feat: contracts and deploy script

.gitignore

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+node_modules
+.env
+coverage
+coverage.json
+typechain
+typechain-types
+
+#Hardhat files
+cache
+artifacts
+
+
+node_modules
+.env
+coverage
+coverage.json
+typechain
+typechain-types
+
+#Hardhat files
+cache
+artifacts
+

README.md

@@ -1,2 +1,13 @@
-# take-home
+# Sample Hardhat Project
-Magna engineering take-home assessment
+
+This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, and a script that deploys that contract.
+
+Try running some of the following tasks:
+
+```shell
+npx hardhat help
+npx hardhat test
+REPORT_GAS=true npx hardhat test
+npx hardhat node
+npx hardhat run scripts/deploy.ts
+```

contracts/Airdrop.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity =0.8.17;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract Airdrop is Ownable {
+    address public token;
+
+    constructor(address _token) {
+        token = _token;
+    }
+
+    function airdropTokens(
+        address[] memory _recipients,
+        uint256[] memory amount
+    ) external onlyOwner {
+        require(
+            _recipients.length == amount.length,
+            "Airdrop: Recipients and amount length mismatch"
+        );
+        for (uint256 i = 0; i < _recipients.length; i++) {
+            IERC20(token).transfer(_recipients[i], amount[i]);
+        }
+    }
+}

contracts/MagnaToken.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity =0.8.17;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract MagnaToken is ERC20 {
+    uint256 constant _initial_supply = (10**9) * (10**18);
+
+    constructor() ERC20("MagnaToken", "MAGNA") {
+        _mint(msg.sender, _initial_supply);
+    }
+}

hardhat.config.ts

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+import { HardhatUserConfig } from "hardhat/config";
+import "@nomicfoundation/hardhat-toolbox";
+
+const config: HardhatUserConfig = {
+  solidity: "0.8.17",
+};
+
+export default config;

package.json

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+{
+  "name": "take-home",
+  "version": "1.0.0",
+  "main": "index.js",
+  "repository": "https://github.com/magna-eng/take-home.git",
+  "author": "pop-punk <harrison@magna.so>",
+  "license": "MIT",
+  "devDependencies": {
+    "@ethersproject/abi": "^5.4.7",
+    "@ethersproject/providers": "^5.4.7",
+    "@nomicfoundation/hardhat-chai-matchers": "^1.0.0",
+    "@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",
+    "chai": "^4.2.0",
+    "ethers": "^5.4.7",
+    "hardhat": "^2.12.2",
+    "hardhat-gas-reporter": "^1.0.8",
+    "solidity-coverage": "^0.8.0",
+    "ts-node": ">=8.0.0",
+    "typechain": "^8.1.0",
+    "typescript": ">=4.5.0"
+  },
+  "dependencies": {
+    "@openzeppelin/contracts": "^4.8.0"
+  }
+}

scripts/deploy.ts

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+import { ethers } from "hardhat";
+
+async function main() {
+  const [deployer] = await ethers.getSigners();
+  console.log("Deploying contracts with the account:", deployer.address);
+
+  const Token = await ethers.getContractFactory("MagnaToken");
+  const token = await Token.deploy();
+  console.log("Token address:", token.address);
+
+  const Airdrop = await ethers.getContractFactory("Airdrop");
+  const airdrop = await Airdrop.deploy(token.address);
+  console.log("Airdrop address:", airdrop.address);
+}
+
+// We recommend this pattern to be able to use async/await everywhere
+// and properly handle errors.
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2020",
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true
+  }
+}