compile.js

const fs = require('fs');
const solc = require('solc');

console.log('Compiling DripFeed.sol...');
const source = fs.readFileSync('DripFeed.sol', 'utf8');

const input = {
  language: 'Solidity',
  sources: { 'DripFeed.sol': { content: source } },
  settings: { outputSelection: { '*': { '*': ['abi', 'evm.bytecode'] } } }
};

const output = JSON.parse(solc.compile(JSON.stringify(input)));

if (output.errors) {
  const errors = output.errors.filter(e => e.severity === 'error');
  if (errors.length > 0) {
    errors.forEach(e => console.error(e.message));
    process.exit(1);
  }
}

const contract = output.contracts['DripFeed.sol']['DripFeed'];
fs.writeFileSync('DripFeed_abi.json', JSON.stringify(contract.abi, null, 2));
fs.writeFileSync('DripFeed_bytecode.json', JSON.stringify({ bytecode: '0x' + contract.evm.bytecode.object }, null, 2));

console.log('Compiled successfully!');