use std::time::{Duration, Instant};

pub fn run(print: bool) -> Duration {
    let file_string = std::fs::read_to_string("inputs/day02").unwrap();
    let instant = Instant::now();

    let rules: Vec<(usize, usize, char, &str)> = file_string
        .lines()
        .flat_map(|rule| {
            let mut splitc = rule.splitn(2, ' ');
            let mut split_range = splitc.next()?.split('-');

            let min: usize = split_range.next()?.parse().ok()?;
            let max: usize = split_range.next()?.parse().ok()?;

            let rest = splitc.next()?;
            let c = rest.chars().next()?;
            let pw = &rest[3..];

            Some((min, max, c, pw))
        })
        .collect();

    let part1 = rules
        .iter()
        .filter(|(min, max, c, pw)| {
            let c = &pw.chars().filter(|n| n == c).count();
            min <= c && c <= max
        })
        .count();

    let part2 = rules
        .iter()
        .filter(|(min, max, c, pw)| {
            let mut chars = pw.chars();
            let a = chars.nth(min - 1) == Some(*c);
            let b = chars.nth(max - min - 1) == Some(*c);
            a ^ b
        })
        .count();

    let elapsed = instant.elapsed();
    if print {
        dbg!(elapsed, part1, part2);
    }
    elapsed
}