radiorabe / raar / 11900633159

module Stats

  class Base

    attr_reader :date_range

    class << self

      def for(year, month = nil)

        new(date_range_for(year, month))

      end

      private

      def date_range_for(year, month = nil)

        Date.new(year.to_i, (month || 1).to_i, 1)..Date.new(year.to_i, (month || 12).to_i, -1)

      end

    end

    def initialize(date_range)

      @date_range = date_range

    end

    private

    def tracks

      Track

        .within(date_range.first.at_beginning_of_day, date_range.last.at_end_of_day)

        .joins(:broadcast)

    end

    def sort_counts(counts)

      counts.sort_by { |key, value| [-value, key] }.to_h

    end

  end

end