#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
#   licensed under the Affero General Public License version 3 or later.  See
#   the COPYRIGHT file.

class ApplicationController < ActionController::Base
  has_mobile_fu

  protect_from_forgery :except => :receive

  before_filter :ensure_http_referer_is_set
  before_filter :set_header_data, :except => [:create, :update, :destroy]
  before_filter :set_locale
  before_filter :set_git_header if (AppConfig[:git_update] && AppConfig[:git_revision])
  before_filter :set_grammatical_gender

  prepend_before_filter :clear_gc_stats

  inflection_method :grammatical_gender => :gender

  helper_method :all_aspects,
                :all_contacts_count,
                :my_contacts_count,
                :only_sharing_count,
                :tag_followings,
                :tags,
                :open_publisher

  def ensure_http_referer_is_set
    request.env['HTTP_REFERER'] ||= '/aspects'
  end

  # we need to do this for vanna controller.  these should really be controller
  # helper methods instead
  def set_header_data
    if user_signed_in?
      if request.format.html? && !params[:only_posts]
        @notification_count = Notification.for(current_user, :unread =>true).count
        @unread_message_count = ConversationVisibility.sum(:unread, :conditions => "person_id = #{current_user.person.id}")
      end
    end
  end

  # Overwriting the sign_out redirect path method
  def after_sign_out_path_for(resource_or_scope)
    # mobile_fu's is_mobile_device? wasn't working here for some reason...
    # it may have been just because of the test env.
    if request.env['HTTP_USER_AGENT'].match(/mobile/i)
      root_path
    else
      logged_out_path
    end
  end

  ##helpers
  def all_aspects
    @all_aspects ||= current_user.aspects
  end

  def all_contacts_count
    @all_contacts_count ||= current_user.contacts.count
  end

  def my_contacts_count
    @my_contacts_count ||= current_user.contacts.receiving.count
  end

  def only_sharing_count
    @only_sharing_count ||= current_user.contacts.only_sharing.count
  end

  def ensure_page
    params[:page] = params[:page] ? params[:page].to_i : 1
  end

  def set_git_header
    headers['X-Git-Update'] = AppConfig[:git_update]
    headers['X-Git-Revision'] = AppConfig[:git_revision]
  end

  def set_locale
    if user_signed_in?
      I18n.locale = current_user.language
    else
      I18n.locale = request.compatible_language_from AVAILABLE_LANGUAGE_CODES
    end

    WillPaginate::ViewHelpers.pagination_options[:previous_label] = "&laquo; #{I18n.t('previous')}"
    WillPaginate::ViewHelpers.pagination_options[:next_label] = "#{I18n.t('next')} &raquo;"
  end

  def clear_gc_stats
    GC.clear_stats if GC.respond_to?(:clear_stats)
  end

  def redirect_unless_admin
    unless current_user.admin?
      redirect_to root_url, :notice => 'you need to be an admin to do that'
      return
    end
  end

  def set_grammatical_gender
    if (user_signed_in? && I18n.inflector.inflected_locale?)
      gender = current_user.profile.gender.to_s.tr('!()[]"\'`*=|/\#.,-:', '').downcase
      unless gender.empty?
        i_langs = I18n.inflector.inflected_locales(:gender)
        i_langs.delete  I18n.locale
        i_langs.unshift I18n.locale
        i_langs.each do |lang|
          token = I18n.inflector.true_token(gender, :gender, lang)
          unless token.nil?
            @grammatical_gender = token
            break
          end
        end
      end
    end
  end

  def grammatical_gender
    @grammatical_gender || nil
  end

  def after_sign_in_path_for(resource)
    stored_location_for(:user) || (current_user.getting_started? ? getting_started_path : multi_path)
  end

  def tag_followings
    if current_user
      if @tag_followings == nil
        @tag_followings = current_user.tag_followings
      end
      @tag_followings
    end
  end

  def tags
    @tags ||= current_user.followed_tags
  end

  def save_sort_order
    if params[:sort_order].present?
      session[:sort_order] = (params[:sort_order] == 'created_at') ? 'created_at' : 'updated_at'
    elsif session[:sort_order].blank?
      session[:sort_order] = 'created_at'
    else
      session[:sort_order] = (session[:sort_order] == 'created_at') ? 'created_at' : 'updated_at'
    end
  end

  def default_stream_action(stream_klass)
    authenticate_user!
    save_sort_order
    @stream = stream_klass.new(current_user, :max_time => max_time, :order => sort_order)

    if params[:only_posts]
      render :partial => 'shared/stream', :locals => {:posts => @stream.stream_posts}
    else
      render 'aspects/index'
    end
  end

  def sort_order
    is_mobile_device? ? 'created_at' : session[:sort_order]
  end

  def max_time
    params[:max_time] ? Time.at(params[:max_time].to_i) : Time.now
  end
end