#!/usr/bin/ruby
curpath = __dir__
require 'rubygems'
require 'optparse'
require 'fileutils'

ARGV.options { |opt|
  opt.summary_indent = ' ' * 2
  opt.banner = "Usage:\n#{opt.summary_indent}#{File.basename($0)} [options] [new|ui DIRECTORY]\n"
  opt.on("Options:")
  opt.on("--help", "-h", "This text") { puts opt; exit }
  opt.on("[new DIRECTORY] scaffolds a sample execution engine. Everything except instances can be removed for default behaviour.")
  opt.on("[ui  DIRECTORY] symlinks/updates the UI.")
  opt.parse!
}
if ARGV.length != 2 || !%w(ui new).include?(ARGV[0])
  puts ARGV.options
  exit
end
command = ARGV[0]
dir     = ARGV[1]

if command == 'ui'
  if !File.exists?(dir) || File.symlink?(dir)
    FileUtils.ln_sf("#{curpath}/../cockpit",dir)
  else
    puts "File or directory with this name already exists."
  end
else
  if !File.exists?(dir)
    FileUtils.cp_r("#{curpath}/server/",dir)
    FileUtils.mkdir("#{dir}/instances") rescue nil
    FileUtils.mkdir("#{dir}/resources") rescue nil
    FileUtils.mkdir("#{dir}/handlerwrappers") rescue nil
  else
    puts "Directory already exists."
  end
end