#[cfg(feature = "run_bindgen")]
extern crate bindgen;
#[cfg(feature = "cpp_fallback")]
extern crate cc;

#[cfg(feature = "run_bindgen")]
use std::env;
#[cfg(feature = "run_bindgen")]
use std::path::PathBuf;

fn main() {
    println!(
        "cargo:rustc-env=TARGET={}",
        std::env::var("TARGET").unwrap()
    );
    let target = std::env::var("TARGET").unwrap();
    #[cfg(feature = "cpp_fallback")]
    {
        let mut build = cc::Build::new();
        build.cpp(true);

        build.std("c++17");

        if target.starts_with("x86_64-") {
            build.flag("-DARCH_X64=1");
        }

        let compiler = build.get_compiler();
        let is_clang_cl =
            compiler.path().ends_with("clang-cl.exe") || compiler.path().ends_with("clang-cl");
        if compiler.is_like_gnu() || compiler.is_like_clang() || is_clang_cl {
            if target.starts_with("x86_64-") {
                build.flag("-mssse3");
            }
        }
        if compiler.is_like_clang() || is_clang_cl {
            // warning : src/dolemu/TextureDecoder/TextureDecoder_x64.cpp(1177,75): warning: unused parameter 'tlut' [-Wunused-parameter]
            // warning : TextureFormat texformat, const u8* tlut, TLUTFormat tlutfmt,
            // warning : ^
            build.flag("-Wno-unused-parameter");
        }

        build.include(".").include("src");
        build.file("src/ImagePlatform.cpp");
        build.file("src/dolemu/MathUtil.cpp");
        build.file("src/dolemu/CPUDetect/GenericCPUDetect.cpp");
        build.file("src/dolemu/CPUDetect/x64CPUDetect.cpp");
        build.file("src/dolemu/TextureDecoder/TextureDecoder_Common.cpp");
        build.file("src/dolemu/TextureDecoder/TextureDecoder_Generic.cpp");
        build.file("src/dolemu/TextureDecoder/TextureDecoder_x64.cpp");
        build.file("src/bindings.cpp");
        build.compile("gctex.a");
    }
    #[cfg(feature = "run_bindgen")]
    {
        let bindings = bindgen::Builder::default()
            .header("src/bindings.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");
    }
}