use std::fs::File;
use std::io::{self, BufRead};
use std::path::Path;

pub fn part_one() {
    if let Ok(lines) = read_lines("./input.txt") {
        let mut result = 0;

        for line in lines {
            result += process_line(&line.unwrap());
        }

        println!("{}", result);
    }
}

fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
where
    P: AsRef<Path>,
{
    let file = File::open(filename)?;
    Ok(io::BufReader::new(file).lines())
}

fn process_line(s: &str) -> u32 {
    let v: Vec<&str> = s.split(':').collect();

    let game_id: u32 = v[0].split("Game ").collect::<Vec<&str>>()[1]
        .parse::<u32>()
        .unwrap();
    let games: Vec<&str> = v[1].split(';').collect();

    for game in games {
        let valid_game = process_game(game);

        if !valid_game {
            return 0;
        }
    }

    return game_id;
}

fn process_game(s: &str) -> bool {
    let cubes: Vec<&str> = s.split(',').collect();

    for cube in cubes {
        let cube_parts: Vec<&str> = cube.trim().split(' ').collect();
        let cube_num = cube_parts[0].parse::<u32>().unwrap();

        if cube_parts[1] == "red" && cube_num > 12 {
            return false;
        } else if cube_parts[1] == "green" && cube_num > 13 {
            return false;
        } else if cube_parts[1] == "blue" && cube_num > 14 {
            return false;
        }
    }

    return true;
}