use std::{env, path::Path};

fn main() {
    let out_dir = env::var("OUT_DIR").unwrap();
    let out_dir = Path::new(&out_dir);

    // TODO: add better error handling for when GGWAVE_PATH is not set
    let ggwave_path = env::var("GGWAVE_PATH").unwrap();
    let ggwave_path = Path::new(&ggwave_path);

    let ggwave_lib_dir = ggwave_path.join("lib");
    let ggwave_include_dir = ggwave_path.join("include");

    println!("cargo:rustc-link-search=native={ggwave_lib_dir:?}");
    println!("cargo:rustc-link-lib=ggwave");

    let bindings = bindgen::Builder::default()
        .header(ggwave_include_dir.join("ggwave/ggwave.h").to_string_lossy())
        .clang_args(["-x", "c++"])
        .derive_debug(true)
        .derive_default(true)
        .generate()
        .unwrap();

    let bindings_path = out_dir.join("bindings.rs");
    bindings.write_to_file(&bindings_path).unwrap();
}