class StatisticsController < ApplicationController
  before_filter :authenticate_user!
  before_filter :redirect_unless_admin 
  
  def index
    @statistics = Statistic.find(:all, :order => 'created_at DESC').paginate(:page => params[:page], :per_page => 15)
  end

  def show
    @statistic = Statistic.where(:id => params[:id]).first
    @distribution = @statistic.distribution_as_array
    @google_chart_url = Gchart.line( :size => '700x400', 
                                     :title => "Posts on day",
                                     :bg => 'efefef',
                                     :legend => ['Posts'],
                                     :data => @distribution,
                                     :max_value => 1,
                                     :axis_with_labels => ['x','y'],
                                     :axis_labels => [(0..@distribution.length-1).to_a.map{|d| d%10==0 ? d : ''},
                                                      (0..10).to_a.map!{|int| int.to_f/10}]
                                   )
  end

  def generate_single
    stat = Statistic.generate()
    redirect_to stat
  end

  def user_search
    user = params[:user] || {}
    user = user.delete_if {|key, value| value.blank? }
    params[:user] = user

    if user.keys.count == 0
      @users = []
    else
      @users = User.where(params[:user]).all || []
    end

    render 'statistics/user_search'
  end

  def admin_inviter
    Invitation.create_invitee(:identifier => params[:identifier])
    flash[:notice] = "invitation sent to #{params[:identifier]}"
    redirect_to 'statistics/user_search'
  end

end