add tss swap back

omnichain/swap/.eslintignore

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+.yarn
+artifacts
+cache
+coverage
+node_modules
+typechain-types

omnichain/swap/.eslintrc.js

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+const path = require("path");
+
+/**
+ * @type {import("eslint").Linter.Config}
+ */
+module.exports = {
+  env: {
+    browser: false,
+    es2021: true,
+    mocha: true,
+    node: true,
+  },
+  extends: ["plugin:prettier/recommended"],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaVersion: 12,
+  },
+  plugins: [
+    "@typescript-eslint",
+    "prettier",
+    "simple-import-sort",
+    "sort-keys-fix",
+    "typescript-sort-keys",
+  ],
+  rules: {
+    "@typescript-eslint/sort-type-union-intersection-members": "error",
+    camelcase: "off",
+    "simple-import-sort/exports": "error",
+    "simple-import-sort/imports": "error",
+    "sort-keys-fix/sort-keys-fix": "error",
+    "typescript-sort-keys/interface": "error",
+    "typescript-sort-keys/string-enum": "error",
+  },
+  settings: {
+    "import/parsers": {
+      "@typescript-eslint/parser": [".js", ".jsx", ".ts", ".tsx", ".d.ts"],
+    },
+    "import/resolver": {
+      node: {
+        extensions: [".js", ".jsx", ".ts", ".tsx", ".d.ts"],
+      },
+      typescript: {
+        project: path.join(__dirname, "tsconfig.json"),
+      },
+    },
+  },
+};

omnichain/swap/.gitignore

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+node_modules
+.env
+coverage
+coverage.json
+typechain
+typechain-types
+dependencies
+
+# Hardhat files
+cache
+artifacts
+
+# Foundry files
+out
+cache_forge
+
+access_token

omnichain/swap/LICENSE

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+MIT License
+
+Copyright (c) 2023 ZetaChain
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

omnichain/swap/README.md

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+# ZetaChain Contracts Template
+
+## Getting Started
+
+Install dependencies:
+
+```
+yarn
+```
+
+## Next Steps
+
+Ready to dive in? Follow our [**🚀 smart contract
+tutorials**](https://www.zetachain.com/docs/developers/tutorials/intro/) to
+start building universal app contracts.

omnichain/swap/contracts/Swap.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.7;
+
+import "@zetachain/protocol-contracts/contracts/zevm/SystemContract.sol";
+import "@zetachain/protocol-contracts/contracts/zevm/interfaces/zContract.sol";
+import "@zetachain/toolkit/contracts/SwapHelperLib.sol";
+import "@zetachain/toolkit/contracts/BytesHelperLib.sol";
+import "@zetachain/toolkit/contracts/OnlySystem.sol";
+
+contract Swap is zContract, OnlySystem {
+    SystemContract public systemContract;
+    uint256 constant BITCOIN = 18332;
+
+    constructor(address systemContractAddress) {
+        systemContract = SystemContract(systemContractAddress);
+    }
+
+    struct Params {
+        address target;
+        bytes to;
+    }
+
+    function onCrossChainCall(
+        zContext calldata context,
+        address zrc20,
+        uint256 amount,
+        bytes calldata message
+    ) external virtual override onlySystem(systemContract) {
+        Params memory params = Params({target: address(0), to: bytes("")});
+
+        if (context.chainID == BITCOIN) {
+            params.target = BytesHelperLib.bytesToAddress(message, 0);
+            params.to = abi.encodePacked(
+                BytesHelperLib.bytesToAddress(message, 20)
+            );
+        } else {
+            (address targetToken, bytes memory recipient) = abi.decode(
+                message,
+                (address, bytes)
+            );
+            params.target = targetToken;
+            params.to = recipient;
+        }
+
+        uint256 inputForGas;
+        address gasZRC20;
+        uint256 gasFee;
+
+        (gasZRC20, gasFee) = IZRC20(params.target).withdrawGasFee();
+
+        inputForGas = SwapHelperLib.swapTokensForExactTokens(
+            systemContract,
+            zrc20,
+            gasFee,
+            gasZRC20,
+            amount
+        );
+
+        uint256 outputAmount = SwapHelperLib.swapExactTokensForTokens(
+            systemContract,
+            zrc20,
+            amount - inputForGas,
+            params.target,
+            0
+        );
+
+        IZRC20(gasZRC20).approve(params.target, gasFee);
+        IZRC20(params.target).withdraw(params.to, outputAmount);
+    }
+}

omnichain/swap/contracts/shared/MockContract.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.7;
+
+import "@zetachain/toolkit/contracts/shared/MockSystemContract.sol";
+import "@zetachain/toolkit/contracts/shared/MockZRC20.sol";
+import "@zetachain/toolkit/contracts/shared/WZETA.sol";

omnichain/swap/contracts/shared/TestUniswapCore.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.5.16;
+
+import "@zetachain/toolkit/contracts/shared/TestUniswapCore.sol";

omnichain/swap/contracts/shared/TestUniswapRouter.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.7;
+
+import "@zetachain/toolkit/contracts/shared/TestUniswapRouter.sol";

omnichain/swap/foundry.toml

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+[profile.default]
+src = 'contracts'
+out = 'out'
+viaIR = true
+libs = ['node_modules', 'lib']
+test = 'test'
+cache_path  = 'cache_forge'
+verbosity = 3
+
+[dependencies]
+forge-std = { version = "1.9.2" }

omnichain/swap/hardhat.config.ts

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+import "./tasks/deploy";
+import "./tasks/solana/interact";
+import "./tasks/interact";
+import "@zetachain/localnet/tasks";
+import "@nomicfoundation/hardhat-toolbox";
+import "@zetachain/toolkit/tasks";
+
+import { getHardhatConfigNetworks } from "@zetachain/networks";
+import { HardhatUserConfig } from "hardhat/config";
+
+const config: HardhatUserConfig = {
+  networks: {
+    ...getHardhatConfigNetworks(),
+  },
+  solidity: {
+    compilers: [
+      { version: "0.5.10" /** For create2 factory */ },
+      { version: "0.6.6" /** For uniswap v2 router*/ },
+      { version: "0.5.16" /** For uniswap v2 core*/ },
+      { version: "0.4.19" /** For weth*/ },
+      { version: "0.8.7" },
+    ],
+  },
+};
+
+export default config;

omnichain/swap/package.json

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+{
+  "name": "example-template",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "lint:fix": "npx eslint . --ext .js,.ts --fix",
+    "lint": "npx eslint . --ext .js,.ts",
+    "deploy": "npx hardhat compile --force && npx hardhat deploy --network localhost --name Hello && npx hardhat deploy --network localhost --name ReceiverContract"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@ethersproject/abi": "^5.4.7",
+    "@ethersproject/providers": "^5.4.7",
+    "@nomicfoundation/hardhat-chai-matchers": "^1.0.0",
+    "@nomicfoundation/hardhat-foundry": "^1.1.2",
+    "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
+    "@nomicfoundation/hardhat-toolbox": "^2.0.0",
+    "@nomiclabs/hardhat-ethers": "^2.0.0",
+    "@nomiclabs/hardhat-etherscan": "^3.0.0",
+    "@typechain/ethers-v5": "^10.1.0",
+    "@typechain/hardhat": "^6.1.2",
+    "@types/chai": "^4.2.0",
+    "@types/mocha": ">=9.1.0",
+    "@types/node": ">=12.0.0",
+    "@typescript-eslint/eslint-plugin": "^5.59.9",
+    "@typescript-eslint/parser": "^5.59.9",
+    "@zetachain/localnet": "^1.0.1",
+    "@zetachain/protocol-contracts": "9.0.0",
+    "@zetachain/toolkit": "^10.0.0",
+    "axios": "^1.3.6",
+    "chai": "^4.2.0",
+    "dotenv": "^16.0.3",
+    "envfile": "^6.18.0",
+    "eslint": "^8.42.0",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-import-resolver-typescript": "^3.5.5",
+    "eslint-plugin-import": "^2.27.5",
+    "eslint-plugin-prettier": "^4.2.1",
+    "eslint-plugin-simple-import-sort": "^10.0.0",
+    "eslint-plugin-sort-keys-fix": "^1.1.2",
+    "eslint-plugin-typescript-sort-keys": "^2.3.0",
+    "ethers": "^5.4.7",
+    "hardhat": "^2.17.2",
+    "hardhat-gas-reporter": "^1.0.8",
+    "prettier": "^2.8.8",
+    "solidity-coverage": "^0.8.0",
+    "ts-node": ">=8.0.0",
+    "typechain": "^8.1.0",
+    "typescript": ">=4.5.0"
+  },
+  "packageManager": "[email protected]+sha1.1959a18351b811cdeedbd484a8f86c3cc3bbaf72",
+  "dependencies": {
+    "@coral-xyz/anchor": "0.30.0",
+    "@openzeppelin/contracts": "^4.9.6",
+    "@solana-developers/helpers": "^2.4.0",
+    "@solana/spl-memo": "^0.2.5",
+    "@solana/web3.js": "^1.95.2"
+  }
+}

omnichain/swap/tasks/deploy.ts

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+import { getAddress, ParamChainName } from "@zetachain/protocol-contracts";
+import { task } from "hardhat/config";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+
+const main = async (args: any, hre: HardhatRuntimeEnvironment) => {
+  const network = hre.network.name as ParamChainName;
+
+  if (!/zeta_(testnet|mainnet|localhost)/.test(network)) {
+    throw new Error(
+      '🚨 Please use either "zeta_testnet", "zeta_mainnet" or "localhost" network to deploy to ZetaChain.'
+    );
+  }
+
+  const [signer] = await hre.ethers.getSigners();
+  if (signer === undefined) {
+    throw new Error(
+      `Wallet not found. Please, run "npx hardhat account --save" or set PRIVATE_KEY env variable (for example, in a .env file)`
+    );
+  }
+
+  const systemContract = getAddress("systemContract", network);
+
+  const factory = await hre.ethers.getContractFactory(args.name);
+  const contract = await factory.deploy(systemContract);
+  await contract.deployed();
+
+  const isTestnet = network === "zeta_testnet";
+  const zetascan = isTestnet ? "athens.explorer" : "explorer";
+  const blockscout = isTestnet ? "zetachain-athens-3" : "zetachain";
+
+  if (args.json) {
+    console.log(JSON.stringify(contract));
+  } else {
+    console.log(`🔑 Using account: ${signer.address}
+
+🚀 Successfully deployed contract on ${network}.
+📜 Contract address: ${contract.address}
+🌍 ZetaScan: https://${zetascan}.zetachain.com/address/${contract.address}
+🌍 Blockcsout: https://${blockscout}.blockscout.com/address/${contract.address}
+`);
+  }
+};
+
+task("deploy", "Deploy the contract", main)
+  .addFlag("json", "Output in JSON")
+  .addOptionalParam("name", "Contract to deploy", "Swap");