require "rails/generators"

class Datagrid::Scaffold < Rails::Generators::NamedBase
  source_root File.expand_path(__FILE__ + "/../../../templates")

  def create_scaffold
    template "grid.rb.erb", "app/grids/#{grid_class_name.underscore}.rb"
    template "controller.rb.erb", "app/controllers/#{grid_controller_name.underscore}.rb"
    template "index.html.erb", "app/views/#{grid_controller_short_name}/index.html.erb"
    route("resources :#{grid_controller_short_name}")
    in_root do
      inject_into_file "app/assets/stylesheets/application.css", " *= require datagrid", {:before => %r{require_self}} # before all
    end
  end

  def grid_class_name
    file_name.camelize.pluralize + "Grid"
  end
  
  def grid_controller_name
    grid_controller_short_name.camelize + "Controller"
  end

  def grid_controller_short_name
    file_name.underscore.pluralize
  end

  def grid_model_name
    file_name.camelize.singularize
  end

  def grid_ivar_name
    grid_class_name.underscore
  end

  def paginate_code
    if defined?(Kaminari)
      "page(params[:page])"
    elsif defined?(WillPaginate)
      "paginate(:page => params[:page])"
    else
      "paginate_somehow"
    end
  end

  def pagination_helper_code
    if defined?(Kaminari)
      "paginate(@assets)"
    elsif defined?(WillPaginate)
      "will_paginate(@assets)"
    else
      "some_pagination_helper(@assets)"
    end

  end

  def grid_route_name
    grid_controller_short_name + "_path"
  end

end