# == Schema Information
# Schema version: 20090222005710
#
# Table name: users
#
#  id                        :integer(4)      not null, primary key
#  login                     :string(40)
#  first_name                :string(100)
#  last_name                 :string(100)
#  email                     :string(100)
#  crypted_password          :string(40)
#  salt                      :string(40)
#  created_at                :datetime
#  updated_at                :datetime
#  remember_token            :string(40)
#  remember_token_expires_at :datetime
#  city_id                   :integer(4)
#  avatar_file_name          :string(255)
#  avatar_content            :string(255)
#  avatar_file_size          :integer(4)
#  sex                       :string(255)
#  status                    :string(255)
#  occupation                :string(255)
#  birthday                  :date
#

require 'digest/sha1'

class User < ActiveRecord::Base
  include Authentication
  include Authentication::ByPassword
  include Authentication::ByCookieToken

  validates_presence_of     :login
  validates_length_of       :login,    :within => 3..40
  validates_uniqueness_of   :login
  validates_format_of       :login,    :with => Authentication.login_regex, :message => Authentication.bad_login_message

  validates_presence_of     :email
  validates_length_of       :email,    :within => 6..100 #r@a.wk
  validates_uniqueness_of   :email
  validates_format_of       :email,    :with => Authentication.email_regex, :message => Authentication.bad_email_message

  belongs_to :city

  has_many :pops
  has_many :places, :through => :pops, :uniq => true

  has_many :feeds
  has_many :feed_items, :through => :feeds

  has_many :sent_messages,
    :foreign_key => "sender_id",
    :class_name  => "Message"

  has_many :received_messages,
    :foreign_key => "receiver_id",
    :class_name  => "Message"

  has_many :friendships
  has_many :friends, :through => :friendships, :class_name => "User"

  has_many :wishlists
  has_many :wished_places, :through => :wishlists, :class_name => "Place", :uniq => true

  has_many :social_networks

  has_attached_file :avatar, :styles => { :large => "70x70", :thumb => "45x45" }

  # HACK HACK HACK -- how to do attr_accessible from here?
  # prevents a user from submitting a crafted form that bypasses activation
  # anything else you want your user to change should be added here.
  attr_accessible :login, :email, :first_name, :last_name,
    :password, :password_confirmation, :birthday, :occupation,
    :city

  def to_param
    self.login
  end

  def name(length = :long)
    # :long means first_name last_name
    if self.first_name && self.last_name && (length == :long)
      [self.first_name, self.last_name].join ' '
    elsif self.first_name && (length == :short)
      self.first_name
    else
      self.login
    end
  end

  def age
    (Time.now.year - self.birthday.year).round if self.birthday
  end

  def locations
    array = [self.city]
    array << self.city.state if self.city.state
    array << self.city.country
    array
  end

  def popped_in? place
    self.pops.count(:conditions => {:place_id => place.id}) > 0
  end
  # Suggested places to find a random number of places which dont belong to user
  def suggested_places(limit=5)
    own_places = self.places.find(:all, :select => "`places`.id")
    places_query = own_places.empty? ? "NULL" : own_places.collect(&:id).join(',')
    Place.all(:conditions => "`places`.id NOT IN (#{places_query})", :limit => limit, :order => "RAND()")
  end

  # Authenticates a user by their login name and unencrypted password.  Returns the user or nil.
  #
  # uff.  this is really an authorization, not authentication routine.  
  # We really need a Dispatch Chain here or something.
  # This will also let us return a human error message.
  #
  def self.authenticate(login, password)
    return nil if login.blank? || password.blank?
    u = find_by_login(login) # need to get the salt
    u && u.authenticated?(password) ? u : nil
  end

  def login=(value)
    write_attribute :login, (value ? value.downcase : nil)
  end

  def email=(value)
    write_attribute :email, (value ? value.downcase : nil)
  end

  protected
    


end