## Jotter Controller
class JottersController < ApplicationController

before_filter :login_required
  # GET /jotters
  # GET /jotters.xml
  def index
    if current_user.admin?
      @jotters=  @jotter = Jotter.find(:all,
                                       :order => "created_at DESC")
    else
      @jotters = current_user.jotters
    end

    respond_to do |format|
      format.html # index.rhtml
      format.xml  { render :xml => @jotters.to_xml }
    end
  end

  # GET /jotters/1
  # GET /jotters/1.xml
  def show
    @jotter = Jotter.find(params[:id])
    respond_to do |format|
      format.html # show.rhtml
      format.xml  { render :xml => @jotter.to_xml }
    end
  end

  # GET /jotters/new
  def new
    @jotter = Jotter.new
    @jotter.creator = current_user
  end

  # GET /jotters/1;edit
  def edit
    @jotter = Jotter.find(params[:id])
      @jotter.user_id = current_user.id

  end

  # POST /jotters
  # POST /jotters.xml
  def create
    @jotter = Jotter.new(params[:jotter])
@jotter.user_id = current_user.id
    respond_to do |format|
      if @jotter.save
        flash[:notice] = 'Jotter was successfully created.'
        format.html { redirect_to jotter_url(@jotter) }
        format.xml  { head :created, :location => jotter_url(@jotter) }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @jotter.errors.to_xml }
      end
    end
  end

  # PUT /jotters/1
  # PUT /jotters/1.xml
  def update
    @jotter = Jotter.find(params[:id])
    @jotter.user_id = current_user.id
    respond_to do |format|
      if @jotter.update_attributes(params[:jotter])
        flash[:notice] = 'Jotter was successfully updated.'
        format.html { redirect_to jotter_url(@jotter) }
        format.xml  { head :ok }
         for user in User.find(@jotter.users) do
           email = user.email
           SiteMailer.deliver_jotterUpdated(@jotter, email)
          end
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @jotter.errors.to_xml }
      end
    end
  end

  # DELETE /jotters/1
  # DELETE /jotters/1.xml
  def destroy
    @jotter = Jotter.find(params[:id])
    @jotter.destroy

    respond_to do |format|
      format.html { redirect_to jotters_url }
      format.xml  { head :ok }
    end
  end


  private
end



## Jotter Model
class Jotter < ActiveRecord::Base
  acts_as_versioned
  has_and_belongs_to_many :users
  validates_presence_of :title
  has_many :comments, :order => "created_at DESC"
  belongs_to :creator, :class_name => "User", :foreign_key => "user_id"
  def has_revisions?
    version > 1
  end

  def jotter_owner?
    current.user = jotter.owner
  end

end

## User Model
require 'digest/sha1'
class User < ActiveRecord::Base
  # Virtual attribute for the unencrypted password
  attr_accessor :password
   has_and_belongs_to_many :jotters
   has_many :created_jotters, :class_name => "Jotter"
  validates_presence_of     :login, :email
  validates_presence_of     :password,                   :if => :password_required?
  validates_presence_of     :password_confirmation,      :if => :password_required?
  validates_length_of       :password, :within => 4..40, :if => :password_required?
  validates_confirmation_of :password,                   :if => :password_required?
  validates_length_of       :login,    :within => 3..40
  validates_length_of       :email,    :within => 3..100
  validates_uniqueness_of   :login, :email, :case_sensitive => false
  before_save :encrypt_password

  # 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, :password, :password_confirmation, :first_name, :last_name, :admin

  # Authenticates a user by their login name and unencrypted password.  Returns the user or nil.
  def self.authenticate(login, password)
    u = find_by_login(login) # need to get the salt
    u && u.authenticated?(password) ? u : nil
  end

  # Encrypts some data with the salt.
  def self.encrypt(password, salt)
    Digest::SHA1.hexdigest("--#{salt}--#{password}--")
  end

  # Encrypts the password with the user salt
  def encrypt(password)
    self.class.encrypt(password, salt)
  end

  def authenticated?(password)
    crypted_password == encrypt(password)
  end

  def remember_token?
    remember_token_expires_at && Time.now.utc < remember_token_expires_at
  end

  # These create and unset the fields required for remembering users between browser closes
  def remember_me
    remember_me_for 2.weeks
  end

  def remember_me_for(time)
    remember_me_until time.from_now.utc
  end

  def remember_me_until(time)
    self.remember_token_expires_at = time
    self.remember_token            = encrypt("#{email}--#{remember_token_expires_at}")
    save(false)
  end

  def forget_me
    self.remember_token_expires_at = nil
    self.remember_token            = nil
    save(false)
  end

  # Returns true if the user has just been activated.
  def recently_activated?
    @activated
  end

  protected
    # before filter
    def encrypt_password
      return if password.blank?
      self.salt = Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--") if new_record?
      self.crypted_password = encrypt(password)
    end

    def password_required?
      crypted_password.blank? || !password.blank?
    end


end