use std::io::{self, Write};

use day13::can_fit;

fn main() {
    let mut buffer = String::new();

    print!("Insert the weights separated by spaces: ");
    io::stdout().flush().expect("Failed to flush stdout.");

    io::stdin()
        .read_line(&mut buffer)
        .expect("Failed to read from stdin.");

    let weights: Vec<usize> = buffer
        .trim()
        .split(' ')
        .filter(|x| !x.is_empty())
        .map(|x| {
            x.parse()
                .expect("Only whole numbers and spaces are allowed.")
        })
        .collect();

    buffer = String::new();

    print!("Insert how many bags are available: ");
    io::stdout().flush().expect("Failed to flush stdout.");

    io::stdin()
        .read_line(&mut buffer)
        .expect("Failed to read from stdin.");

    let bags = buffer.trim().parse().expect("Integer expected.");

    if can_fit(&weights, bags) {
        println!("There are enough bags.");
    } else {
        println!("more bags are needed.");
    }
}