raise 'fuc'

require 'abstract_interface/support'
require 'abstract_interface/haml_builder'
require 'abstract_interface/view_builder'
require 'abstract_interface/view_helper'

Crystal::TemplateContext.send :include, AbstractInterface::ViewHelper

# TODO2
# ActionView::Base.field_error_proc = lambda do |html_tag, instance|
#   html_tag
# end

module AbstractInterface
  class << self
    inject :logger => :logger, :config => :config
    
    attr_accessor :plugin_name
    attr_accessor :layout_configurations_dir
    
    def generate_helper_methods *args
      AbstractInterface::ViewBuilder.generate_helper_methods *args
    end
    
    def available_themes; @available_themes ||= [] end
        
    def theme_metadata theme
      logger.warn "Complex calculation (AbstractInterface.theme_metadata) called in production!" if config.production?
      
      metadata = {}

      name = "#{dir}/#{Crystal::Template::DIRECTORY_NAME}/#{theme}/metadata.rb"
      if Crystal::Environment.file_exist? name
        fname = Crystal::Environment.find_file name
        code = File.read fname
        metadata = eval code
        metadata.should! :be_a, Hash        
      end
      
      metadata.to_openobject
    end
    
    def layouts_defined?
      !!layout_configurations_dir
    end
    
    def layout_definitions theme
      name = "#{layout_configurations_dir.should_not_be!(:empty)}/#{theme}.yml"
      raise "File '#{name}' not exist!" unless Crystal::Environment.file_exist? name

      fname = Crystal::Environment.find_file name
      lds = YAML.load_file(fname)
      validate_layout_definition!(lds, theme)
      lds
    end
    cache_with_params! :layout_definitions unless Rails.development?
    
    protected
      def validate_layout_definition! lds, theme
        lds.should! :be_a, Hash
        unless lds.include?('default')
          raise "No 'default' layout definition for '#{theme}' Theme (there always should be definition for 'default' layout)!"
        end
        lds.each do |theme_name, ld|
          ld.should! :be_a, Hash
          ld.should! :include, 'layout_template'
          ld.should! :include, 'slots'
          ld['slots'].should! :be_a, Hash
        end
      end
  end
    
end

# TODO1
# Rails.development{RailsExt.create_public_symlinks!} # rails_ext.css, rails_ext.js in development mode