#!/usr/bin/env nu

let current = ls | where name =~ \d\d and type == dir | get name | sort | last | default "00"
let part2 = $current | path join part2

if (($current == "00") or ($part2 | path exists)) {
	let next = $current | into int | $in + 1 | into string | fill -a r -c '0' -w 2
	let part1 = $next | path join part1

	mkdir ($part1 | path join src)
	{ package: { name: $"aoc25-($next)-1" version: "1.0.0" edition: "2024" } }
	| save ($part1 | path join Cargo.toml)

	r#'use std::fs::read_to_string;

fn main() {
    read_to_string("../input.txt").expect("failed to open input file");
}'# | save ($part1 | path join src main.rs)
} else {
	let part1 = $current | path join part1

	mkdir $part2
	open ($part1 | path join Cargo.toml)
	| update package.name $"aoc25-($current)-2"
	| save ($part2 | path join Cargo.toml)

	cp -r ($part1 | path join src) ($part2 | path join src)
}