use aoc_runner_derive::{aoc as aoc_run, aoc_generator};
use std::collections::HashSet;

type Beep = HashSet<char>;

#[aoc_generator(day6)]
fn parse_input_day1(input: &str) -> String {
    input.to_string()
}
#[aoc_run(day6, part1)]
fn part1(input: &str) -> usize {
    let input = input.trim();
    let mut out = 4;
    for (i, c) in input.as_bytes().windows(4).enumerate() {
        let window = Beep::from_iter(c.iter().map(|c| *c as char));
        out = i + 4;
        dbg!(i, std::str::from_utf8(c).unwrap(), &window);
        if window.len() == 4 {
            break;
        }
    }
    out
}