use std::{
    env::args,
    fs::File,
    io::{BufReader, Seek, SeekFrom, stdout},
};
use unity_tools::{
    object::{Value, read_value},
    serialized_file::read_serialized_file,
    unityfs::UnityFS,
};

fn main() -> anyhow::Result<()> {
    env_logger::init_from_env("LOG");
    let file = BufReader::new(File::open(args().nth(1).unwrap())?);
    let mut fs = UnityFS::open(file)?;
    let filter = args().nth(2);

    for node in fs.nodes().to_vec() {
        if node.name.ends_with(".resource") || node.name.ends_with(".resS") {
            continue;
        }
        let mut cab = fs.read(&node)?;
        let file = read_serialized_file(&mut cab)?;
        let e = file.endianness;

        for ob in file.objects {
            cab.seek(SeekFrom::Start(ob.data_offset))?;
            let typetree = if ob.type_id < 0 {
                unimplemented!()
            } else {
                &file.types[ob.type_id as usize]
            };
            let value = read_value(typetree.type_tree.as_ref().unwrap(), e, &mut cab)?;
            if let Some(f) = &filter {
                if let Value::Object { class, .. } = &value {
                    if class != f {
                        continue;
                    }
                } else {
                    continue;
                }
            }
            serde_json::to_writer(stdout(), &value.to_json()).unwrap();
            println!()
        }
    }

    Ok(())
}