class User < ActiveRecord::Base
  def protected?
    protected
  end

  has_many :tweets, :dependent => :delete_all
  has_many :favorites, :dependent => :delete_all
  has_many :retweets, :dependent => :delete_all

  def self.cached(uid)
    Rails.cache.fetch("user/#{uid}", :expires_in => 1.hour) do
      where(:id => uid).first
    end
  end

  def registered?
    Account.exists?(:user_id => id)
  end

  def profile_image_url_original
    profile_image_url.sub(/_normal((\.(png|jpeg|gif))?)/, "\\1")
  end

  def stats
    return @stats_cache if @stats_cache

    hash = tweets.inject(Hash.new(0)) do |hash, m|
      hash[:favorited_count] += m.favorites_count
      hash[:retweeted_count] += m.retweets_count
      hash
    end
    hash[:favorites_count] = favorites.count
    hash[:retweets_count] = retweets.count
    hash[:tweets_count] = tweets.count

    @stats_cache = hash
  end
end