#![allow(dead_code)]

mod common;
//mod syn;
mod vm;

use std::{convert::TryFrom, env, fs, io, process};

type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;

fn get_input_string() -> io::Result<String> {
    let args: Vec<String> = env::args().collect();
    if args.len() <= 1 {
        println!(
            "usage: {} file.asm",
            args.get(0).map(String::as_str).unwrap_or("rasp")
        );
        process::exit(1);
    } else {
        fs::read_to_string(&args[1])
    }
}

fn main() -> Result<()> {
    use vm::obj::syn::parser::SectionsParser;
    let contents = get_input_string()?;
    let ast = match SectionsParser::new().parse(&contents) {
        Ok(ast) => ast,
        Err(err) => {
            eprintln!("{}", err);
            process::exit(1);
        }
    };
    let obj = vm::obj::obj::Object::try_from(&ast)?;
    //println!("{:#?}", obj);
    let mut vm = vm::vm::Vm::new();
    vm.load_object(obj, 1024 * 1024 * 64)?; // 64mb
    let status = vm.run()?;
    println!("status: {}", status);
    Ok(())
}