use std::{fs::read_to_string};

const ITERATIONS: u32 = 256;
const NEW_FISH_LIFETIME: u8 = 8;

fn main() {
    let input_char_vec = read_to_string("./input.txt").expect("ERROR reading file");
    let split_input = input_char_vec.split(",").collect::<Vec<&str>>();
    let mut fish: Vec<u8> =  split_input.iter().map(
        |x| x.parse::<u8>().unwrap()
    ).collect();

    print_fish(&fish, -1);

    for _i in 1..ITERATIONS + 1 {
        for fi in 0..fish.len() {
            let current_timer = fish[fi];
            if current_timer == 0 {
                fish[fi] = 6;
                fish.push(NEW_FISH_LIFETIME);
            } else {
                fish[fi] = current_timer - 1;
            }
        }
        println!("Interation {} of {}, {}", _i, ITERATIONS, fish.len());
        //print_fish(&fish, _i as i32);
    }


    println!("Final Number of Fish: {}", fish.len());
}

fn print_fish(fish: &Vec<u8>, iteration: i32){
    let fish_copy = fish.to_owned();
    print!("Iteration: {}, Fish: ", iteration);
    for f in fish_copy {
        print!("{}, ", f);
    }
    print!("\n");
}