import * as R from 'remeda';

export const slice_and_dice = R.createPipe(
    (l) => l.replace(/Card \d+:/,'').split('|').map(
        segment => segment.split(' ').filter(R.identity)
    ),
    ([winning,mine]) => {
        let seen = {};
        winning.forEach( n => seen[n] = true );
        let got = mine.filter( n => seen[n] ).length;
        return got;
    },
    (n) => n == 0 ? 0 : Math.pow(2,n-1)
);

export function solution_1(input) {
   return R.pipe(
        input,
        i => i.split("\n"),
        R.compact,
        R.map(
            slice_and_dice
        ),
        R.sumBy(R.identity)
    ) 
}