add xfai

adapters/xfai/package.json

@@ -0,0 +1,37 @@
+{
+  "name": "xfai",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "../dist/xfai/src/index.js",
+    "compile": "tsc",
+    "watch": "tsc -w",
+    "clear": "rm -rf dist"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@ethersproject/providers": "^5.7.2",
+    "@types/big.js": "^6.2.2",
+    "@types/lodash": "^4.17.0",
+    "@types/pg": "^8.11.5",
+    "big.js": "^6.2.1",
+    "bignumber.js": "^9.1.2",
+    "csv-parser": "^3.0.0",
+    "decimal.js-light": "^2.5.1",
+    "ethers": "^5.7.2",
+    "fast-csv": "^5.0.1",
+    "jsbi": "^4.3.0",
+    "lodash": "^4.17.21",
+    "pg": "^8.11.5",
+    "tiny-invariant": "^1.3.1",
+    "toformat": "^2.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.11.17",
+    "typescript": "^5.3.3"
+  }
+}

adapters/xfai/src/config.ts

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+export const CHAIN_ID = 59144;
+export const RPC_URL = "https://rpc.linea.build";
+export const LIQUIDITY_EVENTS_DB =
+  "postgres://mobula_readonly:[email protected]:5432/xfai-logs?sslmode=no-verify";
+export const XFAI_FACTORY = "0xa5136eAd459F0E61C99Cec70fe8F5C24cF3ecA26";
+export const XFAI_POOL_INIT =
+  "0xd29425d309539268aa2f934062f86ea332822e787dafc6baba7cfda029630330";
+export const MULTICALL = "0xca11bde05977b3631167028862be2a173976ca11";
+export const WETH = "0xe5D7C2a44FfDDf6b295A15c148167daaAf5Cf34f";

adapters/xfai/src/index.ts

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+import { Client } from "pg";
+import {
+  CHAIN_ID,
+  LIQUIDITY_EVENTS_DB,
+  RPC_URL,
+  WETH,
+  XFAI_FACTORY,
+  XFAI_POOL_INIT,
+} from "./config";
+import { keccak256, pack } from "@ethersproject/solidity";
+import { uniq } from "lodash";
+import { multicall } from "./sdk/mutlicall";
+import { IXfaiPool__factory } from "./sdk/factories/IXfaiPool__factory";
+import { getCreate2Address } from "ethers/lib/utils";
+import { StaticJsonRpcProvider } from "@ethersproject/providers";
+import { format, write } from "@fast-csv/format";
+import { time } from "console";
+import { createWriteStream } from "fs";
+function getPoolAddressFromTokenAddress(tokenAddress: string): string {
+  return getCreate2Address(
+    XFAI_FACTORY,
+    keccak256(["bytes"], [pack(["address"], [tokenAddress])]),
+    XFAI_POOL_INIT
+  );
+}
+
+async function getDBConnection() {
+  const client = new Client(LIQUIDITY_EVENTS_DB);
+  await client.connect();
+  return client;
+}
+
+async function getProvider() {
+  const provider = new StaticJsonRpcProvider(RPC_URL, CHAIN_ID);
+  await provider.ready;
+  return provider;
+}
+
+type ChangedLiquidity = {
+  owner: string;
+  token: string;
+  liquidity: number;
+  timestamp: Date;
+  blockNumber: bigint;
+};
+
+async function main(blockNumber: number) {
+  const client = await getDBConnection();
+  const provider = await getProvider();
+  const liquidities = await client.query<ChangedLiquidity>({
+    text: `
+    SELECT owner,
+    token,
+    max("blockNumber")               as "blockNumber",
+    to_timestamp(max("date") / 1000) as "timestamp",
+    sum(liquidity)                   as liquidity
+    FROM "LiquidityTrace"
+    WHERE     "blockNumber" <= $1 
+          AND LOWER("token")  != LOWER($2)
+    GROUP BY "owner", "token"
+    HAVING sum(liquidity) > 0;`,
+    values: [blockNumber, WETH],
+  });
+  const pgSqlShutdown = client.end();
+
+  const liquiditiesRows = liquidities.rows.map((r) => ({
+    ...r,
+    pool: getPoolAddressFromTokenAddress(r.token),
+    liquidity: BigInt(r.liquidity),
+  }));
+
+  const pools: string[] = uniq(liquiditiesRows.map(({ pool }) => pool));
+
+  const poolReserves = await multicall(
+    provider,
+    IXfaiPool__factory,
+    pools.map((p) => ({
+      arguments: [],
+      contractAddress: p,
+      function_name: "getStates",
+    })),
+    {
+      allowFailure: false,
+      callOverrides: {
+        blockTag: blockNumber,
+      },
+    }
+  );
+  const poolSupplies = await multicall(
+    provider,
+    IXfaiPool__factory,
+    pools.map((p) => ({
+      arguments: [],
+      contractAddress: p,
+      function_name: "totalSupply",
+    })),
+    {
+      allowFailure: false,
+      callOverrides: {
+        blockTag: blockNumber,
+      },
+    }
+  );
+
+  const poolRes = Object.fromEntries(
+    Object.entries(poolReserves).map(([pool, [reserve, ethReserve]]) => [
+      pool,
+      {
+        reserve,
+        ethReserve,
+      },
+    ])
+  );
+
+  const result = liquiditiesRows.flatMap(
+    ({
+      owner,
+      token,
+      pool: poolAddress,
+      liquidity,
+      blockNumber,
+      timestamp,
+    }) => {
+      const poolSupply = poolSupplies[poolAddress];
+      const poolReserve = poolRes[poolAddress];
+      const tokenBalance =
+        (liquidity * poolReserve.reserve.toBigInt()) / poolSupply.toBigInt();
+      const ethBalance =
+        (liquidity * poolReserve.ethReserve.toBigInt()) / poolSupply.toBigInt();
+      return [
+        // Token reserve
+        {
+          user_address: owner,
+          token_address: token,
+          token_symbol: "",
+          token_balance: tokenBalance,
+          blockNumber,
+          timestamp: timestamp.toISOString(),
+        },
+        // WETH Reserve
+        {
+          user_address: owner,
+          token_address: WETH,
+          token_symbol: "WETH",
+          token_balance: ethBalance,
+          blockNumber,
+          timestamp: timestamp.toISOString(),
+        },
+      ];
+    }
+  );
+  await Promise.all([pgSqlShutdown]);
+
+  return result;
+}
+
+const ws = createWriteStream("outputData.csv");
+
+main(1140957)
+  .then((r) => {
+    write(r, { headers: true })
+      .pipe(ws)
+      .on("finish", () => {
+        ws.close();
+        console.log("CSV file has been written.");
+      });
+  })
+  .catch((e) => console.error(e));