use std::env;
use std::io;

const LATEST: u8 = 2;

mod day01;
mod day02;
// mod day03;
// mod day04;
// mod day05;
// mod day06;
// mod day07;
// mod day08;
// mod day09;
// mod day10;
// mod day11;
// mod day12;
// mod day13;
// mod day14;
// mod day15;
// mod day16;
// mod day17;
// mod day18;
// mod day19;
// mod day20;
// mod day21;
// mod day22;
// mod day23;
// mod day24;
// mod day25;

fn main() -> io::Result<()> {
    let day = determine_day(LATEST);
    match day {
        1 => day01::execute(),
        2 => day02::execute(),
        // 3 => day03::execute(),
        // 4 => day04::execute(),
        // 5 => day05::execute(),
        // 6 => day06::execute(),
        // 7 => day07::execute(),
        // 8 => day08::execute(),
        // 9 => day09::execute(),
        // 10 => day10::execute(),
        // 11 => day11::execute(),
        // 12 => day12::execute(),
        // 13 => day13::execute(),
        // 14 => day14::execute(),
        // 15 => day15::execute(),
        // 16 => day16::execute(),
        // 17 => day17::execute(),
        // 18 => day18::execute(),
        // 19 => day19::execute(),
        // 20 => day20::execute(),
        // 21 => day21::execute(),
        // 22 => day22::execute(),
        // 23 => day23::execute(),
        // 24 => day24::execute(),
        // 25 => day25::execute(),
        _ => panic!("Couldn't execute day {day}")
    }
}

fn determine_day(latest: u8) -> u8 {
    let mut day = latest;
    for arg in env::args() {
        if let Ok(x) = arg.parse::<u8>() {
            day = x;
            break;
        }
    }
    return day;
}