const input = await Bun.file('./inputs/day3').text();
const regex = /(?<instruction>do|don't)\(\)|mul\((?<first>\d+)\,(?<second>\d+)\)/g;

let enabled = true;
let total = 0;
input.matchAll(regex).forEach(({ groups }) => {
  if (groups!.instruction === 'do') enabled = true;
  else if (groups!.instruction === "don't") enabled = false;
  else if (enabled) total += Number(groups!.first) * Number(groups!.second);
});

console.log(`sum of mult with do/don't: ${total}`);