init

dmtp/client/lib/celo.ts

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+import { ethers } from 'ethers';
+
+// Network configurations
+export const CELO_NETWORKS = {
+  mainnet: {
+    chainId: 42220,
+    name: 'Celo Mainnet',
+    rpcUrl: 'https://forno.celo.org',
+    blockExplorer: 'https://celoscan.io',
+    cUSDAddress: '0x765DE816845861e75A25fCA122bb6898B8B1282a',
+  },
+  sepolia: {
+    chainId: 11142220,
+    name: 'Celo Sepolia Testnet',
+    rpcUrl: 'https://forno.celo-sepolia.celo-testnet.org',
+    blockExplorer: 'https://sepolia.celoscan.io',
+    cUSDAddress: '0x874069fa1eb16d44d622f2e0ca25eea172369bc1',
+  },
+};
+
+// Get current network config
+export function getCurrentNetwork() {
+  const chainId = parseInt(process.env.NEXT_PUBLIC_CHAIN_ID || '11142220');
+  
+  switch (chainId) {
+    case 42220:
+      return CELO_NETWORKS.mainnet;
+    case 11142220:
+      return CELO_NETWORKS.sepolia;
+    default:
+      return CELO_NETWORKS.sepolia;
+  }
+}
+
+// Get cUSD token address
+export function getCUSDAddress(): string {
+  return getCurrentNetwork().cUSDAddress;
+}
+
+// Get block explorer URL
+export function getExplorerUrl(txHash: string): string {
+  return `${getCurrentNetwork().blockExplorer}/tx/${txHash}`;
+}
+
+// Format address
+export function formatAddress(address: string): string {
+  if (!address) return '';
+  return `${address.slice(0, 6)}...${address.slice(-4)}`;
+}
+
+// Check if address is valid
+export function isValidAddress(address: string): boolean {
+  try {
+    return ethers.isAddress(address);
+  } catch {
+    return false;
+  }
+}
+
+// Parse error message
+export function parseErrorMessage(error: any): string {
+  if (error.reason) return error.reason;
+  if (error.message) return error.message;
+  if (typeof error === 'string') return error;
+  return 'Transaction failed';
+}