import * as R from "remeda";

import { readFile } from "../05/part1.js";

const readInput = (...args) =>
  R.pipe(
    readFile(...args),
    (lines) => lines.split("\n\n"),
    R.compact, // remove last line
    R.map(
        block => block.split("\n").map( line => eval(line) )
    )
  );

export const puzzleInput = readInput(import.meta.url, "input");
export const sample = readInput(import.meta.url, "sample");

export function isLessThan(x,y) {
    if( [x,y].every(R.isNumber)  ) return x < y ? -1 : x == y ? 0 : 1;

    if( [x,y].every(R.isArray)  ) {
        for ( const [a,b]  of R.zip(x,y)) {
            const res = isLessThan(a,b);
            if(res !== 0) return res;
        }
        if( x.length === y.length ) return 0
        return x.length < y.length ? -1 : 1;
    }

   return isLessThan(...[x,y].map( z => R.isNumber(z)? [z] : z ));
}

const passthru = (x) => (arg) => {
    x(arg);
    return arg;
}

export default R.createPipe(
    R.map( ([x,y]) => isLessThan(x,y) ),
    (results) => results.map(
        (value,index) => ({ value, index: index+1 })
    ),
    R.filter( ({ value }) => value !== 1 ),
    R.map( R.prop('index') ),
    (results) => results.reduce((a,b) => a+b)
);