use dmn::dice;
use dmn::random_tables::RandomTables;

mod cli;

fn main() {
    let matches = cli::cli().get_matches();
    let random_tables = RandomTables::new().unwrap();

    match matches.subcommand() {
        Some(("random", sub_matches)) => {
            // TODO: Do something better than unwrap here.
            let random_command = sub_matches.subcommand().unwrap();
            match random_command {
                ("henchman", _) => {
                    let race = random_tables.roll_table("henchman_race");
                    let alignment = random_tables.roll_table("npc_alignment");
                    let class = random_tables.roll_table("henchman_class");
                    println!("{} {} {}", alignment, race, class);
                }
                ("magic", _) => {
                    let magic = random_tables.roll_table("ua_magic");
                    println!("{}", magic);
                }
                _ => unreachable!(),
            }
        }
        Some(("roll", sub_matches)) => {
            let formula = sub_matches.get_one::<String>("FORMULA").expect("required");
            match dice::roll_formula(formula) {
                Some(roll_result) => println!("Rolled: {}", roll_result),
                None => eprintln!("Error: Invalid roll formula or calculation failed."),
            }
        }
        Some(("table", sub_matches)) => {
            let table_name = sub_matches.get_one::<String>("TABLE").expect("required");
            let output_text = random_tables.roll_table(table_name);
            println!("{}", output_text)
        }
        _ => unreachable!(),
    }
}