module HowAreWeDoing
  module Controllers
    module ReportsHelpers
      def self.included(base)
        base.respond_to :html, :json, :xml, :js
        base.before_filter :set_dates, :only => :index
        base.before_filter :set_graph_type, :only => :index
        base.before_filter :set_analyticals, :only => :index
      end
      # extend ActiveSupport::Concern
      # 
      # included do      
      #   respond_to :html, :json, :xml, :js
      #   before_filter :set_dates, :only => :index
      #   before_filter :set_graph_type, :only => :index
      #   before_filter :set_analyticals, :only => :index
      # end
  
      def index
        respond_to do |format|
          format.html
          format.json do
            render :json => { 
              :metrics => {
                :totals => params[:exclude_totals] ? {} : {
                  :data => Total.send("json_data_for_#{params[:graph_type]}",params),
                  :label => "Totals",
                  :color => 0,
                  :ticks => Total.send("json_labels_for_#{params[:graph_type]}",params)
                },
                :prints => params[:exclude_prints] ? {} : {
                  :data => Print.send("json_data_for_#{params[:graph_type]}",params),
                  :label => "Prints",
                  :color => 1,
                  :ticks => Print.send("json_labels_for_#{params[:graph_type]}",params)
                },
                :views => params[:exclude_views] ? {} : {
                  :data => View.send("json_data_for_#{params[:graph_type]}",params),
                  :label => "Views",
                  :color => 2,
                  :ticks => View.send("json_labels_for_#{params[:graph_type]}",params)
                },
                :shares => params[:exclude_shares] ? {} : {
                  :data => Share.send("json_data_for_#{params[:graph_type]}",params),
                  :label => "Shares",
                  :color => 3,
                  :ticks => Share.send("json_labels_for_#{params[:graph_type]}",params)
                }
              },
              :format_options => format_options
            }
          end
        end
      end
  
      protected
      def set_analyticals
        @analyticals = params[:analytical_type] ? params[:analytical_type].classify.constantize.order('id DESC') : []
        @analytical_ids = params[:analytical_ids] ? params[:analytical_ids] : @analyticals.first.nil? ? [] : [@analyticals.first.id]
        
        if @analytical_ids.empty? && params[:default_analytical_type]
          @analyticals = params[:default_analytical_type].classify.constantize.order('id DESC')
          @analytical_ids = @analyticals.limit(1).map(&:id)
        end
      end
  
      def format_options
        params[:graph_type] == 'line_graph' ?  { :xaxis => { :max => "#{params[:end_date].to_time.to_i}000", :min => "#{params[:start_date].to_time.to_i}000"} } : {}
      end
  
      def set_graph_type
        params[:graph_type] = params[:analytical_type].blank? ? 'line_graph' : 'bar_graph'
      end
  
      def set_dates
        params[:start_date] ||= (Time.now - 2.weeks)
        params[:end_date] ||= Time.now
        if params[:start_date].to_s.match(/\//)
          params[:start_date] = Date.strptime(params[:start_date], '%m/%d/%Y')
          params[:end_date] = Date.strptime(params[:end_date], '%m/%d/%Y')
        else
          params[:start_date] = Date.parse(params[:start_date].to_s)
          params[:end_date] = Date.parse(params[:end_date].to_s)
        end
        
        params[:start_date] = params[:start_date].to_time.utc.beginning_of_day
        params[:end_date] = params[:end_date].to_time.utc.beginning_of_day
    
      end
    end
  end
end