// Copyright 2019 Joe Wilm, The Alacritty Project Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use gl_generator::{Api, Fallbacks, GlobalGenerator, Profile, Registry};

use std::env;
use std::fs::File;
use std::path::Path;

#[cfg(windows)]
use embed_resource;

fn main() {
    if cfg!(not(any(feature = "x11", feature = "wayland", target_os = "macos", windows))) {
        panic!("at least one of the \"x11\"/\"wayland\" features must be enabled");
    }

    let hash = rustc_tools_util::get_commit_hash().unwrap_or_default();
    println!("cargo:rustc-env=GIT_HASH={}", hash);

    let dest = env::var("OUT_DIR").unwrap();
    let mut file = File::create(&Path::new(&dest).join("gl_bindings.rs")).unwrap();

    Registry::new(Api::Gl, (4, 5), Profile::Core, Fallbacks::All, ["GL_ARB_blend_func_extended"])
        .write_bindings(GlobalGenerator, &mut file)
        .unwrap();

    #[cfg(windows)]
    embed_resource::compile("../extra/windows/windows.rc");
}