module Typus

  class << self

    def version
      @@version ||= File.read("#{root}/VERSION").strip
    end

    def root
      File.dirname(__FILE__) + '/../'
    end

    def locales
      [ [ "German", 'de' ],
        [ "English", 'en' ], 
        [ "Español", 'es' ],
        [ "Français", 'fr' ],
        [ "Portuguese", 'pt-BR' ], 
        [ "Russian", 'ru' ] ]
    end

    def applications
      Typus::Configuration.config.collect { |i| i.last['application'] }.compact.uniq.sort
    end

    # List of the modules of an application.
    def application(name)
      Typus::Configuration.config.collect { |i| i.first if i.last['application'] == name }.compact.uniq.sort
    end

    def models
      Typus::Configuration.config.map { |i| i.first }.sort
    end

    def models_on_header
      models.collect { |m| m if m.constantize.typus_options_for(:on_header) }.compact
    end

    # List of resources, which are tableless models.
    def resources(models = get_model_names)

      all_resources = Typus::Configuration.roles.keys.map do |key|
                        Typus::Configuration.roles[key].keys
                      end.flatten.sort.uniq

      all_resources.delete_if { |x| models.include?(x) || x == 'TypusUser' } rescue []

    end

    def get_model_names
      Dir[ "#{Rails.root}/app/models/**/*.rb", 
           "#{Rails.root}/vendor/plugins/**/app/models/**/*.rb" ].collect { |m| File.basename(m).sub(/\.rb$/,'').camelize }
    end

    def user_class
      Typus::Configuration.options[:user_class_name].constantize
    end

    def user_fk
      Typus::Configuration.options[:user_fk]
    end

    def relationship
      Typus::Configuration.options[:relationship]
    end

    def testing?
      Rails.env.test? && Dir.pwd == "#{Rails.root}/vendor/plugins/typus"
    end

    def plugin?
      File.exist?("#{Rails.root}/vendor/plugins/typus")
    end

    def boot!

      # return unless File.exists?("#{Rails.root}/config/initializers/typus.rb") || testing?
      return if %w( script/generate script/destroy ).include?($0)

      if testing?
        Typus::Configuration.options[:config_folder] = 'vendor/plugins/typus/test/config/working'
      end

      # Ruby Extensions
      require 'typus/hash'
      require 'typus/object'
      require 'typus/string'

      # Load configuration and roles.
      Typus::Configuration.config!
      Typus::Configuration.roles!

      # Load translation files from the plugin or the gem.
      unless plugin?
        Gem.path.each { |g| I18n.load_path += Dir[File.join("#{g}/gems/typus-#{version}/config/locales/*.{rb,yml}")] }
      end

      # Require the test/models on when testing.
      require File.dirname(__FILE__) + '/../test/models' if testing?

      # Rails Extensions.
      require 'typus/active_record'
      require 'typus/extensions/routes'

      # Mixins.
      require 'typus/authentication'
      require 'typus/format'
      require 'typus/generator'
      require 'typus/preview'
      require 'typus/preferences'
      require 'typus/reloader'
      require 'typus/quick_edit'
      require 'typus/user'

      # Vendor.
      require 'vendor/active_record'
      require 'vendor/paginator'
      require 'vendor/rss_parser'

      # Gems.
      begin
        require 'Rdiscount'
      rescue LoadError
      end

      # Run controllers generator ...
      generator unless testing? || Rails.env.production?

    end

  end

end