Project Overview

• Create BottoRewardDistributor contract for a fresh deployment on Base network
  • Optionally use existing Mainnet contract as boilerplate
• Existing Mainnet contract allows for ETH reward distribution to specific claimants
• New contract mimics core functionality, to be deployed on Base.
• Implement best practices and optimize for Base Network deployment.

Key Requirements

1. Maintain core functionality:
   • Allow depositing ETH rewards for multiple addresses
   • Enable claiming of ETH rewards
   • Permit recovery of mistakenly sent ERC20 tokens by the owner
2. Update to latest Solidity version:
   • Current: pragma solidity >=0.6.0 <0.8.0
   • Target: Latest stable Solidity version (e.g., 0.8.19)
3. Ensure compatibility with Base network:
   • Verify gas optimization for Base
   • Update OpenZeppelin imports to latest compatible versions
   • Include BaseScan verification into deployment scripts
4. Implement best practices and fix existing issues:
   • Correct typos and syntax errors
   • Enhance security measures
   • Improve code quality and readability

Specific Tasks

1. Update Solidity version to latest stable release
2. Review and update OpenZeppelin imports for latest compatible versions
3. Fix typos and syntax errors if using mainnet contract as boilerplate:
   • In claim function: Change uint256 *amount to uint256 _amount
   • In recover function: Remove asterisks and correct variable names
4. Implement additional security measures:
   • Add checks for zero addresses in deposit and claim functions
   • Implement input validation for array lengths in deposit function
5. Optimize gas usage:
   • Consider using uint256 instead of address as mapping key for rewards
   • Evaluate the use of safeMath (may not be necessary for Solidity >=0.8.0)
6. Enhance code quality:
   • Add comprehensive NatSpec comments
   • Implement more granular error messages
7. Consider adding new features:
   • Implement a way to view total rewards distributed
   • Add a function to remove an address from the rewards mapping
8. Ensure all functions (deposit, claim, recover) work correctly
9. Verify that events (Claim, Deposit, RecoveryTransfer) are emitted correctly