const { Glib } = require('../../lib');

module.exports = {
  '1': (input) =>
    Glib.fromLines(input)
      .toInts()
      .sum(),
  2: (input) =>
    Glib.fromLines(input)
      .toInts()
      .infinite()
      .partialReduce(
        ({ seen, position }, move, index) => {
          position = position + move;
          if (seen.has(position)) {
            return position;
          }
          seen.add(position);
          return { seen, position };
        },
        (state) => typeof state !== 'bigint',
        { seen: new Set([0n]), position: 0n },
      ),
};