class FacetOptionizer

  def initialize(params)
    @params = params
    strip_blanks!
  end

  def generate
    {:conditions => @params[:conditions],
     :geo => geo,
     :with => {:@geodist => geodist,
               :bounty => bounty,
               :category_search => category_search,
               :created_at => created_at},
     :order => order}
  end

  def strip_blanks!
    @params.reject! {|k, v| v.empty? }
  end

  def order
    @params[:order] || "bounty DESC"
  end

  def geo
    [@params[:current_location].lat, @params[:current_location].lng].map(&:to_radians)
  end

  def category_search
    @params[:category].gsub('&', '').to_crc32 if @params[:category]
  end

  def geodist
    # return 100,000,000.0 if "any" or nil
    @params[:distance].to_i.zero? ? 100_000_000.0 : @params[:distance].to_f.to_miles
  end

  def bounty
    price_start = @params[:price_range_start]
    price_end   = @params[:price_range_end]

    (price_start.to_f)..(price_end.to_f) if price_start && price_end
  end

  def created_at
    start_date = @params[:start_date]
    end_date   = @params[:end_date]

    (start_date.to_time)..(end_date.to_time.end_of_day) if start_date && end_date
  end

end