extern crate bindgen;

use std::env;
use std::path::PathBuf;
use std::process::Command;

fn main() {
    // Tell cargo to look for shared libraries in the specified directory
    // println!("cargo:rustc-link-search={}", PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()).join("src/libmediainfo_AllInclusive/ZenLib/Project/GNU/Library/.libs").to_str().unwrap());
    // println!("cargo:rustc-link-search={}", PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()).join("src/libmediainfo_AllInclusive/MediaInfoLib/Project/GNU/Library/.libs").to_str().unwrap());
    // println!("cargo:rustc-link-search={}", PathBuf::from(env::var("OUT_DIR").unwrap()).join("../../../deps").to_str().unwrap());
    println!("cargo:rustc-link-search=/opt/homebrew/Cellar/media-info/22.12/lib");

    println!("cargo:rustc-link-lib=z");
    println!("cargo:rustc-link-lib=zen");
    println!("cargo:rustc-link-lib=mediainfo");

    // shared_libs();
    bindings();
}

fn build_dep(path: &str) {
    println!("Path: {}", path);

    Command::new("bash")
        .current_dir(path)
        .arg("-c")
        .arg("./autogen.sh && ./configure --enable-static && make")
        .output()
        .unwrap();

    for file in std::fs::read_dir(PathBuf::from(path).join(".libs"))
        .unwrap()
        .filter_map(Result::ok)
        .filter(|entry| entry.file_type().unwrap().is_file())
    {
        std::fs::copy(
            file.path(),
            PathBuf::from(env::var("OUT_DIR").unwrap())
                .join("../../../deps")
                .join(file.file_name().to_str().unwrap()).to_str().unwrap())
            .unwrap();
    }
}

fn shared_libs() {
    build_dep("src/libmediainfo_AllInclusive/ZenLib/Project/GNU/Library");
    build_dep("src/libmediainfo_AllInclusive/MediaInfoLib/Project/GNU/Library");
}

fn bindings() {
    // Tell cargo to invalidate the built crate whenever the wrapper changes
    println!("cargo:rerun-if-changed=src/mediainfo.h");

    // The bindgen::Builder is the main entry point
    // to bindgen, and lets you build up options for
    // the resulting bindings.
    let bindings = bindgen::Builder::default()
        // The input header we would like to generate
        // bindings for.
        .header("src/mediainfo.h")
        // Tell cargo to invalidate the built crate whenever any of the
        // included header files changed.
        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
        // Finish the builder and generate the bindings.
        .generate()
        // Unwrap the Result and panic on failure.
        .expect("Unable to generate bindings");

    // Write the bindings to the $OUT_DIR/bindings.rs file.
    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings
        .write_to_file(out_path.join("bindings.rs"))
        .expect("Couldn't write bindings!");
}