//! Build script linking the C++ vision backend into the Rust cdylib.
fn main() {
    let project_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
    let root_dir = std::path::Path::new(&project_dir).parent().unwrap();
    let lib_dir = root_dir.join("build").join("lib");

    println!("cargo:rustc-link-search=native={}", lib_dir.display());
    println!("cargo:rustc-link-lib=dylib=visioncpp");
    println!("cargo:rustc-link-lib=dylib=ggml");
    println!("cargo:rustc-link-lib=dylib=ggml-cpu");
    println!("cargo:rustc-link-lib=dylib=ggml-base");

    // Look in the executable/plugin directory first, then in build/lib.
    println!("cargo:rustc-link-arg=-Wl,-rpath,$ORIGIN");
    println!("cargo:rustc-link-arg=-Wl,-rpath,{}", lib_dir.display());

    // Copy runtime dependencies next to the built plugin so both the
    // cargo target directory and the plugins/ staging directory work without
    // extra LD_LIBRARY_PATH setup.
    let target_dir = std::path::Path::new(&project_dir)
        .join("..").join("..").join("target")
        .join(std::env::var("PROFILE").unwrap());
    if target_dir.exists() {
        let libs = [
            "libvisioncpp.so", "libvisioncpp.so.0", "libvisioncpp.so.0.3.1",
            "libggml.so", "libggml.so.0", "libggml.so.0.9.9",
            "libggml-cpu.so", "libggml-cpu.so.0", "libggml-cpu.so.0.9.9",
            "libggml-base.so", "libggml-base.so.0", "libggml-base.so.0.9.9",
        ];
        for lib in &libs {
            let src = lib_dir.join(lib);
            let dst = target_dir.join(lib);
            if src.exists() {
                std::fs::copy(&src, &dst).ok();
            }
        }
    }
}