use crate::random_tables::RandomTables;

mod cli;
mod dice;
mod random_tables;

fn main() {
    let matches = cli::cli().get_matches();

    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", _) => {
                    println!("Generating a random henchman...");
                }
                _ => 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 random_tables = RandomTables::new().unwrap();
            let table_name = sub_matches.get_one::<String>("TABLE").expect("required");
            let output_text = random_tables.roll_table(table_name);
            println!("{}", output_text)
        }
        _ => unreachable!()
    }
}