Submission/timelock/savagechucks

assignments/savage_assignment/Solidity_Assignment/escrow/.gitignore

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+# Node modules
+/node_modules
+
+# Compilation output
+/dist
+
+# pnpm deploy output
+/bundle
+
+# Hardhat Build Artifacts
+/artifacts
+
+# Hardhat compilation (v2) support directory
+/cache
+
+# Typechain output
+/types
+
+# Hardhat coverage reports
+/coverage

assignments/savage_assignment/Solidity_Assignment/escrow/README.md

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+# Sample Hardhat 3 Beta Project (`mocha` and `ethers`)
+
+This project showcases a Hardhat 3 Beta project using `mocha` for tests and the `ethers` library for Ethereum interactions.
+
+To learn more about the Hardhat 3 Beta, please visit the [Getting Started guide](https://hardhat.org/docs/getting-started#getting-started-with-hardhat-3). To share your feedback, join our [Hardhat 3 Beta](https://hardhat.org/hardhat3-beta-telegram-group) Telegram group or [open an issue](https://github.com/NomicFoundation/hardhat/issues/new) in our GitHub issue tracker.
+
+## Project Overview
+
+This example project includes:
+
+- A simple Hardhat configuration file.
+- Foundry-compatible Solidity unit tests.
+- TypeScript integration tests using `mocha` and ethers.js
+- Examples demonstrating how to connect to different types of networks, including locally simulating OP mainnet.
+
+## Usage
+
+### Running Tests
+
+To run all the tests in the project, execute the following command:
+
+```shell
+npx hardhat test
+```
+
+You can also selectively run the Solidity or `mocha` tests:
+
+```shell
+npx hardhat test solidity
+npx hardhat test mocha
+```
+
+### Make a deployment to Sepolia
+
+This project includes an example Ignition module to deploy the contract. You can deploy this module to a locally simulated chain or to Sepolia.
+
+To run the deployment to a local chain:
+
+```shell
+npx hardhat ignition deploy ignition/modules/Counter.ts
+```
+
+To run the deployment to Sepolia, you need an account with funds to send the transaction. The provided Hardhat configuration includes a Configuration Variable called `SEPOLIA_PRIVATE_KEY`, which you can use to set the private key of the account you want to use.
+
+You can set the `SEPOLIA_PRIVATE_KEY` variable using the `hardhat-keystore` plugin or by setting it as an environment variable.
+
+To set the `SEPOLIA_PRIVATE_KEY` config variable using `hardhat-keystore`:
+
+```shell
+npx hardhat keystore set SEPOLIA_PRIVATE_KEY
+```
+
+After setting the variable, you can run the deployment with the Sepolia network:
+
+```shell
+npx hardhat ignition deploy --network sepolia ignition/modules/Counter.ts
+```

assignments/savage_assignment/Solidity_Assignment/escrow/contracts/Counter.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+contract Counter {
+  uint public x;
+
+  event Increment(uint by);
+
+  function inc() public {
+    x++;
+    emit Increment(1);
+  }
+
+  function incBy(uint by) public {
+    require(by > 0, "incBy: increment should be positive");
+    x += by;
+    emit Increment(by);
+  }
+}

assignments/savage_assignment/Solidity_Assignment/escrow/contracts/Counter.t.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+import {Counter} from "./Counter.sol";
+import {Test} from "forge-std/Test.sol";
+
+// Solidity tests are compatible with foundry, so they
+// use the same syntax and offer the same functionality.
+
+contract CounterTest is Test {
+  Counter counter;
+
+  function setUp() public {
+    counter = new Counter();
+  }
+
+  function test_InitialValue() public view {
+    require(counter.x() == 0, "Initial value should be 0");
+  }
+
+  function testFuzz_Inc(uint8 x) public {
+    for (uint8 i = 0; i < x; i++) {
+      counter.inc();
+    }
+    require(counter.x() == x, "Value after calling inc x times should be x");
+  }
+
+  function test_IncByZero() public {
+    vm.expectRevert();
+    counter.incBy(0);
+  }
+}

assignments/savage_assignment/Solidity_Assignment/escrow/contracts/escrow.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.28;
+
+contract EscrowSystem {
+
+   // Define State 
+   enum SystemStatus {
+      AWAITING_DEPOSIT,
+      ALREADY_DEPOSITED,
+      ALREADY_DELIVERED,
+      COMPLETED
+   }
+
+   struct Transactions {
+      address buyer;
+      address seller;
+      uint amount;
+      SystemStatus status;
+      bool exists;
+   }
+
+   // Create Storage Sysytem: Building a system where each transaction  has a unique number, and the number let's you check your transaction in storage.  
+   mapping (uint => Transactions) public txStorage;
+
+
+   // Creating a counter: Tracking how many transactions gave been created so each gets a unique ID
+   uint public txCounter;
+
+
+   // This function creates a new transaction when ever it is called. 
+   function newTransactions(address _buyer, address _seller, uint _amount) public  returns (uint) {
+      txCounter++; // This creates new IDs for transactions
+      txStorage[txCounter] = Transactions({ // Store new transactions at that ID
+         buyer: _buyer,
+         seller: _seller,
+         amount: _amount,
+         status: SystemStatus.AWAITING_DEPOSIT,
+         exists: true
+
+      });
+
+
+      return txCounter;  // Return the ID that was used
+   }
+
+
+   // this function is recieves the payment from the buyer. 
+   function deposit(uint _id) public payable {
+      // this line is going into mapping/storage, to get a transaction and store it within storedTx.
+      // This helps us to get every data within the transaction struct by using the variable storedTx. 
+      Transactions storage storedTx = txStorage[_id];
+      require(_id > 0 && _id <= txCounter, "Invalid ID");
+      require(storedTx.exists, " Transaction doesn't exist");
+      require(msg.sender == storedTx.buyer, "Only buyer can make deposit");
+      require(msg.value == storedTx.amount, "Wrong amount sent");
+      require(storedTx.status == SystemStatus.AWAITING_DEPOSIT, "Already Deposited");
+
+      // changing status to already deposited. for the buyer has already sent the money. 
+      storedTx.status = SystemStatus.ALREADY_DEPOSITED;
+   }
+
+
+   // this function is to confrim that the delievery has been made 
+   function confirmDelivery(uint _id) public {
+      Transactions storage storedTx = txStorage[_id];
+      require(_id > 0 && _id <= txCounter, "Invalid ID");
+      require(storedTx.exists, "Transaction doesn't exist");
+      require(msg.sender == storedTx.buyer, "Only buyer can confirrm delivery");
+      require(storedTx.status == SystemStatus.ALREADY_DEPOSITED, "Awaiting deposit");
+
+      storedTx.status = SystemStatus.ALREADY_DELIVERED;
+   }
+
+
+   // 
+
+   function releaseFunds(uint _id) public{
+      Transactions storage storedTx = txStorage[_id];
+      require(_id > 0 && _id <= txCounter, "Invalid ID");
+      require(storedTx.exists, "Transaction doesn't exist");
+      require(storedTx.status == SystemStatus.ALREADY_DELIVERED, "Awaiting delievery");
+      require(msg.sender == storedTx.seller, "Only seller can receive payment");
+
+      // Change state before sending money
+      storedTx.status = SystemStatus.COMPLETED;
+
+      // Seller recieves payment
+      (bool success,) = storedTx.seller.call{value: storedTx.amount}("");
+      require(success, "Transafer failed");
+
+   }
+}

assignments/savage_assignment/Solidity_Assignment/escrow/hardhat.config.ts

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+import "dotenv/config";
+import hardhatToolboxMochaEthersPlugin from "@nomicfoundation/hardhat-toolbox-mocha-ethers";
+import { configVariable, defineConfig } from "hardhat/config";
+
+export default defineConfig({
+  plugins: [hardhatToolboxMochaEthersPlugin],
+  solidity: {
+    profiles: {
+      default: {
+        version: "0.8.28",
+      },
+      production: {
+        version: "0.8.28",
+        settings: {
+          optimizer: {
+            enabled: true,
+            runs: 200,
+          },
+        },
+      },
+    },
+  },
+  networks: {
+    hardhatMainnet: {
+      type: "edr-simulated",
+      chainType: "l1",
+    },
+    hardhatOp: {
+      type: "edr-simulated",
+      chainType: "op",
+    },
+    sepolia: {
+      type: "http",
+      chainType: "l1",
+      url: configVariable("SEPOLIA_RPC_URL"),
+      accounts: [configVariable("SEPOLIA_PRIVATE_KEY")],
+    },
+  },
+  verify: {
+    etherscan: {
+      apiKey: configVariable("ETHERSCAN_API_KEY"),
+    },
+  },
+});