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//! Dump a BinJS file structure to stdout.

extern crate binjs;
extern crate clap;
extern crate env_logger;

use binjs::io::Deserialization;
use binjs::io::FileStructurePrinter;

use std::fs::File;
use std::io::*;

use clap::*;

fn main() {
    env_logger::init();

    let matches = App::new("BinJS dumper")
        .author(
            "Tooru Fujisawa [:arai], <arai@mozilla.com>,\n\
             David Teller, <dteller@mozilla.com>",
        )
        .about("Dump a JavaScript BinJS file structure to stdout.")
        .args(&[Arg::with_name("INPUT")
            .required(true)
            .help("Input file to use. Must be a BinJS source file.")])
        .get_matches();

    let source_path = matches.value_of("INPUT").expect("Expected input file");

    println!("Reading.");
    let file = File::open(source_path).expect("Could not open source");
    let stream = BufReader::new(file);

    println!("Attempting to decode as multipart.");
    if let Ok(mut reader) = binjs::io::multipart::TreeTokenReader::new(stream) {
        reader.enable_file_structure_print();
        let mut deserializer = binjs::specialized::es6::io::Deserializer::new(reader);
        let _tree: binjs::specialized::es6::ast::Script = deserializer
            .deserialize(&mut binjs::specialized::es6::ast::IOPath::new())
            .expect("Could not decode");
    } else {
        println!("not supported format.");
    };
}