require_relative 'logger'
module Remon
  module Helper

    include Logger

    def cmd(command, error_msg: nil, return_output: true, env: {}, shell: false)
      if command.is_a? Array
        command_arr = command
        command_str = command.join(" ")
      else
        command_arr = command.split
        command_str = command
      end
      logger.debug command_str

      run_command = shell ? command_str : command_arr
      output = if return_output
        IO.popen(env, run_command) { |f| f.read }
      else
        system(env, run_command, 2 => 1)
      end
      exitstatus = $?.exitstatus

      if exitstatus != 0
        error_msg ||= "non zero exit for \"#{command_str}\""
        raise Error, error_msg
      end
      return output
    end

    def safe_cmd(*args, **kwargs)
      output = cmd(*args, **kwargs)
      return $?.exitstatus, output
    rescue => e
      logger.debug e.message
      return -1, nil
    end

  end
end