use std::env;
use std::path::PathBuf;

fn main() {
    println!("cargo:rerun-if-changed=build.rs");

    let out_dir: PathBuf = env::var("OUT_DIR").expect("OUT_DIR was not set").into();
    let dst = cmake::Config::new("src/libsettings/")
        .define("SKIP_UNIT_TESTS", "ON")
        .define("BUILD_SHARED_LIBS", "OFF")
        .define("libsettings_ENABLE_PYTHON", "OFF")
        .define("CMAKE_INSTALL_PREFIX", &out_dir)
        .build();

    println!("cargo:rustc-link-search=native={}/lib", dst.display());
    println!("cargo:rustc-link-lib=static=sbp");
    println!("cargo:rustc-link-lib=static=settings");
    println!("cargo:rustc-link-lib=static=swiftnav");

    let bindings = bindgen::Builder::default()
        .header("./libsettings_wrapper.h")
        .allowlist_function("settings_create")
        .allowlist_function("settings_destroy")
        .allowlist_function("settings_read_bool")
        .allowlist_function("settings_read_by_idx")
        .allowlist_function("settings_read_float")
        .allowlist_function("settings_read_int")
        .allowlist_function("settings_read_str")
        .allowlist_function("settings_write_str")
        .allowlist_type("settings_t")
        .allowlist_type("sbp_msg_callback_t")
        .allowlist_type("sbp_msg_callbacks_node_t")
        .allowlist_type("settings_api_t")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_MODIFY_DISABLED")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_OK")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_PARSE_FAILED")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_READ_ONLY")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_SERVICE_FAILED")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_SETTING_REJECTED")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_TIMEOUT")
        .allowlist_type("settings_write_res_e_SETTINGS_WR_VALUE_REJECTED")
        .clang_arg(format!("-I{}/include", dst.display()))
        .clang_arg(format!(
            "-I{}/third_party/libswiftnav/include",
            dst.display()
        ))
        .clang_arg(format!("-I{}/third_party/libsbp/c/include", dst.display()))
        .generate()
        .unwrap();

    bindings.write_to_file(out_dir.join("bindings.rs")).unwrap()
}