extern crate bindgen;
use cc;

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

fn main() {
    println!("cargo:rerun-if-changed=src/pcsensor.c");
    bind();
    compile_pcsensor();
    link();
}

fn bind() {
    let bindings = bindgen::Builder::default()
        .header("/usr/include/libusb-1.0/libusb.h")
        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
        .generate()
        .expect("Unable to generate bindings");

    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings
        .write_to_file(out_path.join("bindings.rs"))
        .expect("Couldn't write bindings!");
}

fn compile_pcsensor() {
    cc::Build::new()
    .file("src/pcsensor.c")
    .shared_flag(true)
    .static_flag(true)
    .compile("pcsensor");
}

fn link() {
    println!("cargo:rustc-link-lib=pcsensor");
    println!("cargo:rustc-link-lib=usb");
}