//! Command line interface for the dust programming language.
use clap::Parser;
use std::fs::read_to_string;
use tree_sitter::{Parser as TSParser, Language};

/// Command-line arguments to be parsed.
#[derive(Parser, Debug)]
#[command(author, version, about, long_about = None)]
struct Args {
    /// Whale source code to evaluate.
    #[arg(short, long)]
    command: Option<String>,

    /// Location of the file to run.
    path: Option<String>,
}

fn main() {
    let args = Args::parse();

    if args.path.is_none() && args.command.is_none() {
        todo!();
    }

    if let Some(path) = args.path {
        let file_contents = read_to_string(path).unwrap();

        let mut parser = TSParser::new();
        parser.set_language(tree_sitter_dust::language()).unwrap();
        let tree = parser.parse(&file_contents, None).unwrap();
        let root = tree.root_node();

        tree_sitter_dust::evaluate(root);

        println!("{tree:?}");
    }
}