fn main() {
    let hash = std::process::Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output()
        .ok()
        .and_then(|o| String::from_utf8(o.stdout).ok())
        .unwrap_or_default();
    let hash = hash.trim();
    println!("cargo:rustc-env=GIT_COMMIT={}", if hash.is_empty() { "unknown" } else { hash });
    println!("cargo:rerun-if-changed=.git/HEAD");

    // Embed Windows icon when cross-compiling for Windows
    if std::env::var("CARGO_CFG_TARGET_OS").as_deref() == Ok("windows") {
        let mut res = winres::WindowsResource::new();
        res.set_icon("../../assets/icon.ico");
        // Set cross-compile toolkit (mingw-w64)
        res.set_toolkit_path("/usr");
        res.set_windres_path("x86_64-w64-mingw32-windres");
        res.set_ar_path("x86_64-w64-mingw32-ar");
        res.compile().unwrap_or_else(|e| eprintln!("winres warning: {e}"));
    }
}