use std::error::Error;
use std::fmt;
use std::io;
use std::ops::Deref;

use command_runner::CommandRunner;
use symbols::Symbol;
use symbols::file::File as FileSymbol;
use resources::Resource;

pub struct NginxReload<'a> {
  command_runner: &'a CommandRunner,
}

use std::borrow::Cow;

impl<'a> NginxReload<'a> {
  pub fn new(command_runner: &'a CommandRunner) -> Self {
    NginxReload {
      command_runner: command_runner
    }
  }
}

impl<'a> Symbol for NginxReload<'a> {
  fn target_reached(&self) -> Result<bool, Box<Error>> {
    Ok(true)
  }

  fn execute(&self) -> Result<(), Box<Error>> {
    try!(self.command_runner.run_with_args("systemctl", &["reload-or-restart", "nginx"]));
    Ok(())
  }
}

impl<'a> fmt::Display for NginxReload<'a> {
  fn fmt(&self, f: &mut fmt::Formatter) -> Result<(),fmt::Error>{
    write!(f, "Reload nginx server")
  }
}