use std::fs;

use crate::{
    cli::{fatal, parse_args},
    parser::Parser,
};

mod ast;
mod cli;
mod diagnostic;
mod lexer;
mod parser;
mod token;

fn main() {
    let opts = parse_args();

    for file in &opts.files {
        let content = match fs::read_to_string(file) {
            Ok(content) => content,
            Err(error) => {
                fatal(format!(
                    "failed to read {}: {:?}",
                    file.display(),
                    error.kind()
                ));
            }
        };

        println!("-- {} --", file.display());
        let mut parser = Parser::new(&content);

        match parser.parse_expression(0) {
            Ok(ast) => println!("{ast:#?}"),
            Err(diag) => diag.report(file, &content),
        }
    }
}