const fs = require('fs/promises');

const main = async (filePath) => {

  const input = await fs.readFile(filePath, 'utf8');

  const elves = input.split('\n\n');
  console.log("Elves: ", elves.slice(0, 5))
  const result = elves.reduce(([highestCal, fatestElf], currentFood, currentElfIndex) => {
    const currentCal = sumArray(currentFood.split('\n'));
    console.log("Current cal: ", currentCal);

    if(currentCal >= highestCal) {
      return [currentCal, currentElfIndex];
    }
    return [highestCal, fatestElf];
  }, [0, -1]);

  return result;
}

const sumArray = (values) =>
  values.reduce((a,b) => parseFloat(a) + parseFloat(b), 0);



main("./input.txt").then(result => {
  console.log("Done!");

  console.log("Result: ", result);
});