gistfile1.builder

class User
  include Mongoid::Document

  field :name, :type => String
  field :alternate_id, :type => String
  field :birthday, :type => Date
  
  embeds_many :relationships, :class_name => "Relationship"

  after_destroy :destroy_relationships

  def follow(user_to_follow)
    # TODO: establish rel_type for relationships, 
    # add in friending ability
    unless self.im_following?(user_to_follow)
      if user_to_follow.im_following?(self)
        # a relationship already exists between the two, 
        # so establish a friendship by updating it
        puts("making a friendship") #DEBUG
        r = relationships.all(:rel_user => user_to_follow).first
        puts(r.rel_type) #DEBUG
        r.rel_type = "friends with"
        r.save
        r2 = user_to_follow.relationships.all(:rel_user => self).first
        puts(r2.rel_type) #DEBUG
        r2.rel_type = "friends with"
        r2.save
      else
        # a relationship does not exist between the two, 
        # so establish a one-way following relationship
        # This is TWO relationships of different rel_type.
        puts("making a one-way following") #DEBUG
        r = Relationship.new(:rel_user => user_to_follow, :rel_type => "following")
        self.relationships << r
        r.save
        r2 = Relationship.new(:rel_user => self, :rel_type => "followed_by")
        user_to_follow.relationships << r2
        r2.save
      end
    end
  end

  def im_following?(user_in_question)
    if self.relationships.all(:conditions => {:rel_user => user_in_question, :rel_type => "following" }).count == 1
      return true
    else
      return false
    end
  end

  def followed_by?(user_in_question)
    user_in_question.im_following?(self)
  end

  def friends_with?(user_in_question)
    self.im_following?(user_in_question) and self.followed_by?(user_in_question)
  end

  protected
  def destroy_relationships
    
  end
end