require 'rbconfig'

class ShatteredAppGenerator < Rails::Generator::Base #:nodoc:all
  DEFAULT_SHEBANG = File.join(Config::CONFIG['bindir'],
                              Config::CONFIG['ruby_install_name'])

  default_options   :gem => true, :shebang => DEFAULT_SHEBANG
  mandatory_options :source  => "#{File.dirname(__FILE__)}/../../../.."

  def initialize(runtime_args, runtime_options = {})
    super
    usage if args.empty?
    @destination_root = args.shift
  end

  def manifest
    script_options = { :chmod => 0755, :shebang => options[:shebang] }

    record do |m|
      # Root directory and all subdirectories.
      m.directory ''
      BASEDIRS.each { |path| m.directory path }

      # Root
      m.file "templates/Rakefile", "Rakefile"
      m.file "templates/README",         "README"

      # ogre plugins and configuration
      m.file "templates/configs/ogre_plugins.rcfg", "config/ogre_plugins.rcfg"
      m.template "templates/configs/ogre.cfg",    "config/ogre.cfg"
      m.template "templates/configs/boot.rb",    "config/boot.rb"

      # Environments
      m.file "templates/environments/environment.rb", "config/environment.rb"
      
      # Testing
      m.file "templates/test/test_helper.rb", "test/test_helper.rb"
      
      # Mac OSX
      m.file "templates/configs/Mac/shattered.app/Contents/Info.plist", "config/Mac/shattered.app/Contents/Info.plist"
      m.file "templates/configs/Mac/shattered.app/Contents/MacOS/shattered_mac", "config/Mac/shattered.app/Contents/MacOS/shattered_mac"
      m.file "templates/configs/Mac/shattered.app/Contents/pbdevelopment.plist", "config/Mac/shattered.app/Contents/pbdevelopment.plist"
      m.file "templates/configs/Mac/shattered.app/Contents/PkgInfo", "config/Mac/shattered.app/Contents/PkgInfo"
      m.file "templates/configs/Mac/shattered.app/Contents/Resources/English.lproj/InfoPlist.strings", "config/Mac/shattered.app/Contents/Resources/English.lproj/InfoPlist.strings"
      m.file "templates/configs/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/classes.nib", "config/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/classes.nib"
      m.file "templates/configs/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/info.nib", "config/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/info.nib"
      m.file "templates/configs/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/objects.nib", "config/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib/objects.nib"
      m.file "templates/configs/Mac/shattered.app/Contents/Resources/rb_main.rb", "config/Mac/shattered.app/Contents/Resources/rb_main.rb"
      
      # Scripts
      %w( generate runner console destroy ).each do |file|
        m.file "../bin/#{file}", "script/#{file}", script_options
      end

      m.file "templates/configs/runner.rb", "script/runner.rb"

      # Docs
      m.file "templates/doc/README_FOR_APP", "doc/README_FOR_APP"

      # Logs
      %w(ogre shattered).each { |file|
        m.file "templates/configs/empty.log", "log/#{file}.log", :chmod => 0666
      }
      
      # basic rmaterial
      m.file "templates/media/basic.rmaterial", "app/media/common/templates/basic.rmaterial"
      m.file "templates/media/offset_map.rmaterial", "app/media/common/templates/offset_map.rmaterial"
    end
  end

  protected
    def banner
      "Usage: #{$0} /path/to/your/app [options]"
    end

    def add_options!(opt)
      opt.separator ''
      opt.separator 'Options:'
      opt.on("--ruby [#{DEFAULT_SHEBANG}]",
             "Path to the Ruby binary of your choice.") { |options[:shebang]| }
      opt.on("--without-gems",
             "Don't use the Shattered gems for your app.",
             "This does not currently work.") { |options[:gem]| }
    end


  # Installation skeleton.  Intermediate directories are automatically
  # created so don't sweat their absence here.
  BASEDIRS = %w(
    app/models
    app/views
    app/media/common/programs
    app/media/common/templates
    config/Mac/shattered.app/Contents/MacOS
    config/Mac/shattered.app/Contents/Resources/English.lproj/MainMenu.nib
    doc
    log
    script
    test/unit
    vendor
    vendor/plugins
  )
end