#!/usr/bin/env ruby

require "knj/autoload"

mode = ARGV[0]

if mode.to_s.length <= 0
  print "No mode was given.\n"
  exit
elsif mode != "dev" and mode != "original"
  print "Invalid mode: #{mode}\n"
  exit
end

checks = [
  "/usr/share/php/knjphpframework",
  "/usr/lib/ruby/1.8/knjrbfw"
]

checks.each do |dir|
  dev_name = dir + "_dev"
  original_name = dir + "_original"
  
  if mode == "dev"
    if File.exists?(dir) and File.symlink?(dir)
      #do nothing.
    elsif File.exists?(dir) and !File.exists?(original_name)
      File.rename(dir, original_name)
      File.rename(dev_name, dir)
    end
  elsif mode == "original"
    if File.exists?(dir) and File.exists?(original_name) and File.symlink?(dir)
      File.rename(dir, dev_name)
      File.rename(original_name, dir)
    else
      #do nothing.
    end
  else
    raise "No such mode: #{mode}"
  end
end