extern crate bitsy_parser;
use bitsy_parser::game::Game;
use std::{env, fs};

fn main() {
    let game_a = env::args()
        .nth(1)
        .expect("No main game specified. Usage: `bitsy-merge main.bitsy additional.bitsy output.bitsy`");

    // todo allow numerous additional games
    let game_b = env::args()
        .nth(2)
        .expect("No additional game specified. Usage: `bitsy-merge main.bitsy additional.bitsy output.bitsy`");

    let outfile = env::args()
        .nth(3)
        .expect("No output file specified. Usage: `bitsy-merge main.bitsy additional.bitsy output.bitsy`");

    let mut game_a = Game::from(fs::read_to_string(game_a).unwrap()).unwrap();
    let     game_b = Game::from(fs::read_to_string(game_b).unwrap()).unwrap();

    game_a.merge(game_b);

    fs::write(outfile, game_a.to_string())
        .expect("Failed to write output file");
}