fn main() -> Result<(), std::io::Error> {
    let manifest_dir = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));

    let out_dir = manifest_dir.join("proto");
    let proto_files = manifest_dir.join("src");

    std::fs::create_dir_all(out_dir.clone())?;

    println!("Protobuf directory: {}", proto_files.display());
    println!("output directory: {}", out_dir.display());

    tonic_build::configure()
        .build_client(true)
        .build_server(false)
        .format(true)
        .out_dir(&out_dir)
        .compile(
            &[
                proto_files.join("confirmed_block.proto"),
                proto_files.join("transaction_by_addr.proto"),
            ],
            &[proto_files],
        )
}