class UsersController < ApplicationController

  before_filter :check_for_cancel
  before_filter :authenticate_user!
  before_filter :is_admin?

  # GET /users
  # GET /users.json
  def index
    @users =  Kaminari.paginate_array(User.all).page(params[:page]).per(10)

    respond_to do |format|
      format.html # index.html.erb
      format.json { render :json => @users }
    end
  end


  # GET /users/1
  # GET /users/1.json
  def show
    @user = User.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.json { render :json => @user }
    end
  end

  # GET /users/new
  # GET /users/new.json
  def new
    @user = User.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render :json => @user }
    end
  end

  # GET /users/1/edit
  def edit
    @user = User.find(params[:id])
  end

  # POST /users
  # POST /users.json
  def create
    @user = User.new(params[:user])

    respond_to do |format|
      if @user.save
        format.html { redirect_to @user, :notice => 'User was successfully created.' }
        format.json { render :json => @user, :status => :created, :location => @user }
      else
        format.html { render :action => "new" }
        format.json { render :json => @user.errors, :status => :unprocessable_entity }
      end
    end
  end

  # PUT /users/1
  # PUT /users/1.json
  def update
    @user = User.find(params[:id])

    respond_to do |format|
      if @user.update_attributes(params[:user])
        format.html { redirect_to @user, :notice => 'User was successfully updated.' }
        format.json { head :ok }
      else
        format.html { render :action => "edit" }
        format.json { render :json => @user.errors, :status => :unprocessable_entity }
      end
    end
  end

  # DELETE /users/1
  # DELETE /users/1.json
  def destroy
    @user = User.find(params[:id])
    @user.destroy

    respond_to do |format|
      format.html { redirect_to users_url }
      format.json { head :ok }
    end
  end
  
  def is_admin?
    unless (current_user && current_user.admin?)
      flash[:error] = 'You are not an Admin'
        redirect_to root_path
    end
  end

  def check_for_cancel
    if params[:commit] == 'cancel'
      redirect_to :back
    end
  end
end