use std::fs;

#[allow(dead_code)]
pub fn solve() {
    let file = fs::read_to_string("src/day5/input.txt").expect("You didn't provide input.txt.");

    let mut reading_ranges = true;
    let mut fresh_products = vec![];
    let mut ranges = vec![];
    for line in file.lines() {
        if line.is_empty() {
            reading_ranges = false;
            continue;
        }

        if reading_ranges {
            let mut parts = line.split("-");
            let start = parts.next().unwrap().parse::<usize>().unwrap();
            let end = parts.next().unwrap().parse::<usize>().unwrap();
            let range = start..=end;
            ranges.push(range);
        } else {
            let value = line.parse::<usize>().unwrap();
            for range in &ranges {
                if range.contains(&value) {
                    fresh_products.push(value);
                    break;
                }
            }
        }
    }

    println!("Fresh products: {:?}", fresh_products.len());
}