Feat/integration

[JamesVictor-O]

Description

This error occurred because the @decleanup/contracts package was published with an incomplete structure - it only included arbitrum-sepolia contracts but the main index.js file was trying to require a non-existent ./arbitrum module.

issue #62

🔍 Root Cause Analysis

1. Broken Package Structure: The @decleanup/contracts package was missing the arbitrum directory
2. TypeScript Compatibility: The package used ethers v5 TypeScript files that were incompatible with Next.js 15 and viem
3. Missing TypeChain Integration: The original TypeChain-generated types couldn't be imported due to compilation errors

✅ Solution Implemented

1. Created Custom Contract Wrapper (src/lib/decleanup-contracts.ts)

• Purpose: Provides a clean interface to DeCleanup contracts without importing problematic TypeScript files
• Features:
  • Direct contract address configuration for Arbitrum Sepolia
  • Dynamic ABI imports to avoid compilation issues
  • Type-safe network validation
  • Viem-compatible contract structure

2. Updated Contract Integration Layer (src/lib/contracts.ts)

• Changes:
  • Replaced direct package imports with custom wrapper
  • Implemented async ABI loading for better performance
  • Added proper viem getContract() integration
  • Maintained type safety through proper TypeScript interfaces

3. Updated React Hook (src/hooks/useDeCleanupContracts.ts)

• Changes:
  • Migrated from synchronous to asynchronous contract initialization
  • Integrated with new wrapper architecture
  • Maintained React hooks best practices with proper dependency arrays

4. Updated UI Components (src/components/ContractInfo.tsx)

• Changes:
  • Updated imports to use new wrapper
  • Maintained existing UI functionality
  • Ensured proper TypeScript typing

5. Fixed Provider Configuration (src/app/provider.tsx)

• Changes:
  • Removed non-existent DeCleanupChainId import
  • Cleaned up unused dependencies

🏗️ Technical Architecture

Before (Broken):

// Direct import from broken package
import { DCUToken, RewardLogic } from '@decleanup/contracts';
// ❌ Failed due to missing ./arbitrum module

After (Fixed):

// Custom wrapper with proper error handling
import { DCUContracts } from './decleanup-contracts';
import { getContract } from 'viem';

const contracts = new DCUContracts('ARBITRUM_SEPOLIA');
const token = getContract({
  address: contracts.DCUToken.address,
  abi: await getContractAbi.DCUToken(),
  client: publicClient,
});
// ✅ Works with full type safety

🧪 Testing

• ✅ Build Process: npm run build now completes successfully
• ✅ TypeScript Compilation: No more module resolution errors
• ✅ Contract Integration: All DeCleanup contracts accessible via viem
• ✅ Runtime Compatibility: Works with Next.js 15 and modern React patterns