use std::fs::File;
use std::io::{BufReader};
use std::io::prelude::*;

fn main(){
    let file = File::open("./input.txt").expect("Read failed");
    let reader = BufReader::new(file);

    let mut current_depth = 0;
    let mut current_horizontal = 0;

    let all_lines = reader.lines();


    for line in all_lines{
        let line_as_string = line.unwrap();
        let split_line = line_as_string.split_whitespace().collect::<Vec<&str>>();
        let direction = split_line[0];
        let distance = split_line[1].parse::<i32>().unwrap();

        match direction {
            "forward" => current_horizontal += distance,
            "down" => current_depth += distance,
            "up" => current_depth -= distance,
            _ => println!("You should never be here")
        }
    }



    println!("Depth: {}, Horizontal: {}, Result: {}", current_depth, current_horizontal, current_horizontal*current_depth)



}