex {
     /**
      * Craft a swap order for this DEX.
      */
-    abstract buildSwapOrder(liquidityPool: LiquidityPool, swapParameters: DatumParameters, spendUtxos?: SpendUTxO[]): Promise<PayToAddress[]>;
+    abstract buildSwapOrder(liquidityPool: LiquidityPool, swapParameters: DatumParameters, spendUtxos?: SpendUTxO[], dataProvider?: BaseDataProvider): Promise<PayToAddress[]>;
 
     /**
      * Craft a swap order cancellation for this DEX.