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

fn main() {
    let out_dir = env::var("OUT_DIR").unwrap();

    println!("Extracting FFMPEG");
    assert!(Command::new("tar")
        .args(&["-xvjf", "./ffmpeg-2.7.2.tar.bz2"])
        .current_dir("./dep")
        .status()
        .unwrap()
        .success());

    let ffmpeg_root = Path::new("./dep/ffmpeg-2.7.2");
    assert!(env::set_current_dir(&ffmpeg_root).is_ok());

    let p = env::current_dir().unwrap();
    println!("The current directory is {}", p.display());

    println!("Configuring FFMPEG");
    assert!(Command::new("sh")
      .arg("./configure")
      .arg("--prefix=../../build")
      .arg("--disable-programs")
      .status()
      .unwrap()
      .success());

    println!("Compiling FFMPEG");
    assert!(Command::new("make")
      .args(&["-R", &format!("-j{}", env::var("NUM_JOBS").unwrap())])
      .status()
      .unwrap()
      .success());

    assert!(Command::new("make")
      .arg("install")
      .status()
      .unwrap()
      .success());

    println!("cargo:rustc-link-search=native={}", out_dir);
}