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#[cfg(unix)]
macro_rules! lock_process {
    ($lock_path:expr) => {
        let lock_file = fs::File::create($lock_path)?;
        let _lock = uvm_core::utils::lock_process_or_wait(&lock_file)?;
    };
}

#[cfg(windows)]
macro_rules! lock_process {
    ($lock_path:expr) => {};
}

use log::*;
use std::fs::DirBuilder;
use std::fs::File;
use std::path::{Path, PathBuf};
use std::process::{Command, Stdio};
use std::{fs, io};

pub mod error;
pub mod installer;
mod loader;

mod sys;

use self::installer::*;
use error::*;

pub use self::loader::Loader;
pub use self::sys::*;

pub struct UnityModule;
pub struct UnityEditor;

pub trait InstallHandler {
    fn install_handler(&self) -> Result<()>;

    fn install(&self) -> Result<()> {
        self.before_install()
            .chain_err(|| "pre install step failed")?;
        self.install_handler()
            .map_err(|err| {
                self.error_handler();
                err
            })
            .chain_err(|| "installation failed")?;
        self.after_install()
            .chain_err(|| "post install step failed")
    }

    fn error_handler(&self) {}

    fn before_install(&self) -> Result<()> {
        Ok(())
    }

    fn after_install(&self) -> Result<()> {
        Ok(())
    }
}