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Network Configuration Changes

Summary

Successfully removed hardcoded Sepolia references throughout the ETH Shot codebase and made network configuration fully dynamic based on environment variables. The application now supports any Ethereum-compatible network by simply changing environment variables.

Files Modified

1. src/lib/components/WalletConnect.svelte

Changes:

  • Added NETWORK_CONFIG import
  • Replaced hardcoded "Sepolia Testnet" with NETWORK_CONFIG.NETWORK_NAME
  • Made testnet/mainnet notice dynamic based on NETWORK_CONFIG.CHAIN_ID
  • Updated warning messages to use dynamic network name

Impact: Wallet connection UI now displays correct network name and appropriate notices for mainnet vs testnet.

2. src/lib/utils/network-detection.js

Changes:

  • Renamed SEPOLIA_CONFIG to NETWORK_WALLET_CONFIG for generic network support
  • Made native currency name dynamic (shows "Ether" for mainnet, network-specific for testnets)
  • Renamed switchToSepolia() to switchToNetwork() with backward compatibility alias
  • Updated getTestnetInfo() to return different instructions for mainnet vs testnet
  • Added support for multiple networks in testnet info

Impact: Network switching and detection now works for any configured network, not just Sepolia.

3. src/lib/components/AdminPanel.svelte

Changes:

  • Renamed getEtherscanUrl() to getBlockExplorerUrl()
  • Uses NETWORK_CONFIG.BLOCK_EXPLORER_URL instead of hardcoded Sepolia explorer
  • Dynamic block explorer link text (shows "Etherscan" for mainnet, "Block Explorer" for others)

Impact: Admin panel transaction links now point to the correct block explorer for the configured network.

4. scripts/verify-contract.js

Changes:

  • Added getNetworkConfig() function to read network settings from environment
  • Dynamic network name and block explorer URL in console output
  • Uses configured Hardhat network name instead of hardcoded "sepolia"
  • Network-specific API key guidance in error messages
  • Dynamic block explorer URLs in success/error messages

Impact: Contract verification script now works with any supported network based on environment variables.

Environment Variables for Network Configuration

Current (Sepolia Testnet)

VITE_CHAIN_ID=11155111
VITE_NETWORK_NAME="Sepolia Testnet"
VITE_RPC_URL="https://sepolia.infura.io/v3/YOUR_KEY"
VITE_BLOCK_EXPLORER_URL="https://sepolia.etherscan.io"

For Mainnet Deployment

VITE_CHAIN_ID=1
VITE_NETWORK_NAME="Ethereum Mainnet"
VITE_RPC_URL="https://mainnet.infura.io/v3/YOUR_KEY"
VITE_BLOCK_EXPLORER_URL="https://etherscan.io"

For Other Networks (Example: Base)

VITE_CHAIN_ID=8453
VITE_NETWORK_NAME="Base Mainnet"
VITE_RPC_URL="https://mainnet.base.org"
VITE_BLOCK_EXPLORER_URL="https://basescan.org"

Testing Results

✅ Network Detection Utility: Chain ID conversion and network name mapping work correctly ✅ Verification Script: Properly detects network configuration from environment variables ✅ Mainnet Configuration: Successfully loads mainnet settings (Chain ID: 1, Etherscan URLs) ✅ Sepolia Configuration: Maintains backward compatibility with existing testnet setup

Deployment Instructions

For Mainnet Deployment:

  1. Update Environment Variables:

    VITE_CHAIN_ID=1
VITE_NETWORK_NAME="Ethereum Mainnet"
VITE_RPC_URL="https://mainnet.infura.io/v3/YOUR_INFURA_KEY"
VITE_BLOCK_EXPLORER_URL="https://etherscan.io"
VITE_CONTRACT_ADDRESS="YOUR_MAINNET_CONTRACT_ADDRESS"

  2. Update Hardhat Configuration:

    • Ensure hardhat.config.js has proper mainnet configuration
    • Set ETHERSCAN_API_KEY for contract verification

  3. Deploy Contract:

    pnpm run deploy:mainnet

  4. Verify Contract:

    node scripts/verify-contract.js

  5. Test Application:

    • UI will automatically show "Ethereum Mainnet" instead of "Sepolia Testnet"
    • Wallet connection prompts will reference mainnet
    • Block explorer links will point to etherscan.io
    • Admin panel will use mainnet explorer URLs

Backward Compatibility

  • All existing Sepolia configurations continue to work unchanged
  • switchToSepolia() function maintained as alias to switchToNetwork()
  • Default values still point to Sepolia for development environments
  • No breaking changes to existing API or component interfaces

Benefits

  1. Network Agnostic: Single codebase supports any Ethereum-compatible network
  2. Easy Deployment: Switch networks by changing environment variables only
  3. Maintainable: No more hardcoded network-specific strings scattered throughout code
  4. User Experience: Dynamic UI messages appropriate for each network
  5. Developer Experience: Clear configuration and easy testing across networks

Next Steps

The application is now ready for mainnet deployment. Simply update the environment variables and deploy the contract to switch from Sepolia testnet to Ethereum mainnet or any other supported network.