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

fn main() {
    let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
    let pxl8_src = PathBuf::from(&manifest_dir).join("../src");

    println!("cargo:rerun-if-changed=../src/bsp/pxl8_bsp.h");
    println!("cargo:rerun-if-changed=../src/core/pxl8_log.c");
    println!("cargo:rerun-if-changed=../src/core/pxl8_log.h");
    println!("cargo:rerun-if-changed=../src/core/pxl8_types.h");
    println!("cargo:rerun-if-changed=../src/math/pxl8_math.c");
    println!("cargo:rerun-if-changed=../src/math/pxl8_math.h");
    println!("cargo:rerun-if-changed=../src/net/pxl8_protocol.c");
    println!("cargo:rerun-if-changed=../src/net/pxl8_protocol.h");
    println!("cargo:rerun-if-changed=../src/sim/pxl8_sim.c");
    println!("cargo:rerun-if-changed=../src/sim/pxl8_sim.h");
    println!("cargo:rerun-if-changed=../src/vxl/pxl8_vxl.c");
    println!("cargo:rerun-if-changed=../src/vxl/pxl8_vxl.h");

    cc::Build::new()
        .file(pxl8_src.join("core/pxl8_log.c"))
        .file(pxl8_src.join("hal/pxl8_mem.c"))
        .file(pxl8_src.join("math/pxl8_math.c"))
        .file(pxl8_src.join("math/pxl8_noise.c"))
        .file(pxl8_src.join("sim/pxl8_sim.c"))
        .file(pxl8_src.join("vxl/pxl8_vxl.c"))
        .include(pxl8_src.join("bsp"))
        .include(pxl8_src.join("core"))
        .include(pxl8_src.join("hal"))
        .include(pxl8_src.join("math"))
        .include(pxl8_src.join("net"))
        .include(pxl8_src.join("sim"))
        .include(pxl8_src.join("vxl"))
        .compile("pxl8");

    let bindings = bindgen::Builder::default()
        .header(pxl8_src.join("core/pxl8_log.h").to_str().unwrap())
        .header(pxl8_src.join("sim/pxl8_sim.h").to_str().unwrap())
        .header(pxl8_src.join("vxl/pxl8_vxl.h").to_str().unwrap())
        .header(pxl8_src.join("math/pxl8_noise.h").to_str().unwrap())
        .clang_arg(format!("-I{}", pxl8_src.join("bsp").display()))
        .clang_arg(format!("-I{}", pxl8_src.join("core").display()))
        .clang_arg(format!("-I{}", pxl8_src.join("math").display()))
        .clang_arg(format!("-I{}", pxl8_src.join("net").display()))
        .clang_arg(format!("-I{}", pxl8_src.join("sim").display()))
        .clang_arg(format!("-I{}", pxl8_src.join("vxl").display()))
        .blocklist_item("FP_NAN")
        .blocklist_item("FP_INFINITE")
        .blocklist_item("FP_ZERO")
        .blocklist_item("FP_SUBNORMAL")
        .blocklist_item("FP_NORMAL")
        .use_core()
        .rustified_enum(".*")
        .generate()
        .expect("Unable to generate bindings");

    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings
        .write_to_file(out_path.join("pxl8.rs"))
        .expect("Couldn't write bindings");
}