require_relative('system/architecture')

module System
  
  def self.detect_os
    case RUBY_PLATFORM
    when /darwin/
      :macos
    when /linux/
      if File.exist?('/etc/debian_version')
        :debian
      else
        :linux_other
      end
    else
      :unknown
    end
  end

  OS = detect_os

  case OS
    
  when :macos
    require_relative './system/macos'
    extend MacOSSystem
  when :debian
    require_relative './system/debian'
    extend DebianSystem
  else
    raise "Operating system not supported"
  end

  ARCH = normalize_architecture_string(arch)

  def self.os_info
    puts os_name
  end

  def self.qemu_paths
    {
      code_fd: qemu_code_fd_path,
      vars_fd: qemu_vars_fd_path
    }
  end

  def self.arch_to_symbol(arch)
    normalize_architecture_string(arch)
  end


  def self.exec_ssh(port) 
    require "socket"

    host = "localhost"
    cmd  = "ssh -p #{port} user@#{host}"

    # Wait until the port is open
    puts "Waiting for #{host}:#{port}..."
    until begin
          TCPSocket.new(host, port).close
          true
        rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH, SocketError
          false
        end
      sleep 0.1
    end

    puts "Port open! Executing: #{cmd}"
    exec cmd
  end
end