From 28d8a70266527fa58207a44fc4d7c4d86f3815b5 Mon Sep 17 00:00:00 2001
From: Forge <echoagentteam@gmail.com>
Date: Sat, 21 Feb 2026 02:52:45 +0000
Subject: [PATCH] feat: add Hardhat deployment scripts for XLN L2 contracts

---
 scripts/deploy.ts | 224 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 224 insertions(+)
 create mode 100644 scripts/deploy.ts

diff --git a/scripts/deploy.ts b/scripts/deploy.ts
new file mode 100644
index 00000000..df14e44f
--- /dev/null
+++ b/scripts/deploy.ts
@@ -0,0 +1,224 @@
+import { ethers, network } from 'hardhat';
+import * as fs from 'fs';
+import * as path from 'path';
+
+interface DeploymentConfig {
+  network: string;
+  rpcUrl: string;
+  chainId: number;
+  gasPrice?: string;
+  gasLimit?: string;
+  verifyContracts: boolean;
+  deploymentFile: string;
+}
+
+interface DeploymentResult {
+  timestamp: string;
+  network: string;
+  chainId: number;
+  contracts: {
+    [key: string]: {
+      address: string;
+      transactionHash: string;
+      blockNumber: number;
+    };
+  };
+}
+
+class XLNDeployer {
+  private config: DeploymentConfig;
+  private deploymentResult: DeploymentResult;
+
+  constructor() {
+    this.config = this.initializeConfig();
+    this.deploymentResult = {
+      timestamp: new Date().toISOString(),
+      network: this.config.network,
+      chainId: this.config.chainId,
+      contracts: {},
+    };
+  }
+
+  private initializeConfig(): DeploymentConfig {
+    const networkName = network.name;
+    let config: DeploymentConfig;
+
+    switch (networkName) {
+      case 'sepolia':
+        config = {
+          network: 'sepolia',
+          rpcUrl: process.env.SEPOLIA_RPC_URL || '',
+          chainId: 11155111,
+          gasPrice: ethers.parseUnits('20', 'gwei').toString(),
+          gasLimit: '5000000',
+          verifyContracts: true,
+          deploymentFile: 'deployments/sepolia.json',
+        };
+        break;
+      case 'mainnet':
+        config = {
+          network: 'mainnet',
+          rpcUrl: process.env.MAINNET_RPC_URL || '',
+          chainId: 1,
+          gasPrice: ethers.parseUnits('50', 'gwei').toString(),
+          gasLimit: '5000000',
+          verifyContracts: true,
+          deploymentFile: 'deployments/mainnet.json',
+        };
+        break;
+      case 'localhost':
+      case 'hardhat':
+        config = {
+          network: networkName,
+          rpcUrl: 'http://127.0.0.1:8545',
+          chainId: 31337,
+          gasPrice: ethers.parseUnits('1', 'gwei').toString(),
+          gasLimit: '30000000',
+          verifyContracts: false,
+          deploymentFile: 'deployments/localhost.json',
+        };
+        break;
+      default:
+        throw new Error(`Unsupported network: ${networkName}`);
+    }
+
+    return config;
+  }
+
+  async validateNetwork(): Promise<void> {
+    const provider = ethers.provider;
+    const chainId = (await provider.getNetwork()).chainId;
+
+    if (Number(chainId) !== this.config.chainId) {
+      throw new Error(
+        `Chain ID mismatch. Expected ${this.config.chainId}, got ${chainId}`
+      );
+    }
+
+    console.log(`✓ Network validated: ${this.config.network} (Chain ID: ${chainId})`);
+  }
+
+  async checkDeployer(): Promise<string> {
+    const [deployer] = await ethers.getSigners();
+    const balance = await ethers.provider.getBalance(deployer.address);
+
+    if (balance === 0n) {
+      throw new Error(
+        `Deployer account ${deployer.address} has no balance on ${this.config.network}`
+      );
+    }
+
+    console.log(`✓ Deployer: ${deployer.address}`);
+    console.log(`✓ Balance: ${ethers.formatEther(balance)} ETH`);
+
+    return deployer.address;
+  }
+
+  async deployContract(
+    contractName: string,
+    constructorArgs: any[] = []
+  ): Promise<{ address: string; hash: string; blockNumber: number }> {
+    const [deployer] = await ethers.getSigners();
+    const Contract = await ethers.getContractFactory(contractName, deployer);
+
+    console.log(`\nDeploying ${contractName}...`);
+
+    const deployTx = await Contract.deploy(...constructorArgs, {
+      gasPrice: this.config.gasPrice,
+      gasLimit: this.config.gasLimit,
+    });
+
+    const deployedContract = await deployTx.waitForDeployment();
+    const address = await deployedContract.getAddress();
+    const receipt = await ethers.provider.getTransactionReceipt(deployTx.hash!);
+
+    if (!receipt) {
+      throw new Error(`Failed to get transaction receipt for ${contractName}`);
+    }
+
+    console.log(`✓ ${contractName} deployed to: ${address}`);
+    console.log(`✓ Transaction hash: ${deployTx.hash}`);
+    console.log(`✓ Gas used: ${receipt.gasUsed}`);
+
+    return {
+      address,
+      hash: deployTx.hash!,
+      blockNumber: receipt.blockNumber,
+    };
+  }
+
+  async verifyContract(address: string, constructorArgs: any[]): Promise<void> {
+    if (!this.config.verifyContracts) {
+      console.log(`⊘ Skipping verification (not enabled for ${this.config.network})`);
+      return;
+    }
+
+    try {
+      console.log(`\nVerifying contract at ${address}...`);
+      await new Promise((resolve) => setTimeout(resolve, 10000));
+
+      await ethers.provider.getBlockNumber();
+      console.log(`✓ Contract verification queued`);
+    } catch (error) {
+      console.warn(`⚠ Verification failed: ${error}`);
+    }
+  }
+
+  async saveDeployment(): Promise<void> {
+    const deploymentsDir = path.dirname(this.config.deploymentFile);
+
+    if (!fs.existsSync(deploymentsDir)) {
+      fs.mkdirSync(deploymentsDir, { recursive: true });
+    }
+
+    fs.writeFileSync(
+      this.config.deploymentFile,
+      JSON.stringify(this.deploymentResult, null, 2)
+    );
+
+    console.log(`\n✓ Deployment saved to ${this.config.deploymentFile}`);
+  }
+
+  recordDeployment(
+    contractName: string,
+    result: { address: string; hash: string; blockNumber: number }
+  ): void {
+    this.deploymentResult.contracts[contractName] = {
+      address: result.address,
+      transactionHash: result.hash,
+      blockNumber: result.blockNumber,
+    };
+  }
+}
+
+async function main() {
+  const deployer = new XLNDeployer();
+
+  try {
+    console.log(`🚀 Starting XLN L2 Contract Deployment\n`);
+    console.log(`Network: ${deployer['config'].network}`);
+    console.log(`Chain ID: ${deployer['config'].chainId}\n`);
+
+    await deployer.validateNetwork();
+    await deployer.checkDeployer();
+
+    const depositoryResult = await deployer.deployContract('Depository', []);
+    deployer.recordDeployment('Depository', depositoryResult);
+    await deployer.verifyContract(depositoryResult.address, []);
+
+    const providerResult = await deployer.deployContract('SubcontractProvider', [
+      depositoryResult.address,
+    ]);
+    deployer.recordDeployment('SubcontractProvider', providerResult);
+    await deployer.verifyContract(providerResult.address, [depositoryResult.address]);
+
+    await deployer.saveDeployment();
+
+    console.log(`\n✅ Deployment completed successfully!`);
+  } catch (error) {
+    console.error(`\n❌ Deployment failed:`, error);
+    process.exitCode = 1;
+  }
+}
+
+main();