use cc::Build;
use std::path::{Path, PathBuf};
use std::fs::read_dir;

fn main() {
  println!("Running build script");

  let most_src = Path::new("vendor/most-5.1.0/src");
  println!("Most src path: {}", most_src.display());

  let c_files: Vec<PathBuf> = read_dir(most_src).unwrap()
    .into_iter()
    .filter(|entry| {
      let path = entry.as_ref().unwrap().path();
      match path.file_name() {
        Some(s) if s.to_string_lossy() == "chkslang.c" => return false,
        //Some(s) if s.to_string_lossy() == "main.c" => return false,
        _ => ()
      };
      match path.extension() {
        Some(ref s) if s.to_string_lossy() == "c" => true,
        _ => false
      }
    })
  .map(|entry| {
    entry.unwrap().path()
  }).collect();

  for entry in c_files.iter() {
    println!("Including C source file: {}", entry.display());
  }

  Build::new()
    .files(c_files)
    .include(most_src)
    .include("/usr/bin/slang.h")
    .flag("-lslang")
    .compile("most");

  println!("cargo:rustc-link-lib=dylib=slang");
}