use metrify::run;
use std::env;
use std::io;
use std::io::Write;
use std::process;

fn main() {
	let args: Vec<String> = env::args().collect();
	let name = args[0].clone();
	let args = args[1..].join(" ");

	let mut input = args;

	if input.len() == 0 {
		print!("> ");
		match io::stdout().flush() {
			Ok(_) => {}
			Err(err) => {
				eprintln!("{name}: Error: {err}");
				process::exit(1);
			}
		}
		match io::stdin().read_line(&mut input) {
			Ok(_) => {}
			Err(err) => {
				eprintln!("{name}: Error: {err}");
				process::exit(1);
			}
		}
	}

	match run(&input) {
		Ok(str) => println!("{str}"),
		Err(err) => {
			eprintln!("{name}: Error: {err}");
			process::exit(1);
		}
	}
}