extern crate clap;
extern crate huia_parser;

use clap::{App, Arg};
use std::fs;
use std::process;

const VERSION: &'static str = env!("CARGO_PKG_VERSION");

fn main() {
    let matches = App::new("huiac")
        .version(VERSION)
        .author("James Harton <james@automat.nz>")
        .about("The compiler for the Huia programming language.")
        .arg(
            Arg::with_name("INPUT")
                .help("The source file to compile")
                .required(true)
                .index(1),
        )
        .get_matches();

    let source_path = matches.value_of("INPUT").unwrap();
    let source_file = fs::read_to_string(source_path).expect("Unable to read input file");
    let result = huia_parser::parse_file(&source_file);

    if result.is_ok() {
        println!("{:#?}", result.unwrap());
        process::exit(0);
    } else {
        println!("{}", result.err().unwrap());
        process::exit(1);
    }
}