require "trestle/version"

require "active_support/all"
require "kaminari"

module Trestle
  extend ActiveSupport::Autoload

  autoload :Adapters
  autoload :Admin
  autoload :ApplicationController
  autoload :Attribute
  autoload :Breadcrumb
  autoload :Builder
  autoload :Configurable
  autoload :Configuration
  autoload :Display
  autoload :EvaluationContext
  autoload :Form
  autoload :Hook
  autoload :ModelName
  autoload :Navigation
  autoload :Options
  autoload :Reloader
  autoload :Resource
  autoload :Scopes
  autoload :Tab
  autoload :Table
  autoload :Toolbar

  module Controller
    extend ActiveSupport::Autoload

    autoload :Breadcrumbs
    autoload :Callbacks
    autoload :Dialog
    autoload :Helpers
    autoload :Layout
    autoload :Location
    autoload :Title
    autoload :Toolbars
  end

  mattr_accessor :admins
  self.admins = {}

  def self.admin(name, options={}, &block)
    register(Admin::Builder.create(name, options, &block))
  end

  def self.resource(name, options={}, &block)
    register(Resource::Builder.create(name, options, &block))
  end

  def self.register(admin)
    self.admins[admin.admin_name] = admin
  end

  def self.lookup(admin)
    return admin if admin.is_a?(Class) && admin < Trestle::Admin
    self.admins[admin.to_s]
  end

  def self.config
    @configuration ||= Configuration.new
  end

  def self.configure(&block)
    config.configure(&block)
  end

  def self.navigation(context)
    blocks = config.menus + admins.values.map(&:menu).compact
    Navigation.build(blocks, context)
  end

  def self.i18n_fallbacks(locale=I18n.locale)
    if I18n.respond_to?(:fallbacks)
      I18n.fallbacks[locale]
    elsif locale.to_s.include?("-")
      fallback = locale.to_s.split("-").first
      [locale, fallback]
    else
      [locale]
    end
  end
end

require "trestle/engine" if defined?(Rails)