#!/usr/bin/env ruby
require 'rubygems'
require 'optparse'

args = ARGV
options = {
  :action => :gem
}

begin
  OptionParser.new do |opts|
    opts.banner = "Usage: comatose [options] RAILS_ROOT"
    
    opts.on("-g", "--gem", "Initialize to run from gem (DEFAULT)") do |s| 
      options[:action] = :gem
      puts "GEM"
    end

    opts.on("-p", "--plugin", "Install as plugin") do |s| 
      options[:action] = :plugin
      puts "PLUGIN"
    end

    opts.on("-u", "--update", "Update current installation (CURRENTLY UNIMPLEMENTED)") do |s| 
      options[:action] = :update
      puts "UPDATE"
    end

    opts.separator ""
            opts.separator "Common options:"

    # No argument, shows at tail.  This will print an options summary.
    # Try it and see!
    opts.on_tail("-h", "--help", "Show this message") do
      puts opts
      exit
    end

    # Another typical switch to print the version.
    opts.on_tail("--version", "Show version") do
      require 'comatose/version'
      puts Comatose::VERSION_STRING
      exit
    end

  end.parse!(args)
rescue OptionParser::ParseError => e
  puts e
end

if args.length == 0
  puts "No action taken."
  exit 
end

RAILS_ROOT = File.expand_path( args.last )

class String
  def /(string)
    File.join(self, string)
  end
end

unless File.directory?(RAILS_ROOT) and File.exists?( RAILS_ROOT / 'config'/ 'boot.rb' )
  puts "Not a valid rails application path."
  exit
end

comatose_initializer_path = RAILS_ROOT / 'config' / 'initializers' / 'comatose.rb'

unless File.exists?( comatose_initializer_path )
  File.open(comatose_initializer_path, 'w') do |f|
    f.write <<-EOT
    require 'comatose'
    
    # 1.) You should add the following snippet to your environment.rb too, probably...
    #
    #        gem 'comatose' 
    #
    # 2.) Following is an example configuration block for Comatose:    
    #
    Comatose.configure do |config|
      # Includes AuthenticationSystem in the ComatoseController
      #config.includes << :authenticated_system

      # admin 
      #config.admin_title = "My Content"
      #config.admin_sub_title = "Content for the rest of us..."

      # Includes AuthenticationSystem in the ComatoseAdminController
      #config.admin_includes << :authenticated_system

      # Calls :login_required as a before_filter
      #config.admin_authorization = :login_required
      # Returns the author name (login, in this case) for the current user
      #config.admin_get_author do
      #  current_user.login
      #end
      
      # See the getting started guide at http://comatose.rubyforge.org for more...
    end
EOT
  end
else
  puts "Comatose initializer already exists (at #{comatose_initializer_path})"
end

puts "Done."