require "effective_pages/engine"
require 'migrant'     # Required for rspec to run properly

module EffectivePages
  mattr_accessor :pages_table_name
  mattr_accessor :menus_table_name
  mattr_accessor :menu_items_table_name

  mattr_accessor :pages_path
  mattr_accessor :excluded_pages
  mattr_accessor :excluded_layouts

  mattr_accessor :authorization_method
  mattr_accessor :simple_form_options
  mattr_accessor :layout
  mattr_accessor :menu

  def self.setup
    yield self
  end

  def self.authorized?(controller, action, resource)
    if authorization_method.respond_to?(:call) || authorization_method.kind_of?(Symbol)
      raise Effective::AccessDenied.new() unless (controller || self).instance_exec(controller, action, resource, &authorization_method)
    end
    true
  end

  def self.pages
    Rails.env.development? ? read_pages : (@@pages ||= read_pages)
  end

  def self.layouts
    Rails.env.development? ? read_layouts : (@@layouts ||= read_layouts)
  end

  # Remove leading and trailing '/' characters
  #  Will return:  "effective/pages"
  def self.pages_path=(filepath)
    filepath = filepath.to_s
    filepath = filepath[1..-1] if filepath.starts_with?('/')
    @@pages_path = filepath.chomp('/')
  end

  private

  def self.read_pages
    files = ApplicationController.view_paths.map { |path| Dir["#{path}/#{pages_path}/**"] }.flatten.reverse

    HashWithIndifferentAccess.new().tap do |pages|
      files.each do |file|
        name = File.basename(file).split('.').first
        next if name.starts_with?('_') || Array(EffectivePages.excluded_pages).map(&:to_s).include?(name)

        pages[name.to_sym] = {}
      end
    end
  end

  def self.read_layouts
    files = ApplicationController.view_paths.map { |path| Dir["#{path}/layouts/**"] }.flatten.reverse

    HashWithIndifferentAccess.new().tap do |layouts|
      files.each do |file|
        name = File.basename(file).split('.').first
        next if name.starts_with?('_') || Array(EffectivePages.excluded_layouts).map(&:to_s).include?(name)

        layouts[name.to_sym] = {}
      end
    end
  end

end