<?php

namespace traits;

trait init_systems {
    
    private static function get_init_system(): string|false {
        $a_init_systems = [
          '/etc/systemd'=>'systemd', 
          '/etc/init.d'=>'sys_v_init', 
          '/etc/init'=>'upstart', 
          '/etc/runlevels'=>'open_rc', 
          '/etc/runit'=>'runit',
        ];
        foreach($a_init_systems as $init_dir=>$init_system_name) {
            if (file_exists($init_dir) && is_dir($init_dir)) {
                return $init_system_name;
            }
        }
        return false;
    }
    
  public static function service(string $name, string $action = 'restart') {
     $my_init = self::get_init_system();
     if ($my_init === false) {
         return false;
     }
     $namespaced = "\\init_systems\\{$my_init}::service";
     return $namespaced($name, $action);
  }

  public static function systemctl(string $name, string $action = 'enable') {
     $my_init = self::get_init_system();
     if ($my_init === false) {
         return false;
     }
     $namespaced = "\\init_systems\\{$my_init}::systemctl";
     return $namespaced($name, $action);
  }
  
}