require 'digest'
require 'vkontakte'

class ApplicationController < ActionController::Base
  protect_from_forgery
  before_filter :set_locale
  
  def cache_for time
    response.headers['Cache-Control'] = 'public, max-age=' + time.seconds.to_s
  end
  
  def compile_page params
    @data = params[:data] unless params[:data].nil?
    @status = params[:status] unless params[:status].nil?
    render json: {
      renderer: "unified",
      data: @data,
      html: render_compact_partial(params[:partial]),
      title: params[:title],
      status: (params[:status] unless params[:status].nil?),
      callback: (params[:callback] unless params[:callback].nil?)
    }, include: (params[:include] unless params[:include].nil?)
  end
  
  def get_artist_name_from_query
    params[:artist].gsub('%20', ' ').gsub('+', ' ').gsub('.html', '')
  end
  
protected
  
  def authorize
    unless Vkontakte.check(params)
      render json: { status: 'login failed' }, status: 403
    end
  end
  
  def set_locale
    session = Session.find_by_key(session_key)
    unless session.nil?
      I18n.locale = session.user.lang
    end
  end
  
  def session_key
    if cookies[:beathaven_sid].nil?
      cookies[:beathaven_sid] = {
        :value => Session.generate_key,
        :expire => 42.years.from_now.utc
      }
    end
    cookies[:beathaven_sid]
  end
  
  def render_compact_partial partial_name
    (render_to_string :partial => partial_name.to_s).gsub(/\n(\s+)?/, '')
  end
end