Add snowbridge (#405)

* Add snowbridge

* Fix the adapter

* Add TRAC

* Add supported assets

* Add git ignore

* Update site url

Author: yrong

.gitignore

@@ -26,4 +26,6 @@ src/utils/filljobs2.ts
 
 .vscoded
 
-dist
+dist
+
+.vscode

src/adapters/index.ts

@@ -96,6 +96,7 @@ import pheasantNetwork from "./pheasant-network";
 import teleswap from "./teleswap";
 import agglayer from "./agglayer";
 import fxrp from "./flare/fxrp";
+import snowbridge from "./snowbridge";
 
 export default {
   polygon,
@@ -195,6 +196,7 @@ export default {
   teleswap,
   agglayer,
   fxrp,
+  snowbridge,
 } as {
   [bridge: string]: BridgeAdapter | AsyncBridgeAdapter;
 };

src/adapters/snowbridge/index.ts

@@ -0,0 +1,145 @@
+import { BridgeAdapter, PartialContractEventParams } from "../../helpers/bridgeAdapter.type";
+import { Chain } from "@defillama/sdk/build/general";
+import { getTxDataFromEVMEventLogs } from "../../helpers/processTransactions";
+import { BigNumber } from "ethers";
+
+const contractAddresses = {
+  ethereum: {
+    gateway: "0x27ca963c279c93801941e1eb8799c23f407d68e7", // Gateway address
+    agent: "0xd803472c47a87D7B63E888DE53f03B4191B846a8", // Agent address
+    tokens: [
+      {
+        token: "0xaa7a9ca87d3694b5755f213b5d04094b8d0f0a6f", // TracToken
+      },
+      {
+        token: "0xba41ddf06b7ffd89d1267b5a93bfef2424eb2003", // MYTH
+      },
+      {
+        token: "0x18084fba666a33d37592fa2633fd49a74dd93a88", // tBTC v2
+      },
+      {
+        token: "0x7f39c581f595b53c5cb19bd0b3f8da6c935e2ca0", // wstETH
+      },
+      {
+        token: "0x45804880De22913dAFE09f4980848ECE6EcbAf78", // PAXG
+      },
+      {
+        token: "0x514910771af9ca656af840dff83e8264ecf986ca", // LINK
+      },
+      {
+        token: "0x7fc66500c84a76ad7e9c93437bfc5ac33e2ddae9", // AAVE
+      },
+      {
+        token: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2", // WETH
+      },
+      {
+        token: "0x9D39A5DE30e57443BfF2A8307A4256c8797A3497", // SUSDE
+      },
+      {
+        token: "0x5a98fcbea516cf06857215779fd812ca3bef1b32", // LDO
+      },
+      {
+        token: "0x5d3d01fd6d2ad1169b17918eb4f153c6616288eb", // KILT
+      },
+      {
+        token: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", // USDC
+      },
+      {
+        token: "0xdac17f958d2ee523a2206206994597c13d831ec7", // USDT
+      },
+      {
+        token: "0x56072C95FAA701256059aa122697B133aDEd9279", // SKY
+      },
+      {
+        token: "0x57e114B691Db790C35207b2e685D4A43181e6061", // ENA
+      },
+      {
+        token: "0x2260fac5e5542a773aa44fbcfedf7c193bc2c599", // WBTC
+      },
+    ],
+  },
+} as {
+  [chain: string]: {
+    gateway: string;
+    agent: string;
+    tokens: { token: string }[];
+  };
+};
+
+const depositParams: PartialContractEventParams = {
+  target: "",
+  topic: "Transfer(address,address,uint256)",
+  abi: ["event Transfer(address indexed from, address indexed to, uint256 value)"],
+  logKeys: {
+    blockNumber: "blockNumber",
+    txHash: "transactionHash",
+  },
+  argKeys: {
+    amount: "value",
+    from: "from",
+    to: "to",
+  },
+  argGetters: {
+    amount: (log: any) => BigNumber.from(log.value),
+  },
+  fixedEventData: {
+    token: "",
+  },
+  isDeposit: true,
+};
+
+const withdrawalParams: PartialContractEventParams = {
+  target: "",
+  topic: "Transfer(address,address,uint256)",
+  abi: ["event Transfer(address indexed from, address indexed to, uint256 value)"],
+  logKeys: {
+    blockNumber: "blockNumber",
+    txHash: "transactionHash",
+  },
+  argKeys: {
+    amount: "value",
+    from: "from",
+    to: "to",
+  },
+  fixedEventData: {
+    token: "",
+  },
+  isDeposit: false,
+};
+
+const constructParams = (chain: string) => {
+  let eventParams: PartialContractEventParams[] = [];
+
+  const contractAddressesForChain = contractAddresses[chain];
+  const gateway = contractAddressesForChain?.gateway;
+  const agent = contractAddressesForChain?.agent;
+  const tokens = contractAddressesForChain?.tokens || [];
+
+  tokens.map(({ token }) => {
+    const tokenDepositParams: PartialContractEventParams = {
+      ...depositParams,
+      target: token,
+      filter: { includeTo: [agent] },
+      fixedEventData: { ...depositParams.fixedEventData, token: token },
+    };
+    const tokenWithdrawalParams: PartialContractEventParams = {
+      ...withdrawalParams,
+      target: token,
+      isDeposit: false,
+      filter: { includeFrom: [agent] },
+      fixedEventData: { ...withdrawalParams.fixedEventData, token: token },
+    };
+    eventParams.push(tokenDepositParams, tokenWithdrawalParams);
+  });
+
+  // Return a function to fetch transaction data from event logs
+  return async (fromBlock: number, toBlock: number) =>
+    getTxDataFromEVMEventLogs("snowbridge", chain as Chain, fromBlock, toBlock, eventParams);
+};
+
+// Step 6: Export the adapter
+const adapter: BridgeAdapter = Object.fromEntries(
+  Object.keys(contractAddresses).map((chain) => [chain, constructParams(chain)])
+);
+
+export default adapter;

src/data/bridgeNetworkData.ts

@@ -2455,7 +2455,6 @@ export default [
     },
   },
   {
-    id: 96,
     displayName: "Chainlink CCIP",
     bridgeDbName: "ccip",
     iconLink: "icons:chainlink",
@@ -2583,4 +2582,15 @@ export default [
     chains: ["Flare", "XRPL"],
     destinationChain: "XRPL",
   },
+  {
+    id: 101,
+    displayName: "Snowbridge",
+    bridgeDbName: "snowbridge",
+    iconLink: "icons:snowbridge",
+    slug: "snowbridge",
+    largeTxThreshold: 10000,
+    url: "https://app.snowbridge.network/",
+    chains: ["Polkadot", "Ethereum"],
+    destinationChain: "Ethereum",
+  },
 ] as BridgeNetwork[];